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WTR2700749(2)
Metro Treatment Plant 1982--1983 Correspond. tN-749 1+ BEGINNING OF FILE FILE TITLE G r CA lft P / a „ t C o rreS� on Abe nce Mr= Ro „ Municipality of Metropolitan Seattle Exchange Mg. • 821 Second Ave.,Seattle,Washington 98104 July 26 , 1983 Mr . Bob Bergstron City of Renton Municipal Building 200 Mill Avenue Renton, Washington 98055 Loss of Floodwater Storage Volume Due to Construction of Gas Line Berm Dear Mr . Bergstrom: We have investigated the potential loss of floodwater storage volume due to the construction of the berm for :elocation of the 20-inch diametez gas main in the vicinity of the Renton treatment plant. This investigation was initiated following our meeting in which you stated that the area south of the berm would not be available for floodwater storage, or at best would be filled so slowly as to cause flooding problems upstream. You suggested that the berm be provided with cross drains or that excavation work be performed to allow f= odwaters to be efficiently conveyed from the north side of the berm to the south side. It was the Municipality' s claim that sufficient floodwater storage volume would be provided by excavation of the P-1- channel under the Renton Enlargement IIA contract to more than compensate that removed by construction on the new dikes and the gas line berm, including the area between the dikes and the berm. Our calculations sl...., that the berm will remove approximately 4,300 cubic yards (cy) of storage volume; the area between the berm and the new plant dike contains approximately 12,300 cy of storage volume. Both volumes are based on FEMA flood studies. This still would provide the City with excess storage volume over pre- project conditions as follows: kECE1VE0 JUL 2 e w3 ary W NeNN, Ui1gtlE[ FNEIXE[NlXN J f Mr. Bob Bergstrom July 26, 1983 Page Two Excavation from P-1 channel + 60,000 cy Volume removed by new dikes - 27,500 — Volume removed by gas line berm - 4,300 �y Volume between dikes and berm - 12,300 cy Excess storage available + 15,900 cy Based on these calculations, we believe that no additional drainage work in the berm is required, if you have any questions or comments, please call me. Thank you. Very truly yours, avid G. Hammond Project Manager ' DGH:km cc: Mr. Dave Healey, Brown and Caldwell Engineering June 7, 1983 51102.00 Ms. Anne Symonds, P.E. Consulting Engineer 11527 Exeter Avenue Northeast Seattle, Washington 98125 Subject: Fireflow Analysis for Metro Renton Wastewater Treatment Facility Dear Ms. Symonds: This letter summarizes the fireflow capabilities of the City of Renton's Water System to supply Metro's Renton Wastewater Treatment Facility. Computer analyses simulating the three alternatives to supply Metro facilities were performed as displayed in the attached figures . The analyses were based on a 12-inch diameter pipeline on Monster Road, a 10-inch diameter pipeline from Monster Road to the meter vault , and an 8-inch diameter pipeline from the vault to the elevated tank. Results of the analyses are listed below: Hydraulic Available Derated Residual Elevation Fireflow Fireflow Pressure USGS Datum Alternative Location (ft.) (gpm) (gpm) (psi ) 1 Top of Elevated Tank 146.6 2.126 1,253 0 r 2 Base of Elevated Tank 109.1 3,394 1,253 11.5 a-5 3 Intersection of Monster Rd. 81.2 4,572 (Not derated 20.9 and Entrance Rd. since velo- cities are acceptable) In Alternatives 2 and 3, the velocity of the water in the pipeline from Monster Road to the Elevated Tank is in excess of 14 feet per second (fps), or approximately 30% greater than that allowed by the Washington Survey and Rating Bureau. Although this flowrate is physically available, there are 1410 Market Street,P.O. Box 1180,Kirkland,Washington 98033(206)827.6400 Ms. Anne Symonds June 7, 1983 Page 2 potentially dangerous and severe consequences associated with allowing that flowrate to occur. We recommend that the safe capacity of this pipeline be derated to 1,253 gallons per minute based on a maximum allowable velocity of 8 fps. The fireflow capability for the analyses was based on Insurance Service Office's (ISO) criteria, which is used by the Washington Survey and Rating Bureau, the local rating company. In accordance with ISO criteria, the Water System was simulated experiencing a maximum day demand with the single largest source of supply, Well No. 8, out of service (i .e., due to failure or maintenance or any other reason). A summary of the operational conditions used in the analyses is as follows: o Minimum service pressure of 20 psi in the service area during fire demands. o Well Nos . 1, 2, and 3 are in operation while Well No. 8 is out of service. 0 Springbrook Springs is supplying the System at 1,300 gpm. o Talbot Hill Pump Station is operating at 1,500 gpm. o The Mt. Olivet Pump Station is operating at 1,700 gpm. o The Windsor Hills Pump Station is operating at 1,950 gpm. 0 The Talbot Hill and Mt. Olivet Reservoirs are both in operation. A copy of the computer output has been retained in this office for future reference. We have not forwarded a copy of this letter to the City since your course of action will need to be developed following review of this letter. As a courtesy, we have forwarded a copy to Mr. Rick Gilmore of Blazer Engineers, your subconsultant. please contact me if you have any questions or comments regarding these analyses. Sincerely, RH2 ENGINcERING, P.S. Richard H. Harbert, P.E. cc: Mr. Rick Gilmore, Blazer Engineers . y3 i 0 = 967 Opm �. �. V = 2.7 fps j M E T R © Elevated Tank , o 1 5 P - 0 5 A � 'L „1168 gpm \� 3a3 fps 1 sue— IN`' 1 Condition Top of Elevated Tank + Pressure Residual = 0 psi Available Flowrate = 2126 gpm Derated Flowrate = 1253 gpm 1532 gpm i 4.3 fps M E T R . t J\a\ t ; ti k � a <— Elevated O Tank A L 1861 gpm�� 5.3 fps LAMP f ` 'u Condition 11 Base of Elevated Tank Pressure Residual = 11 .5 psi Available Flowrate = 3394 gpi Derated Flowrate = 1253 gpm 2067 gpm i • 5.9 firs r � ' M E T R �? w . , � a 1 .7 15 P O 5 A L , `�\ r'e Entrance Road I 250 Ogfps i ♦��1`y t eel' \ ;u Condition Ilk Intersection of Monster Road arid West .Entrance Road Pressur.e Residual = 20.9 psi Available Fiowrate = 4572 gpm 1 Hs Engioee. no June 16, 1983 51102.00 Ms. Ann Symonds, P.E. CONSULTING ENGINEER 11527 Exeter Avenue Northeast. Seattle, WA 98125 Subject: Fireflow Analysis for METRO'S Renton Wastewater Treatment Facility Dear Ms. Symonds: This letter provides further information regarding the fireflow capability of the City of Renton's Water System to supply METRO's Renton Wastewater Treatment Facility. The available fireflow -ates listed in the letter of June 7, 1983 are correct. However, after detailed analysis of the three computer simulations, it is important to note that the pipe segment from Node 54 to Node 316 (along Monster Road from Southwest 7th Street to the west entrance gate) ranges in ground elevation from 25 feet at Node 54 to 86 feet near the base of Metro's elevated tank. Based on this information, low (less than 5 psi ), or possibly negative pressures could be observed in thir pipe segment during a fire, under conditions as simulated in Alternative 3. Although the flow rate listed for this pipe segment is physically available, the low or possibly negative pressures encountered are potentially dangerous and are not recommended. To avoid low pressures or cavitation in the distribution system, Ins -rance Services Office criteria recommends that minimum pressure of 20 pounds per square inch be maintained ir, the distribution mains during fire conditions. Therefore, it will be necessary to de-rate this pipe segment to approximately 1,530 gallons per minute, which results in a total de-rated fireflow capability of approximately 4,036 gallons per minute for Alternative 3. Enclosed is a revised summary of Alternative 3. Due to the time constraint initially imposed for these analyses, this information was not determined until after the analysis of the output was completed. 1410 Market Street,P.O. Box 1180,Kirkland,Washington 98033(206)827.6400 Ms. Ann Symonds June 16, 1983 Page Two If you have any questions or concerns regardinyl these fireflow analyses, please do not hesitate to contact me. As a cou _asy, we have forwarded a copy of this letter to Mr. Rick Gilmore of Blazer Engineers, your subconsultant. Sincerely, RH2 ENGINEERING, P.S. 4dO4..W- X/ Richard H. Harbert, P.E. cc: Mr. Rick Gilmore, 8lazier Engineers •4 - .---� G.E. ' = Derated: i53OWm • - ; 2067 gpm i 5.9 fps i y M E T R tO.E.- $aL�s� — D 15 P 0 5 AI -L 1a Entrance Road I 7.0 gf PS l ear•'•.'-_�—.cam � \. �\%/ : �i. / ` /- /�%' Y� .-. 'f, �. `nl .