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Home My WebLink AboutLUA-05-080LIST OF SURROUNDING PROPERTY OWNERS ,.f";;;' JUN 2 S LJuJ WITHIN 300-FEET OF THE SUBJECT SITE City of Renton Development Services Division 1055 South Grady Way, Renton, WA 98055 Phone: 425-430-7200 Fax: 425-430-7231 k::>e({~~~tJ;AME:_--=N-=--=2=6t=h:....::S=t:..:..I-=-P-=a:.:.,;rk:.:...:...P=L-=-N=-S=-t=o:.:..rm:.:.:....:S"'-'VL.:s=te=m.:.:....:,.P-=-r=oiL:e=ct=--_______ _ t }j.~;i.<::.I'');:ff- APPLICATION NO: __________________________ _ The following is a list of property owners within 300 feet of the subject site. The Development Services Division will notify these individuals of the proposed development. NAME ABBEY VINCENT H D EXECUTOR ARNOLD GARY & RENEE BANASKY PATRICIA BOEHME JOE BRE PROPERTIESITAX DEPT BURLINGTON NORTHRN SANTA FE CARLSEN III JOHN A CITY OF RENTON COLLIER GEORGE F ENNEKING RONALD+DONNA ADDRESS 9005 21ST AV NW SEATTLE WA 98117 2520 PARK PL N RENTON WA 98056 4310 NE 5TH CT#102 RENTON WA 98059 2607 MEADOW AV N RENTON WA 98055 44 MONTGOMERY 36TH FLR SAN FRANCISCO CA 94104 ATTN PROP TAX PO BOX 96189 FORT WORTH TX 76161 17553 SE 133RD RENTON WA 98056 1055 S GRADY WY RENTON WA 98055 2419 MEADOW AV N RENTON WA 98055 1325 N 24TH ST RENTONWA 98056 ASSESSOR'S PARCEL NUMBER 334450029007 229650014207 229650012102 229650011005 052305903909 052305900301 052305904204 052305903305 229650013001 052305902406 H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1303 SEPA PIO Info\OC-03-SEPA Owner List-FinaLdoc\OCtp .' FELL LARRY E 1402 N 26TH ST 229650011708 RENTONWA 98056 FLEMING ROGER M 1404 N 24TH ST 052305900400 RENTONWA 98056 FOSS LAUNCH & TUG CO 660W EWONG 052305905102 SEATTLE WA 98119 FRIENDS OF YOUTH GRIFFIN HOME 229650016509 16225 NE 87TH A-6 REDMOND WA 98052 FRIENDS OF YOUTH GRIFFIN HOME 229650017002 16225 NE 87TH A-6 REDMOND WA 98052 FRIENDS OF YOUTH GRIFFIN HOME 229650018000 16225 NE 87TH A-6 REDMOND WA 98052 FRIENDS OF YOUTH GRIFFIN HOME 229650018505 16225 N E 87TH A-6 REDMOND WA 98052 GALVIN CATHERINE & 2407 GARDEN CT N 052305906605 RICHARDS RENTON WA 98056 GIANINI KATHLEEN M 1311 N 26TH ST 052305902307 RENTON WA 98055 GRIESER WALTER 2423 GARDEN CT N 052305906308 RENTON WA 98056 GROVE JULIE K 2515 PARK PL N 229650014504 RENTON WA 98056 HAMMOND ROBERT 1313 N 26TH ST 229650012300 A+MILDRED M RENTON WA 98056 HEARTHSTONE HOMES LLC PO BOX 3023 164450049006 RENTONWA 98056 HEARTHSTONE HOMES LLC PO BOX 3023 164450050004 RENTONWA 98056 HEARTHSTONE HOMES LLC PO BOX 3023 164450051002 RENTONWA 98056 HOLMA BETTY M 1409 NORTH 24TH STREET 334450023505 RENTON WA 98056 H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1303 SEPA PID Info\DC-2 03-SEPA Owner List-Final.doc\DCtp HOPKINS RICHARD AND 2511 PARK PL N 229650014405 SUSAN TRUST RENTONWA 98056 HOWELL DENTON C & SHAWN 2613 MEADOW AV NORTH 229650010502 M RENTON WA 98056 JENSEN CHARLES 2621 MEADOW PL N 052305904501 RENTON WA 98056 JONES LEWIS HUGH+SALL Y A 1401 N 24TH ST 052305902505 RENTONWA 98056 LEE KEVIN & PRISCILLA 2420 GARDEN CT N 229650013407 RENTON WA 98056 LINCOLN DAVID M 1412 N 24TH ST 052305903701 RENTON WA 98056 MAO YU+MIN WU 1221 N 26TH ST 229650015105 RENTONWA 98056 MARINA LANDING C/O HSC REAL ESTATE INC 334450031508 PO BOX 19001 SEATTLE WA 98109 MATHESON JAMES K+CHERYL 2417 GARDEN CT N 052305906407 J RENTON WA 98056 MCDONALD PATRICK 1405 N 24TH ST 334450023604 RENTONWA 98056 MULLINAUX MICHAEL G 1415 N 24TH 334450023406 RENTON WA 98056 OLDS PETRUDE WILLIAM 1314 N 26TH ST 229650011500 JR+JEA RENTON WA 98056 PALMER GARY D+MARCIE M 2507 PARK PL NORTH 229650014009 RENTON WA 98056 PALMER GARY D+MARCIE M 2507 PARK PL N 229650014306 RENTON WA 98056 RADNICH ROBERT B 2501 MEADOW AV N 229650012904 RENTON WA 98056 REED TIMOTHY 1627 NE STANTON 229650013100 PORTLAND OR 97212 REED TIMOTHY M & PATRICIA 1627 NE STANTON RD 052305907702 M PORTLAND OR 97212 H:\File Sys\SWP -Surface Water ProjectslSWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\I303 SEPA PID InfolOC-3 03-SEPA Owner List-Final.doclOCtp REED TIMOTHY M+PATRICIA 1627 NE STANTON RD 052305906209 M PORTLAND OR 97212 RING JACK & DOROTHY 1830 DORAL CT 229650013605 PAHRUMP NV 89048 SCHEER ROBERT D+BUHRIG 1301 N 26TH ST 229650015006 AMYL RENTONWA 98056 SCHOFIELD JOHN M 2505 MEADOW AV N 229650012607 RENTONWA 98056 SCOTT JAMES B 1405 N 28TH ST 229650015501 RENTON WA 98055 SMITH DAVID M 1308 N 26TH 052305903800 RENTON WA 98056 SOBRATO DEVELOPMENT CO 10600 N DEANZA BL #200 229650020006 CUPERTINO CA 95014 STORK MICHAEL R+BARBARA 2219 MEADOW AV N 334450025005 J RENTONWA 98056 STORK MICHAEL RAY 2219 MEADOW AV N 052305902703 RENTON WA 98056 T AIWO JOSEPH A+BOTERO 2421 MEADOW AV N 229650013209 IRENE RENTON WA 98056 WAGNER RICHARD JORGENSEN ANNABELLE 052305906506 2411 GARDEN CT N RENTON WA 98056 WEG LLC PO BOX 2701 229650013308 RENTONWA 98056 YAO LIN XIN 2415 PARK PL N 229650013803 RENTONWA 98056 H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\I303 SEPA PID Info\DC-4 03-SEPA Owner List-Final.doc\DCtp Applicant Certification I, _....:::.J):::....-.=a..:..n:....!i~-c:...../r.....-_Ca=:....:::· :...!r....;r:.,..7V~ _____ , hereby certify that the above list(s) of adjacent property (Print Name) owners and their addresses were obtained from: Title Company Records -f 4 h t... J ' t.. King County Assessors Records -j-I'OI'1 C-I,6 (\'" n "''IT'' P~,,4 1"7,,/.1 Signed ..PJ~ Date ?-Zl-t?5 (Ap Icant) NOTARY fore me, a Not~C7ubliC, in a d for the State of Washington, . residing at --'c...:::..-"--=~~-:::::::......~~-=+--on th~ day of """'" 20 a ~ ~ , # p ;y __ .......... sA. . PL, 'II " ______ I .: ~"'f;.' ••••••••• '7~'( II, Signee ~-"-~ '':-...,,~ ~ .f A.,.«J ••• -;.':;/6ION ~-t.""~ ", (N:ry Public) I <;;-_'R..""-~ ,-'::l, 'P\I..,"'~ i .... cf orA % ... ~ ~ , .() ~ Ry ~~ ~ ~: -.-(/): ~ , • • til ~ (/'l :. ,oUsuG .: : ~;...\'. "o~~ ,-Y"7 :,\.'- ", /' • .t .. :··.g-19-0 ..... r~.:-'.'-0 ........ ~'V" __ III f: WAS'(\\ ~~- "\\\\\.""", .......... ****For City of Renton Use**** CERTIFICATION OF MAILING I, _________ ., hereby certify that notices of the proposed application were mailed to (City Employee) each listed property owner on _______ _ Signed ______________ _ Date: _________ _ NOTARY ATTEST: Subscribed and sworn before me, a Notary Public, in and for the State of Washington residing at on the day of ,20 __ " Signed _______________ _ H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1303 SEPA PIO Info\OC-5 03-SEPA Owner List-FinaLdoc\OCtp Jam and Smudge Free Printing Use Avery® TEMPLATE 5160® 334450029007 ABBEY VINCENT H D EXECUTOR 9005 21ST AVNW SEATTLE WA 98117 229650011005 BOEHME JOE 2607 MEADOW A V N RENTON WA 98055 052305904204 CARLSEN III JOHN A 17553 SE 133RD RENTON W A 98056 052305902406 ENNEKING RONALD+DONNA 1325 N 24TH ST RENTON W A 98056 052305905102 FOSS LAUNCH & TUG CO 660WEWONG SEATTLE WA 98119 229650018000 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 052305902307 GIANINI KATHLEEN M 1311 N 26TH ST RENTON WA 98055 229650012300 HAMMOND ROBERT A+MILDRED M 1313 N 26TH ST RENTON W A 98056 164450051002 HEARTHSTONE HOMES LLC PO BOX 3023 RENTON WA 98056 229650010502 HOWELL DENTON C & SHAWN M 2613 MEADOW AV NORTH RENTON WA 98056 -- 229650014207 www.avery.com 1-800-GO-AVERY ARNOLD GARY & RENEE 2520 PARK PL N RENTON W A 98056 052305903909 BRE PROPERTIES/TAX DEPT 44 MONTGOMERY 36TH FLR SAN FRANCISCO CA 94104 052305903305 CITY OF RENTON 1055 S GRADY WY RENTON WA 98055 229650011708 FELL LARRY E 1402 N 26TH ST RENTON W A 98056 229650016509 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 229650018505 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 052305906308 GRIESER W ALTER 2423 GARDEN CT N RENTON W A 98056 164450049006 HEARTHSTONE HOMES LLC POBOX 3023 RENTON W A 98056 334450023505 HOLMA BETTY M 1409 NORTH 24TH STREET RENTON W A 98056 052305904501 JENSEN CHARLES 2621 MEADOW PL N RENTON W A 98056 AH3JW-09-008-l wo)"AAaAe·MMM -- 229650012102 BANASKY PATRICIA 4310 NE 5TH CT #102 RENTON W A 98059 052305900301 BURLINGTON NORTHRN SANTA FE A TTN PROP TAX PO BOX 96189 FORT WORTH TX 76161 229650013001 COLLIER GEORGE F 2419 MEADOW AV N RENTON WA 98055 052305900400 FLEMING ROGER M 1404 N 24TH ST RENTON WA 98056 229650017002 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 052305906605 GAL VIN CATHERINE & RICHARDS 2407 GARDEN CT N RENTON W A 98056 229650014504 GROVE JULIE K 2515 PARK PL N RENTON WA 98056 164450050004 HEARTHSTONE HOMES LLC PO BOX 3023 RENTON W A 98056 229650014405 HOPKINS RICHARD AND SUSAN TRUST 2511 PARK PL N RENTON WA 98056 052305902505 JONES LEWIS HUGH+SALL Y A 1401 N 24TH ST RENTON W A 98056 @09l5 ~!Jeqe6 al zas!l!~n ap!deJ a6elp"s ~ ~a a6eJJnoq!~ue uo!ssaJdWI ", .. 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",,""~"., ,§) AVERY Jam and Smudge Free Printing Use Avery® TEMPLATE 5160® 229650013407 LEE KEVIN & PRISCILLA 2420 GARDEN CT N RENTON W A 98056 334450031508 MARINA LANDING C/O HSC REAL ESTATE INC PO BOX 19001 SEATTLE WA 98109 334450023406 MULLINAUX MICHAEL G 1415 N 24TH RENTON W A 98056 229650014306 PALMER GARY D+MARCIE M 2507 PARK PL N RENTON W A 98056 052305907702 REED TIMOTHY M & PATRICIA M 1627 NE STANTON RD PORTLAND OR 97212 229650015006 SCHEER ROBERT D+BUHRIG AMY L 130 I N 26TH ST RENTON W A 98056 052305903800 SMITH DAVID M 1308 N 26TH RENTON W A 98056 052305902703 STORK MICHAEL RAY 2219 MEADOW AVN RENTON W A 98056 229650013308 WEG LLC PO BOX 2701 RENTON W A 98056 -- 052305903701 LINCOLN DAVID M 1412 N 24TH ST RENTON W A 98056 052305906407 www.avery.com 1-800-GO-AVERY MATHESON JAMES K+CHERYL J 2417 GARDEN CTN RENTON W A 98056 229650011500 OLDS PETRU DE WILLIAM JR+JEA 1314 N 26TH ST RENTON W A 98056 229650012904 RADNICH ROBERT B 2501 MEADOW AVN RENTON W A 98056 052305906209 REED TIMOTHY M+P A TRICIA M 1627 NE STANTON RD PORTLAND OR 97212 229650012607 SCHOFIELD JOHN M 2505 MEADOW A V N RENTON W A 98056 229650020006 SOBRA TO DEVELOPMENT CO 10600 N DEANZA BL #200 CUPERTINO CA 95014 229650013209 T AIWO JOSEPH A+BOTERO IRENE 2421 MEADOW A V N RENTON W A 98056 229650013803 YAOLIN XIN 2415 PARK PL N RENTON W A 98056 AH3J\"-09-008-~ WO)·Al9I\e·MMM -- ~ AVERY® 5160® 229650015105 MAO YU+MIN WU 1221 N 26TH ST RENTON W A 98056 334450023604 MCDONALD PATRICK 1405 N 24TH ST RENTON W A 98056 229650014009 PALMER GARY D+MARCIE M 2507 PARK PL NORTH RENTON W A 98056 229650013100 REED TIMOTHY 1627 NE STANTON PORTLAND OR 97212 229650013605 RING JACK & DOROTHY 1830 DORAL CT PAHRUMP NV 89048 229650015501 SCOTT JAMES B 1405 N 28TH ST RENTON W A 98055 334450025005 STORK MICHAEL R+BARBARA J 2219 MEADOW AVN RENTON W A 98056 052305906506 WAGNER RICHARD JORGENSEN ANNABELLE 2411 GARDEN CT N RENTON W A 98056 ®09~S I!Jeqe6 al zas!I!ln ap!deJ a6el.p.,s ~ la a6eJJnoq!IUe uo!ssaJdwl ~ .. 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" AVERY c 334450029007 ABBEY VINCENT H D EXECUTOR 9005 21 ST A V NW SEATTLE WA 98117 229650011005 BOEHME JOE 2607 MEADOW A V N RENTON WA 98055 052305904204 CARLSEN III JOHN A 17553 SE 133RD RENTON W A 98056 052305902406 ENNEKING RONALD+DONNA 1325 N 24TH ST RENTON WA 98056 052305905102 FOSS LAUNCH & TUG CO 660WEWONG SEATTLE WA 98119 229650018000 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 052305902307 GIANINI KATHLEEN M 1311 N 26TH ST RENTON WA 98055 229650012300 HAMMOND ROBERT A+MILDRED M 1313 N 26TH ST RENTON WA 98056 164450051002 HEARTHSTONE HOMES LLC PO BOX 3023 RENTON WA 98056 229650010502 HOWELL DENTON C & SHAWN M 2613 MEADOW A V NORTH RENTON WA 98056 229650014207 ARNOLD GARY & RENEE 2520 PARK PL N RENTON W A 98056 052305903909 BRE PROPERTIES/TAX DEPT 44 MONTGOMERY 36TH FLR SAN FRANCISCO CA 94104 052305903305 CITY OF RENTON 1055 S GRADY WY RENTON W A 98055 229650011708 FELL LARRY E 1402 N 26TH ST RENTON W A 98056 229650016509 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 229650018505 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 052305906308 GRIESER W ALTER 2423 GARDEN CT N RENTON W A 98056 164450049006 HEARTHSTONE HOMES LLC PO BOX 3023 RENTON WA 98056 334450023505 HOLMA BETTY M 1409 NORTH 24TH STREET RENTON WA 98056 052305904501 JENSEN CHARLES 2621 MEADOW PL N RENTON W A 98056 229650012102 BANASKY PATRICIA 4310 NE 5TH CT # 102 RENTON W A 98059 052305900301 BURLINGTON NORTHRN SANTA FE ATTN PROP TAX PO BOX 96189 FORT WORTH TX 76161 229650013001 COLLIER GEORGE F 2419 MEADOW AVN RENTON W A 98055 052305900400 FLEMING ROGER M 1404 N 24TH ST RENTON W A 98056 229650017002 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND W A 98052 052305906605 GALVIN CATHERINE & RICHARDS 2407 GARDEN CT N RENTON W A 98056 229650014504 GROVE JULIE K 2515 PARK PL N RENTON WA 98056 164450050004 HEARTHSTONE HOMES LLC PO BOX 3023 RENTON W A 98056 229650014405 HOPKINS RICHARD AND SUSAN TRUST 2511 PARK PL N RENTON W A 98056 052305902505 JONES LEWIS HUGH+SALL Y A 1401 N 24TH ST RENTON W A 98056 'I: It" • ~.~ AliaA"" ... ~ .. \ , ' 1 '. 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I I .,: i~i~,;1 " ", 'JO! 4J 1~"''',"B8~8rittAnAchage rapide utllfs.~ii~160® 229650013407 LEE KEVIN & PRISCILLA 2420 GARDEN CT N RENTON W A 98056 334450031508 MARINA LANDING C/O HSC REAL ESTATE INC PO BOX 19001 SEATTLE WA 98109 334450023406 MULLINAUX MICHAEL G 1415 N 24TH RENTON W A 98056 229650014306 PALMER GARY D+MARCIE M 2507 PARK PL N RENTON W A 98056 052305907702 REED TIMOTHY M & PATRICIA M 1627 NE STANTON RD PORTLAND OR 97212 229650015006 SCHEER ROBERT D+BUHRIG AMY L 1301 N 26TH ST RENTON W A 98056 052305903800 SMITH DA VID M 1308 N 26TH RENTON W A 98056 052305902703 STORK MICHAEL RAY 2219 MEADOW AVN RENTON W A 98056 229650013308 WEG LLC PO BOX 2701 RENTON W A 98056 05230590370 I LINCOLN DAVID M 1412 N 24TH ST RENTON W A 98056 052305906407 MA THESON JAMES K +CHERYL J 2417 GARDEN CT N RENTON W A 98056 229650011500 OLDS PETRUDE WILLIAM JR+ JEA 13 14 N 26TH ST RENTON WA 98056 229650012904 RADNICH ROBERT B 2501 MEADOW A V N RENTON WA 98056 052305906209 REED TIMOTHY M+PATRICIA M 1627 NE STANTON RD PORTLAND OR 97212 229650012607 SCHOFIELD JOHN M 2505 MEADOW A V N RENTON W A 98056 229650020006 SOBRA TO DEVELOPMENT CO 10600 N DEANZA BL #200 CUPERTINO CA 95014 229650013209 T AIWO JOSEPH A+BOTERO IRENE 2421 MEADOW AVN RENTON W A 98056 229650013803 YAOLIN XIN 2415 PARK PL N RENTON W A 98056 229650015105 MAO YU+MIN WU 1221 N 26TH ST RENTON W A 98056 334450023604 MCDONALD PATRICK 1405 N 24TH ST RENTON W A 98056 229650014009 PALMER GARY D+MARCIE M 2507 PARK PL NORTH RENTON W A 98056 229650013100 REED TIMOTHY 1627 NE STANTON PORTLAND OR 97212 229650013605 RING JACK & DOROTHY 1830 DORAL CT PAHRUMP NV 89048 229650015501 SCOTT JAMES B 1405 N 28TH ST RENTON W A 98055 334450025005 STORK MICHAEL R+BARBARA J 2219 MEADOW AVN RENTON W A 98056 052305906506 WAGNER RICHARD JORGENSEN ANNABELLE 2411 GARDEN CT N RENTON W A 98056 • A1.I31\'W ~ ... . ' , A1.I31\'W ~. , , , ~ ~ ci. ~ ~C'1~: '-C Z :'"V c..."? "~ "j • 1301 N 26th St 2515 Park PL N 20' 40' .... ..--.. IIY 1""1_ ~7 ~j: : 2417 I I : I Garden CT N : 1,0' PNT __________ III ....... ;R CITY OF --RENTON I .:::. I ::r..:.=. ~ PIonnlng/8uldlng/Pub Warb o.pt. N 26TH ST I PARK PL N STORM SYSTEM PROJECT ~ 'l' t)i ~ en 1301 N 26th St 2515 Park PL N .., .. NO. """"'" ......... - 2417 Garden CT N .. - I .~':. I :.r..:.:. ......-.. ® ~ CITY OF RENTON ~-..... N 26TH ST I PARK PL N STORM SYSTEM PROJECT CITY OF RENTON PLANNING I BUILDING I PUBLIC WORKS MEMORANDUM Date: September 13, 2005 To: City Clerk's Office From: Stacy M. Tucker Subject: Land Use File Closeout Please complete the following information to facilitate project closeout and indexing by the City Clerk's Office. Project Name: N 26th St/Park PI N Storm System Project LUA (file) Number: LUA-05-080. ECF. CAR Cross-References: AKA's: Project Manager: Valerie Kinast Acceptance Date: July 15, 2005 Applicant: Daniel Carey, City of Renton Surface Water Utility Owner: City of Renton Contact: Daniel Carey PID Number: City R-O-W ERC Approval Date: August 9, 2005 ERC Appeal Date: August 29, 2005 Administrative Approval: CAR approval -August 10, 2005 Appeal Period Ends: Public Hearing Date: Date Appealed to HEX: By Whom: HEX Decision: Date: Date Appealed to Council: By Whom: Council Decision: Date: Mylar Recording Number: Project Description: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and ex;emption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. Location: Along Park PI N, south of N 26th St, & west of Park PI N at 2415 Park PI N Comments: Marleen Mandt 1408 N 26th Street Renton, WA 98056 tel: 425-271-1167 (party of record) Updated: 08/10/05 PARTIES OF RECORD N 26TH ST JPARK PL STORM SYSTEM LUA05-080, ECF, CAR Daniel Carey City of Renton -Surface Water Utility , (owner / applicant) (Page 1 of 1) Belle Vista Apts Proposed Storm Line Neighborhood Detail Map N 26th ST I PARK PL N STORM SYSTEM PROJECT City of Renton Surface Water Utility D. Carey 6/05 STATE OF WASHINGTON, COUNTY OF KING } AFFIDA VIT OF PUBLICATION PUBLIC NOTICE Tom Meagher, being first duly sworn on oath that he is the Legal Advertising Representative of the King County Journal a daily newspaper, which newspaper is a legal newspaper of general circulation and is now and has been for more than six months prior to the date of publication hereinafter referred to, published in the English language continuously as a daily newspaper in King County, Washington. The King County Journal has been approved as a Legal Newspaper by order of the Superior Court of the State of Washington for King County. The notice in the exact form annexed was published in regular issues of the King County Journal (and not in supplement form) which was regularly distributed to its subscribers during the below stated period. The annexed notice, a Public Notice was published on August 15,2005. The full amount of the fee charged for said foregoing publication is the sum of $98.00. ~yL Tom Meagher Legal Advertising Representative, King County Journal Subscribed and sworn to me this 15th day of August, 2005. ~ ~ Jody L. Barton \\"""'111/ ~\\\ L. B~ I,~ '!t.,\O S> ~ •• ' •• " ••.• !Y./>. ~ ~ O.l'··~OVll?)-•••• .o ~ ~ "'). ."$. .. ~ I ~ : ~: EXp. : = = ~ f 04/28/2009 i ~ : -.... ~ .... ~~\ ./ ~ ~~ ..... ~!;~~ #' ~ Op 'IrAS\'\.~~,,~ ;"11 ry n. \\\ Iflr·,u,,' Notary Public for the State of Washington, Residing in Auburn, Washington PO Number: Cost of publishing this notice includes an affidavit surcharge. NOTICE OF ENVIRONMENTAL DETERMINATION ENVIRONMENTAL REVIEW COMMITTEE RENTON, WASHINGTON The Environmental Review Com- mittee has issued a Determination of Non-Significance for the following pro- ject under the authority of the Renton Municipal Code. N 26th St I Park PI N Storm System Project LUA05-0S0, ECF, CAR Location: Along Park Place N, south of N 26th Street, and west of Park Place N at 2415 Park Place N. The City of Renton Surface Water Utility is requesting Environmen- tal (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line in Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 inches in diameter and add eight to twelve new catch basins. The pro- ject is intended to improve drain- age by replacing the current sys- tem that discharges water at the top of a steep slope causing exces- sive water flow down the hillside. Appeals of the environmental determination must be filed in writing on or before 5:00 PM on August 29, 2005. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Exam- iner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-S-no.B. Additional information regard- ing the appeal process may be obtained from the Renton City Clerk's Office. (425) 430-6510. Published in the King County Journal August 15, 2005. #S49147 City of Re ... on Department of Planning / Building / Public ~.vrks ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: COMMENTS DUE: JULY 29, 2005 APPLICATION NO: LUA05-080, ECF, CAR DATE CIRCULATED: JULY 1"~"""'-::::: '"'. ) APPLICANT: City of Renton Surface Water Utility PROJECT MANAGE~erie Kinast ~ PROJECT TITLE: N 26th StiPark PI N Storm System Project PLAN REVIEW: Mik~h lO': SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public SeNices Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional information is needed to properly assess this proposal. C~ ~'zJ-Of Signature of Director or Authorized Representative Date CITY. RENTON Kathy Keolker-Wheeler, Mayor August 30, 2005 Daniel Carey City of Renton -Surface Water Utility 1055 S Grady Way Renton, WA 98055 SUBJECT: N 26th St/Park PI N Storm System Project LUA05-080, ECF, CAR Dear Mr. Carey: Planning/BuildinglPublic Works Department Gregg Zimmerman P.E., Administrator This letter is to inform you that the appeal period has ended for the Environmental Review Committee's (ERC) Determination of Non-Significance for the above-referenced project. No appeals were filed on the ERC determination. This decision is final and application for the appropriately required permits may proceed. If you have any questions, please feel free to contact me at (425) 430-7289. For the Environmental Review Committee, Valerie Kinast Associate Planner cc: Marleen Mandt / Party of Record -------lO-S-S-s-ou-t-h-O-ra-d-y-W-a-y--R-e-n-to-n-,-W-as-h-in-g-to-n-9-S-0-SS-------~ ® This paper contains 50% recycled material, 30% post consumer AHEAD OF THE CURVE ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE (DNS) POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: N 26th Stl Pori< PI N Stonn System Prolect PROJECT NUMBER: LUA05-080, ECF, CAR LOCATION: Along Pork PI N, south 01 N 26th St, ond w.st of Perk PI N ot24'5 Pork PI N DESCRIPTION: The City 01 Renton Surface Water Utility I, reque'tlng Environmental (SEPA) Review of a propos.' to replace up to 750 IIn •• r , .. t o' an Ixlstlng stann sewer line In Park Place North. louth of North 26th S!tr •• t, and on private property extending we.t of Park Piaci North within ••• ement .. The replacement pipe would be 12 Inches In diameter and add eight to twelve new catch ba.lnt. The project 'I Intended to Improve drainage by replacing the current tYltem that dltchargel water at the top of I steep 'lope causing excessive water flow down the hillside. the city of renton environmental review committee (erc) ha. determined that the proposed action does not have a significant adverse Impact on the environment. Appeals of the environmental determination must be fned In writing on or before 5:00 PM on August 29, 2005. Appeals must be flied In writing together with the required $75.00 application fee with: Hearing Examiner, City of ".nton, 1055 South Grady Way. Renton, WA 98055. Appeals to the Examiner are governed by City of Renton MuniCipal Code Section 4--&-110.8. Addltlonallnfonnatlon rtlgardlng the appeal process may be obtained from the Renton City Clerl<'s Offlce, (425) 430-65,0. IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING WILL BE SET AND ALL PARTIES NOTIFIED. Proposed Storm Line FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON. DEVELOPMENT SERVICES DIVISION AT (425) 430-7200. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION Please Include the project NUMBER when calling for proper file Identification. CERTIFICA TION A ~~~T+~b~bed and swo~~efore me, a Notw ~.Ubl~liJ.f~;· and ~0.0-he State oYWashington re~im £2, ---.c"'-'-__ --L_-..:.._, on the . )0 day of f1l/~ J \ . ~a~t.:s:...~ NOTARY PUBLIC SIGNATURE: CITY OF RENTON CURRENT PLANNING DIVISION AFFIDAVIT OF SERVICE BY MAILING On the 12th day of August, 2005, I deposited in the mails of the United States, a sealed envelope containing ERC Determination documents. This information was sent to: Agencies See Attached Daniel Carey, City of Renton Surface Water Utility Applicant/Contact Marleen Mandt Party of Record (Signature of sender>;,~ ~ STATE OF WASHINGTON ) ) SS COUNTY OF KING ) I certify that I know or have satisfactory evidence that Stacy Tucker signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument. ., ( , ~), ? 0/30/0 ) UaMG~ , Dated: c; -------Notary Public in and for the Sate of Washington Notary (Print): __ ---','-iJzA __ Yl_CC_l //U1r __ !2_<--_~_, __ ' _/h_~ __ ' ______ _ My appointment expires: \~. ;\Ll:~~'\\ ....••... 'Af"'k, 'I ~N __ 26_t_h/_p_a_r_k_p_I_N_S_t_o_rm __ s_ys_t_e_m_p_r_o_je_c_t ________________ -+~~~~~~~\ LUA05-080, ECF, CAR .: ~ ~------------------------------------------~~~~~~~. / I ~'. r... ... ~~ I, ~~.'!-19-()~ .. · ~C5 . 1,'1::;:-••• •• ••• .•• _\0 ". Of:w,'S~',\, -', template -affidavit of service by mailing Dept. of Ecology * Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 WSDOT Northwest Region" Attn: Ramin Pazooki King Area Dev. Serv., MS-240 PO Box 330310 Seattle, WA 98133-9710 US Army Corp. of Engineers" Seattle District Office Attn: SEPA Reviewer PO Box C-3755 Seattle, WA 98124 Jamey Taylor" Depart. of Natural Resources PO Box 47015 Olympia, WA 98504-7015 KC Dev. & Environmental Servo Attn: SEPA Section 900 Oakesdale Ave. SW Renton, WA 98055-1219 Metro Transit Senior Environmental Planner Gary Kriedt AGENCY (DOE) LETTER MAILING (ERe DETERMINATIONS) WDFW -Stewart Reinbold" Muckleshoot Indian Tribe Fisheries Dept. " c/o Department of Ecology Attn: Karen Walter or SEPA Reviewer 3190 160th Ave SE 39015 -172nd Avenue SE Bellevue, WA 98008 Auburn, WA 98092 Duwamish Tribal Office" Muckleshoot Cultural Resources Program" 4717 W Marginal Way SW Attn: Ms Melissa Calvert Seattle, WA 98106-1514 39015 172nd Avenue SE Auburn, WA 98092-9763 KC Wastewater Treatment Division * Office of Archaeology & Historic Environmental Planning Supervisor Preservation" Ms. Shirley Marroquin Attn: Stephanie Kramer 201 S. Jackson ST, MS KSC-NR-050 PO Box 48343 Seattle, WA 98104-3855 Olympia, WA 98504-8343 City of Newcastle City of Kent Attn: Mr. Micheal E. Nicholson Attn: Mr. Fred Satterstrom, AICP Director of Community Development Acting Community Dev. Director 13020 SE 72nd Place 220 Fourth Avenue South Newcastle, WA 98059 Kent, WA 98032-5895 Puget Sound Energy City of Tukwila Municipal Liason Manager Steve Lancaster, Responsible Official Joe Jainga 6300 Southcenter Blvd. 201 South Jackson Street KSC-TR-0431 PO Box 90868, MS: XRD-01W Tukwila, WA 98188 Seattle, WA 98104-3856 Bellevue, WA 98009-0868 Seattle Public Utilities Real Estate Services Title Examiner 700 Fifth Avenue, Suite 4900 PO Box 34018 Seattle, WA 98124-4018 Note: If the Notice of Application states that it is an "Optional DNS", the marked agencies and cities will need to be sent a copy of the checklist, PMT's, and the notice of application. " Also note, do not mail Jamey Taylor any of the notices she gets hers from the web. Only send her the ERC Determination paperwork. template -affidavit of service by mailing ENVIRONMENTAL DETERMINATION ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE (DNS) POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION PROJECT NAME: N 26th St I Park PI N Storm System Project PROJECT NUMBER: LUA05-080, ECF, CAR LOCATION: Along Park PI N, south of N 26th St, and west of Park PI Nat 2415 Park PI N DESCRIPTION: The City of Renton Surface Water Utility Is requesting Environmental (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line In Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 Inches In diameter and add eight to twelve new catch basins. The project Is Intended to Improve drainage by replacing the current system that discharges water at the top of a steep slope causing excessive water flow down the hillside. the city of renton environmental review commlHee (erc) has determined that the proposed action does not have a significant adverse impact on the environment. Appeals of the environmental determination must be flied in writing on or before 5:00 PM on August 29, 2005. