WI0500204_Inspection_20210709

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
July 9, 2021
Hooman Troy Ghashghaei
3011 Buckingham Way
Apex, NC 27502
Re: Geothermal Permit Renewal Inspection
3011 Buckingham Way
Apex, NC -Wake County
Permit #WI0500204
Dear Mr. Ghashghaei:
A groundwater sample was collected from your geothermal well system and submitted to the
Division of Water Resources Water Sciences Laboratory for analysis on April 1, 2021. Samples (results
attached) were collected at the influent (sample #AC83032) and effluent (sample #AC83031) ports.
The sample analysis report indicates that the following substances (but not limited to) were
detected in the influent sample (#AC83032): Sulfate was detected at 1300 parts per million (mg/L) and
manganese was detected at 50 parts per billion (ug/L). The detection of sulfate exceeds the 15A NCAC
02L .0202 groundwater standard for sulfate established at 250 mg/L The detection of manganese at 50
ug/L is at the maximum allowable concentration under the 02L rule.
A copy of the test results will be sent to the DWR, Classifications and Standards Branch for an
evaluation regarding the water sample. A health risk evaluation of the results has not been completed
given the water is not utilized for human consumption (DWR inspection 10-25-20).
If you have any questions regarding the results, please contact me at (9I9) 791-4200.
Sincerely,
/c-i____-
Eric Rice, Hydrogeologist
Division of Water Resources
Water Quality Regional Operations
Raleigh Regional Office
c: RRO file
Central Office-DWR
Wake County Health Department
North Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regirmal Office 13800 Barrett Drive I Raleigh. North Carolina 27609
919.791.4200

AC83032 North Carolina Division of Water Resources Water Sciences Sect' on Laboratory Results
Loc. Descr.: W10500204-INFLUENT
County: Wake Collector: B BYERS
Region: Raleinh Report To
River Basin Collect Date: 04/01/2021
Emergency Collect Time: g
COC Yes/No Sample Depth
VisitiD
Location ID: RRO NLC
Priority ROUTINE
Sample Matrix: GROUNDWATER
Loc. Type: Influent
Final Report
if this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
Sample ID: AC83032
PO Number #
Date Received: 04/01/2021
Time Received: 09:50
Labworks LoginiD MSWIFT
Delivery Method Hand Delivered
Final Report Date: 6/23121
Report Print Date: 08125/2021
CAS # Analvte Name
Sample temperature at receipt by lab
PQL
Result/
Qualifier
LAB
11.1
Units
Method Analysis
Reference Date Validated by
4/1/21 MSWIFT
24959-67-9 Bromide
0.4
WET
0.4 U, Q2
mg/L
EPA 300.0 rev2.1
5f7/21 ALWILLIAMS
16887-00-6 Chloride
1.0 5.3 Q2 mg/L
EPA 300.0 rev2.1
5/7/21 ALWILLIAMS
16984-48-8 Fluoride
0.4
1.0 Q2
mg/L
EPA 300.0 rev2.1
5/7/21 ALWILLIAMS
14808-79-8 Sulfate
2.0 1300 Q2 mg/L
EPA 300.0 rev2.1
5!7/21 ALWILLIAMS
7440-22-4 Ag by ICPMS
1.0
MET
1.0 U
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7429-90-5 Al by ICP
50
190
ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-36-0 Antimony by ICPMS
10
10 U
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-38-2 As by ICPMS
2.0
2.0 U
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-38-3 Ba by ICP
10
10 U
ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440.41-7 Be by ICP
5.0
5.0 U
ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-70-2 Ca by ICP
0.10
530
mg/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440.43-9 Cd by ICPMS
0.50
0.50 U ugh
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-48-4 Cobalt by ICP
50 50 U ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-47-3 Cr by ICPMS
5.0 5.0 U ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-50-8 Cu by ICPMS
2.0
10
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7439-89-6 Fe by 1CP
50
160
ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-97-6 Hg 245.1
0.2
0.20 U
ug/L
EPA 245.1 Rev3 4/14/21 JJURGEVICH
7440-09-7 K by ICP
0.10
1.3
mg/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-93-2 Li ICP
25
25 U
ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-95-4 Mg by ICP
0.10
5.9
mg/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-96-5 Mn by ICP
10
50
ug/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-98-7 Mo by ICPMS
10
10 U
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-23-5 Na by ICP
0.10
27
mg/L
EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-02-0 Ni by ICPMS
2.0
3.3
ugh'.
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7439-92-1 Pb by ICPMS
2.0
2.1
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7782-49-2 Se by ICPMS
1.0
1.0 U
ug/L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-66-6 Zn by ICPMS
10
90
ug/L
EPA 200.8 Rev5.4 5/10/21 JJURGEVICH
WSS Chemistry Laboratory» 1823 Mail Service Center, Raleigh, NC 27699.1823 (919} 733-3908
"Not Detected" or "U" does not indicate the sample a ana yte free but that the analyte is not detected at or above the PQL
Page 1 of 3