�' Condition Ill Intersection of Monster Road and West Entrance Road Pressure Residual a 20.9 psi Available Flowrate = 4572 gpm Derated Flowrate = 4036 gpm Engineering -f.4 June 7, 1983 t7 as s1102.00 Anne Symonds, P.E. Con C 0 Consulting Engineer 11527 Exeter Avenue Northeast � 1� Seattle, Washington 98125 [fit � Ai.V Subject: Fireflow Analysis for Metro Renton Wastewater Treatment Facility Dear Ms. Symonds: This letter summarizes the Fireflow capabilities of the City of Renton's Water System to supply Metro's Renton Wastewater Treatment Facility. Computer analyses simulating the th ee alternatives to supply Metro facilities were performed as displayed in the attached figures . The analyses were based on a 12-inch diameter pipeline on Monster Road, a 10• inch diameter pipeline from Monster Road to the meter vault, and an 8-inch'diameter pipeline from the vault to the elevated tank. Res--Its of the analyses are listed below: Hydraulic Available Derated Residual Elevation Fireflow Fireflow Pressure USGS Datum Alternative Location (ft.) (gpm) (Spm) (psi ) 1 Top of Elevated Tank 146.6 2,126 1,253 0 2 llase of Elevated Tank 109.1 3,394 1,253 11 .5 �3 j Intersection i of Monster Rd. 81 .2 4,572 (Not derated 20.9 and Entrance Rd. since velo- cities are acceptable) In Alternatives 2 and $, the velocity of the water in the pipeline from Monster Road to the Elevated Tank is in excess of 14 feet per second (fps), or approximately 30% greater than that allowed by the Washington Survey and Rating Bureau. Although this flowrate is physically available, there a•e 1410 Market Street,P.O. Box 1180,Kirkland,Washington 98033(206)827-6400 Ms. Anne ymonds June 7, 1983 Page 2 potentially dangerous and severe consequences associated with allowing that flowrate to occur. We recommend that the safe capacity of this pipeline be derated to 1,253 gallons per minute based on a maximum allowable velocity of 8 fps. The fireflow capability for the analyses was based on Insurance Service Office's (ISO) criteria, which is used by the Washington Survey and Rating Bureau, the local rating company. In accordance with ISO criteria, the Water System was simulated experiencing a maximum day demano with the single largest source of supply, Well No. 8, out of service (i .e., due to failure or maintenance or any other reason). A su,waary of the operational conditions used in the analyses is as follows: o Minimum service pressure of 20 psi in the service area during fire demands. o Well Nos. 1, 2, and 3 are in, operation while Well No. 8 is out of service. o Springbrook Springs is supplying the System at 1,300 gpm. o Talbot Hill Pump Station is operating at 1,500 gpm. o The Mt. Olivet Pump Station is operating at 1,700 gpm. o • The Windsor Hills Pump Station is operating at 1,950 gpm. o The Talbot Hill and Mt. Olivet Reservoirs are both in operation. A copy of the computer output has been retained in this office for future reference. We have not forwarded a copy of this letter to the City since your course of action will need to be developed following review of this letter. As a courtesy, we have forwarded a copy to Mr. Rick Gilmore of Blazer Engineers, your subconsultant. Please contact me if you have any questions or comments regarding these analyses. Sincerely, RH2�ENNGGIINEEEERING. P.S. Richard F. Harbert, P.E. cc: Mr. Rick Gilmore, Blazer Engineers BROWN AND CALDWELL ENGINEERING DESIGN DIVISION �+.. MLANTA ♦- d.. UAU.A: LT WORTH 'N EOWNE OAVWL PARRY PAUDENA WA MENTO (Zo4) ,291-y000 SILAII E TUCSON Sec N/e Wa r J IMNUT CREEK 'SM NORTH DROA1WkV WESTWOOD 11IALNUTCREEK.CA14595 (416)4974ONe I , M � � • __ _ _ _ _ _ I _ . - _mod t Q = 957 gpRl V = 2.7 fps j M E T R Q F \ 4 • ` 1 Q <--Elevated Tank D i5 P • O S. AlL � re �J 168 9Pn► 3,3 fps �\` •'� . r Condition T-op. of Elevated Tank Ik Pressure Residual = 0 psi Available Flowrate = 2126 gpm Derated Flowrate = 1253 gpm 1 - 1532 gpm 4.3 fps ~ M E 1 n i lZ <— El vat d Tank Al R. . ._ . O 5. L 1 1� -� `X 1861 gpm�� 5.3 fps �„ ,...-.- � �— 24 ' ,62 Condition II Base of Elevated Tank U •: Pressure Residual = 11 .5 psi • Available Flowrate = 3384 gp Derated Flowrate = 1253 gpm �1? T T 2067 gpm + 6.9 fps k . M E T R i � � i • `� Entrance Road \7.0 fps � ;62 Condition Ilk Intersection of Monster Road and. West .Entrance Road Pressure Residuals 20.9 psi Available Flowrate = 4572 gpm ANNE C. SYMONDS, P.E. 11527 EXETER AVE NE (206)364-2274 CONSULTING ENGINEER SEATTLE.WA 96125 PAGE OF y PROJECT 's7tJTO^.` T1=C1Y' l- 1T flJy BY j DATE CLIENT E�A G CHECKED DATE SUBJECT r.IT\4 GL ,,j yTO WdIV—i'—i� NO I iI I I I i 1 I -- -Pn r P 'F 11l_ �Pe 'I 'EnPtJ' _ ��19o��o5S __ PEA IG' PPE lll C I ---�,D L F Qtw I 1 V I I I tl ' I ��1�■t���i �■�►7ri■■ ■ is M VIM 010"I =".2 Ka on VIPs rsullmt��m�e�^��t��a■■■ � sn s mnne Amon REA . \1■■■!1■NNNmmmm■W■■■N • IlI■■■tl■■■■►\N1I■N■►�N■\■■N RINSE\�■N■►/ simmimiN■1�■■ \N■ai■■rm L■N■1/N■INN m1mrf PldlW ...sN/ANnN E�" i - ■'!li7®�t'��'�Ifll■NL�-'S11�Ik� - NN � 6■N 2 - - �- i■� i -' ice- i■�Na �i■e�■�ea��■�eNN■N ■F7i N■■■�� - ��N■NNN N N■N N CNN■N _ ILN■ - N � ■■■■■■ N■■■■Ni■iN .■E :_ 3IlILS■■■SEE■ ■■■N■■■N ■lid. ; . . �l7.?ryG'�11�T !! li ■�"! i J ■■■■■■■■ ■o■■■■■■■■■■■■■■■■■■■ ■■H■■■■■■ ■■■■■■■■■■■■■■■■■■■ ■ ■■■■■■■■■■■■■■■■■■■■■■■N ■H■ ■■■■■■■■■■■■H■■■■■■■■■N N■■■■■■H■■Hm■N■■■■■� H N�NNl�H�N■■■■■■■■■� � ■!IH• - ■■■■■■■N■■■■■■■■■H I mm- mmmo fiN■■ pp .COR.s■■■■�■■■■■■1/■ ■■■■■ 311OW■■ rismME■e■■■■�■■H�n��R ■ f.!'■T.■■■■ ■■ N■?■■■R■ N ANNE C. SYMONDS, P.E. 11527 EXETER AVE NE (206)364.2274 CONSULTING ENGINEER SEATTLE.WA 98125 L PAGE Lt OF 1 a+OAC, 1 �T \ BY 2 ClQ DATE MA ZG 1�1i CLIENI Z it C- CHECKED DATE su"cT C_17,i FtpuJ fJPAv T rOvJSI Joe NO i i (Ep M1WTE a-' 4L_ ldW� E cssuag BPSOL pm) — — PLf , + . I E WE 1 04 ., - �1A REND viRce' i r aR .f�' .• .]C eMfi'al' zwpr / .w Nun ro,Icc[=, sN.•r lY[O.O�- IKC RuaD L.h'•l'/e-•W e1+ f? 3 i RTLO TOR NfFD iO KC[i= S.Mr• tJ rl+ /. , S @ E^TR.INGf TO KC[=S MN. � � e•wPPIY _. RR((Ef(( DETAIL SCALE q•. N•aaa•R \ �— G e t1 r.�7 c'.wnR _ u War s p"�%R[fudOP �N�iis NvcN�.w.' Yc A. Stw:+ac wPf R+u NNL<. ROOF PLAN n uESN COY [ = �'�� s Notr t ,ZF"-�7"J 1 -eN[w RARNN \yi'e n`.5,. es SCALE '/: r- • p E'e as ILWe.RiS °. ,�. DETAIL SCALE '/_•I'-O / y cz WATER EP i a/ alfwo[plGx fY/��p�p-G Rt-, SPRfE ` u [ TING, O,eG f' - yytfl_.r Lll.s :r —I PRi orvC[eP nfi§_ ` lcl ewrlf I. OVfll60N'R'NC Crt Ni1fRp- OF'ERAaw RM16y ' '��� ti ✓ •doc OV[Rhow 4 tflf O✓[RitGM RN¢ I Pu4L1Ne."&f- .. T'•14 . tB !. 'I d!oI D [ TYPAN /:Pld cwvE NOTE RC"cfs SNAn MJ6r. E75.rS I G[ = 'o 1w wcs� t[l.f --i 14-wdR _, SR Al R / 0.5+wtrslwcrrr-. es.s %f•w[u 2ls.01 MK,w�wif AY' !. '-� IRAO l -•-- -- - —_- DETAIL DETAIL� . SHELL TO ILI PURLIN TO SHELL SCALE I'/=•I-0 NO SCALE 1 'MIS {, /S�G IP 1i'Y.E[L�/i�I PY,Mrl4 1RG �FN}CR ORfw II I 1 l0 DG4NT rp�i�Gy��rtR ox[IapY ! - !at'f1D 51Ef. PI.f G✓6. 9C[.Row ru.fr Tl1.R SG•FLJlOw rw[r tt[I i. I I I . pN•F(W�,TyOE eF npA(OT✓NyO�{4 O -.1 E�(4[P'�iffNABRW,ING •� � PLAN BEIDIM ROOF j y� 1 SCALE, 7•I-0 O *-.� 6 •�Ai a t. J. K• I. e'Q MRR DY'[RF.PV ��t qwl t `- '1/C`5 D /SFRCf I I rrK,DE l[Cf- co w TeR e DETAIL AccEuaruti I ,. h ^ETAIL lu As rBV SWRY ERUR Grit ,R[[c bsr n/sesz i r �- daNP�,rGae tfri GROUT FITTING HORR AND VERT SMELL JT I , tnl"p; SCALE S"•� 0 .f ad. TORR NO SCALE R.MGi ti.•1 e +t. 1 ^C1. I'!'Sl�rffxf Sric - d''ct MNN'R OM4Rnw� Rt,t S✓= Ee t 'SA[ �� �f Aw N[TN[[N A� K fRrWn "Eit ��— Md fA•SNftL - V; /. NYIn r01Ni�'1 Mwf R+ML / {•,► - I,. p Bpi' h\ 7 f �R N. I i' 1 y I: -. 1(['.I•Rfr.rE RR/G N: r uMif1.'IS 1 =3.i �j' k• / S[f r w/esr j 1 r iP r s' j- Iurrt " ` h�. r A- F'- fRV oL.Miu R ^ �• . E O Ill M rvAur �'r�jj1, on ,,,��..�� �� . •/ _..__ _ 1 a Ni /n•CT NNiCR-N y lnf- 0 aJEi f + 4N Az Rs dk,v N,• 4w Nor R 4•f[f• rtAears tszo Kc(E$//,R. �.1 I 1 •i4' A Sl1 crr.1/ted, S:04:DCEr.ilBi� 1 $4 •�'°te' A DETAIL e5 THIS DRAWING REDUCED 11 1, 61) SECTION set rh ar. DETAIL sl s SECTION u: SCALE '/j•I'-o , SHELL TO SOT R. TO HALF SIZE PLAN AT R OF ACCESS MH SECTION A, SCALE '/_•I-o �J L SOTR JOINT DETAIL SCALE,3/6"--0 SCALE •I'-O N WATER !TOWAGE TAW S6`�Z.. SCALE S"•I'-0 TTLE .,B3pp._� RENTON SCALE s•• -o M E T R O P O L I T A N S E sr sT E M TANK PLANS. SECTIONS AND DETAILS „p' so MUNICIPALITY OF -My,.,,��.sif. .:i.�, AS Nor[o _ .�__ n.r no. .[[. ....•%(%� -'Weds' ' - ----- -- -- - �. I(j I•p iw6Y.n 1•w [[C. .nG .==06�.1F= � � •'j - x - ;Ef•Y 510 R.'Vua- 9 �O • p p. \• L.O.. �S• co.Ea R 2'ah1 _.. qe♦ eoEn-.. A T � -�'\ -le� PEiuf arN6 d ` li Sew if'l/ 1 wpaE IIW9► i�Ir �. t=O f0 '_IIL �� - NfoN+E+E 6AYarT �Pjl `T/ 1 _Ysala• NYGev[•a VG+ r�°D- `-•A./a' 6/ / DETAIL . `_/#9•� sfn DETAIL SECTION 1� / ROOF HATCHES 9F•p - arms fGC L 1•• 1•-p TANK MANHOLE fCAIE-'�/�' �•��NDLf SCALE S"•I'-0 c Art j Ey,9'co.*aa zql a/t•!C'°G auT+q ovf) ' \ r711� /r i Iptf FG9 7Y•�AOP �Cw,u RA/alNf t'-'i �1 t4 D la%4!°! °t (-wA IEG I'H3/af o'N% PLAN OF VALVE PIT E. SCALE• •1'p /'� 4 t t[G to (•9 RY•afwF RNN -K•G-AE rs01 - >vP a [l5 � 4 V _ - Mf�lMlwcO a / R ! t E- �[ Jr c' r or ° Imo,) DETAIL tE °'w3 fr[Y=ago. ,�,' •"e � �1 ♦[NP ♦wLFT ACCESS HATCH '- f rYG�u'607 n - mf % �� •' . v ' SCALE 3"•L-p 0 q S. S j � f C •GE I/90'I � � �� �I(.4 IG'EW TW �}..�� --A"iv'�7�;'acc' gr Rp YGCE iY LW.mP � � � •� Yr((M[ M�, I M�•E6 S[[DE.A/nL p / � Lao• /'Y✓M%I/�LIRAIN � [ �. / .�' ' •t0/r � M, flew • I:CY�NLFT ` n -Ya(,f• • •� \ T •% I. rPM9/far ✓Nf ax ar/Nr stf PGAN- SECTION J e t E. uAp SECTION a, scALE.3i1r•r•p • ICE N'LIYIOP 4 rANn /' /I" 1 P • •a-DRwM Lw a ! SCALE'•`•-p _-jam. - -; - n , ;' %• J � Ale S t W Y / • pY h'/fI ';' !I I I E I I' 1 a•`3 5.OFL.FROM p ' / NIa V° I.T M/ . jvr All A•dN�;.—�-i : C `O G Ys'(GO.Ya f i;y o PLOT PLAN =w c•• s".` is' e • : ti [OP of RH° ,OI SC• j`•t ._W#C2 wEt[R TO PLAN1 A'.E 1"•10 ' } ,_roA aw! a a•1 G� wATla fo PEAwT P THIS DRAWING REDUCED }y\�•,•7.�. '. at' • _•, - _ mf E5 :__ • _ - t(6 AN 9 ,_q 06 Afty FROH ,TV C !J 4 LM Titer J :graLiurJ a _ FOUNDATION PLAN TO HALF 512E G•., y set RA t ` s esNf• V SECT ION pl SCALE •1'-O MAtER STOP A.