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HomeMy WebLinkAboutKNIK HEIGHTS BLK H LT 7Onsite File Knik Heights Block H Lot 7 #017-372-07 Sep 06 22 06:42p Anchorage Well & Pump Ser 9072430742 p.1 MUNICIPALITY OF ANCHORAGE Development Services Department �3 Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 Pump Installation Log Well Drilling Permit Number: Parcel Identification Number: 017 - 372 - 07 Legal Description KNIK HEIGHTS Date of Issue: Block Lot Property Owner Name & Address: BRICK & BIRCH HOMES LLC H 7 4809 W 88TH AVENUE ANCHORAGE, AK 99502 Pump Installation Date: oe - 31 - 2022 Pump Intake Depth Below Top of Well Casing: 290 feet Pump Manufacturer's Name: Pump Model: BERKELEY B7P4MS10231-02 Pump Size: 1.00 hp Pitless Adapter Burial Depth: 10 Pitless Adapter Manufacturer's Name: Pitless Adapter Installer: feet MARTINSEN Well Disinfected Upon Completion? 1KYes Method of Disinfection: PELLETS Comments: ❑ No Pump Installer Name: _ ANCHORAGE WELL & PUMP SERVICE Company: 7640 KING STREET p y ANCHORAGE, AK 99518 Mailing Address: 907-243-0740 City: State: Zip: Attention: The pump installer shall provide a pump installation log to On-site within 30 days of pump installation. ,rmCv uuiu4i lo) Municipality of Anchorage On-Site Water and Wastewater Section • (907) 343-7904 Page 1 of 2 ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP211331 PID Number: 017-372-07 Dwelling: 0 Single Family (SF) ❑ with ADU ❑ Duplex (D) ❑ Two Single Family Project: ■❑ New ❑ Upgrade Name BRICK & BIRCH HOMES ABSORPTION FIELD ❑� Deep Trench ❑ Wide Trench ❑ Bed ❑ Mound Site Address 13080 BAINBRIDGE ROAD ❑ Other Phone Number of Bedrooms Soil Rating depth from original grade 5 0.8 GPD/SF JTotal 11 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade 3.0 Ft.8 Gravel depth beneath pipe Ft. Subdivision Block Lot KNIK HEIGTHS H 7 Fill added above original grade --0.5-1.0 Ft. Gravel length 60 Ft. Township Range Section Gravel width 2.5 Ft. Beds: Number of Lines NA Distance between lines NA Ft. SEPARATION DISTANCES To Septic Absorption Lift Station I Holding Sewer Total absorption area Number of trenches Dist. between trenches From Tank Field Tank Line 960 Ftz 1 NA Ft. Well 100'+ 100'+ NA NA 125'+ TANK ❑fi Septic ❑ S.T.E.P. ❑ Holding ❑ Other Manufacturer GREER Capacity 1500 Gal. Surface Water 100'+ 100'+ NA NA Material Number of compartments Lot Line 5'+ 10'+ NA NA NA HDPE 2 Foundation 10'+ 10'+ NA NA LIFT STATION Manufacturer Capacity Remarks Gal. Alarm location Electrical installed by Installer PIPE MATERIAL House to tank 3034 Tank to 3034 drainfield Alaska Excavator Drainfield 3034 Co/MT3034 Inspector PES BENCH MARK (Assumed elevation) 580.0 ft Inspdection vt 6/30/22 6/31/22 Location and description 3rd 7/01/22 2nd 4'h 07/02/22 Bottom house trim @ A ON-SITE WATER AND WASTEWATER SECTION APPROVAL Engineer's Stamp Conditional Approval: Date ,COIF an Re Septic Syste 849 A roved pprovedwz,3 G. Date i 2 2023.04.19, Note: this approv 1 does no/tinclude well permit requirements. ,rmCv uuiu4i lo) 1500G GREERPOLY TANKPANNONE ENG SVC, LLC (C.I. 1088)ASCALE: NTSSEPTIC SYSTEM PROFILE AsBuilt 4/12/23 Feet 0 50 100 MUNICIPALITY OF ANCHORAGE On -Site Water & Wastewater Program PO Box 196650 4700 Elmore Road Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 http://www.muni.org/onsite On -Site Wastewater