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Home My WebLink AboutMOUNTAIN AIR ESTATES #1 BLK 6 LT 1Mountain Air Estates # 1 Block 6 Lot 1 #017-21 1-03 inspection rcepon_i-i-izeoc Municipality of Anchorage Community Development Department Page 1 of 3 On-Site Water and Wastewater Program 4700 Elmore St. • P.O. Box 196650 Anchorage, AK 99519-6650 • http://www.muni.org/onsite • (907) 343-7904 ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP111044 PID Number: 011-217-03 New ❑ El Upgrade Name: Eric Hjelm ABSORPTION FIELD ❑ Deep Trench El Shallow Trench✓❑ Bed ❑Mound Address 14910 Wildien Drive Anchorage, AK 99516 ❑ Other Phone Number of Bedrooms Soil Rating Total depth from original grade 947-1110 3 7 GPDrSF 0 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade Gravel depth beneath pipe 1 OFt. Subdivision Block Lot Mountain Air Estates No. 1 6 1 Fill added above original grade 4-5 Ft. Gravel length 46 Ft. Township Range Section Gravel width 15 Ft. Beds: Number of Lines 3 Distance between lines 5Ft. SEPARATION DISTANCES To Septic Absorption Holding Sewer Total absorption area Number of trenches Dist. between trenches From Tank Field Lift Station Tank Line 690 Ftp Ft. Well >100' >100' N/A N/A >25' TANK ❑ Septic ❑ S.T.E.P. ❑ Holding ❑ Other Manufacturer Anchorage Tank Capacity 1,250Ga1. Surface water >100' >100' N/A N/A Material Number of compartments Lot Line >5' 5'** N/A N/A Steel Two NA Foundation >5' >10' NIA N/A LIFT STATION Manufacturer Capacity Curtain Drain None Noted Gal. Remarks **See Lot Line Waiver. Pump on level at in. Pump off level at in. High water alarm at in, Pump make and model Electrical Inspections performed by Installer PIPE MATERIAL Housetotank D3034 Tankto - drainfteld D3034 Scott's Services Drainfield HDPE CO/MT D3034 Inspector A. Harala BENCH MARK (Assumed elevation) 100.0ft Inspection s, � 6/14/11 6114/11 Location and description dates: ped 3,d 4m Garage Slab. COMMUNITY DEVELOPMENT DEPARTMENT APPROVALO Stamp Conditional Approval: Date AW '",''� �'ka oBen in J Schiller ,:,= ®/ s '.� C 25(92 ; � 40/ it Approved Date %_0 Il' mOFESSIC`"` v inspection rcepon_i-i-izeoc Municipality of Anchorage DEVEOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage, AK. 99519-6655 - 343-7904 Permit Number: OSP111044 CvOUO�`p,�1E o 0 � N j5 p340.E 9q 62 o TNS � ry RECYCLED ASPHALT DRIVEWAY T1 -- UTILITY & DRAINAGE EASEMENT N 88'23'05"E 152.36' LOT 10 Page 2 of 3 PID No. 011-217-03 1 $38.835.3- M2 51 ' 52 ' C4 S2 75 2 M1 'C4M2 ' M 1 rn. N f m LOT 2 N LOT 1 21,222 S.r. PLAN AS BUILT SCALE 1" = 40' LOT 9 Permit Number: OSP111044 Municipality of Anchorage Page 3 of 3 DEVEOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage, AK. 99519-6655-343-7904 On -Site Wastewater Disposal System or Well Inspection Report / 1,000 Gallon \ JSeptic Tank \ 7.6 97.45 PID No. 011-217-03 Development Services Department Building Safety Division • �'� On -Site Water & Wastewater Program *AZ 4700 Elmore RoadP.O. Box 196650Mark&egich Anchorage,AK99507 Mayor w ,nnuni.orq/onsite (907)343-7904 Pump Installation Log Well Drilling Permit Number: SW OSPI11044 Date of Issue: 5412011 Parcel Identification Number: 1721103000 Legal Description Property Owner Name & Address: Block 6, Lot 1 Mountain Air Estates Erik Hjelm 14910 Wildlen Drive Anchorage, AK 99516 Pump Installation Date: 6/6,2012 Pump Intake Depth Below Top of Well Casing: !!o feet Pump Manufacturer's Name: couids Pump Model: 73B07422C Pump Size 314 hp Pitless Adapter Burial Depth: N/A feet Pitless Adapter Manufacturer's Name: Pitless Adapter Installer: NIA Well Disinfected Upon Completion? 10 Yes ❑ No Method of Disinfection: chlorine tablets Comments: Pump Installer Name: Aarow Pump & Well service, LLC P.O. Box 110490 Anchorage, AK 99511 Attention: The pump installer shall provide a pump installation log to the DSD within 30 days of pump installation. Alpine Drilling & Enterprises Well Log Permit Number: #SWOSP111044 Date of Issue: 5-4-11 Parcel Identification Number: 1721103000 Date Started: 6-29-11 Date Completed: 6-30-11 Is well located at approved permit location? x Yes ❑ No Legal Description: Mountain Air Estates #1 Blk 6 Lot 1 Property Owner Name & Address: Erik Hjelm 14910 IMldien Drive Anchorage, Alaska 99516 Borehole Data: Soil Type, Thickness & Water Strata Depth (ft) From To Method of Drilling x air rotary ❑ cable tool Casing type: steel Stick-up 0 2 Wall Thickness: .250 inches Organics & silt 2 3 Diameter: 6 inches Depth: 121 feet