^.E TAN. •BG Ie'[x- PLOT PLAN AND y` ' 14 S SGLE•'3/j•1'-0 TTLE •.., � RENTON SECTION sslup SYSTEM FOUNDATION PLAN AND SECTIONS TROPOLITAN SE UNICIPALITY OF ME /A AS MO!fp •._K1AY NE Tatan L:T AY Eh •O.n a :n G.4. •aP . 0• e1_n• t r / lxaicwan PRSN•E I NL00 [I/45 r.. /p' WASTE !c DbL • 2. •2 \\SEL DE TAX y,M3 L'C/ C rCJO'4 I I 10C j� v-\f GYL ♦♦ LL/!T/N6 /yATEf MA/NJ � *��DETK i �.•C, EFFFLUENLUOI EF t T \� LL/JT/N6\\ !' • NfL✓ENT C f O7CE TAM -Cr �/N! TO OG A0A41OONLOS ♦ fLOM oJ)/[/OK7DCw I T`J,WrIJ LC]Ne 0 TtA:I tDS AE AR 1 \ I SLL OLTA/L C/M3 I NWEC T-EMEOLIN! 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YLc• ..D sxCOEl i r^ „APO METRO Municipality of Metropolitan Seattle Exd haW Bldg. • 821 Second Ave.,Seattle,Washington 98W4 May 6, 1983 You are cordially invited to attend a special construction kick-off for the Renton Improvement Program at the Renton Treatment Plant. This evert marks the beginning of improved service to the Eastside and Kent-Auburn Valley. The ceremony will be held on Tuesday, May 17 at 3 o.m. at the Renton Treatment Plant. Please plan to join us. Sincerely, Kirec Charles J. Henry, tor Water Pollution Control Department R.S.V.P. Metro, Public Information, 447-6582 F-IX3-e> ypr �r 0.�n:Qwd 0, V\%%J " 1VAO & �ro1.�t NHS U 'sCi fv" ��'� I N T E R O F F I C E M E M O T0: ��v DATE: /tt &Y 17 '°�6W"- l FROM: &,jr.4 T SUBJECT: /ram'^' P` or 1 4l MEI RO Municipality of Metropolitan Seattle Exchange Bldg. • R21 Second Ave.,Seattle,Washington 98104 Mav 9 , 1983 Mr. Roger Blaylock Zoning Administrator Building and Zoning Department City of Renton 200 Mill Avenue South Renton, WA 98055 Renton Treatment Plant Enlargement - Metro Special Permit SP-006-83 and Conditional Use Permit CU-007-83 Dear Mr. Blaylock: The purpose of this letter is to respond to the City' s letter of March 16, 1983. :•.atro has reviewed the City' s letter which out- lines conditions that the City departments may recommend to the Land Use Hearing Examiner concerning the subject permits. We would like to ensure that this response and past Metro correspon- dence is entered into the hearing examiner' s file for his review prior to the hearing. In addition, we request a m ^ with Mr. Houghton, Mr, Nelson, Mr. Geissler and the Mayor pr._ r to the formulation of final recommendations by the City departments to discuss several problems outlined below. Generally, Metro is concerned that the list of improvements recommended by the City are excessive, appear to lack legal authority and are disproportionate to the impacts caused by the plant enlargement. It is difficult to assess the legal grounds for many of the City' s proposed conditions since no response was provided to my request for clarification on this matter. Metro understands that the City may attach reasonable conditions to the granting of a conditional use permit, and Metro is willing to cooperate with the City in a mutually beneficial effort to upgrade the vicinity streets. However, those conditions must be reasonably related tc the plant enlargement' s impact on its surroundings and cannot be imposed arbitrarily. We estimate that the improvements suggested by the City could cost Metro up to $2.5 million. In reviewing the suggested street improvements, we have been unable to find a comprehensive plan for upgrading the traffic circulation problems in tt.3 vicinity of the plant. Where plans do exist, it seems that some of your suggested improvements are inconsistent. For example, your request for Metro to provide one-half of the valley Parkway right-of-way and improvements Mr. Roger Blaylock May 9 , 1983 Page 2 along the northern plant property ine is not only inconsistent with past traffic plans but suggests a horizontal alignment which is technically undesirable. (Reference City of Renton, Valley Parkway Alignment, sheet 3 of 3, prepared by URS Company and Brown and Caldwell; letter to the City of Renton dated April 27, 1983, Proposed Horizontal and Vertical Alignment of Future Valley Parkway, both attached. ) Additionally, we couldn' t find any evidence that your request for realigning Monster Road was based on an existing traffic plan. The following is Metro' s response to each item in your March 16, 1983, letter: Internal Plant Fire Protection. Metro' s water storage tank is 50,000 gallons, not 10,000 gallons. Metrc will work with the City to ensure that the fire protection system meets reasonable provisions of the city co;e. However, we do not believe that Metro should be require_ to provide a new 12" water main across its property for wter service to the general area. Although net mentioned specifically in your letter, this requirement has been suggested in more recent meetings. Estimated cost is $106,000, based on the latest discussion with the City. New P-1 Channel Bridge - S.W. 7th Street Extension. Metro is reconsidering the development of the P-1 channel plant access bridge and 7th Street extension based on recent conversations with the City staff. A record of that discussion is attached for your review. We would like the City to approve the concept of a bridge connection, which would be open for public access as requested, without making it a requirement. We were under the impression from past discussions with the Renton Fire Chief and from reviewing the City' s code that this improvement would be required. The Fire Chief desires a better access tc the proposed chlorine storage facility than that provided by the existing plant access. We had originally proposed Longacres Drive as an access option, but City staff were opposed because of certain design/traffic safety concerns with intersecting Longacres Drive. It appears that the City has .reconsidered its concerns in view of the request for Metro to realign Monster Road to intersect with Longacres Drive near the same point we had originally proposed. If implemented, the plant access bridge improvement is estimated to cost approximately $640,000, without the latecomers fees for signalization which we have no problems with. Also, we would agree to fully excavate the P-1 channel only through the immediate bridge area but the city would be responsible for maintenance of that area which might be subject to ponding. We are now considering an access option which might be acceptable in conjunction with the realignment of Monster Road. Mr. Roger Blaylock May 9 , 1983 Page 3 Monster Road Off-Site Improvements. We believe that the widening of Monster Road to 36 feet with curbs and gutters on both sides, storm drainage, street lights and sidewalks on one side is un- justified. We also question the legal authority for imposing improvements on more than one-half of the street. We believe that the public benefits of this extensive work, at an estimated cost of $375,000 , are at best dubious. Since the future Valley Parkway will be the major arterial in the area and Monster will be a secondary collector, Metro suggests that a better solution would be to reduce the requirement to at 24 foot-wide new asphalt road with some improvement to the sight distance problems. Further, we believe that a reduction in this requirement could include a condition that Metro work with the City on realigning Monster Road, which is discussed below. Finally, we believe the City should explore with some vigor the possibility that adjoin- ing landowners assist with the Monster Road improvement. Valley Parkway Off-Site Improvements. Because of the vague alignment of the Valley Parkway and because the Valley Parkway is a general improvement in the area, we believe that Metro should not be obligated to provide one-half of the right-of-way and improvements. As previously discussed, it appears that the City' s current street plan calls for the Valley Parkway to be aligned in a location that would not require the use of Metro property. An alignment along one-half of Metro' s northern property also appears to be technically undesirable. If Metro decides to abandon the P-1 channel bridge access, the Valley Parkway would have no direct benefit to Metro, nor would Metro' s presence impact the Parkway in a significant way. The Valley Parkway has been planned for sometime, and therefore, the plant enlargement should not be construed as impacting the need for this street improvement. This suggested condition is estimated to cost $210 ,000 , without land costs included. Monster Road Realignment. We believe that the City has no valid legal grounds for recommending such a condition. It is difficult to identify the City' s design goal for such a suggested street improvement since no specific street plan is available. We are particularly concerned about this condition because it could result in severance to property which we are presently negoti- ating a purchase. The property has an irregular shape with power line easements, making it difficult to develop without the complication of realigning Monster Road. However, we are willing to work with the City staff on developing a realignment project, provided that the Citl is willing to negotiate with the neighbor- ing property owner to the south for additional right-of-way ?nd that a traffic plan be developed to minimize impacts to Metro from Longacres traffic. We foresee this improvement as an Mr. Roger Blaylock May 9, 1983 Page 4 extension of the 24 foot-wide asphalt upgrade to Monster Rcad, We estimate the suggested improvement to cost up to $103,000 without land costs. Longacres Drive S.W. Offsite