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Home My WebLink AboutELMORE #2 BLK 10 LT 10Elmore #2 Block 10 Lot 10 #018-17-316 Permit Number: Tax Code Number: Work Type: On-Site Wastewater Disposal System Permit OSP161249 O18173160O0 Septic MUNICIPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 EImore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Upgrade Permit Effective Dates: September 20, 2016 to September 20, 2017 BesignEngineer: GARNESS ENGINEERING GROUP LTD Subdivision: ELMORE #2 Site LegalAddress: ELMORE #2 BLK 10 LT 10 G:3036 Owner/Address: KATMAI RESOURCES LLC 3801 CENTERPOiNT DR #200 ANCHORAGE AK 995030000 Site Mailing Address: 4701 E 147TH AVE, Anchorage Lot Size in Sq Ft: Total Bedrooms: 40280 3 This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank N Privy N Private Well N Water Storage All construction must be in accordance with: 1. The attached approved design. 2. Ali 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 (ISAACS0). 3. The wastewater code requires inspections during the installation. The engineer must notify the Development Services Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must either: A. Open and Close on the same day. B. Covered, sealed, and heated to prevent freezing. Received By: '' Issued By: Date: Date: Municipality of Anchorage P.O. Box 196650 ® 4700 Elrnore Road Anchoraqe, Alaska 99519-6650 ® (907) 343-7904 ® Fax (907) 343-7997 http:llwww.muni.or.qlOnsite Development Services Division On-Site Water and Wastewater Proqram **** VARIANCE/WAIVER REVIEW **** WaiverC¢: OSV 161106 COSA#: PID#: 018-173-16 Legal Description: Elmore #2 BI0 Engineer: Garness En.qineerin.q Group Permit~: OSP16124!~ Applicant: Brian Broderick Your request for a waiver of the required I00 feet horizontal separation from the absorption field to the private well has been approved. The approved separation distance is 90.0 feet. In addition, the field may he 35 feet from the excessive slopes. Also, the sand filter requirement is waived. This waiver approval applies to the proposed absorption field only. Any future upgrade'to the on~site wastewater disposal system will require all separation distances be met or another approval from this department. [] The affected adjacent property owner(s) have been given a 7 day notice regarding this waiver. [] Notarized letter(s) of nonobjection have been received from the owner(s) of the affected adjacent property. [] Adjacent properties are not affected by this waiver. Waiver is Granted: X Waiver is not Granted: Date: (~tA~t/6 Approved by: ,.Na~me~'~ofRe~ve~w~., **** VARIANCE/WAIVER REVIEW **** MUNICIPALITY OF ANCH( Community Development Department Development Services On-Site Water & Wastewater Program Mayor Dan Sullivan Phone: Fax: 90; On-Site Sewer/Well Permit Application For A Single Family Dwelling Parcel I.D. 018-17-316 Properly owner(s) BRIAN BRODERICK Mailing address 4701 EAST 147TH *ANCHORAGE, AK 99516 Day phone 229-6499 Site address 4701 EAST 147TH *ANCHORAGE, AK 99516 Legal description (Sub'd, Block & Lot ) ELMORE #2; BLOCK 10, LOT 10 Legal description (Township, Section & Range) Lot Size Sq. Ft. Number of Bedrooms APPLICATION IS FOR: ( [] all that apply) Absorption Field [] Septic Tank [] Holding Tank [] Privy [] Private Well [] Water Storage [] APPLICATION IS AN: Initial [] Upgrade [] Renewal [] TYPE OF DEWELLING: Single Family (SF) [] (w/wo ADU) Duplex (D) [] Multiple Dwellings [] (SF and/or D) THIS APPLICATION INCLUDES A VARIANCE/WAIVER REQUEST FOR: DRAINFIELD TO WELL; DRAINFIELD TO SLOPES >25%; SAND FILTER Distance: 90 FEET; 35 FEET; INSITU SOIL I certify that the above information is correct. I further certify that tl~is is in accordance with applicable Municipal codes. GARNESS ENGINEERING GROUP, Ltd. (Signature of property owner or authorized agent) Permit/Rush