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Home My WebLink AboutBIRCH HILLS TERRACE #2 BLK 3 LT 7 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 hftp://www.muni.org/onsite On -Site Wastewater Disposal System Permit Permit Number: OSP231256 Work Type: Septic Upgrade Tax Code Number: 05014146000 Site Legal Address: BIRCH HILLS TERRACE #2 BLK 3 LT 7 G:0153 Site Mailing Address: 11312 FIREBALL ST, Eagle River Owner: ABTS DANIEL P Design Engineer: C&M ENGINEERING SERVICES This permit is for the construction of: Effective Date Expiration Date: Lot Size in Sq Ft: Total Bedrooms: �l»cnr F.. Uehartuient 9/1/2023 8/31/2024 37817 Q 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 A ,t Special Provisions: • A test hole is required prior to construction of the absorption field, in the location shown on the site plan, to confirm minimum separation to impermeable soil and seasonal high groundwater, as well as percolation ` rate. Construction may proceed at your own risk prior to 7 -day groundwater monitoring. If results require a design change, construction shall stop pending approval of a change order. Please submit results with the inspection report (or change order, if required). may: L SS �e +0 C, Issued By: Date: Date: Aa RJIUMUPA UTY OF ' HCHOR j4 GE r�� Development Services Department a Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 ON-SITE SEPTIC/WELL PERMIT APPLICATION Parcel I.D. 050141460 Property owner(s) ABTS Mailing address Site address 11312 FIREBALL ST Day phone Legal description (Sub'd., Block & Lot) BIRCH HILLS TERRACE #2 BLK 3 LT 7 Legal description (Township, Range & Section) Lot Size 37,817 Sq. Ft. Number of Bedrooms 5 APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING: (® all that apply) Absorption Field E] Initial ❑ Single Family (SF) ❑ Septic Tank ❑ Upgrade (w/wo ADU) Holding Tank ❑ Renewal ElDuplex (D) El Privy ❑ Multiple Dwellings ❑ (SF and/or D) Private Well ❑ Water Storage ❑ THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: NONE Distance: NA I certify that the above information is correct. I further certify that this is in accordance with applicable Municipal Codes. C&M ENGINEERING (Signature of property owner or authorized agent) Permit/Rush Fees:. . 5q'5- Waiver Fees: Date of Payment: 155�23 Date of Payment: Receipt Number: __ � Receipt Number: Permit No. Q5 P---2 2, 12 5(5 Waiver No. G:\Development Services\Building Safety\On Site Water and Wastewater\Forms\Client Forms\Permit Application.doc C&M ENGINEERING SERVICES Ph: 907-854-5558 Municipality of Anchorage Onsite Water & Wastewater Program 4700 Elmore Rd Anchorage, Ak 99507 RE: Proposed Septic System for BIRCH HILLS TERRACE BLOCK 3 LOT 7 Dear Reviewer, The above referenced property is currently served by an older FAILED septic system. We are requesting a permit to increase the size of the system to accommodate up to 5-bedrooms. Our review of available documentation and field investigation show that this project will not adversely impact any nearby Wells, Wastewater disposal systems, replacement disposal sites, or drainage flowing onto and off of the subject property. As shown on the plan, the tank and field will be greater than 10’ from the house foundation. The tank will be of MOA approved construction. The tank shall be covered with a minimum of 2” moa approved insulation and 3’ of cover or a minimum of 4’ of cover without insulation. The design is based on the testhole logged by fwcs in 2023. We are proposing to excavate and additional testhole on the lot as shown during construction. The reserve site will be located near the FWCS testhole. Upon completion of the installation, a record drawing will be submitted showing the location of the new tank, leach field, well, and other applicable features. The department has requested that a conditional cosa application be submitted to accompany the permit. We are requesting that the conditional cosa be issued with the following conditions: 1. The submitted water samples are older than 90-days. We are requesting the cosa be issued conditionally based on those results and the new results to be submitted once available. 