WI0500042_Staff Report_20240214

DocuSign Envelope ID: D704DOCE-350E-4D09-A63E-3F459520DF16
Permit No. WI0500042
Date: February 14, 2024
To: Blake Butcher
Permittee/Applicant: Ben Adler and Charlotte Davenport
Facility Name: 1230 Mordecai Drive
County: Wake
L GENERAL INFORMATION
1. This application is (check an that apply): ❑ New ® Renewal
❑ Minor Modification ❑ Major Modification
a. Date of Inspection: January3. 2024
b. Person contacted and contact information: Ben Adler
c. Site visit conducted by: Michael Hall
d. Inspection Report Printed from BIMS attached: ❑ Yes ® No.
e. Physical Address of Site including zip code: 1230 Mordecai Drive, Raleigh, NC 27604
f. Driving Directions if rural site and/or no physical address:
g. Latitude: Longitude:
Source of Lat/Long & Accuracy (i.e., Google Earth, GPS, etc.): Click or tap here to enter text.
II. DESCRIPTION OF INJECTION WELL AND FACILITY
1. Type of injection system:
® Geothermal Heating/Cooling Water Return
❑ In situ Groundwater Remediation
❑ Non -Discharge Groundwater Remediation
❑ Other (Specify:
2. For Geothermal Water Return Well(s) only
a. For existing geothermal system only:
Were samples collected from Influent/Effluent sampling ports? ® Yes ❑ No.
Provide well construction information from well tag: Not available
b. Does existing or proposed system use same well for water source and injection? ® Yes ❑ No
If No, please provide source/supply well construction info (i.e., depth, date drilled, well contractor,
etc.) and attached map and sketch location of supply well in relation to injection well and any other
features in Section IV of this Staff Report.
3. Are there any potential pollution sources that may affect injection? ❑ Yes ® No
What is/are the pollution source(s)? Click or tap here to enter text.
What is the distance of the injection well(s) from the pollution source(s)? Click or tap here to enter text.
4. What is the minimum distance of proposed injection wells from the property boundary? Click or tap here to enter
text.
5. Quality of drainage at site: ❑ Good ❑ Adequate ❑ Poor
6. Flooding potential of site: ❑ Low ❑ Moderate ❑ High

DocuSign Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
7. For Groundwater Remediation Injection Systems only, is the proposed and/or existing groundwater monitoring
program (number of wells, frequency of monitoring, monitoring parameters, etc.) adequate? ❑ Yes ❑ No.
If No, attach map of existing monitoring well network if applicable and recommend any changes to the
groundwater -monitoring program.
8. Does the map included in the Application reasonably represent the actual site (property lines, wells, surface
drainage)? ❑ Yes ❑ No. If No, or no map, please attach a sketch of the site. Show property boundaries,
buildings, wells, potential pollution sources, roads, approximate scale, and north arrow.
9. For Non -Discharge Groundwater Remediation systems only (i.e., permits with WQChck or tap hereto enter
text._prefix):
a. Are the treatment facilities adequate for the type of waste and disposal system? ❑ Yes ❑ No ❑ N/A.
If No, please explain:
b. Are the site conditions (soils, topography, depth to water table, etc.) consistent with what was reported by
the soil scientist and/or Professional Engineer? ❑ Yes ❑ No ❑ N/A. If no, please explain:
III. EVAL UA TION AND RECOMMENDATIONS
1. Do you foresee any problems with issuance/renewal of this permit? ❑ Yes ❑ No. If Yes, explain.
2. List any items that you would like WQROS Central Office to obtain through an additional information request.
Make sure that you provide a reason for each item:
Item Reason
3. List specific special conditions or compliance schedules that you recommend to be included in the permit when
issued. Make sure that you provide a reason for each special condition:
Condition Reason
4. Recommendation
❑ Deny. If Deny, please state reasons:
❑ Hold pending receipt and review of additional information by Regional Office
❑ Issue upon receipt of needed additional information
DocuSigned by:
® Issue kt6d fka
5. Signature of Report Preparer(s): 372DCBCB61.E'�$uS,Feaa
Signature of WQROS Regional Supervisor: I Aitt Ad w
Date: 2/14/2024

