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Home My WebLink AboutMOUNTAIN VALLEY ESTATES #1 BLK 5 LT 9Mountain Valley Est. #1 Block 5 Lot 9 #050 - 661 - 12 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 http://www.muni.org/onsite On -Site Wastewater Disposal System Permit Permit Number: OSP211416 Work Type: Septic Renewal Effective Date: Expiration Date: Tax Code Number: 05066112000 Site Legal Address: MOUNTAIN VALLEY ESTATES #1 BILK 5 LT 9 G:0758 Site Mailing Address: 3750 BIRDSONG DR, Eagle River Owner: HAYNES CLAUDINE & Design Engineer: FORGE ENGINEERING This permit is for the construction of: Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy 9/27/2021 9/27/2022 Lot Size in Sq Ft: 78465 Total Bedrooms: 3 ❑ 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 i. Special Provisions: 1. The Engineer isrequired to do an additional percolation test prior to construction of theseptic field. Please submit stamped andsigned results with the As -built Inspection Report. If the results require a design change, constructionof the system will stop pending On -Site review and approval. 2. The cover per the design is to be in place prior to Inspection Report approval. 727,3 C hang e. I o co- atn -to allow 57-o v q,rotVr'� S l ocv, Veronica Pope 2021.09.27 Received By:*'kl� 15:38:11 -08'00' Issued By: Date: Date: 27 Z MUHMPA UY 7 OF HCHOR �\ G Community Development Department Phone: 907-343-7904 Development Services Division Fax: 907-343-7997 On -Site Water & Wastewater Program ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 050-661-12 Property owner(s) Claudine Haynes & Carolyn Hackett Day phone 232-0128 Mailing address 205 E. Dimond Blvd., #275 Anchorage, AK 99515 Site address 3750 Birdsong Drive Eagle River, AK Legal description (Sub'd., Block & Lot) Mountain Valley Estates #1, Block 5, Lot 9 Legal description (Township, Range & Section) Lot Size 78,465 Sq. Ft. Number of Bedrooms Three (3) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field ® Initial ❑ Single Family (SF) ❑X Septic Tank ❑X Upgrade ❑X (w/wo AD U) Holding Tank ❑ Renewal FX]Duplex (D) ❑ Privy ❑ Multiple Dwellings ❑ (SF and/or D) Private Well ❑ Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (5lgnature of property owner or authorized agent) Permit/Rush Fees: 1 / q.6- Waiver Fees: Date of Payment: Receipt Number: Permit No. 0--/p 2 I y h Permit App_':- : :'-.,'c Date of Payment: Receipt Number: Waiver No. C o -�Z ENGIN E E R I NG PO BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) August 12, 2021 MOA Development Services Dept, On -Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: Mountain Valley Estates 41, Block 5, Lot 9 — 3750 Birdsong Drive Septic Permit Change Order Dear On -Site Services Engineer: We originally submitted an application for a trench extension to upgrade the existing system to a 3 -bedroom septic, but found groundwater at a shallower depth than anticipated. We are now proposing a whole new trench in a new location with a 1'250 -gallon lift station. The ground surface on the lot is at or greater than 25% in the area of the proposed absorption trench. Attached is a slope cross section showing the worst-case effluent travel for steep slope encroachment justification. Slopes greater than 46% are found within 100' of the absorption trenches, but no daylighting of effluent is probable. The underlying soils in the area absorb water at rates between 4 and 5 minutes per inch. No migration of