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HomeMy WebLinkAboutCHEROKEE RIDGE LT 1Cherokee Ridge Block Lot 1 # 015-272-94 Municipality of Anchorage On -Site Water and Wastewater Program - (907) 343-7904 Page of -SITE WASTEWATER INSPECTION REPORT Permit number: OSPI61198 PID Number: 015-272-94 Dwelling; Q Single Family (SF) Duplex (D) ❑ Multiple (SF and/or D) Project: ❑ New [9 Upgrade Name. White Raven Development, Inc. ABSORPTION FIELD Address 12080 Old Seward Hwy. Anchorage, Ali 99515 Deep french El Shallow Trench �] Coed [:1 Mound D Other Phone Number of Bedrooms Soil Rating Total depth from original grade 5 .8 GPD/SF 11 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade Gravel depth beneath pipe Subdivision Block Lot 3 Ft, 8 Ft. Cherokee Ridge 1 Fill added above original grade Gravel length Township Range Section .5-1 Ft. 60 Ft. Gravel width Beds: Number of Lines Distance between lines S EPARATION DISTANCES Ft. Ft.. Septic Absorption ; Holding Sewer Total absorption area Number of trenches Dist. between trenches I Lift .station i "rank i Field f ; Tank i_ine _� _____.. 960 Ft` One Ft. 100' y1{)�}' ! �100` � �f r i � J'TANK9 Septic E] S.T.E.P. C] Holding El Other -_._ IManufacturer Capacity ( Anchorage Tank 1,500 Gal. 100 >100 NA i I\!AMaterial Number of compartments ->5°1(}` iNA I NA i Steel Two I NA Foundation( >5fi >10F NA ° l A LIFT TATO Manufacturer Capacity Curtain Drain I None i N ted ( Gal. s RemarksTrench Extended to 60'to Satisfy Pump on level at Pump off level at High water alarm at Requirement for Five Bedroom Norrie ir,. in. n. ..._ _ _ _ . 1,500 {gallon Septic Tank Placed. Pump make and model Electrical Inspections performed by PIPE € A T EI IAL House to tank D3034 rank to D3034 Installer drainfie(d White Raven Development, Inc. Drainfield F810 COrMT Inspector W. Roberts BENCH MARK (Assumed elevation) 100.0 ft Inspection 1" 7/24/1.6__._ r 7/24/16 Location and description 4rrt __.._m.. -- Garage Slab COMMUNITY DEVELOPMENT CEPA T 3E " APP OVAL Conditional Approval; Date 'Oeco .- 49 T .,«....... I ... `« Michael E. Anderson�01 «' 43Eit_E Approved .._. � '. ' ' ?` . _ Date .. t OPR. SS- � W, - _ - ...__ Inspection Report. 9-1-12.doc 0 00 co co (n E W UJ I O 00*0ql I'N"01-00S NT 0-0 :3 (D C:) ') 20 �V. U) 0%L Z < S 6- o LU 3"(39'CiLoos 0 'W99L 6 ovo E Lil C:) a) n 4— Lf) 0 cn 0 M 0 CN C) Li <--- Q, C5 01 C— D 0 w 3 n af .2- t— �2 Z 00 w CJ < Lli 0 00 co co (n E W UJ I O 00*0ql I'N"01-00S NT 0-0 :3 (D C:) ') 20 �V. U) 0%L Z < S 6- o LU 3"(39'CiLoos 0 'W99L 6 ovo E Lil C:) a) n M W cn 0 M 0 CT) w Li <--- < < 01 C— D 0 w 3 af .2- t— �2 Z 00 w CJ < Lli 0 o Li. w - > 00 w LL_! U) C)rT 0 00 co co (n E W UJ I O 00*0ql I'N"01-00S E 0 0 o �: LL 0 _j 8 ,41 0 —i co :3 0- 20 �V. U) 0%L Z < S 6- o LU 3"(39'CiLoos 0 'W99L 6 ovo E a) n C— D 0 3 00 0 m O:tl_ o Li. 00 L -Li 0 Ln 6:2 1- LL E 0 0 o �: LL 0 _j 8 ,41 0 —i co APO Mi : 0- 20 �V. U) 0%L Z < S 6- o LU 3"(39'CiLoos 0 'W99L 6 ovo E a) n Municipality of Anchorage DEVEOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage, AK 99519-6655 - 343-7904 On -Site Wastewater Disposal System or Well Inspection Report Permit Number: OSP161198 1.1 95,8 00 0 Page 3 of 3 PID No. 015-272-94 INU 1-71 UU1 JUVvdLt:�1 414 it I '+ 60' (Trench Length) PROFILE AS--BUILT- No Scale 49th ................ C111<_J11' 441CHAEL E..ANDERSON % No. CE -4381 kit MW On -Site Wastewater Disposal 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: OSP161198 Tax Code Number: 01527294000 Work Type: Septic Upgrade Permit Effective Dates: July 14, 2016 to July 14, 2017 Design Engineer: ANDERSON ENGINEERING Subdivision: CHEROKEE RIDGE Site Legal Address: CHEROKEE RIDGE LT 1 G:2635 Owner/Address: Hultquist Homes, Inc. 12580 Old Seward Highway Anchorage AK 99515 Site Mailing Address: 11448 ELMORE RD, Anchorage This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank N Privy All construction must be in accordance with: Lot Size in Sq Ft: 57246 Total Bedrooms: 5 N Private Well N Water Storage 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. Received Issued By MUNICIPALITY OF ANCHORAGE � eeik_"�)j Community Development Department 'Phone: 907-34 Development Services Division ` RUSH! + Fax: 90 i® d) On -Site Water & Wastewater Program J u you ON-SITE SEWER/WELL PERMIT APPLICATION �uL 1 � 13 a Parcel l.D.015-272-94 sy� Property owner(s) Hultquist Homes, Inc. Day phone t� « ni a Q L0 Mailing address 12580 Old Seward Highway Anchorage, AK 99515 Site address NHN Elmore Road Anchorage, AK 99516 Legal description (Sub'd., Block & Lot) Cherokee Ridge, Lot 1 Legal description (Township, Range & Section) Lot Size 57,246 Sq. Ft. Number of Bedrooms Five (5) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field E] Initial ❑ Single Family (SF) El ADU) Septic Tank ElUpgrade El(w/wo Duplex (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.a, , (Signature of property owner or authorized agent) Permit/Rush Fees: I$ q10,0 0 Waiver Fees: Date of Payment: Receipt Number: Permit No. Permit App_9-1-12.doc Date of Payment: Receipt Number: Waiver No. ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 FAX July 11, 2016 Municipality of Anchorage Development Services Department On -Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 1, Cherokee Ridge Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 1, Cherokee Ridge Subdivision intends to construct a new five - bedroom home on the lot. The recently completed septic system was only constructed for four bedrooms. We are therefore requesting a permit be issued for the reconstruction of the septic system to accommodate the home. The attached Site Plan and backup documentation identify the location and configuration of the existing well and proposed septic system along with the alternate site. Also identified on the plans are the existing wells in the area and septic systems on surrounding lots. No conflicts exist between the proposed septic system and well or septic systems and wells on adjacent lots. Drainage contours 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 areshown on the Site Plan. The test holes indicated silty gravel with sand (GM). The percolation rate of the soil was determined to be 6-15 minutes per inch. No groundwater was found during the placement of the test holes and none was noted during the monitoring period. An application rate of .8 gallons per day per square foot was used in the design of the absorption system. We are proposing to remove the existing 1,250 gallon septic tank and place a new 1,500 -gallon septic tank. The existing absorption trench will be extended to a total of 60' long by 3' wide by 8' effective depth absorption trench to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption trench will be 3' below the surface and the total depth will be 11'. 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. Lot 1, Cherokee Ridge Subdivision July 11, 2016 Page Two The ground surface on the lot in the area of the septic system slopes to the west at a shallow grade with some cross sloping. The new trench will be constructed 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 140' from all wells and any surface water and 10' 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. 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, Si� Fjj D 7 Michael E. Anderson, P.E. Attachments W�'e, " 49th _ MICHAEL E. ANDERSON O_ N 0 M C) 2 m D 0 iC7 m m M m Doo Nm 3 (f' 0 Z U m I \ 9& q< ,v 4 on ��vW M O 3 -5- �g h rn �' �m o mG m � cn i O 0% 00 ?s / a� M C) 2 m D 0 iC7 m m M m Doo Nm 3 (f' 0 Z U m I \ orRE ROAD \Elme Road �\ EL/MfJ \ \ q< ,v 4 on 2 M O 3 -5- h W 0 0 cn O 0% 00 N / N <+ N 6 A 0,2 I W rn0 m O; m orRE ROAD \Elme Road �\ EL/MfJ \ \ q< ,v 4 on 2 M O 3 -5- 0 p�3 0 0 O 00 �a �0— N / N N 6 0,2 rn0 � \ N CPq• ti orRE ROAD \Elme Road �\ EL/MfJ \ \ 2 -5- �n O 0 O N N N 6 I c I �e ® I � ao - 0 oCP o orRE ROAD \Elme Road �\ EL/MfJ \ \ 2 -5- 0 O N N 6 umeuur neumw C N 0 0 0 0 � 0 o 0 0 a (J ? C4 N Z 0 O=n K3 F O=ff rT, i 1I 11 0 1 m e''- O mm: o°Oa= Z 0 0000 c m 0 m om o � = v 0 ° _ 0 C 165.11' C! D o m o F o m no—arm N D D �_=O I N a y O X a ° ° 3 0 mm� T A O N 3=m III N mom n Z °O 's,m o wa �%�=u m a =. atOo 0 ° p N N Ma ° o 0 30 I -3 0 µ >0 3 Z o w F.O p J � N r N jw N >N3 I S O O 0 0 � EEO 0 y O C m O=n K3 F O=ff rT, i 1I 11 0 1 m e''- O mm: o°Oa= Z 0 0000 c m 0 m om o � = v 0 ° _ 0 C 165.11' 0'30' 150.00' M (li _ M I m y° °, D I a ° ° m mom ° �%�=u m atOo Ma SCD I >0 3 o w I r x >N3 I O 0 � EEO I iEE n 2 N \\\ F0 I mN O .Z0 7 -o o p E. a I •• 0 3 �� dp ° = Ap� m Nva< n I'\�\aw m KS asm IV J n ort• TFTI 1 I N � 0- N a co �a F� ° F9 o _ R "' m w Q 1 I m Z rn mw I / I I I I 0'30' 150.00' LOT 1, CHEROKEE RIDGE SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Five Bedroom Home Deep Trench System Pere. Rate: 12.6 Min./Inch 1,500 Gallon Septic Tank Application Rate: .8 GPD/SF 8' Drainfield Rock 5 Bedrooms X 150 GPD/.8 GPD/SF (Application Rate) = 937.5 SF Absorption Area 937.5 SF/16 SF/LF = 58.6 LF Trench Length THEREFORE: Remove the existing 1,250 gallon septic tank and place a new 1,500 gallon septic tank at the same location. Extend the existing absorption trench to a total length of 60'x 3' wide x 8' effective depth. Flow line in the trench to be placed at the same elevation as the existing line. The total depth of the trench shall be the same depth as the existing trench. Provide a minimum of 3' of cover over the distribution line and 4' over the septic tank. All components of the septic system must be 100' from all private wells in the area. Natural Backfill 2'6" Geotextile Fabric 6, :0:: 4" Perforated PVC (Holes Down) M 3' Drainfield Rock TYPICAL DEEP TRENCH SECTION -••.� (NO SCALE) NOTE: Grade Area Over Trench to Drain Away. Minimum 6' Separation From Bedrock. 49tH Minimum 4' Separation From Groundwater. � 31.E :............... Minimum 100' Separation From Wells in the Area. MCNAEL E. ANDERSON Minimum 100' Separation From Surface Water or Streams. ���; ?:, No. CE4391 ,•'A Municipality of Anchorage On -Site Water and Wastewater Program • (907) 343-7904 Page of ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP161013 PID Number: 015-272-94 Dwelling: 0 Single Family (SF) ❑ Duplex (D) ❑ Multiple (SF and/or D) Project: 0 New ❑ Upgrade Name: White Raven Development, Inc. ABSORPTION FIELD N Deep Trench ❑ Shallow Trench ❑ Bed ❑ Mound Address 12580 Old Seward Hwy. Anchorage, AK 99515 ❑ Other Phone Number of Bedrooms Soil Rating Total depth from original grade 4 .8 GPD/SF 11 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade 3 Ft. Gravel depth beneath pipe 8 