WI0700473_Correspondence_20180911

ROY COOPER
Govontcr
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
lMtertm Director
Michael Colson and Gail Dickinson
120 Dogwood Drive
Camden, North Carolina 27921
NORTH CAROLINA
Environmental Quality
September 11, 2018
SUBJECT: Groundwater Sampling Results
UIC Permit No. WI0700473
Issued to Michael Colson and Gail Dickinson
Camden, Camden County, North Carolina
Dear Mr. Colson and Ms. Dickinson:
.ECEIVEDINCDEQID'
SEP 13 2013
Water Quality Regional
Operations Section
Staff from the Washington Regional Office of the Water Quality Regional Operations Section
collected samples of the influent (supply well) and effluent (injection well) from your geothermal heat
pump system on July 31, 2018. The samples were analyzed for metals, nutrients; anti other inorganic
constituents by the Division of Water Resources laboratory. A summary table of the analytical results, as
well as the laboratory reports, field sampling forms, and defmitions of laboratory data qualifiers are attached
to this letter. The following two constituents were detected above state groundwater standards in both
samples from your system:
Parameter
Units
NC Groundwater
Standard
Results
Total Coliform
Colony Forming Units
per 100 milliliters
(CFU/100m1)
1
6 (supply well -influent)
18 (injection welt -effluent)
pH
Standard Units (s.u.)
6.5 to 8.5
6 (supply well -influent)
6 (injection well -effluent)
These exceedances should not affect the use of the wells for your geothermal heat pump system;
however, it is recommended before using the water from these wells for personal consumption that you
consult with Albemarle Regional Health Services (local health agency).
1:1717:M
North Carolina Department of Environmental Quality (Division of Water Resources - Washington Regional Office
943 Washington Square Mall, Washington, North Carolina 27889

Michael Colson and Gail Dickinson
September 11, 2018
. Page 2 of 2
In addition, the following constituent exhibited an increase in concentration between the influent
(supply well) and effluent (injection well):
Parameter
Units
NC Groundwater
Standard
Results
Copper
ug/L
1000
19 (supply well -influent)
93 (injection well -effluent)
While these concentrations of copper are still below state groundwater standards, these results may
indicate that your geothermal heat pump system is having an effect on the groundwater flowing through the
system. This information being provided to help you operate the system in the future.
If you have any questions regarding the sampling results or your permit, please feel. free to contact
me at [phone].
Sincerely,
Dwight Randy Sipe, P.C6i., Hydrogeologist
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Attachments
cc: Shristi Shrestha — DWR Groundwater Protection Unit, Central Office
Albemarle Regional Health Services
WaRO
North Carolina Department of Environmental Quality (Division of Water Resources - Washington Regional Office
943 Washington Square Mall, Washington, North Carolina 27889
252-946-6481