Disposal System Permit Permit Number: OSP211331 Work Type: Septic Initial Tax Code Number: 01737207000 Site Legal Address: KNIK HEIGHTS BLK H LT 7 G:2836 Site Mailing Address: 13080 BAINBRIDGE RD, Anchorage Owner: HYATT TREVOR T & JULIA A Design Engineer: PANNONE ENGINEERING SERVICES This permit is for the construction of: Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy Effective Date: Expiration Date: enr 10 S� G h Department 8/17/2021 8/17/2022 Lot Size in Sq Ft: 43500 Total Bedrooms: 5 C� ❑ Private Well ❑ Water Storage All construction shall be in accordance with: 1. The attached approved design. 2. All requirements specified in Anchorage Municipal code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations (18AAC72) and Drinking Water Regulations (18AAC80) 3. The wastewater code requires inspections during the installation. The engineer shall notify the Development Services Department per AMC 15.65. Provide notification by calling (907) 343-7904 (24/7). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather shall be either: a. Opened and Closed on the same day, or b. Covered, sealed, and heated to prevent freezing W 1 Z - &ar-a o inn Couv� CkN4" �q�,_ W/ Cor r -e sQa (\At, vk �� °�►'� 3 -12MC_ II (Z j w ?_Z_ Received By: Date: Issued By: Date: �Z /A 0.2 2 ON-SITE SEWER/WELL PERMIT APPLICATION Parcel I.D. 017-372-07 Property owner(s) Trevor & Julia Hyatt Day phone Mailing address 11369 Spyglass Hill Circle Anchorage, AK Site address NHN Bainbridge Rd Legal description (Sub'd., Block & Lot) Knik Heights BH L7 Legal description (Township, Range & Section) Lot Size 43,500 _Sq Ft Number of Bedrooms 5 ' Ct)# 3 APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field X❑ Initial n Single Family (SF) X❑ Septic Tank X❑ Upgrade F](w/wo AD U) Holding Tank ❑ Renewal ❑ Duplex (D) ❑ Privy ❑ Multiple Dwellings ❑ (SF and/or D) Private Well ❑ Water Storage ❑ THIS APPLICATION INCLUDES A VARIANCE ! WAIVER REQUEST FOR: Distance: I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit/Rush Fees: 0 5�5 Waiver Fees: Date of Payment: '�; I t b `d.1 Date of Payment: Receipt Number: 0Receipt Number: Permit No. _ () SP Q 1 3 3 Waiver No. Permit App_'- : :-'.,:c Pannone Engineering ServiceS LLC Steven R. Pannone, Principal Registered Professional Engineer E-mail: steve@panenizak.com 12 April 2022 Subject: Knik Heights BH L7 Septic System Permit Request Design Narrative (Change Order) This is a design narrative for a permit to install a septic system on the subject property. The proposed installation will serve a proposed five -bedroom (5) house. This lot and surrounding lots are served by private wells. Currently there are no wells within 50 feet of the proposed installation. 1. Soils: One test hole was performed on the lot by PES and groundwater monitoring was performed in September of 2021. Groundwater was not observed to a depth of 17' and bedrock was not encountered. Based on the results of the percolation tests and overall soils appearance; an application rate of 0.8 ga!lon/day/square feet was used for a conventional wastewater system in the area of the test hole. 2. Soil Absorption System Design. a. See Sheet 1 of the design package. 3. Surface Water: There is no surface water within 100 feet of the proposed septic tank and drain field. 