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Home My WebLink AboutCOLONIAL PARK Blk 3 Lts 1-5 S2 waiversColonial Park Block 3 Lotsl-5 S 1/2. low S 'lZ 10/2/01 Municipality of Anchorage George P. Wuerch, PIayor Building Safe4, Division P.O. Box 196650 • 4700 S. Braga« Street Anchorage, Alaska 99519-6650 • (907) 343-8301 littl)://-,N,xN,N-,,.ci.aiicliorage.ak.us Frank D. Rast, PE R & M Consultants Inc. 9101 Vangard Drive Anchorage, Alaska 99507 Department of Public Works Subject: Waiver Request for Colonial Park Sub. Block 3 S'/2 of Lots 1, 2, 3, 4, 5 Dear Mr. Rast: Your request for a waiver of the required separation between public sewer manhole and trunk line to private water wells on the subject lots has been approved. The approved separation distances are as follows: Waiver Number Lot Number Parcel I.D. Number Manhole Sewer Line WR010061 S'/2 Lot 1 050-301-11 52 Feet 55 Feet W RO 10060 S '/2 Lot 2 050-301-12 45 Feet 45 Feet W RO 10059 S '/2 Lot 3 050-301-13 --- 45 Feet WRO10058 S'/2 Lot 4 050-301-14 --- 43 Feet WRO 10057 S '/2 Lot 5 050-301-15 60 Feet 52 Feet This waiver approval also includes the required 25 feet between the private sewer service line and water well separation for S'/2 Lot 3 to the approved separation of 15 feet. This waiver approval applies to the existing public sewer trunk line and manhole to the water wells listed above only. Any future upgrade to either the sewer line/manhole or the water wells will require all separation distances be met or another approval from this department. If there are any further concerns or questions regarding this waiver, please call our office at 343-7904. Sincerely, Daniel J. oth Civil Engineer On -Site Water & Wastewater Program R&M CONSULTANTS, INC. ■ 9101 VANGUARD ■ ANCHORAGE, AK 99507 ■ (907) 522-1707 ■ FAX (907) 522-3403 ■ e-mail@rmconsult.com ENGINEERING ■ PLANNING ■ SURVEYING & MAPPING ■ EARTH SCIENCES ■ MATERIALS TESTING ■ ENVIRONMENTAL SERVICES August 15, 2001 Municipality of Anchorage Building Safety/Plan Review 4700 South Bragaw Anchorage, Alaska 99503 ATTN: Mr. Dan Roth R&M No. 150001 RE: Colonial Park LID 50-18, Eagle River Colonial Park Subdivision Water Well Separation Distance Waiver Request Dear Mr. Roth: As requested, R&M Consultants, Inc. obtained water samples from the following five properties: ' Block 3, Lot 5 S1/2, Colonial Park Subdivision ' Block 3, Lot 4 S1/2, Colonial Park Subdivision Block 3, Lot 3 S1/2, Colonial Park Subdivision ' Block 3, Lot 2 S1/2, Colonial Park Subdivision ' Block 3, Lot 1 S1/2, Colonial Park Subdivision Attached are the sample coliform bacteria testing results - all samples were satisfactory. We also verified that the well on Block 3, Lot 9 S '/a Colonial Park Subdivision is more than 100 feet from the sanitary sewer as indicated in your well log. We are therefore dropping our waiver request for Lot 9. Attached is a sketch with the location of the well on Lot 9. Apparently a box- like lawn ornament near the southeast corner of the lot was mistaken as a well when the design topographic surveys were completed. Ms. Lynda Barber-Wiltse, P.E., of AWWU is arranging for the video recording of the sanitary sewer line your office has requested. Very truly yours, R&M ONSULTANTS, INC. Fr