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HomeMy WebLinkAboutPROSPECT HEIGHTS BLK 2 LT 130.-15 Municipality of Anchorage On -Site Water and Wastewater Section - (907) 343-7904 Page of ON-SITE WASTEWATER INSPECTION REPORT Permit Number: OSP251062 PID Number: 015-091-13 Dwelling: Z Single Family (SF) El with ADU R Duplex (D) El Two Single Family Project: El New 0 Upgrade Name PHILIP & ANITA MABRY ABSORPTION FIELD - EXISTING Z Deep Trench El Wide Trench R Bed El Mound Site Address 9800 PROSPECT DRIVE, Anchorage [:] Other Phone Number of Bedrooms Soil Rating Total depth from original grade 1 4 GPD/SF1 Ft. LEGAL DESCRIPTION Depth to pipe invert from original grade Ft. Gravel depth beneath pipe Ft. Subdivision Block Lot PROSPECT HEIGHTS 2 13 Fill added above original grade Ft. Gravel length Ft. Township Range Section Gravel width Ft. Beds: Number of Lines Distance between lines Ft. SEPARATION DISTANCES To! i I Septic i Absorption I Holding Sewer Total absorption area Number of trenches Dist. between trenches i Lift Station From Tank Field Tank Line Ft' Ft. Well 100'+1 25'+ TANK 2 Septic El ST.E.P. [1 Holding [I Other Manufacturer GREER Capacity 1500 Gal. Surface Water 100+1 Material HDPE Number of compartments 2 Lot Line 1o'+ NA Foundation 10+ LIFT STATION Manufacturer Capacity Gal. Remarks DEEP -BURIAL TANK. Alarm location Electrical installed by Tank to PIPE MATERIAL House to tank 3034 3034 Installer NORTHERN EXCAVATION drainfield - ------- -- Drainfield CO/MT 3034 Inspector FWCS BENCH MARK (Assumed elevation) 100 ft Inspection 1" 5/6/25nd 5/7/2025 Location and description dates: 2 3rd 4t ITOP OF MH ON-SITE WATER AND WASTEWATER SECTION APPROVAL AG Conditional Approval: Date AW1 V_ .... ... .. ....... - - --------- - ---- - ---------- SeSy .... ptic Approvee Curtis Huffman 12899101 D 8/20/2025.. PR Note: this approval does not include well permit requirements. (Hev p_b/u:e/ i u) PID:015-091-13 PERMIT:OSP251062 FIRST WATER CONSULTING PROSPECT HEIGHTS BLOCK 2, LOT 13 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: OSP251062 Work Type: SepticTank Upgrade Tax Code Number: 01509113000 Site Legal Address: PROSPECT HEIGHTS BLK 2 LT 13 G:2441 Site Mailing Address: 9800 PROSPECT DR, Anchorage Owner: MABRY PHILLIP H & ANITA L Design Engineer: FIRST WATER CONSULTING This permit is for the construction of: Effective Date: Expiration Date Lot Size in Sq Ft: Total Bedrooms: 4/3/2025 4/3/2026 90308 ❑ Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy ❑ Private Well ❑ Water Storage All construction shall be in accordance with: 1. The attached approved design. 2. All requirements specified in Anchorage Municipal code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations (18AAC72) and Drinking Water Regulations (18AAC80) 3. The wastewater code requires inspections during the installation. The engineer shall notify the Development Services Department per AMC 15.65. Provide notification by calling (907) 343-7904 (24/7). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather shall be either: a. Opened and Closed on the same day, or b. Covered, sealed, and heated to prevent freezing Special Provisions: 1. Prior to construction locate the beginning of the field to ensure required separation is met. 2. Existing seepage pit to be decommisioned. e1�'V­dd`By.