Fees: Date of Payment: Receipt Number: 0050 Permit No. Waiver Fees: __* Date of Payment: Receipt Number: Waiver No. OSV[ II (Rev 01/11) GARNESS ENGINEERING GROUP, Ltd CIVIL & ENVIRONMENTAL ENGINEERS August 30, 2016 Municipality of Anchorage Development Service Department On-Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Ref: Proposed Septic System Upgrade for Elmore #2; Block 10, Lot 10 To whom it may concern: The existing 3 bedroom house is served by a private well and septic system. The existing septic system is undocumented and is likely encroaching on groundwater. We are proposing to install a new 1000 gallon septic tank and 5-wide dual trench type drainfield. One test hole was excavated on the property and the drainfield is designed within its 30 foot radius. Comments regarding the design are summarized follows: 1. SOILS: See the attached 2016 logs which show the soil classifications, groundwater monitoring, and the percolation test results. 2. DRAINFIELD DESIGN: See attached design drawing for drainfield specifications. 3. SURFACE WATERS: There are no surface water concerns. 4. TOPOGRAPHY: As can be seen on the attached topography drawing, the average topography around the proposed drainfield is 5-10% with a cutbank at the road that slopes greater than 25% to the west, see attached design drawing and slope waiver request drawing for details. 5. WAIVERS: The proposed septic system is approximately 40 feet away from slopes greater than 25%. We are requesting that your department waiver the required. separation distance from drainfield to slopes greater than 25% from 50 feet down to 35 feet. Justification for granting this waiver are as follows: · What is assumed to be the existing drainfield is approximately 0 feet from slopes >25%. No weeping was noted during our site visit on 8/18/2016. · As can be seen on the profile drawing, a line drawn 2 feet above the top of system at a 25% slope does not intersect with the existing slope. Additionally, we are requesting that your department issue a waiver from the required 3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259 Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www.garnessengineering.com Page 2 of 2 separation distance of 100 feet from drainfield to the well down to 90 feet. Justification for granting this waiver are as follows: · The existing drainfield and tank likely encroaches on the existing well. It is assumed that this encroachment has existed for decades. · The proposed drainfield is downhill from the existing well. If effluent were to overflow, it would not travel towards the wellhead. · Water samples were pulled on 8/11/2016 and the results are summarized as follows: o Nitrate: Non-Detectable o Arsenic: Non-Detectable o Coliform: Negative We are also requesting that your department waiver the requirement for a sand filter. As can be seen on the attached soil log, there is a transition from the GM material to a GW at 6.5 feet. A sieve analysis was taken (see attached) and verified the soil classification of GW. However, over 51% of the soil sample passed the #4 sieve. In short, although the soil was classified as a GW, since 51% passed the ¢4 sieve it seems reasonable to assume that the in-situ soil will function similar to a sand filter. Therefore, we are requesting that your department waiver the requirement for a sand filter. We are unaware of any adverse impacts this installation would have on adjacent wells or septic systems. If you have any questions, please contact us at 337-6179. Thank you for your assistance. /~Si~erely, P.E., M.S. 3701 East Tudor Road, Suite 101 * Anchorage, Alaska 99507-1259 Phone: (907) 337-6179 * Fax: (907) 338-3246 * Website: www, gamessen§ineering,com r /' EAST,145TH AVENUE ~/ ! 1 o' I 100' WELL RADIU~ i . I · " ELMORE #2;/.,/ ~ ELMORE #2;~' '. '. ELMORE #2; "-.. BLOCK 10,..UDT 2~ BLOCK 10, LOT 3 '"-. .?"