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HomeMy WebLinkAboutSWP272011(4) L ureen Nicolay * BULLI A ociate Planner ♦ ♦ D elopment Services Division PL NNING/BUILDING/ BAILE PU LIC WORKS DEPARTMENT PEIVDI ��N�o� 6)235-2550/TDD: 277-4439 HMI ® i00 Westlake Office Tower Fax(206)386-5130 01 Fifth Avenue Cable Address Sealaw f !attle.WA 98101-1618 _ A T T 0 I Municipal Building 200 Mill Avenue South 06)292-8930 ington 98055 FAXa(206)235-2541 BARBA Direct Dial(206) I 70- November 24 , 1993 i I i Mr. Gregg Zimmerman Utilities Systems Director City of Renton Department of Public Works 200 Mill Avenue South Renton, WA 98055 Re: Public Records Request Site: PACCAR Defense Systems/Pacific Car & Foundry 1400 North 4th Street, Renton, WA 98055 Dear Mr. Zimmerman: This is a public records request pursuant to the Freedom of Information Act and the applicable laws and regulations of the State of Washington. We represent Continental Insurance Company and Harbor Insurance Company involved in litigation in Washington State with PACCAR, Inc. successor in interest to Pacific Car and Foundry, Kenworth Motor Truck Company and Peterbilt Motors. This litigation is related to PACCAR's liability for environmental conditions at the site., including: 1. Investigation, citations, enforcement actions, violations of federal, state or local ordinances, laws or regulations; 2 . Current and past waste disposal or storage practices, both on and off-site; 3 . Contamination or pollution of air, land, surface or underground water. 4 . Clean-up and remediation; i ii ( .vcnv�vlJJ rnifr""MAN - _ Mr. Greg Zimmerman November 24, 1993 Page 2 5. Site operations history including any photographs, maps of diagrams of the site; all 6• Any and all documents and files re PACCAR, Pacific Car & Foundry, or its subsidiaries ' involvement at the site; 7. Citizen complaints and actions; and 8 • Application/issuance/revocation of permits. If documents that may be responsive to this request are kept jj in specific divisions, please forward this re quest Also, should your agency archive responsive documentscondingly. microfiche, microfilm or in hard co request to archives. PY, Please forward this Thank you in advance for your prompt response to this request. We are prepared to reimburse your department for photocopying charges. Please call me at 521-6475 if I can clarify this request or be of any assistance. Very truly yours, BULLIVANT, HOUSER, BAILEY, PENDERGRASS & HOFFMAN By: Barbara Fairleigh Paralegal to Steven W. Edmiston cc: Steven W. Edmiston Tamara Warren Carmen Edwards F:\CLIENTS\3345\6\LETTERS\BAF127 i I i i 'f HOUSER STORM SEWER BYPASS DRAINAGE REPORT SSOE, INC. JANUARY 22, 1992 t„ •�oaoeaye! � `S eC'✓ r '���eeeeoe CRY OF wwroN RECEIVED �� ,1AN 2 2 1992 BUILDING DIVISION s z TABLE OF CONTENTS PROJECT NARRATIVE 100 - 102 HYDROLOGY 200 - 213 PIPE HYDRAULIC DESIGN 300 - 306 PONDING VOLUME ANALYSIS 400 - 406 ORIFICE & SPILLWAY SIZING 500 - 504 .. .... ............... ... .... HQtJS)8R !SQ1ZM S1tBR BYPASS S501r JOB NO 915006 RENTON W ASHINGTON JANUAKY 22, 1992... DRAINAGE REPORT FOR HOUSER STORM SEWER BYPASS RENTON, WASHINGTON PREPARED BY SSOE INC. JANUARY 22, 1992 GENERAL: This project is to reroute an existing storm sewer that traverses the PACCAR defense systems site in north Renton. The realigned sewer will convey storm water from the public system at the intersection of N. 4th Street and Houser Way N. to the public system at N. 8th Street and Garden Ave. N.. The new development will not change the character of the existing drainage basin as no new impervious surfaces will be constructed. As explained in the Final Environmental Impact Statement (FEIS) for the proposed truck plant, there is some contamination of the soils and groundwater at the site. This condition will require the use of special remediation techniques during construction as described in the FEIS. In addition, the overflow pond will be lined and all piping will be gasketed to provide a reasonably secure separation of the storm water system from the site soils and groundwater. CORE REQUIREMENTS: Core Requirement #1: Discharge at the Natural Location The system will discharge water to the existing public system at the intersection of N. 8th Street and Garden Ave. N.. Core Requirement #2. Off-site Analysis Upstream Drainage System: The drainage basin for the system is located to the southeast of the PACCAR site and is about 38 acres in size. No evidence of flooding was observed in the upstream basin. Downstream Drainage System: The downstream drainage system is a piped conveyance system that flows north in Garden Ave. North. Starting at the intersection of 8th Ave. N. and Garden Ave. North there is 383 feet of 48" diameter pipe at an adverse slope followed by 409 feet of 48" diameter pipe. The remainder of the pipe within 1/4 mile of the site is 54" diameter pipe. 101 XX HOUSER STQ tM SEWER BXPASS » >.>. ::. SS�?E jOB N0 915006 RENTOI`J . SHINGTON... ...... ..; >.; > ::'::'..:: :'': ''.:;::.' >> <>''>::;<:<:... ANUARY 22 .::::::::::::.::::::.::::::::::: :::::::::::::::::::::::::::::::..::.:::::::::.::.::::.: ::::.:.::::::::::::::::::::::::::,:::::::.. .:. :::::::::::::::::::.:.......::199 :::::. There is no visible evidence of flooding within 1/4 mile of the site. However, based upon historical knowledge and discussions with officials of the City of Renton there is roadway flooding within the downstream drainage areas and adjacent to the project site during major storm events. Detailed analysis by ENTRANCO Inc. indicated a tailwater elevation of about 28.0 for the existing conditions. Improvements to the downstream conditions are being planned. Core Requirement #3: Runoff Control The development does not increase the amount of impervious area for the tributary basin. However, a temporary restriction is provided to match flows to the capacity of the piping system being replaced to avoid overtaxing the downstream system until it is upgraded. An overflow is provided at the restriction to allow the water that backs up to escape. The overflow water will flow overland to the existing ponding area at the north west corner of the site. Site grading is also being performed as part of the site development. No filling will be performed in parts of the site before May 15 to maintain a ponding area greater in volume than the existing ponding volume. The downstream improvements are necessary for the proper functioning of the system subsequent to filling the site. No biofiltration facilities are provided because the system merely conveys water that is collected off-site. Core Requirement #4: Conveyance System The conveyance system is designed to the standards of the King County Surface Water Design Manual (KCSWDM). The piped system is designed for the full basin flow to allow the removal of the temporary restriction when the downstream system is upgraded. Core Requirement #5: Erosion and Sedimentation Control Plan Erosion and sedimentation will be controlled by sloping the disturbed areas to the trench excavation. Water collected from the excavation will be pumped into tanks, tested and conveyed to the sanitary sewer system. Disturbed areas will be protected and reseeded as required by the KCSWDM. 102 Title Sheet No. of By / I Chk. / / Job No. SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 • Bellevue, Washington 98004 Fax 206.827-8412 • 206-827-2950 f-� Y D2OLOUY cn t, i-all t � _ o-v'tt t-l.Yll Y/t -fYll __ i-fa•ll t-f7t1 hKY G f711 • �'+r 1 N -fYll [-frll IFfYl1 ,-f7lt 3 ►-frll! t-fail t-frlt l-rYlt It n it twit f-Wil 1-frll- 7-tYll L T-1d1 f1-}Ylt -utt i-ta'et 1-Wit G-CYLI / t -p'tl t is f-{Ytl Ittti ,°�6- t-sYn t-sYn h' It (G-trt 1 , t-Crtl — -aYu o-trt l r t JU I-cy. 1-L/fl -tit 1 [I-t7L1 I-C7I l _ CY11 wltl �f Ca r vYl t-,/l "l t-,Ytl yt y 1 ► t1/ i-tJ/l �l 1J% t-tYl _ 1-117 /l "fit 31-0 fit J-41rL 1 _ __ t-1l11 f-IY/l -wit N -- -- l-1ltl .- It -,Yll -f Ytt . � - 1-,1YIf f<1 •� >--tJtl ttJtt [ ,-ult ------ — Yv- a�I i p� InA[Jt is — IVrYll � 1 Qb (�) h ll G-t7U t-CYIi • 0 1 l tl -- .. trC7t1 F Ovoco #-wit ct t zttt tut o N � •. --,t... ro Wit ----- -- 1 1M t-ilif Q I- 01,4 _ c Y c-art r > [-ofit - tt c-lrit _ •�; ►-tm 1 I t-trn � / fi-1t71 (p rt»I ►- tt _L91 11 ; G t-L tml 1 �_tJrl u•il 1 kn rum i t fnl t, Irn t t � i-f fil 1-ltT 1 ' 1-flfil h1f'il \ , f/'flit mfa•il t \ ►-fa7t •l ' Title ,/ ����-�•J Sheet No. of By f T / 117 Chk. / / Job No. SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 Bellevue, Washington 98004 Fax 206-827-8412 206-827-2950 �/tLlt�uGG / i /ft1_ 1,5 ILI '7� Pz � 2 ` y2 �, lS�Z56 � r 1, 3 Z ( / 4) ' ' �q C > �sz 2 7 V k 3 2 7" (02 20 3 sew L 3 . 38i �` } • :, ��, . 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OF e ENTRANCO ENGINEERS, INC. JOB NO. -A L 3 - PROJECT (imx-tit-i &IF 1oa— CALCULATIONS FOR.-- MADE BY DATE lb 111 qj CHECKED BY DATE - Favibus AreA_ 7 v-re,s C�1 gp C,A) Title Sheet No. of By / / Chk. / / Job No. SSOE, Inc. • 3015 112th Avenue, N.E., Suite 101 • Bellevue, Washington 98004 Fax 206-827-8412 • 206-827-2950 SS66 G �� :�->s '17� 1 - '�(O S /Ir�QX 71 C -y r A0 2 SBUH/SCS METHOD FOR COMPUTING RUNOFF HYDROGRAPH STORM OPTIONS: 1 - S.C.S. TYPE-lA 2 - 7-DAY DESIGN STORM 3 - STORM DATA FILE SPECIFY STORM OPTION: 1 S.C.S. TYPE-lA RAINFALL DISTRIBUTION ENTER: FREQ(YEAR) , DURATION(HOUR) , PRECIP (INCHES) 2 24 2 ---------------------------------------------------------------------- ******************** S . C. S. TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 7, 80, 31, 98 , 18 DATA PRINT-OUT: �/VTJ2�4-A1 C/O AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTE 00-SiAJ Va-L fig' A CN A CN 38 . 0 7 . 0 80 . 0 31 . 0 98 . 0 18 . 0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 12 .94 7 . 83 213377 ENTER [d: ] [path] filename[ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: temp[ FILE ALREADY EXIST; OVERWRITE (Y or N) ? y Write protect error writing drive B Abort, Retry, Ignore, Fail? r SPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP c ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 2 17 . 9 , 77, 20. 1, 98 , 15. 3 DATA PRINT-OUT: E14 � �A fOLJ AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)CN A CN UIa.S 38. 0 17. 9 77 . 0 20. 1 98 . 0 15. 3 uF_DU O PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 9.22 7 .83 158245 ENTER [d: ] [path] filename[ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: temp .SFEC11-Y STORN UPTION: 2 �5 S.C. S. TYPE—lA RAINPkLL DISTRIBUTION "NTER,. • MEM('i EAR) . DURAT 1014 t HOUR) . PREC I P (INCHES) "0,24,3. r 3.C_ S. T'YF'E—IA riI�7RIAUTIOiJ •t+F+�a► — xii-1t�tiElFJf �E iFiriryr 100--YEAR 24—HOUR STORM +--fi+►- 7. 9G" TOTAL r ZECIH. �F♦F��ti�+F*+i—+r ENTER; A(DERV) . C1J (F ERY) . A (I FIFA F:4') . Clq k I F-10tV) . .TC FOR SAS I N 140. 1 7.80.31 .98, 18 DATA PR 1 N T-GUT: AREA (ACFEE) PERVIOUS IMPERVIOUS' TC (MINUTES) A CN A CN 38. 0 7- 0 80. 0 .31 . 0 98. 0 18. 0 . PEAK-Q (CF5) T--PEAK (HRS) VOL (CU-FT) 27.86 7. 83. 461054 ENTER C d: J [oath 3 f i 1 en=.me C .ax t J FOR STORAGE OF COMPUTED HYDROGRAPH: A: XNEW100. HYD 1 i in v- ctv44- vatva Ictvvat:r q- itvetstvgt %rer4vvvvvvvhuJ V v Vv u C? 11 . . , . T . . . . . . . . 0 . . . . • . • . . . . . . , . 0 . . . 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OhNO h O ul O `-+ th0 -0410 •+ t) h7 .0CD0 c• 1'itn -OmO -+ r DU a07O -0M0 0 ,0M0 .4 L. tr . . . . . . . . . . . . . . . . . 4 U f� __ -+ -1 ,-4 H •-i •, N N N N PI 14 N tom, 1•) t', M M M -tt tt tt d' d' ft h'l 10 In ►O V) In -0 ,0 W �' - Title -- ~•----- Shoet No. 4 of 5 By I I Chk 1 1 Job No- SSOE, Inr- 1001 Mad*twn Avenue Toledo, Ohio 43824 Fax (419) 219—"101 • (419) 255-3830 SPECIFY STORM OPTION: 1 B.C.S. TYPE—IA RAINFALL DISTRIBUTION ENTERS FREQ (YEAR) . DURATION(HOUR) . PRECIP (INCHES) 25,24,3.4 +rww+r+r+� � +f+H► S.C. S. TYPE-lA DISTRIBUTION 25-YEAR 24-HOUR STORM ** .5. 40" TOTAL PRECIP. * * ENTERS A (PERV) , CN (PERV) , A (IMFERV) T CN ( IMPERV) . TC FOR BASIN NO_ 1 7.a0.31 ,9a. ia DATA PRINT—OUTt AREACACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN Z. 0 7_0 130. 0 Z1 . 0 96.0 12. 0 PEAK--Q(CFS) T—PEAK(HRS) VOL(CU—FT) 23.99 7.93 394699 I ENTER Cdt7 [oath]+ilonamaC. mxt3 FOR STORAGE OF COMPUTED HYDROORAPHt } AtXNEW025.HYD 1 1 Qjt• r$PECIFY:�C - CONTINUE. N - NEWSTORM_: P - PRINT. S - STOP P HYDR08RAPH DATA PRINT-�-OUTz r'll-IRS) Q (CFS)• T(HRS) Q(CF6) ` T(HR6)• Q(CFS) T(HRS) * Q(CFS) .00 .00 6.33 5. 93 12. 67 '5_01 19.00 2.97 . 17 .00 6.50 6.01 12. 83 4. 65 19. 17 2. 97, .33 .00 6.67 6.62 13. 00 4_44 19.33 ` 2.97 .50 . 03 6.83 7.54 13_ 17 4.32 19.50 2:9; .67 . 15 7.00 8.09 13.33 4.26 19.67 2:9 . E33 .33 7. 17' 9. 10• 13.50 4.22' 19.83, 2. 9 1.00 .52 7.33 10.37, 13_67 4.20 20.00 2.9E 1. 17 .71 7.50 13.50' IS.Ei3 4. 19 20. 17 2.9E 1.33 .88 7.67 20. 72 14.00 4. 19 20.33 2.9E 1.50 1 .04 7. 83 23.89. 14. 17 4. 19 20.50• 2.9E 1.67 1.26 8. 00 20.37 14.33 4. 19 20.67 2..-9E 1. ez 1.52 8. 17 16.29 14. 50 4. 19' 20.83 2.9E 2.00 1.72 9.-3:3 13.31 14.67 4.08 21. 00 .2.9E 2. 17 1 .E39 S.50 11.64'' 14. B3' 3. 91 21. 17 : 2.9E 2.33 2.03 8. 67 10. 00 15.00 3.81 21.33 2.9E 2.50 2. 14 8.83 8. 37• 15. 17 3.75 21 . 50 2. 9E 2.-67 2.34 2.50 2. 14 9. 93 8. 37 15. 17 3.75' 21 50 2. 9E 2.67 2.34 9. 00 7.45 15.E *3.72 21.67 2.9E 2.83 2.60 7. 17 6. 94 15. 50 3_71 21.83 * 2.9E 3.00 2.78 9.33 6.65 15.67 3.70 22.00 -2 3; 17 2.91 9. 50 6.49 15. 