HomeMy WebLinkAboutMCKINLEY HEIGHTS #1 BLK 4 LT 1 Municipality of Anchorage Page I of DEPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744 On-Site Wastewater Disposal System and/or Well Inspection Report Permit Number: .~:(~)(~01~-/ PIDNumber: 0~'1 - ~ ~ Name: ~ F[_~/1 ((~. / /.(~ ~¢~- Wastewater System: ~New ~ Upgrade Phone: ~ 2~'-- '2 9 --2~ ND. Of Bedrooms:? ~ Deep Trench ~ Shallow Trench ~ Bed ~ Mound ~ Other LEGAL DESCRIPTION Soil Rating: 0,~7 GPD/Sq. Ft. Total Depthfromoriginalgrade: 7~ Lot: ~ Block: ~ Subdiv~ion:~., 1¢~ ~:~/ Depth t° pipe b°tt°m fr°m °rig~a~ ~de:. Ft. Gravel depth beneath pipe¢¢ ~ Ft. Township: IRange: ISection: Filladdedaboveoriginalgrade~ Ft. Gravellength: ~ Ft. r~ Number of lines: Distance~etwe~ lines: WELL: ~ New ~ Upg Gravelwidth: i_~-' Ft. % ~.5 Ft. Classification ( Private, A,B.C): ~ Cased To: Total absorption area:~5 ~ '~ Pipe materiah ~:~¢~E ." ~ / Ft. Ft. SQ. Ft. , . Driller: ~~,' ~%~¢ '[~, Date Drilled: StAtic Water Level:Ft. Installer: ~ ~ ~ ~. Date installed: ~,_ /.~ ~ ~ '~GPM Pump Set at: Ft. Casing Height Above Ground:Ft. ~ TAN K SEPARATION DISTANCES ~Septic ~ Holding ~ S.T.E.P. To Septic Absorption Lift Holding Public/Pdvatel Manufacturer: Capacity in gallons: From Tank Field Station Tank S .... Lines J PX~'~; (? ~/~ j;'~' ~ Su~ace ~ Water ~0'O~+ ~¢~f LIFT STATION Lot Size in gallons: Manufacturer: Foundation ~'0:~ d~' water alarm at: Remarks: ;~ 2' ~ *Xge2 b x,e f4 BENCH MARK ~' (. 4 Assumed Elevation: Inspections performed by: r~.~. m... ~,..~. eo~,, Dates: 1st ;., ,/;;¢~;~¢~.-, 2nd ('-D~'* ~'~ 6 ~ ~ ,o~,'r c. cows, /.~. Department of Health and Human Services approval ' '" ...... Reviewed and approved by' 0~,** / ~, ~ Date: 7-~7''q ~ ' · /~/- ~ 72-013 (Rev. 9191) MOA 25 PERMIT NO, SW990151 PAGE 2 OF 5 Municipcx[i-{; oF Anchor'c~c3e DEPARTMENT OF HE~,~_THAND HUIVTAN SERVICES ENVIRONMENTAL SERVICES DIVISION P,O, Box 196650 ®Anchor'aoe, ALaska 99519-6650 e Telephone: 343-4744 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT LgGAL LOT 1, BLOCK 4, MCKINLEY HEIGHTS #1 p.z.I). NO. 051-212--59 L FC01 FC02 T POSTS 1300 GALLON POLYETHYLENE SEPT[C TANK 100' WELL RAI3IUS SCALE: ROBERT C. COWAN CE - 8F, O I PERMIT NO SW990151 PAGE 3 OF 3 Plu nicip, 9_Li?y_o..F Anc½o~'aQe DEPARTMENT OF HhAL/H AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P,B, Box 196650 oAnchono9e~ At~sk~ 99519-66500Telephone~ 343-4744 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT LEGAL LOT 1, BLOCK 4, MCKINLEY HEIGHTS #1 PH.D. NO. 051--212--59 A B FC01 38.5' 6.5' FCO2 38.0' 7.0' )BL1 66.0' 76.0' DBL2 66.5' 78.5' ST1 63.0' 80.5' ST2 62.0' 81.0' DBL3 61.5' 82.0' DBL4 62.0' 83.5' C0t 55.5' 89.0' C02 79.5' I01.0' MT1 74.5' 94.0' MT2 62.0' 95.5' / 98.8' /--FINAL GRADE N MT1 COl / C02 MT2 / II & g" INSULATION II I 9a.a'~[I 94.5' ~ ~ 94.4~ 11~94.0'l ~ [ /~t 2' SAND FILTE~ ~ ~2~~ DIST. PIPES LAID WF~HIN ~ - [ ~,,' .... :'".iI~ SEWER ~OCK, 6" UNDER ~ ~' "~ ~ NO WATER FOUN9 ~,~ ~o~,~ c. cowA~ ],~' 83 0' . B.O.H. '~,~).j, CE-Gaol /~ ASBUILT SEWARD & ASSOCIATES LAND SURVEYING 694-082 I HEREBY CERTIFY -THAT I HAVE SURVEYED THE SCALE: FOLLOWING DESCRIBED PROPERTY: z-,= ya /Gor/�r�y DATE "a `(, At AND THAT NO ENCROACHMENTS EXIbT' EXCEPT AS s�s-l8 �,.