NC r1M4fR. La6oratory Section.suit$/Sampire Comments/Quaf
Sample ID: AC83032
fier (Definitions
CAS #
Analvte Name
PQL
Result/
Qualifier
Units
Method Analysis
Reference Date
Validated by
Sample Comments
WET:F-42-estimated-Holding time exceeded following receipt by lab.
WET:CI-02-estimated-Holding time exceeded following receipt by lab.
WET:Br-02-estimated-Holding time exceeded following receipt by lab.
WET:SO4-02-estimated-Holding time exceeded following receipt by lab.
Al
B1
B2
B3
B4
B5
B6
B7
BB1
BB2
C
G1
G2
G3
G4
G5
G7
G8
G9
J1
J10
J11
NCDEQ-WSS-Chemistry Lab Data Qualifiers
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
Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
Coliform-Counts from all filters were zero. The value reported is based on the number of colonies per 100 ml that would have been
Coliform-Counlable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smalle:
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
Coliform-Too many colonies were present; too numerous to count (TNTC). TNTC is generally defined as >150 colonies.
Coliform-Estimated Value. Blank contamination evident.
Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" valu
MPN-All wells or tubes gave positive reactions. Value based upon the MPN Index and reported as a greater than ">" value.
Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L.
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:
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.
BOD-Evidence of toxicity. This is generally characterized by a significant increase in the BOD value as the sample concentration de
BOD-The glucose/ glutamic acid standard exceeded the range of 198 ± 30.5 mg/L.
BOD-Less than 1 mg/L DO remained for all dilutions set. The reported value is an estimated greater than value and is calculated for
BOO -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
BOD-The DO depletion of the dilution water blank produced a negative value.
Surrogate recovery limits have been exceeded.
Unidentified peak; estimated value.
The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
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

WC DIVA. Ga6oratorySection *su(tr/Sample Comments/Qt�fier(Definitions
Sample ID: AC83032
CAS #
Analyte Name
PQL
Result/
Qualifier
Units
Method
Reference
Analysis
Date
Validated by
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, 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 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/meihod. 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 t
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.
01 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 repo
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 tt
✓ 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.
WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
"Not Detected" or" "U" does not indicate the sample is analyte tree but that the analyte is not detected at or above the PQL
Page 3 of 3