NC DIVISION OF WATER RESOURCES
LABORATORY ANALYTICAL RESULTS
GEOTHERMAL HEATING/COOLING RETURN WELL
PERMIT NO.: WI0700473
PERMITTEE(S): Michael Colson & Gail Dickinson
SAMPLE COLLECTION DATE: 7/31/18
tCEIVEDINCDECJW,
SEP 1 3 2018
Water Quality Region
Operations Section
Parameter
Fecal Coliform
Total Coliform
Total Dissolved Solids
Chloride, CI
Fluoride, FL
Sulfate, SO4
units
CFU1100m1
CFU/100m1
mg/L
mg/L
mg/L
mg/L
NC GWS and/or EPA Standard
NC GWS = < 1
NC GWS = < 1
NC GWS = 500
NC GWS = 250
NC GWS = 2
NC GWS = 250
EPA SDWS = 500
EPA SDWS = 250
EPA PDWS = 4.0
EPA SDWS = 250
Influent Sample Results
<1
6
148
36
<0.4
7.4
Effluent Sample Results
<1
18
140
36
<0.4
7.6
Parameter
Nitrate + Nitrite
Nitrite
Hardness as CaCO3
(by Calculation) *
Aluminum, Al
Arsenic, As
Calcium, Ca
units
mglL as N
mg/L as N
mg!L as CaCO3
pglL
pg/L
mg/L
NC GWS and/or EPA Standard
NC GWS = 11
NC GWS = 1
NS
NS
NC GWS = 10
NS
EPA PDWS = 11
EPA PDWS = 1
EPA SDWS = 50 to 200
EPA PDWS = 10
Influent Sample Results
1.2
<0.01
54
<50
<2.0
12
Effluent Sample Results
1.2
<0.01
53
<50
<2.0
12
Parameter
Chromium, Cr
Copper, Cu
Iron, Fe
Potassium, K
Magnesium, Mg
Manganese, Mn
units
pg/L
pg1L
pg/L
mg/L
mg/L
pg/L
NC GWS and/or EPA Standard
NC GWS = 10
NC GWS = 1000
NC GWS = 300
NS
NS
NC GWS = 50
EPA PDWS = 100
EPA SDWS = 1000; PDWS = 1300
EPA SDWS = 300
EPA SOWS = 50
Influent Sample Results
<5.0
19
<50
1.8
5.8
32
Effluent Sample Results
<5.0
93
<50
1.8
5.5
31
Parameter
Sodium, Na
Nickel, Ni
Lead, Pb
Zinc, Zn
pH (field)
units
mg/L
pg/L
pg/L
pg/L
units
NC GWS and/or EPA Standard
NS
NC GWS = 100
NC GWS = 15
NC GWS = 1000
NC GWS = 6.5-8.5
EPA PDWS = 15
EPA SDWS = 5000
EPA SDWS = 6.5 to 8.5
Influent Sample Results
18
4.2
<2.0
25
6
Effluent Sample Results
19
8.4
<2.0
31
6
NC GWS = North Carolina Groundwater Standards per 15A NCAC 2L .0200
EPA PDWS = Environmental Protection Agency Primary Drinking Water Standards
EPA SDWS = Environmental Protection Agency Secondary Drinking Water Standards
NS = No Standard
' Calculation performed by WaRO

AC53590 North Carolina Division of Water Resources Water Sciences
COLSON GEOTHERMAL �'r h - tus kt-)
CAMDEN Collector. R SIPE
WARD Report To WARD
Loc. Descr.:
County:
Region:
River Basin
Emergency
COC Yes/No
Collect Date' 07/31/2018
Collect Time: 10_30
Sample Depth
VlsitlD
Location ID:
Priority
Sample Matrix:
Loc. Type:
Final Report
WARO NLC
COMPLIANCE
GROUNDWATER
.
Section Laboratory Results
Sample ID: AC53590
PO Number #
Date Received:
Tme Received:
Labworks LoginlD
Delivery Method
Final Report Date'
Report Print Dater
08/01/2018
08_15
TASCENZOI
NC Courier
8127118
08/28/2018
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result Method Analysis
Units CAS # Analvte Name PQL Qualifier Reference Date Validated by
LAB
Sample temperature at receipt by lab 2.3 °c
8/2/18
CGREEN
Coliform, MF Fecal in liquid 1
MIC
1 B2,Q1
CFUnooml
SM 9222 D-1997 8/1/18 ESTAFFORD1
Coliform, MF Total in liquid
6 Q1 CFU/10om1 SM 9222 B-1997 ' 8/1/18 ESTAFFORDI
Nitrate as N in liquid 0.02
NUT
1.2
mg/L as N
EPA353.2 REV 2 8/2/18
CGREEN
Nitrite as N in liquid 0.01
0.01 U
mg/L as N
EPA353.2 REV 2 8/1/18
CGREEN
NO2+NO3 as N in liquid 0.02
1.2
mg/L as N
EPA353.2 REV 2 8/2/18
CGREEN
Bromide 0.4
WET
0.4 U
mg/L
EPA 300.0 rev2.1 8/1/18
CGREEN
Chloride 1.0
36
mg/L •
EPA 300.0 rev2.1 8/1/1 B
CGREEN •
Fluoride 0.4
0.4 U
mg/L
EPA 300.0 rev2.1 8/1/18
CGREEN
Sulfate 2.0 1
7.4
mg/L
EPA 300.0 rev2.1 8/1/18
CGREEN
Total Dissolved Solids in liquid
148
mg/L
SM 2540 C-1997 8/3/18
CGREEN
MET
AI by ICP 50
50 U
ug/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORD1
As by ICPMS 2.0
2.0 U
ug/L
EPA 200.8 Rev5.4 8/9/18 ESTAFFORDI
Ca by ICP - 0.10
12
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORDI
Cr by ICPMS 5.0
5.0 U
ug/L
EPA200.8 Rev5.4 8/9/18 ESTAFFORDI
Cu by ICPMS 2.0
19
ug/L
EPA200.8 Rev5.4 8/9/18 ESTAFFORD1
Fe by ICP 50
50 U
ug/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORD1
K by ICP 0.10
1.8
mg/L
EPA200.7 Rev4.4 8/10/18 ESTAFFORD1
Mg by ICP 0.10
5.8
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORD1
Mn by ICP 10
.32
ug/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORDI
Na by ICP 0.10
18
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORDI
Ni by ICPMS 2.0
4.2
ug/L
EPA200.8 Rev5.4 8/9/18 ESTAFFORDI
Pb by ICPMS 2.0
2.0 U
ug/L
EPA200.8 Rev5.4 8/9/18 ESTAFFORDI
Zn by ICPMS 10
25
ug/L
EPA200.8 Rev5.4 8/9/18 ESTAFFORDI
WSS Chemistry Laboratory» 1623 Mall Service Center, Raleigh, NC 27699.1623 [phone]
"Not Detected" or "Lr does not indicate the sample is analyte free but that the analyte Is not detected at or above the POL.
Page 1 of 3

