HomeMy WebLinkAboutHIDDEN HILLS BLK 1 LT 29Municipality of Anchorage
On -Site Water and Wastewater Section - (907) 343-7904 Page of
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: OSP251427 PID Number: 011-121-54
Dwelling: MR Single Family (SF) R with ADU ❑ Duplex (D) F1 Two Single Family Project: F New F Upgrade
Name
Morton, Jeanette Revocable Trust
ABSORPTION FIELD
F-1 Deep Trench El Wide Trench F Bed [Jo8und
Site Address
7800 Lucy St., Anchorage
El Other z
Phone
Number of Bedrooms
Soil Rating
Total depth fr9K original grade
13
GPD/SF
'1Z Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
Ft.
71
ravel depth beneath pipe
Ft.
Subdivision Block Lot
Hidden Hills, Block 1, Lot 29
Fill added above original gr
1_111''� Ft.
Gravel length
Ft.
Township Range Section
lGravel width
Ft.
Beds: Number of Lines
Distance between lines
Ft.
SEPARATION
DISTANCES
To!
Septic i Absorption
Holding
Lift Station !
Sewer
Total a rption area
Number of trenches
Dist. between trenches
F
From
Tank Field
ITank
Line
Ft
Ft.
Well
>100j; 101.3
TANK X Septic C1 S.T.E.P. 71 Holding ❑ Other
Manufacturer
Greer/Anchorage Tank
Capacity
1000 Gat.
Surface Water
>100i 100+
Material P
HDE
Number of compartments
2
Lot Line
>10 1 10.1
NA
Foundation
>10 50.7
LIFT STATION
Manufacturer
-
Capacity
Gal.
Remarks Aborption field Distance from File
Alarm location
Electrical installed by
PIPE MATERIAL House to tank Tank to
P VC3036drainfield PVC306
Installer
CIC General
Drainfield C01MT PVC30b
Inspector C. Leet, Alaska Rim Engineering
BENCH MARK (Assumed elevation) 100 ft
Inspection 1,1 1/3/26 1/3/26
dates:
Location and description
24
3'd 1/4/26 41t'
threshold garage man door
ON-SITE WATER AND WASTEWATER SECTION APPROVAL
Conditional Approval: Date
OW
Septic Syste
)y Ste
Approved
Dat
0 te� this approval:do�esnot include well permit requirements.
(Rev 05/02/1 fO
I IUff U I I— I Z 1 —3-+ 1 RECORD DRAVVINGS I I I
INVERT
97.-1.
''
RES -NCE
L OT/"'
0
B
,;CK I
100,
WELL g it
RADIUS
FINISH GRADE
INVERT OUT 915.20'
SYSTEM CRITERIA:
NUMBER OF BEDROOMS:
GALLONS PER DAY:
NOTES:
1, BUILDING SEWER DRAIN FROM HOUSE TO
SEPTIC TANKS SHALL BE ASTM D2751/2661
2. EFFLUENT PIPE SHALL BE SDR 35 ASTM 3034
3. THE EXISTING TANK MALL BE DECOMMISSIONED
PER UPC AND AMC CHAPTER 15.65.
4. CONTRACTOR SHALL HAVE WELL RADIUS
FLAGGED BY A REGISTERED LAND SURVEYOR,
OR OTHER APPROPRIATE MEANS PRIOR TO
CONSTRUCTION.
KEYNOTES:
F-ij NEW 1000 GAL. POLY SEPTIC TANK
OA Sl,',,'IN-, TIE "A"
S'NING TIE "B"
BENCH MARK LOCATION
NOT USED
3
450
SWIN-G TIES
DESCRIPTION
A
B
C
STMH!
73.2
47.1
STV1
62.8
46.5
ALASKA RIM ENGINEERING
1920 N. Kentucky Derby Drive
Palmer, Alaska 99645
PH: (907)775-2347
4TH EMAIL: aloskarimengineering.11cggrnaii.com
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APACE: 2 OF 21REV 1/4/2026
. 2 .... . .......... !RELI,
Leet Consulting Civil Engineers : Planners SCALE: 1" `410: 2025091
Charles A.
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HIDDEN HILLS, BLOCK 1, LOT 29
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Permit Number:OSP251427
Tax Code Number:01112154000
Work Type:SepticTank Upgrade
Effective Date:
Design Engineer:
Site Legal Address:HIDDEN HILLS BLK 1 LT 29 G:2222
Owner:MORTON JEANETTE REVOCABLE TRUS
Site Mailing Address:7800 LUCY ST, Anchorage
Lot Size in Sq Ft:15180
Total Bedrooms:3
This permit is for the construction of:
Disposal Field Septic Tank Holding Tank Privy
Non-Public
Water 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. Coodinate with On-Site staff regarding preferred method.