••� •• 5,�4� INDICATED. IT 1S THE RESPONSIBILITY OF THE OWNER TO DETERMINE THE EXISTENCE OF ANY GRID: -EASEMEN-T-Sr GOVENAN-T-S- OR -RESTRICTIONS WHICH DO NOT APPEAR ON THE RECORDED SUBDI- VISION -..PLAT. UNDER NO CIRCUMSTANCES SHOULD FB., ANY DATA HEREON BE USED FOR CONSTRUCTION OF FENCE LINES, OR FOR ESTABLISHING BOUND- ARY LINES. DRAWN: ' f * - T 4 .. , �Q Duane Mark Sewar �( LS 6918 xllwwv�� MUNICIPALITY OF ANCHORAGE Department of Health and Human Services On-Site Services Program 825 L Street, Room 502 P.O. Box 196650, Anchorage, AK 995~9-6650 (907) 343-4744 ON-SITE WASTEWATER DISPOSAL SYSTENI PERMIT Upgrade Date Issued: Jun 18, 1999 Expiration Date: Jun 17, 2000 Permit Number: SW990151 Legal Description: MCKINLEY HEIGHTS #1 BLK 4 LT 1 Design Engineer: 0003 S & S Engineering Owner Name: Terrance H Troyer Owner Address: PO box 670847 Chugiak, AK 99567-0847 Parcel ID: 051-212-39 Site Address: 021725 ROBIN DR Lot Size: 29621 SQ. FT. Total Bedrooms: 3 Permit Bedrooms: 3 This permit is for the construction of: [] Disposal Field [] SepticTank [] Holding Tank [] Privy [] Private Well [] 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 engineer must notify DHHS at least 2 hours prior to each inspection. Provide notification by calling (907) 343-4744 ( 24 hours ). ( Not required for a Water Supply Permit only ). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must be either: A. Open and closed on the same day. B. Covered, sealed, and heated to prevent freezing. Received By: ~-~J/2 /~--~- Date: Issued By: l/*~ Date: ROBERT C. COWAN, P.E. June 7, 1999 CIVIL ENGINEERS (907) 694-2979 FAX (907) 694-1211 HEALTH AUTHORITY APPROVALS SEWER & WATER SEWER &WATER INSPECTION ENGINEERING STUDIES AND REPORTS WELL INSPECTION & FLOWTEST SITE PLANS ROAD DESIGN SOILTEST PERCOLATION TEST STRUCTURAL & MECHANICAL INSPECTIONS ONSITE WASTEWATER DISPO~ALSYSTEM D~SIGN MUNICIPALITY OF ANCHORAGE Department of Health and Human Services P.O. Box 196650 Anchorage, AK. 99519 REFERENCE: Lot 1, Block 4, McKinley Heights Subdivison #1 It is requested that you issue a permit to install a septic system to serve the three bedroom dwelling on the referenced property. One test hole was excavated and a percolation test was performed. The approximate location of the test hole is located on the attached site plan. At the time of excavation 5/28/99 water was not found. After seven days of ground water monitoring the monitoring tube was dry. We do not anticipate any adverse effects on neighboring wells, septic systems, reserve areas or drainage patterns by the installation of the proposed septic system. The construction of this system will not prevent any future development on any of the adjacent properties. If you require additional information, please contact us. Sirlcerely, Robert C. Cowan, P.E. RCC/jhm Enclosure 17034 NORTH EAGLE RIVER LOOP· SUITE 204 · EAGLE RIVER, ALASKA 99577 1" = 60' SITE DESIGN SCALE ~ ~ F ~% "-- ~ ~ ~ ~> ~ 0 - ~ ~' ' ~ " ~B=~ ~ ~ / 5-'N ,,~ ..,S.~,'. :.,.., .. 43' (TYP.) 0 MT CO 4.5' O.C~-- (TYPO CO MTC ........... ~S' (TYP.) EFFLUENT FROM / --I SEPTIC TANK 4" PERFORATED 4" PIPE FOR LATERALS (F-81 CLEANOUT (TYP. 2) 15' 4" MONITORING PIPE (TYP. 2) PVC 15' X 45' BED SYSTEM 0,5' EFFECTIVE] 2' SAND FILTER CO MT MT FILTER II II _ > ) FABRIC~ II II .~, O ~ ORIGINAL :~ z -- 4" PERFORATED PVC . D LATERALS (F-810) '¢ SEWER ROCK IS 6" UNDER & 2" OVER PERF. PIPE PROFILE I7034 EAGLE RIVER LOOP ROAD EAGLE RIVER, ALASKA 99577 PHONE~ (907)694-2979 FAX# LOT 1, BLOCK 4, McKINLEY HEIGHTS S DRAWN BY: 2HECKED BY: DATE: SHEET; SCALE: J.H.M. R.C.C. 6-10-99 2 OF 2 N.T,S. Municipality ct Anchorage. DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L' Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR: / ~:-]/~' I~ t:~/~J ~'--~:~ / ,~. ~'~ ~f )c.