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Home My WebLink AboutTIMBER RIDGE BLK 2 LT 1Timber Ridge Block 2 Lot ! #050' 321 - 19 Municipality of Anchorage Development Services Department off.site water & wastewater plogmm P.O. Box 196650 Anchorage. AK 99519-6650 Legal Desc~pflon: A. WELL DATA We~ ~ PRIVATI~ Date completed Total depth 9/91 100 ~ HEALTH AUTHORITY APPROVAL CHECKLIST TIMBER RIDGE S/D; LOT 1, BLOCK 2~ Parcel ID: Data of test Static watar level 50 Well prmJuction 5.0 WATER SAMPLE RESULTS: Coliform 0 colonies/100 mi. Data of semple: 7/10/01 B. 8EPTICfl-iOLDING TANK DATA If A. B, or C provide P1NSID~ N/A Sanitary seal (Y/N) YES Cased to *27 ft. FROM Wlm t LOG g/gl 050-321 - 19 *CASED TO BEDROCK Well Log (Y/N). YES Wlms propertypmtactad (Y/N) YES casing height (above ground) 12+ AT INSPECTION 7/10/01 42 ~ 3.6 g.p.m. Nltmto 5.52 mg./L. Otherbectoda 0 Collected by: AWWC, INC. colonlesilO0 mi. STEEL Date Installed 6/25/85 Tanl~slze 1250 gal. Number of campartments 2 Cleanouta(Y/N) YES Foundafl~n'clsenoUt(y/N) YES Depreselonovertank(Y/N) NO Hlghwataralarm(Y/N) N/A Da. ta°fpu~lplng 7/16/01 Pumper OLD McDONALDS PUMPING ABSORPTION FIELD DATA Date Installed s/=~/~ 8oil rating (g.p.d./lt~oK~)) 165 Length 67 ft. Width 36 It. System type TRENCH Gravel below pipe 5 Totaldepth g ft. Eff. abeorpUonarea 670 fl" Monltodngtube YES Data of adequacy test 7/18/01 Rseults (PessiFall) PASS Flulddepthinabonrpflonfleldboforetost o in. Watoradded1528gal, F. Ua~ 'nm~: lO55 min. Final fluid depth 0 In. Absorption rata >= Any rejuvenation treatment (pest t2 mo.) (Y/N & type) NONE KNOWN lt. Depression over field NO For 4 bedrooms Newdepth 55 In. 600+ g.p,d. ff yeS, give data - D. UFT ~i'ATION Date Installed Size in gallons Ma~__~__ m 'Pump on' level at in. 'Pump . High water afarm level et In. ~ Cycles tested Meets alarm & dmult mqulmmente? E. SEPARATION DISTANCE8 SEPARATION DISTANCES FROM WELL ON LOT TO: Septic tank/tiff station on lot Absorption field on lot. Public sewer main Sewer/se~c service line Property line 10'+ Water service line 10'+ Curteln drain NONE KNOWN F. COMMENTS *'90'+ N/A 25'+ SEPARATION DISTANCE8 FROM SEPTIC/HOLDING TANK ON LOT TO: Building foundation 5'+ Property line 5'+ Water main N,/A Water sewlce I~e 10'+ Wells on adjacent lots 100'+ SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO: Building foundation 10'+ Surface ~mter 100'+ Wells on adjacent lots. 100'+ ** WAIVER ISSUED 9,//5,/91 On adjacent lots 100'+ On adjacent lots, 1 oo'+ Public sewer manhole/cteenout Holding tellk N/A Abeo~tion field 5% Surface water 100'+ Water main N,/A Drkeway, perking/vehicle etemge lO'+ G. ENGINEER'S CERTIFICATION I cerlffy that I have determined through field Inspe~ons end review of Municipal mcenls that the above systems em in con~'mence with MOA HAA guidelines in effect on this date. Engineers Printed N~ma/ JEFFREY A. GARNESS I.IAAFee$ ~).~ Oate of Payment '7/[~1/~1 Receipt Number 'TY ~'~ (~v. 12~o) Waker Fee $ Date of Payment Receipt Number Municipality of Anchorage Buildlng $,',.fe~' D~vlslon P.O. Box 19Cfo50 * 4700 S. Bragaw Strcct Anchorage, Alaska 99519-6650 · (907) 343.8301 http://~'w.ci.m~choragc.ak.us 08/23/01 Jeffrey A. Garness, PE Alaska Water & Wastewater Consultants, Inc. 6901 Debarr Road, Suite 2B Anchorage, Alaska 99504 Subject: Waiver Reques. t for Timber Ridge Subdivision Block 2 Lot 1 Waiver Request #WR010066 Parcel ID #050-321-19 Health Authority Approval Certificate Number HA010377 Public Works Dear Mr. Gamess: Your request for a waiver of the required 100 feet horizontal separation from the absorption field to private well has been approved. The approved separation distance is 90.0 feet. This waiver approval also includes an amendment to the previously approved waiver in June 1992 of 90 feet from the well to the septic tank to 89 feet. This waiver approval applies to the existing on-site wastewaterdisposal system to private well separation only. Any future upgrade to the on-site wastewater disposal system 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, Civil Engineer On-Site Water & Wastewater Program Municipality of Anchorage Development Services Department Building Safety Division On-Silo Water and Wastewater Program 4700 Bmgaw Sm:et P.O. Box i96650 Anchorage, AK 99519-6650 www.ci.anchorage.nk.us (907) 343-7904 W'RO: W~010066 Waiver Review Worksheet o5'o PID~: eag.4a4..a9- ' HA~: ~ Permit#: Date Received: 8/9/01 Legal uescription: ock 2 Lot I Engineec Jeffrey A, Gamess. P.E.. Alaska Water & Wastewatsr Consultants, Inc. 6901 Debarr Rd.. Anchoraoe. AK 99504 Applicant: W~lt Jones Waiver Requested: I[1:~ f~)~ from Well to Field. and 89 feet from Well to tank Criteria: Geotogy A. Water Table B. Soil Soq)tion C. Permeability D. WaterTable Gradient E. Horizontal Separation Points: Total: Waiver is Granted: X Waiver is not Granted: Lfst Conditions or Reasons for above: .