effluent is expected other than downward. The proposed design meets all MOA steep slope requirements as stated in AMC 15.65.210.13.4. Ground surface contours are shown on the site plan indicating the grade and direction of flow. Storm water drainage will not affect this septic system. The trench will be constructed parallel to the slope as much as possible. Wells on this and adjacent lots are shown. The new system will be a minimum of 100' from all wells and surface water, and more than 5' away from the septic tank. Please refer to the attached test hole log and plan and profile sheets for the septic design. If this design is followed, there will be no adverse impacts to adjacent properties. Sincerely, Michael E. Anderson, PE a MOUNTAIN VALLEY ESTATES SUB #1, BLOCK 5 LOT 9 71 I / EXISTING WEIL I I \ I , \ LOT 8 ALTERNATE SITE: CAT I I SYSTEM I I ' 15' LONG x 5'\WIDE X 0.5' E�FECTIVE �� LIMITS OF FILL I I 1 DEPTH ABSORPTION'TREN � H, APP \ I �TE 6.6 \ 76'LONG x5' WIDE x 0.5� s ( l \ \ \1 EFFECTIVE DEPTH \ \ \ 1ABSOgPTIO I TRENCH LOT 9-/ EXCXVATMATERIAL F�OM E)ISTING T 2 I TRENH & REBUILD w/ MOP SAND r / LOT\ 14 I , ( I I i l� 1 0 MT \ ` I EXISTING TANK \TO'RE�MAIN IC ... I� // % / SERVICE. 1 1 NOTE: DO, NOT 1 ' I EXCEED 3' TOTAL 1 I 2-BDRM"HOME 1 I I DEPTH FROM 1 ` j/ / IIEXISTING INDOOR I HIGHEST ;ORIGINAL I ( I i' GRI<JDER PUMP I ( GRADE w/ TRENCH I A� I II } } I GARAGE Irv/ I I I BATYROOMI EXISTING WELL�� I LI OT 13 I I I I r LQ'r i WELL 416 V- EX��NIERING \I t OTE:i NO SURFACE WATER WITHIN 100' OF THE PROPOSED SEPTIC LEGEND SYSTEM. CO - CLEANOUT ALL WELLS ON SURROUNDING LOTS WITH IMPACTS TO THIS 2CO - DOUBLE CLEANOUT PROPERTY ARE SHOWN. NO CONFLICTS WITH WELLS OR SEPTIC FCO - FOUNDATION CLEANOUT SYSTEMS. FS - FLOW SPLITTER VALVE 0 50 100 MH - MANHOLE FEET MT - MONITORING TUBE SV - SEPTIC VENT 1 "=50' TH - TEST HOLE MOUNTAIN VALLEY ESTATES SUB #1, BLOCK 5 LOT 9 DESIGN FACTORS: 450 GPD PEAK FLOW PERK RATE: 4.8 MIN/IN APPLICATION RATE: 1.2 GPD/SF SYSTEM REQUIREMENTS: SHALLOW TRENCH SYSTEM NEW 1,250 GALLON STEP TANK 450 GPD / 1.2 GPD/SF /5' WIDE * 1.0 RED. FACTOR = 75 LF TRENCH REQUIRED (75 LF SPECIFIED) BOTTOM OF TRENCH: 3.0' BELOW GRADE @ HIGHEST POINT FLOW LINE ELEVATION: 2'6" BELOW GRADE @ HIGHEST POINT TOP OF TRENCH: 6" ABOVE GRADE @ HIGHEST POINT 2:1 1 APPLY JUTE MESH OR EQUIVALENT & VEGETATE FILL SLOPE FOR STABILIZATION �! ir0.1 51 2" INSULATION 2' 1.25" PVC w/30 - is" HOLES SPACED EVENLY (HOLES DOWN) DRAINFIELD ROCK TYPICAL TRENCH SECTION (NO SCALE) NOTES: 1. GRADE AREA OVER TRENCH TO DRAIN AWAY 2. PROVIDE 3' OF COVER OVER TRENCHES AND 4' OVER SEPTIC TANK, OR 2' WITH 2" OF INSULATION 3. CHECK GROUNDWATER AT TIME OF CONSTRUCTION. IF LEVEL IS HIGHER THAN PREVIOUSLY OBSERVED, CALL ENGINEER IMMEDIATELY > AGE E N G 1 N E E R I N G 49th •�°.� MICHAEL E. ANDERSON f a No. CE -4381 2 0 ; *-4ep:embe, 14,' 0?1.1%�- 0 pROFES51Cto- / 'w RA z W d = w M � ., rn, a Z �� l d e v � r O: _. : _.... ...... .. ._.. ._...___-._..._ �. .:Eb ire 00 L �^ Cp U 0 m _ w - w tCD _ U o _ W LO ��2.. _. - Ln VJ W f— - - C) M LijN — Q W II CD W o1 C9 U) ----- N Jz o - Q oaLO z, a .0 w cr IL z « L 75w r w I 0 i O LCA O. _z , O LO ..�. — _LO CD z DEPTH (feet) 1 - SOILS LOG AND PERCOLATION TEST LEGAL DESCRIPTION: MOUNTAIN VALLEY ESTATES #I, BLOCK 5, LOT 9 PERFORMED FOR: .JOHN STEWART DATE: 7/7/21 PROJECT No.: PARCELID#: 050-661-12 TECHNICIAN: J. MILLETTE TEST HOLE 1 RE60- 2 ..r 3 4 SILTY GRAVEL W SAND 5 GM 6 7 8 j 10 11 12 13 14 15 16 17 1& 1 COMMENTS: SLOPE WAS GROUND WATER ENCOUNTERED2 YES IF YES @ WHAT DEPTH? 