improvement. Metro is in the process of negotiating with Burlington Northern for the purchase of property which is described as "Metro frontage" in your letter. A purchase agreement could take at least six months to consummate, if at all. Even if we succeed in acquiring the property, we question the reasons for curbs, gutters and lighting along this segment of roadway. Estimated cost is $27 ,000. P-1 Channel tend Interim Flood Control. Metro has cooperated with the City for proviA ng flood control in the P-1 Channel it con- junction with our site preparation contra-:t rather than excava- ting a storage basin as originally plan. 3. The site preparation contract his been awarded and the cost �o Metro is based on the bids received: $216,000 for the P-1 channel versus $86,000 for the storage basin for a net cost to Metro of $130,000. In regard to firm commitments for accepting P-1 channel spoils, evidence from past correspondence indicates that Metro made a commitment to the City for accepting 99,000 cubic yards of spoils from the P-1 channel. About six months ago, the City informed Metro that our share had increased to 150,000 cubic yards and then., more recently, to 165,000 . due to the recent purchase of property. We do not understand how Metro' s "share" can increase by 65% when the recent land purchase amounts to about a 16% increase, It seems that the definition of "share" is boring construed loosely and that the methodology for distributing 165,000 cubic yards of P-1 channel spoils to Metro should be re- viewed for its equity. Metro will be disposing of approximately 50 ,000 cubic yards of spoils on its property as a result of the P-1 channel excavation work discussed above. Based on the past "commitment" , we are obligated only to accept 49 ,000 cubic yards more. We have stated to the City in recent correspondence that Metro would be willing to negotiate the acceptance of even more spoils from the P-1 channel, but that requiring the increased quantity is unaccep- table. We cannot be put in a position of giving the City an "open ended" otligation for disposing of P-1 channel spoils. We will need to specifically define fill elevation constraints on our property and to have agreed-upon time constraints from the City before we can commit to accepting additional fill. Addi- tional fill requirements cannot be imposed unilaterally; to do so raises a question whether Metro and the City even have an "agreement" at all, . Y'.w1•T^",... ......,.r... ..,'yry^!p'' 'S�T".r.T'.�,".y.-..-+ .�....w +oTq,r.w�154 , Mr. Roger Blaylock May 9 , 1983 Page 5 Haul Route Must be Defined. No earthwork hauling from the plant is foreseen for this enlargement. Hauling of spoils from the effluent transfer system will be defined when that project progresses to a more defined level of detail. Sanitary Sewer Service to the North End of Plant. Metro is not obligated to provide local sewerage collection, particularly from the internal plant system. The internal plant system was designed to allow surcharging, which would result in sewage flooding below certain elevations off-site. Therefore no connec- tion can be allowed. There is a 12-inch stubout in the junction structure of the southside and eastside interceptors that the service area to the north could utilize if in accordance with your approved local comprehensive plan. Supplemental Environmental Analysis. The additional environ- mental information you requested is attached. If you have any questions, please let me know. We await your advice of when we can meet with Mr. Houghton, Mr. Nelson, Mr. Geissler and the Mayor. Hopefully, such a meeting could produce t a series of modified recommendations which are more reasonable, less costly and consistent with applicable laws. Very truly yours, }} �G. Project Manager DGH: sb Enclosures cc: Mr. Richard Geissler. , City of Renton Mr. Robert L. Gunter, Preston, ThorgLi n, Ellis and Holman Mr. Richard Houghton, City of Renton Mr. Ted Mallory, Metro Mr. Ron Nelson, City of Renton Mr. Warren Uhte, Brown end Caldwell .anc,rann*�+?na�n.r.•..�nr�,a.,w.e..�a�,mxrxna,w,........-,..:.,..em=„-�.. BROWN AND CALDWELL U�- T V LWQE,.[ NMpM CONSULTING ENGINEERS L M�� f,N: U. •C Yi",M V.Ir.. April 27, 1983 Mr. Robert Bergstrom Department of PuLlic works City of Renton 200 Mill Avenue South 14-1200-10 Renton, Washington 98055 G112.06/1 Subject: Proposed Horizontal and Vertical Alignment of Future Valley Parkway Dear Mr Bergstrom: As we discussed on April 12, 1983, I am sending you a proposed horizontal and vertical alignment for the future Valley Parkway. You will notice that my proposed horizontal alignment differs from that shown on the final plat of the Washington Technical Center. The alignment on the plat shows a short horizontal curve where the future Valley Parkway crosses the proposed P-1 channel. I feel that this curve is undesirable for several reasons. First, the bridge over the proposed P-1 channel would be curved, introducing super- elevation into the bridge geometry. Second, the curve across the channel almost immediately follows a lonaer curve in the same direc- tion. The combination of two curves in :1e same direction joined by a short intervening tangent is a broken back curve and should be avoided. Third, my proposed alignment conforms more closely to that shown in the 3:sign report on the Valley Parkway submitted to the City by URS Company. The URS alignment, I believe, is the only official alignment of the Valley Parkway available. For these and other reasons I think you will agree that the alignment I am proposing is preferable from engineering and traffic safety considerations over that shown on the Washington Technical Center plat. The 1" - 200' photocopy is compiled from City of Seattle topographic maps and is on the City of Seattle datum and Lambert coordinate grid. Approximately 6 feet should be added to the contours shown to DROWN AND CALDWELL 100 WEST HARRISON ST SEATTLE.WASNINGTON96119 (206)2814000 ATLANTA: DALLAS-FT WORTN.'DENVER EUGENE: PASADENA SACRAMENTO SEATTLE TUCSON WALNUT CREEK WESTWOOD Mr. Robert Bergstrom April 27, 1983 Page two obtain elevation above mean sea level; approximately 106 feet should be added to obtain Renton treatment plant elevations. If you have any questions or comments please call me at 281-4000. Very truly yours , B�ROW�NANP ELL � Yrry Dave Hea/ley Project Engin r DH:cp Enclosure CC; Mr. Dave Hammond, Municipality of Metropolitan Seattle BROWN AND CALDWELL 100 WEST HARRISON ST SEATTLE,WASHINGTON 98119 (206)281-40DO ATLANTAt DALLASFT.WORTH:-DENVER EUGENE::PASADENA SACRAMENTO SEATTLE TUCSON WALNUTCREEK WESTWOOD 4 tit 114,41. •Is a. 1 �� f••M.fl�'l) I � II i.' � 1 � ,\ V•n.wA/ 1 L=C/ ��O=Y \ Sc.�. (•+GOO' OW ,k ti c LML- r trtsl�f "ll 0AWN PARCEL m a � i ' •vk,' I II �/3b / � b Ed 70 CITY FOR 1 �P+ WATER DETENTION ) IID£FINED AREA FOR E \\ )F THE LAND ENCOMPASSED BY +salt' ITr EASE NT S_HINGTON TE:::;:!ICAL CENTER FOR 4 40 STORM WATER RUNOFF AND FLOOfl UNTIL SAID DETENTION AND FLOpp I ? IS PROVIDED FOR THE SAID PLAT. NED AT THE TIME TRACTS A6 B ARE / I r N Y = 54 >7S OR BEFORE JULY 1,?985. REMAINING? �` a= seo " ' ja:+scar sa BY CITY OF RENT•.3N FOR FLOOD / °°+4-ri46'� / L =+so.�g• AS THEY SO � CHOOSE. L =+a60T' 1 J� I(Ii� 1 I (a at[ N99'04• nf1�O�W! /,,�� !n orT��`_+.�4� i I • 6 •.29phi n ',.WA ER LIME�.fOR 'v- .T109020502 • 4 - -WAZkR LINE 11 1• � - - :, l v e1i R —''-^—TV UTILITiEASEMENTS A t ,. no ' I lu-- ! I • � 0 �earl►�� f j jI ,� � i �_- �o1Ck71 prtrpc diEless �ueho Q(td '• h Kai' ' '° ;? \ I SHEET 4. OF a. �. Ana -. . from • vVISFfWciTaN 'TtcgN<<I�- C>jlOTRit. .-„ ft MEUI AO wirMunicipality of Metropolitan Seattle Exchange Bldg. a 821 Second Ave.,Seattle,Washington 99104 March 29 , 1983 Mr . Roger Blaylock Zoning Admini3trator City of Renton 200 Mill Avenue South Renton, Washington 98055 Senton Treatment Plant Enlargement/Metro Special Permit SP-006-83 and Conditional Use Permit CU-007-83 Dear Mr . Blaylock: Reference is made to your letter dated Earch 16, 1983 concerning the Environmental Review Committee 's preliminary suggestions on the subject permits. We would appreciate your providing specific references to applicable laws and regulations for each suggestion by April 6 , 1983 , if possible . I will need this information for management and legal review prior to providing a response to the City 's letter. Additionally, Metro is considering eliminating the proposed 7th Ltreet bridge over the P-1 Channel from our plans . Je originally believed that this access would be required by the Renton City Fire Chief and by the City ' s regulations for industrial use properties . However, at our meeting of February 24 , 1983, Renton staff indicated that the bridge was not necessarily required and that access to Longacres Drive would be possible in conjunction with realigning Monster Road as suggested b,: the City. Metro also desires an alternative access for sludge hauling trucks but we had previously been infc�,med by the City that access from Longacres Drive as exists today would not be a viable option . We may present an alternative to the bridge and would appreciate your coordinating this issue with all parties concerned with_' n the City of Renton. Please note item #3 from the attached minutes of a March 22, 1983 meeting between Metro 's design c_^ssltant and Renton City Staff. Mr . Roger Blaylock March 29 , 1983 Page Two If you have any questions or comments please contact me at 447-6842. Very truly yours , CA�,Lavid G . Hammond Project Manager DGH: jc Attachment cc : r . Bob Ber rom Cit of Renton Mr. Richard Geissler, i y of Renton Mr. Dick Houghton, City of Renton Mr. Ron Nelson , City of Renton Ms . Susan. Solberg, Metro Mr. Warren Uhte , Brown and Caldwell MEMORANDUM 14-1200-10 G113.02 March 22 , 1983 TO: FILE �� FROMc DAVB HEALEY'i�%�` SUBJECT: FIRE PROTECTION REQUIREMENTS AT RENTON PLANT Place: City of Renton Attendees : Dave Healey, Brown and Caldwell Bob Bergstrom, City of Renton Public Works Department Ron Olson, City of Renton Public Works Department Jim Matthews, City of Renton Fire Department Jim Gray, City of :Renton Fire Department. (Two discussions were held, cne with Bergstrom and Olson, the other with Matthews and Cray) . 