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HomeMy WebLinkAboutGLENN VIEW ESTATES LT 2 Municipality of Anchorage Page / _ 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: ~lA/ cl~ (2) ~.c~/ PID Number: _~51 - ~_Z~ -- ~ ~ '~": ~d~ -- __~~M~Z~ WastewaterSystem: ~New DUpgrade Phone: No. ol ~e~rooms: 7~g -~OO~~. OOeepTrench ~ Shallow Trench OBed OMound ~Olher Tolal D~plh from original grade: LEGAL DESCRIPTION SoilRating: D.~ GPD/Sq FI ~ 7' LOI: ~ Block: ~/~Subdiy~i°n:~~ ~ Deplh Io pipe bottom from origmal~ grade: Ft Gravel depth benealh pipe~, 7 Ft. Township: Range: Section: Fill added above original grade Gravel length: Number of lines: Distance between lines: WELL: ~ New ~ Upgrade Gravel ~idth: ~ ~ / Classification (Private, A,B,C): ~ Tolal Depth: Cased To: Total absorplion area: Pipe material: Driller: i Date Dr~led: Stalic Water Level: Installer: Yield: Pump Set at~/ Casing Heighl A~ve Ground: SEPARATION DISTANCES As,ptic ~ Ho~din~ ~ S.T.E.,. TO Septic Absorption Lift Holding Public/Private Manufacturer' Capacity in gallons: I ~ Material: ~--~ ~ Number of Compadments: 8izo in 9allons: Man cluror: Foundation /~ ~ /0 ~ .... CudainDrain ~ '" /~¢~/ JO0 ~ Pump~& Model Elec~nspections. pe~/by: Remarks: ~ /~ ~ BENCH MARK Location and DescrJplion: Elevation: ENGINEER'S SEAL ~ OF A~ Inspections penormed by: Dates: Department of Health and Human Se~ices a ~:~,~.~,,: Reviewed and approved by: 72~013 (Rev. 9/91) MOA 25 K D LOT AS-BUILT SYSTEM DETAILS/SITE PLAN LOT 2, GLENN VIEW ESTATES ~o~ Pepmit S~970197 PID~051-521-39 PROPOSE]) 'RESEF VE SEPTIC 1250 OTH T TH SCALE, 1' = 50' vlARY SYST~N ....... .. ~ SEPTIC 4 BDRN SFD LO A-D=30,3' C-D=74,$' A-E=37,P' C-E=77,5' B-F=44,3' C-F=61,9' B-G=84,7' C-G=58,5' GLEN ............ WELL' WELl [_- SCALE~ NTS PREPARED FBR~ '"' REX TURNER ARCTIC 9EVCO, INC, P,O, BUX 3489 PALHER, ALASKA 99645 ,,,]D BOOKS co,~,u,r:D: ZS~ ENGINEEI{ING BOUNDARY .... Dfla~: KMD ns~¢u,.~: LANG BalE: 4'/22/98 LAGLL RIVEIi, AK 99577--8736 *C*" i'm 9705&DWO ,o..o.: 9Z058 (907~696-6111/F~ ~907'696-8111 From FI. From .... Fi, ~o~Fl: From -.--Ft. to~--Ft .... From. Ft. to From ......Ft. to_ ~Ft ...... 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Fea til' & I- ~PR ~ ~8 0£:43PM NTL ~MCHOR~E P~I×~ KND l~ngin~ring 20441 Ptarmigan Blvd, Eagle River, AK 9957%3736 Attn: Client ID: ~3bnview Lot 2 Client l%jeet ff', Source: NTL Lab~: A154920 Sample Matrix: Water COlil.menB: IMethod Parameter NORTHERN TESTING LABORATORIES, INC, ~O ~NDUSTR~AL AVENU~ FAIRBANKS, ALASKA 99701 1907J 455-3116 · FAX 456,312§ ~005 ~CNOON STreET ANCHORAGE, ALASI~A 9951§ (907) 349-1000 · FAX 349-1016 POUCH ~40043 PRUDH06 [JAY, ALASKA 99734 (90?) 65~,2145 · FAX 659-21d6 Report Date: 4/22/98 Date Arriv~]; 4/20/98 Sample Date: 4/20/98 Sample Time: 9:30 Co~ By: M~ = M~R~I D - ~a To Dilution Date Date Units Result MRL Pmp~eA Analyzed SM 4500 NO3 E Nitrate.N mg/L 2,45 1.25 4/21/98 · try Supe~sor APR 22 '98 0£:43PH HTL AHCHORAGE P,2/2 NORTHERN 3330 INDUSTRiAl, AVENUE 80D~ $¢HOON STR~T POUCH 340043 TESTING LABORATORIES, INC, FAIRBANKS, A~ASKA 99701 (907) 456-~116 · FAX 456-3125 ANCHORAGE, ALASKA 99518 (907) 349-1000 · FAX 349-1016 PRUDH0~ BAY, ALASKA 99734 [g0?) 