4. Topography: See attached site plan for area topography. S. Drawing Markings: The Drawings are marked "For MoA Review Only". When written notification that the review is complete and no further comments are received from MoA On -Site Department, the note will be removed and "For Construction" drawings will be issued. The proposed installation will not affect the future development of this or the surrounding lots. If you have any questions or concerns, please contact me at 745-8200. Sincerely, I� Steven R. Pannone, P.E. Owner/Civil Engineer IN/]ailing: P.O.Box 1807, Palmer, AK 99645 Telephone: (907) 745-8200 FAX: (907) 745-8201 _-,inc)p-=> NOTES: -i0)C �;U) -u --q D� DATE 4/12/2022 CHANGE ORDER -3 H Oolm ztimg uzp � m P.I.D. No 017-372-07 co >Cn D SITE PLAN '� n M. v �O ODF, 0 C I x > m � z�0> DNO G7 Po�pzzo=D y = m. D� �m o- -i �mmpmZ p r _ 0'0" (n �L-pc mmz� mz I a) ��� �mv� 1 �" �D m�nz (n O c0 �O -0X00 Cn Lnto < m z m p z m m D ,r- m r� O -i 0 v lu-q -p O cn 179 o !n m D o w m > r � n � z `j n � 5 c m m n. Fel CAv O -< .D co p m - - --- Y ^'------- - - r�-- -- wom z -� zx / / / / �- I � •� 0 � r N / n I / D x II i ; OKE O r Z / =r'1 N3 r(n I i 0 m Fl i :j " I o�D L 1� // ! D O X L /J 0/ M-i�-D M Cn " f / " x M— M ` ------- r, / Ln Lo r r " J m m F- �3 Op�fZTI / m I� / -Dir =c7rp m C./- -- / BAINBRIDGE RD � / / 1 , NOTES: PANNONE ENG SVC LLC (C.i. 1U88) P.O. BOX 1807 PALI�ER• AK 996.5 PHONE (907) 745-8200 FAX (907) 745-8201 ."""`�. ;'�E DF A( '�,,, _ ��? • - 9SF9'h, -' as % 's c.S ce . 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BOX 102954 ANCHORAGE, AR 99510_ PHONE 907) 272-8218 FAX 907 272-8211 mKO0 w y i7y o0 ' T m"N m D •J I SCALE NTS n O m A y D �- NO 0-0 -1Z O D nD7 I m N < :q I ;u SOIL LOG ES Z n ,MT, O A % O m Z 2 ;7 D Z SHEET 2 OF 2 a M n O a<i D D a I Z _ M O z �mmm= V In to (n ;u m z z Op v1Dm Oy p mZZoo z r -ai-n-i y �7omoo C 9� >m Dy > M D n S20MK<rlm ZmzmC)mZ Z -m O c� Z tn�t>Ac �D 'OZ -'171 m� 3 < C ;u S= - z (7 <Oo (n - ch O r O M O C n D m�� �s o' r NOTES: PANNONE ENG SVC, LLC (C.1. 1088) P.O. BOX 102954 ANCHORAGE, AR 99510_ PHONE 907) 272-8218 FAX 907 272-8211 `"""+�,, 'qE OP. 4Gg1j�1, = ��P- S'�,, 7t', .. %, �',5�cE e149���`: _ ��'�;«,� 11���......�� REVISIONS DATE 1/10/2022 CHANGE ORDER -2 REV 1: 8/20/21 SCALE NTS KNIK HEIGHTS BH L7 TREVOR & JULIA HYATT SITE: NHN BAINBRIDGE ROAD,r ANCHORAGE, AK n DRAWN ACP SOIL LOG ES N N V N O D m SHEET 2 OF 2 I l z z z N r m N y Z -m n -T N I W I f7i I Oz '0 ch O r O M O C n D m�� �s o' r NOTES: PANNONE ENG SVC, LLC (C.1. 1088) P.O. BOX 102954 ANCHORAGE, AR 99510_ PHONE 907) 272-8218 FAX 907 272-8211 `"""+�,, 'qE OP. 4Gg1j�1, = ��P- S'�,, 7t', .. %, �',5�cE e149���`: _ ��'�;«,� 11���......�� REVISIONS DATE 1/10/2022 CHANGE ORDER -2 REV 1: 8/20/21 SCALE NTS KNIK HEIGHTS BH L7 TREVOR & JULIA HYATT SITE: NHN BAINBRIDGE ROAD,r ANCHORAGE, AK P.I.D. NO 017-372-07 DRAWN ACP SOIL LOG ES PERMITNO. 