WC 'D'NWR. La6oratorySection R suits/Sampee Comments/Quarter (Definitions
Sample ID: AC53590
CAS # Analvte Name
PQL
MIC:Total Coliform-Q1-Sample exceeded holding lime prior to receipt aflab.
MIC:Fecal Coliform-B2-Counts from all filters = 0.
MIC:Fecal Coliform-0i-Sample exceeded holding time prior to receipt at lab.
Result/
Qualifier
Sample Comments
Units
Method
Reference
Analysis
Date
Validated by,
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average, where at least one result is qualified with a "U". The PQL is used for the qualified result(S) to cal(
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero. The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smalle:
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present; too numerous to count (TNTC). TNTC is generally defined as >150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" valu,
BB2 MPN-All wells or tubes gave positive reactions. Value based upon the MPN Index and reported as a greater than ">" value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg& and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity. This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD-The glucose/ glutamic acid standard exceeded the range of 198 t 30.5 mg/L.
G6 BOD-The calculated seed correction exceeded the range of 0.6 to 1.0 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions set. The reported value is an estimated greater than value and is calculated fol
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set. The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
WSS Chemistry Laboratory» 1623 Mall Service Center, Raleigh, NC 27699.1623 [phone]
"Not Detected" or"U" does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 3

NC tD'Wht, La6oratary Section Rgsufts/Sample Comments/Quatfrer'Definitions
Sample ID: AC53590
CAS # Analyte Name
PQL-
Result/
Qualifier
Units
Method
Reference
Analysis
Date
Validated by
J2 The reported value failed to meet the established quality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols (e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or >6°C) during transport or not verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperlychemically preserved sample. The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method. Th
J8 Temperature limits exceeded (samples frozen or >6°C) during storage, the data may not be accurate. '
J9 The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
M Sample and duplicate results are "out of control". The sample is non -homogenous (e.g., VOA soil). The reported value is the lower
N1 Presumptive evidence and estimated value. The component has been tentatively identified base on mass spectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met (i.e., presence of z
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
P Elevated PQL* due to matrix interference and/or sample dilution.
S Not enough sample provided to prepare and/or analyze a method -required matrix spike (MS) and/or matrix spike duplicate (MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical qualifie ten limit*. The number value repot
X1 Sample not screened for this compound. .
X2 Sampled, but analysis lost or not performed -field error.
X3 Sampled, but analysis lost or not performed-lati error.
✓ Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
Y Elevated PQL* due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one -point estimation at tl
WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699-1623 (919) 733-908
"Not Detected" or"U" does not Indicate the sample Is analyte free but that the analyte is not detected at or above the PCL.
Page 3 of 3