- DATE PERFORMED: LEGAL DESCRIPTION: ~-('-2~*- / /-.~' g0{if~ 4 Township, Range, Section: tl (,/<"f/x//__ 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2O SLOPE SITE PLAN WAS GROUND WATER ENCOUNTERED7 S IF YES, AT WHAT //~11 (~ DEPTH? ~ p Monitoring? . __ I ,ak Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLATION RATE '~ ) (minutes/inch) PERC HOLE DIAMETER TEST RUN BETWEEN ~ FT AND '~ FT COMMENTS PERFORMED BY: 'L'I '~'-('-~-: L.- ~ov~._,¢:~" I /'~'?'.''?¢/I/~/-g7,'~-~- CERTIFY THAT T~IS T~ST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 6 [ lo/(;~ ¢ 72-008 (Rev. 4/85) ROBERT C. COWANo P.E. HEALTH AUT HO RITY APPROVALS SEWER&WATER MAIN E~TENSIONS SEWER&WATER INSPECTION ENGINEERIN~ STUDIES AND REPORTS ~LL INSPECTION & FLOW TEST SITE PLANS ROAD DESIGN SOIL TEST PERCOLATION TEST STRUCTURAL & MECHANICAL INSPECTIONS ONSITE WASTEWATER DiSPC~AL SYSTEM DESIGN ON-SITE WASTEWATER DISPOSAL SYSTEM CONSTRUCTION PRACTICES and MATERIAL SPECIFICATIONS CIVIL ENGINEERS (907) 694-2979 FAX (907) 694-1211 REFERENCE: Lot 1, Block 4, Subdivision #1 June 7, 1999 GENERAL: The scope of this project includes the installation of a 1000 gallon septic tank and leachfield bed for the existing three bedroom house located on the referenced property. Construction shall be in accordance with the approved site plan and design drawings, Municipal permit with any special provisions or conditions, and all applicable State and Municipal Wastewater Disposal Regulations. The contractor shall be responsible for obtaining any necessary underground utility locates. Unless specifically agreed otherwise, the property owner shall be responsible for final grading areas subsequently depressed from soil settling. Contractors installing wastewater disposal systems must be certified by the Municipal Health Department for system installations. Owners installing their own systems must also receive prior approval from the Municipal Health Department. SEPTIC TANK INSTALLATION: A septic tank is to be constructed by a certified septic tank manufacturer. Construction shall include two 4" cleanouts for pumping access. The septic tank shall be sufficiently bedded to prevent settling or shifting of the tank. All standpipes on the septic tank shall extend a minimum of 12 inches above final grade. 17034 NORTH EAGLE RIVER LOOP ' SUITE 204 · EAGLE RIVER, ALASKA 99577 Page 2 Lot I, Block 4, McKinley Heights S/D #1 June 7, 1999 o Septic tanks installed with less than 4 ft. of cover shall be insulated. A foundation cleanout shall be installed one to four feet from the building foundation. In the line between the tank and the leachfield there shall be two adjacent cleanouts (unless an effluent pumping system exists within the septic tank). These cleanouts shall be located on undisturbed soil not more than 10 ft. from the tank. The first cleanout, in line, shall be to clean toward the leachfield. The second cleanout shall be to clean toward the septic tank. Final grading over the septic tank shall be such that a positive slope exists away from the septic tank. ABSORPTION TRENCH/DRAINFIELD INSTALLATION: Excavate the proposed trench to the dimensions shown on the design. The bottom of the excavation shall be within 2 inches of level. If the sidewalls of the excavation become smeared, they must be raked or scratched (ruffed-up) before gravel (sewer rock) placement. Once the gravel is installed, the distribution pipe is to be installed level with the perforations faced downward. Gravel