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Home My WebLink AboutHIDDEN HILLS BLK 1 LT 10Onsite File Hidden Hills Block 1 Lot 10 #011-121-35 MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On-Site Water & Wastewater Section Fax: 907-343-7997 Pump Installation Log Well Drilling Permit Number: _______________ Date of Issue: ____-____-____ Parcel Identification Number: ____-____-____ Legal Description Block Lot Property Owner Name & Address: Pump Installation Date: _____-_____-_____ Pump Intake Depth Below Top of Well Casing: __________ feet Pump Manufacturer’s Name: ___________________________ Pump Model: _____________________________________ Pump Size: ____________hp Pitless Adapter Burial Depth: _________ feet Pitless Adapter Manufacturer’s Name: _________________________ Pitless Adapter Installer: ____________________________ Well Disinfected Upon Completion? XX Yes No Method of Disinfection: _____________________________ Comments: Pump Installer Name: __________________________________ Company: ___________________________________________ Mailing Address: ______________________________________ City: ___________________ State: __________Zip: _________ Attention: The pump installer shall provide a pump installation log to On-site within 30 days of pump installation. MUNICIPALITY OF ANCHORAGE On -Site Water & Wastewater Program PO Box 196650 4700 Elmore Road i. Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 �r hftp://www.muni.org/onsite L)eparct�lc-�tt On -Site Wastewater Disposal System Permit Permit Number: OSP241065 Effective Date: 5/1/2024 Work Type: Septic Initial Expiration Date: 5/1/2025 Tax Code Number: 01112135000 Site Legal Address: HIDDEN HILLS BLK 1 LT 10 G:2222 Site Mailing Address: 6301 QUIET CIR, Anchorage Owner: AAFEDT BRENT & ALEXXANDRA M Lot Size in Sq Ft: 10120 Design Engineer: FORGE ENGINEERING Total Bedrooms: 5 This permit is for the construction of: Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy ❑ Private 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. Provide notification by calling (907) 343-7904 (24/7). 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: • A LNO from ROW for the well in the Utility Easement is required prior to IR approval. a dJO eVklfl4 tf r"9 to be Ivy -Ae bo -H -o,,, &7 4k, beA. Re e -Received-By: � s � �t � � -to �orc► Issued By: rif% o� ue- �U 15,o 115 �/z�/Zy Date: Date: Z _ Municipality of Anchorage __,. Urp:rtmenr P.O. Box 196650 ® 4700 Elmore Road Anchoraqe, Alaska 99519-6650 0 (907) 343-7904 Fax (907) 343-7997 http://www.muni.org/Onsite Services ii i On -Site Water and Wastewater Program * x * * VARIANCE/WAIVER REVIEW x Waiver#: OSV241014 COSA#: Permit#:OSP241065 PID#:011-121-35/�� S��(I . f'I o a�o�� • Legal Description: HIDDEN HILLS BLK 1 LT 10 , r4,) k z Engineer: Forge engineering y(d Your request for a waiver of the required 10 feet horizontal separation from the absorption field to the property line has been approved. The approved separation distance is 1.0 foot. In addition, the trenches do not follow the contours but are allowed if installed per engineers design. This waiver approval applies to the proposed absorption field only. Any fixture upgrade to the on- site wastewater disposal system will require all separation distances be met or another approval from this department. ............................................... ■ ............................ 