Gravelly silt 3 29 Liner Type: Diameter: inches Depth: feet silty cobbly gravel 29 41 Casing stickup above ground: 3 feet Static water level (from ground level): feet gravelly cobbly silt 41 93 silt 93 101 Pumping level: 121 feet after cobbly gravelly silt 101 119 2 hours pumping 20+ gpm Recovery Rate: 20+ gpm water sand & gravel 119 121 1 Method of Testing: air lift Well Intake Opening Type: x Open End ❑ Open Hole ❑ Screened Start_ feet Stopped feet ❑ Perforations Start feet Stopped feet Grout Type: bentonite granules Volume: 2 bgs Depth: Start 0 feet Stopped ? feet Pump: Intake Depth feet Pump size hp Brand Name Well Disinfected Upon Completion? x Yes ❑ No Method of Disinfection: chlorine tablets Comments: Well Driller: Alpine Drilling & Enterprises PO Box 110496 Anchorage AK 99511 ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 FAX October 18, 2012 Municipality of Anchorage U-telOIa� r3�g Development Services Department On -Site Water and Wastewater Program P.O. Box 196650 Anchorage, AK 99519-6650 Subject: Lot 1, Block 6, Mountain Air Estates Subdivision No. 1 Separation Distance Waiver Absorption Trench to Lot Line Dear On Site Services Engineer: The surface area to place a septic system on Lot 1, Block 6, Mountain Air Estates No. 1 is restricted by several protective well radii on this and the surrounding lots. We are therefore requesting a lot line waiver to allow the placement of the absorption bed within 6' of the east property line. The alternate site will be within 4' of both the north and east property lines. The primary site will be 5' from the east property line. Soil at these locations is sand with silt and some gravel which is normally effective in the absorption and treatment of septic effluent. Placement of the sites within 4' of the eastern and northern lot lines will not adversely affect the neighboring lots. We hereby recommend a lot line waiver be issued allowing placement of the absorption systems within 4' of the respective lot lines. Sincerely, njamin Jchiller, P.E. Municipality of Anchorage 0 Development Services Division On -Site Water and Wastewater Program oellr Department * * * * VARIANCE/WAIVER REVIEW * * * * Waiver#: osV121378 PID#:017-211-03 COSA#: osc121480 Permit#: oso111044 Legal Description: Mountain Air Estates #1 B-6 L-1 Engineer: Anderson Engineering Applicant: Eric Helm 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 5.0 feet. This waiver approval applies to the existing 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: (T r / 2 Approved by: am f evie r ..............................................w ... ......................... Rec#: 04047G Amount: $320.00 Date Paid: 10118/12 **** VARIANCEMAIVER REVIEW **** Development Services Department Building Safety Division • ' On -Site Water & Wastewater Program *AE 4700 Elmore RoadP.O. Box 196650 Mark Segich Anchorage, AK 99507 Mayor www.muni.orq/onsite (907)343-7904 Pump Installation Log Well Drilling Permit Number: SW OSP111044 Date of Issue: 5/4/2011 Parcel Identification Number: 1721103000 Legal Description \ [14 erty owner Name & Address: Block 6, Lot 1 Mountain Air Estates J�J(\ Hjelm 0Wildien Dreorage, AK 99516 Pump Installation Date: 6/6/2012 Pump Intake Depth Below Top of Well Casing: /!o feet Pump Manufacturer's Name: Goulds Pump Model: 7SB07422C Pump Size 3/4 hp Pitless Adapter Burial Depth: NIA feet Pitless Adapter Manufacturer's Name: Pitless Adapter Installer: N/A Well Disinfected Upon Completion? Q Yes ❑ No Method of Disinfection: chlorine tablets Comments: Pump Installer Name: Aarow Pump & well service, LLC P.O. Box 110496 Anchorage, AK 99511 Attention: The pump installer shall provide a pump installation log to the DSD within 30 days of pump installation. On -Site Water & Wastewater System Permit MUNICIPALITY OF ANCHORAGE Development Services Department On -Site Water & Wastewater Program 4700 Elmore Road, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Permit Number: OSP111044 Tax Code Number: 01721103000 Work Type: WellSeptic Initial Permit Effective Dates: May 04, 2011 to May 03, 2012 Design Engineer: ANDERSON ENGINEERING Subdivision: MOUNTAIN AIR ESTATES #1 Site Legal Address: MOUNTAIN AIR ESTATES #1 BLK 6 LT 1 G:3139 Owner/Address: HJELM ERIK 14910 WILDIEN DRIVE ANCHORAGE AK 995163967 Site Mailing Address: 15151 Mesa PL, Anchorage This permit is for the construction of: Lot Size in Sq Ft: 21222 Total Bedrooms: 3 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. ii C Ile, v1 J� i �1^tt � S K'� } Gt k-) [!