9.5' L DEPTH OF WATER AFTER MONITORING: 9.5 0 DATE OF MONITORING: 7/15/21 P E SITE PLAN SEE SITE PLAN GROSS TIME NET TIME DEPTH TO NET DROP DATE READING WATER (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: PERCOLATION RATE: (MIN/INCH) PERC. HOLE DIA. (INCHES) TEST RUN BETWEEN: FT. and FT. DEPTH (feet) 1- 2- 3- 4- 5- 6- 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SOILS LOG AND PERCOLATION TEST E N G I N E E R I N G LEGAL DESCRIPTION: MOUNTAIN VALLEY ESTATES #I, BLOCK 5, LOT 9 PERFORMED FOR: JOHN STEWART DATE: 7/7/21 PROJECT No.: PARCELID#: 050-661-12 TECHNICIAN: J. MILLETTE TEST HOLE 2 •C SILTY GRAVEL W SAND GM SLOPE 3 .' 6- : a I WAS GROUND WATER ENCOUNTERED? YES COMMENTS: SITE PLAN SEE SITE PLAN IF YES tJ WHAT DEPTH? 9.5 DEPTH OF WATER AFTER MONITORING: 9.5' L 0 DATE OF MONITORING: 7/15/21 P GROSS TIME NET TIME DEPTH TO NET DROP DATE READING (MINUTES) (MINUTES) WATER (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: PERCOLATION RATE: (MIN/INCH) PERC. HOLE DIA. (INCHES) TEST RUN BETWEEN: FT. and FT. 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 http://www.muni.org/onsite On -Site Wastewater Disposal System Permit Permit Number: OSP201321 Work Type: Septic Renewal Effective Date: Expiration Date: Tax Code Number: 05066112000 Site Legal Address: MOUNTAIN VALLEY ESTATES #1 BLK 5 LT 9 G:0758 Site Mailing Address: 3748 BIRDSONG DR, APT, Eagle River Owner: HAYNES CLAUDINE & Design Engineer: FORGE ENGINEERING This permit is for the construction of: Q Disposal Field Septic Tank Holding Tank Privy l»enr oIs, llepartment 8/25/2020 8/25/2021 Lot Size in Sq Ft: 78465 Total Bedrooms: 3 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: CO#1 moved the grinder pump outside the well radius. Received By: Date: Issued By: Date g2.6Z0 8/26/20 Community Development Department Phone: 907-343-7904 Development Services Division Fax: 907-343-7997 On -Site Water & Wastewater Program ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 050-661-12 Property owner(s) Claudine Haynes & Carolyn Hackett Day phone 232-0128 Mailinq address 205 E. Dimond Blvd., #275 Anchorage, AK 99515 Site address 3750 Birdsong Drive Eagle River, AK Legal description (Sub'd., Block & Lot) Mountain Valley Estates #1, Block 5, Lot 9 Legal description (Township, Range & Section) Lot Size 78,465 Sq. Ft. Number of Bedrooms Three (3) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field ❑X Initial ❑ Single Family (SF) ❑X (w/wo ADU) Septic Tank ElUpgrade FR Duplex ❑ (D) Holding Tank ElRenewal ❑X Multiple Dwellings ❑ Privy ❑ (SF and/or D) Private Well ❑ Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit/Rush Fees: 4 10 8. q 5 Date of Payment: a! 181.2 0.2, 0 Receipt Number: 09 2 I % )�N Permit No. 0,5P201 3 2 1 Permit App_:- : . -..:c Waiver Fees: Date of Payment: Receipt Number: Waiver No. PO BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) August 14, 2020 MOA Development Services Department On-Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 Subject: Mountain Valley Estates #1, Block 5, Lot 9 – NHN S. Birchwood Loop Septic System Design – Permit Renewal – Permit No. OSP191259 Dear On-Site Services Engineer: The Septic system upgrade permit for this lot was issued on July 8, 2019. It has now expired. All aspects of the original design remain as submitted and approved. No revisions to the surrounding lots have occurred. We