0 ■ i Waiver is Granted: X Waiver is not Granted: Date: � Approved by: Name of Revie **** VARUANCEMAIVERh REVIEW**** MUNICIPALITY OF ANCHORAGE Community Development Department Phone: 907-343-7904 Development Services Division Fax: 907-343-7997 On -Site Water & Wastewater Program ON-SITE SEWERA/VELL`PERMIT APPLICATION Parcel I.D. 011-121-35 Property owner(s) Aafedt Brent & Alexxandra M pay phone Mailing address 2835 Lily St, Anchorage, AK 99517 Site address 6301 Quiet Cir, Anchorage, AK 99502 Legal description (Sub'd., Block & Lot) Hidden Hills Block 1 Lot 10 Legal description (Township, Range & Section) Lot Size 15,120 sq. Ft. Number of Bedrooms 5 APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (N all that apply) Absorption Field r_X� Initial FX] Single Family (SF) (wlwo ADU) Septic Tank FX]Upgrade ❑ :Duplex (D) Holding Tank ❑ Renewal ❑ Multiple Dwellings Privy (SF and/or D) Private Well Water Storage ❑ THIS APPLICATION INCLUDES A'VARIANCE / WAIVER REQUEST FOR: Tank/Absorption trench to property line Distance: 91 / 11 I certify that the above information is correct. I further certify that this is in accordance with applicableMunicipal Codes. (Signature ,of property owner or authorized agent) Permit/Rush Fees: Waiver Fees: Z Date of Payment: Date of Payment: Receipt Number: Receipt Number: Permit No. 05P `7 ' Waiver No. 0--' - Permit App_'-'-:- ,'_:c, Jame 18, 2024 UTE E E R I N G Municipality of Mdlor On-site Water and Wastewater REVIEWED FOR CODE COMPUANCE 0--X241001, Deb tM cken(uss, 0&211, PO BOX 240773 (-o ANCHORAGE. AK 99524 ��((// 522-7773 677-7766 (FAX) FORGECIVIL.COM MOA Development Services, On -Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: Hidden Hills Block 1 Lot 10 — 6301 Quiet Cir Septic system design and waiver requests Dear On -Site Services Engineer: The owner of the above lot intends to build a 5 -bedroom home on the property, so we are submitting this permit application for the construction of a new septic system. The attached site plan identifies the location of the home as well as the existing well, septic location and alternate site. No conflicts exist between this proposed system and any other well or septic system, whether on this lot or adjacent lots. The ground surface on the lot slopes moderately to the east at between 5-10% in general. There are some areas that are steeper but do not approach 25%. Contours are shown on the site plan showing the grade and direction of flow. Stormwater drainage will not impact this septic system. The new bed will be constructed over the lower gravel layer and will be flat. The soils on this lot support a deep -bury shallow bed, as there is very rocky gravel about 10' below grade, as measured from original grade on the high end (toward the center of the lot). The lot slopes down toward the east, where the gravel is about 7.5' below grade along the property line. However, with the limited area and the location of the existing well the system will only fit if the separation distances to the building, lot lines and septic tank are reduced. The lot lines are the boundaries for the ROW in Quiet Circle and Lucy Street. The installation of bed will not cause problems for the ROW, and will not affect any neighboring lots. Currently, the excavation has been open for the construction of the foundation and installation of the septic tank for well over four weeks, and there have been no problems with sloughing of the side walls. The rocky bed