Ft. Subdivision Block Lot Cherokee Ridge 1 Fill added above original grade ,rj-1 Ft. I Gravel length 50 Ft. Township Range Section Gravel width 3 Ft. Beds: Number of Lines Distance between lines Ft. SEPARATION DISTANCES To Septic Absorption Lift Station Holding Sewer Total absorption area Number of trenches Dist. between trenches I From Tank Field Tank Line 800 Ftz One Ft. Well >100' >100' >100' >75' >25' TANK IN Septic ❑ S.T.E.P. ❑ Holding ❑ other Manufacturer Anchorage Tank Capacity 1 1,250 Gal. Surface Water >100, >100' NA NA Material Number of compartments Lot Line >5' >10' NA NANA Steel Two Foundation >5' >10' NA NA LIFT STATION Manufacturer Capacity Curtain Drain None I Noted Gal. Remarks 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 drainfieldTankto D3034 White Raven Development, Inc. Drainfleld-R 0 C0/MT Inspector W. Roberts BENCH MARK (Assumed elevation) 100.0 ft Inspection 1d 5/12/16 5/12/16 Location and description da es: 2otl aro 4m Garage Slab COMMUNITY DEVELOPMENT DEPARTMENT APPROVAL ��"Q�� �•�� OF '!4 Rot Conditional Approval: Date = �`P• S�®�® Poo,01 .................................. f�-.MICHAEL E. ANDERSON :C- 0 J : CE -4381 �V'P,fOFr Arove Pp i . ✓� Date��� 100 �'' Inspection Report_9-1-12.doc I N 0 O J d' O) nN M N ,00 OS L 3„02,0 L.00S O O O J Nco ° I m z — N I OI � �I 0 a 0 z o � n �OFM6Da E CO :a of ci v of iri 6 O W cam+] N / m a uN rn I i0 C v ill i7 (/) C LL CO _ I a M V t0 M N M \ m O ma- m�joo \ `= mw, I N V lA N \ 3 0 m0 M I nm UU�� ® \\LL QUJ Y N Z', w QF 0 O N v Z U y L.L 00 I N �WQO LTJ Mv a +. m Lil 00 I dam- a 0a)m I JN x g > co O co ~ p ?: ryco cm L, ma) _ m o r 0 o d c `m I a I I I I I M I O LoL ------------------- a cn — o JL -99L 3«99,9 LOOS 0 E a M 0 N z 00 L.Li oo L.L.I O m U V 1 Q z Q 0 II W J Q U Municipality of Anchorage DEVEOPMENT SERVICES DEPARTMENT 4700 South Bragaw Street Anchorage, AK. 99519-6655 - 343-7904 On -Site Wastewater Disposal System or Well Inspection Report Permit Number: OSP161013 9O W Page 3 of 3 PID No. 015-272-94 90.5- LF-_ Drainfield Rock 82.5 ,e,— 76.5 50' (Trench Length) PROFILE AS -BUILT No Scale � 90.5 82.5 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT 4700 BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: _ DATE: 5/12/16 PARCEL ID#: DEPTH (feet) 1 � OB/OG 2 PROJECT No.: TECHNICIAN: TEST HOLE lA 3 Silty Gravel GM 4 5 6 B.O.H. 7 8 9 W. Roberts SLOPE SITE PLAN See Site Plan LO READING WAS GROUND WATER ENCOUNTERED? No NET TIME (MINUTES) DEPTH TO WATER (INCHES) IF YES @ WHAT DEPTH? 11 TEST HOLE PRESOAKED PRIOR TO TESTING: 0 DEPTH OF WATER AFTER MONITORING: O It— 1 2:08 DATE OF MONITORING: I DATE READING GROSS TIME (MINUTES) NET TIME (MINUTES) DEPTH TO WATER (INCHES) NET DROP (INCHES) 5/12 TEST HOLE PRESOAKED PRIOR TO TESTING: 1 2:08 0.75' 2 2:38 30 2.88^ 2.13" 3 2:40 0.88° 4 3:10 30 3.00° 2.12" 5 3:11 0.75^ 6 3:41 30 2.88" 2.13" PERCOLATION RATE: 14.2 (MIN/INCH) PERC. HOLE DIA. 6 (INCHES) TEST RUN BETWEEN: 4 FT. and 5 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST COMPLETED TO VERIFY ABSORPTIVE CHARACTERISTICS OF SOIL LENSE. 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: 6/24/2016 1 Alpine Drilling & Enterprises Well Log Permit Number: #SW 161013 Date of Issue: 2-1-16 Parcel Identification Number: 01527294000 Date Started: 2-15-16 Date Completed: 2-17-16 Is well located at approved permit location? x Yes ❑ No Legal Description: Cherokee Ridge Lot 1 Property Owner Name & Address: Hultqui t Homes, Inc 12580 Old Seward Highway Anchorage, Alaska 99515 Borehole Data: Soil Type, Thickness & Water Strata Depth (ft) From To Method of Drilling x air rotary ❑ cable toot Casing type: steel stick-up 0 2 Wall Thickness:.250 inches organics & sill silt 2 3 3 4 Diameter. 6 inches Depth: 168 feet Liner Type: Diameter: ^ inches Depth: _ feet gravelly silt 4 20 Casing stickup above ground: 2 feet Static water level (from ground level): 147 feet cobblygravel 20 35 silty cobbly gravel 35 58 Pumping level: 167 feet after gravelly silt 58 95 2 hours pumping 7 gpm Recovery Rate: 7 gpm silty gravel 95 145 Method of Testing: air li r silt 145 160 Well Intake Opening Type: silty gravel 160 165 x Open End ❑ Open Hole silty water sand & gravel 165 168 ❑ Screened Start _ feet Stopped feet ❑ Perforations Start _ feet Stopped _ feet Grout Type: bentonite granules Volume: 2 b¢s Depth: Start 0 feet Stopped ? feet Pump: Intake Depth _ feet Pump size _ hp Brand Name Well Disinfected Upon Completion? x Yes E] No Method of Disinfection: chlorine tablets WATERUALITY TESTING WNorm IN a q C01.1100mi. Nt Tme 5- 7 R Comments: Arsenic IV ug/l Well Driller: Alpine Drilling &Enterprises PO Box 110496 Anchorage AK 99511 Development Services Department Building Safety Division On -Site Water & Wastewater Program 4700 Elmore Road P.O. Box I96650 MadrBegich Anchorage, AK 99507 Mayor wwwmeorofamlte (907)343-7904 Pump Installation Lo Well Drilling Permit Number: SW MOO Date ofIssueg� Parcel Identification Number: 015 Alai Le cqpuon rragerI OwnerI saptine �i �t`�i 1.1610 old teiPtl;� Pump Installation Date: D i f I Zo Pump Intake Depth Below Top of Wen casing; 1W feet Pump Manufacturer's Name: {✓f �ti� t [ W' Pump Model: Z A 601 Pump Size* hp Pidess Adapter Burial DepthAA feet Pitless Adapter Manufacturer's Name: Pittess Adapter Installer: ttt Well Disinfected Upon Completion? K Yes ❑ No Method of Disinfection: Comments: , Pump Installer Name: Aarow Pump & Well Service P.O. Box 110496 Anchorage, AK 99511-0496 Attention: The pump installer shalt provide a pump installation log to the DSD within 30 days of pump installation. Please save for your engineer. This is needed for your COSA. 