North Carolina Division of Water Resources
Central Laboratory (Water Sciences Section)
WaterEP 13 2O18
y Visit ID:
QOeVit
Water Sample Collection & Subm� r4aitair►I
Taglnfluen
ID'-
Location Description: W10700473 -Colson Geothermal Return Well
ri i
Location Code: Influent jy 4-- Ai ('e—
11 I1 It unlit iuuun
AC53590
Date Rec 8/1/2018 08:15
t`
-
-County: Camden
Collector, R Sipe
Priority:
❑Ambient
❑ Routine
.- ( •
Water Matrix:
❑ Surface
_ - _
. - Location Type: :
❑River/Stream ❑Lake
❑ Estuary III Canal
Stormwater
❑Monitoring Well ❑Water Supply
❑Effluent ❑Influent
❑ Field Blank
❑Trip Blank
❑ Fdter BTemperature3
DWR"Region:
= (based on county) WaRO
DWR-Office:
(or agency name) WOROS - WaRO
Time Received:
�. 1
Received By
. River Basin: - Pasquotank
Date: 7/31/2018
to owner
Delivery Method: Htnd elivery
- ❑Other
✓ Compliance
Ground
Notes.
.
Jlme: - 10 30 AM
coc
Emergency
❑QA
❑Waste
❑❑
Sompliny
,- Mo:
Grab UC:omposite
-
Temperature ('C)
Tempeon Arrival,
Chlorinated De chlorinated in Field
. Blank
ethd❑Other
❑ Solution
Dissolved analysts F11ter'OIS"
❑ Filtered in Field
in check -boxes for parambters
r
Sample Depth: NIA
-, .- .
Other Geotherm Supply Well
-Collectoi•'sComments: sample collected at spigot at well head •
Microbiology Parameters: . -
MBAS (surfactants) mg/L
-Metals Parameters: -� . -
Tin (Sn) µg/L
Acidity, as CaCO3, to pH 4 5/8 3 mg/L
Oil and Grease, HEM, Total Recoverable mg/L
X
Aluminum (Al) pg/L
Titanium (Ti) pg/L
Alkalinity, as CaCO3, to pH 4 5/8 3 mg/L
Phenols, Total Recoverable pg/L
Antimony (Sh) µg/L
Vanadium (V) pg/L
SOD Biochemical oxygen Demand, 5-day mg/L
Residue Total (Total Solids) mg/L
X
Arsenic (As) pg/L
X
Zinc (Zn) nit.
cBOD Carbonaceous BOD, 5-day mg/L
Residue Volatile/Fixed, Total mg/L
Barium (Ba) µg/L
X
Cohform Fecal MF /100m1
Residue Suspended (Suspended Sohds) mg/L
Beryllium (Be) pg/L
Boron (8), Total pg/L
X
Cohform Total MF /100m1
Residue Volatile/Fixed, Suspended mg/L
Cadmium (Cd) pg/L
Mercury 1631, low-level ng/L
Coliform Tube Fecal /100m1
X
TDS - Total Dissolved Solids mg/L
x
Calcium (Ca) mg/L
Cohform Tube Total /100m1
Silica mg/L
X
Chromium (Cr), Total pg/L
-- Organics Parameters:
Specific Conductance, at 25 °C umhos/cm
Sulfide - mg/L
Cobalt (Co) pg/L
Acid Herbicides
TOC - Total Organic Carbon mg/L
Tannin & Lignrn mg/L
X
Copper (Cu) pg/L
Organochlonne Pesticides
Turbidity NTU
X
Iron (Fe) Ng/L
Organonitrogen Pesticides
_
Other Parameters: --- -
X
Lead (Pb) pg/L.
Organophosphorus Pesticides
-, Wet Che(nistnjr Parameters: - -
pH s u
Lithium (u) µg/L
PCBs (polychlorinated biphenyls)
Bromide mg/L
Hardness, Total as CaCO3 - by titration mg/L
X
Magnesium (Mg) mg/L
X
Chloride mg/L
X
Manganese (Mn) pg/L
Semi -Volatile Organics (BNAs)
Fluoride mg/L
Mercury (Hg) pg/L
TPH Diesel Range
Sulfate mg/L
Nutrients Parameters: - 't
Molybdenum (Mo) µg/L
Chlorophyll a pg/L
Ammonia as N (NH3-N) mg/L
X
Nickel (NI) pg/L
Volatile Organics (VOA)
Color ADMI c u
X
Nitrate -Nitrite as N (NO3+NO2-N) Mg/I.
X
Potassium (K) mg/L
Color Platinum Cobalt c u
Total Kleldahl Nitrogen as N (TKN) mg/L
Selenium (Se) pg/L
TPH Gasoline Range
COD Chemical Oxygen Demand mg/L
Total Phosphorus as P (TP) mg/L
Silver (Ag) pg/L
Cyanide, Total mg/L
X
Nitrite as N (NO2-N) mg/L
X
Sodium (Na) mg/L
. Biological: - 1 _1
Formaldehyde mg/L
Nitrate as N (NO3-N calculated) mg/L
Strontium (Sr) pg/L
Phytoplankton / Algae
Hexavalent Chromium (Cr6+) mg/L
Orthophosphate as P (PO4) mg/L
Thallium (TI) pg/L
LAB COMMENTS •
Field Paiamelers(apnonol):
Water Temp (°C).
-- pH (s u ). 6
Dissolved Oxygen (ppm)'
•Conductnrtty (µmhos/cm} Salinity (ppt)
evision 2/06/2015