83 3.70 2-2. 17 2. 9` to"1T.33 3.01 9.67. 6.41. 16.00 3.69 22.33 2.9c 3.50 3.09 9.8. ' 6.37.: 16. 17 3. 69 22.50 2. 9c 3.67 S.28 10.00 6.35 16.33 3_69 22.67 2.9c 3.83 3.52 10. 17 6.34. 16. 50 3.70 22.83 2. 9c 4.00 3.68 10.33 6.34 16.67 3.54 23.00 2.9c 4. 17 3.79 10.50 6.34 16.83 3.29 23. 17 2'. 9` 4.33 3.87 10. 67 6. 10 17.00 3_ 14 23;33 2.9c 4.50 3. 93 10. 83 5. 71' 17. 17 3. 06 23.50 2. 9c 4.67 4. 14 11. 00 5.49 17_33 3. 02 23.67 2.9c 4. S3 4.43 11. 17 5.37 17.50 3.*00 23.83 2.9, 5. 00 4. 62 11.33 S.31. 17. 67 2.99 24.00 2.3� 5. 17 4.75 11.50 5.27, 17. 83 2. 97 24. 17 1.31. 5. 33 4.84 11.67, 5.25 18. 00 2.97 24.33 .0( 5.50 4.92 11.63 5.25. 1 S. 17 ' 2. 9T• 24. 50 .0( 5.67 •5. 16 12.00 5.24 1S.33 2. 97 24.67 .0( 5.83 5.49 12. 17- 5.24 16. 50 2. 97 24.63 .0( 6.00 5.70 12.3..S 5.25 ••18_67 2.97 25.00 .0( 6. 17' 5.E34 12.50 5.25 18. 83 2_97 25. 17 .0( -'SPE{,IFYt C - CONTIN rnni'.• " 'T 'Incc incc TnTq CC7. RTt.Q. Rn:4T TR:tT,nT Title Sheet No. of By / / Chk. / / Job No. SSOE, Inc. • 3015 112th Avenue, N.E., Suite 101 Bellevue, Washington 98004 • Fax 206-827-8412 • 206-827-2950 PIPE H r0P-A-(JL-) rl DEs�c-7�j 3 HOUSR25.XLS TAL SSOE Ae3� PACCAR -HOUSERS STREET STORM SEWER BYPASS / PROJECT#915006 8-Jul-91 SWT 25 -YEAR STORM BACKWATER ANALYSIS LOCATION/ I.STANCE TO PIPE DISTANCE TO INVERT GROUND LEVEL PIPE BURIAL BEND ANGLE AT DOWNSTREAM MANHOLE I OUTPUT NEXT ELEVATION COVERAGE MANHOLE SLOPE DOWNSTREAM LOCATION / (FT) (FT) (FT) (FT) (FT) (degrccs) (%) OUTFALL 0 0 20.45 30.5 6.1 90 N/A 1 59 59 20.60 27.8 4.2 0 0.25% 2 120.79 61.79 20.75 28.0 4.3 0 0.24% 3 420.79 300 21.50 29.5 5.0 6 0.25% 4 720.79 300 22.25 33.0 7.8 18 0.25% 5 1020.79 300 23.00 34.7 8.7 0 0.25% 6 1177.02 156.23 23.39 37.8 11.4 43 0.25% 7 1477.02 300 24.14 38.5 11.4 42 0.25% 8 1777.02 300 24.89 37.4 9.5 0 0.25% 9 2077.02 300 25.64 38.0 9.4 0 0.25% 10 2292.56 215.54 26.18 38.3 9.1 0 0.25% 11 2592.56 300 26.93 38.9 9.0 60 0.25% 12 2892.56 300 27.68 38.4 7.7 0 0.25% 13 3192.56 300 28.43 33.8 2.4 30 0.25% LIMITING CASE 3367.56 175 28.87 33.0 1.1 0 0.25% 14 3492.56 125 29.18 36.0 3.8 90 0.25% INLET 3528.56 36 29.88 37.1 4.2 N/A 1.94% w Page 1 7/8/91 1 3HOU5R25.XL5 TAL SSOE PACCAR - HOUSERS STREET STORM SEWER BYPASS PROJECT#915010 1 2 3 4 5 6 7 8 9 10 11 PIPE FLOW LENGTH PIPE SIZE 'N' VALUR OUTLET INLET BARREL BARREL BARREL TW ELEV FRICTION SEGMENT Q L D ELEV ELEV AREA VELOCITY VELOCITY LOSS i TO MH A V HEAD (CFS) (1 (IN) (FT) (FI) (SQFn (FPS) (m (FT) (FT) OUTFALL 1 60.92 59 48 0.012 20.45 20.60 12.57 4.85 0.36 24.45 0.090 1 2 28.6 61.79 36 0.012 20.60 20.75 7.07 4.05 0.25 25.39 0.096 2 3 28.6 300 36 0.012 20.75 21.50 7.07 4.05 0.25 25.61 0.467 3 4 28.6 300 36 0.012 21.50 22.25 7.07 4.05 0.25 26.21 0.467 4 5 28.6 300 36 0.012 22.25 23.00 7.07 4.05 0.25 26.82 0.467 5 6 28.6 156.23 36 0.012 23.00 23.39 7.07 4.05 0.25 27.44 0.243 6 7 28.6 300 36 0.012 23.39 24.14 7.07 4.05 0.25 27.81 0.467 7 8 28.6 300 36 0.012 24.14 24.89 7.07 4.05 0.25 28.50 0.467 b 9 28.6 300 36 0.012 24.89 25.64 7.07 4.05 0.25 1 29.18 0.467 9 10 28.6 215.54 36 0.012 25.64 26.18 7.07 4.05 0.25 29.78 0.336 10 11 28.6 300 36 0.012 26.18 26.93 7.07 4.05 0.25 30.25 0.467 II 12 28.6 300 36 0.012 26.93 27.68 7.07 4.05 0.25 30.85 0.467 12 13 28.6 300 36 0.012 27.68 28.43 7.07 4.05 0.25 31.61 0.467 13 14 28.6 300 36 0.012 28.43 29.18 7.07 4.05 0.25 32.21 0.467 14 INLET 28.6 36 36 0.012 29.18 29.88 7.07 4.05 0.25 32.85 0.056 0.25 O Page 2 7/8/91 3HOUSR25.XLS TAL SSOE PACCAR -HOUSERS STREET STORM SEWER BYPASS PROJECT#915010 12 13 14 15 16 17 18 19 20 ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND lUCT10N HW ELEV GROUND GL-HW HGL ELEV HEAD LASS HEAD LOSS CONTR CONTR VELOCITY HEAD LOSS HEAD LOSS LEVEL AT ELEV ELEV HEAD MANHOLE (FT) (FT) (FT) (Fr) (FT) (Fr) (FT) (Fn (m (Fr) (1n 24.60 0.18 0.36 25.15 24.12 -0.25 0.34 0.15 25.39 27.8 2.41 25.48 0.13 0.25 25.86 23.90 -0.25 0.01 0.00 25.61 28.0 2.39 26.08 0.13 0.25 26.46 24.65 -0.25 0.01 0.00 26.21 29.5 3.29 26.68 0.13 0.25 27.06 25.40 -0.25 0.01 0.00 26.82 33.0 6.18 27.28 0.13 0.25 27.67 26.15 -0.25 0.03 0.00 27.44 34.7 7.26 27.68 0.13 0.25 28.06 26.54 -0.25 0.01 0.00 27.81 37.8 9.99 28.28 0.13 0.25 28.66 27.29 -0.25 0.09 0.00 28.50 38.5 10.00 28.97 0.13 0.25 29.35 28.04 -0.25 0.09 0.00 29.18 37.4 8.22 29.65 0.13 0.25 30.03 28.79 -0.25 0.01 0.00 29.78 38.0 8.22 30.12 0.13 0.25 30.50 28.82 -0.25 0.01 0.00 30.25 38.3 8.05 30.72 0.13 0.25 31.10 29.57 -0.25 0.01 0.00 30.85 38.9 8.05 31.32 0.13 0.25 31.70 30.32 -0.25 0.16 0.00 31.61 38.4 6.79 32.07 0.13 0.25 32.46 31.07 -0.25 0.01 0.00 32.21 33.8 1.59 32.67 0.13 0.25 33.05 31.82 -0.25 0.05 0.00 32.85 36.0 3.15 32.91 0.13 0.25 33.29 32.52 -0.25 0.34 0.00 33.38 37.1 3.T2 LU O Page 3 7/8/91. (fJ 3HOUS 100.XLS TAL SSOE '� PACCAR -HOUSERS STREET STORM SEWER BYPASS Z/e:5 j i'L �O PROJECT #915006 8-Jul-91 SWT �/ CO 0-YEAR STORM BACKWATER ANALYSIS LOCATION/ DISTANCETOPIPE DLSTANCE TO INVERT GROUND LEVEL PIPE BURIAL BEND ANGLE AT DOWNSTREAM MANHOLE t OUTPUT NEXT ELEVATION COVERAGE MANHOLE SLOPE DOWNSTREAM LOCATION (FT) (FT) (Fn (Fib (FT) (dcgrces) (%) OUTFALL 0 0 20.45 30.5 6.1 90 N/A 1 59 59 20.60 27.8 4.2 0 0.25% 2 120.79 61.79 20.75 28.0 4.3 0 0.24% 3 420.79 300 21.50 29.5 5.0 6 0.25% 4 720.79 300 22.25 33.0 7.8 18 0.25% 5 1020.79 300 23.00 34.7 8.7 0 0.25% 6 1177.02 156.23 23.39 37.8 11.4 43 0.25% 7 1477.02 300 24.14 38.5 11.4 42 0.25% 8 1777.02 300 24.89 37.4 9.5 0 0.25% 9 2077.02 300 25.64 38.0 9.4 0 0.25% 10 2292.56 215.54 26.18 38.3 9.1 0 0.25% II 2592.56 300 26.93 38.9 9.0 60 0.25% 12 2892.56 300 27.68 38.4 7.7 0 0.25% 13 3192.56 300 28.43 33.8 2.4 30 0.25% LIMITING CASE 3367.56 175 28.87 33.0 1.1 10 0.25% 14 3492.56 125 29.18 36.0 3.8 90 0.25% INLET 3528.56 36 29.88 37.1 4 2 N/A 1.94% W Page 1 7/8/91 3 H OUS 100.XLS TAL SSOE PACCAR - HOUSERS STREET STORM SEWER BYPASS PROJECT #915010 1 2 3 4 5 6 7 8 9 10 it IPE FLOW LENGTH PIPE SIZE 'N' VA.LUH OUTLET INLET BARREL BARREL BARREL TW ELEV FRICTION SEGMENT Q L D ELEV ELEV AREA VELOCITY VE OCTTY LOSS N TO MH A V HEAD (CFS) (FT) (IN) (FT) (FIB (SQFT) (FPS) (FT) (FT) (FT) OUTFALL 1 70.8 59 48 0.012 20.45 20.60 12.57 5.63 0.49 24.45 0.121 1 2 33.9 61.79 36 0.012 20.60 20.75 7.07 4.80 0.36 25.67 0.135 2 3 33.9 300 36 0.012 20.75 21.50 7.07 4.80 0.36 25.99 0.656 3 4 33.9 300 36 0.012 21.50 22.25 T07 4.80 0.36 26.83 0.656 4 5 33.9 300 36 0.012 22.25 23.00 7.07 4.80 0.36 27.68 0.656 5 6 33.9 156.23 36 0.012 23.00 2.3.39 7.07 4.80 0.36 28.55 0.342 6 7 33.9 300 36 0.012 23.39 24.14 7.07 4.80 0.36 29.08 0.656 7 8 33.9 300 36 0.012 24.14 24.89 7.07 4.80 0.36 30.04 0.656 8 9 33.9 300 36 0.012 24.89 25.64 7.07 4.80 0.36 31.01 0.656 9 10 33.9 215.54 36 0.012 25.64 26.18 7.07 4.80 0.36 31.85 0.471 10 11 33.9 300 36 0.012 26.18 26.93 7.07 4.80 0.36 32.50 0.656 11 12 33.9 300 36 0.012 26.93 27.68 7.07 4.80 0.36 33.35 0.656 12 13 33.9 300 36 0.012 27.68 28.43 7.07 4.80 0.36 34.41 0.656 13 14 33.9 300 36 0.012 28.43 29.18 7.07 4.80 0.36 35.25 0.656 14 INLET 33.9 36 36 0.012 29.18 29.88 7.07 4.80 0.36 36.16 0.079 0.36 o Page 2 7/8/91 3HOUS100.XLS TAL SSOE PACCAR - HOUSERS STREET STORM SEWER BYPASS PROJECT #915010 12 13 14 15 16 17 18 19 20 ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUCTION HW ELEV GROUND GL HW HGL ELEV HEAD LOSS HEAD LOSS CONTR CONTR VELOCITY HEAD LASS HEAD LOSS LEVEL AT ELEV ELEV HEAD MANHOLE (FI) (FT) (FI) (T) (Fr) (FT) (Fn (FT) (FT) (FI) (FT) 24.60 0.25 0.49 25.34 24.12 -0.36 0.48 0.21 25.67 27.8 2.13 25.80 0.18 0.36 26.34 23.90 -0.36 0.01 0.00 25.99 28.0 2.01 26.65 0.18 0.36 27.18 24.65 -0.36 0.01 0.00 26.83 29.5 2.67 27.49 0.18 0.36 28.02 25.40 -0.36 0.01 0.00 27.68 33.0 5.32 28.34 0.18 0.36 28.87 26.15 -0.36 0.04 0.00 28.55 34.7 6.15 28.89 0.18 0.36 29.43 26.54 -0.36 0.01 0.00 29.08 37.8 8.72 29.74 0.18 0.36 30.27 27.29 -0.36 0.13 0.00 30.04 38.5 8.46 30.70 0.18 0.36 31.23 28.04 -0.36 0.13 0.00 31.01 37.4 6.39 31.66 0.18 0.36 32.20 28.79 -0.36 0.01 0.00 31.85 38.0 6.15 32.32 0.18 0.36 32.85 28.82 -0.36 0.01 0.00 32.50 38.3 5.80 33.16 0.18 0.36 33.70 29.57 -0.36 0.01 0.00 33.35 38.9 5.55 34.00 0.18 0.36 34.54 30.32 -0.36 0.23 0.00 34.41 38.4 3.99 35.07 0.18 0.36 35.60 31.07 -0.36 0.01 0.001 35.25 1 33.8 1 -1.45 35.91 0.18 0.36 36.44 31.82 -0.36 0.07 0.00 36.16 36.0 -0.16 36.24 0.18 0.36 36.77 32.52 -0.36 0.48 0.00 36.89 37.1 0.21 W�l Page 3 7/8/91 Q Title Sheet No. of By / / Chk. / / Job No. SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 Bellevue, Washington 98004 Fax 206-827-8412 • 206-827-2950 poN o /NG \) ©LUME AN AL.Ys 1 s Title "t-A) AqC Sheet No./ of BY Fpjr / //T'/ Chk. / / Job No. `�).SO // SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 • Bellevue, Washington 98004 • Fax 206-827-8412 206-827-2950 7, 9 DID s� Z7,2y �,-7 �u:> 024:.,Zs 2y 27 ,57 Z7, S 7 L',(--:,D �2 Z7- 0 2yj 13 Z�"S s N ab-� 27, q j, 2, Gib Z Title Sheet No. of By l9 hk. / / Job No. 0%s;V // SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 Bellevue, Washington 98004 Fax 206-827-8412 206-827-2950 C� l7__� 27,o� 36iav Zi 27,3 Z&qOn 22 Z7,32 2go,Scb Z7,Z3 2Z Zoe ZT? 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EEE 11 i P9 pq , / Title Sheet No. of By / / Chk. / / Job No. SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 Bellevue, Washington 98004 Fax 206-827-8412 • 206-827-2950 S,Gi��.,�� DES/��J• Title ,/� Sheet No. / of By 7 /, / Chk. / / Job No. SdO� SSOE, Inc. • 3015 112th Avenue, N.E., Suite 101 • Bellevue, Washington 98004 Fax 206-827-8412 • 206-827-2950 All 31,7-3l,00l ole� yl�. s :s G o rr'ob o rQ le-d 4'� D�vSr 11 Lfc�7d�l7l J-" S t 9. 73 2-7 `f,� aof z1' �ON �Z (A) Z(32.2)1.gS /� -= I g SF �- D z /, 38 �� i ez&4;=z /E= 29.0/ /E 9.08 �fo.B Paved storage 317 C x B�PA55 CaP /N /PE CB TYPLd 1 Gd TYvE I CB TYoE I /� 30.5/ P/v1=30.!o(o x30.9 Poved x30.7 /.E.=Z7.Z Paved x 1.5 �-7,-K ♦ , /V0/'OZ"ll0 'E z . • 2 \ /32 7. /0 rN x 3/.7 v4r_ x32.4 „ r Paved I ' '� Paved $forage //--- - - PAR IEL�yB (/R— f / \ �• Fr*-' . EI CB 3 Z. 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SD 2(138 /, /z V 5D 27, / � /- 3/ 29 ,5� 2 g,0�)76 FA' 1 -S� 9 11- �" - • S'o Title �� Sheet No. / of B / l lql Chk. / / Job No. SSOE, Inc. 3015 112th Avenue, N.E., Suite 101 • Bellevue, Washington 98004 Fax 206-827-8412 • 206-827-2950 q = sg -COOS � 31 5'cry = SY3i see- QMRInc 22 January 1992 TO: Gregg Zimmerman - City of Renton cc : Bill Stalzer - City of Renton Dick Bangert - PACCAR Bob Butler - PACCAR Gary Ostle - PACCAR Based on the results of the Downstream Study and our agreed to course of action, we are submitting three sets of drawings and a set of calculations defining the changes to the Houser Street By- Pass storm sewer project and the Grade and Fill project . These changes are required to remove the current conditions applied by the City of Renton to the Houser Street By-Pass permit and allow PACCAR to complete the installation and connection of the Houser Street By-Pass line . Specifically, we have made the following general changes to the drawings : . Replaced the large permanent detention pond shown on the original drawings with a smaller detention pond, sized to the King County requirements . Removed the Houser Street By-Pass overflow pond. . Modified the design detail and location of the temporary restriction in the Houser Street By-Pass sewer. Modified the temporary erosion control pond design to permit backflow from the on-site flood zone in the event of a major event storm. . Established the on-site flood zone limit line and the contractor note prohibiting the filling of this zone until after 15 May 1992 . Roger Lohmolder rBUILDING 6w` Director of Manufacturing Engineering I V E S.d 1 1992 DiVISiON P O Bcx 1318 Bellevue,Washington 98009 Telephone(206)455-7400 Business Center BuiicGng 777-106tn Avenue N E Bellevue,Washington 98004 Facsimile 206-453-4900 1' July 29, 1991 041, Mr. Bill Stalzer City of Renton 200 Mill Avenue South Renton, WA 98055 Dear Mr. Stalzer: Attached for your review and use are proposed utility easements and access authorizations covering the two new PACCAR storm drain lines to be constructed on PACCAR's Renton property. As we have recently discussed in our 7:30am meetings, the City may only desire to have right of access for inspection and emergency debris removal for the Houser Way By-Pass line and allow PACCAR to retain ownership and maintenance of the line. Please contact me if you have technical questions regarding the line. You will need to contact Phil Gladfelter regarding any easement issues. Sincerely, Robert K. Butler, P.E. Corporate Environmental Manger RKB/jk Attachments cc: Dick Bangert Phil Gladfelter Hank Kiefer Claus Hackenberger Gary Ostle -�` :� ;��v.