with the sand filter does not undermine any structures. The attached profiles show the relative elevations of the building foundation, bed, and septic tank, and show the reduced separation distances. The bed is outside the line of influence of the building foundation and there is only a small portion of the sand below that falls within that. As clean filter sand is solid structurally and typically considered non-compactable (as is larger gravel/sewer rock), this does not adversely affect the foundation. The effluent from the bed will disperse fairly rapidly through the sand and larger gravel below, spreading laterally minimally. It could reach the septic tank before flowing further downward but will not degrade the plastic tank. The primary treatment is the 2' sand filter, and even in fast -draining gravel the effluent is assumed to flow vertically through it. As gravel is mostly incompressible and minimally affected by liquid flow there is little risk of either preventing treatment or undennining the tank with effluent from the sand filter. For all of these reasons we request waivers for 1' to both South and East lot lines for the bed, 3.5' to the building foundation, and 2' to the septic tank. Code limits beds to being constructed on slopes less than 10%. In this case, we have verified that the gravel layer that we are installing on is flat below the surface of the ground, and we have test hole information down more than 12' further below with no impermeable layers or groundwater. The bed will be built flat, and we have evidence of much more than sufficient vertical separation even taking into account the approximate 3-4' difference in surface grade from one side to the other. We request a waiver to allow the bed to be built as a deep burial bed on a slope greater than 10%. The bed, as it fits, would be wider than the standard 15'.1 have discussed this with the contractor, and they will be able to construct the bed from both sides of the excavation to a width of 10' without tracking onto the bed. They are able to construct the middle portion, whatever they're not able to reach with the equipment, using workers with shovels. We therefore also request approval to construct the bed as a 25' wide bed, the length changing depending on the well radius. We recognize that this is a non-standard installation; however, we are able to make the design work with these basic waivers. The homeowner understands that in the case of drastic failure it may not be easy to excavate or repair the bed after the home and driveway are built, and in that case, they will be looking at using advanced treatment with the alternate site. Wells on this and adjacent lots are shown. The new system will be a minimum of 100' from all wells and surface water. The alternate site is located more than 16' away. Please refer to the attached test hole log, plan and profile pages for the septic design. If this design is followed, there will be no adverse impacts to adjacent properties. Sincerely, Benjamin Schiller, PE HIDDEN HILLS, BLOCK 1 LOT 10 Onsite Water and Wastewater REVIEWED FOR CODE COfVPLJANI.E OSX241001, Deb VWckenfuss, 06/2 14 LOTS L_ `FG� �( I I ---- -------------------------------- EXISTING WELL 10' UTILITY EASEMENT t l tc CARPORT 1 1 ALTERNATE SITE: - CAT Ill ADVANCED TREATMENT I w/ PUMP VAULT - 20'x5'x4'ED I LOT 11 LOT 14 I 5-BDRM HOME _ 1 f I APPROX. LOCATION OF EXISTING BM TOP MT' SEEPAGE PIT. TO