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HomeMy WebLinkAboutROCKHILL BLK 4 LT 9Rockhill lock 4 Lot 9 015-063 -30 (Rev 05/02/16) Municipality of Anchorage On-Site Water and Wastewater Section • (907) 343-7904 Page 1 of 2 ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP261063 PID Number: 015-063-30 Dwelling: 0 Single Family (SF) ❑ with ADU ❑ Duplex (D) ❑ Two Single Family Project: ❑ New 0 Upgrade Name WILLINGHAM ABSORPTION FIELD 0 Deep Trench ❑ Wide Trench ❑ Bed ❑ Mound Site Address 9850 MAIN TREE ❑ other Phone Number of Bedrooms Soil Rating depth from original grade 15 0.8 GPD/SF JTotal 10 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade 4 Ft. Gravel depth beneath pipe 6 Ft. Subdivision Block Lot ROCKHILL BLK 4 LT 9 Fill added above original grade 0-0.5 Ft. Gravel length 80 Ft. Township Range Section Gravel width 2 Ft. Beds: Number of Lines Distance between lines Ft. SEPARATION DISTANCES To Septic Absorption Holding Sewer Total absorption area Number of trenches Dist. between trenches From Tank Field Lift Station Tank Line 960 Ftp 1 Ft. Well 1001+ 1001+ 50'+ TANK N Septic ❑ S.T.E.P. ❑ Holding ❑ Other Manufacturer Capacity GREER/ANCH DEEP 1500 Gal. Surface Water 100, + 100'+ Material PLASTIC Number of compartments 2 Lot Line 10'+ 10'+ NA Foundation0'+ 10'-}. LIFT STATION Manufacturer Capacity Gal. Remarks Alarm location Electrical installed by PIPE MATERIAL House to tank 3034 Tank to drainfield 3034 Installer MIKE ANDERSON PE Drainfield 3034 co/MT 3034 Inspector MIKE ANDERSON PE BENCH MARK (Assumed elevation) 101.4 ft 1st 5/6126 51$126 Inspec2nd Location and description dates: OF MH aro 4(" ITOP ON-SITE WATER AND WASTEWATER SECTION APPROVAL Engineer's Stamp Conditional Approval: Date = •' • • °' • : ' ` ItZ4.• ' - -- �.......... ., :... .............., .. �`!� • MICHAEL N. A&Dt& },�' . � rte'. CE- 9 9 ,' Septic System Approved Date./ , �j" '� ,S //� (`� '•. Note: this approval does not include well permit requirements. (Rev 05/02/16) XX X SHED MUNICIPALITY OF ANCHORAGE On -Site Water & Wastewater Program PO Box 196650 4700 Elmore Road Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 hftp://www.muni.org/onsite On -Site Wastewater Disposal System Permit Permit Number: OSP261063 Work Type: Septic Upgrade Tax Code Number: 01506330000 Site Legal Address: ROCKHILL BLK 4 LT 9 G:2438 Site Mailing Address: 9850 MAIN TREE DR, Anchorage Owner: WILLINGHAM AMY Design Engineer: FIRST WATER CONSULTING This permit is for the construction of: Effective Date: Expiration Date Lot Size in Sq Ft: Total Bedrooms: DeIMrtnient 4/29/2026 4/29/2027 a-1- Non -Public Q Disposal Field 0 Septic Tank ❑ Holding Tank ❑ Privy ❑ Water Well ❑ Water Storage All construction shall be in accordance with: 1. The attached approved design. 2. All requirements specified in Anchorage Municipal code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations (18AAC72) and Drinking Water Regulations (18AAC80) 3. The wastewater code requires inspections during the installation. The engineer shall notify the Development Services Department per AMC 15.65. Coodinate with On -Site staff regarding preferred method. 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather shall be either: a. Opened and Closed on the same day, or b. Covered, sealed, and heated to prevent freezing Special Provisions: 7 day groundwater monitoring is required. Construction may proceed at your own risk before the 7 day water monitoring is complete. Please submit stamped and signed results with the As -built Inspection Report. If the results require a design change, construction of the system will stop pending On -Site review and approval. Issued To: FIRST WATER CONSULTING Issued By: Curtis Townsend Date: 4/29/2026 Date: 4/29/2026 MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-790,. On -Site Water & Wastewater Section ON -SITE SEPTIC/WELL PERMIT APPLICATION Parcel I. D. 0 15-063-30 WILLINGHAM AMY & HOLMAN SABRINA Property owner(s) ©Day phone Mailing address 9850 MAIN TREE DRIVE ANCHORAGE, ALASKA 99507 Site address 