� 1^ `✓� d i 1^ x) Z'L L vl�i ! ll` 41 4f ��01301 ➢ �O.i 11112 re_ ses f' ire Received By: Issued By: Date: r Date: �/ / ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 017 Zr/. o3 Property owner(s) Ege IL A1.,7 cL_r^ Day phone cI 1( 7 i/ l a Mailing address /V9/& Jit-jiC�A) DPiVE APjc.4ci Ac;� 4K_. m7tc, Site address C4A., (Az r=7- Ay N oc eo /qws A �Pt-4LC Legal description (Sub'd., Block & Lot) 4,e ► /y IS -cuc C. Mr A& L s iAm s Je Legal description (Township, Range & Section) Lot Size Zs, ZZ L- Sq. Ft. Number of Bedrooms 3 THIS APPLICATION IS FOR: THIS APPLICATION IS AN: (N all that apply) Initial Absorption Field 19 Septic Tank I• Upgrade ❑ Holding Tank ❑ Renewal ❑ Privy ❑ Private Well CK Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE / WAIVER REQUEST FOR: I certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Perm' Rush Fees: 1 7-1c= Date of Payment: Receipt Number: Permit No. oSYn I) I U GABuilding\On Site\Forms\Client Forms\Permit App_01 041 1.doc Waiver Fees: Date of Payment: Receipt Number: Waiver No. (Rev. 1 A 1) col ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 FAX April 27, 2011 Municipality of Anchorage Development Services Department On -Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 1, Block 6, Mountain Air Estates Subdivision No. 1 Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 1, Block 6, Mountain Air Estates Subdivision No. 1 intends to construct a new three-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 septic system along with the alternate site. No existing wells or septic systems are closer than 100' from the proposed well or septic system. Drainage arrows are shown on the site plan showing the grade and direction of flow on the lot. The drainage pattern will not be changed as a result of this project. The test holes placed on the lot in the area of the absorption trench and alternate site indicated gravel with silt (GM). The percolation rate of the soil was determined to be between 1 and 5 minutes per inch. Groundwater was found during the placement of the test holes at 4' and 6' below the surface. An application rate of .7 gallons per day per square foot was used in the design of the absorption system as filter sand is required to raise the bed above the water table. We are proposing to place a new 1,250 -gallon septic tank and a 43' long by 15' wide absorption bed to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption bed will be 1' above the surface and the total depth of the bed will be 2' below the surface. All organic material will be removed and replaced with clean gravel. Filter sand will then be placed to raise the bed 1' above the ground surface. A minimum of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption bed and 4' over the septic tank. The ground surface on the lot in the area of the absorption trenches slopes to the southwest at a grade approximating 5%. The new trench will be constructed parallel Lot 1, Block 6, Mtn. Air Estates Subdivision April 27, 2011 Page 2 of 2 C (V 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. The house, shop and STEP tank will be lower than the absorption trench with the septic effluent pumped to the absorption area through a 1.25" PVC line. If the system is constructed in accordance with our design the following statements apply: 1. 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. 2. 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. 3. 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. 4. 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, Vjj-j- C— Q"�' Michael E. Anderson, P.E. Attachments OF •.• PS..............q� 9�ai 49th ..� ...... ...... ......... r.... A� �.. n MICHAEL E. ANDERSON b •• NO. CE -4381 •'• ,♦♦lot OFESS•\� �.•••• co I I I 2 5 i 3 Well i \ I Well U) nm 1 Ld well 6 z \\\ / VACANT -- — / / I I ;kP'I I i I SNOW LAKE i ��..••`OF''�a as .. :' �:♦ 49th ............. ... .. ...:.. i. ....................o 0.v—'; MICHAEL E, ANDERSON ♦� AREA MAP ��'• NO. CE -4381 ;'AAFF ♦�1 ........... .tx��F.�: SCALE 1' = 100' Li U n Cn LLI I 41C 49th ` ?