BE LOCATED, FOUNDATION 100.0 EXCAVATED, AND BACKFILLED WITH ACCEPTING SOIL (NATIVE cd' EXISTING. GRADE 94.2 SOIL FROM EXCAVATION) OR MOA TH#2 Q' CO I _- SAND - C0- . C0 CO 55.6 I FCO I 100. TH#1 OG EL 97.7 1coCo CO CO ' T MT -------------------------------------------- 1500-GAL SEPTIC TANK W/ 20"MANWAY 25.0 MIN 10' TO FOUNDATION EXISTING GRADE 94.7 QUIET CII 1072__ SF_ ABSORPTION BED, MAX SEPARATION BETWEEN LEGS 5', MAX SEPARATION TO EDGE OF BED 3' - � — MT'S TO BE WITHIN V OF CORNERS ENG IH E``E0.I NG kk OF At�`ptt�l .rte • " ,� i*'4sTM^ • *��i SEPTIC PLAN �• �. + . Benjai Schiller .:� 0 20 40 2592 islF .,• 5113!24 ,.•�� , FEET tli`F�pROFESSIO0 1"=20' - DEPTH OF EXCAVATION TO GRAVEL LAYER: 7.5' i LEGEND CO - CLEANOUT 2CO - DOUBLE CLEANOUT FCO - FOUNDATION CLEANOUT FS - FLOW SPLITTER VALVE MH - MANHOLE MT - MONITORING TUBE SV - SEPTIC VENT TH - TEST HOLE 7' Cil Or�-site ORC� tewterHIDDEN HILLS, BLOCK 1 LOT 10 REWEVVEDONPUAl OSX241001, Deb Kbckenftas, 06 DESIGN FACTORS: SYSTEM REQUIREMENTS: C-o'-gj 750 GPD PEAK FLOW SHALLOW BED SYSTEM W/ SAND FILTER PERK RATE: <1 MIN/IN 1500 -GAL SEPTIC TANK APPLICATION RATE: 0.7 GPD/SF 750 GPD / 0.7 GPD/SF = 1071 SF BED REQUIRED (1072 SF SPECIFIED) WIDTH: 25', LENGTH CHANGES ALONG WELL RADIUS BOTTOM OF BED: 8' BELOW OG(MEASURED FROM THE HIGHEST OG ELEVATION) BOTTOM OF SAND: 10' BELOW OG (TOP OF GRAVEL LAYER) FLOW LINE ELEVATION: 7.5' BELOW OG NOTE: GRADE HAS BEEN CUT DOWN SIGNIFICANTLY FOR FOUNDATION CONSTRUCTION. MAX DEPTH NEAR PROPERTLY LINES IS 7.5' OG AT WEST END OF FIELD 100.0 PROVIDE ADDITIONAL FILL TO (AT TH#11) ACCOUNT FOR SETTLEMENT -4"' PERFORATED PVC (HOLES DOWN) FLOW LINE 92.5 BOT ROCK 92.0 BOT SAND 90.0 01 A 'k •A *F49 M .......... ....... Benja in Schiller CE 12592 6/13124 HIDDEN HILLS, BLOCK 1 LOT 10 E N Gk"-� I�-- FLOW LINE 89.9 BOT ROCK 89.4 BOT SAND 87.4 On-site Water and Wastewater REVIEWED FOR CODE COlVPUA OSX241001, Deb Mckedun R EXISTING GRADE @ TH1 97.7 FLOW LINE @ TANK 90.0 2' BED SEPARATION PROFILES SCALE 1" = 2' 0 2 4 FEET E OF P'�q��1 � :f 1 *:Q TH ••tt • • • • .. • ' • Benja 'n Schiller ' CE 12592�� il'j • • , 6113{24 •(� lill:� pROFESS10Na��., �� SOILS LOG AND PERCOLATION TEST E N G I N E E R I N G LEGAL DESCRIPTION: HIDDEN HILLS BLOCK I LOT 10 PERFORMED FOR: BRYAN AAFEDT DATE: 1121121 PARCEL ID#: 011-121-35 DEPTHTEST HOLE 1 ((eel) G 1 1 1 1 1 1 mKol 3 aPERC TEST LOCATION SM (SILTY SAND) SP (SAND / COBBLES) NO WAS WATER ENCOUNTERED'? - IF YES @ WHAT DEPTH? DRY DEPTH TO WATER AFTER MONITORING 1/28/21 DATE OF MONITORING DATE READING START TIME NET TIME DEPTH To WATER NET DROP (MINUTES) (INCHES) INCHES) 1/21/21 1 1:02 9:21 10 716 6 16 2 1:12 10:00 1 0 516 416 3H1:23 10:00 1 16 416 3 16435 10:00 116 4 a 3 1°-6 5 1:47 10:00 1 4 3 16 16 16 6 1:50 10:00 1-1 3 is 2 16 PERCOLATION RATE: 3.4 (MIN/INCH) COMMENTS: USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED SITE PLAN TECHNICIAN: L. TIDWELL DEPTH (feet) 1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 1 1 2 2I.J E E N G i N E E g i N G Co 70f I 1. SOILS LOG AND PERCOLATION TEST LEGAL DESCRIPTION: HIDDEN HILLS BLOCK I LOT 10 PERFORMED FOR: RED DOG MASONRY DATE: 5/6/2024 PARCEL ID#: 011-121-35 TEST HOLE LOT HEAVILY GRADED. RELATIVE ELEVATIONS CONFIRMED WITH LASER SM (SILT WITH SAND) aPERC TEST LOCATION GP (POORLY -GRADED GRAVEL W/ SAND) NO WAS WATER ENCOUNTERED? IF YES �( WHAT DEPTH? NONE DEPTH TO WATER AFTER MONITORING 5/13/202Z' DATE OF MONITORING DATE READING