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Home My WebLink AboutWI0400011_Report of Geothermal Well Sampling_20210616ROY COOPER Governor JOHN NICHOLSON Interim Secretory S. DANIEL SMITH Director Mr. Robert Risen 3057 Lori Lane Yadkinville, North Carolina 27055 NORTH CAROLINA Environmental Quality June 16, 2021 SUBJECT: Laboratory Analytical Results Geothermal Heating/Cooling Water Return Wells Permit No. WI0400011 Yadkin County Dear Mr. Risen: On April 22, 2021, Jim Gonsiewski of the Division of Water Resources (DWR) collected groundwater samples from the influent and effluent access points to your Geothermal Heating/Cooling Water Return Wells. The samples were sent to the DWR Central Laboratory in Raleigh, NC for analysis. The samples were analyzed for fecal coliform, bromide, chloride, fluoride, sulfate, total dissolved solids, nitrate and nitrite, aluminum, antimony, arsenic, barium, beryllium, calcium, cadmium, chromium, cobalt, copper, iron, lead, lithium, magnesium, manganese, molybdenum, nickel, potassium, selenium, silver, sodium, thallium, vanadium, and zinc. Laboratory analytical results from the samples did not detect any constituents above the State of North Carolina 2L (NC2L) groundwater standards. We appreciate your cooperation in the collection of these samples. If you have any questions, please contact me at (336) 776-9800 or via email at jim.gonsiewski@ncdenr.gov. Sincerely, CDocuSlgned by: P a°V14i"jd E197B66F179D45F... James J. Gonsiewski, P.G. Hydrogeologist Water Quality Regional Operations Section Division of Water Resources, NCDEQ — WSRO enc.: Laboratory Analytical Reports cc: WSRO Electronic Files Laserfiche Files a E Q*) OD.4 amtmkm.Mw nerdnr� .6/ North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 West Hanes Mill Road, Suite 300 I Winston-Salem, North Carolina 27105 336.776.9800 - >T I_ ] . lIIT l_ •�-. a"�. f-:T � I 1 - 1 4 I J 4- xi:. 1 tl 1 1 ❑ 1:1 ❑ 111 - I - .1111 I, I II 1 11 :1 1 - I ❑ _ I 1: ii1"1 P .11 kit 1= I :1: .!: it ,1'i• .11 s[l.�y. :i::-Lr1.. I /:,: 1" .:: .1 if_ I FI_IN a -11 :.a - Itf.rl -,. I.'• I - k...--x-rt�= :•�".: p_��-� r = .I .1:T - if f. 011 I11-;r -" =1 a:I i :x 1. ` • ..111 = - i 17,'] n=,i, },i' _ il.' I I_ = t :1: 1 7I114. T-.y1:11,f �;2ui. :^-k. p_�I•}IF _ - 1-'Ti .. 11� te.. Iz-x!r 1" T. 11 I: - r._[h / TS'� - :I--_I]I: 1 i.tj I - - - Y'., YI— _ I -'IF; '41:7I ➢ I: 1. G 11 I1 MI_i' f; i 6, :..11_ ;- 1! •' "An '' I 11: ■ t .7 »::. I II x tt11� - 11 AC83941 Loc. Descr.: County. Region: River Basin Emergency COC Yes/No North Carolina Division of Water Resources Water Sciences Sect'on Laboratory Results RISON RESIDENCE Yadkin Winston-Salem YAD Collector: J GONSIEWSKI Report To WSRO Collect Date: 04/22/2021 Collect Time: 10_42 Sample Depth Visitl0 Location ID: Priority Sample Matrix: Loc. Type. Final Report WSRO NLC ROUTINE GROUNDWATER Water Supply Sample ID: PO Number # Date Received: Time Received: Labworks Login ID Delivery Method Final Report Date: Report Print Date: AC83941 04/23/2021 08:30 TASCENZOI NC Courier 6/11/21 06/11/2021 If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes. CAS # Analyte Name Sample temperature at receipt by lab PQL Result/ Qualifier LAB 1.1 Units °C Method Reference Analysis Date Validated by 4/23/21 MSWIFT Coliform, MF Fecal in liquid 1 MIC 1 B2,Q1 CFU/100m1 SM 9222 D-1997 4/23/21 JJURGEVICH Coliform, MF Total in liquid 1 1 B2,Q1 CFU/100m1 SM 9222 B-1997 4/23/21 JJURGEVICH 14797-55-8 Nitrate as N in liquid 0.02 NUT 0.57 mg/Las N EPA 353.2 REV 2 4/28/21 ALWILLIAMS 14797-65-0 Nitrite as N in