is then to be placed over the distribution pipe to provide a minimum of 2 inches of cover over the pipe. A silt barrier must be installed between the final gravel layer and the native soil backfill. Ensure the silt barrier covers the entire gravel surface before placing backfill. Monitor tubes shall be of four (4) inch diameter, installed approximately in the locations shown on the design, and extend a minimum of 12 inches above final grade. The portion of the monitoring tube extending through the gravel shall be perforated from the bottom of the trench to the invert of the distribution pipe. This is equivalent to the effective depth of the gravel as noted on the design. Backfill over the final gravel layer must not be less than twenty-four (24) inches. Insulation must be installed when the backfill depth is less than thirty-six (36) inches. The finish grade over the trench must be mounded to prevent the formation of a depression after settling. $ & $ Engineering Page 3 Lot 1, Block 4, McKinley Heights S/D #1 June 7, 1999 MINIMUM MATERIAL SPECIFICATIONS: Any septic tank proposed for installation must be constructed by a Municipal approved septic tank manufacturer. The following pipe materials are approved for use in septic system installations in the Municipality of Anchorage: Type of Pipe perforated Solid Cast Iron Yes Yes ASTM D3034 (PVC) Yes Yes ASTM F810 (I-IDPE) Yes No ASTM D2662 (ABS) Yes Yes Use of a type of pipe other than listed above must be approved by the inspecting engineer. Insulation shall be at least 2" thick extruded direct burial polystyrene (Dow Chemical Company Styrofoam HI or equal). Septic tank inlets and outlets shall be fitted with watertight couplings (Caulder, Femco, or equal). A permeable nontoxic silt ban'ier (Typar 3401, Mirafi 140N, or equal) must be installed between the final leachfield gravel layer and the native soil backfill. All leachfield gravel (sewer rock) shall be 0.5"-2.5" screened gravel with less than 3% passing the #200 sieve. When sand is being used as a filter material, its gradation specifications must conform to current M.O.A. or D.E.C. requirements, which ever requirement applies. INSPECTIONS: Typically there will be a minimum of three (3) inspections required during the installation of the wastewater disposal system. These inspections will occur as follows: S & $ Engineering Page 4 Lot 1, Block 4, McKinley Heights S/D #1 June 7, 1999 The first inspection must be conducted after the excavation of ditches, pits, trenches, or beds and before the installation of any gravel. A septic tank may be set in place, but may not be backfilled before this inspection. The second inspection must be conducted after the placement of the silt barrier, gravel, distribution lines, standpipes, cleanouts, and insulation, but before the placement of any other backfill. 3. The final inspection is to occur upon final grading of the property. Often there will be more than these 3 inspections required. Especially with the installation of multiple trenches, sand filters, pressurized distribution systems, etc. Thus, the inspecting engineer is to be contacted at least 24 hours prior to the start of construction. If necessary, a pre-construction meeting will take place on-site. The inspecting engineer will not coordinate, direct or control in any way the contractors activities. The owner shall contract with the contractor to perform the work outlined in these specifications and plans and in accordance with the