DocuSign Envelope ID: D704DOCE-350E-4D09-A63E-3F459520DF16
IV. ADDITIONAL REGIONAL STAFF REVIEW COMMENTS/ATTACHMENTS (Optional / If Needed)
Groundwater samples were collected and analyzedy the Division of Water Resources Analytical Laboratory.
Sampling log forms and laboratory results are attached. No constituents were found at concentrations above
the available soundwater standard (I5A NCAC .02L) or interim maximum allowable concentration.
Constituent concentrations in influent and effluent samples were essentially the same, with the exception of
iron, which was not detected in the influent, and was detected at 100 ug/1 in the effluent sample. A detailed
inspection and sampling letter will be prepared for the permittee. Well was covered by a fiberglass "rock".
Influent and Effluent pipes were labeled in the field based on pictures from previous inspection and observation
of their operation.

DocuSign Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
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DocuSign Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
AD16428 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc. Descr.:
1230 MORDICAI
County:
Wake
Collector:
M HALL
VisitlD
Region:
Raleigh
Report To
RRO
Location ID:
W1 I
River Basin
NEU
Collect Date:
01/03/2024
Priority
ROUTINE
Emergency
Collect Time:
09_50
Sample Matrix:
GROUNDWATER
COC Yes/No
Sample Depth
Loc. Type:
Influent
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS # Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.6 °C 1/3/24 MSWIFT
MIC
Collform, MF Fecal in liquid 1 1 B2 CFU/100ml SM 9222 D-1997 1/3/24 JJURGEVICH
Collform, MF Total in liquid
1
1 B2
CFU/100ml
SM 9222 B-1997
1/3/24
JJURGEVICH
E701177
NO2+NO3 as N in liquid
0.15
NUT
2.4 J8,P
mg/Las N
EPA353.2 REV 2
1/17/24
ALWILLIAMS
24959-67-9
Bromide
0.4
WET
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16887-00-6
Chloride
1
29 J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16984-48-8
Fluoride
0.4
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
14808-79-8
Sulfate
2
24 J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
Total Dissolved Solids in liquid
12.5
207 J8
mg/L
SM 2540 C-1997
1/9/24
ALWILLIAMS
7429-90-5
Al by ICP
50
MET
51
ug/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-70-2
Ca by ICP
0.10
32
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-43-9
Cd by ICPMS
0.50
0.50 U
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7440-47-3
Cr by ICPMS
5.0
5.0 U
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7440-50-8
Cu by ICPMS
20
420 P
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7439-89-6
Fe by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-09-7
K by ICP
0.10
3.6
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7439-95-4
Mg by ICP
0.10
9.9
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7439-96-5
Mn by ICP
10
10 U
ug/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-23-5
Na by ICP
0.10
15
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-02-0
Ni by ICPMS
2.0
42
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7440-66-6
Zn by ICPMS
10
74
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
WSS Chemistry Laboratory>> 1623 Mail 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 1 of 3

DocuSion Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
111_%Q tf MIICIIYLC 04011 It::
NC IO WX Ga6oratory Section XesuftslSampfe Comm entslQuaCier Inefi�nitions
Sample ID: AD16428
Result/ Method Analysis
r`�` Qualifier Units Reference Date Validated by
Sample Comments
IC:Fecal Coliform-B2-Counts from all filters = 0.
IC:Total Coliform-B2-Counts from all filters = 0.
IET:TDS-J8-Estimated-Sample temperature exceeded criteria during
orage due to building power shut down.
IET:IC-J8-Estimated-Sample temperature exceeded criteria during storage
ae to building power shut down.
UT:NO3NO2-J8-Estimated-sample temperature exceeded criteria during
orage due to a planned power outage.
NCDEQMSS-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.
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-Esti mated 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/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.
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 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.
J10 Unidentified peak; estimated value.
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or " T does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 3

