HomeMy WebLinkAboutFIRE LAKE LT 3 LT K3Onsite File
#051-333-41
Municipality of Anchorage
On-Site Water and Wastewater Section - (907) 343-7904 Page of
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: .OSP 191496 PID Number: 051-333-41
Dwelling: ❑ Single Family (SF) M with ADU Z Duplex (D) El Two Single Family Project: Fl New Upgrade
Name
DAVID WILSON
ABSORPTION FIELD - EXISTING
El Deep Trench F-1 Wide Trench El Bed El Mound
Site Address
14011 KNOB HILL DRIVE, EAGLE RIVER
El Other
Phone7
f Bedrooms
Soil Rating
depth from original grade
77�
6
GPD/SF
JTotal
Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
Ft.
Gravel depth beneath pipe
Ft.
Subdivision Block Lot
FIRE LAKE LOT 3 K3
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
Septic
Absorption
Lift Station
Holding
Sewer
Total absorption area
Number of trenches
Dist. between trenches
From
Tank
Field
Tank
Line
Ft'
I
I Ft.
Well
100'+
25'+
TANK 0 Septic F-1 S.T.E.P. ❑ Holding E] Other
Manufacturer
GREER
Capacity
1500 & 1000 Gal.
Surface Water
100'+
Material
HDPE
Number of compartments
1 & 2
Lot Line
101+
NA
Foundation
10'+
LIFT STATION
IManufacturer
Capacity
Gal.
Remarks Existing septic tanks decommissioned per code.
Alarm location
Electrical installed by
Installer NORTHERN EXCAVATION
PIPE MATERIAL House to tank 3034 Tank to
drainfield 3034
Drainfield CO/MT 3034
Inspector FWCS/ MNA
BENCH MARK (Assumed elevation) 100 ft
Inspdates: ection i'l 11/26/19 Zed 11/27/19
Location and description
3`d4",
BOTTOM OF TRIM
ON-SITE WATER AND WASTEWATER SECTION APPROVAL
Conditional Approval: Date
7',OF 1�
ALS
491H*
Septic System
0 /�--
)
Approved - lql
Ak �A .MIC MICHAEL N. ANDERSON.-
S No. CE 9469 .. -' .
Date
1/8/20.20.. -
Pftprssloo'
Note: this approval does not include well permit requirements.
-AV
k Gv 0:)/041 1 0)
11/4/19
MUNICIPALITY OF ANCHORAGE
Development Services Department r Phone: 907-343-7904
On -Site Water & Wastewater Section Fax: 907-343-7997
ON-SITE SEPTICIWELL PERMIT APPLICATION
Parcel I.D. 051-333-41
Property owner(s) DAVID WILSON & MARGARET BAKER Day phone
Mailing address 14011 KNOB HILL, EAGLE RIVER, AK 99577
Site address 14011 KNOB HILL, EAGLE RIVER, AK 99577
Legal description (Sub'd., Block & Lot) FIRE LAKE LOT 3, LOT K3
Legal description (Township, Range & Section)
Lot Size 56,166 Sq. Ft. Number of Bedrooms 6
APPLICATION IS FOR:
APPLICATION IS AN:
TYPE OF DWELLING:
(M all that apply)
Absorption Field
❑
Initial ❑
Single Family (SF)
❑
(w/wo AD U)
Septic Tank
®
Upgrade ®
Duplex (D)
Holding Tank
❑
Renewal ❑
Multiple Dwellings
❑
Privy
❑
(SF and/or D)
Private Well
❑
Water Storage
❑
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Distance:
I certify that the above information is correct. I further certify that this is in accordance with
applicable Municipal Codes.
(Signature of property owner or authorized agent)
Permit/Rush Fees:
Date of Payment:
Receipt Number:
Permit No. QJ%piRitlq&
Waiver Fees:
Date of Payment:
Receipt Number:
Waiver No.
GADevelopment Services\Building Safety\On Site Water and Wastewater\FormsUient FormsTermit Application.doc
Michael N. Anderson, P.E.