2. The samples show nitrate results greater than 5 mg/L. We are requesting that the cosa be issued with conditionally and results of camer-ing of the well casing, and or repairs if necessary be submitted once completed. 3. The septic needs replaced. We are requesting the cosa be issued conditionally with a requirement for the new septic system to be installed. We anticipate the conditional items to completed and documentation for the water samples, well camer- ing / repair, and septic records by Oct 31, 2023. The conditional COSA is justified because the property has reportedly already changed hands and was requested by the department. The home is currently unoccupied and is not intended to be occupied until the work is complete, minimizing the risk to health and public safety. Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP231256, Deb Wockenfuss, 09/01/23 Thank you for your time in reviewing this permit request. Please do not hesitate to contact me at 907-854- 5558 or by email cgbalzarini@gmail.com with any questions or concerns. Sincerely, Charles Balzarini, PE 7/28/23 Residence: BIRCH HILLS TERRACE 2 L7 B3 number of bedrooms 5 br Water usage/bedroom 150 gpd/br Water Usage 750 gpd system type: Conventional type: Deep Trench Application Rate 1.2 gpd/sqft required absorption area 625 sqft trench width (W) 2 ft MIN gravel depth (D) 8 ft Min Required Length: 39.0625 ft Groundwater Depth dry Calc By: CGB Date: 7/19/2023 C&M ENGINEERING SERVICES 907-854-5558 Septic Design Calculations RESIDENCE/LOT INFO DRAINFIELD USE 1 EA 42' TRENCH REFER TO PLANS FOR DETAILS OF CONSTRUCTION Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP231256, Deb Wockenfuss, 09/01/23 BIRCH HILLS TERRACE BLOCK 3 LOT 7 CHARLES G BALZARINI CE-13854REG ISTEREDPROFE S S I O N A L E N GINEER 5/9/23 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP231256, Deb Wockenfuss, 09/01/23 CHARLES G BALZARINI CE-13854REG ISTEREDPROFE S S I O N A L E N GINEER 7/28/23 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP231256, Deb Wockenfuss, 09/01/23 3030 Sues Way - Anchorage, Alaska 99516 Tel. 907-350-9566 firstwaterAK@gmail.com SOILS LOG - PERCOLATION TEST LEGAL : BIRCH HILLS TERRACE #2 B3, L7 PERFORMED BY: FWC - I CURTIS HUFFMAN CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE & MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 5/19/2023 DEPTH FEET OG SOILS 1 2 ORG/OL 3 4 5 6 GM/gp 7 8 9 10 11 12 13 14 15 16 17 BOH 18 19 20 Reading Date Gross Time Net Time Depth to Water Net Drop 5/16/23 10 min 6 3 10/16 6 3 9/16 6 3 7/16 6 3 8/16 6 3 8/16 6 3 7/16 PERCOLATION RATE 3 (MIN / INCH) TEST RUN BEWTWEEN 4 & 5 FT PERC HOLE DIAMETER 6 PRE-SOAKED PRIOR TO TEST & ALL READINGS TO THE 1/16TH. GROUND WATER ENCOUNTERED: NO IF YES, AT WHAT DEPTH: NA DEPTH TO WATER AT MONITORING: DRY DATE: 5/19/23 TESTHOLE # 23-1 DATE PERFORMED: 5/10/2023 SEE SITE PLAN FOR SLOPE & LOCATION COMMENTS: VERIFY GROUNDWATER MT AT TIME OF CONSTRUCTION PERFORMED FOR: VOEGELE TRUST / ALAN LEBEL 5/19/23 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP231256, Deb Wockenfuss, 09/01/23 30 ) 30 ) 0) LOT 7 PAVED • BLK 3 D/ . W Lam! 0 0 _j < 0 LLJ 03 2 LLJ 42.3' 0 0 — , o .0- WELL 0 r , C) s� co 0 0 0 ANCHORAGE RECORDING DISTRICT, ALASKA AS—BUILT OF: BIRCH HILLS TERRACE Not LOT 7 BLOCK 3 PLAT 72-40 SURVEY CERTIFICATE: 1, John L. Schuller, Have conducted a physical survey of this property