DocuSion Envelope ID: D704DOCE-350E-4D09-A63E-3F459520DF16
1.,F1J tf MIICIIYLC 04011 It:
NC IO WX Ga6oratory Section XesultslSampfe Comm entslQuaCfier Inefi�nitions
Sample ID: AD16428
Result/ Method Analysis
r`�` Qualifier Units Reference Date Validated by
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.
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, pl
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 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
A Temperature limits exceeded (samples frozen or >6°C) during storage, the data may not be accurate.
A The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
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 e
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.
P Elevated PQL" due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
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
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 tr
V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
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.
Y Elevated PQL" due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
J13 Standards used for this analyte are from an uncertified source. These are the only standards currently available for the analyte.
WSS Chemistry Laboratory>> 1623 Mail 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 3 of 3

DocuSign Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
AD16429 North Carolina Division of Water Resources Water Sciences Section Laborato y Results
Loc. Descr.:
1230 MORDECAI
County:
Wake
Collector:
M HALL
VisitlD
Region:
Raleigh
Report To
RRO
Location ID:
W1 E
River Basin
NEU
Collect Date:
01/03/2024
Priority
ROUTINE
Emergency
Collect Time:
10_20
Sample Matrix:
GROUNDWATER
COC Yes/No
Sample Depth
Loc. Type:
Effluent
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS # Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 1.6 °C 1/3/24 MSWIFT
MIC
Collform, MF Fecal in liquid 1 1 B2 CFU/100ml SM 9222 D-1997 1/3/24 JJURGEVICH
Collform, MF Total in liquid
1
1 B2
CFU/100ml
SM 9222 B-1997
1/3/24
JJURGEVICH
E701177
NO2+NO3 as N in liquid
0.15
NUT
2.4 J8,P
mg/Las N
EPA353.2 REV 2
1/17/24
ALWILLIAMS
24959-67-9
Bromide
0.4
WET
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16887-00-6
Chloride
1
29 J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16984-48-8
Fluoride
0.4
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
14808-79-8
Sulfate
2
24 J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
Total Dissolved Solids in liquid
12.5
204 J8
mg/L
SM 2540 C-1997
1/9/24
ALWILLIAMS
7429-90-5
Al by ICP
50
MET
82
ug/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-70-2
Ca by ICP
0.10
31
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-43-9
Cd by ICPMS
0.50
0.50 U
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7440-47-3
Cr by ICPMS
5.0
5.0 U
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7440-50-8
Cu by ICPMS
20
430 P
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7439-89-6
Fe by ICP
50
110
ug/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-09-7
K by ICP
0.10
3.6
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7439-95-4
Mg by ICP
0.10
9.8
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7439-96-5
Mn by ICP
10
10 U
ug/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-23-5
Na by ICP
0.10
15
mg/L
EPA 200.7 Rev4.4
1/25/24
JJURGEVICH
7440-02-0
Ni by ICPMS
2.0
43
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
7440-66-6
Zn by ICPMS
10
23
ug/L
EPA200.8 Rev5.4
1/26/24
JJURGEVICH
WSS Chemistry Laboratory>> 1623 Mail 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 1 of 3

DocuSion Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
111_%Q tf MIICIIYLC 04011 It::
NC IO WX Ga6oratory Section XesuftslSampfe Comm entslQuaCier Inefi�nitions
Sample ID: AD16429
Result/ Method Analysis
r`�` Qualifier Units Reference Date Validated by
Sample Comments
IC:Fecal Coliform-B2-Counts from all filters = 0.
IC:Total Coliform-B2-Counts from all filters = 0.
IET:TDS-J8-Estimated-Sample temperature exceeded criteria during
orage due to building power shut down.
IET:IC-J8-Estimated-Sample temperature exceeded criteria during storage
ae to building power shut down.
UT:NO3NO2-J8-Estimated-sample temperature exceeded criteria during
orage due to a planned power outage.
NCDEQMSS-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.
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-Esti mated 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/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.
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 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.
J10 Unidentified peak; estimated value.
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or " T does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 2 of 3