�-........... MICHAEL E. ANDERSON ' 4 '. No. CE -4381 ,••�� FESS14N�i<••� C01 MOUNTAIN AIR ESTATES NO. 1 LOT 1 , BLOCK 6 21,222 S.F. Alternate Site v�oFol / 30' Long x 3' Wide C�� x 8' Effective Depth Absorption Trench / w/Advantex Treatment System. Proposed N ® Well M TH 1 1,2501 Gallon Septic Tank ;P/ IR Three Bedroom sv Home FCO I CO(2) N Sy � 0 l 3 Driveway / TH2 / S9 t 1%3S9 43' Long x 15' Wide Absorption Bed -------------------------------- 10' ------------------------------- 10' Utility and Drainage Easement N88°23'05"E 152.36 SITE PLAN SCALE 1' = 30' f LEGEND: SV — Septic Vent MT — Monitor Tube CO — Clean Out TH — Test Hole FCO — Foundation Clean Out col LOT 1, BLOCK 6, MOUNTAIN AIR ESTATES SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: 3 Bedroom Home Raised Bed System Perc. Rate: 2-5 Min./Inch 4 Bedroom Advantex Treatment System Application Rate: .7 GPD/SF 500 Gallon Add On Lift Station Raised Bed Absorption System 3 Bedrooms X 150 GPD/.7 GPD/SF = 642.85 SF Absorption Area 642.85 SF/15 SF (Width) = 42.8 LF Bed Length THEREFORE: Construct anAbsorption Bed 43' Long x 15' Wide as Shown Below. Place Distribution Piping at 1.0' Above Original Ground Surface. Remove Organics to 2' Below Surface and Place Clean Sand & Gravel to Provide 4' Separation From Groundwater. Place Insulation and 2' of Cover Over Bed or Mound Over Bed Minimum of 3'. Place 4' of Fill Over Tank. 4 1� .5' 1' around 2' Top 6" of Mound Must Be Topsoiled and Vegetated to Prevent Erosion. Natural Backfill 2" Insulation & 2' Cover (Min.) O O Drainfield Rock Coarse-Sarid--(See Specification) As Required for Levelling �— Min. 2' Clean Sand and Gravel —� In Situ SM Soil 2.5' 5' 5' 2.5' Geo 4" PVC - Holes Down O\�`�0' TYPICAL BED SECTION (NO SCALE) NOTE: Grade Area Surrounding Bed to Drain Away. Minimum 6' Separation From Bedrock. Minimum 4' Separation From Groundwater. Minimum 100' Separation From Wells in the Area. Minimum 100' Separation From Surface Water or Streams. Minimum 10' Separation From Water Service Line. 49th' fir.... 4.�W 7 '• Michael E. Anderson s . No. CE4381 ' �2 a •� ��FESS1�� C61 Performed For: Legal Descriptioi 7- 8- 9- 10- 11, 12- 13- 14- 15- 16- 17- 18- 19- 20 - ERIK HJELM Mountain Air Ests., Subd., No. 1, Blk 6, L1 i" Date Performed: May 16, 2011 Township, Range, Section: WAS GROUND WATER ENCOUNTERED? Yes S' IF YES, AT WHAT DEPTH? -6.1 L Depth to Water After o Monitoring? _5.8' E Date: 5 /19 / 11 10] UtIL Reading Date Gross Time Net Time Depth to Water Municipality of Anchorage .�y 0 '•,� ®® Development Services Department 49aINEE mew Building Safety Division ; On -Site Water and Wastewater Program 4700 Elmore Road 8`'008•• •••: •«® . • P.O. Box 196650 Anchorage, AK 99507 • else NZ vo: MICHAEL b ANDERSON q- aw www.ci.anchoraae.ak.us (907) 343-7904 r CEP 4381 .' �` ' �r /' . �. 41„ Ar Soils Log -Percolation Test ��t49'°ROFESS10 ON. lk Performed For: Legal Descriptioi 7- 8- 9- 10- 11, 12- 13- 14- 15- 16- 17- 18- 19- 20 - ERIK HJELM Mountain Air Ests., Subd., No. 1, Blk 6, L1 i" Date Performed: May 16, 2011 Township, Range, Section: WAS GROUND WATER ENCOUNTERED? Yes S' IF YES, AT WHAT DEPTH? -6.1 L Depth to Water After o Monitoring? _5.8' E Date: 5 /19 / 11 10] UtIL Reading Date Gross Time Net Time Depth to Water Net Drop 5/16/11 13,v N �17ia '3fA �'l0 ! :Z rL,'Ir •ir; �-�6�i ia,e �� rz PERCOLATION RATE �(,/ (minutes/inc) PERC HOLE DIAMETER �I TEST RUN BETWEEN ,O FT AND— �y FT COMMENTS Perc Test Cavity was pre-soaked PERFORMED BY: A. Harala I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: CC Municipality of Anchorage .!Q.• �a �� Development Services Department ��•• �•.'� Ag Building Safety Division r On -Site Water and Wastewater Program ••••••.�•• ......:... 4700 Elmore Road r OF P.O. Box 196650 Anchorage, AK 99507 ��•��•••••••••••••••••••••••••rs www.ci.anchorage.ak.us E ANDERSON0:Qr OF (907) 343-7904 �# sJ, : CE'4381 Soils Log - Percolation Testi �a; PROFESS10�a�':•` Performed For: ERIK HJELM Leg cription: Mountain Air Ests., Subd., No. 1, Blk 6, L1 nD�epTh J- / 4- • r 5- 6- 7- 8- 9- 10, -6-7-8-9- 10- . 11- 12- 13- 14- 15- 16- 17- 18- 19- 20- OTN Date Performed: May 16, 2011 Township, Range, Section: 9� 62 Z CU R, r� O ,I CO. C f 101 Utll Esint . -^ WAS GRUUNU WATER ENCOUNTERED? Yes s IF YES, AT WHAT DEPTH? -4.1' L Depth to Water After P - 4.0' P Monitoring? E Date, 5/19/11 Reading Date Gross Time . Net Time Depth to Water Net Drop 5/16/11 V3';' ; ao (o NUNS <61/mf '31s S7n�el 5.,tt -A Z, ,fj r oIIti( It S� 31 �.7 °. PERCOLATION RATE �_ (minutes/inch) ' PERC HOLE DIAMETER TEST RUN BETWEEN FT AND s 3 �Z FT COMMENTS Perc Test Cavity was pre-soaked PERFORMED BY: A. Harala i CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: GARNESS ENGINEERING GROUP, Ltd CONSULTANTS & GENERAL CONTRACTORS LEGAL DESCRIPTION: PERFORMED FOR:— DEPTH OR:_DEPTH f t SOIL LOG - PERCOLATION TEST MOUNTAIN AIR ESTATES #1; BLOCK 6, LOT 1 DAVID MICHAEL nATF- ( ee ORGANICS 1 GM MORE SILT WITH DEPTH SW, BLACK ...... n T ..:.......'y�l Garn ells. • . . P/1 / �e ��.'Oro5 \ \ DEPTH TO GROUNDWATER DATE 8.5' WET 5/13/2010 10', 5/20/2010 2:20 – 6" – f DATE READING CLOCK TIME NET TIME (MINUTES) WATER LEVEL READING NET DROP (INCHES) 5/18/2010 1 2:20 – 6" – 2 2:30 10 1. 