�e �- RW Date: Issued By: Date: 4 MUNICIPALITY OF ff 11, 1 Development Services Department On -Site Water & Wastewater Section Parcel I.D. 015-091-13 ANCHORAGE ON-SITE SEPTIC/WELL PERMIT APPLICATION Property owner(s) PHILLIP & ANITA MABRY Day phone Mailing address 9800 PROSPECT DRIVE, ANCHORAGE, AK 99507 Site address 9800 PROSPECT DRIVE, ANCHORAGE, AK 99507 Legal description PROSPECT HEIGHTS BLOCK 2, LOT 13 Number of Bedrooms 4 Engineering Firm FIRST WATER CONSULTING Building Permit Number Not Applicable ❑1 APPLICATION IS FOR: APPLICATION IS AN: (® all that apply) Absorption Field ❑ Initial ❑ Septic Tank ® Upgrade Holding Tank ❑ Renewal ❑ Privy ❑ Well ❑ THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: 2 2 -5 - Date SDate of Payment: Z Permit No. S' Z S 1 C) L, Waiver Fees: Date of Payment: Waiver No. Phone: 907-343-7904 Distance: 13030 Sues Way, Anchorage, AK 99516 907-350-9566 / FirstWaterAK@gmail.com ! !! March 25, 2025 Municipalities of Anchorage On-Site Water & Wastewater Program 4700 Elmore Road Anchorage, AK 99507 RE: SEPTIC TANK UPGRADE PERMIT LEGAL: PROSPECT HEIGHTS BLOCK 2, LOT 13 The owner has requested that we obtain a septic permit to upgrade the existing aged steel septic tank on the above referenced lot. We propose to install a 1500-gallon HDPE tank per the attached design to serve the existing 4-bedroom residence. If groundwater is encountered during installation that may affect this septic tank upgrade, an epoxy coated steel septic tank or other action may be required. An existing deck greater than 30” high is around the proposed tank area and any supports must be 5’ from the tank install or deck supports driven to the bottom of the tank elevation. The lot and area are served by private water and any encroaching wells, easements, … must be staked prior to construction. The design will not impact any of the neighboring properties. Please contact us if you have any questions. Sincerely, Curtis Huffman, P.E. Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251062, Ben Cogger, 04/03/25 FIRST WATER CONSULTING PROSPECT HEIGHTS BLOCK 2, LOT 13 DESIGN DETAILS: NO WELLS WITHIN 100' OF PROPOSED SEPTIC TANK Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251062, Ben Cogger, 04/03/25 MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On-Site Water & Wastewater Section Fax: 907-343-7997 Pump Installation Log Well Drilling Permit Number: _______________ Date of Issue: ____-____-____ Parcel Identification Number: ____-____-____ Legal Description Block Lot Property Owner Name & Address: Pump Installation Date: _____-_____-_____ Pump Intake Depth Below Top of Well Casing: __________ feet Pump Manufacturer’s Name: ___________________________ Pump Model: _____________________________________ Pump Size: ____________hp Pitless Adapter Burial Depth: _________ feet Pitless Adapter Manufacturer’s Name: _________________________ Pitless Adapter Installer: ____________________________ Well Disinfected Upon Completion? XX Yes No Method of Disinfection: _____________________________ Comments: Pump Installer Name: __________________________________ Company: ___________________________________________ Mailing Address: ______________________________________ City: ___________________ State: __________Zip: _________ Attention: The pump installer shall provide a pump installation log to On-site within 30 days of pump installation.  