DocuSion Envelope ID: D704DOCE-350E-4D09-A63E-3F459520DF16
1.,F1J tf MIICIIYLC 04011 It:
NC IO WX Ga6oratory Section XesultslSampfe Comm entslQuaCfier Inefi�nitions
Sample ID: AD16429
Result/ Method Analysis
r`�` Qualifier Units Reference Date Validated by
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.
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, pl
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 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
A Temperature limits exceeded (samples frozen or >6°C) during storage, the data may not be accurate.
A The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
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 e
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.
P Elevated PQL" due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
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
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 tr
V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
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.
Y Elevated PQL" due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
J13 Standards used for this analyte are from an uncertified source. These are the only standards currently available for the analyte.
WSS Chemistry Laboratory>> 1623 Mail 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 3 of 3

DocuSign Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
AD16477 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc. Descr.:
1230 MORDECAI
County:
Wake
Collector:
M HALL
VisitlD
Region:
Raleigh
Report To
RRO
Location ID:
W1 E
River Basin
NEU
Collect Date:
01/04/2024
Priority
ROUTINE
Emergency
Collect Time:
12_00
Sample Matrix:
GROUNDWATER
COC Yes/No
Sample Depth
Loc. Type:
Influent
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS # Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 2.6 °C 1/4/24 MSWIFT
MIC
Collform, MF Fecal in liquid 1 1 B2 CFU/100ml SM 9222 D-1997 1/4/24 JJURGEVICH
Collform, MF Total in liquid
1
1 B2
CFU/100ml
SM 9222 B-1997
1/4/24
JJURGEVICH
7664-41-7
NH3 as N in liquid
0.05
NUT
0.05 U,J8
mg/LasN
EPA350.1 REV
1/17/24
ALWILLIAMS
E701177
NO2+NO3 as N in liquid
0.03
0.03 U,J8
mg/Las N
EPA353.2 REV 2
1/17/24
ALWILLIAMS
7723-14-0
Phosphorus_total as P in liquid
0.03
0.03 U,J8
mg/LasP
EPA365.1 REV
1/23/24
ALWILLIAMS
TKN_N
Total Kjeldahl N as N In liquid
0.4
0.4 U,J8
mg/Las N
EPA351.2 REV 2
1/17/24
ALWILLIAMS
24959-67-9
Bromide
0.4
WET
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16887-00-6
Chloride
1
7.4J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16984-48-8
Fluoride
0.4
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
14808-79-8
Sulfate
2
12 J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
18496-25-8
Sulfide in liquid
0.1
0.1 U,J6,J
mg/L
SM4500-S2-D-2000
1/11/24
ALWILLIAMS
Total Dissolved Solids in liquid
12.5
226 J8
mg/L
SM 2540 C-1997
1/9/24
ALWILLIAMS
7440-22-4
Ag by ICPMS
1.0
MET
1.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7429-90-5
Al by ICP
50
62
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-36-0
Antimony by ICPMS
10
10 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-38-2
As by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7429-90-5
B by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-38-3
Ba by ICP
10
160
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-41-7
Be by ICP
5.0
5.0 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-70-2
Ca by ICP
0.20
58 P
mg/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-43-9
Cd by ICPMS
0.50
0.50 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-48-4
Cobalt by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-47-3
Cr by ICPMS
5.0
5.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-50-8
Cu by ICPMS
2.0
5.1
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7439-89-6
Fe by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
Hardness by Calculation
1.0
170
mg/L
SM 2340B-1997
2/2/24
JJURGEVICH
7439-97-6
Hg 245.1
0.20
0.20 U
ug/L
EPA245.1 Rev3
1/23/24
JJURGEVICH
7440-09-7
K by ICP
0.10
0.60
mg/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7439-93-2
Li ICP
25
25 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
WSS Chemistry Laboratory>> 1623 Mail 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 1 of 3