D. Rast, P.E. Pr Jett Manager FDR: rh xc: Ms. Lynda Barber-Wiltse, P.E., AWWU 08-13. Doc A, N CHORALE 1AJATE lig & YVAS T E"vAVAT R UTILITY George P. Wuerch, Mayor Municipality of Anchorage Building Safety/Plan Review 4700 South Bragaw Anchorage, Alaska 99503 ATTN: Mr. Dan Roth -engineering Division 3000 Arctic Boulevard Anchorage, Alaska 99503-3898 fax 907.562.0824 http://www. awwu. ci. anchorage. ak. us August 23, 2001 Owned by the Municipalihj of Anchorage SUBJECT: Colonial Park LID 50-18, Eagle River Colonial Park Subdivision Water Well Separation Distance Waiver Request Dear Mr. Roth: The Anchorage Water and Wastewater Utility (AWWU) conducted a closed circuit TV (CCTV) inspection on August 16, 2001, of the subject LID sewer line. No problems were found during this inspection. Please see attached Sewer Utility TV Inspection Report for more details. One minor offset was noted (see page 3 of the attached report) at 277.2 feet west from the manhole in front of 19712 First Street. This appears to be near the transition between the existing sewer line and the LID sewer line (where a cleanout was removed and the pipe extended easterly to a new manhole). The CCTV video is available should you desire to review it. On August 15, 2001, R&M Consultants, Inc., submitted water samples from the following five properties to your office: ® Block 3, Lot 5 S1/2, Colonial Park Subdivision • Block 3, Lot 4 S1/2, Colonial Park Subdivision Block 3, Lot 3 S1/2, Colonial Park Subdivision ® Block 3, Lot 2 S1/2, Colonial Park Subdivision ® Block 3, Lot 1 S1/2, Colonial Park Subdivision Please issue waivers for the subject parcels or contact me at 564-2751 if any additional information is required to process this request. Res ectfully, 1 ynda L. Barber-Wiltse, P.E. / Special Projects Manager barberwiltsell(a),ci.anchorage.ak.us cc: Frank Rast, P.E., R&M Consultants, Inc. enclosures: 3 page Sewer Utility TV Inspection Report and 300 scale map Voted Best Tasting Water in America - 1998 U.S. Conference of Mayors \Wwwufile\Groups\Engineering\CapitalProjects\0000000102_ColonialParkLID\wellwaiver cctv_letter.doc R&M CONSULTANTS, INC. ■ 9101 VANGUARD ■ ANCHORAGE, AK 99507 ■ (907] 522-1707 ■ FAX (907) 522-3403 ■ e-maiMarmconsult.com ENGINEERING In PLANNING ■ SURVEYING & MAPPING ■ EARTH SCIENCES ■ MATERIALS TESTING ■ ENVIRONMENTAL SERVICES September 19, 2001 Municipality of Anchorage Building Safety/Plan Review 4700 South Bragaw Anchorage, Alaska 99503 ATTN: Mr. Dan Roth R&M No. 150001 RE: Colonial Park LID 50-18, Eagle River Colonial Park Subdivision Water Well Separation Distance Waiver Request Dear Mr. Roth: As requested, R&M Consultants, Inc. obtained water samples from the following five properties and performed nitrate analyses: • Block 3, Lot 5 S1/2, Colonial Park Subdivision • Block 3, Lot 4 S1/2, Colonial Park Subdivision • Block 3, Lot 3 S1/2, Colonial Park Subdivision • Block 3, Lot 2 S1/2, Colonial Park Subdivision • Block 3, Lot 1 S1/2, Colonial Park Subdivision Attached is the sample nitrate testing results, all results meet water quality standards. We also tested a separate sample for coliform bacteria from Block 3, Lot 4 S1/2, Colonial Park Subdivision that was inadvertently omitted from our August 15, 2001 submittal. Attached