659,2145 · FAX 659-2146 DRINKING WATER ANALYSIS REPORT FOR TOTAL COLIFORM BACTERIA KND Engineering 20441 Ptarmigan Blvd. Eagle River, AK 9957%3736 Phone Number: Fax Number: Collected by: Sample Type: Private water Systems Method of Analvais: Mernbrane Filtration (SM 9222 ~) Comments: 8ample Sample Total* Fecal Other* Date Time Coliform Coliform Bacteria Date Received: 4/20/98 Date Analyzed: 4/21/98 Date Reported; 4/22/98 Next Sample Due: Comments S : U = POS = ND = TNTC = CG = HaM = SA : Cid = R = Resam~le Required NT = No Test * # Colonies/1 o0 mi ** # Colooie$/ml HPC** Reeult Lab~ Location Time Received: 11:50 Time Analyzed: 09:00 Time Rel~orted: 09:33 S stisfa cio ~, Unsatisfacto~ Positive Test Result None Detected Too Numerous To Count (>2.00 Colonies) Conflaent Growth Heavv Sediment Masking. Results May Not Be Reliable Sample Age >30 Hours But <48 Hours, Results May Not Be Reliable SampJe Age >48 Hours, Too Old For Analysis Comments 4/20/98 09:30 0 ND o NT A083§3 GLENNVIEW 1.2 9atlsfaetory Sherd L, Trask Environmental Analyst Northern Testlna Laborate~'ies, Inc Anchorage, AK MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND HUMAN SERVICES P.O. BOX 196650, 825 "L" STREET, ROOM 502 ANCHORAGE, ALASKA 99519-6650 PAGE 1 OF ON-SITE WELL AND WASTEWATER DISPOSAL SYSTEM PERMIT PERMIT NUMBER:SW970197 DESIGN ENGINEER:KND ENGINEERING OWNER NAME:ARCTIC DEVCO INC OWNER ADDRESS:P.O. BOX 3489 PALMER, AK 99645 PARCEL LEGAL DESCRIPTION: ~T~5~~V con NW4 DATE ISSUED: 7/17/97 EXPIRATION DATE: 7/17/98 LOT SIZE: 40000 (SQ. FT.) NUMBER OF BEDROOMS: 4 THIS PERMIT: 4 THIS PERMIT IS FOR THE CONSTRUCTION OF: DISPOSAL FIELD /SEPTIC TANK / WELL SYSTEM 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 343-4744 { 24 HOURS ) (NOT REQUIRED FOR WELL ONLY PERMIT) 4. FROM OCTOBER 15 TO APRIL 15 A SUBSURFACE SOIL ABSORPTION SYSTEM UNDER CONSTRUCTION DURING FREEZING WEATHER MUST BE EITHER: A. OPENED AND CLOSED ON THE SAME DAY B. COVERED, SEALED AND HEATED TO PREVENT FREEZING 5. THE FOLLOWING SPECIAL PROVISIONS. SPECIAL PROVISIONS: RECEIVED BY: ISSUED BY: DATE: ATE: K~'D ENGINEERING 20441 PTARMIGAN BLVD. EAGLE RIVER, AK 99577-8736 [1 (907)696-6111/FAX (907)696-8111 July 1, 1997 Municipality of Anchorage Dept. of Health & Human Services On-Site Services Section P. O. Box 196650 Anchorage, Alaska 99519-6650 Subject: New sewer/well permit - Glenn View S/D, Lot 2 Gentlemen: On June 13, 1997, we excavated two new testholes for the subject property. There is one previous testhole which was dug during the preliminary plat process, however it was not suitably located for the four bedroom house which is proposed for this lot. The results of these tests and water monitoring are attached. We propose to install a 2' wide deep trench. Although the original testhole indicated no water, we did find some water in testhole #2 which is located in a lower portion of the lot and we do not feel is representative of the site. Additional fill will be placed over the system to provide a minimum of 3' of cover when complete. There are no public or private wells within 200' of our proposed system location except as noted. There is neither surface water within 100' nor any curtain drain within 50'. We do not expect that there wilt be any adverse effect on adjacent lots by the development of this system. If you have any questions, please contact me at 696-6111/FAX 696-8111. Respectfully submitted, i_[,~2~J D Engineering MUNICIPALITY OF ANCHORAGE: ENVIRONMENTAL SERVICES DIVISION JUL 0 3 1997 RECEIVED attachments: On-Site Well and Sewer Application Wastewater Absorption System Details/Site Plan Soils Log/Percolation Test WAS-FEWA1-ER LET PROPOSED RESE VACANT LB1 I SYSTEH DETAILS/SITE GLENN VIEW ESTATES S/D PLAN ? LET 2 o VACANT LO LB1 4 WELL GLENN HILL VACANT lOT 17 PROPOSED WELL LOT 16 DESIGN DETAILS VACA O1- 15 I BT 14 "1) PU~]LIE WILL§ WITHIN 200' BF VACAN VACANT LI3T 5 4 BDRM X 150 GPO = 600 GPD 600 GPO/O,8 