AC53589
Loc. Descr.:
County:
Region:
River Basin
Emergency
COC Yes/No
North Carolina Division of Water Resou,(ces Water Sciences Section Laboratory Results
` COLSON GEOTHERMAL RETURN WELL E\ l (me iff
CAMDEN Collector R SIPE Vis81D
WARO
PAS
Report To
Collect Date
Collect Time:
Sample Depth
WARO
07 31 112018
10:20
Location ID:
Priority
Sample Matrix:
Loc. Type:
Final Report
WARO NLC
COMPLIANCE
GROUNDWATER
Other. Geothermal Well
Sample ID:
PO Number #
Date Received:
Time Received:
Labwarks LogintD
Delivery Method
Final Report Date
Report Print Date
AC53589
08101/2018
08_15
TASCENZOI
NC Courier
8127/18
08/26/2018
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/
CAS # Analvte Name PQL Qualifier
LAB
Sample temperature at receipt by lab 2.3
Units
•C
Method Analysis
Reference Date
8/1/18
Validated by
MSWIFT
Coliform, MF Fecal in liquid
MIC
1 Q1
CFU/100m1 SM 9222 D-1997 8/1/18 ESTAFFORD1
Coliform, MF Total in liquid
18 Q1 CFU/100m1 SM 9222 B-1997 8/1/18 ESTAFFORDI
NUT
Nitrate as N in liquid 0.02 1.2
mg/L as N
EPA 353.2 REV 2
8/2/18
CGREEN
Nitrite as N in liquid
0.01 0.01 U
mg/L as N
EPA 353.2 REV 2
8/1/18
CGREEN
NO2+NO3 as N in liquid
0.02 1.2
mg/L as N
EPA 353.2 REV 2
8/2/18
CGREEN
Bromide
WET
0.4 0.4 U
mg/L
EPA 300.0 rev2.1
8/1/18
CGREEN
Chloride
1.0 36
mg/L
EPA 300.0 rev2.1 8/1/18
CGREEN
Fluoride
0.4 0.4 U
mg/L
EPA 300.0 rev2.1 8/1/18
CGREEN
Sulfate
2.0 7.6
mg/L
EPA 300.0 rev2.1 8/1/18
CGREEN
Total Dissolved Solids in liquid
12 140
mg/L
SM 2540 C-1997 8/3/18
CGREEN
MET
Al by 1CF'
50 50 U
ug/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORDI
As by ICPMS
2.0 2.0 U
ug/L.
EPA 200.8 Rev5.4 8/9/18 ESTAFFORDI
Ca by ICP
0.10 12
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORDI
Cr by ICPMS
5.0 5.0 U
ug/L
EPA 200.8 Rev5.4 8/21/18 ESTAFFOR01
Cu by ICPMS
2.0 93
ug/L
EPA 200.8 Rev5.4 8/21/18 ESTAFFORD1
Fe by ICP
50 • .50 U
ug/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORDI
K by ICP
0.10 1.8
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORD1
Mg by ICP
0.10 5.6
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORD1
Mn by ICP
10 31
ug/L
EPA200.7 Rev4.4 - 8/10/18 ESTAFFORD1
Na by ICP
0.10 19
mg/L
EPA 200.7 Rev4.4 8/10/18 ESTAFFORD1
Ni by ICPMS
2.0 8.4
ug/L
EPA 200.8 Rev5.4 8/21/18 ESTAFFORDI
Pb by ICPMS
2.0 2.0 U
ug/L
EPA 200.8 Rev5.4 8/9/18 ESTAFFORD1
Zn by ICPMS
10 31
ug/L
EPA200.8 Rev5.4 8/9/18 ESTAFFORD1
WSS Chemistry Laboratory» 1623 Mall Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or "U" does not Indicate the sample is analyte free but that the analyte is not detected at or above the POL.
Page 1 of 3