MUNICIPALITY OF ANCHORAGE i · DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION , ENVIRONMENTAL ENGINEERING DIVISION ' 825 L Street- Anchorage, Alaska 99501 Telephone 264-4720 ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT NAME rUP RADE LO°AT,ON Absorotion area D~ellin~ ~IT ~0. ISTANCE TO' ] ~ ~ Manufacturer ~ ~ No. compartments Liq. capac~t~n ~allons Inside length Width Liquid~epth / ~ 0 ' IF HOMEMADE: ~ , ~ ~ ~ DISTANCE T~/ /~ ~ PERMIT NO. O~ Man ~ ~ ~ ~ -- ~ ~ / Liquid capacity in gallons ~ Well Foundation Nearest lot line PERMIT NO. ~ ~ DISTANCE TO: ~_ No. of ]ineso~ ~ Length of eac~ , Total leng~f~e,, Trench width~,~ Distance between~ ~lines ~ ~ ~ Top of tile to finish grade / Material beneath tile~b~°~t ~ Length Width Depth PERMIT NO. ~ ~ Type of crib Crib diameter Crib depth Total effective absorption area ~ DISTANCE TO: Well Building foundation Nearest lot line ~ ~ ~~ Depth Driller Distance to lot line PERMIT NO. ~ DISTANCE TO: Building foundation Sewer line Septic tank Absorption area(s) OTHER SOl L TEST RATING ~ ~ ~ ~[ ~ , APPROVED /~ DATE LEGAL PE~.M I T NO. APPLICANT C A SMITH 68±0 HYATT DR. LOCATION PROSPECT DR. LEGAL LT l~ BLK. 2 PROSPECT HTS. S/D LOT SIZE TYPE OF SOIL ABSORPTION SYSTEM IS: TRENCH MAXIMUM NUMBER OF BEDROOMS = 4 SOIL RATING (SQ FT/'BR)= THE REQUIRED SIZE OF THE SOIL ABSORPTION SYSTEM IS: /_/... ¢.rJb _-2.:44_64._~. 6 90440 S..]L ARE FEET 170 [:,EF' T~-~= 12 L E~-.~ ~_3T H = 4 ":-~- t3 F-: R'-.." E L [:,EPTH= ;-" THE LENGTH DIMENSION IS THE LENGTH (IN FEET) OF THE TRENCH OR DRAINFIELD. THE DEPTH OF A TRENCH OR PIT IS THE DISTFtNCE BETWEEN THE SURFACE OF THE GROUND AND THE BOTTOM OF THE E',:'CCB'./ATION (IN FEET). THERE IS NO SET WIDTH FOR TRENCHES. THE GRAVEL DEPTH IS THE MINIMUM DEPTH OF GRBVEL 8ETWEEN THE OUTFBLL PIPE BND THE BOTTOM OF THE EXC8VBTION (IN FEET). PERMIT RPPLICRNT HRS THE RESPONSIBILITY TO INFORM THIS DEPRRTMENT DURING THE INSTRLLRTION INSPECTIONS OF' RN'¢ WELLS RDJRCENT TO THIS PROPERTS' ~ND THE NUMBER OF RESIDENCES THRT THE WELL WILL SERVE. BBCKFILLING OF BNM SMSTEM WITHOUT FINBL INSPECTION BND BPPROVRL BM THIS [:,EPRRTMENT WILL BE SUBJECT TO PROSECUTION. MINIMUM DISTRNCE BETWEEN R WELL RND RN'T' ON-SITE SEWRGE [:,I$PO$RL SYSTEM IS !88 FEET F JRt ' R F'RIVRTE WELL ]R 158 TO - ~:8 FEET FROM R PUBLIC WELL DEPEN[:,ING IIPC~N_ - THE TYPE OF FLBLIg.' I ' "WELL. MINIMUM DISTRNCE F~_ff'l" R F'RIVRTE WELL TO R F'RIVRTE SEWER LINE IS~'>~._, FEET RNC, TO R COMMUNITY SEWER LINE I$ 75 FEET. OTHER REQLIIREMENTS MRY RPPLY. SPECIFII]:RTIONS RND CONSTRLICTION [:,IRGRRM$ RRE A ~' J - " ': ' ' '1'1 ' ,~tILHBLE TO IN_URE FR_PER INSTRLLRTION. F"E~.] Z T E::-::P ~ RES g"E~E:E~-]BE~: I CERTIF'¢ TFIAT t: I BM FFIMILIBR WITH THE REQUIREMENTS FOR ON-SITE SEWERS BND WELLS BS SET FORTH BY THE MUNICIF'BLIT'¢ OFH~gL. HUR~UE.-'~ -'-~ 2: I FJILL INSTBLL THE SMSTEM IN HCCORDBNCE WITH THE CODED. g: I UNDERST8ND THBT THE ON-SITE SE~4ER Sb%TEM M~Y REQUIRE ENLARGEMENT IF THE RESI[:'ENC~EMO[:,ELED TO INCLUE~E MORE THBN 4 BEDROOMS. -- ' --- PERFORMED FOR: LEGAL DESCRIPTION: 1 2 3 4 5 6 7 8 9 10 11 12 13- 14- 15 16 17 18 ~9 *."49! 2O COMMENTS g SOILS LOG MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION Pouch 6-650, Anchorage, Alaska 99502 276-222~ SOILS LOG- PERCOLATION TEST [] PERCOLATION TEST )ATE"ERFORMED: 8/Z3 LoT 13. 