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11 O.B. Additional Information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING WILL BE SET AND ALL PARTIES NOTIFIED. Belle Vista Apts Proposed Storm Line FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON, DEVELOPMENT SERVICES DIVISION AT (425) 430-7200. DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION Please Include the project NUMBER when calling for proper file Identification. ~r-t Kathy Keolker-Wheeler, Mayor August 12, 2005 Daniel Carey City of Renton -Surface Water Utility 1055 S Grady Way Renton, WA 98055 SUBJECT: Dear Mr. Carey: N 26th St I Park PI N Storm System Project LUA-05-080, ECF, CAR CITY. RENTON PlanningIBuildinglPublic Works Department Gregg Zimmerman P.E., Administrator This letter is written on behalf of the Environmental Review Committee (ERG) and is to inform you that they have completed their review of the environmental impacts of the above-referenced project. The Committee, on August 9, 2005, decided that your project will be issued a Determination of Non- Significance. The City of Renton ERC has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21 C.030(2)(c). This decision was made by the ERC under the authority of Section 4-6-6, Renton Municipal Code, after review of a completed environmental checklist and other information, on file with the lead agency. This information is available to the public on request. Appeals of the environmental determination must be filed in writing on or before 5:00 PM on August 29, 2005. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-11 O.B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. If the Environmental Determination is appealed, a public hearing date will be set and all parties notified. If you have any questions or desire clarification of the above, please call me at (425) 430-7289. For the Environmental Review Committee, Valerie Kinast Associate Planner cc: Marleen Mandt I Party of Record ------l-O-SS-s-o-u-th-a-r-ad-y-W,-a-y-.-R-e-nt-o-n,-w,-a-sh-i-ng-t-on-9-S0-S-S-------~ * This paper contains 50% recycled material, 30% post consumer AHEAD OF THE CURVE Kathy Keolker-Wheeler, Mayor August 12, 2005 Washington State Department of Ecology Environmental Review Section PO Box 47703 Olympia, WA 98504-7703 CITY ,--,F RENTON PlanningIBuildinglPublic Works Department Gregg Zimmerman P.E., Administrator Subject: Environmental Determinations Transmitted herewith is a copy of the Environmental Determination for the following project reviewed by the Environmental Review Committee (ERG) on August 9,2005: DETERMINATION OF NON-SIGNIFICANCE PROJECT NAME: PROJECT NUMBER: LOCATION: DESCRIPTION: N 26th St I Park PI N Storm System Project LUA05-080, ECF, CAR Along Park Place N, south of N 26th Street & west of Park Place N at 2415 Park Place N The City of Renton Surface Water Utility is requesting Environmental (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line in Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 inches in diameter and add eight to twelve new catch basins. The project is intended to improve drainage by replacing the current syst~m that discharges water at the top of a steep slope causing excessive water flow down the hillside. Appeals of the environmental determination must be filed in writing on or before 5:00 PM on August 29, 2005. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code SeCtion 4-8-110.B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. If you have questions, please call me at (425) 430-7289. For the Environmental Review Committee, Valerie Kinast Associate Planner cc: King County Wastewater Treatment Division WDFW, Stewart Reinbold David F. Dietzman, Department of Natural Resources WSDOT, Northwest Region Duwamish Tribal Office Karen Walter, Fisheries, Muckleshoot Indian Tribe (Ordinance) Melissa Calvert, Muckleshoot Cultural Resources Program US Army Corp. of Engineers -lE=t,,"W"e*IO~St"tUlN'!:.-te_p_h_a_ni_e_K_ra_m_e_r_' Offi_,_ce_of_A_r_ch_a_e_0_10_9y_&_H_is_to_n_'c_p_r_es_e_rv_a_ti_on ________ ~R· E N TON 1055 South Grady Way -Renton, Washington 98055 * This paper contains 50% recycled material, 30% post consumer AHEAD OF THE CURVE CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE-MITIGATED ADVISORY NOTES APPLICATION NO(S): LUA05-080, ECF, CAR APPLICANT: City of Renton -Surface Water Utility PROJECT NAME: N 26th St / Park PI N Storm System Project DESCRIPTION OF PROPOSAL: The City of Renton Surface Water Utility is requesting Environmental (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line in Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 inches in diameter and add eight to twelve new catch basins. The project is intended to improve drainage by replacing the current system that discharges water at the top of a steep slope causing excessive water flow down the hillside. LOCATION OF PROPOSAL: LEAD AGENCY: Along Park Place N, south of N 26th Street & west of Park Place N at 2415 Park Place N The City of Renton Department of Planning/Building/Public Works Development Planning Section Advisory Notes to Applicant: The following notes are supplemental information provided in conjunction with the environmental determination. Because these notes are provided as information only, they are not subject to the appeal process for environmental determinations. Planning 1. Some of the mitigation measures included in this report are proposed by the applicant in the project application documents. It is the responsibility of the applicant to ensure that all mitigation is implemented as proposed, and that any additional information requiring review is submitted and approved prior to starting work. 2. The project must comply with requirements and conditions of approval as set forth in the Exemption from Tree Cutting and Land Clearing and the Waiver from Steep Slope Critical Areas Regulations granted for the project. 1 . Maintain emergency access at all times. CITY OF RENTON DETERMINATION OF NON-SIGNIFICANCE APPLICATION NUMBER: LUA05-080, ECF, CAR APPLICANT: City of Renton -Surface Water Utility PROJECT NAME: N 26th St / Park PI N Storm System Project DESCRIPTION OF PROPOSAL: The City of Renton Surface Water Utility is requesting Environmental (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line in Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 inches in diameter and add eight to twelve new catch basins. The project is intended to improve drainage by replacing the current system that discharges water at the top of a steep slope causing excessive water flow down the hillside. LOCATION OF PROPOSAL: LEAD AGENCY: Along Park Place N, south of N 26th Street, and west of Park Place N at 2415 Park Place N City of Renton Department of Planning/Building/Public Works Development Planning Section This Determination of Non-Significance is issued under WAC 197-11-340. Because other agencies of jurisdiction may be involved, the lead agency will not act on this proposal for fourteen (14) days. Appeals of the environmental determination must be filed in writing on or before S:OO PM on August 29, 200S. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110.B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. PUBLICATION DATE: DATE OF DECISION: SIGNATURES: Dennis Culp, Administrator Community Services Department August1S,200S August 9,2005 DATE DATE: LAND USE FILE NO.: PROJECT NAME: OWNER/APPLICANT: PROJECT MANAGER: PROJECT LOCATION: August9,2005 LUA-05-080, ECF, CAR N 26th St / Park PI N Storm System Project City of Renton -Surface Water Utility Valerie Kinast, Associate Planner Within the right-of-way on Park PI N, south of N 26th St, and in private easements, west of Park PI N at 2415 Park PIN Parcels 0523059064, 0523059065, 2296500138, 2296500200 PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diameter and the proposal would add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and a waiver from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. EXEMPTION JUSTIFICATION: Pursuant to RMC section 4-4-130C.3. of the Tree Cutting and Land Clearing Regulations an exemption to remove trees on a steep slope is granted for the following reason(s): X Maintenance Activities/Essential Tree Removal for Public or Private Utilities, Roads and Public Parks. DECISION: The project is exempt from routine vegetation management permit requirements provided it is consistent with the following findings pursuant to RMC section 4-3-050.CA.d: 1. The land clearing and tree cutting will not create or significantly contribute to landslides, accelerated soil creep, settlement and subsidence or hazards associated with strong ground motion and soil liquifaction. 2. The land clearing and tree cutting will not create or significantly contribute to flooding, erosion, increased turbidity, siltation, or other forms of pollution in a watercourse. E:\PROJECTS\05-080.valerie\Exemption from Tree Cutting Regulations.doc Page 1 of2 DATE: LAND USE FILE NO.: PROJECT NAME: OWNER/APPLICANT: PROJECT MANAGER: PROJECT LOCATION: August9,2005 LUA-05-080, ECF, CAR N 26th St / Park PI N Storm System Project City of Renton -Surface Water Utility Valerie Kinast, Associate Planner Within the right-of-way on Park PI N, south of N 26th St, and in private easements, west of Park PI N at 2415 Park PIN Parcels 0523059064, 0523059065, 2296500138, 2296500200 PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diameter and the proposal would add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and a waiver from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. EXEMPTION JUSTIFICATION: Pursuant to RMC section 4-4-130C.3. of the Tree Cutting and Land Clearing Regulations an exemption to remove trees on a steep slope is granted for the following reason(s): X Maintenance Activities/Essential Tree Removal for Public or Private Utilities, Roads and Public Parks. DECISION: The project is exempt from routine vegetation management permit requirements provided it is consistent with the following findings pursuant to RMC section 4-3-050.C.4.d: 1. The land clearing and tree cutting will not create or significantly contribute to landslides, accelerated soil creep, settlement and subsidence or hazards associated with strong ground motion and soil liquifaction. 2. The land clearing and tree cutting will not create or significantly contribute to flooding, erosion, increased turbidity, siltation, or other forms of pollution in a watercourse. E:\PROJECTS\05-080.valerie\Exemption from Tree Cutting Regulations.doc Page 1 of2 3. Land clearing and tree cutting will be conducted to maintain or provide visual screening and buffering between land uses of differing intensity, consistent with the applicable landscaping and setback provisions of the Renton Municipal Code. 4. Land clearing and tree cutting shall be conducted so as to expose the smallest practical area of soil to erosion for the least possible time, consistent with an approved build-out schedule and including any necessary erosion control measures. 5. Land clearing and tree cutting shall be consistent with subsetion D2 of this section, Restrictions for Critical Areas, and RMC 4-3-050, Critical Areas Regulations. CONDITIONS OF APPROVAL: 1. Trees shall be maintained to the maximum extent feasible. 2. Trees that are removed must be replaced with native species if doing so would not interfere with the utilities system. Replanting of trees must not include the following tree species: a. All Populus species, including cottonwood. b. All Alnus species, including red alder, black alder and white alder. c. Salix species, including weeping willow unless along a stream bank and away from paved areas. d. All Platanus species, including London plane tree and American sycamore/buttonwood. 3. Trees that are retained must be protected during construction according to the standards in RMC 4-4-130H.8. SIGNATURES: date EXPIRATION: Five (5) years from the date of approval (signature date). E:\PROJECTS\05-080.Yalerie\Exemption from Tree Cutting Regulations.doc Page 2 of2 DATE: LAND USE FILE NO.: PROJECT NAME: OWNER/APPLICANT: PROJECT MANAGER: PROJECT LOCATION: PROPOSAL: CRITICAL AREA: August 9,2005 LUA-05-080, ECF, CAR N 26th St / Park PI N Storm System Project City of Renton -Surface Water Utility Valerie Kinast, Associate Planner Within the right-of-way on Park Place North, south of North 26th Street, and in private easements west of Park Place North at 2415 Park Place North Parcels 0523059064, 0523059065, 2296500138, 2296500200 City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diameter, and the proposal would add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive storm water runoff down a steep slope. The project requires environmental reVeliw and a waiver from critical areas regulations to construdln a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. Protected Slopes WAIVER JUSTIFICATION: RMC Section 4-3-050.J.5.d. of the Critical Areas Regulations states: "Exceptions through Waiver: Exceptions to the prohibition (of construction on protected slopes) may be granted for installation of public utilities which are needed to protect slope stability ... " The project involves the installation of public utilities that are needed to protect slope stability. E:\PROJECTS\05-080.Valerie\Waiver from Steep Slope Regulations.doc Page 1 of2 DATE: LAND USE FILE NO.: PROJECT NAME: OWNER/APPLICANT: PROJECT MANAGER: PROJECT LOCATION: PROPOSAL: CRITICAL AREA: August 10,2005 LUA-05-080, ECF, CAR N 26th St / Park PI N Storm System Project City of Renton -Surface Water Utility Valerie Kinast, Associate Planner Within the right-of-way on Park Place North, south of North 26th Street, and in private easements west of Park Place North at 2415 Park Place North Parcels 0523059064, 0523059065, 2296500138, 2296500200 City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diameter, and the proposal would add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive storm water runoff down a steep slope. The project requires environmental review and a waiver from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. Protected Slopes WAIVER JUSTIFICATION: RMC Section 4-3-050.J.5.d. of the Critical Areas Regulations states: "Exceptions through Waiver: Exceptions to the prohibition (of construction on protected slopes) may be granted for installation of public utilities which are needed to protect slope stability ... " The project involves the installation of public utilities that are needed to protect slope stability. E:\PROJECTS\05-080.valerie\Waiver from Steep Slope Regulations.doc Page 1 of 2 The project demonstrates compliance with the following provisions as set forth in RMC 4-3- 050.J.5.d.: 1. The utility or road improvement is consistent with the Renton Comprehensive Plan, adopted Utilities Plans, and the Transportation Improvement Program where applicable. 2. Alternative locations have been determined to be economically or functionally infeasible. 3. A Geotechnical evaluation indicates that the proposal will not increase the risk of occurrence of a geological hazard, and measures are identified to eliminate or reduce risks. 4. The plan for the improvement is based on consideration of the best available science as described in WAC 365-195-905; or where there is an absence of valid scientific information, the steps in RMC 4-9-250F are followed. DECISION: A waiver is hereby granted to allow the replacement of the storm water system as described above. CONDITIONS OF APPROVAL: 1. Erosion control shall comply with the Washington State Department of Ecology 2001 Stormwater Manual. 2. Revegetation with native plants is required in areas of exposed soil. SIGNATURES: EXPIRATION: Five (5) years from the date of approval (signature date). E:\PROJECTS\05-080Valerie\Waiver from Steep Slope Regulations.doc Page 2 of2 date ENVIRONMENTAL REVIEW COMMITTEE MEETING NOTICE August 9, 2005 To: Gregg Zimmerman, Planning/Building/Public Works Administrator Dennis Culp, Community Services Administrator Lee Wheeler, Fire Chief From: Jennifer Henning, Development Planning Meeting Date: Tuesday, August 9, 2005 Time: 9:00AM Location: Sixth Floor Conference Room #620 Agenda listed below. N 2({h Sf / Park PI N Sform System Project (Kinast) LUA05-080, ECF, CAR The City of Renton Surface Water Utility is requesting Environmental (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line in Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 inches in diameter and add eight to twelve new catch basins. The project is intended to improve drainage by replacing the current system that discharges water at the top of a steep slope causing excessive water flow down the hillside. cc: K. Keolker-Wheeler, Mayor J. Covington, Chief Administrative Officer A. Pietsch, EDNSP Administrator ® B. Wolters, EDNSP Director ® J. Gray, Fire Prevention N. Watts, P/B/PW Development Services Director ® F. Kaufman, Hearing Examiner S. Engler, Fire Prevention ® J. Medzegian, Council S. Meyer, P/B/PW Transportation Systems Director R. Lind, Economic Development L. Warren, City Attorney ® STAFF REPORT City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL REVIEW COMMITTEE A. BACKGROUND ERC MEETING DATE Project Name: Owner/Applicant: Contact: File Number: Project Description: Project Location: Site Area: RECOMMENDA TlON: Project Location Map August9,2005 N 26th St I Park PI N Storm System Project City of Renton -Surface Water Utility Daniel Carey, Project Manager, Surface Water Utilities LUA-05-080, ECF, CAR Project Manager: Valerie Kinast The City of Renton Surface Water Utility is requesting Environmental (SEPA) Review of a proposal to replace up to 750 linear feet of an existing storm sewer line in Park Place North, south of North 26th Street, and on private property extending west of Park Place North within easements. The replacement pipe would be 12 inches in diameter and add eight to twelve new catch basins. The project is intended to improve drainage by replacing the current system that discharges water at the top of a steep slope causing excessive water flow down the hillside. Continued on next page Along Park Place North, south of North 26th Street, and west of Park Place North at 2415 Park Place North Approximately 2160 square feet Staff recommends that the Environmental Review Committee Issue a Determination of Non-Significance (DNS). Belle Vista Apts proposed Storm Line ERe Report.doc City of Renton PIBIPW Department STORM SYSTEM PROJECT -N 26TH S REPORT OF AUGUST 9, 2005 'ARKPLN Envirorr--ntal Review Committee Staff Report LUA-05-0BO, ECF, CAR Page 20'4 Project description continued: The storm system replacement would run south along Park Place North in the public right-of-way starting at the intersection of N 26th Street and Park Place North or 150 feet south of the intersection. At the south end of Park Place North the system would continue south approximately 190 linear feet on private property in existing and new easements then turn west and extend downhill 210 linear feet to connect to the existing storm system in the Bella Vista apartment complex. The majority of the system would consist of new 12 inch pipes placed in trenches three to eight feet under ground. 300 to 450 cubic yards of soil may be placed as trench backfill for the new stormwater lines. Flexible piping would be used along the sloping portion of the project. For 90 linear feet, where the slope is approximately 60 per cent, the flexible pipe would be placed above ground where it would be guided around trees and other obstructions. A four to six foot wide area would be cleared of small trees and shrubs for placement of the 90-foot length of aboveground pipe. Grass and shrubs would also be cleared at the top of the slope in a 20-foot by 40-foot area for installation of a new manhole and 40 feet of buried pipe. The portions of the storm system in Park Place North would be patched with asphalt and affected driveways would be repaired with matching materials. Landscaped areas of 2415 and 2507 Park Place North and the Bella Vista Apartments would be re-Iandscaped. It is proposed to replant grass in areas at the top of and along the slope that would be cleared of grass, shrubs and small trees for the project. The site is zoned Residential-8 (R-8) dwelling units per acre zone and Residential Multi-Family (RMF). The proposal requires environmental review, a waiver from Critical Areas Regulations and an exemption from Tree Cutting and Land Clearing Regulations in order to replace the pipeline on a steep slope and remove vegetation. B. RECOMMENDATION Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials make the following Environmental Determination: DETERMINA TION OF XX NON-SIGNIFICANCE XX Issue DNS with 14 da A eal Period. Issue DNS with 15 day Comment Period with Concurrent 14 day Appeal Period. C. MITIGA TION MEASURES No mitigation measures are recommended. Advisory Notes to Applicant: DETERMINATION OF NON -SIGNIFICANCE -MITIGA TED. Issue DNS-M with 14 da A eal Period. Issue DNS-M with 15 day Comment Period with Concurrent 14 day Appeal Period. The following notes are supplemental information provided in conjunction with the environmental determination. Because these notes are provided as information only, they are not subject to the appeal process for environmental determinations. Planning 1. Some of the mitigation measures included in this report are proposed by the applicant in the project application documents. It is the responsibility of the applicant to ensure that all mitigation is implemented as proposed, and that any additional information requiring review is submitted and approved prior to starting work. 2. The project must comply with requirements and conditions of approval as set forth in the Exemption from Tree Cutting and Land Clearing and the Waiver from Steep Slope Critical Areas Regulations granted for the project. Fire 1. Maintain emergency access at all times. ERC Report.doc City of Renton PIB/PW Department STORM SYSTEM PROJECT -N 26TH S REPORT OF AUGUST 9, 2005 'ARKPLN D. ENVIRONMENTAL IMPACTS Enviror--ntal Review Committee Staff Report LUA-05-0BO, ECF, CAR Page 30(4 In compliance with RCW 43.21 C. 240, the following project environmental review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. 1. Earth Impacts: The area of construction consists of paved areas and vegetated hillside. The topography of the area ranges from slightly sloping to steep slopes. The steepest section is approximately 71 %. The soils in the area include: Indianola loam fine sand (InC) and Alderwood gravelly sandy loam (AgO). Because of the presence of Protected Slopes (slopes over 40%), Landslide Areas (25% to 40% slopes), and Erosion Hazard Areas, the site is subject to the City of Renton's Critical Areas Regulations (RMC 4-3-050) and the project would require a Critical Areas Exemption. The project would involve trenching in existing asphalt streets and on the moderately sloping segment of the hillside in easements on private property. Above ground pipe would be laid over the area of the site with protected slopes (over 40%). 