5- 3 2:30 – 6" – 4 2:40 10 1" 5- 5 2:40 – 6" – 6 2:50 10 1" 5- 7 2:50 – 6" – 8 3:00 10 1 " 5" 9 3:00 _ - 6" – 10 3:10 10 1" 5- 11 3:10 – 6- 12 3:20 10 1. 5- 19— PERCOLATION RATE 2 (MIN./INCH) PERC. HOLE DIA. 6 (INCHES; TEST RUN BETWEEN 3.0 FT. AND 4.0 FT. 20 A FOUR HOUR PRESOAK WAS PERFORMED: 0 YES ❑ NO COILS LOGGED BY: ROB CAMPBELL PERCOLATION TEST PERFORMED BY: ANDREW GRAY COMMENTS: PERFORMED BY GEG, Ltd. I, JEFFREY A. GARNESS, CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE: G/2r 11b col ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION AND MATERIAL SPECIFICATIONS SUBJECT: LOT 1, BLOCK 6, MOUNTAIN AIR ESTATES SUBDIVISION GENERAL: The scope of this project includes the procurement and placement of a new 1,250 -gallon septic tank at the location shown on the Site Plan. Work also includes the construction of a new 43' long X 15' wide absorption bed at the location also shown on the Site Plan. The distribution line in the bed will be placed at 1' above the existing ground surface. Total depth of the bed will be 2' below the existing ground surface. The new absorption bed and septic tank must be placed a minimum of 100' from all private wells and any surface water in the area and 10' from the water service line on the lot. A minimum of 3' of cover is required over the absorption trench and 4' of cover over the septic tank. The existing ground must be excavated to remove all organic material. Clean gravel or coarse sand must then be placed to the original ground surface. A minimum of 1' of coarse sand meeting the Muncipal gradation for filter sand must then be placed. The absorption bed must be constructed atop the filter sand. A total of 3' of cover must be placed over the bed. In lieu of cover 2" of insulation and 2' of cover may be placed over the bed. The outer 6" of the mound over the bed must be revegetated to prevent erosion. Grading must be completed around the bed to direct drainage away from the absorption area. 2. Construction shall be in accordance with the approved site plan, design drawings, Municipal Permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. 3. The Contractor shall be responsible for obtaining all underground utility locates and for the layout of the septic system and verification of the location of all lot lines. The Contractor must also verify the location of wells in the area and assure that the separation distances are met. 4. Unless specifically agreed otherwise, the contractor shall be responsible for final grading areas subsequently depressed from soil settling. Property owner shall be responsible for revegetation of affected areas unless specifically agreed otherwise. 5. Contractors installing wastewater disposal systems must be certified by the Municipal Development Services Department Building Safety Division On Site Water and Wastewater Program for system installations. Owners installing their own systems must receive prior approval from the On Site Water and Wastewater Program before beginning system installation. Mountain Air Estates, Lot 1, Block 6 May 23, 2011 Cd.l Page 2 of 3 SEPTIC TANK INSTALLATION 1. A new 1,250 -gallon septic tank must be procured from an approved source and installed at the location shown. 2. A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. 3. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. 4. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. 5. Tanks installed without 4' of cover shall have a minimum of 2" of direct burial insulation. 6. A foundation cleanout shall be installed one to four feet from the building foundation. Two cleanouts are required between the tank and the drainfield. 7. Final grading over the tank shall be such that a positive slope exists away from the septic tank. DRAINFIELD CONSTRUCTION: 1. The drainfield shall be constructed to the dimensions shown on the design. The bottom of the bed shall be within 2" of level. 2. Distribution piping must be placed level with perforations down atop a level bed of drainfield rock. Rock should then be placed over the pipe to provide a minimum of 2" of cover. 