request the permit be renewed for the upgrade of the septic system on the lot to serve a three-bedroom home. Please refer to the attached test hole log and plan and profile sheets for the septic design. If this design is followed, there will be no adverse impacts to adjacent properties. Sincerely, Michael E. Anderson, PE 8/14/20 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP201321, Deb Wockenfuss, 08/25/20 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 http://www.muni.org/onsits On -Site Wastewater Disposal System Permit Permit Number: OSP191259 Work Type: Septic Upgrade Tax Code Number: 05066112000 Effective Date Expiration Date: Site Legal Address: MOUNTAIN VALLEY ESTATES #1 BLK 5 LT 9 G:0758 Site Mailing Address: 3748 BIRDSONG DR, APT, Eagle River Owner: HAYNES CLAUDINE & Design Engineer: FORGE ENGINEERING This permit is for the construction of: 0 Disposal Field ❑ Septic Tank ❑ Holding Tank ❑ Privy `�--r.a r.. c. 1)e pa rtrneat 7/8/2019 7/7/2020 Lot Size in Sq Ft: 78465 Total Bedrooms: 3 ❑ 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 Received By: r1lJ Date: Lq L Issued By: Date: % % MUNICIPALITY OF ANCHORAGE Community Development Department Phone: 907-343-7904 Development Services Division Fax: 907-343-7997 On -Site Water & Wastewater Program ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 050-661-12 Property owner(s) Claudine Haynes & Carolyn Hackett Day phone 232-0128 Mailing address 205 E. Dimond Blvd., #275 Anchorage, AK 99515 Site address 3750 Birdsong Drive Eagle River, AK Legal description (Sub'd., Block & Lot) Mountain Valley Estates #1, Block 5, Lot 9 Legal description (Township, Range & Section) Lot Size 78,465 Sq. Ft. Number of Bedrooms Three (3) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field ❑X Initial ❑ Single Family (SF) ❑X (w/wo ADU) Septic Tank ElUpgrade NDuplex ❑ (D) Holding Tank F-1Renewal ❑ Multiple Dwellings ❑ Privy ❑ (SF and/or D) Private Well ❑ Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit/Rush Fees: t'5gsoo Waiver Fees: Date of Payment: (0/2,501 Ll Date of Payment: Receipt Number: 5 LQ �t�/ Receipt Number: p Permit No. 0S IOI l I o� S� Waiver No. Am Permit App_'-'-:- .. -,:crID 14 VL PO BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) June 25, 2019 MOA Development Services Dept, On-Site Water & Wastewater Program 4700 Elmore Rd Anchorage, AK 99507 Subject: Mountain Valley Estates #1, Block 5, Lot 9 – NHN S. Birchwood Loop Septic System Design Dear On-Site Services Engineer: The owner of the above lot intends to upgrade the current home on the lot to three bedrooms. We are submitting this permit application for the extension of the existing absorption trench to accommodate three bedrooms. The existing septic tank, placed in 2016 is sufficiently sized for the upgrade. The attached site plan identifies the location of the home and existing well, septic location and alternate site. No conflicts exist between this proposed system and any other well or septic system on this lot or adjacent lots. The ground surface on the lot is at or greater than 25% in the area of the proposed absorption trenches. The trench is designed to comply with all requirements of the steep slope provision of the ordinance in that the distribution line if 4.5’ below the surface and natural vegetation down slope will not be disturbed. Slopes greater than 46% are found within 100’ of the absorption trenches, but no daylighting of effluent is probable. The