attached M.O.A. permit. There will be no contractual arrangement existing between the contractor and S & S Engineering. S & S Engineering shall be the owner's representative and will inspect the work as stated above to document the contractors activities. Final acceptance of the contractors work rests with the owner and the M.O.A. S & S Engineering shall have no liability to the owner or to others for acts or omissions of the contractor or any other persons performing work on this project or the failure of the contractor to carry out the work in accordance with these construction documents. S & S Engineering's inspecting engineer will not be responsible for the construction means, methods, techniques, sequence, procedures or the safety precautions incident to this project. CONTRACTOR/INSTALLER $ & $ Engineering 1�11�I JH0C0 PD „ L � T Y OFCH0RIA GE f � Development Services Department 4 Phone: 907-343-7904 On -Site Water _& Wastewater Section Fax: 907-343-7997 Certificate of On -Site Systems Approval Parcel I.D. 051-212-39-000 Expiration Date: Legal description MCKINLEY HEIGHTS #1 BLK 4 LT 1 Site address 21725 ROBIN DR Chugiak AK 99567 Current property owner(s) Troyer Terry X The On-site system(s) is/are approved for 3 bedrooms Conditional approval for Comments or advisories: :A 12/21/2023 bedrooms, with the following stipulations: Original Certificate Date: 9/21/2023 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 X Tank Age Advisory Arsenic Advisory Other COSA Approval_June 2022 G`iI UHMPUTY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On -Site Water & Wastewater Section -- - --- - -- Fax: 907-343-7997 Certificate of On -Site Systems Approval Application 1. GENERAL INFORMATION Parcel I.D. 051-212-39 Complete legal description Lot 1, Block 4, McKinley Heights #1 Location (site address) 21725 Robin Drive, Chugiak, Alaska 99567 Current property owner(s) Terry Troyer Day phone (101) 515+ 2. ON-SITE SYSTEMS SIZED FOR 3 BEDROOMS 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: 0 Private Septic Private Septic serving 2 dwelling units Holding Tank Community Septic or Public Sewer 5. SEPTIC TANK: Steel Plastic Concrete Fiberglass Age 24 - 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 $ .S50 Date of Payment S/31 2:1) COSA # OS 62.31336 Waiver Fee $ Date of Payment Waiver # COSA Application—June 2022 Legal Description: Lot 1, Block 4, McKinley Heights #1 Parcel ID: 051-212-39 If more than 1 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) Well production at time of test 4.3 gpm Date drilled Total depth ft Water storage tank volume gallons Cased to ft Well disinfected for coliform test? Yes No Sanitary seal is functioning correctly Coliform bacteria is Negative Wires are properly protected Nitrate 8.04 mg/L Nitrate less than MRL (ND) Casing height (above ground) 18+ in. Arsenic ug/L Arsenic less than MRL (ND) Date of flow test for COSA 8128/23 Collected by Pinard Engineering Static water level at beginning of test 42.2 ft. Date 8/15123 Comments Owner purchased property 24 years ago. He says that there is no log. R Neo 1 led 9- a If- (do' B. TANK DATA Measured operating fluid level in septic tank 4. Date of pumping 5/23/23 Required maintenance completed, if AWWTS Comments: D. ABSORPTION FIELD DATA Which system tested (date installed) 7/1/99 ALL standpipes present per record drawing Total measured depth from grade 5.0 ft (max) Measured depth to pipe invert from grade 4.3 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) None