AC83031 North Carolina Division of Water Resources Water Sciences Sect'on Laboratory Results
Loc. Denier.: WI0500204-EFFLUENT
County: Wake Collector: B BYERS VisitID
Region: Raleltth Report To RRO Location ID: RRO NLC
River Basin Collect Date: 04101/2021 Priority ROUTINE
Emergency Collect Time: mg Sample Matrix: GROUNDWATER
COC Yes/No Sample Depth Loc. Type: Effluent
Final Report
Sample ID: AC83031
PO Number 4
Date Received 04/01/2021
Time Received Q80
Labworks LoginiD r4SWIFT
Delivery Method Hand Delivered
Final Report Date: 6/23121
Report Print Date 00/25/2021
If this report Is labeled preliminary reports the results have not been validated. Do not use for Regulatory purposes.
Result/
CAS # Analyte Name P L Qualifier
LAB
Sample temperature at receipt by lab 11.1
Units
.0
Method Analysis
Reference Date Validated by
4/1/21 MSWIFT
24959-67-9 Bromide 0.4
WET
0.4 U, Q2
mg/L
EPA 300.0 rev2.1 5/7/21 ALWILLIAMS
16887-00-8 Chloride 1.0
5.1 Q2 mg/L EPA 300.0 rev2.1 5/7/21 ALWILLIAMS
18984-48-8 Fluoride 0.4
1.1 Q2 mg/L EPA 300.0 rev2.1 5/7/21 ALWILLFAMS
14808-79-8 Sulfate 2.0
1300 Q2 mg/L EPA 300.0 rev2.1 5/7/21 ALWILLIAMS
7440-22-4 Ag by ICPMS 1.0
MET
1.0 U ug/L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7429-90-5 Al by ICP 50 190 ug/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-36-0 Antimony by ICPMS 10 10 U ug/L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-38-2 As by ICPMS 2.0
2.0 U ug/L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-38-3 Ba by ICP
10 10 U ug/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-41-7 Be by ICP
5.0 5.0 U ug/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-70-2 Ca by ICP
0.10 540 mg•L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-43-9 Cd by ICPMS 0.50 0.50 U ug/L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440.48.4 Cobalt by ICP 50 50 U ug/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-47-3 Cr by ICPMS 5.0
5.0 U ug/L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-50-8 Cu by ICPMS
2.0 9.7
ug/L
EPA 200.8 Rev5.4 5/3121 JJURGEVICH
7439-89-6 Fe by ICP 50 61 ug/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-97-6 Hg 245.1 0.2 0.20 U ug/L EPA245.1 Rev3 4/14/21 JJURGEVICH
7440-09-7 K by ICP 0.10 1.3 mg,L EPA200.7 Rev4.4 4/29/21 JJURGEVICH
7439-93-2 Li ICP 25 25 U ugh. EPA200.7 Rev4.4 4/29/21 JJURGEVICH
7439-95-4 Mg by ICP 0.10 5,9 mg/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-96-5 Mn by ICP
10 36 ug/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7439-98-7
Mo by ICPMS
10 10 U ug/L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-23-5 Na by ICP 0.10 27 mg/L EPA 200.7 Rev4.4 4/29/21 JJURGEVICH
7440-02-0 Ni by ICPMS
2.0 3.8 ug/L EPA 200.8 Rev5.4 513/21 JJURGEVICH
7439-92-1 Pb by ICPMS 2.0 2.0 U
ug.L
EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7782-49-2 Se by ICPMS
1.0 1.0 U ug. L EPA 200.8 Rev5.4 5/3/21 JJURGEVICH
7440-66-6 Zn by ICPMS 10 140 ug?L EPA 200.8 Rev5.4 513/21 JJURGEVICH
WSS Chemistry Laboratory» 1823 Mall 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 PQL
Page 1 of 3

NC (MIR, Ga6oratory Section Wesufts/Sample Comments/QuaC
Sample ID: AC83031
f er'Definitions
CAS #
Analvte Name
PQL
Result/
Qualifier
Units
Method Analysis
Reference Date Validated by
Samule Comments
WET:F-02-estimated-Holding time exceeded following receipt by lab.
WETCI-02-estimated-Holding time exceeded following receipt by lab.
WET:Br-Q2-estimated-Holding time exceeded following receipt by lab.
WET:SO4-Q2-estimated-Holding time exceeded following receipt by lab.
Al
B1
B2
B3
B4
B5
B6
B7
BB1
BB2
C
G1
G2
G3
G4
G5
G7
G8
G9
J1
J10
J11
NCDEQ-WSS-Chemistry Lab Data Qualifiers
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
Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repor
Coliform-Counts from all filters were zero. The value reported is based on the number of colonies per 100 ml that would have been
Coliform-Countable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smaller
Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all fillers reported
Coliform-Too many colonies were present; too numerous to count (TNTC). TNTC is generally defined as >150 colonies.
Coliform-Estimated Value. Blank contamination evident.
Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc
MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" valu
MPN-All wells or tubes gave positive reactions. Value based upon the MPN Index and reported as a greater than ">" value.
Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated.
BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L.
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:
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.
BOD-Evidence of toxicity. This is generally characterized by a significant increase in the BOO value as the sample concentration de
BOD-The glucose/ glutamic acid standard exceeded the range of 198 ± 30.5 mg/L.
BOD-Less than 1 mg/L DO remained for all dilutions set. The reported value is an estimated greater than value and is calculated fo
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
BOO -The DO depletion of the dilution water blank produced a negative value.
Surrogate recovery limits have been exceeded.
Unidentified peak; estimated value.
The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration
WSS Chemistry Laboratory» 1823 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

WCLaboratory Sect ionAesu(ts/Same! Comments/Qua4 r{Definitions
Sample ID: AC83031
CAS #
Analvte Name
E
Result/
Qualifier
Units
Method
Reference
Analysis
Date Validated bq
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, 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 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 1
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 repo
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 II
✓ 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.
WSS Chemistry Laboratory» 1823 Mail Service Center, Raleigh, NC 27899-1823 [phone]
"Not Detected" or "Li" does not indicate the sample is analyte tree but that the analyte is not detected at or above the PQL.
Page 3 of 3