��,' � r o Jfs. DRAFT/PEG:LP/PEG:CITYRDPW.S8M/7-11=91 pm - 2 [PACCAR Letterhead] a 3 1991 City of Renton Department of Public Works 200 Mill Avenue South Renton, WA 98055 �/� �� vJ S ATTN: RE: Utility Permit No. 87225 Storm Drain Line, PACC Defen e Systems Property, Renton Gentlemen: \ Regarding the foregoing Utility Permit for construction of a private storm drain system serving the south half of PACC ' 82 acre Renton, Washington property, the City has expresse concern that it be permitted to inspect the condition and m ' tenance of this storm drain system from time to time, since rainage from the PACCAR property is a significant contrib r to the City's storm drain system installed in Gard enue North. This letter constitutes AR's assurance that upon reasonable notice PACCAR will it entry of authorized City i representativ pon PACCAR's Renton, Washington property from time to t ' for purposes of the .City inspecting the condition and ntenance of the storm drain system covered by the foregoing Utility Permit. Very truly yours, Phillip E. Gladfelter Corporate Real Property Manager PEG:lp cc: R. K. Butler/C. Hackenberger G. T. Ostle DRAFT/PEG:LP/PEG:CITYRSDE.S8M/7-11-91 pm - 3 [PACCAR Letterhead] 1991 City of Renton 200 Mill Avenue South Renton, WA 98055 Attn: RE: Relocated Storm Drain Easement from PACCAR Inc to City of Renton, Vicinity of Vacated Houser Way N. - North Fourth Street to North Eighth Street - Renton, Washington Gentlemen: We refer to the attached easement to be granted by PACCAR Inc to the City of Renton, as Grantee. This property is located at PACCAR's Renton, Washington manufacturing facility (former PACCAR Defense Systems facility) ; the easement area referred to in the easement is to be located in unplatted land in Renton described in the easement. This letter is to advise the City that releases of a significant quantity of hazardous substances on or about the property covered by this easement may have occurred at various times in the past. The Site was, in June 1988, nominated for inclusion on the National Priorities List by US Environmental Protection Agency pursuant to the federal Comprehensive Response, Liability and Compensation Act, as amended. While PACCAR has not tested the easement area separately from the remainder of PACCAR's surround- ing property, the City is advised of the soils and groundwater testing reports respecting the larger PACCAR Renton property (the "Site") in which this easement area will be located in whole or in part, and which PACCAR has previously filed with the Washington Department of Ecology. PACCAR has furnished to the City copies of the Remedial Investigation/Feasibility Study and related Consent Decree hereinafter referred to, and the draft Cleanup Action Plan for this property. The City is also encouraged to confer with R. K. Butler, PACCAR' s Corporate Environmental Manager (this address, telephone, 455-7435) , and David South, Department of Ecology (Redmond office, telephone 649-7200) , respecting such matters. In February 1989, PACCAR entered into a Consent Decree with Ecology in Superior Court for the Remedial Investigation/ DRAFT/PEG:LP/PEG:CITYRSDE.S8M/7-1'1=91 pm - 4 Feasibility Study Work Plan (referred to above) which provided, in part, as follows: "No voluntary or involuntary conveyance or relinquishment of title, easement, leasehold, or other interest in any portion. of the Site shall be consummated without provision for continued operation and maintenance of any containment system, treatment system, and monitoring system installed or implemented pursuant to this Decree. " "Prior to transfer of any legal or equitable interest in all or any portion of the property, Defendant shall serve a copy of this Decree and the attached Exhibits upon any prospective purchaser, lessee, transferee, assignee, or other successor in interest of the property; and, at least thirty (30) days prior to any transfer, Defendant shall notify Ecology of said dontemplated transfer. " In connection with the ultimate Cleanup Action Plan, PACCAR will hereafter enter into another Consent Decree with Ecology in Superior Court, which is expected to provide, in part, substantially to the same effect as above quoted from the February 1989 Consent Decree. In addition, it is expected that this additional Consent Decree will also provide as follows: "Upon entry of this Decree, Defendant agrees that the restrictive covenant, attached hereto as Exhibit "C, " shall be recorded with the Office of the King County Auditor and shall restrict future uses of the Site. With Ecology's prior written approval, and after completion of the remedial action required by this Decree, Defendant, or its successor(s) , may record an instrument which provides that the restrictive covenant provided at Exhibit "C" shall no longer limit uses of the Site or be of any further force or effect. " Respecting all such matters and the condition of the Easement Area to be covered by this easement, we advise you that such conveyance is made subject to any obligations of PACCAR in connection with these Consent Decrees. In connection with the particular storm drainage utilities installed in this easement, PACCAR has already undertaken this construction on behalf of the City. Among the precautions PACCAR took to eliminate risks associated with any soil contamination encountered were the following: • All excavation, movement of soils and placement of filter fabric was accomplished by certified workers who have received 40 hours of training in accordance with OSHA Regulation 29 CFR 1910. 120. DRAFT/PEG:LP/PEG:CITYRSDE.S 8M/7-11=9 1 pm - 5 • All excavated materials were stockpiled on-site and soils are to be handled as part of the site remedial actions. • All excavations were lined with a minimum 6 oz. polypropylene, nonwoven, needle punched filter fabric with a minimum 12" overlap at the seams. • Lined excavations have been back filled with clean imported material. We trust the foregoing adequately addresses any concerns the City may have associated with construction and future maintenance of storm drain utility lines to be conveyed by this easement. Very truly yours, Phillip E. Gladfelter Corporate Real Property Manager PEG: lp Attachment: Form of Easement cc: Department of Ecology, Redmond [30 days' advance notice, or waive same] Attn: David South DRAFT/PEG:LP/PEG:CITYRSDE.S8M/7-11=gl pm - 6 bcc: R. K. Butler/C. Hackenberger J. R. Bauman R. P. Beveridge, Esq. S. E. Mack, Esq. D. G. Opacki, Esq. G. T. Ostle DRAFT/PEG:LP/PEG:UTILS DE.S8M/7-11-91 pm - 7 I UTILITY EASEMENT AND RELEASE OF EASEMENT i PACCAR Inc ("GRANTO for =uable n consideration of the sum of One Dollar ($1. 00) and of v consideration, receipt of which is hereby acknowledged reby conveys and quitclaims unto the City of Renton, a Washingto it tc usive easement ruc o e aintain reconst ,-'inspect and remove a p 'c rain, o land, situated in King oun tate of Washington, describ as follows: A strip of land in south half of Section 8, Township 23 North, Range 5 a enton, King County, Washington which is four feet f r st drain purposes and eight feet for maint purpo n each side ine described as follows: [Insert legal description of easement centerline] , as such parcels are more particularly shown cross-hatched on the map attached hereto as Exhibit A and by this reference incorporated herein. Said parcels are herein referred to as the "Easement Area. " TO HAVE AND TO HOLD said easement unto GRANTEE and its successors and assigns forever, subject to the covenants and conditions hereof, which GRANTEE by its acceptance of this easement agrees to fully perform. 1. Subject only to the rights expressly granted in this easement, GRANTOR reserves all rights with respect to the Easement Area including, without limitation, the right to grant additional easements, licenses and permits therein to others, the right to install utilities and other fixtures or improvements over, upon, across and under the Easement Area; and the right to locate structures with permanent foundations within the Easement Areas; PROVIDED HOWEVER, that no surface structures shall be located within 5 feet horizontally of GRANTEE's storm drain utilities installed under this easement without GRANTEE's prior written consent (which consent GRANTEE agrees not to withhold unreasonably) . GRANTOR shall not be liable to GRANTEE, or to GRANTEE 's employees, agents, contractors or users of GRANTEE ' s property, for loss or injury resulting from any damage or destruction of GRANTEE ' s facilities directly or indirectly caused by GRANTOR' s use of the Easement Area or GRANTOR' s storm drain facilities on the Easement Area, excepting only loss or injury which results solely from GRANTOR's failure to exercise reasonable care not to damage or destroy GRANTEE 's storm drain facilities installed within the Easement Area. DRAFT/PEG:LP/PEG:UTILSDE.S8M/7-11-91 pm - 8 2. GRANTOR reserves the right to relocate the storm drain facilities installed in the Easement Area and the related Easement Area, in whole or in part, at GRANTOR's expense in connection with future redevelopment of GRANTOR's property; provided, that no such relocation shall adversely affect drainage flow rates of the storm drain facilities as initially installed in the Easement Area. 3 . GRANTEE does hereby release, indemnify and promise to defend and save harmless GRANTOR from and against any and all liability, loss, damage, expense, actions and claims, including costs and reasonable attorneys' fees incurred by GRANTOR in defense thereof, asserted or arising directly or indirectly on account of or out of acts or omissions of GRANTEE and GRANTEE's servants, agents, employees and contractors in the exercise of the rights granted herein; PROVIDED, HOWEVER, this paragraph does not purport to indemnify GRANTOR against liability for damages arising out of bodily injury to persons or damage to property caused by or resulting from the sole negligence of GRANTOR or GRANTOR's agents or employees. 4 . GRANTEE shall at all times maintain -the Easement Area in good and safe condition and repair. 5. If the Easement Area ceases to be used by GRANTEE to convey public storm drainage between North Fourth Street and North Eighth Street in the City of Renton, then the easement herein granted shall terminate, and all rights, interests and privileges granted hereunder shall revert to the GRANTOR, its successors and assigns. Upon any termination of this easement, GRANTEE shall promptly remove from the terminated Easement Area any facilities installed by GRANTEE, and shall restore the Easement Area to its condition prior to such removal. 6. Notices given under this easement shall be given as follows: If to GRANTOR: PACCAR Inc Corporate Real Property Manager 777 - 106th Ave. N.E. Bellevue, WA 98004 If to GRANTEE: The City of Renton Department of Public Works 200 Mill Avenue South Renton, WA 98055 Either party may change the address to which notices may be given by giving notice as above provided. 7 . GRANTOR at its expense is initially installing the storm water drainage facilities to be used by GRANTEE in the Easement Area. Effective upon completion of such installation and acceptance by GRANTEE (as evidenced by its commencing storm DRAFT/PEG:LP/PEG:UTILS DE.S8M/7-11"91 pm - 9 drainage through the Easement Area) , GRANTOR sells and delivers unto GRANTEE all piping, catch basins, valves, meters, appurtenances, vaults and other storm drainage facilities installed in the Easement Area, TO HAVE AND TO HOLD the same to the GRANTEE and its successors and assigns forever. The foregoing sale and delivery are intended to transfer to GRANTEE all of GRANTOR's interest in the foregoing described property after installation in the Easement Area, whether such property is correctly characterized as realty or personalty. 8. By its acceptance of this Easement and in consideration of the grant hereof, as evidenced by the recordation of this Easement, GRANTEE conveys and quitclaims to GRANTOR all right, title and interest of GRANTEE, its successors and assigns, including any after-acquired title, in and to a storm drain line traversing GRANTOR's property and located approximately within the corridor legally described in Exhibit B attached hereto and incorporated herein, including any rights of GRANTEE to use thereof and of GRANTOR's land to convey surface waters of GRANTEE or others, and GRANTEE hereby expressly releases and forever abandons all such interests and rights unto GRANTOR. Said storm drain line and rights hereby quitclaimed- and released by GRANTEE have been replaced by the Easement Area granted by GRANTOR to GRANTEE by this instrument. This easement has been executed as of this day of 1991. GRANTOR: (SEAL) PACCAR Inc Attest: By Assistant Secretary Its STATE OF WASHINGTON ) ) ss. COUNTY OF KING ) On this day of 1991, before me personally appeared and , to me known to be the and Assistant Secretary , respectively, of PACCAR Inc, the corporation that executed the within and foregoing instrument, and acknowledged the same to be the free DRAFT/PEG:LP/PEG:UTILSDE.SBM/7-11-91 pm - 10 and voluntary act and deed of said corporation, for the uses and purposes therein mentioned, and on oath stated that they were authorized to execute said instrument. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal, the day and year first above written. Notary Public in and for the State of Washington, residing at DRAFT/PEG:LP/PEG:UTILSDE.S8M/7-11-91 pm - 11 r EXHIBIT A ' TO { STORM DRAIN EASEMENT i i i i (plot plan of relocated storm drain easement) i 1 I { : DRAFT/PEG:LP/PEG:UTILSDE.S8M/7-11-91 pm - 12 EXHIBIT B TO STORM DRAIN EASEMENT Legal Description of Released Storm Drain Easement Storm Drainage Easement No. 1 A strip of land, 25. 00 feet in width, over a portion of the southeast quarter of Section 8, Township 23 North, Range 5 East, W.M. , in the City of Renton, King County, Washington, said strip of land having 10. 