as shown on this drawing and that the improvements situated hereon are within the property lines and no enchroachments exist other than noted. Under no circumstance shout( any information on this drawing be used for construction of fences, structures, improvements, or for establishing boundary lines. EXCLUSION NOTES: It is the owners responsibility to determine the existence of any easements, covenants, or restrictions which do not appear on the recorded subdivision plat. WORK ORDER NUMBER: DATE: SCALE; E—MAIL- MAY 9, 2023 1 "=40' schullerOak.net 23-038 DRAWN BY, ICHECKED BY,, GRID NUMBER: BOO}( AGE: JLS NW01 53 230146 * = FND 5/8" REBAR _"141 .a OF 4LSUR V46�' A' - 40� C�) 49TH ?7 ......... .......... . ... ...... ?A ........ .. . JOHN L. SCHULLER.- LS-10408 ew 1831 Talkeetna Street Anchorage, Alaska 99508 1� OfeSSjon& A14W (907) 227-1455 office 'q ANOW (907) 274-4992 fax SRE'- R ANCHORAGE AREA BO' "JSH Department of Environmental Quality 3330 C Street Anchorage, Alaska 99503 INSPECTION REPORT ON-SITE SEWAGE DISPOSAL SYSTEM LEGAL DESCRIPTION PHONE g,,;,.. SEPTIC TANK: DISTANCE FROM WELL INSIDE LENGTH MANUFACTURER ~ MATERIAL L.- COMPARTMENTS ~ INSIDE WIDTH LIQUID DEPTH __.LIQUID CAPACITY /00~ GALLONS. SEEPAGE PIT: NUMBER OF PITS / . DIAMETER ~:~0' OR WIDTH l~r", LENGTH__,/~'f DEPTH 71 LINING MATERIAL LO(.~' CRIB SIZE: DIAMETER ~1 DEPTH ql DISTANCE FROM: BUILDING FOUNDATION q~l, NEAREST LOT LINE ~2~i TOTAL EFFECTIVE WELL 120' ABSORPTION AREA (WALL AREA) /~9~) SQ. FT. ADDITIONAL ABSORPTION WELL: *Y PE~'~ I I-I-~ CONST RUCTION gT~ld ~l~l~D DEPTH II-/ BUILDING NEAREST NEAREST SEPTIC FOUNDATION __, LOT LINE , SEWER LINE , TANK__ CESSPOOL , OTHER SOURCES APPROVED DISAPPROVED REMARKS DISTANCE FROM: SEEPAGE SYSTEM DISTANCES: DIAGRAM OF SYSTEM INSTALLED BY: PIPE MATERIAl · LOT SLOPE: REMARKS: Form No. EQ-031 t DATE ~/1~/"'7 ~t /'7'/ INSTALLATION LOCATION LEGAL DESCRIPTION~_~ GREATEr ANChOrAGE Area BOrOUgh DEPARTMENT OF ENVIRONMENTAL QUALITY 3330 "C" STREET ANCHORAGE, ALASKA 99503 TELEPHONE 274-456! PERMIT NO. SEWAGE DISPOSAL SYSTEM -- APPLICATION AND PERMIT INSTALLATION Of: SEPTIC TANK TYPE AND SIZE OF FACILITY TO BE SERVED ~ .~, SEEPAGE PIT TO BE INSTALLED BY DRAIN FIELD OTHER NOTE: THIS PERMIT IS NOT VALID WITHOUT SOIL TEST FINANCED THROUGH COMPLETION DATE ANTICIPATED FINAL INSPECTION: 24 HOUR NOTICE REQUIRED. BACKFILLING OF ANY SYSTEM WITHOUT FINAL INSPECTION BY THE DEPARTMENT OF ENVIRONMENTAL QUALITY AUTHORITY WILL BE SUBJECT TO PROSECUTION. SEPTIC TANK SIZE MINIMUM DISTANCES, REOUIREME/~TS FOUNDATION TO SEPTIC TANK ~ FOUNDATION TO SEEPAGE PIT ~6 /~ . . DRAIN FIELD SEPTIC TANK TO SEEPAGE PIT Wall !' /~ / SEPT,C TANK ~ -26 / , SEEPAGE PIT , DRAIN FIELD TO NEAREST LOT LINE. WELl TO SEPTIC taNK //~--~//* SEEPAGE Pit /~ ~) DRAIN FIELD SEEPAGE AREA SIZE ALSO CONSIDER AREA WELLS. WATER MAIN tO SEPTIC TaNK SEEPAGE PIT DRAIN FIELD ldo / /dO/ SEPTIC TANK, . SEEPAGE PIT , DRAIN FIELD TO RIVER, LAKE, STREAM. CAST IRON INTO AND OUT OF SEPTIC TANK AND INTO CRIB CROSSING GAP OF EXCAVATION 5 FEET INTO UNDISTURBED SOIL. 4 INCH DIAMETER CAST IRON SIPHON PIPES ON SEPTIC TANK AND SEEPAGE Pit FITTED WITH AIRTIGHT REMOVABLE CAPS. GRAVEL BACKFILL CONFORM TO BOROUGH REGULATIONS REGARDING INSTALLATION. i;/ G .A .A .B. OR ~ ': LICENSED DESIGNER TYPE DIAGRAM OF' SYSTEM I CERTIFY THAT I AM FAMILIAR WITH THE REQUIREMENTS OF GREATER__~ ANCHORAGE AREA BOROUGH ORDINANCE NO 28-68 AND THAT THE ABOVE DESCRIBED SYSTEM IS IN ACCORDANCE WITH SAID CODE ..~ '' ~ '~ ~' ~' ~ ~ r FORM NO, LQ'01 6 Performed for Legal Description: This form reports: GREATER ANCHORAGE AREA BOROI Jepartment of Environmental Qk 3330 "C" Street Anchorage, A1 aska 99503 SOILS LOG - PEROLATION TEST Harry Maokey nat '/, ,s:cevz' * Soils log YeS Percolation test Depth Feet 2- 3- 4 5- 6- 7 8- 9- 10- ll - 12- 13- 14.