331 SHEET 2 OF 2 I IN MU N., REM M -N, !1111111111 1 111111111 1piijq� irIll I Development Services Department Or Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 Well Drilling Permit Number: Parcel Identification Nur.ber- 017 - 372 - 07 Legal Description Block Lot Property Owner Name & Address: BRICK & BIRCH HOMES LLC KNIK HEIGHTS H 7 4809 W 88TH AVENUE ANCHORAGE, AK 99502 Pump Installation Date: 08 31 - 2022 Pump Intake Depth Below Top of Well Casing: 290 feet Pump Manufacturer's Name: BERKELEY Pump Model: B7P4MS10231-02 Pump Size: 1.00 hp Pitless Adapter Burial Depth: 10 feet Pitless Adapter Manufacturer's Name: MARTINSEN Pitless Adapter Installer: Well Disinfected Upon Completion? )(Yes 0 No Method of Disinfection: PELLETS Comments: Pump Installer Name: ANCHORAGE WELL & PUMP SERVICE Company: 7640 KING STREET ANCHORAGE, AK 99518 Mailing Address: 907-243-0740 City: State: —Zip: Attention: The pump installer shall provide a pump installation log to On-site within 30 days of pump installation. I GREAI'LR ANCtl01d\GI: A!',L.A iJepartment of [nvirornnenLa] QualiLy 333() "C" Street /\nchorage, Alaska 99bU3 S()II,S 1,O(; PgROI,ATION 'Fl.:ST Legal Descr~ pt~ on/._/_o_~_~<~-L_ ~___<q__~j ......................... ~ l'~is forln reports: Soils lo9~_ ............................ Percolation test De p t h Feet 10- 12 - 13- l~as ground water encountered? ...... ,_z.~p If yes, at wnak depth? Reading Date Gross Time Net Time Depth to Water Percolation rate minute. -Proposed installat~un: oeepage Pit Urain Field DepDi of Inle~ ~ . Dept'[~-~"]~'[~l~:F"'l)'it o~ [.r'enci, '~TFF&; f~d '~)- ..................................... ~ e :..._..._. _...- ~ _ L?~: ...... Certifie~ : ........................... LABORATORY TEST REPORT 561049 Insitu Material R~M PROJECT NO. TEST ON PROJECT NAME gmmel .LAB NO. 75A-1309 SOURCE Lot 7 Block H F~ik Heights SUBMITTED BY E~Bel FIELD NO. ~ SAMPLED FROM Test Pit Lot 7 Block H Knik Heights subdivision DATE REPORTED 7~21-75 LOCATION Anchorage, Alaska DEPTH u~qknown DATE SAMPLEDu~kn°wn DATE RECEIVED 7-19-75 GRAIN SIZE DISTRIBUTION +10 %+3 % GRAVEL SAND SILT °/o CLAY FSV LL PL CLASS REMARKS CLASSIFICATI ON UNIFIED AASHO SM FAA COMPACTION OPTIMUM MOISTURE MAX WET OENSITY_ . _ MAX. DRY DENSITY CORR. MAX. DRY DENSITY °/o FRACT URB METHOD NATURAL DENSITY NATURAL MOISTURE __ WEIGHT LOOSE WEIGHT RODOED STATIC IMMERSION BRAND- 0% I/2°/o-- i% ~1/2% DELETERIOUS MATERIAL cOAHsE SPiC FI$I~ SPEC MINUS ~ 200 MESH SOFT FRAGMENTS COAL ~ LIG. OR LT. WT. PART. CLAY LUMPS k --,, STICKS e, ROOTS FRIABLE PARTICLES SPECIFIC GRAVITY ABSORPTION FINENESS ~iOOU LUS SULFATE SOUNDNESS FREEZE-THAW RATIO L.A. ABRASION LOSS. 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I C:I:::II",FF .J' I H EI'"IHE:L z i 2 OWNER OF LAND:, Trevor Hyatt ADDRESS: LEGAL DESCRIPTION Knik Heights Block H Lot 7 DATE: 5-24-22 PERMIT NUMBER: TAX IDENTIFICATION NUMBER DATE OF ISSUE: Is well located at approved permit location: ❑Yes ❑No Method of Drilling: ❑air rotary Elcable tool Depth of Well: 300' Casing Type: Steel Wall thickness ,250 inches Diameter: 6 inches, depth feet Liner type Static Water Level: 122' feet Recovery Rate 2 ® gpm F]gph Method of Testing Air Well Intake Opening Type: ❑ open end ❑open hole ❑ Screened Start feet Stopped ❑ Perforations Start feet Stopped Grout Type: Volume: Depth: from feet, to feet Well Disinfected Upon Completion: ®yes Ono Method of Disinfection: Chlorine 50 PPM Comments: Bore Hole Data DepthFrom 10 KITIM 19 1! Exisiting Well Bedrock Drillers Name: Cole Sullivan ATTENTION: It is the responsibility of the property owner to submit a copy of the well log to the proper authority. Municipality of Anchorage: Department of Health & Human Services and/or Department of Environmental Conservation. Matsu Borough: Department of Environmental Conservation. - Dmance to water while pump~ng..x..:,,:.,.: ...................... : ........... :', ...... - ...... at rate--,,:,- -, : · ..