1'SLocw.. OL. WAS GROUND WATER ~'"~ J'~ ~?'~ I'~ N C O U NT E R E D 7 DEPTH? IF YES, AT WHAT SLOPE SITE PLAN 2225-E 25. 1971 Gross Net Depth to Net Reading Date Time Time Water Drop N RATE (minutes/inch) TEST RUN BETWEEN FT AND ~ FT PERFORMED BY: T~, S r~L,,tit~l/C.~..J~J'~j ~ I CERTIFIED BY: 72-008 (7/76) · " INSPECTION APPOINTMENTS D~'~E RE0kEIVED MUNICIPALITY OF ANCHORAGE ) DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION JUL ~ 825 L Street - Anchorage, Alaska 99501 Telephone 264-4720 - " REQUEST FOR APPROVAL OF INDIVIDUAL WATER AND SEWER FACILITIES DIRECTIONS: Complete aH parts on page 1. Incomplete requests will not be processed, Please allow ten (10) days for processing. 1.~PERTYOWNER ~ PHONE MAILING ADDRESS PROPERTY RESIDENT (If different from above) PHONE 3, LE~DING I~STITUTIOB , 4, REALTOR/AGEnT PHONE 5. LEGAL DESCRIPTION STREET LOCATION ~ /' ' , 6. TYPE OF RESIliENCE ~" NUMBER OF,,BEDROOMS ~ SINGLE FAMILY ~ One ~ Four ~ Two ~ Five ~ MULTIPLE FAMILY ~ Three ~ Six 7. WATER SUPPLY [] Other INDIVIDUAL* COMMUNITY [] PUBLIC UTILITY 8. SEWAGE DISPOSAL SYSTEM *ATTACH WELL LOG. A well log is required for all wells drilled since June 1975. For wells drilled prior to that date, give well depth (attach log if available.) ,~ INDIVIDUAL/ON-SITE** [] PUBLIC UTILITY ,YEAR ON-SITE SYSTEM WAS INSTALLED. NOTE: THE INSPECTION FEE MUSTACCOMPANY EACH REQUEST BEFORE PROCESSING CAN BE INITIATED. THIS SIDE FOR OFFICIAL USE ONLY 1. TYPE OF RESIDENCE NUMBER OF BEDROOMS /~ SINGLE FAMILY [] ONE (~J THREE (~] FIVE [~] OTHER MULTIPLE FAMILY [] TWO ~ FOUR [] SIX PERMIT NUMBER 2. WATER SUPPLY  INDIVIDUAL DEPTH OF WELL [] COMMUNITY DATE DRILLED [] PUBLIC UTI LI'TY Connection Verified LOG RECEIVED 3, SEWAGE DISPOSAL SYSTEM PERMIT NUMBER [] INDIVIDUAL/ON -SITE DATE INSTALLED [--1PUBLIC UTILITY Connection Verified INSTALLER I~Septic Tank or [~Holding Tank Size: If Tank is homemade SOILS RATING give dimensions: TYPE OF TANK MANUFACTURER TOTAL ABSORPTION AREA MATERIAL 4, DISTANCES Septic/Holding Tank Absorption Area Sewer Line I Nearest Lot Line WELL TO: Absorption Area to nearest Lot Line 5, COMMENTS ~APPROV ED FOR ~(~ BEDROOMS ~'ONDITIONAL APPROVAL {letter must acc~y ~ DISAPPROVED 825 "L" STREET ANCHORAGE, ALASKA 99501 (907) 264-4111 ~ ~¢-~ GEORGE M. SULLIVAN, MAYOR DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION July 17, 1980 Estate of Allen/Connie Thompson % Larry Eaton Polar Realty 1101 East 76th Avenue #B Anchorage, Alaska 99502 Subject: Lot 13 Block 2 Prospect Heights Subdivision Approval for your individual sewer and water facilities can not be granted until the following items have been completed: (2) (3) (4) The water facilities were not turned on for this department to obtain a water sample for analysis Please re-schedule an appointment with this department for us to take the sample. Expose the well for our inspection to determine proper construction, also to insure the minimum distance requirements are met between your well and sewer system. Locate and expose the standpipes to the seepage pit and septic tank for our inspection. A four(4) inch cast iron cleanout needs to be installed in the septic tank and seepage pit area. The distance requirements between the well and the seepage pit area is 10.0 feet and 50 feet between the well and septic tank. Larry Eaton July 17, 1980 Page Two