00 feet easterly of and 15.00 feet westerly of the following described centerline: Commencing at the east quarter corner of said Section 8, from which point the northeast corner of said section bears N01'02109"E; thence N89 '271125"W, along the north line of said southeast quarter, 2647.56 feet to an existing center of section monument; thence S01"0214011W, along the north-south center of section line of said Section 8, a distance of 60. 00 feet to the southerly margin of North 8th Street; thence N89"27125"W, along said southerly margin, 311. 00 feet to the TRUE POINT OF BEGINNING of the herein described centerline; thence S01'1512511W 653 . 99 feet; thence S20'4611711E 110.74 feet; thence S24°5010011E 510. 59 feet; thence S30°0010011E 323 .10 feet; thence S00"0010011W 188. 69 feet; thence S13 °2210011E 48. 65 feet; thence S11°0510011E 130. 20 feet; thence S10`1919911E 185.37 feet; thence S11'0210011E 59 .83 feet; thence S27 '5810011W 16.84 feet; thence S03 °0712411W 58 .74 feet; thence N89' 1110011E 24. 19 feet; thence S09'4510011E 164 . 14 feet; thence S05'4110011E 229. 04 feet, more or less to the northerly margin of North 4th Street and the terminus of the herein described centerline. PACCAR DEI Project No 85123 July 9, 1991 851.23SWRESMNT#1 -1 Printed - 07/10/1991 PRIVATE DRAINAGE EASEMENT For a valuable consideration, receipt of which is hereby acknowledged, the GRANTOR(s) the owner(s) in fee of that certain parcel of land, described as follows: hereby grants and conveys a drainage easement(as shown on the attached Exhibit"A") for the purpose of conveying or storing storm and surface water per an engineering plan approved by City of Renton, a Municipality Corporation of King County, for the project known as: together with the right for City of Renton to enter said drainage easement for the Y purpose of observing that the owner(s)are properly operating and maintaining the drainage facilities contained within. The owner(s) of said parcel are responsible for operating, maintaining and repairing the drainage facilities contained within said drainage easement, and are hereby required to obtain written approval from the City of Renton prior to filling, piping,or cutting or removing vegetation (except for routine landscape maintenance such as lawn mowing), in open vegetated drainage facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the drainage facilities, contained within said drainage easement. The covenants herein contained shall run with the land and are binding upon the GRANTOR(s), it's heirs, and all subsequent owner(s) thereof, forever. IN WITNESS THEREOF, the said GRANTOR(s)hereto have hereunto set their hands: GRANTOR GRANTOR STATE OF WASHINGTON ) COUNTY OF KING ) ss On this day personally appeared before me: to me known to be the individual(s) described in and who executed the within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated. Given under my hand and ofcial seal this day of , 19 NOTARY PUBLIC in and for the State of Washington, residing at August 19, 1991 PA=R Inc Business Center Building P.O. Box 1518 Bellevue, Washington 98009 Mr. Gregg Zimmerman Telephone (206) 455-7400 Plan Review Supervisor City of Renton 200 Mill Avenue South, Fifth Floor Renton, WA 98055 Subject: PACCAR Utility Permit Application#87225 Houser Storm Sewer By-Pass and South Site Storm Sewer Interceptor Enclosed please find three copies of the following re-submittals for the above subject project. o SSOE Drawings Project #915006 Sheet 1 of 11 Cover Sheet issued 8-16-91 Sheet 2 of 11 G-i revised 8-16-92 Sheet 3 of 11 SD-1 revised 7-31-91 Sheet 4 of 11 SD-2 revised 8-16-91 Sheet 5 of 11 SD-3 revised 8-16-91 Sheet 6 of 11 SD-4 revised 8-16-91 Sheet 7 of 11 G-2 revised 8-16-91 Sheet 8 of 11 SD-5 revised 8-16-91 Sheet 9 of 11 SD-6 revised 8-16-91 Sheet 10 of 11 SD-7 revised 8-16-91 Sheet 11 of 11 SD-8 issued 8-16-91 o Hart Crowser Drawing Sheet 6 of 6 revised 8-13-91. Also enclosed is SSOE's letter dated August 15, 1991 addressing the items in your letter dated August 9, 1991 and summarizing the meeting on August 13, 1991. When you advise me that the enclosed drawings are approved, I will submit Mylar copies of each drawing for your signature. Sincerely, R. K. Butler, P.E. Corporate Environmental Manager cc: Dick Bangert (w/o drawings) Phil Gladfelter (w/o drawings) Claus Hackenberger (w/drawings) Roger Lohmolder (w/drawings) Bill Stalzer (w/o drawings) August 15, 1991 Mr. Roger Lohmolder RE: Kenworth Renton Plant PACCAR, Inc. SSOE Understanding of P.O. Box 1518 City of Renton Memorandum Bellevue, Washington 98009 Dated August 9, 1991 SSOE Job No. 915006 Dear Roger- On Tuesday,August 13,1991,SSOE and PACCAR met with Randall Parsons, Gregg Zimmerman and David Jennings to discuss review comments for the"Houser Storm Sewer Bypass and South Site Storm Sewer Interceptor Construction Plans". The first point of discussion related to the design methodology of inlet control versus outlet control. SSOE pointed out that several weeks previous to this date Steve Wittmann-Todd, Bob Butler and Randall Parsons met to discuss design methods and assumptions in an attempt to establish parameters that would be acceptable to the City at final plan review. Two of the three participants in that discussion recall the agreement was to use inlet control. Parsons now denies any such agreement and believes outlet control is the correct assumption. The assumptions used to support outlet versus inlet control have been under discussion for several years and may be determined when further backwater analysis of the downstream pipes is completed. However, to keep this project moving the City of Renton has agreed to issue a utility permit to PACCAR covering the two storm drain lines as soon as the City reviews and approves revised drawings incorporating the City's General Comments in their letter of August 9, 1991. PACCAR may then start construction of the storm sewer lines. PACCAR understands that the issue of the size of the pond must be resolved and the pond constructed prior to connection of the Houser Way Bypass line to the City of Renton storm sewer lines at either North 4th Street or North 8th Street. PACCAR/SSOE has incorporated the following revisions into the storm drainage plans in response to the City of Renton's General Comments. (The numbered sequence matches the City of Renton's comments). 1. Will do 2. Rain water will be directed into the trench and pumped to Baker tanks for treatment. 3. Will do 5eE HC olrQu:.n� 4. Will do SL�c�4 6eC6 5. Will do 6. Will do 7. Will do 8. General detail will be used. Modified to meet intent of welding standpipe closed. 9. Will do 10. Will do 11. Will do SSOE, INC. ENGINEERS ARCHITECTS PLANNERS 3015 112 T H AVENUE NORTHEAS T, SUITE 101, BELLEVUE,WASHINGTON 98004 (2C6) 827-2950 PAX: (2C6) 827-8z' 2. Mr. Roger Lohmolder PACCAR, Inc. August 15, 1991 Page 2 12. Will do 13. Current design is O.K as is. 14. Will do 15. Will do kp QkG 16. Contractor will submit work plan. Added note to plans for requirement. 17. Detail shown in specifications. 18. O.K. as shown. 19. Will do using best available date.or assumptions. 20. Will do 21. Will do with best available data or assumptions. 22. Sequence of pipe installation changed. 23. Will do 24. Will do 25. Will do 26. Will do 27. Will do 28. Will do 29. Will do 30. Will do. The following comment refers to the City of Renton's "Addendum to Review Comments for PACCAR Houser Storm Sewer Bypass and South Site Storm Sewer Interceptor Construction Plans" dated August 9, 1991. Further revisions of the calculations will depend on the results of the backwater analysis. Determination of outlet versus inlet control will be made after criteria is established by the backwater analysis. Sincerely, Lee S. Miesbauer, P.E. Branch Manager LSM:ed cc: D. Bangert, PACCAR Q Ostle, PACCAR c\wp51\info\Paco r\letters\e91 S006b VOi Vol al 1V. Uo rAA LVU GJJ G•)31 I(L.\1V V r-n-riv L0 UUZ/UU� CITY OF RENTON MEMORANDUM Stormwater and Wastewater Utility Section DATE: August 9, 1991 TO: Gregg Zimmerman FROM: Randall Parsons STAFF CONTACT: David Jennings SUBJECT: REVIEW COMMENTS FOR PACCAR HOUSER STORM SEWED BYPASS AND SOUTH SITE STORM SEWER INTERCEPTOR CONSTRUCTION PLANS The following are the Stormwater and Wastewater Utility Section's review comments for the Houser Storm Sewer Bypass and South Site Storm Sewer Interceptor construction plans and specifications. The review comments for the drainage report will be provided in a separate memorandum early next week Note, we have reviewed the drainage report to the extent that we are comfortable with the sizing of the pipelines. We do not however agree with the assumption of the restricted 18"pipe being analyzed under"Inlet Control". We feel that during severe storm events that the downstream pipe system will be fully surcharged and therefore operating under"Outlet Control". Using Figure 4.3.5E from the King County Surface Water Design Manual,with an estimated "H" of 0.6 feet (the high ground to the west is around 31.7 and the CS rim is 31.07),with a Ke of 0.5, and a length of downstream pipe of 130',we estimate a maximum discharge of 5.5 cfs. This is 7 cfs less than the 12.5 cfs estimated by Steve Whittman-Todd using the"Inlet Control'assumption. Note,this 5.5 cfs is also the maximum discharge for this pipe (S = 0.002, n = 0.011, D = 18')that is computed using Manning's flowing full pipe calculations. Therefore,we recommend they review this assumption and 9 they concur with our conclusions the interim detention pond will have to be enlarged significantly to maintain a downstream release rate of 5.5 cfs. Note, I am open to considering additional justification for why the release rate should be larger than 5.5 cfs or in their refining the upstream tributary flow calculations to reduce the estimated tributary peak flow, as previously discussed. - Considering the tight schedule for this project we propose approval of the construction plans and specificatlons prior to our complete approval of the drainage report. Addressing the comments on the drainage report will also be essential for the truck plant. We feel comfortable with this arrangement and will not be jeopardWng public health, safety or welfare with this approach. The applicant/engineer shall make the following revisions/corrections: ,GENERAL COMMENTS: (1) Provide an overall plan view (key) map(as the cover sheet to this plan set) showing the entire alignment of the existing storm line, interim detention pond and the proposed storm sewer interceptor, the roadway,the property, right-of-way lines and drainage/access easement lines; and the layout/inter-relationship of the enclosed plan and profile sheets. Use the small key map on page 6 of 9 to show relationship of each plan and profile sheet to the overall project site. (2) Erosion/sedimentation control plan details need to be shown, possibly on the existing plan view of the plan and profile sheets, and details included on a detail sheet. This should include at least the limits of disturbance,the stabilized construction entrances/exits,locations of sediment retention structures, 08/09/91 16: 10 FAT 206 235 2541 RENTON F B/FPS 1O000/005 Randall Parsons: 8/9/91 Pac=r/Houser Storm Sewer Bypass Hydrology Report Page 2 interceptor ditches, filter fabric fencing, how runoff from disturbed areas will be collected and/or discharged, and areas where excavated trench materials will be stockpiled. Note, specifications (02200-3.2) states that the trench excavations will not be used as temporary drainage ditches. Therefore, the location of interceptor ditches and dewatering areas need to be shown. This would include showing how this runoff will be directed to the Baker tanks for treatment. (3) Prior to release of the construction permit bonds the applicant shall: Submit an endorsed "private drainage/access easement"over the entire length of the storm sewer interceptor alignment. This easement shall be 15 feet in width with the pipe located in the center of the easement. This easement shall be described by a metes and bounds legal description referenced from adjacent City of Renton monumentation. Provide an endorsed restrictive covenant over the area (extending a distance of at least 15 feet from the outside toe of the berm slopes) containing the interim detention pond (shown on sheet 2 of 9). This restrictive covenant shall be recorded by the City against the property title and will state that the drainage facilities within the described area may not be modified or removed, nor the restrictive covenant removed, without written approval from the Planning/Building/Public Works Department Administrator. This restrictive covenant area shall be described by a metes and bounds legal description referenced from adjacent City of Renton monumentation. k NOTES. DETAILS AND VICINITY MAP SHED/SPECIFICATIONS: (4) Erosion/Sedimentation Control Notes: Note 8 does not appear to be relevant. The following notes shall be added: "All limits of clearing/stripping and areas of vegetation preservation as shown on the plan shall be clearly flagged in the field and observed during construction." "During the time period of November 1 st through March 31 st, all project disturbed soil areas greater than 5,000 square feet, that are to be left unworked for more than twelve (12) hours, shall be covered by mulch, sodding, or plastic covering." (5) Note 