is the coliform sample results, the results were satisfactory. Please contact me at your convenience if any additional information is required to process well separation waivers for these five properties. Very truly yours, R&M C NSULTANTS, INC. 7 iw nim Fr D. Rast, P.E. Pr ect Manager FDR: rh xc: Ms. Lynda Barber-Wiltse, P.E., AWWU 09-18.Doc. W W W W WW 222 N 1H IA O O O uf0O - N �- N v Baa N N N N N N w/}l✓Ert REgUE5T$ FOR 407-Y /, Z, If/ S &oel-e 3 COLON/4L PAPA WRIVER REO u E srs #UM®f9S WRO/OOS7 - 5-8 -0 s 61 WAIv6R RFQuE,�'S POR WELL S 7 sEla-��? 1-'4'F_ IN / T STi4EE OFM�A/Ngi- 1,07- 00-P A3 F 2-� S orwEle ht q 'A", $-r. L or' 2 ¢ �" ' 4 s ' for 3- EL L- VI -r/4 — ALL LOTS H,9VE lvE[.L LUGS FUR rHIF- lvl�-TFg IAF -LLS. 4LL # /+RF OVEiq 3¢.- FEF-rVFrP. Col-oA,1.4L P/3R1t, Su O. /s c, C�-rED dFF E#(�LF IelvEle A Pd9-P E)9/,LE RwER LOOP t- F L L s E x s r THE K PR,4 6v Fie o 4+ o vE OF rc� o- D, r7 -1w c r R QV"I,ree f %KF_ Fig f r *iv", FES ENCO&I.41 MRFO RT 4PPAPox/m1q-7-oL7- 8F Lor,, G �2o�av0 sul2F�+-eE /s xrlPE�cELr- r//lsF,l /a� ev/r12i9-T-E"s1�:s rar- PEEIoFR RQ"IFeR Ar .700-- ,380 FrE T /s coovF/A Py /v uatFPou s L 19YERf of H/�r4PP�Ai, «�� nEaysE .s /L. r. Av1 7-1?*T k? r-_ TYP,CALr_y 1(upF7'trCTiw6LF /N rK/f 4jVwlpele. F TSF 5-u07,oCT WELLS PRAwi FROtA I uF &FPER Rf?U/FER RLL OF TKF Wo,07-6k ;F*AiPA 1z ES&tLT5 WE►?E A!F6-i47-/,1E. ALL N/rfflfi-rE 51IMPZEI egNr-- 9ACk UAiPE lvMY F TWE Ex CEAridev of 407- S w NfcH HAD N1 i 1?19r S OF ,717 p.y/f &-ko REL471VEL✓ CcofE ro paOF_ T'-S-crt'I.,?L�E! �SEtvFr� LINE P/4rrq - 1. S T ci? fcK TKF SFwEq 9,+'A,, lP cl u esrlo,v W#S COALSrRUCr�& LT' W ff 5 6oasrrek.crE0 Too ac,sF /o ra P GvELcf /iv CrK E'Srio�! T 9 E SEwER LIuE Is co orf r?aCT�/7 w ii, -c l3o7-Ljr - r,&14r DkcriLLr L RG/v PIpF >�N� AiR PREfrujeF rF-3 rao ro Koh S 7-4A .Dmea. SP6clFcprl, vo L oSS xPRESuw S2F (NoxF/trQ�iiv�), f� REC6aiT I/lPED Co9ftEre/4- fvl4S Ram'rkeou6►11 reit feweg L/PF- FOR Pkat Pof6y oi- 1,,,-4fvsK RF,qursT 4tvp ruE fefaier STgrrr 7w rHdr= pE AIM wo 41VOMILIES t.-,Inl 7-kC F-XCF,,p7-toA1 OF �kE4E rkC S6wE79 rk*&.%lFl0A0s FR 0K Tkiz OLP SFre 4.14,X To TUE PXW -1/415 Ir HO,FvEg over 3 -00 -FEE Mv /-Y FR- 011-1 T14 E: CL 0x65 r" w eL- /iv Q u ES7lov. j Hus TN/S /s of �`o C.G nr 51 Q L& FAP C E, O 0 m Q w In N In o 0 °0 00 7 U o30 oDo m tn�v !3DO U C, La .oww a5 z NOTES 1. ENGINEER WILL VERIFY LOCATIONS OF SERVICES WITH HOMEOWNERS. ADJUST AS DIRECTED. 2. VERIFY LOCATION OF EXISTING STUB TWO DAYS PRIOR TO INSTALLATION. 3. SEE SHEET G2 FOR LOCATION MAP, i. SHEET INDEX, AND LEGEND. u RECORD DRAWING i '; - w W x n.., ., a y� o (L i{ I 1. DATA PROVIDED BY: Tom Foster 3 I C lO ' "' • • • }' • • • • • �" This dll acne to cerlily mot thea. Record D,arings o f wI I x g ••� � 8 0 ~ 7 6 0 ~ �• c i o ora o true one aaarot. rep,ase Wi- or th. p,aject n I ZJ o w o 4 I 1 2 1? as constructed. + J +Ld coNrRacroR:toat.ind. A Diaaian ar Noraan inc. d Q I STA. 1+33t 1' 'x __ 4 _ Br. nnE: $ o ntene.nt o �I ll7 CONNE T TO EXISTIN PIPE ¢ z �( Q zL-1 li—� o, — DATE: 10/30/99 ❑O C❑. I U I— Q i Q Al, _ ANTER ~ Z. DATA TRANSFERRED BY: T!? 26+13.3 p O T� I v -33 O TA, 32 CDNC.i 1 I COMPANY: R&M Conwllanl[ Ina ,F 3 8 1 STA: �' o_ _ "11�� _1 a_ DATE: 90/00/00GIF 0 4"_� T H— —c.