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: OSP161013 Tax Code Number: 01527294000 Work Type: WellSeptic Initial Permit Effective Dates: February 01, 2016 to January31, 2017 Design Engineer: ANDERSON ENGINEERING Subdivision: CHEROKEE RIDGE Site Legal Address: CHEROKEE RIDGE LT 1 G:2635 Owner/Address: HULTQUIST HOMES INC 12580 OLD SEWARD HIGHWAY ANCHORAGE AK 995153506 Site Mailing Address: 11448 ELMORE RD, Anchorage Lot Size in Sq Ft: 57246 Total Bedrooms: 4 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. [approval. cial Provisions: proposed system is in a different soil stratum than the strata that was tested. The Engineer ds to do an additional percolation test in the upper strata prior to the construction of the septic . Please submit stamped and signed results with the As -built Inspection Report. If the results uire a design change, construction of the system willstop pending On -Site review and AMC 15.65.060.B.2 Received Issued By: _.ZI(hW Date: 8 9 MUNICIPALITY OF ANCHORAGE �\ JNV [ i� Community Development Department Phone: 90 904 5 Development Services Division Fax: 907-3 97s 6 9 On -Site Water & Wastewater Program ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 015-272-94 Property owner(s) Hultquist Homes, Inc. Day phone Mailing address 12580 Old Seward Highway Anchorage, AK 99515 Site address NHN Elmore Road Anchorage, AK 99516 Legal description (Sub'd., Block & Lot) Cherokee Ridge, Lot 1 Legal description (Township, Range & Section) Lot Size 57,246 Sq. Ft. Number of Bedrooms Four (4) APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field 0 Initial Fi Single Family (SF) El (w/wo ADU) Septic Tank E Upgrade ElDuplex (D) ElHolding Tank ElRenewal 13 Multiple Dwellings ❑ Privy ❑ (SF and/or D) Private Well Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE I WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. Z owner or authorized agent) Permit/Rush Fees: S(oI -t A IS = 7tq Waiver Fees: _ Date of Payment: I ht!s-) (o Date of Payment: Receipt Number: CA Receipt Number: Permit No. 0001 to Waiver No. Permit App 9-1-12.doc January 14, 2016 Municipality of Anchorage Development Services Department On -Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 1, Cherokee Ridge Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 1, Cherokee Ridge Subdivision intends to construct a new four- 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. Also identified on the plans are the existing wells in the area and septic systems on surrounding lots. No conflicts exist between the proposed septic system and well or septic systems and wells on adjacent lots. Drainage contours 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 hole placed on the lot in the area of the absorption trench and alternate site is shown on the Site Plan where it was surveyed in and not as shown on the test hole log. The test hole indicates silty gravel with sand (GM). The percolation rate of the soil was determined to be 12.6 minutes per inch. No groundwater was found during the placement of the test holes and none was noted during the monitoring period. An application rate of .8 gallons per day per square foot was used in the design of the absorption system. We are proposing to place a new 1,250 -gallon septic tank and a 50' long by 3' wide by 8' effective depth absorption trench to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption trench will be 3' below the surface and the total depth will be 11'. 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. Lot 1, Cherokee Ridge Subdivision November 21, 2014 Page Two The ground surface on the lot in the area of the septic system slopes to the west at a shallow grade with some cross sloping. The new trench will be constructed 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' 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. 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, Michael E. Anderson, P.E. Attachments �►�arrrq s n�e EA J, rn�• ,� cE� ��r r P. E h •'�o �� io •� � 4 � & � YOi• rt IN _ slit �Q� g� r I 3 3 I m0 i 3 r o I 0 I o I 3 -t) Ln o C7 mo N D 0 s 0 m I I/ ® am rri Ix p 0 / / u N m ® �I _ T o c C I \ / �j O j I CF I I ro Iq I I r Q I ��,,_-,,� it Ix� � .�+• I N J+ I m r- wacQ r I o 0 \ a kA a a \an R . / EL/MORE ROAD 4 so �O �y � N •"' rt � rt rt rs ? 7 W N 0 anon Z 00 �, 0 on art�o m m wow 3��� 00 AZO � i m .TO V N �No o �mE F o c m m o 3 O 0 o�o=r g C) N im 1, r 165.11' 1 N -,R to F- 3 cnm I O mo`" flog x a � l 1 fTTil i Im �m � - a na ( -o ® m a � I I ' I / I 10'30' 150.00' LOT 1, CHEROKEE RIDGE SUBDIVISION DESIGN FACTORS: SYSTEM REQUIREMENTS: Four Bedroom Home Deep Trench System Perc. Rate: 12.6 Min./Inch 1,250 Gallon Septic Tank Application Rate: .8 GPD/SF 8' Drainfield Rock 4 Bedrooms X 150 GPD/.8 GPD/SF (Application Rate) = 750 SF Absorption Area 750 SF/16 SF/LF = 46.8 LF Trench Length THEREFORE: Construct a 50' Long x T Wide x 8' Effective Depth Absorption Trench at the Location Shown. Flow Line Elevation in Trench to be 3' Below Original Ground Surface. Total Depth to be 11' Below EAsting Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption Trench. Maintain 100' Separation from Wells in the Area. Natural Backfill 2'6" Geotextile Fabric 6" O 4" Perforated PVC (Holes Down) I 3' Drainfield Rode TYPICAL DEEP TRENCH SECTION (NO SCALE) NOTE: Grade Area Over Trench to Drain Away. : t� 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.