1. Bergstrom and Olson made the following comments regarding fire protection. a. It is not known how much water for fire protection is available from the existing system. b. The plant has notified the City of difficulties in in filling the plant water tank. (Letter from Brill Burwell , March 8 , 1983 , to City of Renton. Water Shop.) c. Hydrant testi-i,5 :.,ould be done to see how much water is available. d. A comprehensive water plan to be issued soon will call for the installation of a 12-.inch main across the plant from a point near the P-1 channel and SW 7th Street to the existing 12-inch main in Monster Road. The main would be hung from the proposed SW 7th Street Bridqe . e , The attached Resolution No. 2164 gives the City the authority to demand the new main evFc though the compre- hensive plan is in the developing phase (see Section I .B. ) f . Metro will. have to pay $ .04 per square foot for "system development." It was understood that the total cost was based not on area of property develo,eo but on total area of property owned. Memo to File March 22 , 1983 Page two 2 . Healey explaine7 the Cl , C2 , and C3 water ! ;stems to Sergstrom and Olson. Bergstrom and Olson wanted to know such things as: a. Backflow prevention and cross-conneclicnn prevention fur C2 water ; i.e. , how much of an air gap between Cl and C2 systems. b. Capacity of C2 and C3HP systems for fire protection . c . C3HP system controls and operating pressures. d. Questioned use of C311P for fire protection with respect to corrosion of fire truck equipment , solids passing capacity of pumps on pumper truck. 3. Matthews made the following important observation: the chlorine building may not be given an occupancy permit until the SW )tn Street Bridge is completed . Final decision is the Fire Chief ' s. 4 . Gray worked out a preliminary estimate of required fire flow at the chlorine building. (See attached calculation. ) ri o hydrants requirel, each capable of 1250 gpm independently . DH:klw ;cc: Roger Wilcox Warren Uhte Dc'ag Schneider Ruth Hobbs George Mason Monica Moravec Randal Samstag De -e Clark Municipality of Metropolitan Seattle Exdu„geBldg. • an SecoMAve.,Seatde,Washingtan 9KG4 March 29, 1983 Mr. Roger Blaylock Zoning Administrator City of Renton 200 Mill Avenue South Renton, Washington 98055 Renton Treatment Plant Enlargement/Metro Special Permit SP-006-83 and Conditional Use Permit CU-007-83 Dear Mr. Blaylock: Reference is made to your letter dated March 16. 1983 concerning the Environmental Review Committee's preliminary suggestions on the subject permits. We would appreciate your providing specific references to applicable laws and regulations for each suggestion by April 6 , 1983, if possible. I will need this information for management and legal review prior to providing a response to the City's letter. —10 Additionally , Metro is considering eliminating the proposed 7th Street bridge over the P-1 Channel from our plans . We originally believed that this access would be required by the Renton City Fire Chief and by the City 's regulations for industrial use properties . However , at our meeting of February 24 , 1983, Renton staff indicated that the br 1ge was not necessarily required and that access to Longacres Drive would be possible in conjunction with realigning Monster Road as suggested by the City . Metro also desires an alternative access for sludge haul-ing trucks but we had previously been informed by the City that access from Longacres Drive as i; exists today would not be a viable iption. We may present an alternative to the bridge and would appreciate your coordinating this issue with all parties concerned with_n the City of Renton. Please note item #3 from the attached ninutes of a March 22, 1983 meeting between Metro's design c nsultant and Renton City Staff. Mr. Roger Blaylock March 29 , 1983 -age Two If you have any questions or comments please contact me at 447-6842. Very trulLyy yours, 1 U►1 avid G. Hammo Pro ect Manager DGH: jc. Attachment cc: M . Bob Bergstrom, City of Renton Mr . Richard Geissler, City of Renton It Mr . Dick Houghton, City of Renton Mr. Ron Nelson, City of Renton Ms . Susan Solberg, Metro Mr. Warren Uhte, Brown and Caldwell t MEMORAND 14-1200-10 March 22, 1983 6113.02 TO: FILE FROM_ DAVE HEALEY-ZQ4 SUBJECT: £IRE PROTECTION REQUIREMENTS AT RENTON PLANT Place: City of Renton Attendees : Dave Healey, Brown and Caldwell Bob Bergstrom, City of Renton Public Works Department Ron Olson, City of Renton Public Works Departm=nt Jim Matthews, City of Renton Fire Department Jim Gray, City of Renton Fire Department (Two discussions were held, one with Bergstrom and Olson, the other with Matthews and Gray) . 1. Bergstrom and Olson made the following comments regarding fire protection. a. It is not known how much water for fire protection is available from the existing system. b. The plant has notified the City of difficulties in in filling the plant water tank. (Letter from Bill Burwell, Marcy 8, 1983, to City of Renton Water Shop.) c. Hydrant testing should be done to see haw much water is available. ow-9o- d. A comprehensive water plan to be issued soon will call for the installation of a 12-inch main across the plait from a point rear the P-1 channel and SW 7th Street t > the existing 12-inch main in Monster Road. The main would be hung from the proposed SW 7th Street Bridge. e. The attached Resolution No. 2164 gives the City the authority to demand the new main even though the compre- hensive plan is in the developing phase (see Section I .B. ) f . Metrc will have to pay $.04 per square foot for °system development. " It was understood that the total cost was based not on area of property developed but on total area of property owned. - — Memo to File March 22, 1983 Page two 2. Healey explained the Cl, C2, and C3 water systems to rergatrom and Olson. Bergstrom and Olson wanted to know such things as: a. Backflow prevention and cross-connection prevention for C2 water; i.e. , how much of an air gap between Cl and C2 systems . b. Capacity of C2 and C3HP systems for fire protection_ c. C3HP system controls and operating pressures. d. Questioned use of C3HP for fire protection with respect to corrosion of fire truck equipment, solids passing capacity of pump: on pumper truck. —§P- 3. Matthews made the following important observation: chlorine building may nat be occu anc permit un�� Street Bri a is completed. Final decision�is Fi the re Chie s. 4. Gray worked out preliminary estimate of required fire flow at the chlorine building. (See attached calculation.) Two hydrants required, each capable of 1250 gpm independently. DH:klw ;cc: Roger Wilcox Warren Uhte t Doug Schneider Ruth Hobbs George Mason Monica Moravec Randal Samstag Dave Clark OF RFC z BUILDING & ZONING DEPARTMENT _ RONALD G. NELSON - DIRECTOR MUNICIPAL BUILDING 200 MILL AVE. SO. RENTON,WASH.98055 • 235-2540 9 0 CO SEPI BARBARA Y. SHINPOCH MAYOR March 18, 1983 -��'�•`•. Mr. David G. Hammond Project Manager Municipality of Metropolitan Seattle Exchange Building 821 Second Avenue Seattle, WA 98104 Re: Expansion of Existing Wastewater Treatment Plant/Metro Special Permit SP-006-83 and Conditional Use Permit CU-007-83 F Dear Mr. Hammond: The City of Renton offers the following preliminary suggestion of conditions that the various City departments will recommend to the Land Use Hearing Examiner concerning the conditional use and special permit applications. These conditions have been reviewed and accepted by the Environmental Review Committee without a statement of lead agency status or as items of environmental mitigation. The City's present position is that if the applicant is willing to modify their conditional use project to include these items, then the City will not undertake the dispute over lead agency status. Internal Plant Fire Protection: Metro has an internally-operated water system feed from a single 8" meter supply into its small 10,000 gallon reservoir. The fire flow capacity is unknown and fire Row testing is needed to adequately evaluate the fire system performance. It is the City's intent that if the system needs to be upgraded, then Metro shall provide that as part of their total improvement proposal .qW New P-1 Channel Bridge-S.W. 7th Street Extension. Metro's raw haul route for sludge trucks, via S.W. 7th Street, will make Metro liable for latecomers fees on two of the signalized intersections at (a) Powell Avenue S.W. and S.W. Grady Way and, (b) S.W. 7th and Hardy Avenue S.W.. The extension of S.W. 7th Street via the bridge will be a cost borne solel— for its access to the northeast corner of the subject site. The bridgitself s ulld be—open for public access, separate technical plan submittals must be provided, and ramped access down to the future P-1 Channel must be provided. The P-1 Channel should be fully excavated through the bridge area to its final design section. AM Kaw +ke- CVk1 Metro Jt Ie M q w .12' or t5 {,�.., 1t,a bredq AKd row4e uti c c-a%; At,,e 0 toe Io.xn¢ �,, Ph&}at9. pt u t P`�+� , tke cost , 4 ca.rst, + e wask T t r;�n1 i (See NApre 2 '4 `.,�.,.