Civil/Structural Engineering and Construction
4661 Natrona Ave. Anchorage, Alaska 99516
Phone 345 -3377 / Fax 345 -1391
Support Services
Brent M. Western
907-440-4601
October 28, 2019
On-Site Water & Wastewater Program
4700 Elmore Road
Anchorage, AK 99507
RE: SEPTIC TANKS - UPGRADE PERMIT
LEGAL: FIRE LAKE LOT 3, LOT K3 14011 KNOB HILL DRIVE
To whom it may concern:
The owner has requested we proceed forward to obtain a septic permit to upgrade the
aged septic tanks on the subject lot. The proposed upgrade will serve the existing 6-
bedroom house.
The lot and area are served by private wells. The proposed design will not impact any of
the neighboring properties due to the lot layout. Please contact Brent M. Western or me if
you have any questions.
Sincerely,
Michael N. Anderson, P.E.
Attachments: ADEC Record Docs
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191496, Rebecca Carroll, 11/04/19
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191496, Rebecca Carroll, 11/04/19
/ I/ STATE OF ALASKA
\
// ➢ EPFRTMENT OF ENVIRONMENTAL CONSERVATION
APPROVAL OF ON RES]DENIFAL WATER AND SEWER SYSTEMS
PROPERTY DESCRIPTION
mrL A a;!- df /5 - — --
,Y91_f F—A--�-: __ --__ _ -I all -_
This approval does not constitute a guarantee of any kind, explicit or implied, as to the performance
Of the water supply and wastewater disposal systems.
A recent watersar le was tested and found 10 meet department orEnvironmentalConservationdrink
-
Ing water standards for total coliform bacteria
.WASTEWATER DISPOSAL
The domestic wastewater system was: —
❑ Inspected by the Department of Environmental Conservation and found to be In compliance with
applicable requirements of 16 AAC 72;
Inaspeofed I Professional Ergmearwhohnettlikes mM the system kessam er With applicable to
qufmanints of 18 AAC 72;
LJ Installed by a Certified Installer who cedifles that the system complies with applicable requirements
of 18 AAC 72' or
L testi adirmalsouldricam Falgrne _ 1R4IhD R n gyp--. ..
and that the student complies w Ih Yfid dI'ntr i frhsep od�]Sia"3ilas"'$e6 d fn i! -
This approval isvald for aL single tamp@ m INT rally unit_ with a total of bedrooms._ -
..use
grr_G C.
na¢+ine 1115 pormsorlON'. weMr—aPnsina IXp rJohnn il; CANARIMPPOGMi FNMDM FNT
EAGLE RI��((.� Jan �•f3!F—PJa
ENGINEERING 5773 94 - CPBan
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EAGLE RIVER. ALASAA 99577 uuwun:e er -2— 'd <TM m , 6/9f/ n
Panne 6945195 '
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OFAGIERIVERENGINEENINGSEAVIGES O $ salts LOG
EAGLE PNEP, AN 99577
P. O. BOK P3291
6945195 D PEncourlox
TEST
SOI IS LOG—PERCOLATION TEST
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GREAI'ER ANCHORAGE AREA BORuUGH
Department of Environmental Quality
3330 C Street
Anchorage, Alaska 99503
INSPECTION REPORT ON-SITE SEWAGE DISPOSAL SYSTEM
NAME
SEPTIC TANK:
DISTANCE /
FROM WELL / ~ 7~ MANUFACTURER
INSIDE LENGTH ~ ) INSIDE WIDTH
¢~~~MATE RIAL
.LIQUID DEPTH_
NUMBER OF
COMPARTMENTS
LIQUID CAPACITY /0-~'~) GALLONS.
SEEPAGE PIT:
NUMBER OF PITS / DIAMETER OR WlDTH/~--,
/
LINING MATERIAL /~.~-~"..~/z_~ CRIB SIZE: DIAMETER
/
BUILDING FOUNDATION__ NEAREST LOT LINE.<~z~
ADDITIONAL ABSORPTION
? !
LENGTH 7 DEPTH / ~
DEPTH ~ DISTANCE FROM: WELL
TOTAL EFFECTIVE
ABSORPTION AREA (WALL AREA) 3 3~ SQ. FT.
WELL:
TYPE ~'~ ") CONSTRUCTION
BUILDING NEAREST
FOUNDATION -- LOT LINE
NEAREST
SEWER LINE
DEPTH DISTANCE FROM:
SEPTIC SEEPAGE
TANK __ SYSTEM
CESSPOOL
APPROVED
DISTANCES:
OTHER SOURCES
DISAPPROVED
__ :~/'/~/-~DIAGRAM OF SYSTEM
INSTALLED BY:
PIPE MATERIAL:
LOT SLOPE:
REMARKS:
Fn~m No. EQ-031
DATE
Gte:, .--r ANChorage Area bo~ Ugh
PERMit NO.