9850 MAIN TREE DRIVE ANCHORAGE, ALASKA 99507 Legal description ROCKHILL BLOCK 4 LOT 9 Number of Bedrooms 5 Engineering Firm FIRST WATER CONSULTING Building Permit Number Not Applicable FM APPLICATION IS FOR: APPLICATION IS AN: (E all that apply) Disposal Field FX1 Initial El Septic Tank FX1 Upgrade x Holding Tank El Renewal F1 Privy R Well El Water Storage R THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: Date of Payment: Permit No. 0 S Waiver Fees: Date of Payment: Waiver No. Distance: May 2025 13030 Sues Way, Anchorage, AK 99516 907-350-9566 / firstwaterAK@gmail.com ! !! April 24, 2026 Municipalities of Anchorage On-Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 RE: SEPTIC SYSTEM UPGRADE PERMIT LEGAL: ROCKHILL BLOCK 4, LOT 9 The property owner has requested we obtain a permit to upgrade the failed septic system of the above referenced lot. We propose to remove & replace the existing septic field along with all biomat material, lengthen the trench to a 5-bedroom absorption field by installing one deep trench and 1500-gallon tank to serve the existing 5-bedroom residence. The design is based on the recent test hole conducted on April 23, 2026, by Mike N Anderson, PE. No groundwater was observed at test hole excavation, and 7-day groundwater monitoring is to occur this week. The slopes are at 10-15% at the proposed upgrade location. The lot and area are served by private & public water. The design will not impact any of the neighboring properties. Please contact us if you have any questions. Sincerely, Curtis Huffman, P.E. Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP261063, Curtis Townsend, 04/29/26 S 3 ° 4 7 ' 5 2 ' ' E 1 8 3 . 2 8 S 89°55'20''W 262.63 w o o d wa l k w a y DECK DE C K ASPHALT DRIVEWAY WELL 54.0' 5.7' 22.7 29.6' 34.4 7.712.4 ' 1.7' 5.8' 6.1'8.4' 5.8' 15.9 ' 37 . 7' X X X X WOOD FE N C E 8.3' 48. 2 34. 2 13 5. 3 N 89 55' 20" E 262.87 N 0 0 0 4 ' 40 " W 98 . 4 0 L = 8 5 . 5 9 10 ' T EL E . & E L EC . E S M' T . 10' TELE. & ELEC. ESM'T. MA I N T R E E DR I V E FIRST WATER CONSULTING ROCKHILL BLOCK 4, LOT 9 DESIGN CALCS: NO SLOPES >25% WITHIN 50'OF PROPOSED FIELD. STAKE PROPERTY LINES, WELL RADII, ESMTS, OR OTHER SEPARATIONS... PRIOR TO CONST. Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP261063, Curtis Townsend, 04/29/26 S 3 ° 4 7 ' 5 2 ' ' E 1 8 3 . 2 8 S 89°55'20''W w o o d w a l k w a y DECK DE C K WELL 54.0' 5.7' 22.7 29 . 6' 34.4 7.7 12.4' 1.7 ' 5.8' 6.1 ' 8.4' 5.8 '15.9' 37 .7 ' X X X WO OD F E N C E 8.3 ' 48.2 1 0 ' T E L E . & E L E C . E S M ' T . FIRST WATER CONSULTING NO WELLS WITHIN 100' OF PROPOSED SEPTIC TANK OR EXISTING FIELDS. DESIGN DETAILS: ROCKHILL BLOCK 4, LOT 9 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP261063, Curtis Townsend, 04/29/26 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP261063, Curtis Townsend, 04/29/26 MUNICIPALITY OF ANCHORAGE  ~ ~ , DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION e ENVIRONMENTAL ENGINEERING DIVISION 825 L Street- Anchorage, Alaska 99501 Telephone 264-4720 ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT MAi'LiNdADDR-ESs' · LEGAL DESCRIPTION LOCATIO~ welI Absor~i~n area Dwelling PERMIT NO. ~<~ ~ Manufacturer ~~ Mate~ ~ No. of~compartments ~ ~ DISTANCE TO: Well Dwe~i¥~~ PERMIT NO. O Z ~ Manufacturer Material Liquid capacity in gallons ~ DISTANCE TO: ~Z~ No. oflines I Length of 22~e1. Total length o~ lines~_ Trenchwidth~ inches ~ Q~ ~ Top of tile to finish grade ~ I Material~ ~')be~eath tile ~ inches Total effective~_absorpti~n~ ~-~area ~ Length Width ' Depth ~ PERMIT NO, ~ ~ Type of crib Crib diameter C~b dept Total effective absorption area m ~ DISTANCE TO: Well ~ ~oundation Nearest lot line ~ ~Slass Depth~ Driller Distance to lot line PERMIT NO, ~ ~ DISTANCE TO: Buildin~ion I Sewer line Septic tank Absorption area(s) OTHER PIPE MATERIALS INSTAELE~ , ~ REMARKS ~ . , ~A~PROVED DATE LEGAL ~ T~LL LOG ~, Date Drilled: Static Water Level .~.~,~. 