3. A silt barrier or geotextile fabric must be placed between the drainfield rock and the natural soil backfill. 4. Monitor tubes must be 4" in diameter and installed at the locations shown on the design. The portion below ground must be perforated. 5. Contractor shall verify the septic tank and drainfield are a minimum 100' away from any private water wells in the area, 150' from a Class "C" Well or 200' from any community well. 6. Direct bury insulation must be placed over the distribution system if less than 3' of backfill depth is available. Finish grade over the trench must be mounded to prevent settlement or depressions. Mountain Air Estates, Lot 1, Block 6 May 23, 2011 C D l Page 3 of 3 7. Grade area surrounding the absorption trench to drain away. 8. A minimum 2' of accepting soil is required below the drainfield rock for a 5' wide trench. Contractor shall verify this condition prior to placement of the rock. All pockets of unacceptable materials must be removed and replaced. MATERIAL SPECIFICATIONS: 1. Septic tanks must be constructed by a Municipally approved septic tank manufacturer. 2. The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: Cast Iron (perforated and solid), ASTM D3034 or P.V.C. (perforated and solid), ASTM F810 or H.D.P.E. (perforated, but not solid) and ASTM D2662 or A.B.S. (perforated and solid). 3. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Co. Styrofoam HI or equal). 4. Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Fernco, or equal). 5. A permeable geotextile fabric (Typar, Mirafi or equal) must be installed between the final drain rock layer and the native soil layer. 6. All drain rock shall be .5" to 2.5" in diameter with less than 3% passing the #200 sieve. INSPECTIONS.- Municipal NSPECTIONS: Municipal Ordinance requires a minimum of two inspections. These inspections must be conducted under the supervision of a professional engineer registered in the State of Alaska. The first inspection must be conducted after the excavation of trenches, beds or pits and before the installation of any gravel. A septic tank may be set in place, but may not be backfilled. The second inspection must be conducted after the placement of the geotextile fabric, gravel, distribution piping, standpipes, cleanouts and insulation. No backfill should be in place at the time of inspection. Contractor shall provide a copy of all field survey layout and construction notes for use in preparing the certified as -built of the completed system. Certificate of On -Site Systems Approval Parcel I.D. 017-211-03 1. GENERAL INFORMATION Expiration Date: / `► — Complete legal description Mountain Air Estates #1, Block 6, Lot 1 Location (site address) 15151 Mesa Place, Anchorage, AK 99516 Current property owner(s) Gabriel & Marianne Nelson Day phone 907-227-1094 Mailing address 15151 Mesa Place, Anchorage, AK 99516 Real estate agent 2. TYPE OF DWELLING: 0 Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) Day phone 3. NUMBER OF BEDROOMS: 4 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Private Well Q Private Septic Fx_1 Water Storage ❑ Holding Tank ❑ Community Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ Waiver request for: Distance: Received by: Date: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ �51� Waiver Fee $ Date of Payment �S r% R Date of Payment Receipt Number a 213 Receipt Number er COSA# l/Sc N11—G-1 Waiver# 5. 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. I acknowledge that On -Site staff may visit the site to verify the information submitted. Name of Firm Forge Engineering Phone 907-522-7773 Address 1399 W. 34th Ave Suite 101, Anchorage AK 99503 Engineer's Printed Name Michael E. Anderson, P.E. Date $/6/19 6. DSD SIGNATURE System #1 Approved for 4 System #2 Approved for Disapproved Conditional approval for bedrooms bedrooms bedrooms, with the following stipulations: By: Original Certificate Date: 9,^ ) The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 7. ATTACHMENTS: COSA Checklist X Nitrate Advisory Septic System Advisory Arsenic Advisory Well Flow Advisory Other COSA Checklist blue sheet Legal Description: Mountain Air Estates #1, Block 6, Lot 1 If more than 1 septic system on lot: COSA Checklist # of A. WELL DATA ❑ Well log is filed with Onsite (or attached) Date drilled 6/30/11 Total depth 121 ft Cased to 121 ft ❑ Sanitary seal is functioning correctly ❑ Wires are properly protected Casing height (above ground) ' 24 in. Date of