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
12/8/2025
12/8/2026
ALASKA RIM ENGINEERING
Expiration Date:
¨þ ¨¨¨¨
Issued To:
Issued By:
Date:
Date:
12/8/2025
12/8/2025
ALASKA RIM ENGINEERING
Isatou B Njie
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
MUNICIPALITY
Development Services Department (�` r } Phone: 907-343-7904
On -Site Water & Wastewater Section 'f
ON-SITE SEPTIC/WELL PERMIT APPLICATION
Parcel I.D. 011-121-54
Property owner(s) Jeanette Morton Day phone
Mailing address 7800 Lucy St., Anchorage, Ak 99502
Site address 7800 Lucy St.
Legal description Hidden Hills Block 1, Lot 29
Number of Bedrooms 3
Engineering Firm Alaska Rim Engineering
Building Permit Number Not Applicable; ❑
APPLICATION IS FOR: APPLICATION IS AN:
(® all that apply)
Disposal Field ❑ Initial
Septic Tank Q Upgrade
Holding Tank ❑ Renewal
Privy
Well
Water Storage
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Distance:
I I I��I ■ IOIIIIII�I III111�I I �� I�� I ���I IrIIII
Permit/Rush Fees:Waiver Fees:
Date of Payment: Date of Payment
Permit No. OV)41"07 Waiver No.
May 2025
ARE, LLC
dba ALASKA RIM ENGINEERING
CONSULTING CIVIL ENGINEERS & PLANNERS
1920 Kentucky Derby Dr.
Palmer Alaska 99645
Telephone: 907.775.2347
Email: alaskarimengineering.llc@gmail.com
Professional Consulting --- Practical Solutions
ARE LLC, project # 2025091
December 5, 2025
Municipality of Anchorage, D.S.D.,
On-Site Water and Wastewater Department
4700 Elmore Road, Anchorage, AK, 99519
Re: Hidden Hills, Block 1, Lot 26
7800 Lucy Street.
Parcel ID 011-121-54
Subject: Septic Tank Replacement/Upgrade
Design Narrative and Permit Application
Dear Plan Reviewer,
During a mortgage inspection, it was discovered that the septic tank of the referenced three -
bedroom home was leaking and now requires replacement.
SEPTIC TANK REQUIREMENTS
We propose to remove the existing tank after it has been pumped. The tank will be decommissioned
per UPC and MOA Codes. A new 1,000 plastic septic tank will be installed in the same location as
the old one. 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.
DRAIN FIELD CONNECTION
We are proposing to connect the existing building service line to the new septic tank and to the
existing outlet line as determined in the field.
SURFACE WATERS
There is no surface water within 100 feet of the proposed tank. Drainage arrows on the site plan
indicate the slope and direction of stormwater runoff. (See attached site plan)
WELLS & DRINKING WATER
There are no water wells within 100 feet of the proposed tank. The property is served by a private
well.
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251427, Isatou Njie, 12/08/25
Hidden Hills, Block 1, Lot 29 Page 2 of 2
December 5, 2025
Alaska Rim Engineering
Professional Consulting --- Practical Solutions
ARE LLC, project # 2024051
SURROUNDING PROPERTIES
We do not anticipate any adverse effects on the neighboring septic systems, reserve areas or drainage
patterns by the installation of the proposed septic tank replacement.
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.
Sincerely,
December 5, 2025
Charles A. Leet, P.E.
Principal Engineer
Attachments:
• Permit application
• Asbuilt
• Overall Site Plan
• Tank Replacement Plan
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251427, Isatou Njie, 12/08/25
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251427, Isatou Njie, 12/08/25
30.3'
9.1'
4.0'
9.0'
9.0'
11.0'
16.1'
33.3'
25.3'
12.0'
32.1'
11.6'
2.0'
38.8'
COVERED
PORCH
RESIDENCE
8'x10'
SHED
GAS
ELEC.
LEGEND
FOUND 5/8" REBAR, NO CAP
FENCE
APPX. EDGE OF ASPHALT
RECORD DATA PER PLAT #70-338
SEPTIC PIPE
WELL
GUY WIRE
DECK
TIMBERLINE SURVEYING AND MAPPING
17035 BARONOFF AVE
EAGLE RIVER, AK 99577
907-242-5320
ryan@timberlinealaska.com
FILE NO.: 25.259
SCALE: 1" = 20 FEET
DATE: 12/1/2025
SHEET: 1 of 1
MOA GRID: SW2222
SCALE: 1" = 20 FEET(11"x17")
20'0' 40'
AS-BUILT OF:
ADDRESS: 7800 LUCY ST, ANCHORAGE, AK
LOCATED IN: ANCHORAGE RECORDING DISTRICT
LOT 29, BLOCK 1HIDDEN HILLS SUBDIVISIONPLAT #70-338
GREATER ANCI4ORAGE AREA BOROUGH
O DEPARTMENT OF ENVIRONMENTAL QUALITY PERMIT NO.