GPD PER SQ. FT, 750 SQ, FT 750/(7'X2') (7,0' GRAVEL) 53,6 FT, TRENCH [o~a/ depth oF sys-tem is 10.0' From original grade. To'IsoL depth oF gravel below distribution pipe is 7,0' . NOTES', 1, USE i250 GALLON SEPTIC TANK. INSULATE TANK IF (4' CIJVEN, ~, INSULATE TRENCHES WITH 2~ HD BURIAL FOAM,, 3, CI]NTRACTOR WILL ENSURE MAXIMUM 2X SLOPE INTO SEPTIC TANK. 4, ADDITIONAL FILL WILL BE ADDED lIVER SYSTEM TB ACHIEVE MIN, 3' EE]VER IF REQUIRED, PREPARED FBR~ REX TURNER ARCI'IC DEVCO, INC. P.O. BOX 3489 PALMER, ALASKA 99645 I<ND ENGINEERING 20441 PTARHIGAN BLVD EAGLE RIVER, AK, 99577 (907)696-6111/Fax (907)696 8111 SCALE, 1' = loo,/ 97058 si PERFORMED FOR: Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" SIreet, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST 2 3 4 5 6 7 8 9 10 '11 12 13 14 15 16 17 18 19 20 COMMENTS_ 6~ ,~WASGROUNDWATER ENCOUNTERED? s L IF YES, AT WHAT / O DEPTH? p E Deplh Io Waler Alter ,.-1 _ Moniloring? P" f"';~J__ [},,e: Township, Range, Section: ~¢ ~¢ /O SLOPE SITE PLAN Gross Net Depth [o Net Reading Date Time Time Water Drop / ,z; y',::, /~.,,>~ '~ Y,¢" '~/a" ~ ~:~1 ,, ¢i¢" '~/~., ~ ~:~ ,, ~ ....~/~ PERCOLATION RATE 7ESI RUN BETWEEN (m~nules/mchl PERC NOLE DIAMETER __ FT AND ~' ~ FI CERIlFY IHA1 THIS lES1 WAS PERFORMED IN DA] E Municipality o! Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR: LEGAL DESCRIPTION: ~/')/~/'~t~ W~/z~ ~"W ,~/,~ 1 2 3 4 5 6 7 8 ...~ 0 10 11 12 13 14 15 16 17 18 19 20 COMMENTS WAS GROUND WATER ¢¢ ENCOUNTERED?__'~ S L IF YES, AT WHAT ~) / O DEPTH? / P E Oeplh to Water After ' /2/~7 Moniloring? ? Oal~ ~ / SLOPE SITE PLAN Gross Net Depth to Net ReadingDate Time Time Water Drop o ~-iY. q7io ;,-~? - ,t/z ,, _ / /0:9¢ /o,,~ .f/z" /" ~ II: I ~ ID ~ ~ '1~" ~/~" ~ //:~o " ~'~/~" ~/~" PERCOLATION RATE /5 {m,nutes/,nch) PERC HOLE DIAMETER ~ // TEST RUN BETWEEN /~' ''~ FT AND /' J~ FY PER~OR~ED B~ /VD ~-..¢.~.¢~'~".,~//w . CERT,r¥ T.,'~ T.IS TEST WAS PER,O"~ED ,N ACCORDANCE WITH ALL STATE AND MU ALGUfOEL~NES~N EFFEC ' . DATE 72-008 IRev 4/85~ Municipality ol Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 L Street, Anchorage, Alaska 99502-0650 SOILS LOG ~ PERCO~TION TEST LEGAL DESCRIPTION: ¢~ ~/~ ~%~¢¢% Township, Range, Section: 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 ¢/L.-F Z)¢,~ ¢,¢ WAS GROUND WATER ENCOUNTERED? S L IF YES, ATWHAT 0 DEPTH? p E Depth to Waler After SLOPE SITE PLAN Gross Net Depth to Net Reading Date Time Time Water Drop Z.- '" / 7--: 06, -~ 4 /~t/~" I z//6," -~ . /~.; ~,? Z¢ 5 ,l/L," /~//¢,, 4,- . ? .'/o ~o ~ /,,'/i/.,"/~1/o" ~ - ?; ~,, 50 § ~//u" t~;'/1~.', PERCOLATION RATE ~.-¢ 0'(1/ tmmulesnnch) PERC HOLE DIAMETER ~¢2// TEST RUN BETWEEN 0 FT AND /~) .FT COMMENTS MUNICIPALITY E 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. 051-521-39 1. GENERAL INFORMATION Complete legal description GLENN VIEW ESTATES LOT 2 Expiration Date: 7—;z- G -2-V Z. z Location (site address) 23221 GLENN HILL CIRCLE, CHUGIAK, AK 99567 Current property owner(s) GEORGE & NATALIE NEWMAN Day phone Mailing address Real estate agent 23221 GLENN HILL CIRCLE, CHUGIAK, AK 99567 Day phone 2. TYPE OF DWELLING: ® Single Family (w/wo ADU) ❑ Duplex ❑ Multiple Dwellings (Single Family and/or Duplex) 3. NUMBER OF BEDROOMS: 4 4. TYPE OF WATER SUPPLY: TYPE OF WASTEWATER DISPOSAL: Private Well ® Private Septic Water Storage ❑ Holding Tank ❑ Community Well ❑ Community ❑ Public Water System ❑ Public Sewer ❑ Waiver request for: Distance Received by: Date: COSA to be released to the engineer, unless otherwise requested by the engineer. COSA Fee $ Jf=' 5 O Waiver Fee $ Date of Payment 911-1c; &,-L Date of Payment Receipt Number f?Cg 172 Receipt Number COSA # OS C a a 1) HK Waiver # 5. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based on procedures outlined in the Certificate of On -Site Systems Approval Guidelines for this application, shows that the on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is (are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in effect at the time of installation. I acknowledge that On -Site staff may visit the site to verify the information submitted. Name of Firm FIRST WATER CONSULTING Phone 907-350-9566 Address 13030 SUES WAY, ANCHORAGE AK 99516 Engineer's Printed Name CURTIS HUFFMAN, PE Date 4/18/2022 Comments: This investigation was completed in compliance with MOA guidelines, regulations, and best industry practices / methods. The assessment of the condition of the well and septic applies only to the conditions as of the day tested. The flow and absorption rates may change due to subsurface conditions that may not be observed from the surface, changes in land use, local soil characteristics, groundwater levels that may fluctuate during the year, quality of construction (workmanship & materials), the water usage of the family being served by the system and maintenance. The operational life of all well and septic systems are subject to these various and dynamic characteristics and are outside the control of the evaluator of the well and septic system. Therefore, any estimate of how long a system will function satisfactory for current or future occupants or guarantee that no unseen encroachments, deficiencies or discrepancies exist can be given by First Water Consulting & FWCS 6. DSD SIGNATURE System #1 Approved for A bedrooms System #2 Approved for Disapproved Conditional approval for bedrooms OF A�li�� "49 P 1H �9 � y/ • • ' • Curtis Huffman I G,-,• CE 128991 ,• c�`�� r�i1,F0PROF SS ONP�?� bedrooms, with the following stipulations: . iit((((rri., Y Original Certificate Date: - Z �p(,— Z d zZ LI The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. 7. ATTACHMENTS: COSA Checklist X Septic System Advisory Well Flow Advisory Nitrate Advisory Arsenic Advisory Other � ' T Legal Description: GLENN VIEW ESTATES LOT 2 Parcel ID: 051-521-39 If more than 1 septic system on lot: COSA Checklist # _of _ Structure served by this system _ A. WELL DATA ® Well log is filed with Onsite (or attached) Date drilled 8/1997 Total depth 179 ft Cased to 179 ft ® Sanitary seal is functioning correctly ® Wires are properly protected Casing height (above ground) 18+ in. Date of flow test for COSA 4/16/2022 Static water level at beginning of test 128 ft. Comments B. TANK DATA Age of tank(s) 24 years Tank type/material SEPTIC / STEEL Measured operating fluid level in septic tank 50" ® Standpipes/foundation cleanout per record drawing Date of pumping 4/11/22 D. ABSORPTION FIELD DATA Well production at time of test 6.6 gpm Water storage tank volume NA gallons Well disinfected for coliform test? ❑ Yes ® No ® Coliform bacteria is Negative Nitrate 6.91 mg/L ❑ Nitrate less than MRL (ND) Arsenic ug/L ® Arsenic less than MRL (ND) Collected by Date of Sample 4/6/22 C. LIFT STATION ❑ Required maintenance completed Age of lift station — years Lift station material Comments: Which system tested (date installed) 4/22/1998 Adequacy test date 4/16/22 ® ALL standpipes present per record drawing Results M Pass For 4 bedrooms Total measured depth from grade 7.4 ft (max) Fluid depth prior to test 0 in Measured depth to pipe invert from