Underlying soils in the area absorb water at rates between 4 and 5 minutes per inch. No migration of effluent is expected other than downward. Ground surface contours are shown on the site plan indicating the grade and direction of flow. Storm water drainage will not affect this septic system. The extension to the existing trench will be constructed parallel to the slope as much as possible. Wells on this and adjacent lots are shown. The new system will be a minimum of 100’ from all wells and surface water, and more than 5’ away from the septic tank. Please refer to the attached test hole log and plan and profile sheets for the septic design. If this design is followed, there will be no adverse impacts to adjacent properties. Sincerely, Michael E. Anderson, PE 6/25/19 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP191259, Rebecca Carroll, 07/08/19 Ort- ' e� er Wastewater MOUNTAIN VALLEY ESTATES #1, BLOCK 5�FbR9DECOMPLIAN OSP201321, Deb Mckenfuss, 0812 I C O�II I I / LOT 8 \ \ 11 \ EX STING WELL TRI I I EXTEND EX',STING EN�H 13' \ I I I ► LONG x 5' WIbE x 4' FFECT�VE \ I J I D PTH. !RrMOV EXISTNG CLEACLIT A D CONECT O \ ► 1 I I PIS\BUTI!D\LINE\co I I I I 1 �T• / OT -/ TH I XIS ING 2 'LO G 5'IDE I 1 ATERNATE ITE ) %4' E FEC IVE EP H x I LOT, 14 I ' I I I I r ►. I ABS R 1 N/RE CH I I► E INTI G/��,250 ALL0N / S PTI TANK / -BDRMIHOME � 1 L � � \ . ":':••:••• � � � � I A I A ION I w/GR E PTP 1FC0 I I I I I ) I1 G�ARAG� �v/ E BEbR00 A.Drl _ /: , ►I I EX IN W�LL \ / \ \ 1 ► I I ►,� n I \ � I• I I LOT , , ► J �� ,� I P L h 10 I I I I( I Q I XITI WELL �� I CHGINCFPIHG I IJOTE. OF gpe�0® NO SURFACE WATER WITHIN 100' OF THE PROPOSED SEPTIC .CE..........._C Q� A SYSTEM. `�• 49th •••';' �a ALL WELLS ON SURROUNDING LOTS WITH IMPACTS TO THIS ... .n.....a .C•� PROPERTY ARE SHOWN. NO CONFLICTS WITH WELLS OR SEPTIC SYSTEMS. T'; h11CHAEL E. ANDERSON 49m NO. CE -4381 ; _•® 0 50 100 A r�F'• . er25120 •,.••`<�:p® FEET 1"-50' LEGEND CO - CLEANOUT 2CO - DOUBLE CLEANOUT FCO - FOUNDATION CLEANO FS - FLOW SPLITTERVALVE MH - MANHOLE MT - MONITORING TUBE SV - SEPTIC VENT TH - TEST HOLE MOUNTAIN VALLEY ESTATES #1, BLOCK 5, LOT 9 DESIGN FACTORS: SYSTEM REQUIREMENTS: 450 GPD PEAK FLOW PERK RATE: 4.8 MIN/IN APPLICATION RATE: 1.2 GPD/SF 5' WIDE TRENCH SYSTEM EXISTING 1,250-GALLON SEPTIC TANK EXISTING 25' LONG TRENCH TYPICAL TRENCH SECTION (NO SCALE) 4" PERFORATED PVC (HOLES DOWN) DRAINFIELD ROCK 5' 6" 6" 4' 4' NOTES: 1. GRADE AREA OVER TRENCH TO DRAIN AWAY 2. PROVIDE 3' OF COVER OVER TRENCHES AND 4' OVER SEPTIC TANK, OR 2' WITH 2" OF INSULATION 3. CHECK GROUNDWATER AT TIME OF CONSTRUCTION. IF LEVEL IS HIGHER THAN PREVIOUSLY OBSERVED, CALL ENGINEER IMMEDIATELY BOTTOM OF TRENCH: 8.5' BELOW GRADE FLOW LINE ELEVATION: 4.5' BELOW GRADE TOP OF TRENCH: 0.5' ABOVE GRADE 450 GPD / 1.2 GPD/SF /5' WIDE * .5 RED. FACTOR = 37.5 LF TRENCH REQUIRED (38 LF SPECIFIED) 6/25/19 EXTEND EXISTING TRENCH 13' FOR A TOTAL LENGTH OF 38'. Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP191259, Rebecca Carroll, 07/08/19 LEGAL DESCRIPTION: PERFORMED FOR: DATE: PARCEL ID#:Professional Engineers Stamp: SOILS LOG - PERCOLATION TEST TECHNICIAN: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DEPTH (feet) PROJECT No.: TEST HOLE 1 SLOPE SLOPE SITE PLAN DATE READING GROSS TIME (minutes) NET TIME (minutes) DEPTH to WATER NET DROP TEST HOLE PRESOAKED PRIOR TO TESTING: PERC. HOLE DIA. (INCHES)PERCOLATION RATE: (MIN/INCH) TEST RUN BETWEEN: FT. and FT. COMMENTS: TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: (inches)(inches) OB/OG 2%2% Mountain Valley Estates #1, Block 5, Lot 9 Mike McGough 5/16/16 W. Roberts Silty Gravel with Sand BOH @ 16' Development Services Department 4700 Bragaw Street Anchorage, AK 99519-6650 Municipality of Anchorage DATE OF MONITORING: WAS GROUND WATER ENCOUNTERED? DEPTH OF WATER AFTER MONITORING: IF YES @ WHAT DEPTH? Yes 14' 5/23/16 5/16 11:13 10:43 10:42 10:12 3 4 2 1 30 30 6.38" 0.75" 7.13" 7.00" 0.75" 4.8 4.0 5.0 6" Test Hole Pre Soaked Prior to Test. 6/6/2016 11:15 11:45 5 6 30 0.75" 7.00" GM See Site Plan 6.25" 6.25" 14' 6-26-19 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP191259, Rebecca Carroll, 07/08/19 Permit Number: Tax Code Number: Work Type: On-Site Water & Wastewater System Permit OSP161151 05066112000 WellSeptic MUNICIPALITY OF ANCHORAGE Development Services Departm.ent On-Site Water & Wastewater Program 4700 EImore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Initial Permit Effective Dates: June 27, 2016 to June 27, 2017 Design Engineer: ANDERSON ENGINEERING Subdivision: MOUNTAIN VALLEY ESTATES #1 Site Legal Address: MOUNTAIN VALLEY ESTATES #1 BLK 5 LT 9 G:0758 Owner/Address: NAUMANN ANNE C & TERRY R 718 W 1490 NORTH CIR WASHINGTON UT 847800000 ml'tlnent Site Mailing Address: 3750 BIRDSONG DR, Eagle River Lot Size in Sq Ft: 78465 Total Bedrooms: 2 This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank N .Privy Y Private Well N Water Storage All construction must 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 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. Date: _ Municipality of Anchorage _Development Services Division On -Site Water and Wastewater Program �i�enr �o i Deparrmeut * * * * VARIANCE/WAIVER REVIEW * * * * Waiver#: OSV161065 COSA#: _ Permit#: OSP161151 PID#: 050-661-12 Legal Description: Mountain Valley Estates #1 Block 5 Lot 9 Engineer: Anderson Engineering Applicant: Terry and Anne Naumann The following waiver requests are approved. 1. Zero (0) feet between the drainfield and a 25% or greater slope. This waiver approval applies to the proposed drainfield 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 non -objection have been received from the owner(s) of the affected adjacent property. X Adjacent properties are not affected by this waiver. ............................................................................... Waiver is Granted: X Waiver is not Granted: Date: Approved by: ................................... .: me of R::l::::................� MUNICIPALITY OF ANCHORAGE Community Development Department Development Services Division On-Site Water & Wastewater Program Phone: 907-343-7904 Fax: 907-343-7997 ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 050-661-12 Property owner(s) Terry and Anne Naumann Mailing address 718 West 1490 North Circle Day phone 694-2141 Site address Washington, UT 84780 Legal description (Sub'd., Block & Lot) Legal description (Township, Range & Section) Mountain Valley Estates #1, Block 5, Lot 9 Lot Size 78,465 Sq. Ft. Number of Bedrooms Two 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 DWELLING: Single Family (SF) [] (wA~o ADU) Duplex (D) [] Multiple Dwellings [] (SF and/or D) THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: Slope Waiver - Absorption Trench to Slope Distance: 0' I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit/Rush Fees: ~'7 8 ~ ~ Date of Payment: ~'/~'//~ Re~ipt Number: Permit No. 0~1~11~ Waiver Fees: Date of Payment: Receipt Number: Waiver No. Permit App_2- :. ANDERSONp;o, BoxENGINEERING24077s ANCHORAGE, AK 99524 522-7773 677~7766 (FAX) June 6,2016 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 9, Block 5, Mountain Valley Estates No. 1 Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 9, Block 5, Mountain Valley Estates No. 1 intends to construct a new two-bedroom home on the lot. We are therefore requesting a permit be issued for the construction of a new well and septic system to accommodate the home. The attached Site Plan and backup documentation identify the location and configuration of the proposed well and septic system along with the alternate site. No existing wells are closer than 100' from the proposed septic system. Drainage arrows and ground surface contours are shown on the site plan showing the grade and direction of flow on the lot. No slopes in the area of the proposed septic system exceed 25%. The drainage pattern will not be changed as a result of this project. The test hole placed on the tract in the area of the absorption trench and alternate site indicated silty gravel with sand (GM) material. The percolation rate of the soil was determined to be 4.8 minutes per inch. Groundwater was found at 14' during the placement of the test hole and stabilized at that level dudng the monitoring period. An application rate of 1.2 gallons per day per square foot was used in the design of the absorption system. We are proposing to place a new 1,000-gallon septic tank and a 25' long by 5' wide by 4' effective depth absorption trench to dispose of the effluent generated in the house. The elevation of the distribution line in the absorption trench will be 4.5' below the surface and the total depth will be 8.5'. A minimum of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption trench and 4' over the septic tank. The ground surface on the lot in the area of the absorption trench slopes from the southwest to the northeast at grades exceeding 25%. A slope waiver request is included with this permit application. The new absorption trench will be constructed Lot 9, Block 5, Mountain Valley Estates No. 1 June 6, 2016 Page Two parallel with the contours of the slope as much as possible in conformance with Municipal requirements. The new septic system will be constructed a minimum of 100' from all wells and any surface water and 10' from the proposed and existing water services in the area. If the system is constructed in accordance with our design the following statements apply: The system, if constructed as designed, will have no adverse impact on the wells in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on existing septic systems in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on reserve space, either surface or subsurface, on any lots located in the area. The system, if constructed as designed, will have no adverse impact on drainage patterns in the area. The current drainage pattern will be maintained. Sincerely, Michael E. Anderson, P.E. Attachments LOT 7 LOT 5 T 14 ~ LOT 7 LOT 1 3 I LOT 8 VACANT MOUNTAIN PLAT NO. 2006-171 VALLEY ESTATES LOT 9, BLOCK 78,465 S.F. SUBDIVISION NO. 1 5 LOT 8 FILL NOTES; c System. ' m.." ~'~. ~ - Te$[ Hole LOT 1 0 ~ ~ ~ ~ ~ co - Cleon Ou[ ' : 49th ~ ~ · Fsv - Flow Sphtter Volvo ~.,,,,~, ........................ ~ .... 2C0 - Double Cleon Out 'J~"7/~~ ~N°' cE-43m ..<~. ~,''lTE PLAN '*.-~>~::"~..