3330 "C" STREET ANCHORAGE:, ALAS:'(A 99503
~ SEWAGE DISPOSAL SYSTEM -- APPLICATION AND PERMIT
PHONE
INSTALLATION LOCATION
LEGAL DESCRIPTION ~'
INSTALLATION OF: SEPTIC TANK
FINANCED THROUGH
SOIL TEST RESULTS ~¢~
MINIMUp¢I DISTAI~CE~. REQUIREMENTS
K~UN~ATION TO SEPTIC TANK
FOUNDATION TO SEEPAGE PIT ___
· DRAIN FIELD
WELL TO S EPTI C TA N K~-'/'~ ~'~'~ '~ /
DRAIN FIELD
., DRAIN FIELD
SEPTIC TANK, ~ ~ / , SEEPAGE Pl'r
(o-o t
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
CONPORM TO BOROUGFI REGULATIONS REGARDING INSTALLATION.
R&M ENG..,ff:ERING & GEOLOGIC . CONSULTANTS
229 EAST 51st. AVE. - P.O.,BOX 6087 - ANCHORAGE, ALASKA 99503
TELEPHONE 907--279-0483 TELEX 090-35419
Civil Engineers Geologists Land Surveyors
JAMES W. ROONEY, P. E,
MALCOLM A. MENZIES, P.E., L.S.
JAMES H *'
· V,E LLMAF/, P.E.
July 31, 1973
RALPH Fi. MIGLIACClO
Engineering Geologist
Mr. Donald Combs
4915 West 84th Avenue
Anchorage, Alaska
Re: Test Hole and Soil Log Report for Sanitary System
Lot 29, Block 1, Hidden Hills Subdivision
Dear Mr. Combs:
We are submitting herewith the test boring results and our
comments regarding soil conditions encountered at the subject
site. This investigation was performed in accordance with
your request of July 31, 1973, and those procedures outlined
in a letter dated September 13, 1971 by Mr. Rolf Strickland
of the Greater Anchorage Area Borough Department of Environ-
mental Quality.
A single test hole was put do%~ within the Lot 29 area for the
purpose of defining general subsurface soil conditions for the
proposed sanitary system. Excavation was accomplished with a
tractor-mounted backhoe and the test hole was extended ~o a
total depth of 14 feet below ground surface. The final log
prepared for the test hole has been included in Drawing A-01.
Ground water was not encountered in the test hole.
We appreciate being given this opportunity to be of service to
you. Should you have any questions with regard to the above,
please do not hesitate to contact us.
Very 'truly yours,
R & M ENGINEERING & GEOLOGICAL CONSULTANTS
./,. ,I:?mes W. Rooney
zc: GAAB v/~
T.H.-I
7 - ;51 - 7;5
0.0'
SILT~ TRACE SAND (ML)
SANDY GRAVEL TRACE
SILT (SW)
SILT, SOME SAND (SM)
(~.0~
SANDY GRAVEL TRACE
SILT (SW)
SANDs TRACE SILT (SP)
9,0'
I0.0'
SANDY GRAVEL TRACE
SILT (SW)
14.0'
No Water Table T.D.
Note: Test hoie excovoted with tractor mounted bacAhoe.
Engineering ~ Geologic(~l Consultants
Donald Combs Contrdctor
LOG OF TEST HALF_
Anchordge Aldskd
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
OSC261000
Parcel ID 011 -121-54 Expiration Date: 11/24/2026
Legal description HIDDEN HILLS BLK 1 LT 29
Site address 7800 LUCY ST
Current property owner(s) MORTON JEANETTE REVOCABLE TRUS
X The On-site system(s) is/are approved for 3 bedrooms
Conditional approval for bedrooms, with the following stipulations:
Comments or conditions:
By:
Original Certificate Date:
1/21/2026
This rtific to of On -Sit Systems Approval (COSA) is intended to demonstrate the subject
s tem(s) is/are in substantial compliance with municipal code. The Municipality of Anchorage,
Development 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
Absorption Field Advisory
Tank Age Advisory
Other
Well Flow Advisory
Nitrate Advisory X
Arsenic Advisory
MUNICIPALITY OF
Development Services Department
On -Site Water & Wastewater Section
ANCHORAGE
Phone: 907-343-7904
Fax: 907-343-7997
Certificate of On -Site Systems Approval Application
1. GENERAL INFORMATION
Parcel l.D. 01112154000
Complete legal description Hidden Hills 131 L29
Location (site address-) 7800 Lucy St.