DocuSion Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
NC IO WX Ga6oratory Section XesultslSampfe Comm entslQuaCzer Inefi�nitions
Sample ID: AD16477
Result/ Method Analysis
I-MOtt
7439-95-4
ruiaiYic 040111c
Mg by ICP
r�[�
0.10
Qualifier
6.7
Units
mg/L
Reference
EPA 200.7 Rev4.4
Date
1/26/24
Validated by
JJURGEVICH
7439-96-5
Mn by ICP
10
300
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-23-5
Na by ICP
0.10
13
mg/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-02-0
Ni by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7782-49-2
Se by ICPMS
1.0
1.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-66-6
Zn by ICPMS
10
60
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
Sample Comments
MIC:Fecal Coliform-B2-Counts from all filters = 0.
MIC:Total Coliform-B2-Counts from all filters = 0.
Wet: Sulfide-J6-Estimated The laboratory analysis was from an unpreserved.
The data may not be accurate.
Wet: Sulfide-J8-Estimated Temperature limits exceeded
( >6°C) during storage, the data may not be accurate.
WET:TDS-J8-Estimated-Sample temperature exceeded criteria during
storage due to building power shut down.
WET IC-J8-Estimated-Sample temperature exceeded criteria during storage
due to building power shut down.
NUT:AII-J8-Estimated-sample temperature exceeded criteria during
storage due to a planned power outage.
WSS Chemistry Laboratory>> 1623 Mail 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

DocuSion Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
111_%Q tf MIICIIYLC 04011 It:
NC IO WX Ga6oratory Section XesultslSampfe Comm entslQuaCier Inefi�nitions
Sample ID: AD16477
Result/ Method Analysis
r`�` Qualifier Units Reference 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 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.
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-Esti mated 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/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.
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 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.
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.
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, pl
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 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
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 e
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the Iabo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the Iabo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL" due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
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
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 tr
V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
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.
Y Elevated PQL" due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
J13 Standards used for this analyte are from an uncertified source. These are the only standards currently available for the analyte.
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or " T does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
Page 3 of 3

DocuSign Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
AD16478 North Carolina Division of Water Resources Water Sciences Section Laboratory Results
Loc. Descr.:
1230 MORDECAI
County:
Wake
Collector:
M HALL
VisitlD
Region:
Raleigh
Report To
RRO
Location ID:
W1 E
River Basin
NEU
Collect Date:
01/04/2024
Priority
ROUTINE
Emergency
Collect Time:
12_15
Sample Matrix:
GROUNDWATER
COC Yes/No
Sample Depth
Loc. Type:
Effluent
Final Report
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Result/ Method Analysis
CAS # Analyte Name PQL Qualifier Units Reference Date Validated by
LAB
Sample temperature at receipt by lab 2.6 °C 1/4/24 MSWIFT
MIC
Collform, MF Fecal in liquid 1 1 B2 CFU/100ml SM 9222 D-1997 1/4/24 JJURGEVICH
Collform, MF Total in liquid
1
1 B2
CFU/100ml
SM 9222 B-1997
1/4/24
JJURGEVICH
7664-41-7
NH3 as N in liquid
0.05
NUT
0.05 U,J8
mg/LasN
EPA350.1 REV
1/17/24
ALWILLIAMS
E701177
NO2+NO3 as N in liquid
0.03
0.03 U,J8
mg/Las N
EPA353.2 REV 2
1/17/24
ALWILLIAMS
7723-14-0
Phosphorus_total as P in liquid
0.03
0.03 U,J8
mg/LasP
EPA365.1 REV
1/23/24
ALWILLIAMS
TKN_N
Total Kjeldahl N as N In liquid
0.4
0.4 U,J8
mg/Las N
EPA351.2 REV 2
1/17/24
ALWILLIAMS
24959-67-9
Bromide
0.4
WET
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16887-00-6
Chloride
1
7.5J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
16984-48-8
Fluoride
0.4
0.4 U,J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
14808-79-8
Sulfate
2
12 J8
mg/L
EPA 300.0 rev2.1
1/12/24
ALWILLIAMS
18496-25-8
Sulfide in liquid
0.1
0.1 U,J6,J
mg/L
SM4500-S2-D-2000
1/11/24
ALWILLIAMS
Total Dissolved Solids in liquid
12.5
230 J8
mg/L
SM 2540 C-1997
1/9/24
ALWILLIAMS
7440-22-4
Ag by ICPMS
1.0
MET
1.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7429-90-5
Al by ICP
50
67
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-36-0
Antimony by ICPMS
10
10 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-38-2
As by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7429-90-5
B by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-38-3
Ba by ICP
10
160
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-41-7
Be by ICP
5.0
5.0 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-70-2
Ca by ICP
0.20
57 P
mg/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-43-9
Cd by ICPMS
0.50
0.50 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-48-4
Cobalt by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-47-3
Cr by ICPMS
5.0
5.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-50-8
Cu by ICPMS
2.0
5.5
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7439-89-6
Fe by ICP
50
50 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
Hardness by Calculation
1.0
170
mg/L
SM 2340B-1997
2/2/24
JJURGEVICH
7439-97-6
Hg 245.1
0.20
0.20 U
ug/L
EPA245.1 Rev3
1/23/24
JJURGEVICH
7440-09-7
K by ICP
0.10
0.61
mg/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7439-93-2
Li ICP
25
25 U
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
WSS Chemistry Laboratory>> 1623 Mail 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 1 of 3