— C _ G 3. Based on periodic field observations by the Engineer '- W� _ v an individud under his er direct au SD Of 1 " 50_� me Cantrocty—pm ided data appears to represent - -� 6" b �- RM -36 -? 69'43'57" 1320.57 - — - tha project as cons tractad. 1p _ DATA TRANSFER CHECKED BY: Frank Rast i _ 1 COMPANY: R&M Conwllanls tnc. Br. nn.E: Pro icer nano u I O'" O i PLAN R J I \ O I T R ;S ROC ; 1 �X V O t o e "CA DATE: r N I� 3 I �7 4 0 I o ca I N.I V S.I V= Jf n I F l0A- iA 1 _3B _E:;;:] X l0A 1 x E�l D zs so 100 Iso N U %, 11A 15A 16A 1 17A 18 n I 12A 1JA 14A HORIZONTAL SCALE o J •.•- �c' .': �.. RE 0 5 10 15 --5�-- - _ ... r..., q: : ' �::: �, •.. ,...7 .. .. . ,, r Y WF VERTICAL SCALE I I 745 :.. :. . 745 :.....:.....:.......... ..... :.... _ / :.. :. . - - ........ ....... .......... ........ ....... N / 1� J 740 .. �. ��.... 3 W . Q......... i . + ..._ __..... _ _ ....... _.... _ ....___ J W._._.. ......_ ......._ 3740 ¢ .........:.................EXISTING GRADE:.....:.....:...:.....:.......................:......... o.. .... / / 3 3 :u~i �rQ X I— z ....z ............................ .... .... ........... . 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M.4!.4i.... ...... ...... ....... ....... ...... _. ....... ....... ...... ..... _.. ..... ... . tt : 30.90: 0 }^^fid^N� o }zl`cD� STA. 1+33:1, ..:. run PROP D r C) a t� L: OSE • 16' WATER LINE.:. .... ...... r REMOVE CLEAN-OUT C) :.... n7 , d n . ..... . .............. _ ... _ .._.......................................... ^. w > II II > II 710 CONNECT TO EXISING PIPE + w rt Jo o w ..........................................H II................. _...... .. "r O J K —1 In EX15T:'INV. ='715:7±....:..... :..........:......... =wZZ..:...-._... xoLLzZ. 710 wZ: NOTE 2 �¢�FIE 3- Li v'-M3�3 La w 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 DESIGN DES REUSE OF DOCUMENTS MUNICIPALITY OF ANCHORAGE REV DATE DESCRIPTION By +P,��,Rxxasy��gT r',��:0F�4 XX ANCHORAGE WATER & WASTEWATER UTILITY THIS DOCUMENT, AND THE IDEAS AND 4 12 99 BID DOCUMENTS ' T�` � EAGLE RIVER WATER IMPROVEMENTS —1998 DRAWN DES DESIGNS INCORPORATED HEREIN, AS AN R S, M CONSULTANTS N C ■ /*:' 49TH *i '. INSTRUMENT OF PROFESSIONAL SERVICE C.................. . / COLONIAL PARK LID 50-18 IS THE PROPERTY OF AWWU AND IS NOT / ........................../ CHECK RPG TO BE USED, IN WHOLE OR IN PART, FOR 4 �� '' Da CE 9505nw SANITARY SEWER / PLAN & PROFILE ANY OTHER PROJECT WITHOUT THE MONTGOMERY WATSON Gy'�> 1134' '�1'' ' •.. �`r SHEET 23 of 86 SCHEDULE B APPROVED FDR WRITTEN AUTHORIZATION OF AWWU. �Errr DF �`� tAS DATE 4/12/99 GRID Nw55 REVISIONS SCALE NOTED AWWl1 PROJ. ID 0000000102 DWG C14 R&M CONSULTANTS, INC. ® 9101 VANGUARD ® ANCHORAGE, AK 99507 ® (907) 522-1707 ® FAX (907) 522-3403 ® e-mail@rmconsult.com ENGINEERING in PLANNING ® SURVEYING & MAPPING ® EARTH SCIENCES ® MATERIALS TESTING ® ENVIRONMENTAL SERVICES July 18, 2001 Municipality of Anchorage Building Safety/Plan Review 4700 South Bragaw Anchorage, Alaska 99503 R&M No. 150001 ATTN: Mr. Dan Roth RE: Colonial Park LID 50-18, Eagle River Colonial Park Subdivision Water Well Separation Distance Waiver Request Dear Mr. Roth: On behalf of the Anchorage Water and Wastewater Utility, R&M Consultants, Inc. is requesting a waiver on separation