Current property owner(s) Jeanette Morton
2. ON-SITE SYSTEMS SIZED FOR 3 BEDROOMS
3. TYPE OF WATER SUPPLY: X Private Well serving #
Day phone 907-301-1855
dwelling units
F1 Other Non-public well as regulated by MOA [:1 Water Storage
n Community Well or Public
4. TYPE OF WASTEWATER DISPOSAL: FE -1 Private Septic E] Private Septic serving 2 dwelling units
❑ Holding Tank El Community Septic or Public Sewer
5. SEPTIC TANK: F71 Steel nN Plastic n Concrete n Fiberglass
Age 0 - See advisory if steel or fiberglass older than 20 years
6. ABSORPTION FIELD: [:] AW`V\/TS E] Bed OR Deep Trench R Wide Trench R 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 $ CC) Waiver Fee $
Date of Payment I/ / 5-/ 214,, Date of Payment
C
COSA# OQ(' ('
Waiver #
COSA Application—Apr2025.doc
COSA Checklist_May2025.docx
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.DISPOSAL 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_May2025.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 Phone
Engineer’s Printed Name Date
ANCHORAGE WELL & PUMP SERVICE, INC.
7640 KING STREET
ANCHORAGE, AK 99518
PH. 907-243-0740
Invoice 20265663
Bill To:
Jeanette Morton
7800 Lucy St
Anchorage, AK 99502
Ship To:
Jeanette Morton
7800 Lucy St
Anchorage, AK 99502
SALESPERSON
VanWingerden, Mark
YOUR NO.
40928
SHIP VIA COL PPD SHIP DATE TERMS
Net 30
DATE
1/19/2026
PG.
1
QTY.ITEM NO.DESCRIPTION PRICE DISC %EXTENDED
PRICE TX.
We appreciate your business. Thank you!SALE AMT.
FREIGHT
SALES TAX
TOTAL AMT.
PAID TODAY
BALANCE DUE
1 Service Call CAMERA WELL FOR ALL WELL DETAIL
1 FIELD SERVICES 01/15/26 - Remove well seal and camera
well. Replace well seal.
$387.00 $387.00
1 ST2-Mark Service Tech
1 ST23-Fereti Service Tech Helper
1 CAMERA WELL CAMERA $400.00 $400.00
WELL CAMERA RESULTS:
PITLESS ADAPTER - 15'
STATIC WATER LEVEL - 123'
PUMP SET - 137'
WELL DEPTH - 143'
NO INTRUSIONS OR OBSTRUCTIONS
NOTED
CASED TO BOTTOM OF WELL
$787.00
$0.00
$0.00
$787.00
$0.00
$787.00
30.3'
9.1'
4.0'
9.0'
9.0'
11.0'
16.1'
33.3'
25.3'
12.0'
32.1'
11.6'
2.0'
38.8'
COVERED
PORCH
RESIDENCE
8'x10'
SHED
GAS
ELEC.
LEGEND
FOUND 5/8" REBAR, NO CAP
FENCE
APPX. EDGE OF ASPHALT
RECORD DATA PER PLAT #70-338
SEPTIC PIPE
WELL
GUY WIRE
DECK
SEPTIC TANK LID
TIMBERLINE SURVEYING AND MAPPING
17035 BARONOFF AVE
EAGLE RIVER, AK 99577
907-242-5320
ryan@timberlinealaska.com
FILE NO.: 25.259
SCALE: 1" = 20 FEET
DATE: 1/4/2026
SHEET: 1 of 1
MOA GRID: SW2222
SCALE: 1" = 20 FEET(11"x17")
20'0' 40'
AS-BUILT OF:
ADDRESS: 7800 LUCY ST, ANCHORAGE, AK
LOCATED IN: ANCHORAGE RECORDING DISTRICT
LOT 29, BLOCK 1HIDDEN HILLS SUBDIVISIONPLAT #70-338
MUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENT� 907-343-7904
On Site water and wastewater Section Fax: 343 7997
www.muni.org/onsite �
Nitrate Advisory
Certificate of On -Site Systems Approval # OSC261000
Subdivision: Hidden Hills, Block: 1, Lot: 29
A water sample revealed a nitrate concentration of 5.28 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.
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