START TIME NET TIME (MINUTES) DEPTH To WATER NET DROP INCHES) (INCHES) 5/6 1 3:00 0:07 1 0 7 0 616 2 3:00 0:09 1 0 7 0 616 3 3:00 0:10 1 16 716 616 4 3:01 0:13 1 16 7 16 6 16 5 3:01 0:14 1 16 716 616 6 3:01 0:16 1 16 716 616 PERCOLATION RATE: 0.04 (MINANCH) SITE PLAN TECHNICIAN: J.OPHEIM COMMENTS: USCS SOIL CLASSIFICATION OF GP DETERMINED BY LABORATORY ANALYSIS oGRE"- R ANCHORAGE AREA BOF"'JGH Department of Environmental Quality 3330 C Street Anchorage, Alaska 99503 INSPECTION REPORT ON-SITE SEWAGE DISPOSAL SYSTEM LOCATION SEPTIC TANK: DISTANCE / FROM WELL INSIDE LENGTH MANUFACTURER ('~-Jl')--f;~ ..... ¢: I)~' MATERIAL ~ -- - '-- INSIDE WIDTH ..... LIQUID DEPTH - - NUMBER OF COMPARTMENTS LIQUID CAPACITY i~}C) O GALLONS. SEEPAGE PIT: NUMBER OF PITS I DIAMETER OR WIDTH i:z) '~ / --- ~ LENGTH t~, DEPTH l"~:~ ' LINING MATERIAL J._--0~%l CRIB SIZE: DIAME-TER____DEPTH ~_'/ DISTANCE FROM: WELL BUILDING FOUNDATION ~C~-~ / NEAREST LOT LINE '~-,~]) / TOTAL EFFECTIVE .... ABSORPTION AREA (WALL AREA) '~ [ SQ. FT. ADDITIONAL ABSORPTION TYPE (:P BUILDING FOUNDATION C ESSPOO L APPROVED _CONSTRUCTION NEAREST LOT LINE OTHER SOURCES DISAPPROVED NEAREST SEWER LINE REMARKS DEPTH DISTANCE FROM: SEPTIC SEEPAGE TANK. SYSTEM INSTALLED BY: =b PIPE MATERIAL: LOT SLOPE: Form No, EQ-031 DIAGRAM OF SYSTEM GREATER ANCHORAGE AREA BOROUGH DEPARTMENT OF ENVIRONMENTAL (~UAI. ITY 3330 "C" STREET ANCHORAGE, ALASI'(A 99503 TELEPHONE 274-4§61 PERMIT NO, SEWAGE DISPOSAL SYSTEM --- APPLICATION AND PERMIT FINANCED THROUGH TO BE INSTALLED SY'~¢ O6¢ )/~ ~ _. NOTE: THI¢ PERMIT IS ~40'f VAI,,ID ~¢ITHOUT SOlE TEST COMPI_ETION DATE ANTICIPATED ~/~ / WELt. TO SEPTIC TANK (//~ j SEEPAGE PIT /'~00 WATER MA,N TO ~EPTIC TANK_ /'0 ., SEERAGE P~T / :~ 'rG RIVER. LAKE, STREAM TYPE CONFORM TO BOROUGH REGULATIONS REGARDING INSTALLATION, CERTIFY 'rFIAT I AM FAMILIAR WFFH THE REQUIREMENTS OF GREATER-~NCHORAGE A~ BOROUGH ORDINANCE DESCRIBED SYfiTEM I$ IN ACCORDANCE WITH $AID CODE,,./ . / ~/, ¢"%/h/- /. / ~ THAT THE ASOVE BILL SHEFFIELD, GOVERNOR DEPT. OF ENVIRONMENTAL CONSERVATION Telephone: (.o07) 274-2533 Address: 437 E. Street Suite 200 Anchorage, AK 99501 October 5, 1983 Mr. Leroy C. Reid, P.E. Alaska Environmental Control Services, Inc. 1200 W. 33rd Avenue, Suite B Anchorage, Alaska 99503 Dear Mr. Reid: MUNICDIEPALITy OF Ai~.C . -PT O[ ~ ' FIORAo.c ENV Ro~,,,,i~,.' ,.'Z/.LTH ~: "~ 'zr',!TAL pROTECFiON RECEIVED Subject: Lot 10, Block 1, Hidden Hills Subdivision The Department has reviewed the request for a waiver of the 150 feet well to septic separation distance on the subject property and cannot grant the waiver because the small Lot sizes of Lots 8, 9, 10 and 11 increases the risks of contamination for these wells which have no impervious layer between the source of contamination and the water table. Sincerely, Environmental Engineer BEE/msm cc: Robbi Robinson, MOA "One test is ~vorth a thousand opinion, s" ~62~ TUDOR ROADi ANCHORAGE, ALASKA ~g~O7 · TELEPHONE 333-8472 Performed For '3--t~ ~~ b~ Date Performed~-¢-7~ Legal ~escrintion: Lot./~__Block "~ Subdivision This Form Re~orts Soils LoQ ~_ Percolation Test nenth Feet Soil Characteristics 1 5 7-- in /s ' ,I ~as 6round ~ater Encountered? I~ Yes, At what Depth? Percolation Rate Minute Proposed Installation: SeeDaae Pit Drain Field Den. th of Inlet DePth To Bottom Of Pit Or Trench Test Performed By_ :~ m~:K Data Certified Net Drop Readin~ Date Gross Time Net Time Depth to 1 H20