If the distance requirement can not be met, the sewer system will need to be upgraded. Prior to any upgrade a soils test will need to be performed so that a permit may be issued. If the sewer system can meet the distance requirements, the following will be needed: (1) The sepbic tank pumped with a receipt submitted to this department. The total ~umber of gallons pumped need to be on the receipt to verify the size of the tank. This will need to be verified by a registered engineer. (2) An adequacy test be performed on the existing leaching area. This test will determine if the system is adequate according to National Standards. A listing of private firms performing the test is enclosed. This report needs to be submitted to this department for our review. If there are any further questions, please call this department at 264-4720. Sincerely, Robert C. Pratt, R.S. Associate Specialist RCP/ljw cc: First National Bank of Anchorage % Una Mo Bennett Southcenter Branch Post Office Box 4-2090 99509 · , ~/' Department of Environmental Quality '-' " ~ 3500 Tudor ~oad, Anchorage· Alaska 99507 279-8686 ] R~QU~ST FOR APPROVAL OF ~ I~IVIDUAL SidER & WAIiR FACILITIES FOR 2. Pro~erty ~ner: 5. Type of Facility ~o be Inspected: ~u~e~ o~ ~oo~,, .... : :~ Well Data: qfc A. Type B. c. construcUon ~./~' D. Depth, Bacterial Analysis 7. Sewage Disoosal System: A. Installed C. Septic Tank: 1, Size D. Seepage Pit: 1. Size Disposal Field: 8. Installer ~. ~aterial...'_~/~ Total Length of Lines Distances: Septic rank~/~ A. Well To: , Absorption Area/~ ! , Nearest Lot Line /~ , Other Contamination Bo Foundation to Septic. Tank c>Q ~ "~, Ab§°rption Area C. Absorption Area to Mearest Lot Line ~ · Sewer Lines ' R--est.fore~u Aporoval of ;~" ~' · ' ividual Sewer & Water Factlitie Page Two 9.'i Comr.~ents: Ap~roved~~'~Disapproved Date Approval Valid for One Year From Date Signed Greater Anchorage Area Borough, Department of Environmental Quality DIAGRAM OF SYSTEM I certify that the information contained in this request for approval to be a true and accurate representation of the subject sewer and water facilities located at: -59© 25 ' 50' 10" E .... Z 280,00 0[- --~ S 59© 25' 10" E 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 OSC251378 Parcel ID 015 -091-13 Expiration Date: 6/12/2026 Legal description PROSPECT HEIGHTS BLK 2 LT 13 Site address 9800 PROSPECT DR Current property owner(s) MABRY PHILLIP H & ANITA L X The On-site system(s) is/are approved for 4 bedrooms Conditional approval for bedrooms, with the following stipulations: Comments or conditions: No comments By: �` - Original Certificate Date: 8/29/2025 This Coftificate of On -Site Systems Approval (COSA) is intended to demonstrate the subject sy ter (s) is/are in substantial compliance with municipal code. The Municipality of Anchorage, evelopment Service 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 submittal. ATTACHMENTS: COSA Checklist X Well Flow Advisory Absorption Field Advisory Nitrate Advisory X Tank Age Advisory Arsenic Advisory Other COSA Checklist_May2025 copy 2.docx COSA Checklist Legal Description: PROSPECT HEIGHTS BLOCK 2 LOT 13 Parcel ID: 015-091-13 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) Date drilled *CIRCA 1966 Total depth 180 ft Cased to UNKNOWN ft Sanitary seal is functioning correctly Wires are properly