~'McE Name of Reviewer Rec~: 8482 Amount: $920.00 Date Paid: 8/9/2001 '.'7,'. I TO THE SE~'r/c I 5. C.~.0. ?or. rS Z ALASKA WATER & WASTEWATER CONSULTANTS, INC. August 7, 2001 Municipality of Anchorage Development Services Department On-Site Services Section P.O. Box 196650 4700 South Bragaw Street Anchorage, Alaska 99519-6650 Reft Waiver Request for ~ Subdivision, Lot 1, Block 2 ,-J-,, I - ~ The existing 4 bedroom house is served by a private well and septic system. The well and septic system were installed the spring of 1983. The original well on the property was drilled on 6/6/83 and was abandoned in 1991 because of separation distance issues. The new well was supposed to have been placed 90+ feet from the septic tank and 100+ feet from the drainfield. DHHS issued a 90 waiver between the well and septic tank in 1991. According to the 6/8/92 HAA that was issued, the separation distance between the well and septic tank and drainfield was 90 feet and 100 feet. AWWC was recently retained to obtain an HAA on the subject property. When taking our field measurements, with a rag tape, it was easily determined that the separation distance between the well and the trench sump was only 92 feet. If the with of the trench is taken into consideration (36 inch wide trench), it is reasonable to assume that the trench sidewall is about 90.5 feet from the edge of the well casing. We are requesting that a 90 feet waiver be granted. In addition, based upon our field measurements, it appears that the closest (buried) portion of the septic tank may be as close as 89 feet from the edge of the well casing. We are requesting that the existing waiver be amended from 90 feet to 89 feet. Justification for the waivers is the same as for the original waiver requested in 1991. The following factors should also be noted: · The ground level at the trench sump is approximately 5-8 feet lower in elevation then the ground elevation at the well head. If the septic system was to overflow, the effluent would not travel toward the well head. · Attached is a copy of the drillers log for the subject well, the abandoned well, and well logs for Lots 9 & 10, Bk 2. Bedrock was encountered between 10 and 40 feet. · Recent water samples indicated nitrate levels of 5.52 mg/L and no bacteria. In the Spring of 1991 (typically when nitrate levels are more dilute) the nitrate level was 3.5 mg/L. In short, 6901 Debarr Road, Suite 2B * Anchorage, AK 99504 Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: akwwc.com although the nitrate level is moderately higher at this time, it is probably due to the seasonal variation and not the subject encroachment. The existing encroachment has existed for approximately 10 years. Given the shallowness of the bedrock profile, it is reasonable to assume that the impact of the encroachment/s (nitrates migrating through the bedrock) have been fully recognized at this time and that significant further degradation would not be anticipated. Based upon the aforementioned facts, it appears that there is minimal risk associated with granting the requested waivers. If you have any questions, please contact us at 337-6179. Thank you for your assistance and consideration of this matter. Sincerely 6901 Debarr Road, Suite 2B * Anchorage, AK 99504 Ph: (907) 337-6179 * Fax: (907) 338-3246 * Website: akwwc.com ~/24/95 16:W7 C'O~E~CI~L TESTING" 9~941211 NO.~ ~1 CT&E Environmental Services Inc. taboratoryDivision - d~ Laboratory Analysis Report OC Allowable Ext. Anil t~itraCe-N 5.58 m'~/L EPA 353,2 10. 04/21/95 L~42 ........: ;:; ;;;;;,:,;,;~;:,::..:::;"-,~---------:~ .................................................................. ~. ~,,,,,,~,, " 200 W. Potter Dr?e, Anchorage. AK 9957-1605 -- Tel: (907) 562-2343 Fa~: (907) 561-5301 __ ~7/20/01 .......... B.S,~, , A~SI~ ~TER & ~STEWATER GONSH[TA~8, ING.~ ........................ 670-4604 2 OF 2 ~ ~2 .... .... ..~ TIMBER RIDGE, LOT 1, BLOCK 2 SITE P~N t~.~._.Ft.tn~ti.-- JUL-18-OI 14:24 FROI~-CTIE ENVIRC~I,ENTAL SRV ,~kK CTIE Environmental Service. Inc. 9075615301 T-I?T P.02/03 F-498 C'T&£ Ref,# Client Natr~ Project Name/~ Client Sample ID Matrtx Ordered By PW$ID Sample Remark$: I014275001 AK Water & Wastcwater Comultanfs Inc. Timber PAdRe S/D Lot I Bk 2 Timber PAdge S/D Lot 1 Bk2 Drinking Water Client Printed Date/Time 07/18/2001 9:28 Collected Date~'ime 07/10/2001 14:15 Received Date/Time 07/11/2001 17:05 Technical Dlreclor Stephen C. £de Retea ted B,~,~j~J~ ParamL~-w Ni~te-N Resutt~ 5.52 l,,~i~ Method 0.500 mg/L EPA 300.0 ¢<10) 07/I 1/01 SCL I~:Lc ~'obi o'l og¥ V.abo~&t:oz-¥ TotalColiform 0 0 col/lOOn~ SMIS9222B {<1) 07/11/01 KAP