12 is not complete. (6) Compaction density for pipe backfill must be minimum 90 %. Sackfill in the right-of-way must be 5/8" minus crushed rock and compaction density shall be 95 %. m Note 20 should be clarified to read"per City of Renton Standard Plan Sheet 3.2.3.. (8) As previously discussed with S.S.O.E. (Steven Whittman-Todd), the flow restrictor must be installed in a manhole and in conformance with the City of Renton Standard Detail 3.4.2 with a Shear Gate on the FROP-T per Standard Detail 3.4.3.. The standpipe should be capped with a removable cap to prevent overflow into the downstream system and instead overflow out the top of manhole. Note,this manhole should have grating on top with a lockable access hatch as opposed to a solid cover on a standard manhole lid. It the restrictor can be removed in the future this manhole rim can likely lowered down to match existing grade with a standard solid cover and manhole lid. PLAN & PROFILE SHEET 2 OF 9: 08/09/91 16: 10 FAX 206 235 2541 RENTON P%B-Pit' 004/005 Rar;dall Parsons: 8/9/91 Paccar/Houser Storm Sewer Bypass Hydrology Report Page 3 - . man View ' (9) Show the alignment and size of the existing storm drainage lines in Houser Way and on the site which the storm interceptor connects to: both north and south. Show direction of flow areas at each connection of the new storm pipe into an existing or proposed structure (do this for all plan views on all sheets). (10) Show the location and size of the water and sewer lines where the new storm pipeline crosses. (11) Show a plan view of manhole at STA 4+36 on the detail sheet. Show location of ladders. We suspect that a 96"diameter may be needed to accommodate 3-36"diameter concrete pipes as shown. (12) The pond berm top width should be 6 feet wide not 4 feet. The berm overflow elevation should be raised to elevation 35 and the emergency overflow elevation should be at 34. (13) The current design for the pipe between the man hof e at STA 4+36 and the pond inlet structure will not gravity drain and will therefore rapidly accumulate silt and sediment. In addition,the constant surcharged condition will not allow this pipe to be readily inspected to assure it will be available when needed. We understand the concerns with maintaining quiescent flow in and out of the detention pond but we recommend you reconsider a design which will allow this connection to gravity drain. (14) The minimum finished grade cover over the pipe should be 2 feet (currently shown as 1.10 feet). (15) The Sequencing and Scheduling section (2720-1.5) should indicate that the Houser Storm Sewer Bypass shalt be installed and approved by the City of Renton prior to the capping/plugging of the existing 24" storm drainage pipe. Note,the existing storm drainage pipe must remain functional. We recommend that construction commence at the most downstream point and worked upstream. (16) Describe in the Spec's how storm drainage will be conveyed while the manhole at STA 1+00 is replaced and the new storm line.connected. (17) Describe in the Spec's and provide a detail of how the existing storm drainage pipe will be capped/plugged. (18) Indicate the length and slope of the 36"pipe from the manhole at STA 4+36 to the pond inlet structure. ProiTe View (19) Show the location and size of the water and sewer lines where the new storm pipeline crosses. (20) Show the interim detention pond profile (at the most westerly portion of the pond) in the profile view adjacent to the storm sewer. PLAN & PROFILE SHEETS 3 AND 4: No specific comments. PLAN & PROFILE SHEET 5 OF 9: Plan View (21) Show location of pipe and inlet Including invert) for existing 30"x 18"CMP arch pipe at STA 29+00. (22) Show a plan view detail of the pipes and ladders for the proposed 132"diameter manhole at STA 35+69.58. Show the existing 24"storm pipe inlet and invert. Discuss in specifications how proposed 42" South She storm sewer interceptor may or may not be in operation and what the recommended 08/09/91 16: 11 FAX 206 235 2541 RE`TO P-'B-PW C3]005/00; Randall Parsons: 8/9/91 Paaar/Houser Storm Sewer Bypass Hydrology Report Page 4' - , sequence of construction is. Note, why would this not be constructed first eliminating the ambiguous language 7 We recommend installing the 42' South Site storm sewer interceptor up to the existing channel and installing a manhole with a 42'stub to the south with this contract now. This would eliminate the need for connecting the existing 24' pipe now and may allow you to reduce the size of the 132" manhole_ When the South Site storm sewer interceptor is constructed it would then take off from this manhole in the channel. Note, your filling and grading plans rely on the channel remaining operational. (23) Shaw plan view on detail sheet of proposed flow control manhole at STA 32+07.79. (24) Show and dimension limits of pavement sawing and patching in the roadway of N. 8th St. (label N. 8th St. in all the plan views)_ (25) Show more distinctly the location and size of the gas,water and sewer lines where the new storm pipeline crosses in N. 8th St.. (26) The flow restrictor assembly should be located in the manhole at STA 32+07.79. The rim should be raised to elevation 33 and the manhole provided with a full metal grate cover with lockable access door (note Details above). A berm should be provided around this manhole cover with a top elevation of at least 34 to prevent storm drainage which might exit this manhole from flowing back onto the PACCAR site to the south and instead flow to the north onto N.8th St.. The berm and overflow area to the west should be covered with riprap for stabilization. Profile Yew (2T,; Show the existing gas, storm drainage, sewer and water lines in cross-section and to scale in N.8th St.. It appears that the extension of the 48"RCP may conflict with the 21"sewer line and may require adjustments to the gas and water lines. Contact Dave Christensen,Wastewater Utility Engineer at 277 -6212, for specifications on constructing under the sewer line. The specifications should discuss how the City will approve adjustments in the water lines or the sewer line. PIJ�N & PROFILE SHEET;6 OF 9: (28) Make the same revisions to these notes as noted above for sheet 1 of 9. (29) Note, the Key Maps shown on these plan and profiles should be used on Sheets 2 through 5 and they should all show how each plan and profile sheet relates to the overall project site. PLAN & PROFILE SHEETS •7 AND 8 OF 9; No specific comments. QE'rAIVNOTES SHEET: 9 OF 9' (30) As noted above,we recommend installing the 42"South Site storm sewer interceptor up to the existing channel and installing a manhole with a 42"stub to the south with the Houser Storm Sewer not this project- This would eliminate the need for connecting the existing 24' pipe now and may allow you to reduce the size of the 132" manhole. When this South Site storm sewer interceptor is constructed it would then tie onto this manhole in the channel. Note,your filling and grading plans rely on the channel remaining operational. PACSINT:RP:rp cc: D(ck Anderson AT �° C! �r� ,t►�`5 CITY OF RENTON MEMORANDUM Stormwater and Wastewater Utility Section DATE: August 9, 1991 TO: Gregg Zimmerman FROM: Randall Parsons STAFF CONTACT: David Jennings SUBJECT: REVIEW COMMENTS FOR PACCAR HOUSER STORM SEWER BYPASS AND SOUTH SITE STORM SEWER INTERCEPTOR CONSTRUCTION PLANS The following are the Stormwater and Wastewater Utility Section's review comments for the Houser Storm Sewer Bypass and South Site Storm Sewer Interceptor construction plans and specifications. The review comments for the drainage report will be provided in a separate memorandum early next week. Note, we have reviewed the drainage report to the extent that we are comfortable with the sizing of the pipelines. ® We do not however agree with the assumption of the restricted 18" pipe being analyzed under"Inlet Control". Q We feel that during severe storm events that the downstream pipe system will be fully surcharged and therefore Q ' operating under"Outlet Control". Using Figure 4.3.5E from the King County Surface Water Design Manual, with an estimated "H" of 0.6 feet (the high ground to the west is around 31.7 and the CB rim is 31.07), with a Ke of 0.5, and a length of downstream pipe of 130', we estimate a maximum discharge of 5.5 cfs. This is 7 cfs less than the 12.5 cfs estimated by Steve Whittman-Todd using the"Inlet Control"assumption. Note.this 5.5 cfs is also the maximum discharge for this pipe (S = 0.002, n = 0.011, D = 18")that is computed using Manning's flowing full pipe calculations. Therefore, we recommend they review this assumption and if they concur with our conclusions the interim detention pond will have to be enlarged significantly to maintain a downstream release rate of 5.5 cfs. Note, I am open to considering additional justification for why the release rate should be larger than 5.5 cfs or in their refining the upstream tributary flow calculations to reduce the estimated tributary peak flow, as previously discussed. Considering the tight schedule for this project we propose approval of the construction plans and specifications prior to our complete approval of the drainage report. Addressing the comments on the drainage report will also be essential for the truck plant. We feel comfortable with this arrangement and will not be jeopardizing public health, safety or welfare with this approach. The applicant/engineer shall make the following revisions/corrections: GENERAL COMMENTS: (1) Provide an overall plan view (key) map (as the cover sheet to this plan set) showing the entire �4 alignment of the existing storm line, interim detention pond and the proposed storm sewer interceptor, w� the roadway;the property, right-of-way lines and drainage/access easement lines; and the 0 layout/inter-relationship of the enclosed plan and profile sheets. Use the small key map on page 6 of 9 to show relationship of each plan and profile sheet to the overall project site. (2) Erosion/sedimentation control plan details need to be shown, possibly on the existing plan view of the plan and profile sheets, and details included on a detail sheet. This should include at least the limits of i I disturbance, the stabilized construction entrances/exits,locations of sediment retention structures, ' Randall Parsons: 8/9/91 Paccar/Houser Storm Sewer Bypass Hydrology Report Page 2 interceptor ditches, filter fabric fencing, how runoff from disturbed areas will be collected and/or . discharged, and areas where excavated trench materials will be stockpiled. NQ w Note, specifications (02200-3.2) states that the trench excavations will not be used as temporary �J drainage ditches. Therefore, the location of interceptor ditches and dewatering areas need to be shown. This would include showing how this runoff will be directed to the Baker tanks for treatment. (3) Prior to release of the construction permit bonds the applicant shall: W Submit an endorsed "private drainage/access easement" over the entire length of the storm sewer interceptor alignment. This easement shall be 15 feet in width with the pipe located in the center of the lfel easement. This easement shall be described by a metes and bounds legal description referenced from adjacent City of Renton monumentation. Provide an endorsed restrictive covenant over the area (extending a distance of at least 15 feet from Q11'fi [ the outside toe of the berm slopes) containing the interim detention pond (shown on sheet 2 of 9). This Of f � �' restrictive covenant shall be recorded by the City against the property title and will state that the drainage facilities within the described area may not be modified or removed, nor the restrictive covenant removed, without written approval from the Planning/Building/Public Works Department D�! Administrator. This restrictive covenant area shall be described by a metes and bounds legal description referenced from adjacent City of Renton monumentation. NOTES. DETAILS AND VICINITY MAP SHEET/SPECIFICATIONS: lf�l 17a (4) Erosion/Sedimentation Control Notes: Note 8 does not appear to be relevant. The following notes shall be added: "All limits of clearing/stripping and areas of vegetation preservation as shown on the plan shall be clearly flagged in the field and observed during construction." r It "During the time period of November 1 st through March 31 st, all project disturbed soil areas greater than 5,000 square feet, that are to be left unworked for more than twelve (12) hours, shall be covered by mulch, sodding, or plastic covering." �I J 2 a (5) Note 12 is not complete. r Wl b�, 17" (6) Compaction density for pipe backfill must be minimum 90 %. Backfill in the right-of-way must be 5/8" minus crushed rock and compaction density shall be 95%. tj j 12 (7) Note 20 should be clarified to read "per City of Renton Standard Plan Sheet 3.2.3.. (8) As previously discussed with S.S.O.E. (Steven Whittman-Todd),the flow restrictor must be installed in r G a manhole and in conformance with the City of Renton Standard Detail 3.4.2 with a Shear Gate on the� Gvl b FROP-T per Standard Detail 3.4.3.. The standpipe should be capped with a removable cap to prevent 1 j L 026V overflow into the downstream system and instead overflow out the top of manhole. Note, this manhole1J6 L should have grating on top with a lockable access hatch as opposed to a solid cover on a standard dv manhole lid. It the restrictor can be removed in the future this manhole rim can likely lowered down to match existing grade with a standard solid cover and,manhole lid. PLAN & PROFILE SHEET 2 OF 9: Randall Parsons: 8/9/91 ` Paccar/Houser Storm Sewer Bypass Hydrology Report Page 3 Plan View (9) Show the alignment and size of the existing storm drainage lines in Houser Way and on the site which the storm interceptor connects to: both north and south. Show direction of flow areas at each connection of the new storm pipe into an existing or proposed structure (do this for all plan views on all sheets). (10) Show the location and size of the water and sewer lines where the new storm pipeline crosses. rk V,, J?d (11) Show a plan view of manhole at STA 4+36 on the detail sheet. Show location of ladders. We suspect t, that a 96"diameter may be needed to accommodate 3 -36"diameter concrete pipes as shown. ;� 72 rgv yr W(1 t (12) The pond berm top width should be 6 feet wide not 4 feet. The berm overflow elevation should be raised to elevation 35 and the emergency overflow elevation should be at 34. 