�ars � �i'li6 was Bart• C. Jrer PI See rervirAs };aure- . 1- RESPONSE TO CITY OF RENTON REQUEST FOR ADDITIONAL ENVIRONMENTAL. INFORMATION The discussion which follows addresses the specific environmental concerns raised by the City regarding: (1) the design and aesthetic considerations of the Renton treatment plant solids handling facility; (2) truck traffic from sludge hauling; and (3) the potential for hazards waste from industrial users. This information should be reviewed in addition to the Final EIS issued by the Environmental Protection Agency in 1981. There are no new cn-site facilities proposed which were not addressed in the 1981 EIS , however in some cases, more detailed environmental information will facilitate permit approval. Con- current with the design and construction of the Renton on-site improvements, Metro is preparing a supplemental EIS for three effluent discharge alternatives. This supplemental EIS will be written to meet the requirements of the State Environmental Policl Act. Draft and final impact statements will be prepared and a public meeting will be held, RESPONSE TO ITEM (1) SOLID STREAM FACILITIES New and future solids stream facilities will be located to the north of the existing plant. The location of these facilities at elevation 125.0 forms a distinct treatment process entity. The digesters and the dissolved air flotation thickeners (DAFTs) :re arranged in groups of four. Four digesters, a blending/storage digester, and four DAFTs will be provided in this enlargement (see Figure 30-21) . The dewatering building, the first half to be provided in this enlargement, is located to the east of the digesters. Construc- tion of the north half first allows for the addition of future dewatering capacity. This location is close to the sludge production point and easily accessible for disposal. One filtrate storage tank will be sited to the west of the DAFTs. Stored filtrate may be pumped to aeration tanks or DAFTs. An energy building was to be located near the intersection of the north-south tunnel and the east-west tunnel. This building was planned to house the heat extractors and main pumps for the plant' s heat reservoir system and the digester gas scrubbing equipment. This building has been eliminated and the facilities integrated into the digester complex, LANDSCAPE PROGRAM Enriching the aesthetic quality of the environment at the Renton treatment plant is viewed as the primary objective of the land- scape architectural development. The ideal aesthetically pleas- ing environment is accomplished not by striving to subjugate nature wholly, nor by restoring nature insofar as possible to its original state, nor by rejecting nature, but rather by harmoni- ously integrating man' s works with natures. One can achieve this integration by modulating structural forms with natural ones and by bringing nature - hills, ravines, sunlight, water, plants, and air - into areas of planning concentration. Landscape harmony should emerge as a blend in which the native quality of the region and the site still prevails after the construction of roads, buildings, and treatment structures. This "humanized" landscape is far more pleasing if the sentiment of the landscape character can be preserved. The site occupied by the Renton treatment plant is on a natural levee in the ;clack River Valley bottomland. Hillsides developed into residential overlook the site and the valley from the north, the we c, and the east. For these offsite viewers, the visual quality of this valley floor should be commensurate to their perception of the landscape character of river bottomland and uplands. That is, topographic relief should be undulating, lines and forms should be free flow- ing, and plants should be of type and groupings commonly associ- ated with a riparian landscape. The second objective of the landscape architectural development is to create harmony on the site; that is, to seek to blend the various elements of the plant. Determining, creating, and then keeping current, optimum relationships between people and their en-Ironment is a major planning goal. At the treatment plant, attaining this goal results in efficient plant operation as well as a high degree of personnel morale. To achieve this objective a close look at the various elements of the plant is in order. Refer to Figure 30-27 for the following discussion. A. Area A - Stormwater Retention Basin The proposed stormwater retention basin should be designed to appear as a natural feature. Existing environmental condi- tions lend themselves well to creating an aquatic ecosystem. This area would be left as is, if the basin is not built. B. Area B - Fill Slope Adjacent to the Proposed P-1 Channel and Stormwater Retention Basin Landscape devel _ xent along the fill slope can mitigate some of these negative impacts. Plantings can be used to break the 1 ,200-foot long, 12-foot high wall into irregular visual spaces. 2 Trees and tall shrubs can merge into smaller shrubs and ground covers, softening the slope vertically as well as horizontally. C. Area C - Future Secondar Sedimentation Tanks Aeration Tanks, and Primary Clar ers These areas should be left as natural as possible. If fill is provided, the area should be contoured and revegetated with natural native plant materials. D. Area D - Plant Entrance The :andscape development existing in Area D establishes a semi-formal campus-like environment. Manicured lawns and orna- mental trees and shrubs are arranged to create an aesthetically pleasing entrance and sense of place. This area should be main- tained as it is. E. Area A - Sedimentation Tanks Landscape development in this area is limited by the small, equal-sized open spaces formed by the alignment and position of each of the tanks. Turf or low ground covers are the only per- mitted plant materials so as to preclude the dropping of leaves, flowers, berries, and needles into the tanks. F. Area F - Chlorine Building It is desirable that the chlorine building be heavily screened and buffered from on- and off-site viewers. This was one of the basic safety considerations of the City of Renton fire chief. G. Area G - Water Tower Hill and Digesters it is proposed that the digester tank area be densely planted with large-scale, coarse-textured trees and that the tank area and the hillside be seeded in field grass. H. Area H - Dewatering Building Ingress and egress is an important function in this area, requiring special landscape treatment at the point of entry. The plant materials should be placed to articulate the circulation pattern; that is, clearly delineate the entra :e. This can be accomplished with low plantings. Fairly steep slopes will result from the proposed earthwork. Low maintenance ground covers, shrubs, and small trees will retard erosion and provide an aesthetically pleasing solution around the edges. Architectural renderings (Figures 18A and 21A) and landscaping site plans (Figures 30-25 and 30-27) have been attached to 3 provide an overview of the appearance of the solids handling facilities. RESPONSE TO ITEM (2) Fewer than ten trucks per day (24 hour period) are expected for tranarDrting sludge from the Renton treatment plant through year 2000. The trucks now used are 40 foot long tractor/trailer com- binations. These vehicles hold sludge in baffled compartments in the trailer. Each trailer is covered to prevent spilling. Trucks used to haul sludge from the Renton treatment plant will be of this design or tankers. A contingency plan will be prepared to direct containment and clean-up activities should an accident with any truck result in a spill. Only one spill has occurred during the past three years. This spill was contained rapidly and clean-up was successful. Metro sludge hauling is provided by a private contractor. Sludge trucks will use the shortest approved route from the Renton treatment plant to reach Interstate 5. The eventual haul- ing destination for Renton sludge has not yet been determined. The additional traffic generated by ten sludge hauling trips per day will not cause significant impacts to existing traffic volumes in the vicinity of the Renton treatment plant. No special traffic hazard prevention procedures are planned. RESPONSE TO ITEM (3) The Renton treatment plant does not treat hazardous industrial waste ,. Sewage sludge handled during the treatment process is not classified as a hazardous waste according to EPA toxicity tests performed by Metro in 1982. 4 PORN l i 'S1lP9 /f.DOC�E 1 .37'..�.� 6 Figure 30-21 Digesters Plans and Elevations S � fI y M fi f lit- � d_ i a.- 1 �� ��1. .y.��e+ � '"� 't'� a 1,;r .:y' �,ryTr .a;:.r '.rw's�: �,..:O,r�in'y.�i.:•...:a i.:w. 'T' ."'a`s. .Y K+r t l { e 1 ! a, y ♦ .