7~ feet Gallons Per Minute~4- Draw Down NtA feet Total Feet of ?TA Type Material Drilled: 0 feet 75 S,R.A, Box 1953 H A nchorage,Alaska 99507 MUNIcIPALiTy OF ANcH ~wA'IENTAL PROTECTION RECEIVED SOILS LOG MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION 825 L. Street, Anchorage, Alaska 99501 264-4720 SOILS LOG - PERCOLATION TEST [~ PERCOLATION TEST PERFORMED FOR: LEGAL DESCRIPTION: 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2O SLOPE I I{~ll I IIIII WAS GROUND WATER ENCOUNTERED? IF YES, AT WHAT DEPTH? SITE PLAN PERCOLATION RATE /~ (minutes/inch) -' TEST RUN BETWEEN Z, ~' , FT/I~ND ;~1~ FT ~ ~ ~ ~ ~ /~ ~ /J, . :/7 Gross Net Depth to Net Reading Date Time Time Water Drop MUNICIPALITY OF ANCHORAGE Development Services Department Phone: (907)343-7904 On -Site Water & Wastewater Section Fax: (907)343-7997 Certificate of On -Site Systems Approval OSC261131 Parcel ID 015 -063-30 Legal description ROCKHILL BLK 4 LT 9 Site address 9850 MAIN TREE DR Expiration Date: 4/30/2027 Current property owner(s) WILLINGHAM AMY X The On-site system(s) is/are approved for 5 bedrooms By: Conditional approval for bedrooms, with the following stipulations: Comments or conditions: No comments Original Certificate Date: 5/22/2026 This e�ficate of On -Site Systems Approval (COSA) is intended to demonstrate the subject sy em(s) is/ in substantial compliance with municipal code. The Municipality of Anchorage, , evelopment Service Department (DSD) issues COSAs based upon representations provided by an independent professional engineer. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's submittal. ATTACHMENTS: COSA Checklist X Well Flow Advisory Absorption Field Advisory Nitrate Advisory X Tank Age Advisory Arsenic Advisory Other MUNICIPALITY OF ANCHORAGE Development Services DepartmentPhone: 907-343-7904 On -Site Water & Wastewater Section \/ Fax: 907-343-7997 Certificate of On -Site Systems Approval Application 1. GENERAL INFORMATION Parcel I.D. 015-063-30 Complete legal description Location (site address) ROCKHILL BLK 4 LT 9 9850 MAIN TREE DR, ANCH Current property owner(s) WILLINGHAM 2. ON-SITE SYSTEMS SIZED FOR 5 BEDROOMS Day phone 3. TYPE OF WATER SUPPLY: ■❑ Private Well serving # 1 dwelling units ❑ Other Non-public well as regulated by MOA ❑ Water Storage ❑ Community Well or Public 4. TYPE OF WASTEWATER DISPOSAL: ❑■ Private Septic ❑ Private Septic serving 2 dwelling units ❑ Holding Tank ❑ Community Septic or Public Sewer 5. SEPTIC TANK: ❑ Steel ■❑ Plastic ❑ Concrete ❑ Fiberglass Age NEW - See advisory if steel or fiberglass older than 20 years 6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed ❑■ Deep Trench ❑ Wide Trench ❑ Seepage Pit Waiver request for: Expedited review requested: ❑ Distance: By applying for this entitlement, this property is subject to inspection by municipal On-site staff to verify the accuracy of the information provided. COSA Fee $ �� Waiver Fee $ Date of Payment Z Date of Payment COSA # �` % C— 7 Waiver # COSA Application_Apr2025.doc COSA Checklist Legal Description: ROCKHILL BLOCK 4 LOT 9 Parcel ID: 0 15- 063- 30 If more than t well and/or septic system on lot, provide separate checklist. Structure served by this system A. WELL DATA ❑ Well log is filed with Onsite (or attached) Date drilled 7/17/85 Total depth 324 ft Cased to 274 ft ❑ Sanitary seal is functioning correctly Wires are properly protected Casing height (above ground) 18 in. Date of flow test for COSA 4/30/26 Static water level at beginning of test 65 ft. Comments B. TANK DATA Measured operating fluid level in septic tank NEW Date of pumping NEW ❑ Required maintenance completed, ifAWWTS Comments: D. DISPOSAL FIELD DATA Which system tested (date installed) NEW 0 ALL standpipes present per record drawing Total measured depth from grade 10 ft (max) Measured depth to pipe invert from grade 4 ft (min) ❑ N/A —pressurized field. ❑ Per record drawings, field is insulated. ❑� Monitor tubes go to bottom of effective. If not, state depth into effective ❑ Presoaked required if (Required if house vacant or field not used for more than 30 days prior to date of test) Gallons introduced gallons date