protected Casing height (above ground) 13 in. Date of flow test for COSA 6/12/24 Static water level at beginning of test 40 ft. Well production at time of test 1.96 gpm Water storage tank volume None gallons Well disinfected for coliform test? Yes No Coliform bacteria is Negative Nitrate 5.62 mg/L Nitrate less than MRL (ND) Arsenic ug/L Arsenic less than MRL (ND) Collected by Date 8/6/25 Comments _*MOA RECORDS STATE “INSTALLED 1966” B. TANK DAT\\ Measured operating fluid level in septic tank NEW Date of pumping NEW TANK Required maintenance completed, if AWWTS Comments: C. LIFT STATION Required maintenance completed Age of lift station years Lift station material Comments: D. DISPOSAL FIELD DATA Which system tested (date installed) 8/27/1980 ALL standpipes present per record drawing Total measured depth from grade 14.8 ft (max) Measured depth to pipe invert from grade 9.3 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 3.6’ 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) N If yes, enter date Adequacy test date 6/12/24 Results Pass Fluid depth prior to test 12 in Water added 1000 gal New fluid depth 43 in (UP TO LATERAL) Elapsed time 1440 min Final fluid depth 12 in Absorption rate 600 gpd FIELD STATUS – POST RECOVERY Effective depth (per record drawings) 84 in (MOA 7’ ED) Effective depth used 53 in (Missing ED + Final Fluid Depth) Effective depth remaining 31 in Comments/Deficiencies: Approximate total measured depths from existing grade. ED per elevation measured shots & appears approximately 41” or 3.4’ of ED is missing – unmeasurable . COSA Checklist_May2025 copy 2.docx E. SEPARATION DISTANCES From Well on Lot to: (Please enter distances if less than required) Septic Tank/Lift Station on Lot > 100’ Yes if No ft Neighboring Tank > 100’ Yes if No ft Disposal Field on Lot > 100’ Yes if No ft Neighboring Disposal Fields > 100’ Yes if No ft Sewer Line/Main > 100’ Yes if No ft Sewer Manhole/Cleanout > 100’ Yes if No ft Sewer Service/Septic Line > 25’ Yes if No ft Holding Tank > 100’ Yes if No ft Animal Containment > 50’ Yes if No ft Manure/Animal Excreta Storage > 100’ Yes if No ft N/A – Served by Community Well (not on lot) or Public Water From Septic/Holding Tank and Disposal Field(s) on Lot to: (Please enter distances if less than required) Tank to Foundation > 10’ Yes if No ft Field to Foundation > 10’ Yes if No ft Tank to Property Line > 5’ Yes if No ft Field to Property Line > 10’ Yes if No ft Water Main/Service Line > 10’ Yes if No ft Surface Water > 100’ Yes if No ft Wells on Adjacent Lots: Wells > 100’ Yes if No ft Community Wells > 200’ 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 FIRST WATER CONSULTING Phone 907-350-9566 Engineer’s Printed Name CURTIS HUFFMAN, PE Date 08/20/2025 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 or NO 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 & 08/20/25 Nitrate Advisory Certificate of On -Site Systems Approval # OSC251378 Subdivision: Prospect Heights , Block: 2, Lot: 13 A water sample revealed a nitrate concentration of 5.62 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. Nitrate Fact Sheet 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. (SEE HOUSE DETAIL) EXIS T I N G BUIL D I N G EXISTING BUILDING EXISTING HOUSE LOT 13 BLOCK 2 EXISTING HOUSE HOUSE DETAIL SCALE: 1"=30' SCALE: 1"=60' 8/27/2025