distance between six private water wells in Eagle River, and a sanitary sewer lateral. The six wells are located in Colonial Park Subdivision, on First Street, between Hillcrest Drive and Eagle River Lane. The wells are all single family, residential private wells. The sanitary sewer lateral was designed and installed in 1999. At that time, the water well separation was inadvertently overlooked and a waiver from ADEC was not obtained. Attached is a copy of the sanitary sewer lateral record drawing with the location of the six wells. The six wells are all located between 45 and 50 feet from the sanitary lateral. There are also two wells 50 feet from a sanitary sewer manhole (Sta 11 +50), and one well (Sta 7+53) 65 feet from another sanitary sewer manhole. We are requesting a waiver of the 75 -foot separation distance from a community sewer line to the six private wells, and a waiver on the 100 -foot separation from a sanitary sewer manhole to the three wells. The potential for well contamination from the sanitary sewer lateral is very minimal due to the following reasons: 1. The sanitary sewer lateral is down gradient from the water wells. The surface water flow in the area is to the southwest. The sanitary sewer lateral is south of the wells, subsurface groundwater flow is in the same direction toward Eagle River. 2. The subsurface soils consist of glacial tills with silts, which have very low to no transmissivity. Four test holes (attached) were drilled along the sanitary sewer alignment, the perched groundwater in TH 26 (Sta 5+20) would indicate the very low potential for near subsurface groundwater transmission to lower aquifers. Municipality of Anchorage Mr. Dan Ross July 18, 2001 Page 2 3. The sanitary sewer line was installed with bottle -tight ductile iron pipe, and air pressure tested to MOA Standard Specifications with no loss in pressure (no exfiltration). 4. The sanitary sewer manhole at Sta 11 +50 is a terminal manhole used for maintenance only, there is no sanitary sewerage flow. The manhole at Sta 7+53 is an in line manhole with a solid concrete base and grouted channel, there is little potential for leakage from this manhole. 5. If the sanitary sewer lateral, or manholes did leak sometime in the future, the leakage would more likely follow the pipe bedding down gradient rather than transmit through the surrounding glacial tills. This waiver request is for water wells located on the following six properties: ' Block 3, Lot 5 S1/2, Colonial Park Subdivision ' Block 3, Lot 4 S1/2, Colonial Park Subdivision ' Block 3, Lot 3 S1/2, Colonial Park Subdivision Block 3, Lot 2 Sl/2, Colonial Park Subdivision ' Block 3, Lot 1 S1/2, Colonial Park Subdivision 050 �1Lfc�', I C Us�c-30l-�Z D�b�(—I� AWWU will reimburse MOA Building Safety for waiver request processing; please contact Ms. Lynda Barber-Wiltse, P.E. (564-2751). Please contact me at your convenience if any additional information is required to process this request. Your expediency in reviewing this request would be appreciated as closing on a sale of one of the properties is pending waiver processing. Very truly yours, R PIM CONSULTANTS, INC. Frank D. Rast, P.E. Project Manager FDR: rh xc: Ms. Lynda Barber-Wiltse, P.E., AWWU 07-16.doc