Any rejuvenation treatment (past 12 months) _ If yes, enter date COSA Checklist_May2025.docx Well production at time of test 3+ gpm Water storage tank volume 0 gallons Well disinfected for coliform test? ❑ Yes H No X Coliform bacteria is Negative Nitrate 8.4 mg/L ❑ Nitrate less than MRL (ND) Arsenic Collected by Date 4/30/26 _ ug/L X Arsenic less than MRL (ND) MINA C. LIFT STATION ❑ Required maintenance completed Age of lift station _ years Lift station material Comments: Adequacy test date NEW Results ✓❑ Pass Fluid depth prior to test NEW in Water added _ gal New fluid depth _in Elapsed time _ min Final fluid depth _ in Absorption rate 750+ gpd FIELD STATUS — POST RECOVERY Effective depth (per record drawings) 72 in Effective depth used 2 in Effective depth remaining 72 in E. SEPARATION DISTANCES From Well on Lot to: (Please enter distances if less than required) Septic Tank/Lift Station on Lot > 100' Z Yes if No _ ft Neighboring Tank > 100' ✓Q Yes if No _ ft Disposal Field on Lot > 100' Q Yes if No _ ft Sewer Manhole/Cleanout > 100' Q✓ Yes if No _ ft Sewer Service/Septic Line > 25'Q✓ Yes if No _ ft Holding Tank > 100' Q✓ Yes if No _ ft Neighboring Disposal Fields > 100' Animal Containment > 50' Yes if No _ ft Q✓ Yes if No _ ft Manure/Animal Excreta Storage > 100' Sewer Line/Main > 100' Q Yes if No _ ft❑✓ Yes if No _ ft ❑ N/A — Served by Community Well (not on lot) or Public Water From Septic/Holding Tank and Disposal Field(s) on Lot to: (Please enter distances if less than required) Tank to Foundation > 10' ❑✓ Yes if No _ ft Surface Water > 100' Q✓ Yes if No _ ft Field to Foundation > 10' Tank to Property Line > 5' Field to Property Line > 10' ❑✓ Yes if No _ ft 0 Yes if No ft Q✓ Yes if No _ ft Water Main/Service Line > 10' Q✓ Yes if No _ ft F. ENGINEER'S COMMENTS Wells on Adjacent Lots: Wells > 100' Community Wells > 200' Q✓ Yes if No _ ft Q✓ Yes if No _ ft If tank or field is under driveway comment below G. CERTIFICATION & STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Certificate of On -Site Systems Approval Guidelines, indicates that the on-site water supply and/or wastewater disposal system appears to comply with applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation, unless noted otherwise. Name of Firm MIKE ANDERSON PE Engineer's Printed Name SAME COSA Checklist_May2025.d0cx Phone 727-8864 Date 5/17/26 N 89 55' 20" E 262.87 Nitrate Advisory Certificate of On -Site Systems Approval # OSC261131 Subdivision: Rockhill, Block: 4, Lot: 9 A water sample revealed a nitrate concentration of 8.4 milligrams per liter (mg/Q. The Environmental Protection Agency (EPA) has established a maximum contaminant level (MCL) of 10.0 mg/L for public drinking water systems. While private wells are not subject to this regulation, EPA standards are based on existing health information and can therefore be used to gauge the relative quality of water from private wells. Since nitrates are known to slowly increase, we recommend you monitor the water quality. Please see the attached "Nitrate Fact Sheet" for important information regarding nitrate. This advisory must be attached to all copies of the subject Certificate of On -Site Systems Approval. Mailing Address: P.O. Box 196650 * Anchorage, Alaska 99519-6650 * www.muni.org Parcel I.D. Municipality of Anchorage Development Services Department Building Safety Division On-Site Water and Wastewater Program 4700 Elmore Street P.O. Box 196650 Anchorage, AK 99519-6650 www.muni.org/onsite (907) 343-7904 CERTIFICATE OF ON-SITE SYSTEMS APPROVAL FOR A SINGLE FAMILY DWELLING o~5- - o~/2 - 3'0 1, GENERAL INFORMATION Complete legal description Location (site address) Current Property owner(s) Mailing address COSA # Expiration Date: Lending agency 3/7/// G~lly &£~<.ra~ 30 ~-~.