flow test for COSA 7/29/19 Static water level at beginning of test 63.2 ft. Comments B. TANK DATA Age of tank(s) 8 years Tank type/material Septic/Steel Measured operating fluid level in septic tank 11" ❑ Standpipes/foundation cleanout per record drawing Date of pumping '7/26/19 - Pumped prior to measurement. D. ABSORPTION FIELD DATA Absorption Bed Which system tested (date installed) 6/14/11 ❑ ALL standpipes present per record drawing Total measured depth from grade 6.2 ft (max) Measured depth to pipe invert from grade 5.2 ft (min) ❑ N/A — pressurized field ❑ Monitor tubes go to bottom of effective. If not, state depth into effective ❑ Code -required soil cover over field ❑ System presoaked (Required if vacant for greater than 30 days prior to date of test) Gallons introduced gallons Comments/Deficiencies: COSA Checklist yellow sheet Parcel ID: 017-211-03 Structure served by this system Well production at time of test 4.3 gpm Water storage tank volume NSA gallons Well disinfected for coliform test? ❑ Yes ❑ No ❑ Coliform bacteria is Negative Nitrate mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ❑ Arsenic less than MRL (ND) Collected by Forge Engineering Date of Sample 812/19 C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments: Adequacy test date 7/29/19 Results ❑✓ Pass For 4 bedrooms Fluid depth prior to test 0 in Water added 725 gal New depth 0 in Elapsed time 1440 min Final fluid depth 0 in Absorption rate 600+ gpd Any rejuvenation treatment (past 12 months) If yes, enter date Z E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) Septic Tank/Lift Station on Lot > 100' ✓❑ Yes if No Community Sewer Manhole/Cleanout > 100' ❑✓ Yes if No ft✓❑ Yes if No Neighboring Tank > 100' Q Yes if No ft Private Sewer/Septic Line > 25'✓o Yes if No Absorption Field on Lot > 100' ❑✓ Yes if No ft Holding Tank > 100' Q Yes if No Neighboring Absorption Fields > 100' Surface Water > 100' 0 Yes Animal Containment > 50' Q Yes if No Q Yes if No ft *See Lot Line Waiver OSP121378. Manure/Animal Excreta Storage > 100' Community Sewer Main > 75' ❑✓ Yes if No ft ® Yes if No From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' 0 Yes if No ft Surface Water > 100' ft ft ft ft ft Q Yes if No ft Property Line > 5' ✓❑ Yes if No ft Wells on Adjacent Lots: Absorption Field > 5' Q Yes if No ft Private Wells > 100' Q Yes if No. Water Main > 10'✓❑ Yes if No ft Community Wells > 200' ❑✓ Yes if No. Water Service Line > 10' ❑✓ Yes if No ft If septic tank is under driveway comment below From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' ®✓ Yes if No ft If absorption field is under driveway comment below Property Line > 10' ❑ Yes if No 51* ft Wells on Adjacent Lots: Water Main > 10' Q Yes if No ft Private Wells > 100' Yes if No Water Service Line > 10' ❑✓ Yes if No ft Community Wells > 200' QQ Yes if No Surface Water > 100' 0 Yes if No ft F. ENGINEER'S COMMENTS *See Lot Line Waiver OSP121378. G. ENGINEER'S CERTIFICATION l certify that l 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. COSA Checklist yellow sheet ft ft ft ft Parcel I.D. 017-211-03 RUSH! , s„ Municipality of Anchorage On -Site Water and Wastewater Program (907)343-7904 Certificate of On -Site Systems Approval 1. GENERAL INFORMATION Expiration Date: 1-18--13 Complete legal, description Mountain Air Estates No. 1, Block 6, Lot 1 Location (site address) 15151 Mesa Place Anchorage, AK Current Property -owners) Eric Hjelm Day phone 947-1110 Mailing address' -14910 Wildien Drive Anchorage, AK 99516 Real Estate Agent Day phone 2. TYPE OF DWELLING: ❑ Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: Three 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Individual Well 171 Individual El Individual Water Storage ❑ Holding Tank ❑ Community Class Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ Waiver/Variance COSA to be released to the engineer, unless otherwise requested by the engineer. _ COSA Fee $ (n J6 ^ 1QewoA j2USrlWaiver Fee $ _ Date of Payment 1 O { 1 gi ka Date of Payment Receipt Number 0 �) (.P2(O G Receipt Number COSA# Q'SC f alb O Waiver# 5. 