0 (13) The current design for the pipe between the manhole at STA 4+36 and the pond inlet structure will not gravity drain and will therefore rapidly accumulate silt and sediment. In addition, the constant surcharged condition will not allow this pipe to be readily inspected to assure it will be available when !� needed. We understand the concerns with maintaining quiescent flow in and out of the detention pond but we recommend you reconsider a design which will allow this connection to gravity drain. pb (14) The minimum finished grade cover over the pipe should be 2 feet (currently shown as 1.10 feet). W�� (2 U (15) The Sequencing and Scheduling section (2720- 1.5) should indicate that the Houser Storm Sewer UPI Bypass shall be installed and approved by the City of Renton prior to the capping/plugging of the existing 24" storm drainage pipe. Note,the existing storm drainage pipe must remain functional. We recommend that construction commence at the most downstream point and worked upstream. (16) Describe in the Spec's how storm drainage will be conveyed while the manhole at STA 1+00 is 1 I� replaced and the new storm line,connected. (17) Describe in the Spec's and provide a detail of how the existing storm drainage pipe will be capped/plugged. t)f18) Indicate the length and slope of the 36" pipe from the manhole at STA 4+36 to the pond inlet structure. Profile View wlv� j7J (19) Show the location and size of the water and sewer lines where the new storm pipeline crosses. (20) Show the interim detention pond profile (at the most westerly portion of the pond) in the profile view adjacent to the storm sewer. f?Of, PLAN & PROFILE SHEETS 3 AND 4: No specific comments. PLAN & PROFILE SHEET 5 OF 9: Plan View Vi t L1, V11 (21) Show location of pipe and inlet (including invert)for existing 30"x 18"CMP arch pipe at STA 29+00. (22) Show a plan view detail of the pipes and ladders for the proposed 132"diameter manhole at STA ��CJ 35+69.58. Show the existing 24"storm pipe inlet and invert. Discuss in specifications how proposed 42" South Site storm sewer interceptor may or may not be in operation and what the recommended Randall Parsons: 8/9/91 Paccar/Houser Storm Sewer Bypass Hydrology Report Page 4 sequence of construction is. Note, why would this not be constructed first eliminating the ambiguous language? We recommend installing the 42" South Site storm sewer interceptor up to the existing channel and installing a manhole with a 42"stub to the south with this contract now. This would eliminate the need for connecting the existing 24" pipe now and may allow you to reduce the size of the 132" manhole. When the South Site storm sewer interceptor is constructed it would then take off from this manhole in the channel. Note, your filling and grading plans rely on the channel remaining operational. (23) Show plan view on detail sheet of proposed flow control manhole at STA 32+07.79. �Y K vtll (24) Show and dimension limits of pavement sawing and patching in the roadway of N. 8th St. (label N. 8th Vu I1� St. in all the plan views). 90 (25) Show more distinctly the location and size of the gas, water and sewer lines where the new storm pipeline crosses in N. 8th St.. P 8 (26) The flow restrictor assembly should be located in the manhole at STA 32+07.79. The rim should be raised to elevation 33 and the manhole provided with a full metal grate cover with lockable access door (note Details above). A berm should be provided around this manhole cover with a top elevation of at least 34 to prevent storm drainage which might exit this manhole from flowing back onto the PACCAR site to the south and instead flow to the north onto N. 8th St.. The berm and overflow area to the west should be covered with riprap for stabilization. , Profile View ( (27) Show the existing gas, storm drainage, sewer and water lines in cross-section and to scale in N.8th St.. It appears that the extension of the 48" RCP may conflict with the 21" sewer line and may require adjustments to the gas and water lines. Contact Dave Christensen, Wastewater Utility Engineer at 277 -6212,for specifications on constructing under the sewer line. The specifications should discuss how the City will approve adjustments in the water lines or the sewer line. �L PLAN & PROFILE SHEET;6 OF 9: VUl[t 1/' (28) Make the same revisions to these notes as noted above for sheet 1 of 9. _ (29) Note, the Key Maps shown on these plan and profiles should be used on Sheets 2 through 5 and they WI tt should all show how each plan and profile sheet relates to the overall project site. PLAN &PROFILE SHEETS ;7 AND 8 OF 9: No specific comments. DETAIL/NOTES SHEET: 9 OF 9: (30) As noted above,we recommend installing the 42"South Site storm sewer interceptor up to the existing channel and installing a manhole with a 42" stub to the south with the Houser Storm Sewer not this project. This would eliminate the need for connecting the existing 24" pipe now and may allow you to reduce the size of the 132" manhole. When this South Site storm sewer interceptor is constructed it would then tie onto this manhole in the channel. Note, your filling and grading plans rely on the channel remaining operational. U PACSI NT:RP:rp y cc: Dick Anderson 'p �.^v�,� ✓ /�I CITY OF RENTON MEMORANDUM Stormwater and Wastewater Utility Section DATE: August 9, 1991 TO: Gregg Zimmerman FROM: Randall Parsons STAFF CONTACT: avid Jennings SUBJECT: ADDENDUM TO REVIEW COMMENTS FOR PACCAR HOUSER STORM SEWER BYPASS AND SOUTH SITE STORM SEWER INTERCEPTOR CONSTRUCTION PLANS This is an addendum to our previous comments today. For the South Site Interceptor we do not agree with the assumption of the restricted 18" and 24" pipes being analyzed under"Inlet Control". We feel that during severe storm events that the downstream pipe system will be fully surcharged and therefore operating under"Outlet Control". Also, the analysis does not show the existing flows from the area to be intercepted by the new interceptor nor clearly the pipe sizing for the new pipeline. If these existing systems are as restricted as the other Houser Bypass line then the downstream 42" pipeline may need to have a restrictor also. Temporary detention storage could be possible in the existing channel with a restrictor in the new manhole we noted in our previous memorandum. PACSIRP2:RP:rp cc: Dick Anderson �� -- _ ---- �� \�A�\\ V 1 I OF R CITY OF RENTON MEMORANDUM DATE: August 6, 1991 TO: Randall Parsons FROM: David Jennings SUBJECT: PACCAR/HOUSER STORM SEWER BYPASS HYDROLOGY REPORT Below are my comments from the review of the Houser Storm Sewer Bypass Pipeline Hydrology Report submitted by SSOE. In general, the report format does not follow the 1991 King County Surface Water Design Manual guidelines as adopted by the City of Renton. Specifically, Core Requirements 2, 5, 6, and 7 have not been fully developed. CR #2: No narrative description of the makeup and general condition of the drainage system was provided, nor a list of existing or predicted problems relating to capacity, flooding, erosion, or habitat destruction. CR #5: An erosion/sedimentation control plan was not discussed nor provided. Although this is a small project to be conducted on private property, the potential for adverse hard-to-detect problems of capacity loss and/or contamination due to sediment conveyance and deposition in the down stream system is large. This should warrant the preparation of a detailed sediment control plan with the possible inclusion of special provisions. The insertion of temporary baffles or weirs to trap sediments, the installation of monitoring equipment, and the imposition of special end-of-job clean-out and television inspection requirements in the downstream system should be considered. CR #6: Because this project will become an integral part of an already sensitive system, special provisions for the operation and maintenance of the drainage system, including emergency access rights, express statements of liability, inspection and reporting procedures, and long-term bonding requirements should be considered. CR #7: See comments under CR #6 above. Randall Parsons Paccar/Houser Storm Sewer Bypass Hydrology Report Page 2 The comments provided below relate specifically to my review of the information provided: o Although the design flows calculated and presented appear to be conservative values, treatment of the entire tributary area as a single basin may not be as conservative or as realistic as defining sub-areas within the basin upstream of the project site. A quick analysis using the King County SBUH program is summarized in Table 1 (attached). These calculations, using the original sub-basins A, B, and C, and their respective areas and assumed CN values but with travel times of 10 minutes (assumed) for sub-basins A and B and 11 .84 minutes (as provided) for sub-basin C, indicate that the design values may be too low for both the 25 and 100 year storms. Predicted runoff values were not provided for either the 2 or the 10 year 24 hour storm events. Shorter time-of-concentration values for each of the sub-basins, given their highly urbanized character, may be more realistic and would result in even higher predicted flow values for each of the design storm events. The consultant should reassess his analysis and support his calculations in narrative form in the final submittal. o By the King County Manual, Table 3.5.2B, sub-areas with 22 and 40 dwelling units (DU's) per acre cannot have only 34% and 30% impervious area for sub- areas A and C respectively, as described in the calculations. The impervious areas must be much higher, as stipulated in the manual. (Conceptually, the impervious area percentages for area C must also be greater than that for area A since DU-C =40 > DU-A =22). o Although overland flow values up to 350' are permitted by the manual, in this area, sheet flow lengths greater than about 100' are not realistic in this sub-basin because of the highly developed character of the area. Based on field observation, sheet flows will be collected and/or concentrated into shallow concentrated flow within distances much shorter than 350' (250' was used in the calculation of the overall basin time-of concentration value (Tc)). Shallow concentrated flows achieve greater velocities for the same grade and roughness conditions. Application of faster travel times due to higher velocities will result in smaller Tc values and larger design flows for a given storm event. o Recognizing that design and construction will proceed with the installation of an orifice restrictor plate, the sizing of the plate based on existing system restrictions should be checked. The analysis provided assumed inlet control on an 18 inch diameter RCP. The consultant should show why this culvert will not be subjected to outlet control (likely because of the shallow slope at which the pipes are laid). Outlet control on this same pipe section will likely result in a much more conservative design flow value. This will impact the sizing of the overflow detention pond. The consultant should also provide a copy of the nomograph used in his calculation. Also, since a profile has not been provided of the existing drainage system, and backwater conditions are not known at this time, it is difficult to assess the validity of generating 2.97' of head over an 18 inch pipe in the controlling manhole given that adjacent upstream and downstream manholes will also be surcharged. It is more likely that only a fraction of a foot of head will be available at this location to drive water through the system. Randall Parsons Paccar/Houser Storm Sewer Bypass Hydrology Report Page 3 o A brief narrative description of the calculations should be provided to lead the reviewer through the analysis process, communicate the intent of the design, and tie together the various pieces of the calculations. o Figures included with the calculations should be labeled and referenced in the text described above. D:91-548:DEJ:ps CC: Gregg Zimmerman P4 rA-n,Lr� c �gw' i 7 7 2V-' � L� G2A-o � ���T VW G t off - W W W __x ^ / coo OO `7 N ENV C4NC; 622t� � - Z N N N G� c VO Or h e t pC61" 4,11A36 14JC) ,�c U�v 0 a-L ' S Cv A,/ DO - �J C f iu e5 �A-4J���� 7V:) W W W xxx moo Y��li/� 6 t7 r ev a C4 C4 C4 4 Ivvk� -)�-j 7)-h r&-- o vo A-4j-g v Guy S771VM O 1,J A-ki-ttv -Th o' & • �� A- � �� 1�61'r7 ___ 0#A# coo r a /rem Ctc S -7r7bL o2z • U., -.r--S _ F77- 57�5-rP w p Z�do • -�7L, 6(Ff 4112 F),-'l kZ-' W MUM __= coo 14-J .