~ Dayphone Day phone Mailing address Real Estate Agent Mailing Address Unless otherwise requested, COSA will be held by DSD for pickup. NUMBER OF BEDROOMS: ~ TYPE OF WATER SUPPLY: Individual Well Individual Water Storage Community Class ~ Public Water System Well TYPE OF WASTEWATER DISPOSAL: [] Individual On-site [] [] Individual Holding Tank [] [] Community On-site [] [] Public Sewer [] The Municipality of Anchorage Development Services Department (DSD) issues Certificates of On-Site Systems Approval (COSA) based only upon the representations given in paragraph 4 by an independent professional civil engineer registered in the State of Alaska. Certificates of On-Site Systems Approval are required for the transfer of title (except between spouses) for properties served by a single-family on-site wastewater disposal and/or water supply system. DSD also issues COSAs upon request to homeowners. Certificates of On-Site Systems Approval are valid for 90 days from the date of issue for properties served by a private or Class C well and may be reissued with new water sample results. (Certificates may be reissued for a period of up to one year with valid water samples.) Certificates are valid for one year for properties served by Class A or B wells or a public water system. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 4. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Certificate of On-Site Systems Approval Guidelines for this application, shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is(are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation..~'~' ~ ~-/-~¢ ~,,.{ ~.x.,~ NameofFirm ~(~p ~c~~[ ~r~ Phone Address )'1~3~ ~c4~ ~~ ~~j ~ ~ Engineer's Printed Name ~~o~ ~. )~~ Date DSD SIGNATURE Approved for Disapproved. Conditional approval for bedrooms. bedrooms, with the following stipulatic Attachments: COSA Checklist Septic System Advisory Well Flow Advisory Nitrate Advisory Arsenic Advisory Maintenance Agreements Supplemental Engineer's Report Other (Rev. 11/05) Original Certificate Date: Municipality of Anchorage Development Services Department Building Safety Division On-Site Water & Wastewater Program ~ 4700 Elmore Street P.O. Box 196650 Anchorage, AK 99519-6650 www. muni.org/onsite (907) 343-7904 CERTIFICATE OF ON-SITE SYSTEMS APPROVAL CHECKLIST IfA, B, or C provide PWSID #~ Legal Description: ~,1~ ~ A. WELL DATA Well type ~/' Date completed 7,//7/~6'" Sanitary seal (Y/N) ~ Total depth 3 Z'-/ ft. Cased to ?-"/¥ ft. FROM WELL LOG ft. g.p.m. Date of test Static water level Well production WATER SAMPLE RESULTS: Coliform {:~ colonies/100 mL Nitrate 7. ~7 mg/L Arsenic: ~. ~" ug/L date of sample: 7/tS' / B. SEPTIC/HOLDING TANK DATA Tank Type/Material. _~_~ Ac. // ~' ~ z I Tank size I ?--~0 gal. Number of.Compartments Foundation cleanout (Y/N) ~ Date of pumping II !!&'/ ABSORPTION FIELD DATA Depression over tank (Y/N) ~ Pumper /~r -f-- Parcel ,4'. Well Log (Y/N) "r' Wires properly protected (Y/N) casing height (above ground) AT INSPECTION 7, ~'~' "/' g.p.m. Other bacteria 'colonies/100 mL Collected by: Date installed 7 / l ~ / ! 9 g,,_~"-- Cleanouts (WN) High water alarm (Y/N) AJ. ~ Date installed 7/lo /~ Soil rating (g.p.d./~ or ft%drm) I~'&- r~or~,~stem type Length ~ ~ ff. Width ~. ~- ff. Total depth I 0 ff. Eft. absorption ama 7~ff~ Monitoring tube Date of adequacy test II /~/~ Results(Pass/Fail) Fluid depth in absorption field before test ~ in. Water added ~Ygal. Elapsed Time: ~ min. Final fluid depth ~n. Absorption rote >= Any rejuvenation treatment (past 12 mo.) (WN & ~pe) ~ ~ ~ ~ ~ o ~ ~ If yes, give date Gravel below pipe &'-, 5- ft. Depression over field K/ For z,/. bedrooms New depth,f'2-'l~in. 0'~ g.p.d. D. LIFT STATION /~J' ?1--. Date installed "Pump on" level at ~ in. Datum SEPARATION DISTANCES Size in gallons "Pump off" level at Cycles tested in. ManhOle/AcceSs (Y/N) · High water alarm level at Meets alarm & circuit requirements? in. SEPARATION DISTANCES FROM WELL ON LOT TO: SePtic tank/lift station on lot ~) ~q ' ~ Absorption field on lot Public sewer main Sewer/septic service line Animal containment areas On adjacent lots On adjacent lots ~> ! c-"-O- / Public sewer manhole/cleanoUt Holding tank Manure/animal excrete storage areas. SEPARATION DISTANCES FROM SEPTIC/HOLDING TANK ON LOT TO: Building foundation I ~ ~ Property line ~' O" Absorption field Water main /V. /I-, water service line ;:> lO ' Surface water 'Wells on adjacent lots "~ /. O'o ~ SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOT TO: Propertyline ~ ~'-~' Building foundation ~ ~ ~ ' Water main Water Service line ;::> ~ ' Surface water ~ ~ ~'o ' Driveway. parking/vehicle storage ~ '~ ~ Curtain drain ~/~,~ £E~,'~ Wells on adjacent lots ~, [~'~ ~ F. COMMENTS ENGINEER'S CERTIFICATION I certify that I have determined through field inspections and review of Municipal records that the above systems are in conformance with MOA COSA guidelines in effect on this date. Engineer's Printed Name -T-Jl¢~,('~,,'-E' /=.. ~--t~,.~ ~-~ Date COSA Fee $ ~/~ c~7 ~ Date of Payment Receipt Number /'~ q~ ~ ~) ~, (Rev. 11/05) Waiver Fees Date of Payment Receipt Number Municipality of Anchorage P.O. Box 196650 · 4700 Elmore Road Anchorage, Alaska 99519-6650 · (907) 343-7904 · Fax (907) 343-7997 ,,h,,,~tP:llwww.muni.or.qlOnsite Development Services Department On-Site Water and Wastewater Pro,qram )epartment **** VARIANCE/WAIVER REVIEW **** WaiverS: OSP101284 COSA#: OSC101322 PID#: 015-063-30 Legal Description: Rockhill Block 4 Lot 9 Engineer: Flattop Technical Services Permit: Applicant: Billy and Susan Andrews Your request for a waiver of the required 100 feet horizontal separation from the septic tank to the private well has been approved. The approved separation distance is 99.0 feet. This waiver approval applies to the existing septic tank only. Any future upgrade to the on-site wastewater disposal system will require all separation distances be met or another approval from this department. Waiver is Granted: X Waiver is not Granted: Date: //~-/~7//~c~ Approved by: ! Name of RevieWer Rer_,~: No fee Amount: Date Paid: **** VARIANCE/WAIVER REVIEW **** MAIN TREE DRIVE 0~'$6 N ,,0~ ,~0 O0 N 0z O0 >E <co Oz ~LU Oz 'lC' TELE. & ELEC. ~, , ES,L~Zo£ S FLATTOP TECHNICAL SERVICES CIVIL & ENVIRONMENTAL ENGINEERING * ENERGY CONSERVATION & ANALYSIS TED MOORE, P.E. 14530 ECHO CANYON ROAD PH.IFAX: (907)345-1355 ANCHORAGE, AK 99516 E-Mail: tgmoorei~gci.net November 23, 2010 M.O.A. DSD On-Site Services P.O.Box 19-6650 Anchorage, AK 99519-6650 Dear Sirs: By means of this letter I am requesting issuance of a waiver allowing the private well on Lot 9, Block 4, Rockhill S/D located at 9850 Main Tree Drive to be approved in its present location 99 feet from the septic tank on the same lot. A site plan and site detail illustrating the relevant configuration, as well as a COSA application are enclosed. Per my telephone conversation with Ross Noffsinger on 11/17/2010, I understand that will the Municipality has agreed waive its waiver fee for approving this minor deviation from standards. According to Municipal records the existing 1250-gallon Greer steel septic tank was installed on 7/10/1985, at which time the well had not yet been drilled. According to the driller's log the well was drilled on 7/17/1985 and has a total depth of 324 feet. The casing is reported to be perforated between 75 feet and 80 feet. Water samples which I collected on 11/15/2010 showed 0 coliform bacteria per 100 ml, 7.17 mg/1 of nitrate nitrogen and less than 5 micrograms per liter of arsenic. The enclosed as-built property survey prepared by Shane Holt on 11/15/2010 revealed that the separation distance between the center of the well cap and the center of the standpipe for the first compartment of the septic tank is 102.0 feet. By carefully plotting the dimensions of a typical septic tank along with the configuration from the as-built survey, it appears that the closest comer of the septic tank is 99.7 feet from the center of the well casing, assuming the standpipe is straight and in the center of a typically configured septic tank manhole. This configuration is illustrated on the enclosed site plan and site detail. The requested waiver to 99 feet is to allow for the radius of the well casing, if applicable, and to compensate for the fact that the septic tank cleanout leans slightly