300 to 450 cubic yards of soil would potentially be placed as trench backfill for the new stormwater lines. After construction all trenched areas in the right-of-way would be restored with asphalt. Grass and shrubs would be cleared in a 20-foot by 40-foot area where slopes are moderate for installation of a new manhole and 40 feet of buried pipe. Small trees and shrubs would be removed in a 60-foot by 6-foot strip to enable placement of aboveground, flexible pipe on the protected slope. One six-inch diameter fir tree would be removed at the bottom of the slope. The applicant proposes reseeding all disturbed areas with grass for erosion protection. All minor erosion that could occur during construction would be mitigated using typical erosion control methods described in the King County Surface Water Design Manual, including filter fabric fences and catch basin inlet protection. The project must comply with requirements and conditions of approval relating to erosion control and revegetation as set forth in the Exemption from Tree Cutting and Land Clearing and the Waiver from Steep Slope Critical Areas Regulations granted for the project. Mitigation Measures: No further mitigation is required. Policy Nexus: N/A. 2. Water (Stormwater) Impacts: The current storm water system discharges water over the hillside potentially eroding topsoil and reducing the stability of the slope. The proposed changes to the system would channel storm water down the slope in a flexible 12-inch pipe and connect it to the existing storm system at a lower point on the hill alleviating direct flow of storm water on the slope. Mitigation Measures: No mitigation is recommended. Policy Nexus: N/A 3. Air Impacts: During construction, dust and exhaust from construction equipment would occur. Trucks needed to haul fill would cause dust and emit exhaust. After construction no impacts to the air would be expected. The applicant states that construction equipment would have mufflers and exhaust systems in good working order and that dust would be kept to a minimum by watering the excavation as needed. Mitigation Measures: No further mitigation is recommended. Policy Nexus: N/A ERG Report.doc City of Renton PIB/PW Department STORM SYSTEM PROJECT -N 26TH S REPORT OF AUGUST 9, 2005 4. Plants 'ARKPLN Enviror-r-ntal Review Committee Staff Report LUA-05-080, ECF, CAR Page 40f4 Impacts: Shrubs and trees would be removed in a 20-foot by 40 foot area at the top of the slope where a manhole would be installed and pipe placed in trenches. The trees are primarily cottonwoods less than 6-inches in diameter. The applicant proposes to replant this area with grass after construction is completed. Small trees and shrubs would be removed in a 60-foot by 6-foot strip on protected slopes to enable placement of an above ground flexible pipe. Large trees would be avoided and removed only if it was not possible to avoid them with the flexible pipe. One six-inch in diameter fir tree would be removed. The applicant is proposing to replant this area with grass. Landscaped areas on private property would be disturbed. The areas would be restored to match the landscaping that was removed. The project must comply with requirements and conditions of approval relating to revegetation as set forth in the Exemption from Tree Cutting and Land Clearing and the Waiver from Steep Slope Critical Areas Regulations granted for the project. Mitigation Measures: No further mitigation is recommended. Policy Nexus: N/A E. COMMENTS OF REVIEWING DEPARTMENTS The proposal has been circulated to City Departmental/Divisional Reviewers for their review. There were no comments by City Reviewers. Where applicable, these comments have been incorporated into the text of this report as Mitigation Measures and/or Notes to Applicant. ~ Copies of all Review Comments are contained in the Official File. Copies of all Review Comments are attached to this report. Environmental Determination Appeal Process Appeals of the environmental determination must be filed in writing on or before 5:00 PM on August 29, 2005. Appeals must be filed in writing together with the required $75.00 application fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98055. Appeals to the Examiner are governed by City of Renton Municipal Code Section 4-8-110.B. Additional information regarding the appeal process may be obtained from the Renton City Clerk's Office, (425) 430-6510. ERC Report.doc City of Renton Department of Planning / Building / Public works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: Su...r~/W~.let~~r COMMENTS DUE: JULY 29, 2005 . APPLICATION NO: LUA05-080, ECF, CAR DATE CIRCULATED: JULY 15, 2005 APPLICANT: City of Renton Surface Water Utility PROJECT MANAGER: Valerie Kinast PROJECT TITLE: N 26th StiPark PI N Storm System Project PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): NlA LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earlh Housing Air Aesthetics Water Light/Glare Plants Recreation LandlShoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airporl Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this a plication with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additio m~ ation is needed to properly assess this proposal. Date City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET COMMENTS DUE: JULY 29, 2005 APPLICATION NO: LUA05-0BO, ECF, CAR DATE CIRCULATED: JULY 15, 2005 APPLICANT: City of Renton Surface Water Utility PROJECT MANAGER: Valerie Kinast PROJECT TITLE: N 26th SVPark PI N Storm System Project PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (Qross): N/A LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add B to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housin.o Air Aesthetics Water UghtiGlare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy! Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this ap lication with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where:additional' Ztion is needed to properly assess this proposal. '?1uJ[ -/ . Signature of Director or Authorized Representative Date City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: F·,rc.. APPLICATION NO: LUA05-080, ECF, CAR APPLICANT: City of Renton Surface Water Utility PROJECT TITLE: N 26th SVPark PI N Storm System Project SITE AREA: N/A LOCATION: Park PI N from 2500 -2400 Block COMMENTS DUE: JU~~ .2005 PROJECT MANAGER: v~I~~eIKinast PLAN REVIEW: Mike DJt~rlJ I JUL ,~ ')fin" BUILDING AREA (grossY: N/A J L.VVJ I WORK ORDER NO: 77#47 ------ -----.:---. SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet oran-existtn~1ILse\fJer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water UghtiGlare Plants Recreation Land/Shoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. with particular attention to those areas in which we have expertise and have identified areas of probable impact or ~J.A'o'l~isv,nv.e,reded to properly .. ,"" /hi> Propo>".~~ S Date If-( Signatur City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: TrOl\Wur*~+,ef\ COMMENTS DUE: JULY 29, 2005 . APPLICATION NO: LUA05-080, ECF, CAR DATE CIRCULATED: JULY 15, 2005 APPLICANT: City of Renton Surface Water Utility PROJECT MANAGER: Valerie Kinast PROJECT TITLE: N 26th SVPark PI N Storm System Project PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housina Air Aesthetics Water UghtiGlare Plants Recreation LandlShoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed thi Iication with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additi al information is needed to properly assess this proposal. ~v< .;~ 7·-2 7-os- Signature of Director or Authorized Representative Date City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: ?n"')OeK"'~ 5'1C5. APPLICATION NO: LUA05-0BO, ECF~ CAR .J APPLICANT: City of Renton Surface Water Utility PROJECT TITLE: N 26th SVPark PI N Storm System Project SITE AREA: N/A LOCATION: Park PI N from 2500 -2400 Block COMMENTS DUE: JULY 29, 2005 DATE CIRCULATED: JULY 15, 2005 PROJECT MANAGER: Valerie Kinast PLAN REVIEW: Mike Dotson BUILDING AREA (gross): N/A WORK ORDER NO: 77447 JUL ~ v LUUJ CITY OF RENTON UTILITY SYSTEMS SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add B to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water Light/Glare Plants Recreation Land/Shoreline Use Lltilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS \_~t ~s ~. City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: Par~~ COMMENTS DUE: JULY 29, 2005 APPLICATION NO: LUA05-080, ECF, CAR DATE CIRCULATED: JULY 15,2005 APPLICANT: City of Renton Surface Water Utility PROJECT MANAGER: Valerie Kinast PROJECT TITLE: N 26th St/Park PI N Storm System Project PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on pr(lvate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housing Air Aesthetics Water UghtlGlare Plants Recreation LandlShoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional information is needed to properly assess this proposal. ~~ytadJ Date I Proposed Mitigation Measures: The following Mitigation Measures will likely be imposed on the proposed project. These recommended Mitigation Measures address project impacts not covered by eXisting codes and regulations as cited above. 1. Follow recommendations of the Geotechnical Report with regard to wet weather construction and erosion control. Comments on the above application must be submitted In writing to Valerie Kinast, Associate Planner, Development Services Division, 1055 South Grady Way, Renton, WA 98055, by 5:00 PM on July 29,2005. If you have questions about this proposal, or wish to be made a party of record and receive additional notification by mail, contact the Project Manager. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. CONTACT PERSON: Valerie Kinast, Associate Planner; Tel: (425) 430-7289 PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION Belle Vista Apts Proposed Storm Li.ne I tJ \\~-~.~ ~~1 ~.~ ~ ~~ ~~ ~ ."" <::I ~ ~ ~ I~~ ~~J ~ ~ J «:Q~ ~ ~ ~,~~ "' ~ ~ ~ ~~ 1~~ ~ ~ ~~ ,~ ~ . ~~ 1 ~~ .~ , )-0 ~~ ~~ If you would like to be made a party of record to receive further information on this proposed project, complete i· \' ~~~. this form and return to: City of Renton, Development Planning, 1055 So. Grady Way, Renton, WA 98055. File No.!Name: LUA05-080, ECF, CAR I N 26th St/Park PI N Storm System Project NAME, r Yj~ fYl1vn ~ MAILING ADDRESS, q c( of":) lU, 2h'; {!t~ LiJ It 11,m ~b '----:;> ~ TELEPHONE NO.: y< d 7 / -/ /1:::> 7 . ~ ~.~ r a.ppOY-~ Oku..wiU.LiM:'A IJi:u L4:J d~ 2u:-{" <: ~ ·-1IJ.l . ~ (J.-L'du.. ~ ~A fh {!Lg-,u;;l 6fLtz I D_i11o~ .. ~iJ/L f1JJd;L/ v.A0 OM aJul dtUA{-1 ~ iA.~ I..£.t~ NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON-SIGNIFICANCE-MITIGATED (DNS-M) DATE: LAND USE NUMBER: PROJECT NAME: July 15, 2005 LUA05-080, ECF, CAR N 26th Street/Park Place N Storm System Project PROJECT DESCRIPTION: City of Renton Surface Water Utility proposes to replace up to 750 linl'lal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. PROJECT LOCATION: Park Place N, from 2400 to 2500 block OPTIONAL DETERMINATION OF NON·SIGNIFICANCE, MITIGATED (DNS·M): As the Lead Agency, the City of Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore, as permitted under the RCW 43.21 C.11 0, the City of Renton is using the Optional DNS-M process to give notice that a DNS- M is likely to be issued. Comment periods for the project and the proposed DNS-M are integrated into a single comment period. There will be no comment period following the issuance of the Threshold Determination of Non-Significance- Mitigated (DNS-M). A 14-day appeal period will follow the issuance of the DNS-M. PERMIT APPLICATION DATE: June 28, 2005 NOTICE OF COMPLETE APPLICATION: July 15, 2005 APPLICANT/PROJECT CONTACT PERSON: Daniel Carey, City of Renton Surface Water Utility; Tel: (425) 430-7293; Eml: dcarey@cl.renton.wa.us PermltsiRevlew Requested: Other Permits which may be required: Requested Studies: Location where application may be reviewed: CONSISTENCY OVERVIEW: Zonlng/Land Use: Environmental Documents that Evaluate the Proposed Project: Development Regulations Used For Project Mitigation: Environmental (SEPA) Review, Critical Areas Exemption, Exception from Land Clearing and Tree Cutting Regulations N1A Geotechnical Report PlanninglBuliding/Public Works Department, Development Services Division, Sixth Floor Renton City Hall, 1055 South Grady Way, Renton, WA 98055 The subject site is designated Residential Single Family (RSF) and Residential Multi-Family (RMF) Land Use on the City of Renton Comprehensive Land Use Map and Residential 8 Dwelling Units per Acre (R-8), and Residential Multi- Family (RMF) zoning designations on the City's Zoning Map. Environmental (SEPA) Checklist The project will be subject to the City's SEPA ordinance, Zoning Ordinance, Public Works Standards, and other applicable codes and regulations as appropriate. City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: £...c.c:ncmtc.1Jeve.lCIJ"lCY.l COMMENTS DUE: JULY 29, 2005 APPLICATION NO: LUA05-080, ECF, CAR DATE CIRCULATED: JULY 15, 2005 APPLICANT: City of Renton Surface Water Utility PROJECT MANAGER: Valerie Kinast PROJECT TITLE: N 26th SVPark PI N Storm System Project PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable Environment Minor Major Impacts Impacts Earth Air Water Plants Land/Shoreline Use Animals Environmental Health Energy/ Natural Resources B. POLICY-RELATED COMMENTS " J A .. /u C. CODE-RELATED COMMENTS More Information Necessary Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Housing Aesthetics UghtiGlare Recreation Utilities Transportation Public Services Historic/Cultural Preservation Airport Environment 10,000 Feet 14,000 Feet We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas where additional information is needed to properly assess this proposal. iU-t1 tit t{U/Jv{ ~-zax-Date \J z.t:? v Signature of Director or Authorized Representative City of Renton Department of Planning / Building / Public Works ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET REVIEWING DEPARTMENT: CQn~ Gr\ COMMENTS DUE: JULY 29, 2005 APPLICATION NO: LUA05-080, ECF, CAR DATE CIRCULATED: JULY 15, 2005 APPLICANT: City of Renton Surface Water Utility PROJECT MANAGER: Valerie Kinast PROJECT TITLE: N 26th StiPark PI N Storm System Project PLAN REVIEW: Mike Dotson SITE AREA: N/A BUILDING AREA (gross): N/A LOCATION: Park PI N from 2500 -2400 Block I WORK ORDER NO: 77447 SUMMARY OF PROPOSAL: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on provate property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS Element of the Probable Probable More Element of the Probable Probable More Environment Minor Major Information Impacts Impacts Necessary Environment Minor Major Information Impacts Impacts Necessary Earth Housin.Q Air Aesthetics Water Light/Glare Plants Recreation LandlShoreline Use Utilities Animals Transportation Environmental Health Public Services Energy/ Historic/Cultural Natural Resources Preservation Airport Environment 10,000 Feet 14,000 Feet B. POLICY-RELATED COMMENTS C. CODE-RELATED COMMENTS We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact or areas whe~ aitional information is need d to properly assess this proposal . ..... Date NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON-SIGNIFICANCE-MITIGATED (DNS-M) DATE: LAND USE NUMBER: PROJECT NAME: JUly 15, 2005 LUA05-080, ECF, CAR N 26th StreeVPark Place N Storm System Project PROJECT DESCRIPTION: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diametsr and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental reveiw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption Is needed to remove trees on a steep slope for the project. PROJECT LOCATION: Park Place N, from 2400 to 2500 block OPTIONAL DETERMINATION OF NON-SIGNIFICANCE, MITIGATED (DNS-M): As the Lead Agency, the City 01 Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore, as permmed under the RCW 43.21 C.ll0, the City of Renton is using the Optional DNS-M process to give nolice that a DNS· M is likely to be issued. Comment periods for the project and the proposed DNS-M are integrated into a single comment period. There witl be no comment period following the Issuance of the Threshold Determination of Non-Slgnificance- Mitigated (ONS-M). A 14-day appeal period will follow the issuance of the DNS-M. PERMIT APPLICATION DATE: June 28. 2005 NOTICE OF COMPLETE APPLICATION: July 15, 2005 APPLICANT/PROJECT CONTACT PERSON: Danl.1 Carey, City 01 Renton Surfaco Wat.r Utility; Tel: (425) 430-7293; Eml: dcareyOcl.renton.wa.u. PermltWRevlew Requested: Other PermIts which may be required: Location where application may be reviewed: CONSISTENCY OVERVIEW: ZonlngfLand Use: Envlronmenta' Document. that Evaluate the Proposed Project: Development RegulatIons Used For Project MItigation: Environmental (SEPA) Review, Critical Areas Exemption, Exception 'rom Land Clearing and Tree CuttIng RegulatIons NiA Geotechnical Report Plannlng/Bulldlng/Publlc Works Department, Development Services Division, Sixth Floor Renton City Hall, 1055 South Grady Way, Renton, WA 98055 The subject site is designated Residential Single FamUy (ASF) and Residential Multi-Family (AMF) Land Use on the City 01 Renton Comprehensive Land Use Map and Residential 8 Dwetling Units per Acre (A-8), and ReSidential Multi- Family (RMF) zoning designations on the City's Zoning Map. Environmental (SEPAl Checklist The project will be subject to the City's SEPA ordinance, Zoning Ordinance, Public Works Standards, and other applicable codes and regulations as appropriate. Proposed Mitigation Measures: The following Mitigation Measures will likely be imposed on the proposed project. These recommended Mitigation Measures address project Impacts not covered by existing codes and regulations as cited above. ,. Follow recommendations at the Geotechnical Report with regard to wet weather construction and .ro.lon control. Comments on the above application must be submitted In writing to Valerie Klnast, Associate Plenner, Development Servlc.s Division, 1055 South Grady Way, Renton, WA 98055, by 5:00 PM on July 29, 2005. If you have questions about this proposal, or wish to be made a party of record and receive additional notification by mail, contact the Project Manager. Anyone who submits written comments will automatically become a party of record and will be notified of any decision on this project. CONTACT PERSON: Valerie Klnast, Associate Planner; Tel: (425) 430-7289 PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION Belle Vista Apts Proposed Storm Line If you would like to be made a party of record to receive further information on this proposed project, complete this form and return to: City of Renton, Development Planning, 1055 So. Grady Way, Renton, WA 98055. File NoJName: LUA05-0BO, ECF, CAR / N 26'" SVPark PI N Storm System Proiect NAME: MAILING ADDRESS: _________________________ _ TELEPHONE NO,: CERTIFICATION I, ~eJ'-~or~>tc:. V'\ , hereby certify that ::3 copies of the above document were"posted by me in3 conspicuous places or nearby the described property on ~ __ \' J5~ R ~+.~ ,;' P r"_, <, "'-:;'>", DATE: 7-IS-oS SIGNED: f.J' :~ ;~; T t,Fi~ y" A TT~ST: ,Sl}bscribed and sw?cm) before me, a N~y PubliCI in ~?, fOJ the State o/,W;lshington reJidi~in! ". 0 ~tf{J tVA, on the ..'> L day of l]!!. Yf1.1 T ,,':'L,) ( J0. O[..tq-!. ~ NOTARY PUBLIC SIGNAtURE; I" ,c.-, i" ",' '-, 9·(:~: ..... ~ en: CITY OF RENTON CURRENT PLANNING DIVISION AFFIDAVIT OF SERVICE BY MAILING On the 15th day of July, 2005, I deposited in the mails of the United States, a sealed envelope containing Acceptance Memo & NOA documents. This information was sent to: Daniel Carey, City of Renton Surface Water Utility Owner Surrounding Property Owners (NOA only) See Attached (Signature of sende'!;-::!ff ~ STATE OF WASHINGTON ) ) SS COUNTY OF KING ) I certify that I know or have satisfactory evidence that Stacy Tucker signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument., /) I) _I) Dated: {;/!P/o<; Qcw~ L/~ Notary Public in and for the State of Washington Notary (Print):_ ..... fi-u,_d_, '_' j/_7_c~_h_._h_{}_,_A-t_1_~_._'_·· c;_~r)_! _~_L_r ______ _ My appointment expires: /~r:" ' 'e/~/ " " ~, -----------------------~~..-;;.--,..:., .. '.~ N 26th StreeVPark Place N Storm System Project '. ~ i ----------------------~~~~----~ I , LUA05-080, ECF, CAR • I" ----------------------~~ ....... -.-. -~ ........ ' >.7:.:': ,-{.~ ~ <. -' 229650015105 MAO YU+MIN WU 1221 N 26TH ST RENTON WA 98056 334450023604 MCDONALD PATRICK 1405 N 24TH ST RENTON WA 98056 229650011500 OLDS PETRUDE WILLIAM JR+JEA 1314 N 26TH ST RENTON WA 98056 229650013100 REED TIMOTHY 1627 NE STANTON PORTLAND OR 97212 229650015006 SCHEER ROBERT D+BUHRIG AMY L 1301 N 26TH ST RENTON WA 98056 229650012003 SHAY ALICE MAY 1411 N 26TH ST RENTON WA 98056 334450025005 STORK MICHAEL R+BARBARA J 2219 MEADOW AV N RENTON WA 98056 052305906506 WAGNER RICHARD JORGENSEN ANNABELLE 2411 GARDEN CT N RENTON WA 98056 334450031508 MARINA LANDING C/O HSC REAL ESTATE INC PO BOX 19001 SEATTLE WA 98109 229650012201 MILLER MICHELE 1409 N 26TH ST RENTON WA 98056 229650014009 PALMER GARY D+MARCIE M 2507 PARK PL NORTH RENTON WA 98056 052305906209 REED TIMOTHY M+PATRICIA M 1627 NE STANTON RD PORTLAND OR 97212 229650012607 SCHOFIELD JOHN M 2505 MEADOW AV N RENTON WA 98056 052305903800 SMITH DAVID M 1308 N 26TH RENTON WA 98056 229650013209 TAIWO JOSEPH A+BOTERO IRENE 2421 MEADOW AV N RENTON WA 98056 229650013308 WEG LLC PO BOX 2701 RENTON WA 98056 052305906407 MATHESON JAMES K+CHERYL J 2417 GARDEN CT N RENTON WA 98056 334450023406 MULLINAUX MICHAEL G 1415 N 24TH RENTON WA 98056 229650012904 RADNICH ROBERT B 2501 MEADOW AV N RENTON WA 98056 229650013605 RING JACK & DOROTHY 1830 DORAL CT PAHRUMP NV 89048 229650015501 SCOTT JAMES B 1405 N 28TH ST RENTON WA 98055 229650020006 SOBRATO DEVELOPMENT CO 10600 N DEANZA BL #200 CUPERTINO CA 95014 229650011906 TYLER CHERYL PO BOX 921 RENTON WA 98057 229650013803 YAO LIN XIN 2415 PARK PL N RENTON WA 98056 334450029007 ABBEY VINCENT H D EXECUTOR 9005 21ST AV NW SEATILE WA 98117 229650011807 BANASKY PATRICIA K 4310 NE 5TH CT #102 RENTON WA 98059 052305900301 BURLINGTON NORTHRN SANTA FE ATIN PROP TAX PO BOX 96189 FORT WORTH TX 76161 229650012508 CULLERS MARTHA E 2507 MEADOW AV N RENTON WA 98056 052305900400 FLEMING ROGER M 1404 N 24TH ST RENTON WA 98056 052305906605 GALVIN CATHERINE & RICHARDS 2407 GARDEN CT N RENTON WA 98056 229650014504 GROVE JULIE K 2515 PARK PL N RENTON WA 98056 334450023505 HOLMA BETTY M 1409 NORTH 24TH STREET RENTON WA 98056 052305904501 JENSEN CHARLES 2621 MEADOW PL N RENTON WA 98056 229650013407 LEE KEVIN & PRISCILLA 2420 GARDEN CT N RENTON WA 98056 229650014207 ARNOLD GARY & RENEE 2520 PARK PL N RENTON WA 98056 229650011005 BOEHME JOE 2607 MEADOW AV N RENTON WA 98055 052305904204 CARLSEN III JOHN A 17553 SE 133RD RENTON WA 98056 052305902406 ENNEKING RONALD+DONNA 1325 N 24TH ST RENTON WA 98056 052305905102 FOSS LAUNCH & TUG CO 660 W EWONG SEATILE WA 98119 052305902307 GIANINI KATHLEEN M 1311 N 26TH ST RENTON WA 98055 229650012300 HAMMOND ROBERT A+MILDRED M 1313 N 26TH ST RENTON WA 98056 229650014405 HOPKINS RICHARD AND SUSAN TRUST 2511 PARK PL N RENTON WA 98056 052305902505 JONES LEWIS HUGH+SALLY A 1401 N 24TH ST RENTON WA 98056 052305903701 LINCOLN DAVID M 1412 N 24TH ST RENTON WA 98056 229650012102 BANASKY PATRICIA 4310 NE 5TH CT #102 RENTON WA 98059 052305903909 BRE PROPERTIES/TAX DEPT 44 MONTGOMERY 36TH FLR SAN FRANCISCO CA 94104 229650013001 COLLIER GEORGE F 2419 MEADOW AV N RENTON WA 98055 229650011708 FELL LARRY E 1402 N 26TH ST RENTON WA 98056 229650016509 FRIENDS OF YOUTH GRIFFIN HOME 16225 NE 87TH A-6 REDMOND WA 98052 052305906308 GRIESER WALTER 2423 GARDEN CT N RENTON WA 98056 164450049006 HEARTHSTONE HOMES LLC PO BOX 3023 RENTON WA 98056 229650010502 HOWELL DENTON C & SHAWN M 2613 MEADOW AV NORTH RENTON WA 98056 229650010908 KLINEBURGER DIANNA R PO BOX 3268 RENTON WA 98056 229650011609 MANDT MARLEEN K 1408 N 26TH ST RENTON WA 98056 NOTICE OF APPLICATION AND PROPOSED DETERMINATION OF NON-SIGNIFICANCE-MITIGATED (DNS-M) DATE: LAND USE NUMBER: PROJECT NAME: July 15,2005 LUA05-080, ECF, CAR N 26th Street/Park Place N Storm System Project PROJECT DESCRIPTION: City of Renton Surface Water Utility proposes to replace up to 750 lineal feet of an existing storm sewer in Park Place North and on private property within easements. The replacement pipe would be 12 inches in diameter and add 8 to 12 new catch basins. The project is intended to improve drainage and reduce excessive water that runs down a hillside. The project requires environmental revelw and exemption from critical areas regulations to construct in a geologic hazard area. In addition, an exemption is needed to remove trees on a steep slope for the project. PROJECT LOCATION: Park Place N, from 2400 to 2500 block OPTIONAL DETERMINATION OF NON-SIGNIFICANCE, MITIGATED (DN8-M): As the Lead Agency, the City of Renton has determined that significant environmental impacts are unlikely to result from the proposed project. Therefore, as permitted under the RCW 43.21 C.11 0, the City of Renton is using the Optional DNS-M process to give notice that a DNS- M is likely to be issued. Comment periods for the project and the proposed DNS-M are integrated into a single comment period. There will be no comment period following the issuance of the Threshold Determination of Non-$ignificance- Mitigated (DNS-M). A 14-day appeal period will follow the issuance of the DNS-M. PERMIT APPLICATION DATE: June 28, 2005 NOTICE OF COMPLETE APPLICATION: July 15, 2005 APPLICANTIPROJECT CONTACT PERSON: Daniel Carey, City of Renton Surface Water Utility; Tel: (425) 430-7293; Eml: dcarey@cl.renton.wa.us PermltslRevlew Requested: Other Permits which may be required: Requested Studies: Location where application may be revieWed: CONSISTENCY OVERVIEW: ZonlnglLand Use: Environmental Documents that Evaluate the Proposed Project: Development Regulations Used For Project Mitigation: Environmental {SEPAl Review, Critical Areas Exemption, Exception from Land Clearing and Tree Cutting Regulations NlA Geotechnical Report Plannlng/Bulldlng/Publlc Works Department, Development Services Division, Sixth Floor Renton City Hall, 1055 South Grady Way, Renton, WA 98055 The subject site is designated Residential Single Family (RSF) and Residential Multi-Family (RMF) Land Use on the City of Renton Comprehensive Land Use Map and Residential 8 Dwelling Units per Acre (R-8), and Residential Multi- Family (RMF) zoning designations on the City's Zoning Map. Environmental {SEPAl Checklist The project will be subject to the City's SEPA ordinance, Zoning Ordinance, Public Works Standards, and other applicable codes and regulations as appropriate. Proposed Mitigation Mea __ .es: The following Mitigation Measures will likely ue imposed on the proposed project. These recommended Mitigation Measures address project impacts not covered by existing codes and regulations as cited above. 1. Follow recommendations of the Geotechnical Report with regard to wet weather construction and erosion control. Comments on the above application must be submitted in writing to Valerie Kinast, Associate Planner, Development Services Division, 1055 South Grady Way, Renton, WA 98055, by 5:00 PM on July 29,2005. If you have questions about this proposal, or wish to be made a party of record and receive additional notification by mail, contact the Project Manager. Anyone who submits written .comments will automatically become a party of record and will be notified of any decision on this project. CONTACT PERSON: Valerie Kinast, Associate Planner; Tel: (425) 430-7289 I PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION I Belle Vista Apts Proposed Storm LJ,ne If you would like to be made a party of record to receive further information on this proposed project, complete this form and return to: City of Renton, Development Planning, 1055 So. Grady Way, Renton, WA 98055. File NoJName: LUA05-DaO, ECF, CAR I N 26th StlPark PI N Storm System Project NAME: MAILING ADDRESS: _________________________ _ TELEPHONE NO.: ________ _ CITY OF RENTON MEMORANDUM Date: July 15, 2005 To: Daniel Carey, Surface Water Utility From: Valerie Kinast, Associate Planner; Development Planning Subject: N 26th SVPark PI N Storm System Project LUA05-080, ECF, CAR The Development Planning Section of the City of Renton has determined that the subject application is complete according to submittal requirements and, therefore, is accepted for review. It is tentatively scheduled for consideration by the Environmental Review Committee on August 9, 2005. Prior to that review, you will be notified if any additional information is required to continue processing your application. Please contact me, at 430-7286 if you have any questions. cc: File City of Renton DEVE' OJ:" , (,1-.:--.1• lAf:l'r;-f..J, n . LAND USE PERMIT .... { '1' ,'. [,' , 1.,··.I"Jf\Jli\,f" '.':; "1El\fT~\\; d (~ JUN 28 tJilS MASTER APPLICATIONECElvED PROPERTY OWNER(S) PROJECT INFORMATION NAME: City Of Renton PROJECT OR DEVELOPMENT NAME: N 26th St I Park PL N Storm System Project ADDRESS: City ROW in Park PL N PROJECTIADDRESS(S)/LOCATION AND ZIP CODE: Located in Park PL N, approx. 