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. Name of Firm Anderson Engineering Phone 522-7773 Address P.O. Box 240773 Anchorage, AK 99524 Engineer's Printed Name Benjamin J. Schiller, P.E. ,,,,,JDate 10/17/2012 OF A4 40 6. DSD SIGNATURE b— System #1 Approved for 3 bedrooms System #2 Approved for _ bedrooms Disapproved Conditional approval for AR Al i Yesu o ;Benj n 1 Schiller; ip bedrooms, with the following ✓t -.5 i /e % q () L/ gy:z zv �za Original Certificate Date: The n�iciiif ®rage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon theations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 7. ATTACHMENTS: COSA Checklist X Nitrate Advisory Septic System Advisory Arsenic Advisory Well Flow Advisory Other COSA blue sheet If more than 1 septic system is on the lot: COSA Checklist # of _ Structure served by this system Certificate of On -Site Systems Approval Checklist Legal Description: Mountain Air Estates NO. 1, Block 6, Lot 1 Parcel ID: A. WELL DATA Well type P If A, B, or C provide PWSID # Well Log (YIN) Y Date completed 6/30/11 Sanitary seal (YIN) Y Total depth 121 It Cased to 121 ft. FROM WELL LOG Date of test 6/30/11 Static water level 67 ft Well production 20 Tp M. WATER SAMPLE RESULTS: Coliform 0 colonies/100 mL Nitrate N/D mg/L Arsenic ug/L Date of sample: 10/9/2012 B. SEPTIC/HOLDING TANK DATA Wires properly protected (YIN) Y Casing height (above ground) !i in. AT INSPECTION Collected by: iii MEA Tank Type/Material Septic/Steel Date installed ro - / q -// Tank size 1,250 gal. Number of Compartments 2 Cleanouts (YIN) Y Foundation cleanout (YIN) Y Depression over tank (YIN) N High water alarm (YIN) N Date of pumping New Pumper Construction C. ABSORPTION FIELD DATA Date installed 6/14/11 Soil rating (g.p.d./ft' or ftp/bdrm) y GPD/SF System type Bed Length 46 ft. Width 15 ft. Gravel below pipe 1 ft. Total depth +5 ft. Eff. absorption area 690 ft2 Monitoring tube Y Depression over field N Date of adequacy test New Const. Results (Pass/Fail) For _ bedrooms Fluid depth in absorption field before test in. Water added gal. New depth in. Elapsed Time: min. Final fluid depth in. Absorption rate >= g.p.d. Any rejuvenation treatment (past 12 mo.) (YIN & type) If yes, give date D. LIFT STATION Date installed Size in gallons "Pump on' level at in. "Pump off' level at Datum Cycles tested E. SEPARATION DISTANCES WELL ON LOT TO: >100' Septictank/lift station on lot Absorption field on lot >1 00' N/A Public sewer main Sewer /septic service line >25' >50' Animal containment areas SEPTIC/HOLDING TANK ON LOTTO: Building foundation >5 Property line >5 Water main N/A Water service line >1 0, Wells on adjacent lots >100' ABSORPTION FIELD ON LOT TO: 5.*** Properly line Building foundation > 10' Water Service line >10' Surface water >100' Curtain drain None Noted Wells on adjacent lots >100' Manhole/Access (Y/N) in. High water alarm level at Meets alarm & circuit requirements? On adjacent lots >1 00' On adjacent lots >1 00' Public sewer manhole/cleanout N/A Holding tank N/A Manure/animal excrete storage areas >100' F. COMMENTS ***See Lot Line Waiver. G. ENGINEER'S CERTIFICATION 1 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 Benjamin J. Schiller, P.E. Date 10/17/2012 COSA brown sheet 10-10-12.doc Absorption field >5. Surface water >100' Water main N/A Driveway, parking/vehicle storage >10' ✓�'� �veaa9a�i AW 49Trr�F� • •su ti • e... 9 �(---, ....u.y0. O,� �TBen1Cc.1J Schiller. �r✓ �92 La 111 i�OVOOR �� D 10 M 30.00' E 38.5' ESI ENCS O 2'x13.3' CANT ' W W .. � 6'x26.3' - N CANT RECYCLED ASPHALT DRIVEWAY — �10' UTILITY & DRAINAGE EASEMENT N 88'23'05"E 152.36' LOT 10 I I SEPTIC CLEANOUT SEPTIC CLEANOUT LOT 1 21,222 S.F. 7 PLOT PLAN _ AS BUILT X SCALE 1" = 30' GRID 3139 Project No._ 11500 Daryl Avenue, Anchorage, Alaska Lang & Associates, inc. Registered Land Surveyors (907) 522-6476 Phone 9 Y (907) 522-4625 Fax c LOT 2 LOT 9 11-053A1 99515-3049 kenOlangsurvey.com / jonathanOlangsurvey.com :=;k. � °. • • • • • • •..I,cjsglz�o I hereby certify that I have surveyed the following described property: pQ �O� LOT 1, BLOCK 6, MOUNTAIN AIR ESTATES #1 SUED, (Plat 71-61) oma:" 49TH Anchorage Recording District, Alaska, and that the improvements situated thereon are P.:. within the property lines and do not encroach onto the property adjacent thereto, that Q no improvements on the property lying adjacent thereto encroach on the surveyed Q 0 ....:............... premises and that there are no roadways, transmission lines or other visible A . • • • • • .; O , a easements on said property except as indicated hereon. Q c, KENNETH G. LANGi s LS -5202 •.•, O� Dated this the Day of at Anchorage, Alaska OQFa 5 0 %FESSIONA1-vp o It is the responsibility of the owner to determine the existence of any easements, covenants, or restrictions which do not appear on the recorded subdivision plat.