�N Na AAA n6 C4 C1 N N N �a F • • bw _ 04 ' OPEN GRATING N Z Z N m --- — ` /�Gh \�\\ �1 / '" - m N 0 aaQ� s p " CHA I N-.,l-WELDED TO o -------• u GRA 74E) —CITY OF RENTON • T1 g9 7 0 •---+ STD. MANHOLE - a �. o 36" 0 CMP YIELD TO %4 Ld ^,. / COAT WITH NO. 1 ASPHALT *� ,,_ �_♦ PROTECTIVE TREATMENT � o � GO` W/ "O SS EXPANSION ANCHORS o 9 14' -0 0. C. AT EDGES ( 1%2" EMBED ) . 1 SHEAR / COAT WITH NO. 1 ASPHALT PROTECTIVE m i GATE \� i TREATMENT PER APWA STD. SPEC � i SECTION 60-3. 01H1 W a s I E=21 . 50 w 36" DIA. SD - y8 —36" DIA. SO _m z '—' o> GAP — 9 • � ' 9. 1 ' 00 x 1 ' -0 PIPE SECTION ATTACHED rz C-AP Ft WITH GASKETED BAND TO ALLOW REMOVAL M \ FLOW RESTR I CTOR (�MlPeRARY 1 SCALE: f4° wcn cn C /r r �- CITY OF RENTON s' Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttmann,Administrator �D 91F AT III September 11, 1991 SEP1 :-' 1991 Mr. Claus Hackenberger CITY OF RENTON Remediation Engineer Engineering Dept. PACCAR, Inc. Business Center Building P.O.Box 1518 Bellevue, WA 98007 SUBJECT: PACCAR Interceptor Project, W.O. #87225, P-7811 Dear Mr. Hackenberger: The City takes no exception to the relocation of the storm water manhole for the above referenced project as described in the attached letter of September 11, 1991. Sincerely, ,2� "n'3i a Gregg Zimmerman, P.E. Plan Review Supervisor cc: R.K.Butler, PACCAR, Inc. Bill Stalzer Randall Parsons GAZ/tp084 R Inc Business Center Building P.O. Box 1518 Bellevue, Washington 98009 Telephone (206) 455-7400 September 11, 1991 Mr. Gregg Zimmerman Plan Review Supervisor City Of Renton 200 Mill Avenue South Renton, WA. 98055 REGARDING: PACCAR RENTON NPL SITE NS STORM SEWER BYPASS Dear Mr. Zimmerman: Pursuant to the discussion you had with Mr. Butler, I am submitting to you the new manhole location at the north end at Station 35 + 64.58 . This will enable us to work around the existing power poles and stays, though the pole will be stabilized during the installation by Puget Power. The above change will be incorporated on the As-Built Drawings. Should you need any further information please call me at 251-7514. Sincgp6ly, eau--sackenberger Remediation Engineer CH/ddm cc: R.K. Butler B. Stalzer S. Wittman - Todd, SSOE S. Perrin, Wilder Construction Company i 32 33 34 'lo = .� _ + CV CV "= M t r% THROUGH +6 �v58 �M SEWER STA 32+00 - 00 v ;c w, SEE I:,••.I:r-tOLE PLAN SG SCALE : ! D y v;,UL I u LUSH)—L , , I J L1,.�. IGNA _. =20.78. �.. 7ti' —� I rl [.'I'• u NCH - - _�.-..�.,, ,' - ___ -• T '�-L_- -=� 1- _ ,• _ _ I I Ir C _. C. ;.IGNAL F �_=--�► - - I�. ,W v, _ -- -- RISER v __ _ -'_��_(�.r ,� - �•� ,N III o�w ta• cr) �' 1 . �; LIGI I i/SIGNAL vI RAIN_04L r � � O co � --,SS VAL. SD. !-- IAA 3o.Io �. `L e _ N32°I2' 35'E -- --- . ,�LE.(r1w. c•1=_'9.1b ^ � _--- 04 10.400 r • --t. . _T Y _r FWALK ON OF EXT ,G :,IGNAL LOC StGw�� LIGH� .T' I TYPE I C6 j"t a AND LOCATION vauL I IFLu ► } �- I ` ��o Rim 29.67 M.H. STA. 35*69. 581 .l; l r I F--- I.E.(NW 6•)=��._� I.,E. cn 0.60 a Ili I C--*-TT -- , . `\ --STORM µH.R1Ia 30.55 I.E.=20.45 S0:)TH (36') Bo W ='1 55+, PROVIDE .�.� 0 EST 2 AST 21.2G E iY PLUG FOR I j 20.00 NoRTr rae•) - ( IL CONNECTION AFFIC SIGI+AL S o; \ --TRAFFIC TGt' TH ST. IS UADE. °D LE a LIGHTS �Ir -��► \ V��rTv IF ! T 'G—:5e,= S.D. F r l ; ; �° REPLACE Wi NEW F 5 i�• .� +CP - —5 �I \ 58 x36 c ASTV C -� DUCTILE IRON CLi we �,�—,� F,G ►l 0\v0 D k SAWCUT PAVEMENT AND PAVEMENT PEI to WIDTH O JCTION LI►�1I ` OFEXCAVA� � , 1 BY CONTRACTOR. 000 w or II 1 v 4 -TRAFFIC SIGN-- cn I ! (FLU r �I ! VAULT S.n..._._._ ti_ /E= Z9.0/ /E :9.06 /E' Z /etZG"(05 /E=2( .B9 I x paved Storage x30.9 3/7 O 32.2 CB 7YPLa 1. CB 7YPE I CB TYPE I BeA55 CAP /N /PE rt'i`1q"' RIAiI 30.(o(v r•:'.:'_ `` i ELE✓AT/O•V = 3Z.Z7 X30.9 Paved x30.7 x /.E.=Z7.Z/ Paved /E- 2X3/.5ti C. �i /V 0/'02'40 '.' �� 1327 /O' 1. ;• 32 3`16 paved -r - .- x 31.7 I� .•< N, ; � X 32.4 t, Paved � Paved staraae r� \� I E 11,000 <r ' - v�>/. / I 0 Lcg Yoc r i 8 I ,I I 30.9 Qi N-j Z-/ _ 'E 27.77-/N /E- 26.77 C , .II LE {.c �'1 ! M �� CB TYPE /�. f Q 1 li GB TYPE I J\� CB TYPE I ,e1,V7 j/\_ Pave., f/ 3/.BZ _ ?j,3 I Paved \ \ R/(/1-32./Z /E.Z7.9 h 1 18 2. 1 2 C8 f x c8 TYPE I /E=Z8. �' ; ty 2 1 .3 ' ! o'er_ 3 ZO.(05ml v pov a � Paved I �d ls-_ ( (at P ` c Gr I37 28 / 2.9 \\ a-� `� `� 4 v 1a A d �' 70 V" Z .44 y I3G9r ZB.Z6, / 7 CB PE I " onM 2.9 0,l � �3•Fi Poved rP/ 3Z.34 4•G / �rZ. /o30,Z �Z' 6 8 O PA RCEL „B 15 storage lb Z OO::�Il'`=j�4 Og-o- --x3Rv'S ENT j1' Q\ ✓�lL. !Yo O7 -- - - �1 J_ c9 �J ..��) ` = x 38-9- - - - -- 39.4- - / ' 9 I1 c 416 4849.p�z ��3'E - G. 7191 j paved Parking m 35'x3.5'WATERUN O WQ- ��/ d- CA c.45EMEN7 PEC. G fl E.4 v� O� C8a v e d NO. 850/0.9045/ U PEC A _ � � PARCEL 85 D.Qrking paved THE CITY OF RENTON - = DEPARTMENT OF r- PLANNING/BUILDING/PUBLIC WORKS RENTON, WASHINGTON 98055 - 2189 PHONE: 235-2631 FAX: 235-2541 FAX TRANSMITTAL DATE: TO: SL1q FROM: gr/T�� SUBJECT: �� cc-Ale— Number of pages excluding cover sheet: CITY OF RENTON "'L Department of Planning/Building/Public Works Earl Clymer, Mayor Lynn Guttmann, Administrator June 14, 1991 Mr. Leland S. Meisbauer, P.E. SSOE Inc. 3015 1 12th Avenue NE - Suite 101 Bellevue, WA 98004 SUBJECT: HOUSER STORM SEWER BYPASS/PACCAR SOUTH SITE INTERCEPTOR AND PACCAR PCB REMEDIATION PROJECT r � I s _ rh-1� htis;z-c �� Pic' -� , S " R1H Dear Mr. Meisbauer: We have reviewed the drawings for the Houser Storm Sewer Bypass, Paccar South Site Interceptor, and Paccar PCB Remediation project. Resubmittal will have to adequately address these issues before we can approve the plans. Our review comments regarding the submitted plans are as follows: 1 . Provide a private drainage easement over the re-routed storm line (see enclosed form). Provide an access easement to the City for the Houser Way Storm Sewer Bypass and Paccar South site intercept r. The form for the acc ss easement is al o attached. (/ icyke �✓14,f 1 f� ✓ac«ss �� s-S {� 2. Include an itemized cost estimate for all construction with the resubmittal. A sample is enclosed. 3. Show all utility crossings that exit on the profiles of storm drain cross-sections. 4. On Sheet 5 (SD4) show a more actual depiction of the 30" X 18" Arch CMP on the storm drain cross-section profiles. 5. All manholes shown as drainage structures for re-routed storm line shall be changed to Type 2 catch basins. Label the size and type of CB's on the plans. 6. Supply a Title Report and sketch showing existing easements. 7. Provide City Standard Storm Water Drainage Notes, with reference made to City of Renton Standard Specifications made (the notes are attached). 8. There is not enough clearance for the existing sanitary sewer line shown in the Profile on Sheet 8 (SD6). There shall be a minimum of 6" clearance between the proposed storm and existing SS line. SS c E� ernfr 200 Mill Avenue South - Renton, Washington 98055 • USA C k ss S/°'/'P/ ',SUE, Inc. Page 2 w/ �oV-El dvf 9. The storm line between STA 5+78 to STA 10+ 16 appear to have only 6" cover. Provide a minimum 2 feet of cover, in compliance with Chapter 4, King County Surface Water Design Manual and existing City Code. 10. Show cross-sectional detail of storm line crossing under all railroad tracks. Identify all railroad tracks. 11 . Identify all buried electrical conduits on the plans. 12. Show invert elevations on Sheet 10 (SD8) of the other two storm lines at the drainage structure at STA 1 +00. The following comments from the PCB Remediation and Drainage Reports will have to also be adequately addressed before this project can be approved: 1. The City requests monitoring for water quality for all dewatering activity prior to the disposal of water. If contamination exists, a groundwater remediation plan is required including information on testing. These comments shall be completely addressed in Sections 3.01 thru 3.03 of the PCB Remediation report 2. In the drainage report for the Houser Storm Sewer Bypass, piped flow is over a significant length, therefore these travel times are not valid. Resubmit the travel time for all reaches in the basin. ( Public Works can supply additional information.) 3. Adjust the CN value for the pervious area to 77. 4. An off-site downstream analysis is required. Since there is known flooding that has occurred immediately downstream from this project, we request that a Level 3 downstream analysis be included with your resubmittal, to adequately address Core Requirement #2 in the KCSWD Manual. 5. In the drainage report for the south site interceptor, supply a hydraulic analysis of all lines that tie into the proposed interceptor line, and provide a sub-basin map of this area. 6. Future development in the south site of Paccar shall be incorporated into peak-flow analysis for the proposed interceptor line. Please include original red-lined drainage report and plans with your resubmittal. Very truly yours, Kim D. Scattarella Storm Water/Plan Review Engineer i Note: All of the above comments are subject to change, pending ERC review. 91-425:KDS:ps CC: Randall Parsons Attachments r r ' PACCAR INCORPORATED SSOE 915006 HOUSER STREET SEWER RELOCATION SECTION 02776 POLYETHYLENE FABRIC LINER 1 . PART 1 - GENERAL 1 . 1 Related Documents 1 . 1 . 1 Requirements of the contract documents apply to work of this section. 1 .2 Description of Work 1 .2 . 1 Provide labor, material, equipment, and services required to furnish and install high density polyethylene fabric liner and accessories as shown on drawings and/or specified. 1 .2 .2 Obtain field measurements necessary to ascertain final dimensions and locations . 1 .3 Quality Assurance 1 . 3 . 1 The high density polyethylene liner and accessories shall be manufactured, furnished, and installed by a single manufacturer, to the greatest extent possible . Manufacturer shall have demonstrated ability to produce membrane similar to requirements of this project, and shall be able to provide a list with location and contact person of same with submittals . 1 . 3 .2 Contractor shall submit a certification from the lining manufacturer stating that the sheeting meets physical property requirements for the application. 1 .3 .3 Contractor shall submit samples of lining material with submittals . 1 .3 . 4 Liner material shall be produced and installed so as to be free of holes, blisters, undispersed raw materials, or sign of contamination by foreign matter. 1 . 4 Submittals 1 .4 . 1 Submit completely detailed shop drawings, including, but not limited to the following: 02776-1 PACCAR INCORPORATED SSOE 915006 HOUSER STREET SEWER RELOCATION A. Full details of minimum physical properties and test methods used; site seaming methods; certificate confirming compliance of material with the minimum specifications; samples ; and user list . 1 . 5 Project Warranty 1 . 5 . 1 Provide written one (1) year warranty, in which Contractor agrees to replace/repair defective materials and workmanship. Warranty includes responsibility for removal and replacement of other work which conceals sheet waterproofing. 1 . 6 Project Conditions 1 . 6 . 1 Installation of liner and accessories shall proceed after substrate construction, openings, and penetrating work have been completed before commencing work, Contractor shall certify in writing that the surface of which the membrane is to be installed is acceptable . 1 . 6 .2 Installation of liner and accessories shall proceed only when existing and forecasted weather conditions will permit work to be performed in accordance with manufacturer' s recommendations and warranty requirements . 1 .7 Reference Standards 1 .7 . 1 American Society for Testing and Materials (ASTM) . 2 . PART 2 - PRODUCTS 2 . 1 Approved Manufacturers : Grundle Lining Systems (Grundline HD) . 2 .2 Liner Material Requirements 2 .2 . 1 Liner shall be an 60 mil geomembrane. Sheet manufactured from high density polyethylene. The sheets shall be comprised of single piece without prefabrication to the maximum extent possible up to at least 22 . 5 ft . wide, and in lengths in accordance with manufacturer' s recommendations for subject application. The sheets to be joined shall be homogeneously welded by hot pressing the virgin material extruded in between the overlapped sheets, and installed in strict accordance with the liner 02776-2 PACCAR INCORPORATED SSOE 915006 HOUSER STREET SEWER RELOCATION manufacturer' s recommendations, and details shown on drawings . 2 .2 .2 Liner sheet shall be standard black. 2 . 2 .3 Physical characteristics Property Test Method Valve A. Density (min. ) ASTM D1505 0 . 94 g/cc B. Tensile Strength ASTM D638 240 lbs/in. at Break (min. ) Type IV width C . Tensile Strength ASTM D638 140 lbs/in. at Yield (min. ) Type IV width D. Elongation at Break ASTM D638 700 percent (min. ) Type IV E. Elongation at Yield ASTM D638 13 percent (min. ) Type IV F. Modulus of ASTM D882 110, 000 psi Elasticity (min. ) G. Tear Resistance ASTM D1004 45 lbs . Initiation (min. ) (Die C) H. Puncture FTMS 101B 70 lbs . Resistance (min. ) Method 2065 I . Resistance to ASTM D3083 +/- 10 percent Soil Burial (max. ) Using ASTM (Tensile Strength at D638 Type IV Break and Yield, Dump-Bell at Percent Change) 2 IPM 2 . 