DEPARTMENT OF ENVIRONMENTAL QUALITY ~/~ ~//~___.~
$330 "C" STREET ANCHORAGE, ALASKA 99503
SEWAGE DISPOSAL SYSTEM ~--APPLICATION AND PERMIT
INSTALLATION OF: SEPTIC TANK
TYPE AND SIZE OF FACILITY TO BE SERVED
FINANCED THROUGH
SEEPAGE Pit .. DRAIN FIELD . OTHER
SOIL TEST RESULTS ~_~d_ ' ~'~"~..~'~d~'~)d~'~'~'~'~'~'~'~'~ ~--~'~"OTE, THIS PERMIT IS NOT VALID WITHOUT SOIL Tl='ST
COM,LETION OATe ANT,D,R^TeD /",~?~"~ /~, -/~e
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.
SEEPAGE AREA s,~e/e~ ~/y'Y~ ' Tv~E .~/-/"-'
MINIMUM DISTANCES, REQUIREMENTS
FOUNDATION TO SEPTIC TANK --
FOUNDATION TO SEEPAGE PIT ~':~'~ DRAIN FIELD
SEPTIC TANK TO SEEPAGE PIT WALL
SEPTIC TANK ~ SEEPAGE PIT ~
TO NEAREST LOT LINE.
/
DRAIN FIELD I
DRAIN FIELD
SEPT,C TANK, /D~ , SEE~AG~ PIT
SEEPAGE Pit
ALSO CONSIDER AREA WELLS.
SEEPAGE P'T
DRAIN FIELD
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
F~TTED WITH AIRTIGHT REMOVABLE CAPS.
GRAVEL BACKFILL
CONFORM TO BOROUGH REGULATIONS REGARDING INSTALLATION,
DIAGRAM OF SYSTEM
Jim Arnold ~ .,: 18 Sept ?5
top-
soill
2
Gw
content.
The sediments were fairly
loose with a low water
DATE RECEIVED
INSPECTION APPOINTMENTS
TIME , TIME
DATE '~ ~ ~ ~ I DATE
I I NSP ECT[O~R INSPECTOR
,MIJNICIPALITY Of ANCHORAGE
MUNICIPALITY OF ANCHORAGE DEPT. OF HEALTH &
DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTF~TvI~NMENTAL PROTECTION
825 L Street - Anchorage, Alaska 99501
ENVIRONMENTALSAN TAT ON D V SION SEP 1. ? 1980
Telephone 264-4720
DE r' E/~/E I'~
REQUEST FOR APPROVAL OF INDIVIDUAL WATER AND SL~/~FIA~I~.Iii'I~/S
DATE
INSPECTOR
DIRECTIONS: Complete all parts on page 1, Incomplete requests will not be processad. Please allow ten {10) days for processing.
· ......Z RTYOWNER I 5HONE
MAI~L~'N G ADDRESS
PROPERTY R~SIDENT~I/f dif{~rent from abo~E) ' - -
2,' BUYER ' ' / -
~AILING ADDRESS
3. LENDING INSTITUTION
MAILING ADDRESS
4. REA..LTOR/AGENT
MAILING ADDRESS
r~ i, LEGAL DESCRIPTION
JPHONE
PHONE
JPHONE
JPHONE
6. TYPE OF R~SJD~CE
~ SINGLE FAMILY
[] MULTIPLE FAM;LY
NUMBER OF~BEDROOMS
[] One _[~ Four
[] Two [] Five
[] Three ~' Six
[] Other
7, WATER SUPPLY
'~ INDIVIDUAL*
[] COMMUNITY
[] PUBLIC UTILITY
* 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.)
8. SEWAGE DISPOSAL SYSTEM
I
NDIVIDUAL/ON-SITE**
[] PUBLIC UTILITY
YEAR ON-SITE SYSTEM WAS INSTALLED.
NOTE: THE INSPECTION FEE MUST ACCOMPANY EACH REQUEST BEFORE PROCESSING CAN BE INITIATED.