� �� "' „y _ �� 3 5 � .. w�.. .Jri �f. R M • " 1 - �ASIM AREA A �. PPEP t40 FEE, 4 Vol' zwr1w was `• � ���� tp\ S( d 1SMMf(TAM ARE ulIF „�_ 1Sy^eo IL �1 pAt � / ram• ,�1` ' r r f OSS�St/At�J` � Figure )0-3S Ca OPWsl Lsnd�ux Areas tea ro roa nI�^/ r nd[ WE COY[Fwf{ �^• - /�f 1 v T-. FIET yop v9 I ro i moot( Nt Kr 1�-- �(e`�'_ ` -� )✓ l �— �\air F/ ��� `` ��'f/i� �`\�� �� , •�. 1 \ 01 fel.Yl F [r y,I�y4MA1M l.Nd"4 MItrY•i Y.O,IuCY/, M y KPG1a .,i_- 'j .1 /�'` Mf•S Ibtl .I twWi . �; '1Lp'[MgH'��' 11�11�1 ,1. 1 " � er•r.m \ e' _ ✓" r[•uorF-s[e corewfi - o: -Y(OtY „yl+.n�N!NKYt 11 \ \ C. 1 , .-'��� `11 jr. i.1fs-"�I `1•''` _. :�Lf^"T"'1',w+ ,.�f�M•' �( ,may '�� ✓_:_=. �11y►� {�- rr i' / \1 `` Ie ••1• • i�/ �s mwr MI Mrr'K�IVwtRR.y/.p M•twe/ /� � 11 I' •\1i _' � wy��IIIYnY MM Iv NI[1 f[MPfM lO f['f!e Pf0 \ 1 1 �� 1 :/fir� •� � •1 � IMn r p�y� � 1/.� •� 1 A Fw\PYFI aPtP vHelf!.e.KK _ ��\. ;�_ l ,I �' � •.• .�✓� f rsW f.RrYG iwlw.\NCF SfvI[ - �\� �. l ..w�•' ls fee sM \___ _ ✓_ . _ �- ^ fil e we .u^r y„tan sit,.\\a � a►' Figure 70-27 L•ndxape CfxfcePts O METRO Municipality of Metropolitan Seattle Exdunge Bldg. • 821 Second Ave.,Seattle,Washington 98104 Renton Treatment Plant • 1200 Monster Road Southwest Renton, Washington 98055 • Telephone (206) 226-3680 March 8 , 1983 City of Renton Water Shop 800 Edmonds Northcasc Renton WA 98055 Dear Sirs : :.ity water flow to our 55 foot high water reservoir is automatically regulated and monitored. For the past two weeks , low pressure in the incoming line has rendered these devices inoperative. Flow rates have decreased to the point our water supply is a concern. On February 28 , at our request , employees from the City of Renton water shop checked and verified water main pressure is low (45 psi) . The situation continues to degenerate. We request you give this condition priority and correct with expedience. Sincerely, H. William Burwell , Manager East Division HWB:hh r� r r�c �ea�c �ehka TO: ko� �_ ❑ PLEASE CALL �,; FOR YOUR INFORMATION FR /7� FOR ACTION DATE: $3 IME: ❑ FOR APPROVAL _ ❑ FOR SIGNATURE RE: ❑ YOUR RECOMMENDPTION ❑ PER OUR CONVERSATION PHONE A : ❑ PER YOUR REQUEST ❑ READ AND RETURN READ AND ROUTE INSWAM COMMENTS: G ATTACH MATERIAL E RETURN ❑ FORWARD TO OF R,,,'l PUBLIC WORKS DEPARTMENT DESIGN/UTILITY ENGINEi ' NG 0 235-263'i o $ MUNICIPAL BUILDING 200 MILL AVE.SO. RENTON,WASH.98055 90 0' OAS rfD SEP�E�O�P BARBARA Y. SHINPCCH MAYOR MEMORANDUM TO: Dick Houqhton, Ron Olsen, Gary Norris, Don Monaghan, R Ron Nelson FROM: Boh Bergstrom SUBJECT: Metro Sewer Plant Expansion I met with some members of the Metro st,;f on February 1st to discuss their proposed plant. expansion. Ray Drebin at,d Dave Hammond from Metro and Warren Uhte from Brown & Caldwell met and o°scussed these ;eries of proposed conditions that Metro may have to satisfy for their plant expansion. 1. Traffic Signals: Metro may be liable, with their proposed P-I Bridge on S.W. 7th St. , for latecon,;rs assessments against them for the signals at Powell and Grady, and S.W. 7th & Hardie. Also the future signal at the east end of their bridge, at S.W. 7th and Valley Parkway would be partially at tFiir cost. 2. Street Frontage Improvements: Metro wOLld be liable for street im- provements along etli it fr age of: a. Monster Road 36' wide street curb, gutter and sidewalk one side an3 reee lights. b. Valley Parkway - Half of full street improvements where Valley Parkway stems their northe-n plant frontage. This road improve- ment would be shared in equal with Washington Technical Center. c. Long Acres Drive - Half of full street improvements, along their frontage; curb, gutter, sidewalk, Street lighting, street widening to four lanes. One is bound off of Grady Way, two lanes out bound to Grady Way, and a new two way left turn or left turn pocket for realigned Monster Road. d. Realignment of Monster Road: Full improvement of realigned Monster Road. See attacle map) e. Fire flows may have to be improved. Renton requested fir flow tests in plant, for analysis and later determination of Renton will require improved water and fire system in plant. f. i asked if Met- ^ould provide sanitary sewer service to the Wash- ington Techniee r property west of the P-I Channel . Metro Memo To: Dick Houghton, Ron Olsen, Gary Norris, Don Monaghan & Ron Nelson From. Bob Bergstrom Subject: Metro Sewer Plant Expansion said they had yard sanitary sewers, but would not allow this sewer access. g. P-I Channel Status: I said we need a letter by Metro to accept ChO,000 cubic yards of spoils, if we are to get SCS to dig the Channel . Metro said they could accept this fill . They suggested that perhaps Metro could dig their entire share of the Channel , and dispose of the fill on site:. The other option, if the SCS project's rebirth is stopped. Metro would be willing to dig up in the P-I Channel their required compensating flood storage, about 40,000 cubic yards, wtile they expand their plant dykes. h. Metro also asked about their permit options. They know that they must submit a master plan, but want to do some initial grading work first, and asked if we could give them assurances for smooth permit processing if they piecemeal submitted for permits. I said I didn't know but would check with Ron Nelson. Aar Attachn,pnt NOTEq.�� 3 �44 ; Cw Sw 7�" S% E= 1p a� /Yt. V's St,,{,,,,. .. t/ �cl�v,✓..It 1 y rto „ / BROWN CALDWE .DEVELOPMENOT APPLICATION REVIEW SHEET ECF - - ENVIRONMENTAL IMPACT STATEMENT PREPARED APPLICATION NOW : SPECIAL PERMIT (SP-006-83) CONDITIONAL USE PERMIT (,-U-007-83) PROPONENT: Municipality of Metropolitian Seattle (METRO) PROJECT TITLE: METRO Wastewater Treatment plant Expansion. BRIEF DESCRIPTION OF PROJECT: Application for Special Permit to allow fill and grading on 22 acres of Property. and application for Conditional Use to allow expansion of treatment plant in a G-1 cone. LOLATION: Property located at 1200 Monster Road S.W. TO: a PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: 3-2.83 ENGINEERING DIVISION Q TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE: UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU PARKS & RECREATION DEPARTMENT BUILDING & ZONING DEPARTMENT POLICE DEPARTMENT POLICY DEVELOPMENT DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING, PLEASE PROVIDE COMMENTS TO THE BUILDING & ZONING DEPARTMENT BY 5:00 P.M. ON MARCH 1, 1983 , REVIEWING DEPARTMENT/DIY?SIGN: U7'.Uiy APPROVED ® APPROVED WITH CONDITIONS NOT APPROVED aT111II IPPAIRAI So11ECT II Ulf_CltlElf 661111191 • WATER ►p i IETf PICEIS 411EEMENT SEVENIlk Mo 1I(11 SIB111011 CNANRE NAUR 0+ " I-IttlPNEa1 CHANGE SEVEN i 04- . ASSfSStl[A1 AREA CHANCE WATER No k ASSEISiAENT AREA CNARIt SENEN No APPIINEI PATER P10 _ A►f kISIa Is t, 0 APPNIVIN FIRE 9162ANT 0SATOSS • NY flat KEPT. TIRE flow A TSa 1N>S Id. DATE: 3 1 $3 SIGNATURE PF DIRECTOR OR AUTHORIZED REPRESENTATIVE -- _ 11lYINt1N tl�1�� fiffV18110" tl/INNR RENT`i BUI u G & ZONING DEPITMENT DEVELONMENTPLICATION REVIEW SHEET SHORELINE MANAGEMENT SUBSTANTIAL DEVELOPMENT PEtXIT APPL1.`TION NO(S) : 5 Al PROPONENT . _ Mmi�iity of 1.Y+,t=c0tih.n lw PROJECT TITL! ' . spa= lraatmmt plant BRIEF DESCR'r-i 0c OF PROJECT: Ugjg of d dikes and adjacent to the r=PDOed P-1 Chwv el and Springhcnok Creek. LOCATION: 1200 "'rite Rd. S.W. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG, DIVISION SCHEDULED HEARING DATE: UTILITIES ENG, DIVISION FIRE PREVENTION BUREAU PARKS & RECREATION DEPARTMENT BUILDING & ZONING DEPARTMENT POLICE DEPARTMENT POLICY DEVELOPMENT DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING, PLEASE PROVIDE COMMENTS TO THE BUILDING $ ZONING DEPARTMENT BY S:00 P.M. ON JULY 20, 1983 CIRCULATED% JULY 8, 1983 REVIEWING DEPARTMENT/DIVISION: ur/c1Ty APPROVED APPROVED WITH CONDITIONS NOT APPROVED ITlll)r IRUrAI SIUIcl 11 Ulf CINEIS 1191UNIIT NA1Ei rp UTI CINEIS INEENIII SENEI NO STSTEN IEIItIPNE11 C1110E NATII yes STSTEN KIFUIPNEII CIARCE SENE1 No SPICNt AS:ESSNf11 it C1A111 . WITH NO SPICIA ISSISSFir1T IIEI cIAICE SENEI ►JO APPROVED Illill NAI YES IPPIIIEO 11E11H PUN Er wvs Ib / 1 „nc•,2 ArP11rE1 FIRE 11161"1 lICAtoss IT 111E IEPI. FILE Flow ANITSIS y� DATE : 7 ►6 83 G� NATURE qF DIRECTOR OR AUTHORIZED REPRESENTATIVE rltvt�AON swat �q • oSL �� �c� �t � �fp f LLcs 1000 roo 1 co P f ' 09 r cna 0 J OO�rSS �►x�nr�Jaa �+1 -v�lr�'1 00 OQ9 000 09 19 bl v�s�r+ -to - ptiOf�+i 0,7 Metro Treatment D lant 1982-1983 Correspond. 749 2 -4 _� •% z 1' S ZC, LL`S 00 QC+ 'nOS r t oz i s 000 r 01 CO a°o Z � 000`oo 1 009 rp/ 00 ' r 0c) , 19C `0)+l v4.Av^" -to • X 017S RENT BUI I G & ZONING DEPAWMENT DEVELOPMENT PLICATION REVIEW SHEET SHORELINE MANAGEMENT SUBSTANTIAL DEVELOPMENT PERMIT ECF APPLICATION NOW : .5 - / 07 - A3 PROPONENT: Mmi -imltra of metmrnli= Seattle PROJECT TITLE: tm t Diwnt BRIEF DESCRIPTION OF PROJECT; Expansion of Renton 1=1=t Plant beyond dikes and adjacent to tha proposed P-1 rtanrel and Springbrook Creek. LOCATION: 1200 Monster Rd. S.W. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: ENGINEERING DIVISION TRAFFIC ENG. DIVISION SCHEDULED HEARING DATE ; ' UTILITIES ENG. DIVISION FIRE PREVENTION BUREAU PARKS & RECREATION DEPARTMENT BUILDING & ZONING DEPARTMENT POLICE DEPARTMENT POLICY DEVELOPMENT DEPARTMENT OTHERS: COMMENTS OR SUGGESTIONS RESARDING THIS APPLICATION SHOULD BE PROVIDED IN WRITING. PLEASE PROVIDE COMMENTS TO THE BUILDING & ZONING DEPARTMENT BY 5:00 P.M. ON JULY 20, 1983 CIRCULATED: JULY 8, 1983 REVIEWING DEPARTMENT/DIVISION: UIiUTy APPROVED APPROVED WITH CONDITIONS NOT APPROVED ITIIITI A►PAIVAI SYIIECT 11 LATE CIMEIS ACREENENT WAIII No _ UTE CINERS ACNEEMENI SEMEN NO SYSTEM IE1E11P1EN1 911119i WATER /65 3YS1E1 IEVIIIIMENT CHA161 - SEWEI NO SPECMI ASSESSMENT AREA CHANCE WATER NO SPECIAL ASSESSMENT AREA CHASE UWEN NO APPROVED WATER KAI YES 010111111) $EWER MAN Y Fs ua+s [r Rbr.