~...B. LOCK 10..,.LOT 4 ~100' WELL RADIU;.m ELM/ORE #2; ¥' tx ~ '~' / ¢ // k' 't , 00'WELLRA[,,U_S BLO/~K 10, LOT 11 "' ( ;"'- /" I 100' WELL R.~o kD \ -'~ -- / EAST 147TH AVENUE/' "'-- ?" , .s,,x~-,, ~ lOO' WE _L RADlU %~,~/o I ¢ " BLOCK 12, LOT 4 t ELMORE #2; / ~ ¢ ~--- ~",, BLOCK 12, LOT2 // ... ~'~ "-. ""... '"x / / ELMORE #2; " . -.~ . //BLOCK 12, LOT3 t 100'WELL RADIUS I ~'~, GARNESS ENGINEERING GROUP, Ltd d ........ .~.,~!.~ L~.m CIVIL & ENVIRONMENTAL ~. ~.~. ..... g.~, ,~. PREPARED FOR: ] PHONE NUMBER: PAGE NUMBER: BRIAN BRODERICK I ELMORE #2; BLOCK '[0, LOT 10 LK.BJD.d.G. ~',~ ~'~9 ~ · ........ ~PE DP WOR~: DATB: "~.-"~FESS~, k.,.. SITE PLAN 8/30/2018 #AECC884 DESIGN CRITERIA: GEG, Ltd. HAS A 8 PAGE SPECIFICATION ~ LE~q'ER THAT PERTAINS TO THIS DESIGN. TO~ NOTE: THE CONTRACTOR NUMBER OF BEDROOMS: 3 OBTAIN A COPY OF THE LETTER CONTACT SHALL HAVE THE SOUTH & GALLONS PER DAY (GPD): 450 GEG. BY PROCEEDING FORWARD WITH THIS PERCOLATION RATE/S: 7.3 INSTALLATION, THE ENGINEER, WELL DRILLER, WEST LOT LINES, AND ALL PROPOSED APPLICATION RATE: 0.8 CONTRACTOR AND PROPER~¢ OWNER AGREE WELL RADII FLAGGED BY A MINIMUM DRAINFIELD SQ.FT.: 562,5 FT~ THAT THEY HAVE READ THESE REGISTERED LAND SURVEYOR SPECIFICATIONS AND AGREE TO ACCEPT THE PRIOR TO CONSTRUCTION. DRAINFIELD DESIGN: ,' TERMS AND CONDITIONS OUTLINED. MAXIMUM DEPTH: 6FEET , ~ 00 WELL RADIUS ELMORE #2; ~ % ~ Z /' BLOCK 10, LOT 11 i ~ ~%~/~. \ (APPROXIMATE 5 FOOT EL EVATI( ~ - ~,~ ~ ...... ~ _ ~ ..... V APPROXIMATE100'WELL~DIUS~ ~FT~¢ A./ ~ X ................... EAST I'~7TH AVENUE ...... C~ --~TER WAS NOTED IN ~ TO RQAD 1" = 40' GARNESS ENGINEERING GROUP, Ltd'/' BRIAN BRODERIOKI 229-6499 2 OF 3 ~2~ ELMORE ¢2; BLOCK 10, LOT 10 D,J.G. ~ ~PE OF WORK: DATE: '~ SEPTIC SYSTEM DESIGN UPGRADE 8/30/2016 ¢AECC884 1"=10 FEET EXISTING GRADE -5-10% MTCO 25 H LINE 2 FEET ABOVE THE E EFFECTIVE 35 FOOT WAIVER REQUEST EAST 147TH AVENUE GARNESS ENGINEERING GROUP, Ltd IDAT~}30/2016 PROFILE DRAWING FOR SLOPE WAIVER REQUEST #AECC884 ISOIL LOG - PERCOLATION TESTI LEGAL DESCRIPTION: ELMORE ¢¢2; BLOCK 10, LOT 10 PERFORMED FOR' BRIAN BRODERICK DATE' 8/18116 ORG/LOAM GM GW SOILS LOGGED BY: COMMENTS: ITESTHOLE #1 - UPPER BENCH SOIL CLASSIFICATIONS ORG ML CL 0L NH CH OH SC DEPTH TO DATE GROUNDWATER 12 FEET 8/18/16 12 FEET 8/25/2016 SITE PLAN CALE: DATE READING CLOCK NET TIME WATER LEVEL NET DROP TIME (MINUTES) READING (INCHES) 8/19/16 1 1:50 6" 2 2:20 30 1 7/8" 4 1/8" 3 2:20 6" 4 2:50 30 I 7/8" 4 1/8" 5 2:50 6" 6 3:20 30 1 7/8" 4 1/8" PERCOLATION F~ATE 7.27 (HIN./INCH) PERC. HOLE DIA. 6 (INCHES) TEST RUN BETWEEN 4.5 FT. AND 5.5 FT. A FOUR HOUR PRESOAK WAS PERFORHED: YES · NO [] DAVIDGARNESS PERCOLATION TEST PERFORhIED BY: ERIKWIDGER PERCOLATION READINGS ARE WITHIN 1/16 OF INCH. PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PERF(~RME~ IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: 6~¢/t 3 ~j'/~¢ GARNESS ENGINEERING GROUP, Ltd CIVIL & ENVIRONMENTAL ENGINEERS ISOIL LOG - PERCOLATION TESTI LEGAL DESCRIPTION: ELMORE #2: BLOCK 10, LOT 10 PERFORMED FOR: BRIAN BRODERICK DATE: 8/18/16 SOILS LOGGED BY: COMMENTS: ORG/LOAH GM GW ITESTHOLE #1 - LOWER BENCHI SOIL CLASSIFICATIONS 0RG ML CL 0L MH CH OH SC DEPTH TO GROUNDWATER DATE ~2 FEET 8/~ 8/16 12 FEET 8/25/16 SITE PLAN SCALE: CLOCK NET TIME WATER LEVEL NET DROP DATE READING TIME (MINUTES) READING (INCHES) ABSORBED 5 GALLONS IN LESS THAN I MINUTE 2 TIMES PERCOLATION RATE <1 (MIN./rNCH) PERC. HOLE DIA. 6 (INCHES) TEST RUN BETWEEN 7 FT. AND 8 FT, AFOUR HOUR PRESOAK WAS PERFORMED: YES []NO · DAVID GARNESS PERCOLATION TEST PERFORMED BY: ERIKWlDGER PERCOLATION READINGS ARE WITHIN1/16OFINCH. PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PEREORM~D IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: ';~ff ~¢ ]¢ ~