2500 to 2400 block, CITY: ZIP: and in City easements on private properties (easements being obtained) TELEPHONE NUMBER: KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): City ROW in Park PL N APPLICANT (if other than owner) NAME: City of Renton Surface Water Utility EXISTING LAND USE(S): SINGLE FAMILY RESIDENCE Attn: Daniel Carey MULTI-FAMILY RESIDENCE COMPANY (if applicable): City of Renton PROPOSED LAND USE(S): NO CHANGE ADDRESS: 1055 South Grady Way EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: Renton, WA ZIP: 98055 Residential Single Family, Residential Multi-Family CITY: PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION TELEPHONE NUMBER 425-430-7293 (if applicable): NA CONTACT PERSON EXISTING ZONING: R-8, RM-F PROPOSED ZONING (if applicable): NA NAME: City of Renton Surface Water Utility Attn: Daniel Carey SITE AREA (in square feet): appx. 2160 sf COMPANY (if applicable): City of Renton ( appx. 540 LF of new storm pipe x 4 ft width) SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED FOR SUBDIVISIONS OR PRIVATE STREETS SERVING ADDRESS: 1055 South Grady Way THREE LOTS OR MORE (if applicable): NA PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET CITY: Renton, WA ZIP: 98055 ACRE (if applicable): NA NUMBER OF PROPOSED LOTS (if applicable): None TELEPHONE NUMBER AND E-MAIL ADDRESS: 425-430-7293 Dcarey@ci.renton.wa.us NUMBER OF NEW DWELLING UNITS (if applicable): None H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (C1P)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterAppOl-City.doc 06114/05 PRC CT INFORMATION (contini I) NUMBER OF EXISTING DWELLING UNITS (if applicable): NA SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): None SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL BUILDINGS (if applicable): None SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA NET FLOOR AREA OF NON-RESIDENTIAL BUILDINGS (if applicable) : NA NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): NA PROJECT VALUE: $115,000 IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): o AQUIFER PROTECTION AREA ONE o AQUIFER PROTECTION AREA TWO o FLOOD HAZARD AREA sq. ft. X GEOLOGIC HAZARD (appx. 400 If) 1600 sq. ft. o HABITAT CONSERVATION sq. ft. o SHORELINE STREAMS AND LAKES o WETLANDS ___ sq. ft. ___ sq. ft. LEGAL DESCRIPTION OF PROPERTY (Attach legal description on separate sheet with the following information included) SITUATE IN THE NW QUARTER OF SECTION i, TOWNSHIP 23N ,RANGE 5E W.M. ,IN THE CITY OF RENTON, KING COUNTY, WASHINGTON. TYPE OF APPLICATION & FEES List all land use applications being applied for: 1. Environmental Review ~1,000.00 3. 2. Critical Areas ExemQtion Certificate of 4. ExemQtion N/C Staff will calculate applicable fees and postage: $ AFFIDAVIT OF OWNERSHIP I, (Print Name/s) , declare that I am (please check one) _ the current owner of the property involved in this application or ~ the authorize representative to act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein contained and the information herewith are in all respects true and correct to the best of my ~nowle~e and belief. I certify that I know or have satisfactory evidence that l'hn Ie I tLl. re tt ~ ~ §! signed this instrument and acknowle~ged it to b~/her/their free and voluntary act for the ~ _~ uses and purposes mentioned In the Instrument. (Signature of Owner/Repre entative) --{\ .. ~ ~ -"""'\ ~. J I \1U;nLMvrl :~~~~ .. ~~1I~\', ~+--'--'<-:...=..I....::..:::::--""".--'-----------f_~o.···~SSION~';:.~'" ~ ~: ~ ""t() •• ~ , Notary Public in and for the State of Washington :. :o~ "'\OTA~', ~'. ~ I. : ,... I"l r m: 'I. I. • U -.-en. "I ~ \ PUBLIC .: ~ I, ~.. .. 1 Notary (Print) ~11~eJe. N~UlMjtVlII \~t!~~~···::&"/ \\\ Wps~:'-': \,,"' ..... ,,'~- (Signature of Owner/Representative) My appointment expires: q II q I 1...0 0 S H:IFile SyslSWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27~2850 N 26th-Park PL NI1302 SEPA Appl\050426 MasterAppOI-City.doc 06114/05 · , RECEIVED City of Renton JUN 2 1 2005 CITY OF RENTON UTILITY SYSTEMS LAND USE PERMIT MASTER APPLICATION PROPERTY OWNER(S) TELEPHONE NUMBER AND E-MAIL ADDRESS: 425-430-7293 Dcarey@ci.renton.wa.us NAME: Sobrato Development CO Attn: David Lee PROJECT INFORMATION ADDRESS: 10600 N Deanza BL #200 PROJECT OR DEVELOPMENT NAME: N 26th St / Park PL N Storm System Project CITY: Cupertino, CA ZIP: 95014 PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: TELEPHONE NUMBER: Located in Park PL N, approx. 2500 to 2400 block, and in City easements on private properties APPLICANT (if other than owner) KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): 2296500200 NAME: City of Renton Surface Water Utility Attn: Daniel Carey EXISTING LAND USE(S): SINGLE FAMILY RESIDENCE COMPANY (if applicable): City of Renton MUL TI-FAMIL Y RESIDENCE ADDRESS: 1055 South Grady Way PROPOSED LAND USE(S): NO CHANGE CITY: Renton, WA ZIP: 98055 EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: TELEPHONE NUMBER 425-430-7293 Residential Single Family, Residential Multi-Family PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION CONTACT PERSON (if applicable): NA NAME: City of Renton Surface Water Utility EXISTING ZONING: R-8, RM-F Attn: Daniel Carey PROPOSED ZONING (if applicable): NA COMPANY (if applicable): City of Renton SITE AREA (in square feet): appx. 2160 sf ( 540 LF of new storm pipe x 4 ft width) ADDRESS: 1055 South Grady Way SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED FOR SUBDIVISIONS OR PRIVATE STREETS SERVING THREE LOTS OR MORE (if applicable): NA CITY: Renton, WA ZIP: 98055 PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET ACRE (if applicable): NA H:\FiIe Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp02-BelleV.doc 04/29/05 PRC CT INFORMATION contim , NUMBER OF PROPOSED LOTS (if applicable): None NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): NA NUMBER OF NEW DWELLING UNITS (if applicable): None PROJECT VALUE: $115,000 IS THE SITE LOCATED IN ANY TYPE OF NUMBER OF EXISTING DWELLING UNITS (if applicable): ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE NA SQUARE FOOTAGE (if applicable): SQUARE FOOTAGE OF PROPOSED RESIDENTIAL o AQUIFER PROTECTION AREA ONE BUILDINGS (if applicable): None 0 AQUIFER PROTECTION AREA TWO SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA o FLOOD HAZARD AREA sq. ft. SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL X GEOLOGIC HAZARD (appx. 400 If) 1600 sq. ft. BUILDINGS (if applicable): None o HABITAT CONSERVATION sq. ft. SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL o SHORELINE STREAMS AND LAKES sq. ft. BUILDINGS TO REMAIN (if applicable): NA NET FLOOR AREA OF NON-RESIDENTIAL BUILDINGS (if o WETLANDS sq. ft. applicable) : NA LEGAL DESCRIPTION OF PROPERTY (Attach legal description on separate sheet with the following information included) SITUATE IN THE NW QUARTER OF SECTION -L, TOWNSHIP 23N ,RANGE 5E W.M. ,IN THE CITY OF RENTON, KING COUNTY, WASHINGTON. TYPE OF APPLICATION & FEES List all land use applications being applied for: 1. Environmental Review ~1,000.00 3. 2. Critical Areas Exemgtion Certificate of 4. Exemgtion N/C Staff will calculate applicable fees and postage: $ AFFIDAVIT OF OWNERSHIP I, (Print Name/s) YqfN 1\1\. £<:>t tI!rr-o , declare that I am (please check one) _ the current owner of the property involve . this application or V-the authorized representative to act for a corporation (please attach proof of authorization) and that the foregoing statement and answ r ,herein contained and the information herewith are in all respects true and correct to the best of my knowledge and belief. \ I certify that I know or have satisfactory evidence that V\ I ~ signed this instrument and acknowledged it to be his/h-e-'r/t"""h-'ei-r f-re-e-a-nd"""v-o-Iu-n-ta-ry-a-ct"""f"-or-the . I uses and purposes mentioned in the instrument. ~~fJ (Signature of Owner/Representative) Nota'Y P"bI~;, ,"d to,'h. S~y Notary (Print) ____________ _ My appointment expires: _________ _ H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp02-BelleV.doc 04/29/05 EXHmITA Legal Description A portion of the Northwest Quarter of Section 5, Township 23 North, Range 5 East, W.M., in the City of Renton, King County, Washington, more particularly described as follows: Parcell That portion of Government Lot 2 in Section 5, Township 23 North, Range 5 East, W.M., In King County, Washington, lying easterly of Lake Washington Boulevard; EXCEPT that portion platted as Eldon Acres, according to the plat recorded in Volume] ] of Plats at Page 86, in King County, Washington; ALSO EXCEPT any portion thereof lying southerly and easterly of those common boundary lines as established in that certain Boundary Line Agreement recorded under King County Recording No. 8509] ]0605; TOGETHER WITH that portion of vacated Southeast ]OOth Street (formerly know as Mildred Avenue) adjoining or abutting thereon, which upon vacation, attached to said premises by operation of Jaw. Parcel 2 Lots 39, 40 and 4] of Eldon Acres, according to plat recorded in Volume I] of Plats at Page 86, in King County, Washington; EXCEPT that portion of Lot 4] conveyed to King County for road purposes by deed recorded under Recording No. ]020457; TOGETHER WITH that portion of vacated Southeast ]OOth Street (formerly known as Mildred Avenue) adjoining or abutting thereon, which upon vacation, attached to said premises by operation of law. Parcel 3 That portion of the North Half ofthe Southeast Quarter of the Northwest Quarter of Section 5, Township 23 North, Range 5 East, W.M., in King County, Washington, described as follows: Commencing at the Southeast Corner of Tract 26 of Eldon Acres, according to plat recorded in Volume] 1 of Plats at Page 86, in King County, Washington; Thence West 172 Feet to the True Point of Beginning; Thence West to the Point ofIntersection of the South Line of Tract 27 of Eldon Acres with the West Line of the East Half of the Northwest Quarter of said Section 5; Thence South the North Line ofC.D. Hillman's Lake Washington Garden of Eden, Division No.5, according to Plat recorded in Volume 11 of Plats at Page 83, in King County, Washington; Thence East to a point south of the True Point of Beginning; Thence North to the True Point of Beginning; EXCEPT that portion thereof lying easterly of the westerly margin of the abandoned right of way (200 feet in width) of Pacific Coast Railroad Company -Page 1- Parcel 4 EXHIBIT A Legal Description That portion of a City of Renton street right of way situated in the Northwest Quarter of Section 5, Township 23 North, Range 5 East, W.M., in King County, Washington, having a width of 50 feet known as Pelly Place North (formerly known as 102"d Place Southeast) as situated within the plat of Eldon Acres, according to the plat recorded in Volume 11 of Plats at Page 86, in King County, Washington, described as follows: Commencing at the Northwest Corner of Lot 28 of Said Plat, Thence South 16°57'45" East along the easterly right of way line of said street of 433 .98 feet to the southwest corner of Lot 27 of said plat, Thence North 88°37' 15" West a distance of 52.68 feet to the southeast corner of vacated Southeast 100th Street (formerly known as Mi Idred Avenue) Ordinance No. 1824, Thence North 16°57'45" West along the westerly right of way line of said street a distance of 405.81 feet to the northeast corner of Lot 39, Thence North 59°59'06" East a distance of 51.33 feet to the True Point of Beginning, EXCEPT that portion thereof conveyed by Statutory Warranty Deed recorded November 23, 1987, under Recording No. 8711230876. -Page 2- .4, ~ CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT State of California } } ss. County of Santa Clara } On ~ 17 , 20 oS , before me, B. MAZZONE, a otary PublIc III and for saId County and State, personally appeared JOHN M. SOBRATO "fipersonallY known to me -OR -0 proved to me on the basis of satisfactory evidence) to be the person(s-) whose name(s-) istam subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(i0s-), and that by his/her/their signature(s-) on the instrument the person(s-), or the entity upon behalf of which the person(s-) acted, executed the instrument. WITNESS my h d and official seal NOTARY llUBLIC, S A E OF CALIFORNIA My Comm~ssion Expires: August 21. 2008 , " e RECEIVED City of Renton JUN 0 7 2005 LAND USE PERMIT CITY OF RENTON UTILITY SYSTEMS MASTER APPLICATION PROPERTY OWNER(S) PROJECT INFORMATION NAME: Lin Xin Yao PROJECT OR DEVELOPMENT NAME: N 26th St I Park PL N Storm System Project ADDRESS: 2415 Park PL N PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: Located in Park PL N, approx. 2500 to 2400 Block, CITY: Renton, WA ZIP: 95056 and in City easements on private properties. TELEPHONE NUMBER: KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): 2296500138 APPLICANT (if other than owner) EXISTING LAND USE(S): SINGLE FAMILY RESIDENCE NAME: City of Renton Surface Water Utility MUL TI-FAMIL Y RESIDENCE Attn: Daniel Carey PROPOSED LAND USE(S): NO CHANGE COMPANY (if applicable): City of Renton EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: ADDRESS: 1055 South Grady Way Residential Single Family, Residential Multi-Family CITY: Renton, WA ZIP: 98055 PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION (if applicable): NA TELEPHONE NUMBER 425-430-7293 EXISTING ZONING: R-8, RM-F CONTACT PERSON PROPOSED ZONING (if applicable): NA NAME: City of Renton Surface Water Utility Attn: Daniel Carey SITE AREA (in square feet): appx. 2160 sf ( 540 LF of new storm pipe x 4 ft width) COMPANY (if applicable): City of Renton SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED FOR SUBDIVISIONS OR PRIVATE STREETS SERVING THREE LOTS OR MORE (if applicable): NA ADDRESS: 1055 South Grady Way PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET ACRE (if applicable): NA CITY: Renton, WA ZIP: 98055 NUMBER OF PROPOSED LOTS (if applicable): None TELEPHONE NUMBER AND E-MAIL ADDRESS: NUMBER OF NEW DWELLING UNITS (if applicable): None 425-430-7293 Dcarey@ci.renton.wa.us H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp03-Yao.doc 04129/05 , PRe CT INFORMATION (contini ) NUMBER OF EXISTING DWELLING UNITS (if applicable): PROJECT VALUE: $115,000 NA SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): None IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA o AQUIFER PROTECTION AREA ONE SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL o AQUIFER PROTECTION AREA TWO BUILDINGS (if applicable): None o FLOOD HAZARD AREA sq. ft. SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA X GEOLOGIC HAZARD (appx. 400 If) 1600 sq. ft. NET FLOOR AREA OF NON-RESIDENTIAL BUILDINGS (if o HABITAT CONSERVATION sq. ft. applicable) : NA o SHORELINE STREAMS AND LAKES NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): NA o WETLANDS LEGAL DESCRIPTION OF PROPERTY ___ sq.ft. ___ sq.ft. (Attach legal description on separate sheet with the following information included) SITUATE IN THE NW QUARTER OF SECTION i, TOWNSHIP 23N ,RANGE 5E W.M. ,IN THE CITY OF RENTON, KING COUNTY, WASHINGTON. TYPE OF APPLICATION & FEES List all land use applications being applied for: 1. Environmental Review ~1,000.00 3. 2. Critical Areas Exem(2tion Certificate of 4. Exem(2tion N/C Staff will calculate applicable fees and postage: $ AFFIDAVIT OF OWNERSHIP I, (Print Name/s) l;,J ·X t I\J 1(J...,() , declare that I am (please check one) vithe current owner of the property involved in this application or __ the authorized representative to act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein contained and the information herewith are in all respects true and correct to the best of my knowledge and belief. (Signature of Owner/Representative) (Signature of Owner/Representative) I certify that I know or have satisfactory evidence that LIN XI tV Y 4,.0 signed this instrument and acknowledged it to be his/her/their free and voluntary act for the uses and purposes mentioned in the instrument. Notary Public in and for the State of Washington Notary (print)---,-A,-5-,H"-IM~1H.:....!!A'--J...-...:::$::<..:I:...:.,y.:;..J....:..A1...J...:(J"-!.vJ~S __ My appointment exPires:_---Li LjI/f-L1-I4-t!..::O..:::g'--___ _ H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp03-Yao.doc 04/29105 EXHIBIT A Legal Description A portion of the Northwest Quarter of Section 5, Township 23 North, Range 5 East, W.M., in the City of Renton, King County, Washington, more particularly described as follows: Lot 27 of Eldon Acres, according to the plat thereof recorded in Volume 11 of Plats, Page 86, Records of King County Washington. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp03-Yao-LegaIOescript.doc City of Renton LAND USE PERMIT MASTER APPLICATION PROPERTY OWNER(S) PROJECT INFORMATION NAME: Richard Wagner PROJECT OR DEVELOPMENT NAME: N 26th St I Park PL N Storm System Project ADDRESS: 2411 Garden CT N PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: Located in Park PL N, approx. 2500 to 2400 block, CITY: Renton, WA ZIP: 95056 and in City easements on private properties TELEPHONE NUMBER: KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): 0523059065 APPLICANT (if other than owner) EXISTING LAND USE(S): SINGLE FAMILY RESIDENCE NAME: City of Renton Surface Water Utility MUL TI-FAMIL Y RESIDENCE Attn: Daniel Carey PROPOSED LAND USE(S): NO CHANGE COMPANY (if applicable): City of Renton EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: ADDRESS: 1055 South Grady Way Residential Single Family, Residential Multi-Family CITY: Renton, WA ZIP: 98055 PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION (if applicable): NA TELEPHONE NUMBER 425-430-7293 EXISTING ZONING: R-8, RM-F CONTACT PERSON PROPOSED ZONING (if applicable): NA NAME: City of Renton Surface Water Utility Attn: Daniel Carey SITE AREA (in square feet): appx. 2160 sf ( 540 LF of new storm pipe x 4 ft width) COMPANY (if applicable): City of Renton SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED FOR SUBDIVISIONS OR PRIVATE STREETS SERVING THREE LOTS OR MORE (if applicable): NA ADDRESS: 1055 South Grady Way PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET ACRE (if applicable): NA CITY: Renton, WA ZIP: 98055 NUMBER OF PROPOSED LOTS (if applicable): None TELEPHONE NUMBER AND E-MAIL ADDRESS: 425-430-7293 Dcarey@ci.renton.wa.us NUMBER OF NEW DWELLING UNITS (if applicable): None H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp04-Wagoer.doc 04129/05 PRC :CT INFORMATION (contini ) NUMBER OF EXISTING DWELLING UNITS (if applicable): NA SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): None SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL BUILDINGS (if applicable): None SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA NET FLOOR AREA OF NON-RESIDENTIAL BUILDINGS (if applicable) : NA NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): NA PROJECT VALUE: $115,000 IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): o AQUIFER PROTECTION AREA ONE o AQUIFER PROTECTION AREA TWO o FLOOD HAZARD AREA sq. ft. X GEOLOGIC HAZARD (appx. 400 If) 1600 sq. ft. o HABITAT CONSERVATION sq. ft. o SHORELINE STREAMS AND LAKES o WETLANDS ___ sq.ft. ___ sq.ft. LEGAL DESCRIPTION OF PROPERTY (Attach legal description on separate sheet with the following information included) SITUATE IN THE NW QUARTER OF SECTION i, TOWNSHIP 23N ,RANGE 5E W.M. ,IN THE CITY OF RENTON, KING COUNTY, WASHINGTON. TYPE OF APPLICATION & FEES List all land use applications being applied for: 1. Environmental Review ~11000.00 3. 2. Critical Areas Exem~tion Certificate of 4. Exem~tion N/C Staff will calculate applicable fees and postage: $ AFFIDAVIT OF OWNERSHIP I, (Print Name/s) ~ u.>A~ , declare that I am (please check one) the current owner of the property involved in this app~4i'i~gIlFg&gR'a'i u!l te Eli· and that the foregoing state nts and answers herein contained and the information herewith are in all respects true and correct to the best of my knowledge and belief. I certify that I know or have satisfactory evidence)b.q! Q \~ Wp.(:)t.l~ signed this instrument and acknowledged it to b~her/their free and voluntary act for the uses and purposes mentioned in the instrument. """'''\';).1':" ~ _ .. -...... \..E.E pi'I'~11 c-f ~ ,:-~\ ........ -.q-9. 'I , , .~: A.~ .. ~sS\ON ~-+:'. 0..,(\.'" ~ : .. ~ ~ .. ". " ; /0 ~OTAA;, ~" ~ . Notary Public in and for the State of Washington ~ ~ () _.-. en: ~ , • " II' ~ <P ~. ""USUC : : ~;A'. ..~: (Signature of Owner/Representative) 'I ..., • • 0 • \?j:.·· .. ~-7-01 ..... c;: .: Notary (Print) ~ \ '-l::t ~\: -).»~ Of:'WA"~~\~.;:-f' '" .,~""-'~ '\\\.'\."": .".",-,,->- My appointment expires:·"] ~~ H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp04-Wagner,doc 04/29/05 EXHIBIT A Legal Description A portion of the Northwest Quarter of Section 5, Township 23 North, Range 5 East, W.M., in the City of Renton, King County, Washington, more particularly described as follows: Parcel C of City of Renton Short Plat No. 75-016 (L. James Keffer Short Subdivision), as recorded under King County Recording No. 7610110563, Records of King County, Washington. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp04-Wagner-LegaIDescripLdoc --City of Renton MAY 1 8 2005 LAND USE PERMIT CITy OF UTILITY S~ENTON STEMS MASTER APPLICATION PROPERTY OWNER(S) PROJECT INFORMATION NAME: James Matheson PROJECT OR DEVELOPMENT NAME: N 26th St I Park PL N Storm System Project ADDRESS: 2417 Garden CT N PROJECT/ADDRESS(S)/LOCATION AND ZIP CODE: Located in Park PL N, approx. 2500 to 2400 block, CITY: Renton, WA ZIP: 95056 and in City easements on private properties TELEPHONE NUMBER: KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S): 0523059064 APPLICANT (if other than owner) EXISTING LAND USE(S): SINGLE FAMILY RESIDENCE NAME: City of Renton Surface Water Utility MULTI-FAMILY RESIDENCE Attn: Daniel Carey PROPOSED LAND USE(S): NO CHANGE COMPANY (if applicable): City of Renton EXISTING COMPREHENSIVE PLAN MAP DESIGNATION: ADDRESS: 1055 South Grady Way Residential Single Family, Residential Multi-Family CITY: Renton, WA ZIP: 98055 PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION (if applicable): NA TELEPHONE NUMBER 425-430-7293 EXISTING ZONING: R-8, RM-F CONTACT PERSON PROPOSED ZONING (if applicable): NA NAME: City of Renton Surface Water Utility Attn: Daniel Carey SITE AREA (in square feet): appx. 2160 sf ( 540 LF of new storm pipe x 4 ft width) COMPANY (if applicable): City of Renton SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED FOR SUBDIVISIONS OR PRIVATE STREETS SERVING THREE LOTS OR MORE (if applicable): NA ADDRESS: 1055 South Grady Way PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET ACRE (if applicable): NA CITY: Renton, WA ZIP: 98055 NUMBER OF PROPOSED LOTS (if applicable): None TELEPHONE NUMBER AND E-MAIL ADDRESS: 425-430-7293 Dcarey@ci.renton.wa.us NUMBER OF NEW DWELLING UNITS (if applicable): None H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp05-Matheson.doc 04/29/05 PRC :CT INFORMATION (contini ) NUMBER OF EXISTING DWELLING UNITS (if applicable): NA SQUARE FOOTAGE OF PROPOSED RESIDENTIAL BUILDINGS (if applicable): None SQUARE FOOTAGE OF EXISTING RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL BUILDINGS (if applicable): None SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL BUILDINGS TO REMAIN (if applicable): NA NET FLOOR AREA OF NON-RESIDENTIAL BUILDINGS (if applicable): NA NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW PROJECT (if applicable): NA PROJECT VALUE: $115,000 IS THE SITE LOCATED IN ANY TYPE OF ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE SQUARE FOOTAGE (if applicable): o AQUIFER PROTECTION AREA ONE o AQUIFER PROTECTION AREA TWO o FLOOD HAZARD AREA sq. ft. X GEOLOGIC HAZARD (appx. 400 If) 1600 sq. ft. o HABITAT CONSERVATION sq. ft. o SHORELINE STREAMS AND LAKES o WETLANDS ___ sq.ft. ___ sq.ft. LEGAL DESCRIPTION OF PROPERTY (Attach legal description on separate sheet with the following information included) SITUATE IN THE NW QUARTER OF SECTION i, TOWNSHIP 23N ,RANGE 5E W.M. ,IN THE CITY OF RENTON, KING COUNTY, WASHINGTON. TYPE OF APPLICATION & FEES List all land use applications being applied for: 1. Environmental Review ~1,000.00 3. 2. Critical Areas Exem~tion Certificate of 4. Exem~tion N/C Staff will calculate applicable fees and postage: $ AFFIDAVIT OF OWNERSHIP I, (Print Name/s) , declare that I am (please check one) _ the current owner of the property involved in this application or __ the authorized representative to act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein contained and the information herewith are in all respects true and correct to the best of my knowledge and belief. I certify that I know or have satisfactory evidence that ~T ~eAl ~ !i~~ . signed this instrument and acknowledged it to be his/her/their free and vlUlltary act for the uses and purposes mentioned in the instrument. (Signature of Owner/Representative) Notary (Print) My appointment expires: H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\OS0426 MasterApp05-Matheson.doc 04/29/05 EXHIBIT A Legal Description A portion of the Northwest Quarter of Section 5, Township 23 North, Range 5 East, W.M., in the City of Renton, King County, Washington, more particularly described as follows: Parcel B of City of Renton Short Plat No. 75-016 (L. James Keffer Short Subdivision), as recorded under King County Recording No. 7610110563, Records of King County, Washington. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050426 MasterApp05-Matheson-LegaIDescript.doc PROJECT NARRATIVE N 26th ST I Park PL N STORM SYSTEM PROJECT The project involves constructing a new stormwater drainage system in Park PL Nand in existing and new easements on private property to replace parts of the existing stormwater drainage system. The purpose of the project is to reduce or eliminate flow to parts of the existing storm system that runs between homes and discharge stormwater at the top of the steep slope. Overall, the new stormwater system will consist of about 500 to 750 linear feet of 12-inch pipe and about 8 to 12 new catch basins. The majority of the new storm system will be located in City ROW or easements with slopes less than 10 percent. Part of the storm system will be located on a 40 to 50 percent steep slope. A flexible high-density plastic pipe will be placed above ground for the portion of the storm system that runs down the steep slope. The new storm system will be located in Park PL N, from the intersection of N 26th St to the end of Park PL N. At the end of Park PL N the new storm system will continue about 150 feet to the south in new or existing easements on 2415 Park PL N, 2417 Garden CT N, 2411 Garden CT N, and 2407 Garden CT N. The new storm system will extend down the steep slope to the east side of the Belle Vista Apartment complex and will connect to an existing storm system in the apartment complex. Easements are currently being negotiated with property owners and will be finalized before construction commences. The following land use permits may be needed: City of Renton Lands Use Permit Master Application and Environmental Checklist. City of Renton Exemption for Critical Areas -Geologic Hazard Areas City of Renton Exemption for Tree Cutting and Land Clearing The project site will be located in City right-of-way in Park PL N and in easements on private property. The project site and adjacent properties are zoned R-8 and RM-F (Residential Single-Family and Residential Multi-Family. Part of the project area site is used as a street, the private properties have single-family homes on them, and the multi-family property has an apartment complex on it. Part of the site is located in a Geologic Hazard Area including Steep Slopes, Landslide Hazards, and Erosion Hazard. The soils are mapped by the Soil Conservation Service as Indianola (InC) and Alderwood (AgO). In general the soils are described as sandy or gravelly loam. Permeability is slow to medium, depending on slope. An area of existing trees and shrubs at the top side of the slope will need to be removed to install a new stormwater manhole and part of the underground section of the new storm system. The area will be about 20-feet wide by 35-feet long. The area consists of shrubs, such as blackberries, and mainly cottonwood trees less than 6-inches in diameter. A flexible stormwater pipe will be placed above ground at the top of the steep slope and will be routed around the trees on the slope, Trees on the slope will not be removed unless it is not possible to avoid them with the flexible pipe. The estimated construction cost of the new stormwater system is $115,000 H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27 -2850 N 26th-Park PL N\ 1302 SEPA Appl\050627 Project Narrative-Final.doc Page 1 CONSTRUCTION MITIGATION DESCRIPTION N 26th St I Park Pl N STORM SYSTEM PROJECT Proposed Construction Dates: Construction may occur between August 1, 2005 and October 31,2005 Hours of Operation: Monday through Friday between 7:00 AM and 5:00 PM. Work in the Belle Vista Apartment Complex may be limited to 7:30 AM to 4:30 PM Work on weekends is not expected. If work on weekends becomes necessary, it will require approval from the City Project Manager. Proposed HaulinglTransportation Routes: The Contractor will probably use 1-405, N 30th St, Park Ave N, N 28th St, Meadow Ave N, and N 26th St to reach the site in Park PL N. To reach the part of the construction site at the bottom of the slope the Contractor will use Lake Washington Blvd and the roads in the Belle Vista Apartment Complex. The contractor will be required to file a Traffic Control Plan with the City to identify the hauling routes and traffic control measures for the construction area. Park PL N will probably be limited to no parking and one lane only while construction is occurring in the street. Access to local driveways will be maintained, except when construction actually needs to cross a driveway. Measures to Minimize Impacts Erosion control measures such as storm drain inlet protection and silt fences per the King County Surface Water Design Manual will be used. Any soil stockpiles not in use will be covered with plastic sheets during rainy periods. If dust conditions develop, the contractor will be required to use a water truck to reduce blowing dust. All construction equipment will be required to have muffler and exhaust systems in good working order. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627 Project Constr Mitigate-Final.doc DEVELOPMENT SERVICES DIVISION ENVIRONMENTAL CHECKLIST City of Renton Development Services Division 1055 South Grady Way, Renton, WA 98055 Phone: 425-430-7200 Fax: 425-430-7231 PURPOSE OF CHECKLIST: JUN 28 2DU5 ~r:Cl.i:~H"'" , nc; l..r 'i t:D The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An Environmental Impact Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. INSTRUCTIONS FOR APPLICANTS: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. USE OF CHECKLIST FOR NONPROJECT PROPOSALS: Complete this checklist for non project proposals, even though questions may be answered "does not apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). For non project actions (actions involving decisions on policies, plans and programs), the references in the checklist to the words "project," "applicant," and "property or site" should be read as "proposal," "proposer," and "affected geographic area," respectively. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627-SEPA Checklist-Final.doc A. BACKGROUND 1. Name of proposed project, if applicable: N 26th St I Park PL N Storm System Project 2. Name of applicant: City of Renton Surface Water Utility, Attn: Daniel Carey 3. Address and phone number of applicant and contact person: City of Renton Surface Water Utility Attn: Daniel Carey 1055 South Grady Way Renton, WA 98055 425-430-7293 4. Date checklist prepared: June 2005 5. Agency requesting checklist: City of Renton Development Services Division 6. Proposed timing or schedule (including phasing, if applicable): Submit Environmental Checklist: June 2005 Advertise Project for Bids: July 2005 Construction: August -October 2005 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. No. 8. List any environmental information you know about that has been prepared, or will be prepared, directly related to this proposal. Geotechnical Report on soils and slope. 9. Do you know whether applications are pending for governmental approvals of other proposals directly affecting the property covered by your proposal? If yes, explain. No. 10. List any governmental approvals or permits that will be needed for your proposal, if known. City of Renton Exemption for Tree Cutting City of Renton Exemption for Critical Areas, Geologic Hazard Areas. 11. Give brief, complete description of your proposal, including the proposed uses and the size of the project and site. The project involves constructing a new stormwater drainage system in Park PL N and in utility easements on private property to replace parts of the existing stormwater drainage system. Overall, the new stormwater system will consist of about 500 to 750 linear feet of 12-inch pipe and about 8 to 12 new catch basins. The purpose of the project is to reduce or eliminate stormwater flow to parts of the existing storm system that run between homes and discharge stormwater at the top of the steep slope. Excess water running down the hillside has the potential to erode topsoil and can reduce the stability of the hillside. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627 -SEPA Checklist-Final.doc 2 12. The new storm system will start in Park PL N and will run to the south. Depending on the final design the new system may start at the intersection of N 26th St and Park PL N, or it may start 150 feet south of the intersection. Approximately 150 to 300 linear feet of new 12-inch pipe will be installed in a trench 4 to 5 feet deep in the street. New catch basins will be placed along the pipeline and where needed along the curb. At the south end of Park PL N the new storm system will continue to the south in new and existing easements on private property. About 190 linear feet of 12-inch pipe will be installed in a trench 3 to 8 feet deep in this section. At the top of the slope the new storm system will turn to the west and will extend down the slope to connect to the existing storm system in the Belle Vista Apartment complex. About 210 linear feet of 12-inch flexible plastic pipe will be installed in this section. The top of the slope is about 28 percent (3.6H to 1V). In that area construction machinery will install the new manhole and will excavate a trench down the slope for about 40 feet of buried pipe. The flexible plastic pipe will come out of the slope about 40 feet below the top and will be placed above ground on the slope for about 90 feet. That part of the slope is about 60 percent (1.66H to 1V). In that section the pipe will be installed by machinery working from either the top or bottom of the slope, and using cables and workers to install the pipe and guide it around any large trees or obstructions. At the bottom of the slope the pipe will go underground in a trench to the first manhole. From that manhole the pipe will be buried in a trench about 4 feet deep to connect to the existing storm system in the Belle Vista apartment complex. The area of existing trees and shrubs at the top of the slope, about 20 feet wide by 25 to 40 feet long, will need to be removed to install the buried section of the new storm system. In the 90-foot long section down the slope a width of 4 to 6 feet will be cleared of small trees and shrubs to install the new stormwater pipe. Large trees will not be removed in the 90 foot section, unless it is not possible to avoid them with the flexible pipe. At the bottom of the slope a 6-inch diameter fir tree will be removed to install the new stormwater pipe and manhole. The portions of the storm system in Park PL N will be patched with asphalt. The remaining portions of the new storm system will be in new or existing easements on private property. Where the storm system is in a driveway the patch will match the existing driveway material. The area at the top of the slope is mainly covered with grass, low shrubs, and blackberries. Part of the area at the top and down the slope contains deciduous trees like cottonwood. The sections that are disturbed by construction will be replanted with grass. The portions of the project in the landscaped areas of 2415 Park PL N and in the Belle Vista Apartment complex will be restored with landscaping to match the existing plants. The existing storm system in the driveway between 2515 and 2507 Park PL N will be kept in service. Runoff from the street will be collected by the new storm system so the existing system will mainly collect runoff from the driveway and adjacent homes. The existing storm pipe between the homes at 2507 and 2415 Park PL N will be inspected to determine if roof or footing drains are connected to it. If drains are connected to it the system will be kept in service. If there are no connections the storm pipe between the homes and the catch basin in the backyard of 2415 Park PL N will be abandoned. The top of the catch basin will be removed, and it will be filled with gravel and buried. Location of the proposal. Give sufficient information for a person to understand the precise location of your proposed project, including a street address, if any, and section, township, and range if known. If a proposal would occur over a range of area, provide the range or boundaries H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627-SEPA Checklist-Final.doc 3 of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably available. While you should submit any plans required by the agency, you are not required to duplicate maps or detailed plans submitted with any permit applications related to this checklist. The project is located in the NW quarter of Section 5, Township 23N, Range 5E in the City of Renton, King County, Washington. See attached figures and plans for project location. The new storm system will be located in Park PL N, from the intersection of N 26th St to the end of Park PL N. At the end of Park PL N the new storm system will continue about 150 feet to the south in new or existing easements on 2415 Park PL N, 2417 Garden CT N, 2411 Garden CT N, and 2407 Garden CT N. The new storm system will extend down the steep slope to the east side of the Belle Vista Apartment complex and will connect to an existing storm system in the apartment complex. Easements are currently being negotiated with the property owners, and will be finalized before construction commences. B. ENVIRONMENTAL ELEMENTS 1. EARTH a. General description of the site (circle one); flat, rolling, hilly, steep slopes, mountainous, other rolling, one steep slope for about 130 feet. b. What is the steepest slope on the site (approximate percent slope?) The steep slope averages 49% ( about 2.0H to 1V ). The steepest section is about 71 percent ( about 1.4H to 1V ). c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, muck)? If you know the classification of agricultural soils, specify them and note any prime farmland. The soil at the top of the slope near Park PL N is classified as InC by the Soil Conservation Service King County Soil Survey. InC is call Indianola loam fine sand, 4 to 15 percent slopes, by the Soil Survey and is described as an excessively drained soil that formed under conifers in sandy glacial drift. The soil is brown, dark yellowish-brown, and light olive-brown. Permeability is rapid, runoff is slow to medium, and the erosion hazard is slight to moderate. The soil east of Park PL N, on the steep slope, is classified AgO. AgO is called Alderwood gravelly sandy loam, 15 to 30 percent slopes, by the Soil Survey and is described as a moderately well drained soil formed under conifers in glacial depOSits. The soil is very dark brown, dark-brown, and grayish-brown gravelly sandy loam. Runoff is medium and erosion hazard is severe. d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, describe. None known H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627-SEPA Checklist-Final.doc 4 e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate source of fill. About 300 to 450 cubic yards of soil may be placed as trench backfill for the new stormwater lines. The contractor will supply the backfill from licensed gravel pits. f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. Minor erosion could occur during construction in the easements south of Park PL N. The contractor will be required to use typical erosion control methods described in the King Country Surface Water Design Manual. g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? There will be no change in the amount of impervious surface. About 25 percent of the new storm system is located in existing imperious surface (street, driveway) h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: 2. AIR The contractor will be required to use typical erosion control methods in the King Country Surface Water Design Manual, including filter fabric fences and catchbasin inlet protection. a. What types of emissions to the air would result from the proposal (i.e., dust, automobile, odors, industrial wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities if known. During construction, dust and exhaust from construction equipment will occur. After construction, no emissions are expected from the site. b. Are there any off-site sources of emission or odor that may affect your proposal? If so, generally describe. No. c. Proposed measures to reduce or control emissions or other impacts to air, if any: Construction equipment will have mufflers and exhaust systems in good working order. Dust will be kept down by watering the excavation as needed. 3. WATER a. Surface Water: 1) Is there any surface water body on or in the immediate vicinity of the site (including year- round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. No. 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. No. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627 -SEPA Checklist-Final.doc 5 3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material. None. 4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. No. 5) Does the proposal lie within a 1 OO-year flood plain? If so, note location on the site plan. No. 6) Does the proposal involve any discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. No. b. Ground Water: 1) Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. No. 2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals ... ; agricultural; etc.). Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. NA. c. Water Runoff (including storm water): 1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters, If so, describe. Stormwater runoff comes from the existing stormwater drainage system in Park PL N and the neighborhood east of Park PL N. An existing stormwater drainage system in Garden CT N flows to the west and north into one of the existing system in Park PL N. Overall, the drainage area for the new storm system is about 7.7 acres. The peak flow for the 25-year, 24-hour storm for the area, assuming future developed conditions, is about 3.1 cfs. The flow from the new storm system will connect to the existing storm system in the Belle Vista Apartment Complex. The Belle Vista storm system was required to be designed for the estimated flow from the upstream drainage area. That storm system drains to the City storm system in Lake Washington Blvd, and from there into Lake Washington. 2) Could waste material enter ground or surface waters? If so, generally describe. Any liquid spills in the street could enter the drainage system. The same potential currently exists with the eXisting drainage system. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627 -SEPA Checklist-Final.doc 6 d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if any: No new impacts are expected. The City of Renton Maintenance Department would respond to any problems with the storm system or liquid spills in City ROW. 4. PLANTS a. Check or circle types of vegetation found on the site: _X_ deciduous tree: alder, maple, aspen, other Cottonwood, Maple _X_ evergreen tree: fir, cedar, pine, other fir or pine trees _X_ shrubs _X_ grass __ pasture __ crop or grain __ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other __ water plants: water lily, eel grass, milfoil, other __ other types of vegetation misc landscaping shrubs b. What kind and amount of vegetation will be removed or altered? The area where the new pipe line will be constructed at the top of the slope is mainly covered with grass, landscaping shrubs, low shrubs, and blackberries. Vegetation in this area will be removed for construction. The area will be replanted after construction with grass. The landscaped areas on private property will be restored with landscaping to match existing plants. The area at the top and side of the slope where the flexible pipe will be buried in a trench will be disturbed to install the new manhole and pipe. The area will be about 20 feet wide and 40 feet long. The shrubs and trees (mainly cottonwoods less than 6-inches in diameter) in the area will need to be removed for construction. After construction the area will be restored with grass. In the gO-foot long section down the slope a width of 4 to 6 feet will be cleared of small trees and shrubs to install the new stormwater pipe. Large trees will not be removed in the gO-foot section, unless it is not possible to avoid them with the flexible pipe. At the bottom of the slope a 6-inch diameter fir tree will be removed to install the new stormwater pipe and manhole. The landscaped area in the Belle Vista Apartment complex will be disturbed. The landscaping will be restored to match the existing landscaping after construction is completed. c. List threatened or endangered species known to be on or near the site. None known. d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: All disturbed areas will be seeded with grass for long-term erosion control. Existing landscaping on private properties and in the apartment complex will be replaced. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27 -2850 N 26th-Park PL N\ 1302 SEPA Appl\050627-SEPA Checklist-Final.doc 7 5. ANIMALS a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: Birds: hawk, heron, eagle, songbirds, other _s;:.;m=a;.;.;:lI-=b=i:;...:rd=s:....i=n:...;9"",e;;.:n..:.;e=r..:;:a.:...1 __ Mammals: deer, bear, elk, beaver, other Typical small mammals such as mice and squirrels may be present Fish: bass, salmon, trout, herring, shellfish, other _____ _ b. List any threatened or endangered species known to be on or near the site. None known c. Is the site part of a migration route? If so, explain. No. d. Proposed measures to preserve or enhance wildlife, if any: NA. 6. ENERGY AND NATURAL RESOURCES a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. None needed for the completed project. b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. No. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any: NA. 7. ENVIRONMENTAL HEALTH a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. During construction fuel and oil spills could occur. 1) Describe special emergency services that might be required. Typical emergency services by the Fire Department and the Maintenance Division in case of fire, injury, or fuel spills. 2) Proposed measures to reduce or control environmental health hazards, if any: The Contractor will be required to keep construction equipment in good operating condition, and will be responsible to cleanup any oil or fuel leaks and spills, and repair leaking equipment. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627 -SEPA Checklist-Final.doc 8 b. Noise 1) What types of noise exist in the area which may affect your project (for example: traffic, equipment, operation, other)? None. 2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. Short-term: Noise from construction equipment may occur between the hours of 7 AM to 5 PM, Monday through Friday during construction. 3) Proposed measures to reduce or control noise impacts, if any: The contractor will be required to keep the construction equipment's mufflers and exhaust systems in good operating condition. 8. LAND AND SHORELINE USE a. What is the current use of the site and adjacent properties? The site and adjacent properties are used for City ROW, single family residences, and multifamily residences b. Has the site been used for agriculture? If so, describe. No. c. Describe any structures on the site. The location where the new storm system will be installed includes an asphalt street, concrete driveway, and the existing storm system and catch basins. d. Will any structures be demolished? If so, what? Portions of the existing storm system will be removed and replaced, or abandoned. e. What is the current zoning classification of the site? R-8 and RM-F f. What is the current comprehensive plan designation of the site? Residential Single Family, Residential Multi-Family g. If applicable, what is the current shoreline master program designation of the site? NA h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. Portions of the new stormwater system will be located in Geologic Hazard Areas including Landslide Areas (25% and 40%) and in Erosion Hazard Areas. i. Approximately how many people would reside or work in the completed project? NA H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27·2850 N 26th-Park PL N\1302 SEPA Appl\050627 -SEPA Checklist-Final.doc 9 j. Approximately how many people would the completed project displace? NA k. Proposed measures to avoid or reduce displacement impacts, if any: NA I. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: The project replaces an existing drainage system that serves the area with an new drainage system that eliminates stormwater discharge at the top of the steep slope. The potential for erosion by the stormwater discharge will be reduced. 9. HOUSING a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. None b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. None c. Proposed measures to reduce or control housing impacts, if any: NA 10. AESTHETICS a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed. The flexible pipe on the slope will be about 1-foot above the ground level. The majority of the new storm system will be under ground. b. What views in the immediate vicinity would be altered or obstructed? Removing a section of trees and shrubs at the top of the slope for the new stormwater manhole and down-slope pipe will alter the view. c. Proposed measures to reduce or control aesthetic impacts, if any: The area will be replanted with grass. In a short period of time the existing vegetation will start to re-occupy the area. 11. LIGHT AND GLARE a. What type of light or glare will the proposal produce? What time of day would it mainly occur? None b. Could light or glare from the finished project be a safety hazard or interfere with views? No H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627-SEPA Checklist-Final.doc 10 c. What existing off-site sources of light or glare may affect your proposal? None d. Proposed measures to reduce or control light and glare impacts, if any: NA 12. RECREATION a. What designated and informal recreational opportunities are in the immediate vicinity? None b. Would the proposed project displace any existing recreational uses? If so, describe. No c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: NA 13. HISTORIC AND CULTURAL PRESERVATION a. Are there any places or objects listed on, or proposed for, national state, or local preservation registers known to be on or next to the site? If so, generally describe. No b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or cultural importance known to be on or next to the site. None known. c. Proposed measures to reduce or control impacts, if any: NA 14. TRANSPORTATION a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. The upper side of the project area is served by N 26th St and Park PL N. The lower side of the project area is served by Lake Washington Blvd. b. Is site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? NA c. How many parking spaces would the completed project have? How many would the project eliminate? No change in existing street parking. H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627 -SEPA Checklist-Final.doc 11 d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe (indicate whether public or private? No, the streets will be restored to their existing condition. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. NO f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. None g. Proposed measures to reduce or control transportation impacts, if any: NA 15. PUBLIC SERVICES a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally describe. No b. Proposed measures to reduce or control direct impacts on public services, if any. The project will help reduce impacts on public services by eliminating a potential stormwater problem area. 16. UTILITIES a. Circle utilities currently available at the site: electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system, other. Electricity, natural gas, water, telephone, and sanitary sewer are available. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. The new stormwater pipes will be owned by the City of Renton. The new stormwater system will in installed in trenches excavated in the City ROWand in easements on private property. Construction will be provided by the City of Renton through private contractors. c. SIGNATURE I, the undersigned, state that to the best of my knowledge the above information is true and complete. It is understood that the lead agency may withdraw any declaration of non-significance that it might issue in reliance upon this checklist should there be any willful misrepresentation or willful lack of full disclosure on my part. Proponent: Name Printed: Date: H:\File Sys\SWP -Surface Water Projects\SWP-27 -Surface Water Projects (CIP)\27-2850 N 26th-Park PL N\1302 SEPA Appl\050627-SEPA Checklist-Final.doc 12 GEOTECHNICAL REPORT N 26th St I Park PL N STORM SYSTEM PROJECT At Shannon & Wilson, our mission is to be a progressive, well- managed professional consulting firm in the fields of engineering and applied earth sciences. Our goal is to perform our services with the highest degree of professionalism with due consideration to the best interests of the public, our ciie11ls, and our employees. Geotechnical Report Park Place North Storm Sewer Renton, Washington June 6, 2005 Submitted To: Roth Hill Engineering Partners, LLC Attn: Mr. Erik Waligorski, P.E. 2600 116th Avenue NE, Suite 100 Bellevue, Washington 98004 By: Shannon & Wilson, Inc. 400 N 34th Street, Suite 100 Seattle, Washington 98103 21-1-20326-001 SHANNON &WILSON, INC. TABLE OF CONTENTS Page 1.0 INTRODUCTION .................................................................................................................. 1 2.0 SITE AND PROJECT DESCRIPTION ................................................................................. 1 3.0 SUBSURFACE EXPLORATION PROGRAM ................................................................... .2 4.0 GEOTECHNICAL LABORATORY TESTING ................................................................... 2 5.0 GEOLOGY AND SUBSURFACE CONDITIONS .............................................................. .3 6.0 SLOPE STABILITY .............................................................................................................. 4 6.1 Slope Stability Observations ..................................................................................... .4 6.2 Slope Stability Analyses ............................................................................................ .4 7.0 ENGINEERING CONCLUSIONS AND RECOMMENDATIONS .................................... 5 7.1 General ....................................................................................................................... 5 7.2 High-density Polyethylene (HDPE) Pipe Preparation ............................................... 5 7.2.1 Trench Excavations ...................................................................................... 6 7.2.2 Surface Water and Groundwater Control .................................................... 7 7.2.3 Pipe Bedding and Initial Backfill ................................................................. 7 7.2.4 Subsequent Backfill and Compaction .......................................................... 8 7.3 Wet Weather Conditions ............................................................................................ 9 7.4 Erosion Control ........................................................................................................ 1 0 7.5 Construction Monitoring .......................................................................................... 10 8.0 LIMITATIONS .................................................................................................................... 11 9.0 REFERENCES ..................................................................................................................... 13 LIST OF FIGURES Figure No. 1 Vicinity Map 2 Site and Exploration Plan 3 Generalized Subsurface Profile A-A' 4 Typical Tightline Anchoring Details (2 sheets) 5 Typical Pipe Trench Section Excavating Dry 21 ·1-20326-001 -RI .doc/wp/LKD 21-1-20326-001 TABLE OF CONTENTS (cont.) SHANNON &WILSON,INC. LIST OF APPENDICES Appendix A Subsurface Explorations B Geotechnical Laboratory Testing C Important Information About Your Geotechnical Report 21-.1-20326-001-RI.doc/wp/LKD 21-1-20326-001 11 SHANNON ~WILSON, INC. GEOTECHNICAL REpORT PARK PLACE NORTH STORM SEWER RENTON, WASHINGTON 1.0 INTRODUCTION This report presents the results of subsurface explorations, laboratory testing, and geotechnical engineering studies for a portion of the proposed Park Place North storm system project in Renton, Washington. The purpose of our geotechnical studies was to evaluate the subsurface conditions along the portion of the alignment that traverses the slope between an extension of Park Place North and the Belle Vista apartment complex, located down slope, and to provide recommendations for design of project elements associated with extending the pipeline down the steep slope. Our work was accomplished in general accordance with our scope of services outlined in the subconsuItant agreement, dated April 22, 2005. 2.0 SITE AND PROJECT DESCRIPTION The project is located near the top of a west-facing slope overlooking the southern end of Lake Washington, as shown in the Vicinity Map, Figure 1. The overall project involves extending an existing stormwater main southward, across the slope along Park Place North and then westward down a steep slope to connect with an existing storm system serving an apartment complex. We understand that the proposed pipeline will consist of a 12-inch-diameter, continuously fuse- welded, high-density polyethylene (HDPE) pipe. The portion of the proposed stormwater main that is aligned north-south extends along Park Place North and then along an existing utility easement that extends southward from the end of Park Place North. The utility easement lies along a narrow bench located on the upper portion of the overall slope. An existing sanitary sewer lies along the bench, parallel to the proposed alignment of the stormwater main. Several residences are located at the top of the slope east of the bench, upslope of the proposed storm system, and along Park Place North. Approximately 75 feet south of the end of the street pavement, the proposed storm line turns to the west and extends down a steep slope approximately 60 feet high that has an overall 21+20326-00I·RI.doc/wp/LKD 21-1-20326-001 1 SHANNON &WILSON, INC. inclination of about 32 degrees from the horizontal. The steep slope is wooded with small trees and brush. At the base of the steep slope, the ground flattens to a gentle slope and extends to a landscaped area and paved parking at the east edge of the Belle Vista Apartments. The steep slope portion of the site is shown in the Site and Exploration Plan, Figure 2. 3.0 SUBSURFACE EXPLORATION PROGRAM To evaluate soil conditions at the top of the steep slope near the location where a manhole would be needed, a boring was drilled to a depth of about 30 feet. The boring was drilled using a track- mounted rig under subcontract to Shannon & Wilson. To evaluate the thickness of colluvium on the steep slope, hand-boring probes were conducted using portable, hand-operated equipment. During the hand boring work, slope measurements were obtained to help construct a slope profile and to locate the borings. The locations of the borings are shown in Figure 2. The logs of the borings are presented in Appendix A. In addition to perfonning subsurface explorations at the site, we reviewed readily available infonnation from previous subsurface investigations in the vicinity of the site to help understand subsurface conditions at the site. We reviewed a Shannon & Wilson report for a geotechnical study previously conducted east of the site. We also reviewed the logs of wells in the vicinity of the site available on the website of the Washington State Department of Ecology. We reviewed a geotechnical report by another consultant for the apartment development down slope ofthe site, and we conducted a geologic reconnaissance of the slope in the vicinity of the proposed pipeline and the wooded slope south of the site to look for evidence of past slope instability or erosion and for visual clues about subsurface conditions. 4.0 GEOTECHNICAL LABORATORY TESTING Laboratory tests were perfonned on selected samples retrieved from the borings to detennine basic index and engineering properties of the soils present at the site. All geotechnical laboratory testing was perfonned in our laboratory in Seattle. The testing program included visual classifications, water content, and grain size analyses. All laboratory testing was performed in general accordance with the American Society for Testing and Materials (ASTM) standard test procedures. A brief description of the test procedures is included in Appendix B. 21·1·20326·001·RI.doc/wp/LKD 21-1-20326-001 2 SHANNON &WlLSON,INC. 5.0 GEOLOGY AND SUBSURFACE CONDITIONS The Puget Lowland has been glaciated as many as six times, the most recent between about 15,000 and 13,000 years ago in the central part of the lowland. The topography and near-surface geology in the vicinity of the site is largely the product ofthe last glaciation (Vashon Stade of the Fraser glaciation). Sediments deposited during or prior to the advance ofthe Vashon ice sheet have been overridden by as much 3,000 feet of ice and have been compacted to a very dense or hard state. Published geologic maps indicate that the hillside upon which the project is located is underlain by pre-Vashon sand and gravel outwash overlain by Vashon till. Soil exposures in 30- to 40-foot-high cuts in the hillside approximately 1,000 feet south ofthe storm sewer alignment reveal a surficial layer of till approximately 15 feet thick overlying outwash sand and gravel. These soil conditions are similar to those that underlie the site, based on the subsurface explorations performed at the site. Most of the steep slope portion of the alignment is underlain by very dense, gravelly, silty sand to silty, sandy gravel (till and till-like soils), as shown in the Generalized Subsurface Profile, Figure 3. The lowermost 15 vertical feet of the slope appears to be underlain by very dense, slightly silty to silty, fine to medium sand. The very dense soils are overlain by a relatively thin layer of less dense soils. The steep slope has a layer of less dense colluvial soils approximately 1 to 3 feet thick. Colluvium is the loosened rind of soil mantling most steep slopes, which has moved down slope from the force of gravity. This layer consists of soils similar to the underlying soils from which they were derived. The bench at the top of the steep slope, which the proposed pipeline will descend, is underlain by fill. The fill was likely placed from a combination of past site grading associated with the residential development to the east and north, and with the installation of existing utilities along the bench. The fill encountered in boring B-1 and hand borings HB-l and HB-2 generally consists ofloose to medium dense, gravelly, silty sand with scattered to numerous organics. Although not encountered, the fill may contain cobbles, boulders, and wood or other debris. No seepage or vegetation indicative of perennial seepage was observed on the slope during our reconnaissance; however, wet conditions were encountered in the lowermost hand boring, HB-7. The sand layer encountered in that boring is interpreted to be wet; however, because ofthe wet weather in the days preceding our hand boring work, the wet soils observed may only reflect surficial wet conditions and not that the entire sand layer is wet. The fill that underlies the bench 21·1·20326·00I-RI.doc/wp/LKD 21-1-20326-001 3 SHANNON &WILSON, INC. at the top of the steep slope and the thin layer of colluvium that mantles the steep slope are likely to be wet during periods of heavy precipitation. 6.0 SLOPE STABILITY Infonnation obtained from the subsurface investigation, laboratory tests, field observations, and measurements was used to evaluate the stability of the slope at the project site. Preliminary slope stability analyses were perfonned. These stability analyses included estimating the engineering properties of the slope materials, identifying the approximate locations ofthe failure surfaces, and analyzing factors-of-safety (stability factors) for slope stability. 6.1 Slope Stability Observations While on site to conduct subsurface explorations, we perfonned a reconnaissance of the site and vicinity to look for evidence of past landsliding or conditions indicative of marginal instability. In general, only minor bowing of scattered trees was observed on the slope, an indication that creep is not a significant process on the slope. Evidence of past landsliding on the slope was not observed in the vicinity of the alignment except near the base of the slope. What appeared to be scars of small slumps or set downs were observed at several locations along the lowennost portion of the slope, less than about 10 to 20 vertical feet above the parking areas along the eastern side of the Belle Vista Apartments. Approximately 1,000 feet south of the alignment, extremely steep soil exposures approximately 30 to 40 feet high were observed. These slopes are likely to be remnant cut slopes from a sand and gravel pit that once operated at this location. The slopes were estimated to be as steep as 70 degrees. Till overlying sand outwash was observed exposed on these bare faces, geology similar to that underlying the proposed alignment. No indications of instability were observed. 6.2 Slope Stability Analyses Stability analyses were conducted using the computer program PCSTABL5M1si. This program requires specifying the slope geometry, soil strength parameters, groundwater conditions, and instructions about critical slide plane searches. The analyses included perfonning a search for the most critical failure surface using the Modified lanbu method to detennine the stability ofthe existing slope. The effect of earthquakes was evaluated by calculating the factor-of-safety using the pseudo-static method. In the pseudo-static method, the earthquake inertial forces are 21-1-20326-001-RI_doclwp/LKD 21-1-20326-001 4 SHANNON &WlLSON,INC. included in the analyses by assuming that an equivalent static horizontal force approximates them. This horizontal force is equal to the weight of the assumed sliding mass of soil mUltiplied by a pseudo-static coefficient. Based on studies by Makdisi and Seed (1978), the appropriate pseudo-static seismic coefficient is equal to about one-half of the peak ground acceleration (PGA). A pseudo-static coefficient equal to 0.15g was used in the slope stability analyses. The stability program calculates the factor-of-safety against failure along either a specified slide plane or multiple potential slide planes. A factor-of-safety of 1.0 is generally considered marginally stable. Higher values indicate greater stability, and lower values indicate instability or sliding. Generally, a factor-of-safety against sliding under static conditions of at least 1.3 is desirable. A factor-of-safety of at least 1.1 under seismic loading conditions is a generally acceptable value. The results of our study indicate that a small amount of sliding may occur under seismic conditions. However, the analysis indicates that the movement would be surficial in nature (limited to the upper 1 to 3 feet on the steepest portion of the slope) and would not directly impact the at-grade pipeline at its currently proposed location. 7.0 ENGINEERING CONCLUSIONS AND RECOMMENDATIONS 7.1 General Based on the results of the subsurface explorations and our engineering analyses, we developed geotechnical recommendations to assist in the design of the proposed project. Based on our current understanding of the project, this report assumes that the pipeline for the majority of the alignment will be installed atgrade, with the exception of top and bottom of slope. The portion of the pipeline at the top and bottom of the slope transition to below grade and will be installed by trenching. Based on our slope stability analysis, it in our opinion that the slope could support the proposed stormwater pipeline and remain stable. The subsequent sections of this report present our conclusions and recommendations regarding on-grade pipeline, conventional trench excavations, pipe bedding and backfill, erosion control, and wet weather considerations. 7.2 High-density Polyethylene (HOPE) Pipe Preparation It is our opinion that because the proposed pipeline extends across steep terrain, it should consist of durable plastic pipe, such as HDPE pipe. The joints should also be durable and able to carry 21·1·20326·001·RI.doch";p/LKD 21-1-20326-001 5 SHANNON &WlLSON,INC. axial loads and accommodate flexural defonnation of the pipe. Welded or through-bolted, flanged joints are examples of suitable joints. The majority of the proposed pipe route will involve at-grade bearing of the pipe with no soil cover. This type of pipe support requires only removal of vegetation, debris, and any hard, sharp objects. The pipe should be graded to prevent sediment accumulation in the pipe that could eventually block or reduce its capacity. The pipe should be installed with an anchor system to prevent the line from being pulled part by soil creep or other gravitational effects and to allow regular inspection. Figure 4 (2 sheets) illustrates an example of a tightline anchoring system. The following sections present recommendations that are applicable to the top and bottom of slope portions of the proposed pipeline where belowgrade pipe installation occurs. 7.2.1 Trench Excavations We anticipate that the fill and ne~r-surface native soils observed in soil borings at the top and bottom of slope can be excavated using conventional excavating equipment such as rubber- tired backhoes or tracked hydraulic excavators. Excavation in such soils should not require unusual equipment or procedures. Excavation through underlying, very dense, till-like soil, however, may be more difficult, and the use of ripper teeth may facilitate excavation. In addition, cobbles and possibly boulders would be encountered in this glacial soil and the Contractor should anticipate their presence. Unshored temporary excavation slopes may be used where planned excavation limits will not undennine existing structures or extend beyond construction limits. The sides of the excavation should be sloped back as needed to provide a safe, stable slope. Consistent with conventional construction practice, temporary excavation slopes should be made the responsibility ofthe Contractor, since the Contractor is able to observe the nature and conditions of the subsurface materials encountered, including groundwater, and has the responsibility for methods, sequence, and schedule of construction. For planning purposes, and for excavations less than about 10 feet deep, we recommend temporary excavation slopes in the near-surface loose soils be no steeper than 1.5 Horizontal to 1 Vertical (1.5H:IV) and those in underlying dense to very dense soils be no steeper than 1 H: 1 V. Where less competent soils or seepage zones are encountered, flatter slopes may be required. Temporary shoring may be required for the trench excavation to protect existing utilities and structures and/or provided a work environment that compiles with applicable safety 21-1-20326-001-Rl.doc/wp/LKD 21-1-20326-001 6 SHANNON &W1LSON.INC. regulations. If instability is detected, slopes should be flattened or shored. For temporary shored excavations, construction practice in the Seattle area generally includes: trench boxes, interlocking steel sheet piles, a combination of soldier piles and horizontal lagging, and/or steel plates and internal bracing walers, although other methods of trench support are possible. For relatively shallow excavations (e.g., less than about 10 feet), a trench box is likely the most economical shoring system; however, it should be understood that a "standard" trench box does not usually provide adequate support of the trench excavation slope, but instead only provides safety for workers in the trench. Because the trench box typically is placed after excavation, a significant amount of soil deformation commonly takes place alongside the excavation limits. Ground movements can be severe, especially in the presence of groundwater and in near-surface or loose soils. The Contractor should be held responsible for all damages related to ground movements. Regardless of the construction method used, all excavation work should be accomplished in compliance with applicable local, state, and federal safety regulations. 7.2.2 Surface Water and Groundwater Control Temporary dewatering may be required for excavations made at the bottom of the slope. Based on the conditions we observed at the ground surface and in the explorations, it is our opinion that groundwater inflows should be relatively small, and excavations could be kept dry using sumps. If excessive and continual seepage is encountered during construction, a temporary interceptor trench located upslope from the trench excavation could be effective. All surface water should be diverted away from open excavations. 7.2.3 Pipe Bedding and Initial Backfill Normal pipe bedding procedures should generally prove satisfactory along the proposed stormwater drainage alignment. For conventional pipe installation, i.e., pipe that is not pile supported, disturbance of subgrade soils at the bottom of the trench excavation because of construction equipment and activities will affect support ofthe proposed pipe. It is anticipated that much of the soil exposed at the bottom of the excavations will be moisture sensitive and easily disturbed. The Contractor should take all necessary steps to protect the subgrade from becoming disturbed. The recommended typical pipe trench section for bedding and backfilling conventional pipelines in the dry are shown in Figure 5. Based on the soils encountered in the borings, the 21-1-20326-OOI-RI.doc/wp/LKD 21-1-20326-00 I 7 SHANNON &WILSON, INC. native soils are moisture sensitive and may become unstable in wet conditions. If these soils become unstable during excavation, they should be overexcavated and replaced with the recommended pipe bedding material. Bedding material for flexible pipe (HDPE) should be clean, granular materials meeting the gradation requirements specified in Section 9-03.12(3) of the 2004 Washington State Department of Transportation (WSDOT) Standard Specifications or equivalent. Bedding should be at least 4 inches thick below the invert of the pipe and extend up the haunches of the pipe to the 120 degree arc line of the pipe (a height above the invert equal to 0.25 times the outside diameter). Initial backfill material should meet the gradation requirements for granular bedding material. The bedding and initial backfill materials should be placed in loose lifts of 4 to 6 inches and carefully worked under and around the pipe by means of shoveling, vibration, trench tamping equipment, or other approved procedures. The bedding and initial backfill should be compacted to at least 92 percent of its maximum dry density (as determined by ASTM test designation: D 1557). Heavy mechanical compaction equipment should not be used over the pipe until the bedding material and initial backfill are at least 1 foot above the crown of the pipe. 7.2.4 Subsequent Backfill and Compaction All subsequent trench backfill where settlements are to be minimized should be structural fill. In general, we anticipate that most of the on-site soils to be excavated should be suitable for reuse as structural fill during dry weather provided it is free of organics, cobbles and boulders, debris, rubbish, and other deleterious material. Either selectively stockpiled, carefully segregated, on-site fill materials or imported structural fill may be used. If it is necessary to import structural fill, the imported material should meet the gradation requirements of Bank Run Gravel for Trench Backfill (WSDOT / American Public Works Association [APW A] 9-03.10) or an approved substitution. The Wet Weather Considerations section of this report presents recommendations for materials and construction procedures for wet weather or wet conditions, no matter what time of year. We recommend that subsequent backfill be placed and compacted in lifts with a I maximum loose thickness of 10 inches for heavy equipment compactors or 6 inches for hand- operated mechanical compactors. Trench backfill should be compacted to a dense and unyielding condition, and to at least 90 percent of the maximum dry density as determined by ASTM Designation: D 1557 (Modified Proctor) in nonstructural areas where post-construction 21-1-20326-00I-RI.doc!wpILKD 21-1-20326-001 8 SHANNON &WILSON.INC. settlements are tolerable. Backfill in areas underlying paved surfaces where settlements are not desirable should be compacted to at least 95 percent. 