>uvkf7 APPROVED FINE NTDNANT 19CATONS yes 11 FINE DEPT. FINE F:4111 IFUTSIS YES of4 E DATE: 7 IS/B3 S GNATURE qF DIRECTOR OR AUTHORIZED REPRESENTATIVE NMvl141CMN siHW! RENTON BUIL d ZONING DEPARTMENT- DEVELOPMENT APPLICATION REVIEW SHEET ECF _ — ENVIRONMENTAL IMPACT STATEMENT PREPARED APPLICATION NOW SPECIAL PERMIT (SP-00643) , CONDITIONAL USE PERMIT (CU-007-83) PROPONENT: Municipality of Metropolitian Seattle (METRO) PROJECT TITLE: METRO Wastewater Treatment Plant Expar+ion. BRIEF DESCRIPTION OF PROJECT: Application for Speci,l Permit to allow fill and grading on 22 acres of property, and application for Conditional Use to allow expansion of treatment plant in a G-1 zone. LOCATION: Property located at 1200 Monster Road S.W. TO: PUBLIC WORKS DEPARTMENT SCHEDULED ERC DATE: 3-2-a3 ENGINEERING DIVISION TRAFFIC ENG, DIVISION SCHEDULED HEARING DATE: UTILITIES ENG, DIVISION FIRE PREVENTION BUREAU PARKS & RECREATION DEPARTMENT BUILDING & ZONING DEPARTMENT POLICE DEPARTMENT POLICY DEVELOPMENT DEPARTMENT OTHERS: _ COMMENTS OR SUGGESTIONS REGARDING THIS APPLICATION SHOULD, BE PROVIDED IN WRITING, PLEASE PROVIDE COMMENTS TO THE BUILDING & ZONING DEPARTMENT BY 5:00 P.M. ON MARCH 1, 1983 REVIEWING DEPARTMENT/DIVISION: UT'u N _ APPROVED rM APPROVED WITH CONDITIONS a NOT APPROVED I�rinin�Priaii wl¢tr il•� IAIE Caro ANfENENr • wAltk Ma lift CINEAS 161ftrENT SEVER µ, STSnN 1ISIIIP11EII t%AAIt NA1ER 0+ V11E11 IEPEl1►011 tNA11E H1111 04-- SPECHI AAESS11FNI AREA CHARS[ NATI1 No S tC1Ai._ItSSESSABIT Ak1A CHARS: SEMI PIO APP120 VAIER PER%� W1. IttR1111 '!ME1 PIAI APPAi1E1 HRE 116:ANr MOATIhS ya ' Py FIRE DEPT. FICl Fill AN lm 1KS Q P, J DATE: SIGNATURE PF DIRECTOR OR AUTHORIZED REPRESENTATIVE IArv:sioa �i�ai__-• .. _ .. - �JYFJWfu i. •`v uw�. ., ,:.-.�us+WYc.1.� -Vr ��� RrvisIOM 0filla t MEMORAND 014-120G-100 813.01/3 October 1, 1982 B13.02/3 TO: FILES FROM: DAVID HEALEY, SEATTLEE SUBJECT: MINUTES OF MEETING--AUGUST 30, 1982--RENTON WASTEWATER TREATMENT PLANT CONFERENCE ROOM Attendees Warren Uhte Brown and Caldwell George Mason Brown and Caldwell Dave Healey Brown and Caldwell L111 Burwell Municipality of Metropolitan Seattle (Metro) Forrest Butler Metro Dick Finger Metro bave Hammond'# Metro PJ. ;hard Geissler City of Renton Fire Department Jim Matthews City of Renton Fire Department Purpose: Discuss proposed rail delivery of chlorine to Renton treat- ment plant and proposed chlorination building (refer to Subtask B13.01 report) . -9P A. Fire Department Access 1. Access to treatment plant will be provided at Southwest loth Street or Southwest 7th Street as well as existing entrance from Monster Road. 2. Fire Department also requests access from south side of plant to chlorination building. B. Security 1. The plant is continuously manned with three operators on duty through the night shift. The operators perform security checks and are trained to respond to chlorine emergencies. MEMO _ -� 014-1200-100 C23.01/3 August 23, 1982 j TO: FILES 1� FROM: DAVID HEALEY, SEATTLE_V p SUBJECT: MINUTES OF MEETING--AUGUST 5, 1982--CITY OF RENTON Attendees Warren Uhte Brown and Caldwell Dave Healey Brown and Caldwell Ray Drebin Municipality of. Metropolitan Seattle (Metro) Dave Hammond, Metro Ron Nelson Building and Zoning Department, City of Renton Gary Norris Public Works Department, Renton Tom Binghaman Renton Police Department Cliff Bates Street Department, Renton Purpose: Discuss site access alternatives for sludge hauling trucks and drainage requirements for relocating existing dikes. �-� 1. Warren Uhte briefly described the proposed solids processing facilities at the Renton plant and what this will mean in 1 terms of large semi-trailer truck traffic leaving and entering the plant each day. Three alternatives access routc.s were presented: Alternative A--Connection to Southwest loth Street Alternative B--Connection to Grady Way W" neje.4.�k dq�Re Alternative C--Connection to Longacres Drive ce..Y:derat:s+a. 2. It was agreee. that Alternative A_ was the best alternative since there wi be a sigT nalized intersection at Powe-iland Grady Way. It was brought out that the Grady Way Bridge has a weight limit of 15 tons, which will prohibit sltidge trucks carrying 26 tons of wet sludge from using this bridge. This bridge is scheduled to be renovated within 2 or 3 years according to city personnel. 3. Ron Nelson said that it is very likely there will be a drainage channel as planned. Therefore, a bridge will be required for Alternative A. Files August 23, 1982 Page two 4. The Powell and Grady intersection is being financed in part by property developers. Nelson believes that if Metro uses this intersection, the developers may want some Metro partici- pation. S. Desirability of a connection to Monster Road around the north end of the plant is still in the planning stages. Developers to the north are required to make a tie to Empire Way. 6. Puget Power may develop some property along Grady Way; Metro might approach Puget Power about participation in the roadway. 7. Warren Uhte described proposed changes to the existing dikes. Relocation would remove approximately 9.9 acres from potential use for floodwater storage. There would be sufficient Metro property outside the dikes to cempensati for lost storage by excavating approximately 7.4 acres to a depth of 3 feet. It was further expalined that at ultimate development all surface runoff from the plant will be diverted to the Green River. 8. City personnel saw no problem at this stage, but Rsggested that Brown and Caldwell provide full documentation when presenting this proposal to the City Council. r 9. Nelson said that if the cannel is constructed the 2 foot3 storage volume per 1 foot developed area requirement may not have to be provided. This will be decided by the Director { of Public Works or other officials, 10. Drebin replied that the timing of channel and plant construc- tion may be such that Metro would have to provide the addition- al storage. 11. The city will supply information on bridge standards and development requirements. DH:cp cc: P. Anwar Seattle W. Uhte Seattle 1 I i Q 014-1200-100 C23.04/3 August 26, 1982 C32.01/3 TO: FILES L FROM: DAVID HEALEY ��(S SUBJECT: MEETING WITH DON MONAGHAN, CITY OF RENTON ENGINEERING DEPARTMENT--AUGUST 24, 1982-- PROPOSED PLANT ACCESS TO SOUTHWEST LOTH STREET AND POWELL (ALTERNATIVE A) 1. Healey met with Monaghan to discuss roadway standards for Alternative A, i.e. , roadway crc-s-section, existing grade at loth and Powell intersection, width of proposed bridge, etc. 2. Monaghan said that existing roadway at Southwest loth and Powell as a width of 40 feet face-to-face. Said that city might approve a two phase approach--minimum section now, eventually widened to full width later. 3. Monaghan seid that Southwest loth west of Powell has not been dedicated as a city street; the only present easements are for utilities and access. Southwest loth will not be extended by the developer if the Valley Parkway is constructed, Monaghan said. 4. When asked about the Valley Parkway alignment Monaghan referred to a report done by URS showing a proposed alignment approximately 140 east of the centerline of the proposed P-1 channel. Proposed centerline elevation at the intersection of Valley Parkway and Southwest loth is approximately Elevation 116 (plant datum) . (See attached sheets. ) 5. At this point another engineer with the City of Renton joined the discussion. His opinion of Alternative A was that if it were constructed the intersection with Valley Parkway would be unsignalized and probably channelized to permit right tui.s only on and off Valley Parkway. He believed that Alternative A might not be approved by the City of Renton. ..f 6. Considerable time was spent on the pros and cons of this proposed access. Monaghan and the other City of Renton enainee� w�ere skeptical abo�rnative A. uggested look- 1ng carefully at geometries and at other access routes. Flies August 26, 1982 Page two 7. Development schedule of Valley Parkway is uncertain. Property bordering the Valley Parkway is Tract "B" of Washington Tech- nical Park (plat under final review) ; development may be by 1985 at which time Valley Parkway right-of-way would be dedicated. Action required: —� 1. General impression given that Alternative A would be discouraged by City of Renton Engineering Department. -� 2. The proposed connection to Southwest loth should still be considered, but other means of access investigated. Possible option is Southwest to Valley Parkway which will near the curve to the southwest, connecting Y northeast corner of the plant. 3. Prepare documentation for both access roadsit to Monster Street and loth) with "no project option" Road) . 4. Look into acquiring triangular Burlington Northern property to south of plant. CH:cp Attachments cc: P. Anwar Seattle D. Clark Seattle W. Uhte Seattle J. Warburton Seattle - 0 ENDING F FIL FILE TITLE V 61Ammoommoft 7 /� 9 too 1' ry manf Pl � h � � 9d2 - 1983 � orreSPondenc