THIS SIDE FOR OFFICIAL USE ONLY
1. TYPE OF RESIDENCE
[] SINGLE FAMILY
[] MULTIPLE FAMILY
NUMBER OF BEDROOMS
[] ONE [] THREE [] FIVE
[] TWO [] FOUR [] SlX
[] OTHER
2. WATER SUPPLY
[] INDIVIDUAL
[] COMMUNITY
[] PUBLIC UTILITY
Connection Verified
3. SEWAGE DISPOSAL SYSTEM
[] INDIVIDUAL/ON -SITE
[]PUBLIC UTILITY
Connection Verified
[]Septic Tank or []Holding Tank
Size: ~ ~ If Tank is homemade
give dimensions:
TYPE OF TANK
TOTAL ABSORPTION AREA
4. DISTANCES
WELL TO:
PERMIT NUMBER
DEPTH OF WELL
DATE DRILLED
LOG RECEIVED
PERMIT NUMBER
DATEINSTALLED
INSTALLER
SOl LS RATING
MANUFACTURER
MATERIAL
Septic/Holding Tank
IAbsorption Area lSewer Line
INearest Lot Line
Absorption Area to nearest Lot Line
5. COMMENTS
DATE
[]
[]
[~"~DISAPPROV ED
APPROVED FOR BEDROOMS
CONDITIONAL APPROVAL (letter must accompany certificate)
72-010 (Rev, 6/79)
MUNICIPALITY OF ANCHORAGE
Development Services Department ry- Phone: 907-343-7904
On -Site Water & Wastewater Section Fax: 907-343-7997
Certificate of On -Site Systems Approval
Parcel I.D. 051-333-41
1. GENERAL INFORMATION
Complete legal description FIRE LAKE LOT 3, LOT K3
Expiration Date: 'T —30 `-2D40
Location (site address) 14011 KNOB HILL DRIVE, EAGLE RIVER, AK 99577
Current property owner(s) DAVID WILSON & MARGARET BAKER Day phone
Mailing address 14011 KNOB HILL DRIVE, EAGLE RIVER, AK 99577
Real estate agent Day phone
2. TYPE OF DWELLING:
❑ Single Family (w/wo ADU)
® Duplex
❑ Multiple Dwellings (Single Family and/or Duplex)
3. NUMBER OF BEDROOMS:
6
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:
Received by:
COSA to be released to the engineer, unless otherwise requested by the engineer.
Date:
COSA Fee $ Lr 12. Waiver Fee $
Date of Payment �2 - "1 '? oZd
Receipt Number
COSA # C9 C ->C, a.61 2 -go
Date of Payment
Receipt Number
Waiver #
Distance:
5. STATEMENT OF INSPECTION BY ENGINEER
As certified by my seal affixed hereto and as of the validation date shown below, l 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 6/8/2020
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 _4+
construction (workmanship & materials), the water usage of the family being served by thert�ll+
system and maintenance. The operational life of all well and septic systems are subject to ��P",�! ' • • , {Q�l
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 , TH ••* ��
for current or future occupants or guarantee that no unseen encroachments, deficiencies or `
discrepancies exist can be given by First Water Consulting & Fwrls • • • • • • • • • • . �-
6. DSD SIGNATURE • Curtis Huffman......
uffman• • .:
, CE 128991 •,•//�
System #1 Approved for 1�/ bedrooms �� �rF ' --.o2o ,.����
It �FVpROFESSt�NP
System #2 Approved for bedrooms 1l\ROFESS
Disapproved lllllttt(ttt
Conditional approval for bedrooms, with the following stip`*Q4
C O _
ATER A� z
o
R
WA
PRO Ojs
By: Original Certificate ,Date:
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 Nitrate Advisory
Septic System Advisory Arsenic Advisory
Well Flow Advisory Other
COSA Checklist
Legal Description: FIRE LAKE LOT 3 LOT K3 Parcel ID: 051-333-41
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 Unknown
Total depth *307 ft
Cased to Unknown ft
® Sanitary seal is functioning correctly
® Wires are properly protected
Casing height (above ground) **18+ in.
Date of flow test for COSA 5/7/2020
Static water level at beginning of test 82 ft.
Water storage tank volume 500 gallons
Well disinfected for coliform test? ❑ Yes ® No
® Coliform bacteria is Negative
Nitrate 9.11 mg/L ❑ Nitrate less than MRL (ND)
Arsenic ug/L ® Arsenic less than MRL (ND)
WE
Collected by
Date of Sample 6/9/2020
Well production at time of test 3 gpm
Comments *Per owner / AWPS — well was deepened to 307' and hydrofracked prior to purchase w/ pump at 267'.