7.3 Wet Weather Conditions Wet weather generally begins about mid-October and continues through about May, although rainy periods may occur at any time of year. Some of the soil at the site contains sufficient silts and fines to produce an unstable mixture when wet. Such soils are susceptible to changes in water content, and they tend to become unstable and difficult or impossible to compact if their moisture content significantly exceeds the optimum. If earthwork at the site continues into the wet season, or if wet conditions are encountered, we recommend the following: 1. The ground surface in and surrounding the construction area should be sloped as much as possible to promote runoff of precipitation away from work areas and to prevent ponding of water. 2. Work areas or slopes should be covered with plastic. The use of sloping, ditching, sumps, dewatering, and other measures should be employed as necessary to permit proper completion ofthe work. 3. Earthwork should be accomplished in small sections to minimize exposure to wet conditions. That is, each section should be small enough so that the removal of unsuitable soils and placement and compaction of clean structural fill can be accomplished on the same day. The size of construction equipment may have to be limited to prevent soil disturbance. It may be necessary to excavate soils with a backhoe, or equivalent, located so that equipment does not traffic over the excavated area. Thus, sub grade disturbance caused by equipment traffic will be minimized. 4. Fill material should consist of clean, well-graded sand and gravel soil, of which not more than 5 percent fines, by dry weight, passes the No. 200 mesh sieve, based on wet-sieving the fraction passing the %-inch mesh sieve. The gravel content should range from between 20 to 60 percent retained on a No.4 mesh sieve. The fines should be nonplastic. 5. No soil should be left uncompacted and exposed to moisture. A smooth-drum vibratory roller, or equivalent, should roll the surface to seal out as much water as possible. 6. In-place soils or fill soils that become wet and unstable and/or too wet to suitably compact should be removed and replaced with clean, granular soil (see part 4). 7. Grading and earthwork should not be accomplished during periods of heavy, continuous rainfall. 2J·J·20326·00J·RJ.dociwp/LKD 21-1-20326-001 9 SHANNON &WlLSON.INC. 7.4 Erosion Control The Contractor should employ proper erosion control measures during construction, especially if construction takes place during wet weather. Covering work areas, soil stockpiles, or slopes with plastic; sloping; ditching; sumps; and other measures should be employed as necessary to permit proper completion ofthe work. Bales of straw and/or geotextile silt fences should be appropriately located to control soil movement and erosion. We recommend that areas disturbed by construction activities should be hydroseeded and covered with an erosion-control blanket. Following hydroseeding, the slope face should be covered with an erosion-control blanket. An erosion-control blanket is recommended to (a) protect the bare soil face against erosion until vegetation is established; (b) reduce runoff velocity for increased water absorption by the soil, thus promoting long-term survival of the vegetation cover; and (c) reinforce the root system of the vegetative cover. We recommend using a permanent erosion-control, turf-reinforcement mat consisting ofUV-stabilized synthetic fibers and filaments processed into a permanent, high strength, three-dimensional matrix. The placement ofthe erosion-control blanket should begin at the top ofthe slope (slope having a bare soil face) by anchoring the blanket in a 12-inch-deep by 12-inch-wide trench. The trench should be backfilled and compacted after stapling the blanket to the slope face. The blanket should then be rolled down the slope·. We recommend that the staples have a minimum length of 12 inches. Stapling the adjacent rolls ofthe blanket should be done in accordance with the manufacturer's recommendations. Periodic maintenance ofthe erosion control blanket should be anticipated until vegetation is well established. 7.5 Construction Monitoring We recommend that geotechnical monitoring, testing, and consulting be provided by a geotechnical engineer or the geotechnical engineer's representative during construction to confirm that the conditions encountered are consistent with those indicated by our explorations. Such activities would include observation and evaluation of structural fill placement and compaction, erosion-control measures, and other geotechnically related earthwork activities. The geotechnical engineer should also evaluate whether earthwork activities comply with the contract plans and specifications. If conditions encountered during construction differ from 21.1-20326-00I-RI.doc/wp/LKD 21-1-20326-001 10 SHANNON &WILSON,INC. those anticipated, the design may need to be revised to accommodate the conditions actually encountered. 8.0 LIMITATIONS This report was prepared for the exclusive use of Roth Hill Engineering Partners and the City of Renton for specific application to this project. It should be made available to potential contractors and/or Contractor for information on factual data but not as a warranty of subsurface conditions, such as those interpreted from the exploration logs and discussions of subsurface conditions included in this report. The analyses, conclusions, and recommendations contained in this report are based on site conditions as they presently exist and on the site and project descriptions as presented herein. We should be notified if differences are identified. We assume that the exploratory test borings and retrieved samples are representative ofthe subsurface conditions throughout the site; i.e., the subsurface conditions everywhere are not significantly different from those disclosed by the explorations. If, during construction, subsurface conditions different from those described in this report are observed or appear to be present during construction, we should be advised at once so that we can review these conditions and reconsider our recommendations, where necessary. If conditions have changed due to natural causes or construction operations at or adjacent to the site, it is recommended that this report be reviewed to determine the applicability ofthe conclusions and recommendations, considering the changed conditions and time lapse. Within the limitations of the scope, schedule, and budget, the analyses, conclusions, and recommendations presented in this report were prepared in accordance with generally accepted professional geotechnical engineering principles and practice in this area at the time this report was prepared. We make no other warranty, either express or implied. These conclusions and recommendations were based on our understanding of the project as described in this report and on site conditions as observed at the time of the exploration. Unanticipated soil conditions are commonly encountered and cannot be fully determined by a field reconnaissance or merely by taking soil samples or completing test borings. Such unexpected conditions frequently require that additional expenditures be made to attain a 21-1-20326-001-RI.doc/wp/LKD 21-1-20326-001 11 SHANNON &WILSON, INC. properly constructed project. Therefore, some contingency fund is recommended to accommodate such potential extra costs. The scope of our services for this project did not include any environmental assessment or evaluation regarding the presence or absence of wetlands or hazardous or toxic materials in the soil, surface water, groundwater, or air, on or below or around the site, or for the evaluation or disposal of contaminated soils or groundwater, should any be encountered. However, we will be glad to provide such services on request. Shannon & Wilson has prepared and included in Appendix C, "Important Information About Your Geotechnical Report," to assist you and others in understanding the use and limitations of our reports. JXM:TWH:TMG/twh 21 +20326-00J-R l.doc/wp/LKD 12 Thomas M. Gurtowski, P.E. Vice President 21-1-20326-001 SHANNON &WlLSON,INC. 9.0 REFERENCES American Society for Testing and Materials (ASTM), 2004, Annual book of standards, Construction, v. 4.08, Soil and rock (I): D 420 - D 5779: West Conshohocken, Pa. Makdisi, F.!., and Seed, H.B., 1978, Simplified procedure for estimating dam and embankment earthquake-induced deformations: Journal of Geotechnical Engineering, v. 104, no. GT7, p.849-867. Purdue University, 1988, PCSTABL5M/si A computer program for slope stability calculations, with STEDwin, version 2.7: Annapolis Engineering Software. Washington State Department of Transportation (WSDOT) and American Public Works Association (APWA), 2004, Standard specifications for road, bridge, and municipal construction (M41-1 0): Washington State Department of Transportation and American Public Works Association. 21-\ -20326-00 I-R l.doclwplLKD 21-1-20326-001 13 ..... o q ~ o ~ ..... . ~ o q ~ .., o ~ ~ ., o ~ 1/2 I Scale in Miles NOTE Map adapted from 1 :25,000 USGS topographic map of Bellevue South, WA; quadrangle, dated 1983. 1 I Park Place N. Storm Sewer Renton, Washington VICINITY MAP ! l June 2005 21-1-20326-001 SHANNON & WILSON, INC. FIG. 1 .! ~L-________________________ ~ __________ ~ ____ __ Geotechnical and Environmental Consultants File: J:1211120326·001121·1·20326-001 Fig 2.dwg Date: 06-02·2005 Author: SAC 1 L:·.·. "', /'~!I : L .. ~~') ( S Vv) " ,,' ;'". " j '~<,' t I '~"\~'! U U" '<. q '<" ~ " ~ 'CC '\\, , "', "'" • "'c" ' ';> C'j "" " " , I ' '" / .\~' :.~ \<:" '\ \. \ . , ,{ , :/'\, \ "'.." \ \ " \ l' \ V '" '-\ r~;· "\ \\ \ ~\>.'t\\} ~1tl~:v!~".,-£.\~\:::;=-, n~,.. \1 ~. ~,.~ , Ht¥!~ ~~ \' \ ,"-",'",. '. ' '\'\,," ~\\,~ \\ .. , ~, .-, . \ . -\-- ?Sc ".' ." (5 . N ~, " ~ \ \, "';.'0 '~, \ '~, NOTES 1. Base map taken from electronic file, "Copy of Renton Storm (base).dwg, Surveying and Steep Slope Design," prepared by Roth Hill Engineering Partners, LLC, dated 5-25-05 . 2. Boring locations were measured from existing site features and stationing stakes, and should be considered approximate. o 20 40 Scale in Feet B·1 ~ HB-10 AL LEGEND Boring Designation and Approximate Location Hand Boring Designation and Approximate Location Generalized Subsurface Profile (See Figure 3) iv: ~'" , "\~'{\:-~ ,}<> , .y,~ '\ . --; "\' \ ' \ , \ 'B.1\~ ( \ \ \ \ A' .S , t ... ~ \:,' ......... " 'f Park Place N. Storm Sewer Renton, Washington SITE AND EXPLORATION PLAN June 2005 21-1-20326-001 SHANNON & WILSON, INC. I FIG 2 Geotechnical and Environmental Consultants • File: J:1211120326·001121·1·20326·001 Fig 3.dwg Date: 06-03-2005 Author: SAC A West 180 160 .... (l.) Q) u. .5 § 140 ;; ~ Q) w 120 ! i Loose to medium dense, ! gravelly, silty SAND to ! . • ,Seepage !""""'" H ~ -4 I silty s~~iu:~:) to we~ ~xlstlng Ground ,Surface ~ 1 '\. ? . ? , Very dense, slighUy silty to silty, fine to medium SAND; wet; (OutWash) .. Very dense, gravelly, silty . SAND; moist; (Till) B-1 AI East Loose, slightly gravelly to gravelly, silty SAND; ll1()jstt0lYl!t;J~ill) ~"VJ.''''H~ 180 ? .74 Very dense. silty. sandy GRAVEL; moist; (Till) 160 .5 140 § ~ Q) w 120 100 I I 100 "'T'I ~ w 1 +80 1 +60 1 +40 1 +20 1 +00 0+80 0+60 0+40 0+20 Stationing LEGEND o 20 40 B 1 -Boring Desi~nation (Proj. ;5' N.) __ Projected Distance and Direction £5 -Standard Pentetration Test Blows/Feet 50/6'-Standard Pentetration Test Blowsllnches Driven ? ? Approximate Geologie Contact • Bottom of Boring 1. Scale in Feet Horizontal = Vertical NOTES The subsurface conditions indicated on the profile are generalized from materials observed in the borings. Variations between the profile and actual conditions may exist. 05.11.05 -Date of Completion HB-1 -Probe Designation ? I ? Approximate Geologic Contact • Bottom of Probe 2. Profile constructed from topographic survey provided by Roth Hill Engineering Partners, LLC, dated 5-25-05, and from measurements obtained In the field. Park Place N. Storm Sewer Renton, Washington GENERALIZED SUBSURFACE PROFILE A-A' June 2005 21-1-20326-001 SHANNON & WILSON, INC. FIG 3 Geotechnical and Environmental Consultants • ~ ~ '" .., o ~ ~ ~ .., o ( / Galvanized Steel Anchor Post or Chance Anchor ') Flow ~ 3/8" Diameter I -----V Galvanized ~ Steel Cables Transition from Below Grade to At-Grade ...... V2-Piece Band I~ ---Clamp Below (j ~ -r--------0 Each Joint and Every 20 Feet ~ 12-ln._ Min. Dia. V Pipe Joint Discharge to Catch Basin TYPICAL PLAN VIEW Not to Scale Park Place N. Storm Sewer Renton, Washington TYPICAL TIGHTLINE ANCHORING DETAILS ~ June 2005 21-1-20326-001 ~ ., SHANNON & WILSON, INC. I FIG. 4 .!! Geotechnical and Environmental ConsuHanls Sheet 1 of 2 ~L-________________________________________________ ~ ____________________ ~ __ ~~~~~ File: J:1211120326·001121·1·20326·001 Fig 4.dwg Date: 06-02·2005 Author: SAC ~." 1-NP a.,. N r NOTES 1. Place anchors below each pipe joint and not more than 20 feet apart. 2. Design ground anchors for the anticipated axial load, but not less than 5000 lb. 3. Contractor may propose an altemate anchor system for approval by the engineer. HDPE Pipe 12-ln. Diameter Existing 12-ln. Diameter Concrete Outfall Pipe 20-Ft. Max. ~ (TYP.) Ground Surface Chance Chain Shackle Band Clamp (TYP.) 3/8-ln. Diameter Galvanized Steel Cable TYPICAL CROSS SECTION Not to Scale Chance Anchor (TYP.) Park Place N. Storm Sewer Renton, Washington TYPICAL TIGHTLINE ANCHORING DETAILS June 2005 21-1-20326-001 SHANNON & WILSON, INC. Geotechnical and Environmental Consultants FIG.4 Sheet 2 of2 T"" i ~ C; :b N 8 Existing Ground Surface Subsequent Ba~Ckfill .::.;; .• . . "'." .. " ~ . .... : Initial Backfill I Granular Bedding (See text) NOTES Not to Scale 1. Granular bedding and initial backfill material should meet the requirements of WSDOT Section 9-03.12(3). Gravel backfill for pipe zone bedding. 2. Subsequent backfill should consist of select trench excavation material or imported granular material that meets the requirements (WSDOT/APWA 9-03-10). Restored Surface Trench Excavation Slopes and/or Temporary Support Systems are the Contractor's Responsibility Excavation Subgrade Park Place N. Storm Sewer Renton, Washington TYPICAL PIPE TRENCH SECTION EXCAVATING IN DRY ~ June 2005 21-1-20326-001 £f Bank run gravel for trench backfill. .:.; SHANNON & WILSON, INC. FIG. 5 .i!! Geotechnical and Environmental Consultants ~L-__________________________________________________ ~ ______________________ ~ __________ ~ SHANNON &WILSON,INC. APPENDIX A SUBSURFACE EXPLORATIONS 21-1-20326-001 SHANNON &WILSON, INC. APPENDIX A SUBSURFACE EXPLORATIONS TABLE OF CONTENTS Page A.I INTRODUCTION .......................................................................................................... A-I A.2 SOIL CLASSIFICATION .............................................................................................. A-I A.3 SOIL BORINGS ............................................................................................................. A-I A.3.I Drilling Procedures ........................................................................................... A-2 A.3.2 Soil Sampling ................................................................................................... A-2 LIST OF FIGURES Figure No. A-I Soil Classification and Log Key (2 sheets) A-2 Log of Boring B-1 A-3 Log of Hand Boring HB-l A-4 Log of Hand Boring HB-2 A-5 Log of Hand Boring HB-3 A-6 Log of Hand Boring HB-4 A-7 Log of Hand Boring HB-5 A-8 Log of Hand Boring HB-6 A-9 Log of Hand Boring HB-7 2 1-1-20326-OOI-RI·AAlwp/LKD 21-1-20326-001 A-i SHANNON &WILSON,INC. APPENDIX A SUBSURFACE EXPLORATIONS A.I INTRODUCTION The subsurface exploration program for the Park Place North stormwater project consisted of drilling and sampling one boring and seven hand boring probes. The approximate exploration locations are shown in the Site and Exploration Plan (Figure 2) in the main text of the report. The approximate locations of the subsurface explorations were determined by measuring from existing site features and stationing stakes present in the field. Elevations shown on the boring logs were estimated by plotting the exploration locations on a topographic plan provided by Roth Hill Engineering Partners, LLC, and are approximate. All the boring locations and elevations should be considered accurate to the degree implied by the method used. A.2 SOIL CLASSIFICATION An engineer from Shannon & Wilson, Inc. was present throughout the current field exploration period to observe the drilling and sampling operations, retrieve representative soil samples for subsequent laboratory testing, and to prepare descriptive field logs of the explorations. Soils were classified in general accordance with the American Society for Testing and Materials (ASTM) Designation: D 2488-93, Standard Recommended Practice for Description of Soils (Visual-Manual Procedure). The Unified Soil Classification System (USCS), as described in Figure A-I, was used to classify the soils encountered in the soil borings. The current boring logs in this report represent our interpretation of the contents of the field logs. A.3 SOIL BORINGS The subsurface explorations performed for this project consisted of drilling and sampling one boring using a track-mounted drill rig and advancing seven hand boring probes using portable, hand-operated equipment. The track-mounted boring is designated B-1 and was drilled to a depth of 31 feet. The hand borings are designated HB-l through HB-7 and were advanced to depths ranging between 1.3 and 4.5 feet. The track-mounted boring was performed on May 11, 2005; the hand borings were advanced on May 10 and 18,2005. The exploration logs are presented in Figures A-2 through A-9. 21-1-20326-00I-RI·AA/wp/LKD 21-1-20326-001 A-I SHANNON &WILSON,INC. An exploration log is a written record of the subsurface conditions encountered. It graphically illustrates the soils and geologic materials encountered in the boring and the uses symbol of each soil layer. It also includes the natural water content, if measured, and blow counts. Other information shown on the boring logs includes groundwater observations made during drilling, approximate ground surface elevation, and types and depths of sampling. A.3.1 Drilling Procedures Holt Drilling, a division ofBoart Longyear, of Fife, Washington, drilled boring B-1, under subcontract to Shannon & Wilson, Inc., using a track-mounted drill rig. Drilling was accomplished using a hollow-stem auger (HSA). HSA drilling consists of advancing continuous-flight augers to remove soil from the borehole. Soil samples are taken at the bottom of the boring by removing the center rod and lowering a split-spoon sampler through the hollow stem. Upon completion of drilling and sampling, the boring was abandoned in accordance with Washington State requirements. The spoils generated during drilling were drummed and removed from the site for disposal. A two-person crew from Shannon & Wilson, Inc. performed hand borings HB-l through HB-7 with portable, hand-operated equipment. The hand borings were used more as probes to evaluate the thickness of less dense colluvium overlying very dense soils than as borings to obtained subsurface soil samples. Hand borings HB-l through HB-4 were advanced with a hand auger and a split-spoon sampler. Hand borings HB-5 through HB-7 were advanced without auguring using a split-spoon sampler driven to refusal. The hand borings were terminated at shallow depths because of the very dense and gravelly nature of the soils. A.3.2 Soil Sampling Representative soil samples in boring B-1 were obtained in conjunction with the Standard Penetration Test (SPT). SPTs were performed in general accordance with ASTM Designation: D 1686, Standard Method for Penetration Testing and Split-Barrel Sampling of Soils. SPTs were generally performed at 2.6-foot intervals down to 30 feet, and then at 6-foot intervals. The SPT consists of driving a 2-inch outside-diameter (O.D.), split-spoon sampler a distance of 18 inches into the bottom of the borehole with a 140-pound hammer falling 30 inches. The number of blows required for the last 12 inches of penetration is termed the Standard Penetration Resistance (N-value). This value is an empirical parameter that provides a means for evaluating the relative density, or compactness, of granular soils and the consistency, or stiffuess, of cohesive soils. 21·1-20326-00I-RI-ANwp/LKD 21-1-20326-001 A-2 SHANNON ~WILSON.INC. These values are plotted at the appropriate depths on the boring logs included in this appendix. Generally, whenever 50 or more blows were required to cause 6 inches or less of penetration, the test was terminated, and the number of blows and the corresponding penetration was recorded. The N-values are plotted on the boring logs. To evaluate the relative density of soils encountered in the hand borings, Porter Penetration Tests (PPTs) were performed. The PPT is a modification of the SPT. The PPT consists of driving a I.S-inch O.D., split-spoon sampler a total distance of 18 inches into the bottom of the boring with a 4S-pound hammer falling 18 inches. The number of blows required to drive the sampler for each ofthe last two 6-inch increments are approximately equivalent to an SPT value. Hand borings HB-S through HB-7 were sampled using a modified PPT in that PPT N-values were recorded for each 6-inch increment while continuously driving the sampler. The sampler was emptied of accumulated soil for only the last sample increment to obtain a representative sample of the very dense soils underlying the layer of colluvium. The penetration resistance values were recorded by our field representative and are plotted on the boring logs. The SPT N-value and the equivalent PPT N-value are empirical parameters that provide a means of evaluating the relative density or compactness of cohesionless (granular) soils and the relative consistency (stiffuess) of cohesive soils. The terminology used to describe the relative density or consistency of the soil is presented in Figure A-I. The split-spoon sampler used during the penetration testing recovers a relatively disturbed soil sample, which is useful for identification and classification purposes. The samples were classified and recorded on field logs by our representative. The samples obtained from our borings were evaluated for potential contamination based on visual appearance and odor and then sealed in jars and returned to our laboratory for testing. 21-1-20326-001-RI-AAlwp/LKD 21-1-20326-001 A-3 -, a. (!) '" N M ~ en en « -' u Shannon & Wilson, Inc. (S&W), uses a soil classification system modified from the Unified Soil Classification System (USCS). Elements of the USCS and other definitions are provided on this and the following page. Soil descriptions are based on visual-manual procedures (ASTM D 2488-93) unless otherwise noted. S&W CLASSIFICATION OF SOil CONSTITUENTS • MAJOR constituents compose more than 50 percent, by weight, of the soil. Major consituents are capitalized (i.e., SAND). • Minor constituents compose 12 to 50 percent of the soil and precede the major constituents (i.e., silty SAND). Minor constituents preceded by ·slightly· compose 5 to 12 percent of the soil (i.e., slightly silty SAND). • Trace constituents compose 0 to 5 percent of the soil (i.e., slightly silty SAND, trace of . gravel). MOISTURE CONTENT DEFINITIONS Dry Absence of moisture, dusty, dry to the touch Moist Damp but no visible water Wet Visible free water, from below water table ABBREVIATIONS ATD At Time of Drilling Elev. Elevation ft feet FeO Iron Oxide MgO Magnesium Oxide HSA Hollow Stem Auger 10 Inside Diameter in inches Ibs pounds Mon. Monument cover N Blows for last two 6-inch increments NA Not applicable or not available NP Non plastiC 00 Outside diameter OVA Organic vapor analyzer PID Photo-ionization detector ppm parts per million PVC Polyvinyl Chloride SS Split spoon sampler SPT Standard penetration test USC Unified soil classification WLI Water level indicator GRAIN SIZE DEFINITION DESCRIPTION FINES SAND' -Fine -Medium -Coarse GRAVEL' -Fine -Coarse COBBLES BOULDERS SIEVE NUMBER ANDIOR SIZE < #200 (0.08 mm) #200 to #40 (0.08 to 0.4 mm) #40 to #10 (0.4 to 2 mm) #10 to #4 (2 to 5 mm) #4 to 3/4 inch (5 to 19 mm) 3/4 to 3 inches (19 to 76 mm) 3 to 12 inches (76 to 305 mm) > 12 inches (305 mm) , Unless otherwise noted, sand and gravel, when present, range from fine to coarse in grain size. RELATIVE DENSITY I CONSISTENCY COARSE-GRAINED SOILS FINE-GRAINED SOILS N,SPT, RELATIVE N,SPT. RELATIVE BLOWS/FT. DENSITY BLOWS/FT. CONSISTENCY 0-4 4 -10 10-30 30-50 Over 50 -~ am CJ [][] [JJ Very loose Under 2 Very soft Loose 2-4 Soft Medium dense 4-8 Medium stiff Dense 8 -15 Stiff Very dense 15 -30 Very stiff Over 30 Hard WEll AND OTHER SYMBOLS Bent. Cement Grout !,~~Y,,/ Surface Cement ~.,,,,. ;_v Seal Bentonite Grout -Asphalt or Cap Bentonite Chips 1!~!1 Slough Silica Sand ~ Bedrock PVC Screen Vibrating Wire SOIL CLASSIFICATION AND LOG KEY June 2005 21-1-20326-001 ~ SHANNON & WILSON, INC. I FIG. A·1 o GeoIechnicaI and Environmental Consultants Sheet 1 of 2 m~ __________________________________________________ ~ ________________________ ~ ____________ ~ ~ COARSE- GRAINED SOILS (more than 50% retained on No. 200 sieve) FINE-GRAINED SOILS (50",4, or more passes the No. 200 sieve) HIGHLY- ORGANIC SOILS UNIFIED SOIL CLASSIFICATION SYSTEM (USCS) (From ASTM 0 2487-98 & 2488-93) MAJOR DIVISIONS GROUP/GRAPHIC SYMBOL TYPICAL DESCRIPTION Well-graded gravels, gravels, gravel/sand mixtures,little or no fines Clean Gravels (less than 5% fines) '-' ~. Gravels GP 0 () or-Poorly graded gravels, gravel-sand ) "--mixtures, little or no fines (mom~an50% 1-____________ I--____ ~o~~~D __ ~------------------------~ of coarse ~ fraction retained al- an NO.4 sieve) Gravels with GM·!II ~~ Silts and Clays (liquid limit less than 50) Fines .