TIC (MAX Laboratory Section 7fysufts/Sample Comments/Quafficr'Defmitions
Sample ID: AC53589
CAS # Analvte Name
PQL
Result/
Qualifier
Units
Method
Reference
Analysis
Date
Validated by
Sample Comments
MIC:Total Coliform-Q1Sample exceeded holding time prior to receipt at lab.
MIC:Fecal Coliform-Q1-Sample exceeded holding time prior to receiptet lab.
NCDEQ-WSS-Chemistry Lab Data Qualifiers
Al The reported value is an average, where at least one result is qualified with a "U". The PQL is used for the qualified result(S) to call
B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
B2 Coliform-Counts from all filters were zero. The value reported is based on the number of colonies per 100 ml that would have been
B3 Coliform-Countable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smaller
B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported
B5 Coliform-Too many colonies were present; too numerous to count (TNTC). TNTC is generally defined as >150 colonies.
B6 Coliform-Estimated Value. Blank contamination evident.
B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non -conform or non-enterococcus growth present. In this cc
BB1 MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" vale
BB2 MPN-All wells or tubes gave positive reactions. Value based upon the MPN Index and reported as a greater than ">" value.
C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
G1 BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L.
G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea:
G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 mg/L.
G4 BOD-Evidence of toxicity. This is generally characterized by a significant increase in the BOD value as the sample concentration de
G5 BOD.-The glucose/ glutamic acid standard exceeded the range of 198 ± 30.5 mg/L.
G6 BOD-The calculated seed correction exceeded the range of 9.6 to 1.0 mg/L.
G7 BOD-Less than 1 mg/L DO remained for all dilutions St. The reported value is an estimated greater than value and is calculated foi
G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set. The reported value is an estimated less than value and is calculated for
G9 BOD-The DO depletion of the dilution water blank produced a negative value.
J1 Surrogate recovery limits have been exceeded.
WSS Chemistry Laboratory» 1623 Mall Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or"U" does not Indicate the sample is analyte free but that the analyte is not detected at or above the POL.
Page 2 of 3

9%/Ca»t4 Ga6oratorySection 4su(ts/Sample Comments/Quafrfsr'Definitionr
Sample ID: AC53589
CAS #
Analvte Name
PQL
Result/
Qualifier
Units
Method
Reference
Analysis
Date Validated by
J2 The reported value failed to meet the establiatiedguality control criteria for either precision or accuracy.
J3 The sample matrix interfered with the ability to make any accurate determination.
J4 The data is questionable because of improper laboratory or field protocols (e.g., composite sample was collected instead of grab, p
J5 Temperature limits exceeded (samples frozen or >6°C) during transport ornot verifiable (e.g., no temperature blank provided): non-
J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method. Th
J8 Temperature limits exceeded (samples frozen or >6°C) during storage, the data may not be accurate. -
J9 The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
J10 Unidentified peak; estimated value.
J11 The reported value is determined by a one -point estimation -rather than against a regression equation. The estimated concentration
J12 The calibration verification did not meet the calibration acceptance criterion for field parameters.
M Sample and duplicate results are "out of control". The sample is non -homogenous (e.g., VOA soil). The reported value is the lower '
N1 Presumptive evidence and estimated value. The component has been tentatively identified base on massspectral library.
N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met (i.e., presence of z
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N4 - This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo
N5 The component has been tentatively identified based on a retention time standard.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
P Elevated PQL* due to matrix interference and/or sample dilution.
S Not enough sample provided to prepare and/or analyze a method -required matrix spike (MS) and/or matrix spike duplicate (MSD).
U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit. The number value repot
X1 Sample not screened for this compound.
X2 Sampled, but analysis lost or not performed -field error.
X3 Sampled, but analysis lost or not performed -lab -.error.
✓ Indicates the analyte was detected in both the-'sartiple and the associated method blank. Note: The value in the blank shall not be s
Y Elevated PQL* due to insufficient sample site: .-:'
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability. "
U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate.
UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one -point estimation at tl
•
WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699.1823 [phone]
"Not Detected" or "U" does not indicate the sample is analyte free but that the analyte is not detected at or above the PDL.
Page 3 of 3

North Carolina Division af Water Resources
Central Laboratory (Water Sciences Section)
Water Sample Collection
Submittal Form I visut:
(ophono0
IL EfFluen �
'
LAB COMMENTS :
Field Parametets(opdano6:
Water Temp (°C)•
-ri p1T(s.u) 6
Dissolved
Oxygen (ppm),
_ Conductivity (pmhos/cm). -
- • Salinity (opt).
Revision 2/06/2015