If yes, enter date C. LIFT STATION Required maintenance completed Age of lift station years Lift station material Comments: There is no lift station Adequacy test date 8/28/23 Results NQ Pass Fluid depth prior to test 0.0 in Water added 452 gal New fluid depth 2 in Elapsed time 150 min Final fluid depth 0.0 in Absorption rate 450+ god FIELD STATUS — POST RECOVERY Effective depth (per record drawings) 6 in Effective depth used .,'ZQ in Effective depth remaining -116 in fly Comments/Deficiencies: 2" of board insulation was installed over the complete system (from foundation to end of SAS) COSA Checklist June 2022 E. SEPARATION DISTANCES 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' Q 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' [E Yes if No ft Holding Tank > 100' QYes if No Neighboring Absorption Fields > 100' if No ft Animal Containment > 50' 0 Yes if No 0 Yes if No ft ft If tank or field is under driveway comment below F. ENGINEER'S COMMENTS Manure/Animal Excreta Storage > 100' Community Sewer Main > 75' Yes if No ft QYes if No N/A — 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' Q Yes if No ft Surface Water > 100' Yes if No Tank to Property Line > 5' Yes if No ft Wells on Adjacent Lots: Field to Property Line > 10' 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 tank or field is under driveway comment below F. ENGINEER'S COMMENTS ft ft ft ft ft ft ft ft 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 F tN at -i CN<t i c d` tt tn3 c Phone (907) 232-1347 Engineer's Printed Name Pa L" PJ J ~d Date Z/ SO Z.3 COSA Checklist—June 2022 4144 z c Patel E. Pinard ` CE - 4793 A,OFE6 a 23 Nitrate Advisory Certificate of On -Site Systems Approval # OSC231336 Subdivision: McKinley Heights #1, Block: 4, Lot: 1 A water sample revealed a nitrate concentration of 8.04 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. Y r Mailing Address P L1 Box X96650 *Anchorage, Alaska 99519 6650 *www muni org From Northern Testing Laboratories, Inc. Nitrate is a negatively charged compound of nitrogen and oxygen, which is very soluble in water. Nitrate is not readily filtered or otherwise removed in the soil and can pass rapidly into ground water wells. SOURCE: Nitrate is a major component of fertilizer and wastewater. Often the nitrate is in the form of ammonia or protein first, which through contact with oxygen and certain bacteria, converts to the oxidized form known as nitrate. Sources of nitrate from wastewater include urea, ammonia cleaners, food solids, and bacterial cells. It may also result from the breakdown of organic matter buried in the soil. TOXICITY: Nitrate is generally not toxic to adults or children over the age of two or three years, but is associated with a potentially fatal infant disease called methemoglobinemia. In the digestive system of young children, nitrate converts to nitrite, which can pass through the intestinal wall into the blood stream. There it combines with the hemoglobin and interferes with the ability of the blood to carry oxygen. For this reason, methemoglobinemia is referred to as "blue baby" disease. The EPA limits the concentration of nitrate in public drinking water supplies to 10 mg/L. The standard has been lowered from a previous level of 45 mg/L set by the US Public Health Service and the World Health Organization. TREATMENT: due to its solubility in water and negative ionic charge, filtration and other common home water treatment systems such as softening or