away from the well. Thus, as you can see, the requested waiver is for a very minor deviation from code requirements. It is probable that the driller could not measure the straight line distance between the septic tank standpipe and the well because of the intervening house foundation; even if he did it is probable that he believed the 102.0 foot separation from the septic tank standpipe was sufficient to achieve the required 100-foot separation from the closest portion of the tank. The fact that the surface elevation at the septic tank is lower than the surface elevation at the wellhead, combined with the presence of the intervening house foundation guarantees that, were the tank to overflow, there is no possibility of effluent flowing towards the well. When the tank needs to be replaced in the not-too-distant furore, it will be a simple matter to locate the replacement tank so as to achieve the minimum required separation distance. It should be recognized that the measured nitrate level of 7.17 mg/1 approaches the maximum allowable concentration of 10.0 mg/1, however this level is consistent with similar elevated nitrate levels observed in other wells on adjacent properties. For examples; on Lot 10, Block 4 a nitrate level of 5.48 mg/l was measured on 6/8/2010, on Lot 7, Block 4 a nitrate level of6.11 was measured on 6/18/2004, and on Lot 6, Block 4 a nitrate level of 7.80 was measured on 12/8/2006. The source of the elevated nitrate levels observed in this and other Hillside areas has yet to be determined; however there is no indication that construction of the well or the proximity of the tank is responsible. Thank you for your favorable consideration of this waiver request, and for your fairness to the homeowner in waiving the typical Municipal waiver fee. Please give me a call if you have any questions. Billy Andrews Dave Windsor Sincerely, Ted Moore, P.E. o SEPTIC ".. SYSTEM '.... / ,, '' ..... R = 1"00' ..'" HOUSE ..... DRIVE --..~'.,~ .., SEPTIC '"' LU TANK ..-" _ SOIL ABS. TRENCH LOT 9 ....... LOT 10 SEPTIC AREA "F- ~ ~_oI~,1,~,,~,~ ~. LOT 9, BLOCK 4, ROCKHILL S/D J &'~ e~ ~A WELL AND SEPTIC SYSTEM ~ ,~ ~]-- %¢, ~ SITE PLAN j FLATTOP TEC~ICAL SER~CES 1 INCH = 50 FEET ~,~ · . ~ 14530 ECHO CANYON ROAD D~WN BY TFM ~. ~ CE- 3589 .~ :,~ NOVEMBER, 2010 ~~__~.~ NOTE: THIS IS NOT A SURVEYED P~T. ~~_ . . ALL LOCATIONS SHOWN ARE APPROXIMATE. LOT 9 WELL R = 100' HOUSE TANK - SOIL ABS. TRENCH ~ eo~oe ooe eoo eo eeeee ooeee ~ ~ . mEODOREF. MOORE DRIVE LOT 9, BLOCK 4, ROCKHILL SID WELL AND SEPTIC SYSTEM SITE DETAIL -"~L~TTo--pTEcHN;CA-L SER;icES ' 1 INCH: ;0 ~EET- 14530 ECHO CANYON ROAD / DRAWN BY TFM _ AN_CH_ 01~_ GE~,_.~LAS~KA_995 l~ .... NOVEM_BER~?O_I 0 NOTE: THIS IS NOT A SURVEYED PLAT. ALL LOCATIONS SHOWN ARE APPROXIMATE MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION DIVISION OF ENVIRONMENTAL HEALTH CERTIFICATE OF INSPECTION FOR HEALTH AUTHORITY APPROVAL OF ON-SITE SEWER AND WATER FACILITY 264-4720 Application Date ,~ GENERAL INFORMATION (a) Legal Description (include lot, block, subdivision, section, township, range) Location (address or directions) ' ,, (b) ApPli~;i~i'Ni~;~.~.-~_//'~5~f ~/.)/~',~:~t~' Telephone:Home.~4~,"/'~,~ Business ~-W~I :" Appli~an~ Address .,~(~, · (c): &~plicant is (check.on'e): Lending Institution D; Owner/buitder~; Buyer ~; Other ~ (explain); (d),. Lend~rtg Inst~tubo~ .' ff'~ ,;? ' Address "'"* :' ,~'~f* , .......... .: ~,.~'--'~ . (e) Real.Estate..c°m~.. :.~ and Agent Address Telephone Telephone (f) Mail the HAA to the following address: TYPE OF RESIDENCE Single-Family'S. Multi-Family [] Number of Bedrooms ~ Other WATER SUPPLY Individual Well~' Community [] Public [] Note: If community well system, must have written confirmation from the State Department of Environmental Conservation attesting to the legality and status. 4. SEWAGE DISPOSAL Onsite.~ Public [] Community [] Holding Tank [] Note: If community weil system, must have written confirmation from the State Department of Environmental Conservation attesting to the legality and status. 