- . -- ":- "?'"~--'3~ .e,~'~.~ ..... t ~'.'. ~ .~ ¢': · / · , ~ ': .- .' _ of "~"~: i.*.~.~:':::.'..::./.gallo~sper~our:' - :': :' :: ." -: :':- ~. ~ ->. --..-- ;. -- ~' . ~. - .. i ~- i~- ~ - -----. . - .. ...-: .... Brown- ~':. B'~0wn: g i-ll-v"¢'~'~;'-~a~U"~¢5"2~~-' -' [~'~:' ~8¢: :'~---::. 4- G r ay e 15 y ' t-121,,: ;..;D~.~>-5'~,<: .,,, -~'a~ ~':: aha:;,.',~-~k~;:~%:~H'~o .":~-~: a_;~ .:_ '>138 _. _ .__ . . ~,. .......... ~. .~ :~./ ~. ~. :~: t~,::1:::':~ '::200 MUNICIPALITY OF ANCHORAGE 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. 01737207000 Legal description Knik Heights Block H Lot 7 Site address 13080 Bainbridge Road Current property owner(s) Brick & Birch Homes Expiration Date: 8/1/2023 X The On-site system(s) is/are approved for 5 bedrooms Conditional approval for bedrooms, with the following stipulations: Comments or advisories: 1 Original Certificate Date:_ This Certificate of On -Site Systems Approval (COSA) is intended to demonstrate the subject system(s) is/are in substantial compliance with municipal code. The Municipality of Anchorage, Development Services Department (DSD) issues COSAs based upon representations provided by an independent professional engineer. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. ATTACHMENTS: COSA Checklist X Well Flow Advisory Absorption Field Advisory Nitrate Advisory Tank Age Advisory Arsenic Advisory Other COSA ApprovaIjune 2022 Certificate of On -Site Systems Approval Application 1. GENERAL INFORMATION Parcel I.D. 017-372-07 Complete legal description Knik Heights BH L7 Location (site address) 13080 Bainbridge Rd Current property owner(s) Brick and Birch Homes 2. ON-SITE SYSTEMS SIZED FOR 5 BEDROOMS Day phone 3. TYPE OF WATER SUPPLY: ❑ Private Well ❑ Private Well serving 2 dwelling units ❑ Private Well serving 3+ dwelling units ❑ Community Well or Public ❑ Water Storage 4. TYPE OF WASTEWATER DISPOSAL: ❑ Private Septic ❑ Private Septic serving 2 dwelling units ❑ Holding Tank ❑ Community Septic or Public Sewer 5. SEPTIC TANK: ❑ Steel ❑ Plastic ❑ Concrete ❑ Fiberglass Age New - See advisory if steel older than 20 years 6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed ❑ Deep Trench ❑ Wide Trench ❑ Seepage Pit Waiver request for: Expedited review requested: ❑ Distance: By applying for this entitlement, this property is subject to inspection by municipal On-site staff to verify the accuracy of the information provided. COSA Fee $ 7 1� Waiver Fee $ Date of Payment tj so/s"' 2 Date of Payment COSA # O 5 L U510-2- Waiver # COSA Application—June 2022 1 ., Legal Description: Knik Heights BH L Parcel ID: 017-372-07 If more than I well and/or septic system on lot, provide separate checklist. Structure served by this system A. WELL DATA ❑ Well log is filed with Onsite (or attached) Date drilled 5/24/22 Total depth 300 ft Cased to 300 ft ❑ Sanitary seal is functioning correctly ❑ Wires are properly protected Casing height (above ground) 18+ in. Date of flow test for COSA 5/24/22 Static water level at beginning of test 122 ft. Comments B. TANK DATA Measured operating fluid level in septic tank Date of pumping © Required maintenance completed, if AWWTS Comments: New tank D. ABSORPTION FIELD DATA