~ ~ (more than 12% ~~ fines) GC (' ..... ~ Clean Sands (less than 5% fines) Sands with Fines (more than 12% fines) Inorganic ~ SW SP SM -.":: ." :- "." :--." " SC ML CL Silty gravels, gravel-sand-silt mixtures Cl.ayey gravels, gravel-sand-clay mixtures Well-graded sands, gravelly sands, little or no fines Poorly graded sand, gravelly sands, little or no fines Silty sands, sand-silt mixtures Clayey sands, sand-clay mixtures Inorganic silts of low to medium plasticity, rock flour, sandy silts, gravelly silts, or clayey silts with slight plasticity Inorganic days of low to medium plasticity, gravelly days, sandy days, silty days,lean days Organic OL ---_ _ Organic ~i!ts and organic silty days of _ low plastiCity Silts and Clays (liquid limit 50 or mom) Inorganic Organic Primarily organic matter, dark in color, and organic odor MH CH OH PT Inorganic silts, micaceous or diatomaceous fine sands or silty soils, elastic silt Inorganic day-? or medium to high plasticity, sandy fat day, or gravelly fat Clay Organic days of medium to high plasticity, organic silts Peat, humus, swamp soils with hi!ih organic content (see ASTM D 4427) NOTE: No.4 size = 5 mm; No. 200 size = 0.075 mm 1. Dual symbols (symbols separated by a hyphen, i.e., SP-SM, slightly silty fine SAND) are used for soils with between 5% and 12% fines or when the liquid limit and plasticity index values plot in the CL-ML area of the plasticity chart. Park Place N. Storm Sewer Renton, Washington SOIL CLASSIFICATION AND LOG KEY ~ 2. Borderline symbols (symbols separated by a slash, i.e., CUML, silty June 2005 21-1-20326-001 ~ CLA Ylclayey SIL T; GWISW, sandy GRA VEUgravelly SAND) ~ indicate that the soil may fall into one of two possible basic groups. SHANNON & WILSON, INC_ FIG. A.1 o GeoIechnicai and Environmenlal ConsuHants Sheet 2 of 2 mL-__________________________________________________ ~ ________________________ ~ __ ~~~~ __ ~ SOIL DESCRU .. ~N Surface Elevation: Approx, 176.0 Ft. Loose, brown, slightly gravelly to gravelly, silty SAND; moist to wet; scattered to abundant roots, wood, charcoal, and organics; iron-oxide staining; (Fill) SM. Layer of clean to slightly silty, fine to medium sand from 5 to 5.5 feet. £: a. Q) o ~~--~--------~--~~----~~------~8,O Very dense, gray-brown to brown, silty, gravelly SAND to gravelly, silty SAND; moist; scattered cobbles inferred from drill action; iron-oxide staining, slightly silty at 15 feet; (Till-like) SM. I-'-V'-e-ry-d-:-e-n-s-e-, -gr-a-y"""-b-r-ow-n,-s-i:-lty-,-s-a-n"""dy--=Gc=RA::-:-:-V-"E=-L,-----j 19.0 to silty, gravelly SAND; moist; iron-oxide stained locally, weathered gravels; scattered cobbles inferred from drill action; (Till-like) GM/SM. BOTTOM OF BORIN COMPLETED 5/11/200 ~ Note: Samples S-2, S-4, S-8, and S-9 had a -J ii faint hydrocarbon odor. ?5 ~ UJ (5 .0 E >-en '. '. '. " " '. '. " " .' " " '. en "'0 Q) ..... 0.. c: Q) :J iil E E S ro C> en 11 21 31 41 '" ~ 5I*;§ C> C .;: ::J 61 0 £: a. Q) o 0 5 Standard Penetration Resistance (140 lb. weight, 30-inch drop) .... Blows per foot w ~ w • 71 · . _~~ ____________ L.. ____ _ 65 50/6" 63 • 74 25--'-.---.. ------------., .------"'5014" · . 30 ------.-----------------------.--50/6" , , , . · . 35 '.. .-_ .. --------!-..... _.-,.--- 40 , ; : 1 45 -_________ L_. ________ ! ___________ _ ~ ~----------------------------~--~--~--L-------~-------L--------------~ N C) o -' II:: ~ VJ « LEGEND * Sample Not Recovered I Standard Penetration Test NOTES 1. The boring was performed using driUing methods, 2, The stratification fines represent the approximate boundaries between soil types, and the transition may be gradual. 3. The discussion in the text of this report is necessary for a proper understanding of the nature of the subsurface materials, 4, Groundwater level, if indicated above, is for the date specified and may vary, 5. Refer to KEY for explanation of symbols, codes and definitions, 6, uses designation is based on visual-manual classification and selected lab testing, o 20 40 • % Water Content Plastic Limit I • I Liquid Limit Natural Water Content Park Place N. Storm Sewer Renton, Washington LOG OF BORING 8-1 June 2005 21-1-20326-001 60 ~~------------------------------------------------------~--------------------------~-----------' ~ ~ (!) o --' SOIL DESCRIPTIO. _ §: "0 en "OL. §: Porter Penetration Resistance Q) .D Ci. c: Q) (40 Ib weight, 18" drop) .r. E ~ro .r. a. >. E ~~ a. A Blows per 6 inches Q) U) rn Q) Surface Elevation: Approx. 170 Ft. 0 U) 0 0 20 40 60 Loose to medium dense, brown, slightly CD , gravelly, silty SAND to silty SAND, trace of lG ~ a clay; moist; abundant organics; (Colluvium) CD c: SM. '--"§ 0 "0 2· .... ,-_. _._. .. ------... ~ .. -_.-w 1: '1 ~ n 0 .' . <D .6 c 3.5 0 -, Dense, brown, silghtly gravelly, silty SAND, z r 4.0 4 "n, '" ~~race of clay; moist; iron-oxide staining; : . .,'" scattered organics; (Till) SM. BOTTOM OF BORING COMPLETED 5/10/2005 6· .. -,._._. . __ .. --_ .. 8 ... . t·· ..... ... 10 121·--··-·.-------+---------.·- 14 ......... -.... --.-··-t·--·--.. -.... -.. -..... 16 -. ...... . .... ,..-. . .... 181·-··--------·+-·----·----~--.---- ~----------------------------------~--~--L-----L-------~--------~--------~--------~ LEGEND G Grab Sample I Porter Penetration Test Sample NOTES 1. The boring was performed using drifting methods. 2. The stratification lines represent the approximate boundaries between soil types. and the transition may be gradual. 3. The discussion in the text of this report is necessary for a proper understanding of the nature of the subsurface materials. 4. Groundwater level. if indicated above. is for the date spedfied and may vary. 5. Refer to KEY for explanation of symbols. codes and definitions. 6. uses designation is based on visual-manual classification and selected lab testing. o 20 40 • % Water Content Plastic Limit I • I Liquid Limit Natural Water Content Park Place N. Storm Sewer Renton, Washington LOG OF HAND BORING HB-2 June 2005 21-1-20326-001 60 on S2 ~ b (!) ~ z « I '" ii' (!) <D N M o N (!) o --' SOIL OEseRI IN g .c a. (J) Surface Elevation: Approx_ 146 Ft o Loose, gray-brown, silty, gravelly SAND, trace "\ of clay; wet; numerous roots and organics; r 0_8 \iron-oxide stained; (Colluvium) SM/GM_ '\ Very dense, gray-brown, gravelly, silty SAND;! 1_7 i \moist; iron-oxide stained; (Till) SM_ BOTTOM OF BORING COMPLETED 5/10/2005 LEGEND -0 .n E >-CJ) G Grab Sample 'Sl-GroundWaterLevelATD I Porter Penetration Test Sample NOTES 1. The boring was performed using drilling methods_ VI (J) 0. E co CJ) :1 2_ The stratification lines represent the approximate boundaries between SOIl types. and the transition may be gradual. 3. The discussion in the text of this report is necessary for a proper understanding of the nature of the subsurface materials. 4. Groundwater level. if indicated above. is for the date specified and may vary. 5. Refer to KEY for explanation of symbols. codes and definitions_ 6_ uses designation is based on visual-manual ctassification and selected lab testing_ -u C a; :J-o co (;s 'l- 0> & ~ 0> c: .§ 0 .c a. (J) o o Porter Penetration Resistance (40 Ib weight, 18" drop) A Blows per 6 inches 20 40 60 5015" 2 ---: ------;--------------------- 41----------------+-------------+----------1 61--------i--------------+----------- 8 ------------ 101--------------+--- 12f--------------~-----------f---------1 14--------------,------------------_-l-____ ------------- 16 -------,---------- 181----------+---------+----------- o 20 40 • % Water Content Plastic Limit I • I Liquid Limit Natural Water Content Park Place N_ Storm Sewer Renton, Washington LOG OF HAND BORING HB-3 60 June 2005 21-1-20326-001 ~ ~ SOIL DESCRIPTION g (5 en '0 ..... g er Penetration Resistance Q) .r= .0 Ci. C Q) .r= (40 Ib weight, 18" drop) E ::1--a. E o ro a. >-(5~ A Blows per 6 inches Q) en ro Q) Surface Elevation: Approx. 165 Ft. 0 en 0 0 20 40 60 Loose, brown to gray-brown, silty, gravelly r SAND; moist; (Colluvium) SM. ;5 2~ '" c: . ., :> a u '" '. 1: -_.- :ll 2.5 D Dense to very dense, gray-brown, gravelly, 0 '" l '. c: I\~ilty SAND; moist; iron-oxide staining; (Till) (I 0 -507lr r 3.3 z SM. BOTIOM OF BORING 4 ------i---------; . . COMPLETED 5/18/2005 .. _-----_._--------- 8 10--·--------.---------.,------------------. -. :~------.-.. ---.- 121----·-----.-'~-~---·.--~·-----.-1 , : 14 -.. ---...... ----.. 18 -------.;----- ~----------------------------~---l~L---~L-------~--------~--------~--------__I LEGEND I Porter Penetration Test Sample NOTES 1. The boring was performed using drilling methods. 2. The stratification fines represent the approximate boundaries between soil types, and the transition may be gradual. 3_ The discussion in the text of this report is necessary for a proper ·understanding of the nature of the subsurface materials. .4. Groundwater level. if indicated above, is for the date specified and may vary. 5. Refer to KEY for explanation of symbols. codes and definitions. 6. uses designation is based on visual-manual classification and selected lab testing. o 20 40 • % Water Content Plastic Limit I • I liquid Limit Natural Water Content Park Place N. Storm Sewer Renton, Washington LOG OF HAND BORING HB-5 June 2005 21-1-20326-001 60 SHANNON &WILSON,INC. APPENDIXB GEOTECHNICAL LABORATORY TESTING 21-1-20326-001 SHANNON &WILSON,INC. APPENDIXB GEOTECHNICAL LABORATORY TESTING TABLE OF CONTENTS Page B.l INTRODUCTION ........................................................................................................... B-l B.2 VISUAL CLASSIFICATION ......................................................................................... B-l B.3 WATER CONTENT DETERMINATIONS ......... : ......................................................... B-l B.4 GRAIN SIZE DISTRIBUTION ...................................................................................... B-l B.5 REFERENCE ................................................................................................................... B-2 FIGURE Figure No. B-1 Grain Size Distribution (B-1) 21.1.20326-001·RI·AB.doc/wp/LKD 21-1-20326-001 B-i SHANNON &WILSON,INC. APPENDIXB GEOTECHNICAL LABORATORY TESTING B.1 INTRODUCTION This appendix contains descriptions of the procedures and the results of geotechnical laboratory tests completed on the soil samples obtained from the recent explorations for the Park Place North storm. sewer project. The samples were tested to determine basic index properties and engineering characteristics of the site soils. Laboratory testing on recent soil samples was completed at Shannon & Wilson's laboratory in Seattle. D.2 VISUAL CLASSIFICATION Soil samples obtained from the recent explorations were visually classified in the laboratory using a system based on the American Society for Testing and Materials (ASTM) Designation: D 2487, Standard Test Method for Classification of Soil for Engineering Purposes, and ASTM Designation: D 2488, Standard Recommended Practice for Description of Soils (Visual-Manual Procedure). This visual classification allows for convenient and consistent comparison of soils from widespread geographic areas. The sample classifications have been incorporated into the soil descriptions on the exploration logs presented in Appendix A. D.3 WATER CONTENT DETERMINATIONS Water content determinations were performed in general accordance with ASTM Designation: D 2216, Standard Method of Laboratory Determination of Water (Moisture) Content of Soil, Rock, and Soil-Aggregate Mixtures, on all ofthe recently retrieved geotechnical soil samples. Water content is plotted on the log of boring B-1 presented in Appendix A as Figure A-2. Water content was not measured for the samples collected from the shallow hand borings. D.4 GRAIN SIZE DISTRIBUTION Grain size analyses were completed on a selected sample to determine its grain size distribution. The test was performed in general accordance with ASTM Designation: D 422, Standard Method for Particle-Size Analysis of Soils. The grain size analysis consisted only of the 21-1-20326-00I-RI-AB.doc/wp/LKD 21-1-20326-001 B-1 SHANNON &WILSON.INC. coarse-grained fraction of the sample, and the grain size distribution was obtained by sieving (sieve analysis). The grain size distribution was used to assist in classifying soil and to provide correlations with soil properties. The results of the grain size analysis are plotted on the grain size distribution curve presented in Figure B-1. Along with the grain size distribution is a tabulated summary containing the sample description and the natural water content. B.5 REFERENCE American Society for Testing and Materials (ASTM), 2004, Annual book of standards, Construction, v. 4.08, Soil and rock, (I): D 420 -D 5779: West Conshohocken, Pa., American Society for Testing and Materials. 2J·J·20326-00J-RI-AB.doc/wp/LKD 21-1-20326-001 B-2 -n ~ to I ~ .... J: <.!) jjj ~ >-co a:: w Z u::: .... z w U a:: w a.. BORING AND SAMPLE NO. • B-1, S-3 SIEVE ANALYSIS SIZE OF MESH OPENING IN INCHES NO. OF MESH OPENINGS PER INCH. U.S. STANDARD C:! 8 ~ ~ N -~Hl S ~ ::t 0 ~ 0 g -<0 ... '" N --... -... -100 \ 90 '- 80 ...... , ...... ...... 70 ...... ....... ....... ........ 60 """" ....... I"': ...... """ 50 ...... "-"-"- 40 ...... ........ 30 """" 20 10 0 g ~ ~ ~ g 0 g ~ o CD CD ... '" N ..... CC! "! ... '" N .0: ~ ~ ... - GRAIN SIZE IN MILLIMETERS COBBLES COARSE FINE COARSE MEDIUM FINE I GRAVEL SAND DEPTH U.S.C.S. SAMPLE FINES NAT. LL (feet) SYMBOL DESCRIPTION % W.C.% % 7.5 SM Light brown, gravelly, silly SAND 28.6 8.6 HYDROMETER ANALYSIS GRAIN SIZE IN MILLIMETERS ~ a s ~ ~ N ~ ~ '" N a C! C! C! 0 10 20 .... 30 J: <.!) jjj ~ 40 >-co a:: w C/) 50 a:: <1: 0 u .... z 60 W u a:: w a.. 70 80 90 100 ~ ~ ~ ~ ~ s ~ .., N ~ ~ ~ FINES: SILT OR CLAY PL PI Park Place N. Storm Sewer % % Renton, Washington GRAIN SIZE DISTRIBUTION' June 2005 21-1-20326-001 SHANNON & WILSON, INC. I FIG. B·1 ___ Conoultanll SHANNON &WILSON.INC. APPENDIXC IMPORTANT INFORMATION ABOUT YOUR GEOTECHNICAL REPORT 21-1-20326-001 5111 SHANNON Geotechnical a . 'ILSON, INC. nvironmental Consultants Attachr Date: To: o and part of Report 21-1-20326-001 June 6, 2005 Roth Hill Engineering Partners, LLC Mr. Erik Walgorski, P.E. IMPORTANT INFORMATION ABOUT YOUR GEOTECHNICAL/ENVIRONMENTAL REPORT CONSULTING SERVICES ARE PERFORMED FOR SPECIFIC PURPOSES AND FOR SPECIFIC CLIENTS. Consultants prepare reports to meet the specific needs of specific individuals. A report prepared for a civil engineer may not be adequate for a construction contractor or even another civil engineer. Unless indicated otherwise, your consultant prepared your report expressly for you and expressly for the purposes you indicated. No one other than you should apply this report for its intended purpose without first conferring with the consultant. No party should apply this report for any purpose other than that originally contemplated without first conferring with the consultant. THE CONSULTANrS REPORT IS BASED ON PROJECT-SPECIFIC FACTORS. A geotechnical/environmental report is based on a subsurface exploration plan designed to consider a unique set of project-specific factors. Depending on the project, these may include: the general nature of the structure and property involved; its size and configuration; its historical use and practice; the location of the structure on the site and its orientation; other improvements such as access roads, parking lots, and underground utilities; and the additional risk created by scope-of-service limitations imposed by the client. To help avoid costly problems, ask the consultant to evaluate how any factors that change subsequent to the date of the report may affect the recommendations. Unless your consultant indicates otherwise, your report should not be used: (I) when the nature of the proposed project is changed (for example, if an office building will be erected instead of a parking garage, or if a refrigerated warehouse will be built instead of an unrefrigerated one, or chemicals are discovered on or. near the site); (2) when the size, elevation, or configuration of the proposed project is altered; (3) when the location or orientation of the proposed project is modified; (4) when there is a change of ownership; or (5) for application to an adjacent site. Consultants cannot accept responsibility for problems that may occur if they are not consulted after factors which were considered in the development of the report have changed. SUBSURFACE CONDITIONS CAN CHANGE. Subsurface conditions may be affected as a result of natural processes or human activity. Because a geotechnical/environmental report is based on conditions that existed at the time of subsurface exploration, construction decisions should not be based on a report whose adequacy may have been affected by time. Ask the consultant to advise if additional tests are desirable before construction starts; for example, groundwater conditions commonly vary seasonally. Construction operations at or adjacent to the site and natural events such as floods, earthquakes, or groundwater fluctuations may also affect subsurface conditions and, thus, the continuing adequacy of a geotechnical/environmental report. The consultant should be kept apprised of any such events, and should be consulted to determine if additional tests are necessary. MOST RECOMMENDATIONS ARE PROFESSIONAL JUDGMENTS. Site exploration and testing identifies actual surface and subsurface conditions only at those points where samples are taken. The data were extrapolated by your consultant, who then applied judgment to render an opinion about overall subsurface conditions. The actual interface between materials may be far more gradual or abrupt than your report indicates. Actual conditions in areas not sampled may differ from those predicted in your report. While nothing can be done to prevent such situations, you and your consultant can work together to help reduce their impacts. Retaining your consultant to observe subsurface construction operations can be particularly beneficial in this respect. Page 1 of2 112005 A REPORTS CONCLUSIONS ARE PRELIMINARY. The conclusions contained in your consultant's report are preliminary because they must be based on the assumption that conditions revealed through selective exploratory sampling are indicative of actual conditions throughout a site. Actual subsurface conditions can be discerned only during earthwork; therefore, you should retain your consultant to observe actual conditions and to provide conclusions. Only the consultant who prepared the report is fully familiar with the background information needed to determine whether or not the report's recommendations based on those conclusions are valid and whether or not the contractor is abiding by applicable recommendations. The consultant who developed your report cannot assume responsibility or liability for the adequacy of the report's recommendations if another party is retained to observe construction. THE CONSULTANTS REPORT IS SUBJECT TO MISINTERPRETATION. Costly problems can occur when other design professionals develop their plans based on misinterpretation of a geotechnical/environmental report. To help avoid these problems, the consultant should be retained to work with other project design professionals to explain relevant geotechnical, geological, hydrogeological, and environmental findings, and to review the adequacy oftheirplans and specifications relative to these issues. BORING LOGS AND/OR MONITORING WELL DATA SHOULD NOT BE SEPARATED FROM THE REPORT. Final boring logs developed by the consultant are based upon interpretation offield logs (assembled by site personnel), field test results, and laboratory and/or office evaluation of field samples and data. Only final boring logs and data are customarily included in geotechnical/environmental reports. These final logs should not, under any circumstances, be redrawn for inclusion in architectural or other design drawings, because drafters may commit errors or omissions in the transfer process. To reduce the likelihood of boring log or monitoring well misinterpretation, contractors should be given ready access to the complete geotechnical engineering/environmental report prepared or authorized for their use. If access is provided only to the report prepared for you, you should advise contractors of the report's limitations, assuming that a contractor was not one of the specific persons for whom the report was prepared, and that developing construction cost estimates was not one of the specific purposes for which it was prepared. While a contractor may gain important knowledge from a report prepared for another party, the contractor should discuss the report with your consultant and perform the additional or alternative work believed necessary to obtain the data specifically appropriate for construction cost estimating purposes. Some clients hold the mistaken impression that simply disclaiming responsibility for the accuracy of subsurface information always insulates them from attendant liability. Providing the best available information to contractors helps prevent costly construction problems and the adversarial attitudes that aggravate them to a disproportionate scale. READ RESPONSIBILITY CLAUSES CLOSELY. Because geotechnical/environmental engineering is based extensively on judgment and opinion, it is far less exact than other design disciplines. This situation has resulted in wholly unwarranted claims being lodged against consultants. To help prevent this problem, consultants have developed a number of clauses for use in their contracts, reports and other documents. These responsibility clauses are not exculpatory clauses designed to transfer the consultant's liabilities to other parties; rather, they are definitive clauses that identify where the consultant's responsibilities begin and end. Their use helps all parties involved recognize their individual responsibilities and take appropriate action. Some ofthese definitive clauses are likely to appear in your report, and you are encouraged to read them closely. Your consultant will be pleased to give full and frank answers to your questions. The preceding paragraphs are based on information provided by the ASFE/Association of Engineering Firms Practicing in the Geosciences, Silver Spring, Maryland Page 2 of2 1/2005 INTERFUND TRANSFER JUN 2 8 ~. RECEiV£:i/ Transfer Number: -------Date: ~ / 2,<; Io~ I I Department To Be Charged (Transfer Out -From)_.:....P+,I_t3--/-!_'o'_'?J ________ ,: Description Account Number WO/Function Amount IV UfL ..sT /f~ ?~ 1J qu,QJ(X"CD,0/8. ~~~638 £rs t,~/.57oJD I~·ov ~ ~~~ ~.Al\(ZJ-c:;;-n £J ~ ~3C:> I T ..--, /J ;V~f II) Department Authorization: ~7 {j' l Department To Be Credited (Transfer In -TO)_P-t,!t....;;B~f-~-~_--W-'40-6----0....;;.8-0---: Description Account Number G!(j·flm~ ~H'AA1 ~ {JttJ ~ 3t.tS, 'i J , OJ. O()O::f- WO/Function Amount SDlo Lt7CXJ,MJ Distribution: White: Finance Department Yellow: Department to be Otarged Pink: Department to be Credited Tinted: 06-28-2005 Payment Made: ITY OF RENTON 1055 S. Grady Way Renton, WA 98055 Land Use Actions RECEIPT Permit#: LUA05-080 06/28/2005 05:28 PM JUN 2 8 20U.5 fi Receipt Number: R0503463 Total Payment: 1,000.00 Payee: INTERFUND TRANSFER FROM SURFACE WATER Current Payment Made to the Following Items: Trans Account Code Description Amount 5010 000.345.81.00.0007 Environmental Review 1,000.00 Payments made for this receipt Trans Method Description Amount Payment lOT D CAREY 1,000.00 Account Balances Trans Account Code Description Balance Due 3021 303.000.00.345.85 Park Mitigation Fee 5006 000.345.81.00.0002 Annexation Fees 5007 000.345.81.00.0003 Appeals/Waivers 5008 000.345.81.00.0004 Binding Site/Short Plat 5009 000.345.81.00.0006 Conditional Use Fees 5010 000.345.81.00.0007 Environmental Review 5011 000.345.81.00.0008 Prelim/Tentative Plat 5012 000.345.81.00.0009 Final Plat 5013 000.345.81.00.0010 PUD 5014 000.345.81.00.0011 Grading & Filling Fees 5015 000.345.81.00.0012 Lot Line Adjustment 5016 000.345.81.00.0013 Mobile Home Parks 5017 000.345.81.00.0014 Rezone 5018 000.345.81.00.0015 Routine Vegetation Mgmt 5019 000.345.81.00.0016 Shoreline Subst Dev 5020 000.345.81.00.0017 Site Plan Approval 5021 000.345.81.00.0018 Temp Use or Fence Review 5022 000.345.81.00.0019 Variance Fees 5024 000.345.81.00.0024 Conditional Approval Fee 5036 000.345.81.00.0005 Comprehensive Plan Amend 5909 000.341.60.00.0024 Booklets/ElS/Copies 5941 000.341.50.00.0000 Maps (Taxable) 5954 604.237.00.00.0000 Special Deposits 5955 000.05.519.90.42.1 Postage 5998 000.231.70.00.0000 Tax Remaining Balance Due: $0.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 I o LO CO C\J I ....... C\J I 0.. 3: C/) / / / \. / / / '--- 1221 N 26th St 1301 N 26th St I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 2515 Park PL N 2511 Park PL N EASEMENTS 20' 40' 2520 2417 2411 I I (j)1 (j)1 ~~--,~ ... _~. ____ ... M_. _ _ __ ;:-..• _ _... _._, ______ ._. Park PL N Garden CT N Garde CT N ro l xl wi Garden crN-' -----. ----.:0'" r-, ' > '" I I I ---"-----1 I 7----__ , --------~~-- 2415 Park PL N I-+'--l-I ' 10'WIDE EASEMENT J I , I I I' C, I I ' I' I I f 2507 ~ _____ --~------, I I ------..---- I I ~~\cr I , , : ---- ----- LEGEND Park PL N --- ----- i \ (""'" I I --1-,iI'-- I ; e-]!EPlACEMENT STORM SYSTEM .;;.;-:--POSSIBLE STORM SYSTEM EXTENSION 0---SYSTEM --- '" c :J t' '" "-e 0.. -----,!<:>'" L--~--- SURVE'YED: SCIU: t====t================================t====t:===t====t~~~~~RO:~~H~ILL~EN~G~Rs1 Dwe owe -~--~--------------------------------~--~----t---~ Dwe/~s NO, REVISION BY DATE APPR -RJS As Noted ONE INCH AT FUU. SCH.E F NOT ONE ItCH SCAL£ iIiXORDINIl.Y , I , I .1 . -',. :-,--:, 10' WIDE UTILITY AND PSP&L EASEMENT '-----~-------------------- .@ ~ / ~--.--- ---------- , ~~ -~--' t-§-8--~~~ ABC)v;E GROUND STORM LINE ,--...-::~ R~I~~~IS~H~RUBS,SMALL TREES A ABOUT 4' TO 6' WIDE .?---- ,!-- :t""--- A A U---------,," ~-~ ~~~'_~ __ -~~~j 3---- .-;'f----- ~"',;"~i---i:~vr -, ~" - ,-1,"'" I r, , RESTORE LA/'tlDEiCAPING AFTER COI)lSTRI CITY OF RENTON ~' I I CONe. PAD / I I ------~ L ---- --W-JI I "----J -..-..~ I - ~--j.--REMOVE SHRUBS AND SMALL TREES STORM LINE I I I I I I I I NOTE -SLOPE IS COVERED WITH SHRUBS AND SMALL TREES LESS THAtL __ ,~ 6-INCHES IN DIAMEJ"ER--~----~- A~Cl-EARE[fFOR THE NEW STORM ONE WILL BE RESTORED WITH GRASS, , N 26TH ST / PARK PL N STORM SYSTEM PROJECT 'J----- .,," 6/27/05 Planning/Building/Public Works Dept. I I SEPA TREE CUTTING PLAN -"'" 2 stUT: or: 2 2 D-2850xx u IrD leo .. 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