72-025 [11/84) Page I of 2 ENGINEERING FIRM PROVIDING INSPECTIONS, TESTS, FILE SEARCH, DATA AND INFORMATION As certified by my seal affixed hereto and as of the va idat on date ~shown below, I verify that my investigation of this Health Authority Approval shows that the on-site water supply and/or wastewater disposal system is safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is in compliance with all Municipal and State codes, ordinances, and regulations in effect on the date of this inspection. Name of Firm '/~'~ Telephone Address /.~7~'~ ~'./ .~-~'~ ~'~./.~ /'~'., Date Approved ' ~ ,, Disappr0ve~. Condition~-~" Terms of Conditional Approval CAUTION The Muncipality of Anchorage Department of Health and Environmental Protection (DHEP) issues Health Authority Approval certificates based solely upon the representations given in paragraph 5 above by an independent professional engineer registered in the State of Alaska. The DHEP does this as a courtesy to purchasers of homes and their lending institutions in order to satisfy certain federal and state requirements. Employees of DHEP do not conduct inspections or analyze data before a certificate is issued. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. WELL DATA MUNICIPALITY OF ANCHORAGE (MOA) HEALTH AUTHORITY APPROVAL (HAA) CHECKLIST - FEBRUARY 1984 264-4720 Legal Description: ~°~'~ 7'7z Well Classification Well Log Present~N) Total Depth 3;7-'~'/~ Cased to Static Water Level ?-.~/~ Casing Height Above Ground Electrical Wiring in Condui (Yt~) Separation Oistances from Well: To Septic/Holding Tank on Lot To Nearest Edge of Absorption Field on Lot To Nearest Public Sewer Line Cleanout/Manhole Water Sample Collected by Water Sample Test Results MUNICIPALITy OF ANCHORAGE DEPT. OF HEALTH & ~I~IVIRONMENTAL PROTECTION >~'/I/~ If A, B, C, D.E.C. Approved (Y/N) Date Completed 7"/?~'5'/ Yield ~Td t Depth of Grouting Pump Set At '~)j'~ Sanitary Seal on Casin N) Depression Around Wellhead (Y~"~ ! /~L~ ; On Adjoining Lots /42~,- ; On Adjoining Lots To Nearest Public Sewer To Nearest Sewer Service Line on Lot Comments B. SEPTIC/HOLDING TANK DATA Date installed Standpipes&N) Air-tight Caps~)N) Depression over Tank (Y~N.¢I Pumping/Maintenance Contract on File (Y/N) Holding Tank High-Water Alarm (Y/N) Separation Distances from Septic/Holding Tank: Size ,/~'~ g"~'g NO. of Compartments Foundation Cleanou~,,N) Date Last Pumped ~///~ ;for djh Temporary Holding Tank Permit (Y/N) To Water-Supply Well To Property Line To Water Main/Service Line Course / To Building Foundation //~"~" To Disposal Field ~' To Stream, Pond, Lake, or Major Drainage Comments Page I of 2 ABSORPTION FIELD DATA Soils Rating in Absorption Strata Date Installed · Width of Field ~",.~' Square Feet of Absorption Area Depression over Field (Y~ Results of Last Adequacy Test Separation Distance from Absorption Field: Type of System Design '-~/ Length of Field ~'~'~' / Depth of Field ,~ ~' Gravel Bed Thickness ~'.~ / Standpipes Present(~) Date of Last Adequacy Test To Water-Supply Well /~,~' To Property Line To Building Foundation -"~'" ! To Existing or Abandoned System on Lot ; On Adjoining Lots /~ 7*' To Water Main/Service Line ,'u~/,,'~¢' To Cutbank (if present) TO Stream/Pond/Lake/or Major Drainage Course To Driveway, Parking Area, or Vehicle Storage Area Comments LIFT STATION Dat~ Dimensions Size in ?at.l.c:ns . ~ Manhole/Access(Y/N) "Pump On" Level at ~'"'--~_ "Pump Off" Levet at High Water Alarm Level at ~"..,...,~ent (Y/N) Tested for Pumpin~J~>yc, L~during Adequacy Test. Meets MOA Electrical Codes (Y/N) Comments ** Check Permitted Bedroom Rating Against HAA Request ** I certify that I hav(~che~ked, v(~rified, or conformed to all MOA and HAA guidelines in effect on the date of this inspection. Signed ~ Company /~5 MOA No. ~ ~' Receipt No. 5V Date of Payment Amount: $ Page 2 of 2 72-026 (11/84) ALASKA ENVIRONlU~NTAL CONTROL SERVIC, , INC. 12OO West 33rd Avenue. Suite B ANCHORAGE. ALASKA 99503 (907) 561-5040 CALCULATED BY CHECKED BY SCALE OF DATE__ DATE