- i} MICHAELE.ANMR N SOILS LOG - PERCOLATION TEST TEST HOLE 1 SLOPE J OR ORGANICS 2 3— L GM TIGHTSILTY GRAVEL 4- 5 GRADUAL SOIL X INTERFACE TH 7 8 9 — Al Ij 10 — 7. 11 GM/SM SILTY SAND 4 12 AND GRAVEL 2 13 WAS GROUND WATER SLOPE 14 ENCOUNTERED? Y 15 IF YES, AT WH TH DEPTH? NONE' X 16 17BOH DEPTH TO WATER AFTER MONITORING? NONE' 18 - DATE: 4/21/2014 DATE PERFORMED: 4114114 READING DATE CLOCK WATER TIME NETTIME LEVEL NET DROP READING 1 4114114 12:36 — 6.67 2 1:06 30 MIN 8.34 2.77 3 1:08 --- 5.42 4 1:38 30 MIN 7.90 2.48 5 1:41 5.42 6 2:11 1 30 MIN I 7.8T 2.39 PEROLATION RATE 12.6 (minlinch) PERC HOLE DIAMETER 6 inches TEST RUN BETWEEN 5.5 FT AND 6.5 FT COMMENTS: Test hole excavated by Brian T. Harten. Prec hole was presoaked. Perc test ran for at least 1.5 hours. Last three readings reported. Bottom of pert hole in GM/SM. Test performed in representative soil. PERFORMED BY: Steven R. Pannone, P.E. I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDLINES IN EFFECT ON THE DATE OF THIS TEST. NOTES: PANNONE ENG SVC, LLC ?�Vk Date SOILS LOG P.O. BOX 102954 ANCHORAGE, AK 99510 5/27/2014 Scale PHONE (907) 272-8218 FAX (907) 272-8211 w .... .. NTS P.I.D. NO T12N R3W, SEC 21 N2SE4SE4NE4 BRIAN T. HARTEN ELMORE ............ ............ Steven R. Panno ' ne CE 149 'ef-5-272-222 PERMIT NO. X Sheet SOILS LOG ANCHORAGE, AK 99516 ...... k\�"q?OFESS 2 OF 5 � -- / .1 Cd n MUWC�PAUTY OF ANCHORAGE A Development Services Department Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 Certificate of On -Site Systems Approval Parcel I.D. 015-272-94 Expiration Date: I" P— Z 0 Z O 1. GENERAL INFORMATION Complete legal description -CHEROKEE RIDGE LOT 1 Location (site address) 11448 ELMORE ROAD, ANCHORAGE, AK 99516 Current property owner(s) Mailing address Real estate agent & STEVEN SAUDER Day phone 11448 ELMORE ROAD, ANCHORAGE, AK 99516 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) Day phone 3. NUMBER OF BEDROOMS: 5 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Private Well ® Private Septic 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 $ Ll 19,56 ( 19) Waiver Fee $ Date of Payment // / -)- d'q 0 Date of Payment Receipt Number b I q o4 5 Receipt Number COSA# 0SC),0 1`f0-3 Waiver # COhGi��rUna $21750 Gc�t/�IJ P°"� g/Itlzow 'rW14i* 31tvis 1� 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 FIRST WATER CONSULTING Phone 907-350-9566 Address 13030 SUES WAY, ANCHORAGE, AK 99516 Engineer's Printed Name CURTIS HUFFMAN, PE Date 8/1/2020 Comments: This investigation was completed in compliance with MOA guidelines, regulations, and best industry practices / methods. The assessment of the condition of the well and septic applies only to the conditions as of the day tested. The flow and absorption rates may change due to subsurface conditions that may not be observed from the surface, changes in land use, local soil characteristics, groundwater levels that may fluctuate during the year, quality of construction (workmanship & materials), the water usage of the family being served by the system and maintenance. The operational life of all well and septic systems are subject to these various and dynamic characteristics and are outside the control of the evaluator of the ` well and septic system. Therefore, any estimate of how long a system will function satisfactory /��g�Q: • • . • •!1•,9 ��� for current or future occupants or guarantee that no unseen encroachments, deficiencies or _ J discrepancies exist can be given by First Water Consulting & FWB * • 9 TH ....:* r ;V1.� 6. DSD SIGNATURE %r Curtis Huffman / System #1 Approved for _ bedrooms ����F,q�s••. CE 128991 System #2 Approved for bedrooms TF�F�pROFES5O�' Disapproved Conditional approval for bedrooms, with the following stipulations: R,e bA,(y-Q S Vim► c S PaDTI G WAST'=OVER ? � )TSER\Arl Original Certificate Date:'yI�I�`�% Z -U 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 Legal Description: CHEROKEE RIDGE LOT 1 Parcel ID: 015-272-94 If more than 1 septic system on lot: COSA Checklist # _of A. WELL DATA ® Well log is filed with Onsite (or attached) Date drilled 2/17/2016 Total depth 168 ft Cased to 168 ft ® Sanitary seal is functioning correctly ® Wires are properly protected Casing height (above ground) 24+ in Date of flow test for COSA 7/22/2020 Static water level at beginning of test 161 ft. Well production at time of test 5.9 gpm Comments B. TANK DATA Age of tank(s) 4 years Tank type/material SEPTIC / STEEL Measured operating fluid level in septic tank 49" ® Standpipes/foundation cleanout per record drawing Date of pumping 7/22/20 D. ABSORPTION FIELD DATA Which system tested (date installed) 7/24/2016 ® ALL standpipes present per record drawing Total measured depth from grade 12 ft (max) Measured depth to pipe invert from grade 4 ft (min) ❑ N/A — pressurized field ® Monitor tubes go to bottom of effective. If not, state depth into effective Structure served by this system _ Water storage tank volume NA gallons Well disinfected for coliform test? ❑ Yes ® No ® Coliform bacteria is Negative Nitrate 4.34 mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ® Arsenic less than MRL (ND) WE Collected by « y° Date of Sample 7/22/2020 -- C. LIFT STATION ❑ Required maintenance completed Age of lift station _ years Lift station material Comments: See attached letter. Adequacy test date 7/24/2020 Results Z Pass For 5 bedrooms Fluid depth prior to test 77 in Water added 1070 gal New depth 89 in Elapsed time 1440 min ® Code -required soil cover over field Final fluid depth 79 in ❑ System presoaked Absorption rate 750 gpd (Required if vacant for greater than 30 days prior to Any rejuvenation treatment (past 12 months) N date of test) If yes, enter date Gallons introduced gallons FWES Comments/Deficiencies: See attached letter — field operating in top 2' of the 8' effective depth. � ,.9 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' ® Yes if No ft Private Sewer/Septic Line > 25' ® Yes if No Absorption Field on Lot > 100' ® Yes if No ft Holding Tank > 100' ® Yes if No Neighboring Absorption Fields > 100' if No ft Animal Containment > 50' ® Yes if No ® Yes if No ft ft If septic tank is under driveway comment below 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' ® Yes if No ft Surface Water > 100' ® Yes if No Property Line > 5' ® Yes if No ft Wells on Adjacent Lots: ® Yes Absorption Field > 5' ® Yes if No ft Private Wells > 100' ® 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 _ ft Wells on Adjacent Lots: Water Main > 10' ® Yes if No ft Private Wells > 100' ® Yes if No —ft Water Service Line > 10' ® Yes if No ft Community Wells > 200' ® Yes if No Surface Water > 100' ® Yes if No ft F. ENGINEER'S COMMENTS See attached letter regardinq septic tank / deck supports and field. 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. .... .... ..... r • Curtis Huffman CE 128991 ,• w� .8/3/202,0. t ��� pROfESS1��A ft ft ft ft ft ft ft ft MUNMWAUTY F Development Services Department On -Site Water & Wastewater Section Parcel I.D. 015-272-94 Certificate of On -Site Systems Approval 1. GENERAL INFORMATION Complete legal description -CHEROKEE RIDGE LOT 1 Phone: 907-343-7904 Fax: 907-343-7997 Expiration Date: 1- P- Z 0 Z 0 Location (site address) 11448 ELMORE ROAD, ANCHORAGE, AK 99516 Current property owner(s) LISA & STEVEN SAUDER Day phone Mailing address Real estate agent 11448 ELMORE ROAD. ANCHORAGE. AK 99516 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) Day phone 3. NUMBER OF BEDROOMS: 5 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Private Well ® Private Septic Water Storage ❑ Holding Tank ❑ Community Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ Waiver request for: Distance: Received by: COSA to be released to the engineer, unless otherwise requested by the engineer. Date: COSA Fee $ a, 5 U �C� ! �' `�> Waiver Fee $ Date of Payment y D'q 0 Date of Payment Receipt Number I q OS 5 Receipt Number COSA # a SC,� a 1 `-J 0-3 Waiver # CO�G���ivna� $21750 CvL/14,_) P°`'d S/I(J2ow rWA;-Pi* 3 1 t � SIS 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 FIRST WATER CONSULTING Phone 907-350-9566 Address 13030 SUES WAY, ANCHORAGE, AK 99516 Engineer's Printed Name CURTIS HUFFMAN, PE Date 8/1/2020 Comments: This investigation was completed in compliance with MOA guidelines, regulations, and best industry practices / methods. The assessment of the condition of the well and septic applies only to the conditions as of the day tested. The flow and absorption rates may change due to subsurface conditions that may not be observed from the surface, changes in land use, local soil characteristics, groundwater levels that may fluctuate during the year, quality of construction (workmanship & materials), the water usage of the family being served by the system and maintenance. The operational life of all well and septic systems are subject to these various and dynamic characteristics and are outside the control of the evaluator of the well and septic system. Therefore, any estimate of how long a system will function satisfactory for current or future occupants or guarantee that no unseen encroachments, deficiencies or discrepancies exist can be given by First Water Consulting & FWCS 6. DSD SIGNATURE System #1 Approved for System #2 Approved for Disapproved Conditional approval for _ bedrooms bedrooms z 4��11r . g�P•��TA A *.4..- ..�� • • ' Curtis Huffman• • •' • •� It�'F,•. CE 128991 •.