grade 5_3 ft (min) Water added 600 gal ❑ N/A – pressurized field New depth 0 in ® Monitor tubes go to bottom of effective. If not, state Elapsed time <5 MIN min depth into effective IR SHOWS 2.7' 2.5'ED+ ® fluid depth 0 in Code -required soil cover over field Final— ❑ System presoaked Absorption rate 600 gpd (Required if vacant for greater than 30 days prior to Any rejuvenation treatment (past 12 months) N date of test) If yes, enter date Gallons introduced gallons FW'r Comments/Deficiencies: MT/CO AT GRADE. ELEVATIONS TAKE & WITHIN 0.2' ED OF THE 2.7'ED IR:_:. E. SEPARATION DISTANCES From Private Well on Lot to: (Please enter distances if less than required or if community well) Septic Tank/Lift Station on Lot > 100' ® Yes if No Community Sewer Manhole/Cleanout > 100' ® Yes if No ft ® Yes if No Neighboring Tank > 100' ® Yes if No ft Private Sewer/Septic Line > 25' ® Yes if No Absorption Field on Lot > 100' ® Yes if No ft Holding Tank > 100' ® Yes if No Neighboring Absorption Fields > 100' Water Service Line > 10' ® Yes Animal Containment > 50' ® Yes if No ® Yes if No ft Manure/Animal Excreta Storage > 100' Community Sewer Main > 75' ®Yes _ if No ft ®Yes if No From Septic/Holding Tank on Lot to: (Please enter distances if less than required) Building Foundations > 10' ® Yes if No ft Surface Water >' 100 _ ®Yes if No Property Line > 5' ® Yes if No ft Wells on Adjacent Lots: Absorption Field > 5' ® Yes if No ft Private Wells >' 100 _ ®Yes if No Water Main > 10' Yes if No ft Community Wells > 200' Yes if No Water Service Line > 10' ® Yes if No ft If septic tank is under driveway comment below From Absorption Field on Lot to: (Please enter distances if less than required) Building Foundation > 10' ® Yes if No ft If absorption field is under driveway comment below Property Line > 10' ® Yes if No _ ft Wells on Adjacent Lots: Water Main > 10' ® Yes if No ft Private Wells >' 100 _ ®Yes if No ft Water Service Line > 10' ® Yes if No ft Community Wells > 200' ® Yes if No Surface Water > 100' ® Yes if No ft F. ENGINEER'S COMMENTS G. ENGINEER'S CERTIFICATION i certify that l have determined through field inspections and review of Municipal records that the above systems are in conformance with MOA COSA guidelines in effect on this date. Adw �4 ®�,�• • :� Z....e....�:.. . Curfis Huffman `�'c��j�.• CE128991 �$ ��,�,'•.4(19/2;.•'��� �t��® ROFE8S10NP�.. ft ft ft ft ft ft ft ft Nitrate Advisory Certificate of On -Site Systems Approval # OSC 221148 Subdivision: Glenn View Estates lot 2 A water sample revealed a nitrate concentration of 6.6 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. 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. MaUmg�Address P O Box 196650 * Anchorage,$Alaska 99519 6650 *www mum 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 11.org y x= DEVELOPMENT SERVICES DEPARTMENT On -Site water and Wastewater Section www.muni.org/onsite Septic Tank Advisory Certificate of On -Site Systems Approval #OSC 221148 Subdivision: Glenn View Estates lot 2 907-343-7904 Fax: 343-7997 Starting at 20 years of age the MOA issues Advisory's for steel septic tanks The septic tank for this COSA property is 24 years old. A leaking septic tank may be a source of contamination to the aquifer. Typical replacement costs range from $10,000 to $15,000 This advisory must be attached to all copies of the subject Certificate of On -Site Systems Approval. This is an example of a 16 -year-old septic tank. µ h Ma�lmg Address �P O Box 196650 * Anchorage,�Alaska 99519 6650 *www muni arg /�Am (3 ! | i \\\ \\\ \ � \