-., -- _ ___ ~4WUFESS~ SCALE 1" = 50' NOTE: Ar~s of Excessive Slope ore Shown. No LOT 9, BLOCK 5, MOUNTAIN VALLEY ESTATES NO. 1 DESIGN FACTORS: 2 Bedroom Home Perc. Rate: 4.8 Min./Inch Application Rate: 1.2 GPD/SF (Sand Filter) SYSTEM REQUIREMENTS: 5' Wide Trench System 1.000 Gallon Septic Tank 4' Effective Depth 2 Bedrooms X 150 GPD/Bedroom = 300 Gallons Per Day(Design Flow) 300 GPD/1.2 GPDISFI5SFILF*.5 (Red. Factor) = 25 LFBed Length THEREFORE: Construct a new 25' long x 5' wide x 4' effective depth absorption trench at the location shown on the Site Plan. Distribution pipe to be placed 4.5' below the existing ground surface. Total depth to be $.5'. Place a minimum of 4' of cover over septic tank or 2" of insulation and 2' of cover. Insure that all components of the septic sytem are 100' from the well on this and adjacent lots. 6u 4~ /......--G eotextile Fabdc ~ 4" Perforated PVC (Holes Down) Drainfield Rock GM TYPICAL 5' WIDE TRENCH SECTION : u u ding Bed to Drain Away. . ~ NOTE Grade Area S rro n Minimum 6' Separation From Bedrock. ~....~....~...~...~?..~.~....~ Minimum 4' S~paration From Groundwater. ~~ Minimum 100 Separat on From Pr vate Wells in the Area ~'~'~ .............................. ~"~', . . , . ' ~ Minimum 100 Separation From Sudace Water or Streams. ~ Minimum 10' Separation From Water Se~ice Line. .~;~. · ~;~..~.:.~* X.~,...." ~ESS~ 4700 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519 6650 11 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: DATE: 5/10/IO I'vlOUNTAIN VALLEY ESTATES SI. BLOCK 5, LOT 9 PARCEL ID/*: MIKE McGOUGH PROJECT No.: TECHNICIAN: DEPTH [ TEST HOLE1 ] (feet) 0B/0G SLOPE 1 2-- 3 4-- 5 SILTY GRAVEL WITH SAND 6-- ? $ 9 WAS GROUND WATER ENCOUNTERED? YES BOH @ 16' 20 W. ROBERTS SITE PLAN SEE SITE PLAN 2% - DATE READING!GR, OSS TINE NET TINE %,~,~-I~RTO NET BRQP TEST HOLE PRESOAKED PRIOR TO TESTING: 5/16 1 10:12 0.75" 2 10:42 30 7.13" 6.38" 3 10:43 0.75'j I I 4 11'13 30 7.00 6.25" I 5 11:15 0.75 ,, I 6 11 45 30 7.00 6.25 PERCOLATION RATE:4.8 0MiN/INCH)PERC. HOLEDIA. 6" (INCHES TEST RUN BETWEEN: 4.0 FT. and 5.0 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED 1N ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES 1N EFFECT ON THIS DATE: 6/6/2016 DERSON ENGINEERING P.O~ BOX 240773 ANCHORAGE, AK 99524 ~ 522-7773 677-7766 (FAX) June 7, 2016 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Su~ect: Lot 9, Block 5, Mountain Valley Estates Subdivision Absorption Trench to Slope Waiver Dear Onsite Services Engineer: Lot 9, Block 5, Mountain Valley Estates Subdivision has limited area for construction of a septic system due to the location of the steep slopes on the lot. The primary absorption trench and the alternate site will be constructed on slopes of approximately 33%. The distribution line in the trenches will be constructed at 4.5' below grade to provide gravity flow. We are therefore applying for a waiver allowing placement of the absorption trenches at the location shown. Soils in the area are very good for the treatment and absorption of septic effluent. The majority of absorption will be down and migration will be minimal. The imaginary 25% slope from 2.5' above the distribution line invert will daylight at 39' and 45' respectively when fill to a depth of 1' to 2' above existing ground is placed. We therefore recommend a waiver be issued allowing placement of the absorption trench at the locations shown. Michael E. Anderson, P.E. Attachment Z ~LOZ <<_mm Z