DocuSion Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
NC IO WX Ga6oratory Section XesultslSampfe Comm entslQuaCzer Inefi�nitions
Sample ID: AD16478
Result/ Method Analysis
I-MOtt
7439-95-4
ruiaiYic 040111c
Mg by ICP
r�[�
0.10
Qualifier
6.7
Units
mg/L
Reference
EPA 200.7 Rev4.4
Date
1/26/24
Validated by
JJURGEVICH
7439-96-5
Mn by ICP
10
290
ug/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-23-5
Na by ICP
0.10
13
mg/L
EPA 200.7 Rev4.4
1/26/24
JJURGEVICH
7440-02-0
Ni by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7782-49-2
Se by ICPMS
1.0
1.0 U
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
7440-66-6
Zn by ICPMS
10
58
ug/L
EPA200.8 Rev5.4
1/29/24
JJURGEVICH
Sample Comments
MIC:Fecal Coliform-B2-Counts from all filters = 0.
MIC:Total Coliform-B2-Counts from all filters = 0.
Wet: Sulfide-J6-Estimated The laboratory analysis was from an unpreserved.
The data may not be accurate.
Wet: Sulfide-J8-Estimated Temperature limits exceeded
( >6°C) during storage, the data may not be accurate.
WET:TDS-J8-Estimated-Sample temperature exceeded criteria during
storage due to building power shut down.
WET IC-J8-Estimated-Sample temperature exceeded criteria during storage
due to building power shut down.
NUT:AII-J8-Estimated-sample temperature exceeded criteria during
storage due to a planned power outage.
WSS Chemistry Laboratory>> 1623 Mail 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

DocuSion Envelope ID: D704DOCE-35OF-4DO9-A63E-3F45952ODF16
111_%Q tf MIICIIYLC 04011 It:
NC IO WX Ga6oratory Section XesultslSampfe Comm entslQuaCier Inefi�nitions
Sample ID: AD16478
Result/ Method Analysis
r`�` Qualifier Units Reference 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 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.
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-Esti mated 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/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.
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 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.
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.
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, pl
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 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
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 e
N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the Iabo
N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the Iabo
N5 The component has been tentatively identified based on a retention time standard.
P Elevated PQL" due to matrix interference and/or sample dilution.
Q1 Holding time exceeded prior to receipt by lab.
Q2 Holding time exceeded following receipt by lab.
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
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 tr
V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s
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.
Y Elevated PQL" due to insufficient sample size.
Z1 Inability to analyze the sample.
Z2 Questions concerning data reliability.
J13 Standards used for this analyte are from an uncertified source. These are the only standards currently available for the analyte.
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or " T does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL.
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