Which system tested (date installed) 07/01/23 On 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. ❑ Per record drawings, field is insulated. ❑ Monitor tubes go to bottom of effective. If not, state depth into effective ❑ Presoaked required if (Required if house vacant or field not used for more than 30 days prior to date of test) Gallons introduced gallons date Any rejuvenation treatment (past 12 months) no If yes, enter date Comments/Deficiencies: COSA Checklist June 2022 Well production at time of test 2 gpm Water storage tank volume gallons Well disinfected for coliform test? ❑ Yes ❑ No ❑ Coliform bacteria is Negative Nitrate ` mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L E Arsenic less than MRL (ND) Collected by PES Date 4/18/23 C. LIFT STATION ❑ Required maintenance completed Age of lift station years Lift station material Comments: Adequacy test date t,4GaLA.) Results ❑ Pass Fluid depth prior to test in Water added gal New fluid depth in Elapsed time min Final fluid depth in Absorption rate 750+ gpd FIELD STATUS — POST RECOVERY Effective depth (per record drawings) in Effective depth used in Effective depth remaining in From Private Well on Lot to: (Please enter distances if less than required or if community well on lot) Septic Tank/Lift Station on Lot > 100' Community Sewer Manhole/Cleanout > 100' ❑ Yes if No ft n Yes if No ft Neighboring Tank > 100' ❑ Yes if No ft Private Sewer/Septic Line > 25' R Yes if No ft Absorption Field on Lot > 100' 0 Yes if No ft Holding Tank > 100' ❑ Yes if No ft Neighboring Absorption Fields > 100' Animal Containment > 50' ❑ Yes if No ft 0 Yes if No ft Manure/Animal Excreta Storage > 100' Community Sewer Main > 75' ❑ Yes if No ft ❑ Yes if No ft ❑ NIA — Served by Community Well (not on lot) or Public Water From Septic/Holding Tank and Absorption Field(s) on Lot to: (Please enter distances if less than required) Building Foundations > 10' Fm -]Yes if No ft Surface Water > 100' ❑ Yes if No ft Tank to Property Line > 5' no Yes if No ft Wells on Adjacent Lots: Field to Property Line > 10' ❑ Yes if No ft Private Wells > 100' E Yes if No ft Water Main > 10' Q Yes if No ft Community Wells > 200' ❑ Yes if No ft Water Service Line > 10' Cj Yes if No ft If tank or field is under driveway comment below F. ENGINEER'S COMMENTS G. CERTIFICATION & 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, indicates that the on-site water supply and/or wastewater disposal system appears to comply with applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation, unless noted otherwise. Name of Firm Pannone Engineering Services Phone 907-745-8200 Engineer's Printed Name Steven R Pannone P. E., F. ASCE COSA Checklist—June 2022 Date of AC � 'P� qs�� i %N Nitrate Advisory Certificate of On -Site Systems Approval # OSC231102 Subdivision: Knik Heights, Block: H, Lot: 7 A water sample revealed a nitrate concentration of 5.88 milligrams per liter (mg/Q. 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. Since nitrates are known to slowly increase, we recommend you monitor the water quality. Please see the attached "Nitrate Fact Sheet" for important information regarding nitrate. This advisory must be attached to all copies of the subject Certificate of On -Site Systems Approval. Ma�l�n Address P O Box 196650 *Anchorage, Alaska 99519 6650 *www muni org