•���� dT��• • .Q/1/2Q20'���� lliF�PROFESSOX� S- bedrooms, with the following stipulations: e�OfI C 4 WATER AN9 M!:: J0 WAST'_vt'ATER z^ / J/JJ',f.4SER. \G , B Original Certificate Date: 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 Legal Description: CHEROKEE RIDGE LOT 1 Parcel ID: 015-272-94 If more than 1 septic system on lot: COSA Checklist # _of A. WELL DATA ® Well log is filed with Onsite (or attached) Date drilled 2/17/2016 Total depth 168 ft Cased to 168 ft ® Sanitary seal is functioning correctly ® Wires are properly protected Casing height (above ground) 24+ in. Date of flow test for COSA 7/22/2020 Static water level at beginning of test 161 ft. Well production at time of test 5.9 gpm Comments B. TANK DATA Age of tank(s) 4 years Tank type/material SEPTIC / STEEL Measured operating fluid level in septic tank 49" ® Standpipes/foundation cleanout per record drawing Date of pumping 7/22/20 D. ABSORPTION FIELD DATA Which system tested (date installed) 7/24/2016 ® ALL standpipes present per record drawing Total measured depth from grade 12 ft (max) Measured depth to pipe invert from grade 4 ft (min) ❑ N/A — pressurized field Structure served by this system Water storage tank volume NA gallons Well disinfected for coliform test? ❑ Yes ® No ® Coliform bacteria is Negative Nitrate 4.34 mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ® Arsenic less than MRL (ND) WES Collected by-= Date of Sample 7/22/2020 -- C. LIFT STATION ❑ Required maintenance completed Age of lift station _ years Lift station material Comments: See attached letter. Adequacy test date 7/24/2020 Results M Pass For 5 bedrooms Fluid depth prior to test 77 in Water added 1070 gal New depth 89 in ® Monitor tubes go to bottom of effective. If not, state Elapsed time 1440 min depth into effective ® Code -required soil cover over field Final fluid depth 79 in ❑ System presoaked Absorption rate 750 gpd (Required if vacant for greater than 30 days prior to Any rejuvenation treatment (past 12 months) N date of test) Gallons introduced gallons If yes, enter date FRES Comments/Deficiencies: See attached letter — field operating in top 2' of the 8' effective depth. - E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) ® Yes Septic Tank/Lift Station on Lot > 100' ft Surface Water > 100' Community Sewer Manhole/Cleanout > 100' ® Yes if No ft ® Yes if No ft Neighboring Tank > 100' ® Yes if No ft Private Sewer/Septic Line > 25' ® Yes if No ft Absorption Field on Lot > 100' ® Yes if No ft Holding Tank > 100' ® Yes if No ft Neighboring Absorption Fields > 100' Community Wells > 200' ® Yes if No ft Animal Containment > 50' ® Yes if No ft ® Yes if No ft From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' Manure/Animal Excreta Storage > 100' if No Community Sewer Main > 75' ® Yes if No ft ® Yes if No ft From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' ® Yes if No ft Surface Water > 100' ® Yes if No ft Property Line > 5' ® Yes if No ft Wells on Adjacent Lots: Absorption Field > 5' ® Yes if No ft Private Wells > 100' ® Yes if No ft Water Main > 10' ® Yes if No ft Community Wells > 200' ® Yes if No ft 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 _ ft Wells on Adjacent Lots: Water Main > 10' ® Yes if No ft Private Wells > 100' ® Yes if No —ft Water Service Line > 10' ® Yes if No ft Community Wells > 200' ® Yes if No Surface Water > 100' ® Yes if No ft F. ENGINEER'S COMMENTS See attached letter regarding septic tank / deck supports and field. G. ENGINEER'S CERTIFICATION 1 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. OF A TH .... ....•.. • Curtis Huffman CE 128991 •.���� �F��'PROFEWOL� � 0 F-int CONSULTING . 13021 Montego Circle, Anchorage, AK 99516 907-350-9566 / firstwaterAK(a,gmail.com August 5, 2020 Municipalities of Anchorage On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 RE: CHEROKEE RIDGE LOT 1— ENCROACHING DECK SUPPORTS TO TANK & TESTING The edge of the septic tank was measured at approximately 2" to the edge of the 4" treated wood deck support. The tank interior was visually inspected via camera by One Stop Services to verify integrity and no damage or penetration was observed. As of the date this letter, Mike N. Anderson is to drive or install deck pilings to the tank bottom elevation prior to closing. We will verify this has been completed and notify you prior to COSA issuance. Septic adequacy testing and visual inspection note: Water was initially added to the field cleanouts during the commencement of the adequacy test. However water immediately began to back into the tank, even though fluid levels in the monitoring tubes were below the field lateral. Therefore the adequacy test was conducted via the monitoring tubes with no backing into the tank. Elevations were checked between the field and post tank inverts and were determined to be as noted on the inspection report. Subsequently, we had the field lateral line jetted / cleaned. The field is operating in the top 2' of the 8' effective depth (80%+/- saturated). Please contact us if you have any questions. Respectfully, Curtis Huffman, P.E. Attachments: COSA Submittal 0 First r C O N S U L T I N G rt� ;C ,tC 13021 Montego Circle, Anchorage, AK 99516 907-350-9566 / firstwaterAKngmaii.coin August 8, 2020 Municipalities of Anchorage On -Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 RE: CHEROKEE RIDGE LOT 1— ENCROACHING DECK SUPPORTS TO TANK Per the previously submitted letter — the encroaching deck supports to the existing septic tank are to be addressed by Mike N. Anderson, PE. Please see attached proposal. There is currently no immediate public health or safety issues based on visual observations and due to contractor availability request a Conditional COSA be issued at this time to facilitate the pending closing. We will submit final COSA once completed. If you want to inspect the installation of the deck supports, please contact us or Mike directly. Please contact us