- Silty Sand Gravel with Large Cobbles (GM) Inlet. Well Graded Sand and Gravel with a few Cobbles SW Bottom of Pit Was ground water encountered? No If yes, at wl~at depth? Reading Date Gross Time Net Time Depth to Water Net Drop Percolation rate minute. .Proposed installat=-~O-~o,n?-~'~a--qe Pit Yes Drain Fie'Id 'Oepth of Inlet-~ ' Depth to bottom of [)it or trench --'"~6 g'i'--A- 7 -H-a-u-J ~. ......... L ab EQ.-040 (6/74) MUNICIPALITY OF ANCHORAGE Development Services Department `' =l7 Phone: 907-343-7904 On -Site Water & Wastewater Section Fax: 907-343-7997 Parcel I.D. 050-141-46 Certificate of On -Site Systems Approval Expiration Date: 10/31/23 Legal description BIRCH HILLS TERRACE #2 BLK 3 LT 7 Site address BIRCH HILLS TERRACE #2 BLK 3 LT 7 Current property owner(s) ABTS DANIEL P The On-site system(s) is/are approved for bedrooms X Conditional approval for 5 bedrooms, with the following stipulations: Comments or advisories: ** COSA not to be used for a property transfer ** Conditions to be addressed by October 31, 2023: 1. Due to the undocumented well and nitrates over 5 mg/L, the casing is to be checked for perforations using a camera. 2. The new septic system is to be installed and permit closed by 10/31/23. By: c Original Certificate Date: 9/1/23 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 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 Application 1. GENERAL INFORMATION Parcel I.D. 05014146000 Complete legal description BIRCH HILLS TERRACE #2 B3 L7 Location (site address) 11312 FIREBALL ST Current property owner(s) ABTS 2. ON-SITE SYSTEMS SIZED FOR 5 BEDROOMS Day phone 3. TYPE OF WATER SUPPLY: Q 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 W Plastic ❑ Concrete ❑ Fiberglass Age 0 - See advisory if steel older than 20 years 6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed [W Deep Trench ❑ Wide Trench ❑ Seepage Pit Waiver request for: Expedited review requested: R 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 $ I � 0 Waiver Fee $ Date of Payment COSA # 05C 2 e� 13 3 � Date of Payment Waiver # COSA Application—June 2022 COSA Checklist_June 2022 COSA Checklist Legal Description: Parcel ID: 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 Total depth ft Cased to ft Sanitary seal is functioning correctly Wires are properly protected Casing height (above ground) in. Date of flow test for COSA Static water level at beginning of test ft. Well production at time of test 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 Arsenic less than MRL (ND) Collected by Date Comments __________________________________________________________________________________ B. TANK DATA Measured operating fluid level in septic tank Date of pumping Required maintenance completed, if AWWTS Comments: C. LIFT STATION Required maintenance completed Age of lift station years Lift station material Comments: D. ABSORPTION FIELD DATA Which system tested (date installed) ALL standpipes present per record drawing Total measured depth from grade ft (max) Measured depth to pipe invert from grade 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) If yes, enter date Adequacy test date Results Pass Fluid depth prior to test in Water added gal New fluid depth in Elapsed time min Final fluid depth in Absorption rate gpd FIELD STATUS – POST RECOVERY Effective depth (per record drawings) in Effective depth used in Effective depth remaining in Comments/Deficiencies: 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’ Yes if No ft Neighboring Tank > 100’ Yes if No ft Absorption Field on Lot > 100’ Yes if No ft Neighboring Absorption Fields > 100’ Yes if No ft Community Sewer Main > 75’ Yes if No ft Community Sewer Manhole/Cleanout > 100’ Yes