3 Auxiliary Materials 2 .3 . 1 Provide types of sealant compounds, etc . recommended by waterproofing sheet manufacturer for bonding to substrate, for waterproof sealing of joints between membrane and adjoining surfaces and projections . 3 . PART 3 - EXECUTION 3 . 1 Subbase 3 . 1 . 1 Inspection of liner subbase shall be done by the liner manufacturer or manufacturer' s 02776-3 PACCAR INCORPORATED SSOE 915006 HOUSER STREET SEWER RELOCATION representative. Liner manufacturer shall be responsible for the proper installation of the liner. The Owner must approve the liner manufacturer. 3 . 1 . 2 Liner manufacturer or manufacturer' s representative shall have a minimum of five (5) years experience in the installation of similar linings . 3 .2 Prior to Installation 3 .2 . 1 The manufacturer shall furnish complete written instructions for the storage, handling, installation, and seaming of the liner in compliance with this specification and the condition of his warranty. 3 .2 . 2 The material supplier shall furnish complete written instructions for the repair of HDPE material . 3 . 2 . 3 The manufacturer or his designated representa- tive shall furnish panel layouts as required for the liner installation. Final lagoon configuration, attachment details, and survey information needed will be furnished by the end user or his designated representative. 3 . 3 Installation 3 .3 . 1 Surfaces to be lined shall be smooth and free of all rocks, stones, sticks, roots, sharp objects, or debris of any kind. The surface should provide a firm, unyielding foundation for the membrane with no sudden, sharp or abrupt changes of break in grade. No standing water or excessive moisture shall be allowed. The installation contractor shall certify in writing that the surface on which the membrane is to be installed is acceptable before commencing work. 3 . 3 .2 Liner installation shall only be allowed during the following weather or other conditions : A. Air temperature between 40OF and 1040F (as measured 6 inches above the geomembrane) . B. No precipitation or excessive moisture . C. No excessive wind. 02776-4 PACCAR INCORPORATED SSOE 915006 HOUSER STREET SEWER RELOCATION 3 .3 .3 Liner shall be installed by the liner manufacturer in full accordance with the installation details and recommendations of the liner manufacturer' s standards . 3 . 3 .4 Liner installer shall be certified. Certification shall consist of a preinstruction period and on-site certification of any of the proposed installers of the liner. 3 .3 . 5 The manufacturer or manufacturer ' s representative shall conduct a complete inspection of the installation once the project is complete to assure that the liner was installed in accordance with the manufacturer' s requirements . 3 . 3 . 6 Coordinate installation of waterproofing materials and associated work to provide complete system complying with combined recommendations of manufacturers and installers involved in work. Schedule installation to minimize period of exposure of sheet waterproofing materials . 3 .3 .7 Extend waterproofing sheet and flashings to provide complete membrane over area indicated to be waterproofed. Seal to projections through membrane and seal seams . Bond to vertical surfaces and also, where shown or recommended by manufacturer, bond to horizontal surfaces . 3 . 4 Testing 3 .4 . 1 The manufacturer shall certify that all linings are free from defects such as cracks, pinhole, seam deficiencies, etc . This written certification must be submitted to the Owner' s Representative of the Contractor' s work by the Owner. 3 . 4 .2 The installer shall employ on-site physical non- destructive testing on all welds to ensure watertight homogeneous seams . 3 .4 .3 A quality-control technician shall inspect each seam. Any area showing a defect shall be marked and repaired in accordance with HDPE repair procedures . 3 .4 .4 A test weld three (3) feet [one (1) meter] long from each welding machine shall be run each day 02776-5 PACCAR INCORPORATED SSOE 915006 HOUSER STREET SEWER RELOCATION prior to liner welding and under the same conditions as exist for the liner welding. The test weld shall be marked with date, ambient temperature, and welding machine number. Samples of weld 1/4" to 1/2 " (10mm to 20mm) wide shall be cut from the test weld and pulled by hand in peel . The weld should not peel . Seams should be stronger than the yield strength of the material . Seams should exhibit a film tear bond. The weld sample shall be kept for subsequent testing on laboratory tensometer equipment in accordance with the applicable ASTM standards . Random weld samples shall be removed from the installed welded sheeting at a frequency of 1 every 300 feet . 3 . 5 Cleanup 3 . 5 . 1 After completion, remove any masking materials and stains from exposed surfaces caused by waterproofing installation. 3 . 6 Protection 3 . 6 . 1 Institute required procedures for protection of completed membrane during installation of work over membrane and throughout remainder of construction period. Do not allow traffic of any type on unprotected membrane. END OF SECTION 02776-6 i a Q,g � ��,,c� .. ?v n cJ .�.���U� d�1-b 4'� :.�('' i (�1 J•� �=?�, ' '1.� .Lo�„ ,� Lis �► -�Z aQ W-daug-, -O VW, oil $'L o e" -a ' II Wl I►"tintJ _r ��- 'J 0 '�� SJ7. � N►NJN N-+ 000 �t vV � P�� ►4 �r, vet v ✓ +� �� '1 �/r'�v s fi n- 'Sv Q.. {A VI 1A Anon �C .-Cl a aaa C404r 21 ,E "1 ,47 o 'T°'("A I,� �n G�vry r►,!G k n D +� �� = 3 I . �'? � 7 S 3 00 ` -0(2 � On Ce CITE' OF RENTON =a1 Planning/Building/Public Works Department Earl Clymer, Mayor Lynn Guttman,Administrator June 17, 1991 PACCAR P. O. Box 1518 Bellevue, WA 98009 Attention: Claus Hackenberger SUBJECT: WASTE DISCHARGE TO RENTON'S SEWER SYSTEM Mr. Hackenberger, Upon review of the submittals made by you, we are approving, subject to Metro approval, your discharge of treated waters from your site to our sanitary sewer system with the following conditions: 1 ) An approved connection to the City's system including side sewer permit ($20 or $100 depending upon extent of work involved). This connection will be a temporary connection and treated as such; however, we are concerned with the method of connection in the right-of-way and how that could affect the roadway. 2) PACCAR or their representative provide monthly flow reports to myself and Elloyce Sumpter (Utility Billing). These reports will be in cubic feet and submitted no later than the 1 Oth of each month. 3) PACCAR or their representative will keep the City apprised of the status of the project and any significant items that may affect our system. If you have any questions or need any additional information, please call me at 277-6206. Very truly yours, XL Michael A. Benoit Wastewater Utility PACCAR/MAB:If cc: Bruce R. Burrow, Industrial Waste Investigator-METRO Randall L. Parsons, Storm water/Wastewater Utility Supervisor 200 Mill Avenue South - Renton, Washington 98055 09/22/92 09:50 FAX 206 454 0220 ENTRANCO ENG: PACCAR INC. Z 001/004 E N T R A N C O ENGINEERS•SCIENTISTS •PLANNERS•SURVEYORS 10900 NE ath Strwi,Suite 300 (206)464-5600 Beltevuo,was,},inoton 98004 Fax No. (206) 454-0220 FACSIMILE TRANSMITTAL Date l I Z Z t-L PLEASE DELIVER THE FOLLOWING PAGES IMMEMATELY TO: NAME _ ( CLr V �IC'Sr1P_I' FIRM/AGENCY CITY FAX NUMBER (�) Z35� - �(oL4-7 FROMa�� N � PROJECTIPROMO NAME �ARbiw %uE PROJECT/PROMO NO. " 60 REMARKS/ITEMS TRANSIMITTEDi The three attached pages show the difference in flows and water surface elevations between the previous design of the Garden Avenue improvements and the proposed revised design. Conveyance down the Garden Avenue system is essentially the same for both options, and the water level at the PACCAR outfall is lower for the revised design. However, the water levels on N 8th Street are higher with the redesign, and the flooding conditions are slightly less improved (0.28 acre-feet) than the previous improvement design. It may be possible to decrease the N 8th water levels by increasing the size of the new 42" pipe to 48". A summary letter will follow for your records. HARD COPY ❑ WILL XWILL NOT BE SENT A ) NO. OF PAGES (Including Transmittal Sheet) 1 IF THERE ARE PROBLEMS WITH TRANSMISSION, CALL (206) 454-6600 Place Transmission Sheet in File Box with Copy of Transmitted Material fit' 09/22/92 09:51 FAX 206 454 0220 ENTRANCO ENG. PACCAR INC. Z 002/004 SHEET NO. / OF 3 ENTRANCO JOB NO. PROJECT G.4RD" A!/E. CALCULATIONS FOR AAJAZ-YSCs= E3* GARDE• s,a i�Fycsio l/ MADE BY �?IJ/J DATE 9 z z 9Z CHECKED BY DATE WSE� A�' r?N /201 Po DES/6n/ L��S/6� Cc�} �2 Oiq _ _ V✓S�L T- GtiTFAI- C.PE�grco) �� s��?6✓. �EY/SED 7* .STR 007- yJ y8 dEs/6n/ Dws/6i4 Zy.2 24�,0 �'L cxJ ALcM76 rti Cl�pDec�, r`�E►! .�EYac�O 1 Z.? G� F /A/ DES/GN 37.5 AV 72" s.a P�E1( RF✓isE.a ,a�s�dv De�s/6�✓ 99.o /'fAX/�?vM WAYFR 5Lj R FAcE EL,F✓Rr'�o�J C h�SE�) o/� ®FHA 4?.04J COR24�5PDXWIA1G 70 Z1A5,S1&q AZZ4J. 09/22/92 09:51 FAX 206 454 0220 ENTRANCO ENG. 444 PACCAR INC. 003/004 SHEET NO. 2. OF 3 ENTRANCO JOB NO. i- 9 i a 3 i -6 o PROJECT (S19RZ)" AV19. CALCULATIONS FOR DT?AUUG AWAZ- 5CS. �� �AR��.cJ SD. /7�✓/S/ow MADE 8Y DATE 9 zz 9z CHECKED BY DATE W5El- A7- MN /Zo/ �,q-r�Q, ,r.� L.f=.V4'r1 ►J DES/6A/ ��� 21.7 C.�Erloy�'c) � �^Z�✓. BEY/SEO N. 8 -7-R,6�67- 412 DEs/bn/ DES/6�v ye" FL�zJ �?LcM7l� 7 CApoP�) �6►! �E✓�D L�ESi6.d d�Sia.y 72 ye' Ec � 25.1% racQE,�SF Ta pmv. 7�F.S'l6.�! sroi?r1 Z s- sy. Z 6.D. ARE-✓. ��✓u�o DES/GN Des/G�! F1vcJ •� 72" s.a 37.4 3 a.2 R�EY Rom✓/SE.Q /05AAC4 103.V 11AY/r1uM WAMR 6L)RFAcE E ✓Ario�l �tJSE�) �� �EA(' RvcJ C0RRZ.SA00,,)D lAJ6 /��SJ L.TS 73ASE'b o�/ •�vS/rftJ �aCT�A� T�E1/�CS/Gu/S 09/22/92 09:51 FAX 206 454 0220 ENTRANCO ENG. PACCAR INC. Z 004/004 SHEET NO. 3 OF 3 e ENTRANCO Jos NO. PROJECT GARvE,✓ Al/E CALCULATIONS FOR Y R40z/G A)IUALYSCS= (3-* f (SARZ)4 0 S..a i��✓.CSio ti/ MADE BY DATE 9 z Z. 9Z. CHECKED BY DATE WSEL Ar M11 /tor _DES/�/_ DESI6�✓ 2 7.9 28.0 f�9CcA�? 10 'SlZ"O/q _ _ _ _ 1r1/S�C AT GwTFALL �^ /�i�?6✓. REV/SCO DES/bn/ �E5�6N N?" y8• 2 y6" C/9Do.eo) r�E'y, iQE✓�E1� d�si� D�Sis.� 7Z At SI8` V' Ab "1 sy rs Z �R6✓. ?E✓ISED DES/GN DES/GN Z P/�EY �?�✓isE� .D�/b1/ I�ES�bra /yAY/�[JM WATER �Sc1 RFACE E�,E✓,g�-iaJ C h)SE�) O�Z f 69-< A40i J aF'S/6,4/ FLv4J. R,r:svLTS e-XC -R qA) 09/22/92 14:09 FAX 206 454 0220 ENTRANCO ENG. PACCAR INC. Z 001/002 4DE N T R A N G O ENGINEERS•SCIENTISTS•PLANNERS•SURVEYCHS 1D900 NE Bin Strout,Suite 300 (toe)454.5800 80&Aw,wushingtm 98004 Fax No. (206) 454-0220 FACSIMILE TRANSMITTAL Date Z Z 'L PLEASE DELIVER THE FOLLOWING PAGES IMMEDIATELY TO: NAME ("!ar 7pie'--e-m er FIRM/AGENCY CITY FAX NUMBER { } Zr - �o6L"7 FROM PROJECT/PROMO NAME �AROF'V /qyE PROJECT/PROMO NO. 03 J O REMARKS/ITEMS TRANSMITTED: The EXTRAN model was used to ascertain the effects of using a 48" pipe to tie into the 72" line on Garden Avenue in place of the proposed 42". The model results are shown on the attached page, and indicate that the revisions with the 48" connection will function in the same way as the approved design in terms of water levels along 8th Street and flows down 8th Street and down Garden _ Avenue. The amount of flooding would also be expected to be reduced as in the original design. HARD COPY ❑ WILL ❑ WILL NOT BE SENT NO. OF PAGES (Including Transmittal Sheet) IF THERE ARE PROBLEMS WITH TRANSMISSION, CALL (206) 454-5600 Place Transmission Sheet in File Box with Copy of Transmitted Material a-01 uk He+ arp]] 09/22/92 14:09 FAX 206 454 0220 ENTRANCO ENG. 444 PACCAR INC. 2 002/002 SHEET NO. OF 49 ENTRANCC JOB NO. PROJECT GfJRDew AVE. CALCULATIONS FOR ,y01?AUUG �lvL��ycSCs� � �- AR���1 s� i��✓,cs�o�✓ MADE BY 2�Q--) DATE 9 z z 9z CHECKED BY DATE WSF4 gr 11,4 /20!'PRICY., RevZl;F-o .��v:Xa DES/6n/ DEsl6^, 27.7 ' Z�.� v8�� f39ccAR Sl2"Oiq A9Cc!}.Q V✓SF4 A r 6uTFALL �~ �i�6✓. BEY/SED 8 7N S-rREd'T E�vFo) dES/6N D�ESl6n1 YB• y.2 i �s 2 V.t'frs it ,;Wov. lfev fEO AES/6n/ 0C S�e,J �l �¢ If � l g2.9 Q2,a �� ,zN yey G� a 0 FR6✓, w4FV1 —=o DESIGN 17ES/6A! A.rs, 3 7.1 C;,3 3 9.8 6s3 F1vcJ i�✓ 72" s.[x !o S V a 43 /oy.o &ts r'1AYir?uM WAr�R �SVRFAcE EGE✓�'i�J C hJSF�.) o/? BEAK F,COtJ CoRR�SA��aInJG '� ZEES/6� FLvtJ, s�F�cJLTS 73ASEI� o.�/ S►'✓�r1 EXrapAhd �Fi/�Cs/c�c/S GARDEN AVENUE N. STATION 0+00 ` --i t CC) I GARDEN AVENUE N. STA 0+15. 5 = PROJECT STA 0+00 SDMH (VAULT) I.E.=20.31 ;E� REf�IOVE & REPLACE PAVING ( TYP ) RE.� & TA. 0+20.42t �.E.=20.33 ;try :20.81(W) I.E.=19.43 'N) CONCH U I.E.=19.01 (S) SSMH RIM=29.7 GARDEN AVE . N . G' ' 8 Sc - - - - ---- -------- ---------- Ioo —INLET - - -- - - --------------------------- S ------- -------------- ------ ---•----- - S RIM=29.41 I I.E.=26. IN 48' SD _ -- - ------- -------------- -11 - -- D ---------- -- -- - -- --- - --- �•----- ---- ----- -- - - ' l.I. • 1 i_ ----------------- ------- ----- -- ;---------------- ------ --------------- -------------- - 30- _ -72 N 00032' 17' E - ' -,, TSF'4+'1 46( I oi, ``~ ;" ►� STAO O0tC44a AT (E) `� '; I - 13' 0I4PER CII:Y OFF ,a` . _ : . c '7C I�j 72 �� 86 90 GARDEN AVENUE N. M H I STA D+-?(v- 00 2► Lt STAT I ON 0+00 cA P x 15T u 2 6'4 �, 'PAR G IT SD 5—�p P LA 3, 2 ,�, MAT GARDEN AVENUE N. 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