iron filtration does not readily remove nitrate. The best method for limiting nitrate in well water is source control. This can include avoiding overdosing of fertilizer near the well and maintaining good separation distances between septic tank leach fields and the well. A special anion exchange filter that contains a media with a strong affinity for negatively charged ions in water, or by a reverse osmosis treatment system or distillation can remove nitrate. TESTING: Nitrate analysis is usually done by one of the several "wet chemical" methods using a spectrophotometer to read the final color endpoint. Specific ion electrodes also can be used to detect the activity of nitrate in water. This laboratory uses several different wet chemical methods approved under the public water supply laboratory certification program. They also have test kits available, which the laboratory uses to perform an inexpensive "screening test", and with which the homeowner can monitor the change in nitrate levels from their well. They recommend comparing the test kit results against a certified analysis from the lab occasionally to verify the accuracy of the kit. We recommend using a specially prepared bottle that has been rinsed in hydrochloric acid for collecting samples. Ma lmg Address P O Box 196650 *Anchorage, Alaska 99519 6650' www murn org3 OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU OHU O H U O H U O H U O H U O H U LO7 LO7 1 LO&. LO7 1 LO&. LO7 LO&. A0 O 1 S O1 R O A D RO%I 1 DRI9 E 0 0 0 0 RA9EL DRI9EWA< SH E D S H E D O1& RE7AI1 WALL W SS S S SS SSS S S S S S2 1 11 00 W 217 61 S 5 1 1 3 4 5 E 7 1 9 7 S72° 06 3 2 W 2 0 7 3 6 S 4 3 2 9 2 7 E 2 5 4 0 0 T E G 1 0 0 W E L L R A DIU S 1 10 1 1 1 1 LRW 1 ORFN 0F.LQOH\ HHLJKWV SXEGLYLVLRQ AGGQ 1R 1 1 1 ST W 1 RRELQ DULYH SWRU\ WRRG )UDPH HRXVH WLWK AWWDFKHG DU *DUDJH ED*E O 3 A 9 E 0 E 1 7 PROFESSIONAL SEAL Date:Frontier Surveys, LLC Project No: 650 W. 58th Ave. Suite E Anchorage, Alaska 99518 As-Built Survey of: www.frontiersurveys.com Frontier Surveys, LLC I, Pierre Stragier, hereby certify that this Mortgage Inspection Survey was performed by me, or under my direct supervision on Plat:Grid:Ordered By: 907.460.1686 - info@frontiersurveys.com This survey complies with the ASPLS Mortgage Location Standards. The survey represents visible improvements and conditions at the time of the survey. This document does not constitute a boundary survey and is subject to any inaccuracies that a subsequent boundary survey may reveal. It is the responsibility of the Owner to determine the existence of any easements, covenants, or restriction which do no appear on the record plat. Under no circumstances should this document be used for construction or for establishing a boundary or fence line. August 22nd, 2023. Legend: Scale 1" = 40' Gas Meter Electric Meter/Outside Power Deck Septic Telephone Pole Overhead Utility Lot 1, Block 4 McKinley Heights Subd. Addn. No. 1 General Notes: 1. This document is created for the purpose of a single property transaction and is subject to Federal Copyright Laws. 2. Excepting for gross negligence, the liability for this survey shall not exceed the cost of preparing this survey. 3. All measurements/setbacks are to the visual/apparent building footprint. 4. All dimensions to property lines are plus/minus 0.1ft. Wendy Thomas 23-345 08/23/2023 P-629 1058 Water Well Tel. PedestalConcreteG E S T W AXJ 0 R E GISTEREDPROFESSIO N A L L A N D SURVEYORPierre M. Stragier No. L.S. - 9812