if you have any questions. Respectfully, Curtis Huffman, P.E. Attachments: Mike N. Anderson Proposal h A'1 ® Municipality of Anch � ��� 2 gyp`' ° > G On -Site Water and Wastewater Pro a lv (907) 343-7904q S A F E T Y ^ 62L � 0 LLa66 Certificate of On -Site Systems Approval Parcel I.D. 015-272-94 Expiration Date: q-2-14-1�o 1. GENERAL INFORMATION Complete legal description Cherokee Ridge, Lot 1 Location (site address) 11448 Elmore Road Anchorage, AK 99516 Current Property owner(s) Hultquist Homes, Inc. Day phone 522-3204 Mailing address 12580 Old Seward Highway Anchorage, AK 99515 Real Estate Agent 2. TYPE OF DWELLING: FxFi Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: Four Day phone 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Individual Well F.71 Individual 0 Individual Water Storage ❑ Holding Tank ❑ Community Class Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ WaiverNariance request for:, Received by: I/ Ul V—V 'VI U 1X/ Date: W 2�W- /(a COSA to be released to the engineer, unless oth mise requested by the engineer. COSA Fee $ L 1 /. 0 Waiver Fee $ Date of Payment (a /'AL ilm Date of Payment Receipt Number ®(f ��$�� Receipt Number COSA# [lJLl6(JIi7 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 Address P.O. Box 240773 Anchorage, AK 99524 Engineer's Printed Name Michael E. Anderson, P.E. Phone 522-7773 Date�_ ®PSE° OF °!� 0 svarw 49TH�� P�4 ...._ -_'.. e n ear ® 6. DSD SIGNATURE. b�- � L� c'4" °°.° System #1 Approved for bedrooms �g c MICHAEEL 843;ER50 :��ID System #2 Approved for bedrooms Disapproved®a9%nVA%����® Conditional approval for bedrooms, with the following stipulations: By:. `� t Original Certificate Date: �- 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 COSAbluesheel f S c 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: Cherokee Ridge, Lot 1 Parcel ID: 0 15-272-94 A. WELL DATA Well type Private If A, B, or C provide PWSID # Well Log (YIN) Y Date completed 2/17/16 Sanitary seal (YM) Y Wires properly protected (Y/N) Y Total depth 168 ft. Cased to 168 ft. Casing height (above ground) >18 in. Date of test Static water level FROM WELL LOG 2/17/16 147 ft. Well production 7 g.p.m. WATER SAMPLE RESULTS: Coliform 0 colonies/190 mL Nitrate 5.79 mg/L Arsenic ND ug/L Date of sample: 6/10/16 B. SEPTIC/HOLDING TANK DATA Tank Type/Material Septic/Steel Tank size 1,250 gal. Number of Compartments 2 Foundation cleanout (Y/N) Y Depression over tank (Y/N) N Date of pumping New Const. Pumper C. ABSORPTION FIELD DATA AT INSPECTION ft. a8 Collected by: And. Engineering Date installed 5/12/16 Cleanouts (Y/N) Y High water alarm (Y/N) N Date installed 5/12/16 Soil rating (g.p.d./ftZ or ftz/bdrm) .8 GPD/SF System type Deep Trench Length 50 ft. Width 3 ft. Gravel below pipe 8 ft. Total depth 11.9 ft. Eff. absorption area 800 ftZ Monitoring tube Y Depression over field N Date of adequacy test New Const. Results (PasslFail) For -Y— 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.) (Y/N & type) N If yes, give date D. LIFT STATION Date installed "Pump on" level at Datum Size in gallons _ in. "Pump off' level at Cycles tested _ E. SEPARATION DISTANCES WELL ON LOT TO: Septic tank/lift station on lot >100, Absorption field on lot >100, Public sewer main >75' Sewer /septic service line >25' Animal containment areas >50' SEPTIC/HOLDING TANK ON LOT TO: >5' Building foundation Property line >5f Water main >10' Water service line >10 _ Manhole/Access (Y/N) in. High water alarm level at in. Meets alarm & circuit requirements? On adjacent lots On adjacent lots >100, >100, Public sewer manhole/cleanout >100, Holding tank >75' Manure/animal excrete storage areas >100, T Wells on adjacent lots >100' ABSORPTION FIELD ON LOT TO: Property line >10, Building foundation >10, Water Service line >10, Curtain drain None Noted F. COMMENTS Surfacewater >100' Wells on adjacent lots >100' G. ENGINEER'S CERTIFICATION t 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 Michael E. Anderson, P.E. _ Date 6/24/2016 COSA brown sheet 10-10-12.doo Absorption field >51 Surface water >100, Water main >10' Driveway, parking/vehicle storage >10' E 4; WW\ 4AEL E. ANDERSON 0 JW CE -4381 L -zye-16 c; ''RaFES5l0�p��� Municipality of AnchorageED , Q Development Services Department , Building Safety Division I i4,FE7Y' e On -Site Water and Wastewater Program 4700 Elmore Street P.O. Box 196650 Anchorage, AK 99519-6650 www.muni.org/onsite (907)343-7904 Nitrate Advisory Certificate of On -Site Systems Approval # OSC161252 A Certificate of On -Site Systems Approval inspection and test of potable water was recently conducted on the well water supply on Block , Lot 1 of Cherokee Ridge subdivision. This inspection revealed a nitrate concentration of 5.79 milligrams per liter (mg/L) was reported for the property's well water sample. The Environmental Protection Agency (EPA) has established a maximum contaminant level (MCL) of 10.0 mg/L for public drinking water systems. While private wells are not subject to this regulation, EPA standards are based on existing health information and can therefore be used to gauge the relative quality of water from private wells. Please see the attached "Nitrate Fact Sheet" for important information regarding nitrate. 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