if No ft Private Sewer/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 Absorption Field(s) on Lot to: (Please enter distances if less than required) Building Foundations > 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 > 10’ Yes if No ft Water Service Line > 10’ Yes if No ft Surface Water > 100’ Yes if No ft Wells on Adjacent Lots: Private 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 Phone Engineer’s Printed Name Date C&M ENGINEERING CHARLES BALZARINI, PE 8/30/23 C&M ENGINEERING SERVICES Ph: 907-854-5558 Municipality of Anchorage Onsite Water & Wastewater Program 4700 Elmore Rd Anchorage, Ak 99507 RE: Proposed Septic System for BIRCH HILLS TERRACE BLOCK 3 LOT 7 Dear Reviewer, The above referenced property is currently served by an older FAILED septic system. We are requesting a permit to increase the size of the system to accommodate up to 5-bedrooms. Our review of available documentation and field investigation show that this project will not adversely impact any nearby Wells, Wastewater disposal systems, replacement disposal sites, or drainage flowing onto and off of the subject property. As shown on the plan, the tank and field will be greater than 10’ from the house foundation. The tank will be of MOA approved construction. The tank shall be covered with a minimum of 2” moa approved insulation and 3’ of cover or a minimum of 4’ of cover without insulation. The design is based on the testhole logged by fwcs in 2023. We are proposing to excavate and additional testhole on the lot as shown during construction. The reserve site will be located near the FWCS testhole. Upon completion of the installation, a record drawing will be submitted showing the location of the new tank, leach field, well, and other applicable features. The department has requested that a conditional cosa application be submitted to accompany the permit. We are requesting that the conditional cosa be issued with the following conditions: 1. The submitted water samples are older than 90-days. We are requesting the cosa be issued conditionally based on those results and the new results to be submitted once available. 2. The samples show nitrate results greater than 5 mg/L. We are requesting that the cosa be issued with conditionally and results of camer-ing of the well casing, and or repairs if necessary be submitted once completed. 3. The septic needs replaced. We are requesting the cosa be issued conditionally with a requirement for the new septic system to be installed. We anticipate the conditional items to completed and documentation for the water samples, well camer- ing / repair, and septic records by Oct 31, 2023. The conditional COSA is justified because the property has reportedly already changed hands and was requested by the department. The home is currently unoccupied and is not intended to be occupied until the work is complete, minimizing the risk to health and public safety. Thank you for your time in reviewing this permit request. Please do not hesitate to contact me at 907-854- 5558 or by email cgbalzarini@gmail.com with any questions or concerns. Sincerely, Charles Balzarini, PE 7/28/23 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT 907-343-7904 On-Site Water and Wastewater Section Fax: 343-7997 www.muni.org/onsite Mailing Address: P. O. Box 196650 * Anchorage, Alaska 99519-6650 * www.muni.org Nitrate Advisory Certificate of On-Site Systems Approval # OSC231337 Subdivision: Birch Hills Terrace #2, Block: 3, Lot: 7 A water sample revealed a nitrate concentration of 5.2 milligrams per liter (mg/L). 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. Mailing Address: P. O. Box 196650 * Anchorage, Alaska 99519-6650 * www.muni.org 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.