**18"+ above bottom of pit (well below grade) — See attached AWPS inspections. Storage tank bypassed for test
B. TANK DATA
Age of tank(s) 0.5 years
Tank type/material SEPTIC / HDPE
Measured operating fluid level in septic tank NEW
® Standpipes/foundation cleanout per record drawing
Date of pumping NEW - 2 TANKS
D. ABSORPTION FIELD DATA
Which system tested (date installed) 6/12/1987
® ALL standpipes present per record drawing
Total measured depth from grade 9.9 ft (max)
Measured depth to pipe invert from grade 3.9 ft (min)
❑ N/A — pressurized field
® Monitor tubes go to bottom of effective. If not, state
depth into effective
® Code -required soil cover over field
❑ System presoaked
(Required if vacant for greater than 30 days prior to
date of test)
Gallons introduced gallons
Comments/Deficiencies:
C. LIFT STATION
❑ Required maintenance completed
Age of lift station _ years
Lift station material
Comments:
Adequacy test date 10/2/2019
Results 2 Pass For 6 bedrooms
Fluid depth prior to test 45 in
Water added 1200 gal
New depth 65 in
Elapsed time 1080 min
Final fluid depth 42 in
Absorption rate 900+ gpd
Any rejuvenation treatment (past 12 months) N
If yes, enter date
FW'CS
E. SEPARATION DISTANCES
From Private Well on Lot to: (Please enter distances if less than required or if community well)
® Yes
if No
Septic Tank/Lift Station on Lot > 100'
Surface Water > 100' ® Yes if No ft
Property Line > 5'
Community Sewer Manhole/Cleanout > 100'
if No
® Yes
if No
ft
® Yes
if No
ft
Neighboring Tank > 100' ® Yes
if No
ft
Private Sewer/Septic Line > 25' ® Yes
if No
ft
Absorption Field on Lot > 100' ® Yes
if No
ft
Holding Tank > 100' ® Yes
if No
ft
Neighboring Absorption Fields > 100'
Animal Containment > 50' ® Yes
if No
ft
® Yes
if No
ft
Manure/Animal Excreta Storage > 100'
Community Sewer Main > 75' ®Yes
if No
ft
® Yes
if No
ft
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 ft
Property Line > 5'
® Yes
if No
ft
Wells on Adjacent Lots:
Absorption Field > 5'
® Yes
if No
ft
Private Wells > 100' ® Yes if No ft
Water Main > 10'
® Yes
if No
ft
Community Wells > 200' ® Yes if No ft
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
l certify that 1 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.
14b, OF Al
ASW
law,
TH
... . ......
• Curtis Huffman
CE 128991 .•�``�
`c * /18/202Q .Aw
��� PROFESSIONP
MUNICIPALITY OF ANCHORAGE
DEVELOPMENT SERVICES DEPARTMENTP9 907-343-7904
On -Site water and Wastewater Section % Fax: 343-7997
www.muni.org/onsite
Nitrate Advisory
Certificate of On -Site Systems Approval # OSC 201240
Subdivision: Fire Lake, Lot: 3 Lot K3
A water sample revealed a nitrate concentration of 9.11 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.
Ma�lmg%�dest -UNAl�as a 9 196Sawtnrmun�org���
a t.
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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SGS Ref.#
1210517001
Client Name
MOA Development Services Department, O
Project Name/#
14011 Knob Hill Dr
Client Sample Ill
14011 Knob Hill Dr
Matrix
Drinking Water
Printed Date/Time
Collected Date/Time
Received Date/Time
Technical Director
02/15/2021 8:37
02/02/2021 15:15
02/02/2021 16:00
Stephen C. Ede
Sample Remarks:
Allowable Prep Analysis
Parameter ReSUItS LOQ Units Method Container ID Limits Date Date Init
Waters Department
Total Nitrate/Nitrite-N 5.86 0.200 mg/L SM21 4500NO3-P B (<10) 02/03/21 EWW
Microbiology Laboratory
E. Coli Negative 1 100mL SM21 9223B A 02/03/21 A.L
Total Coliform Negative 1 100mL SM21 9223B A 02/03/21 A.L
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