liquid 0.01 0.01 U mg/L as N EPA 353.2 REV 2 4/23/21 ALWILLIAMS E701177 NO2+NO3 as N in liquid 0.02 0.57 mg/L as N EPA 353.2 REV 2 4/28/21 ALWILLIAMS 24959-67-9 Bromide 0.4 WET 0.4 U, Q2 mg/L EPA 300.0 rev2 1 5/21/21 ALWILLIAMS 16887-00-6 Chloride 1.0 2.4 Q2 mg/L EPA 300.0 rev2.1 5/21/21 ALWILLIAMS 16984-48-8 Fluoride 0.4 0.4 U, Q2 mg/L EPA 300.0 rev2.1 5/21/21 ALWILLIAMS 14808-79-8 Sulfate 2.0 2.0 U, Q2 mg/L EPA 300.0 rev2 1 5/21/21 ALWILLIAMS pH in Liquid 6.9 pH Units 4/23/21 ALWILLIAMS Total Dissolved Solids in liquid 12 98 mg/L SM 2540 C-1997 4/28/21 ALWILLIAMS 7440-22-4 Ag by ICPMS 1.0 MET 1.0 U ug/L EPA 200 8 Rev5.4 5/6/21 JJURGEVICH 7429-90-5 Al by ICP 50 50 U ug/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7440-36-0 Antimony by ICPMS 10 10 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-38-2 As by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-38-3 Ba by ICP 10 20 ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-41-7 Be by ICP 5.0 5.0 U ug/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7440-70-2 Ca by ICP 0.10 12 mg/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7440-43-9 Cd by ICPMS 0.50 0.50 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-48-4 Cobalt by ICP 50 50 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-47-3 Cr by ICPMS 5.0 5.0 U ug/L EPA 200 8 Rev5 4 5/6/21 JJURGEVICH 7440-50-8 Cu by ICPMS 2.0 160 ug/L EPA 200.8 Rev5 4 5/6/21 JJURGEVICH 7439-89-6 Fe by ICP 50 50 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-09-7 K by ICP 0.10 1.6 mg/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7439-93-2 LI ICP 25 25 U ug/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7439-95-4 Mg by ICP 0.10 4.9 mg/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7439-96-5 Mn by ICP 10 10 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7439-98-7 Mo by ICPMS 10 10 U ug/L EPA 200 8 Rev5.4 5/6/21 JJURGEVICH 7440-23-5 Na by ICP 0.10 6.2 mg/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699-1623 (919) 733-3908 "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 rD'W , Laboratory Section RsuCts/SarnpCe Comments/Qyalifier Defsnitions Sample ID: AC83941 CAS # Analyte Name 7440-02-0 Ni by ICPMS PQL 2.0 Result/ Qualifier 2.0 U Method Units Reference ug/L EPA 200.8 Rev5.4 Analysis Date Validated by 5/6/21 JJURGEVICH 7439-92-1 Pb by ICPMS 2.0 2.0 U uglL EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7782-49-2 Se by ICPMS 1.0 1.0 U ug/L EPA 200.8Rev5.4 5/6/21 JJURGEVICH 7440-28-0 Thallium (TI) ICPMS 2.0 2.0 U uglL EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-62-2 V by ICP 10 10 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-66-6 Zn by ICPMS 10 11 ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH Sample Comments MIC:Fecal Coliform-B2-Counts from all filters = 0. MIC:Fecal Coliform-Q1-Sample exceeded holding time prior to receipt at lab. MIC:Total Coliform-B2-Counts from all filters = 0. MIC:Total Coliform-Q1-Sample exceeded holding time prior to receipt at lab. WET:F-Q2-estimated-sample hold time exceeded after receipt by lab due to instrum WET:CI-Q2-estimated-sample hold time exceeded after receipt by lab due to instru WET:Br-Q2-estimated-sample hold time exceeded after receipt by lab due to instru WET:SO4-02-estimated-sample hold time exceeded after receipt by lab due to instr WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699-1623 (919) 733-3908 "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 VI R, Laboratory Section Results/Sample Comments/Qualifier Definitions Sample ID: AC83941 CAS # Analyte Name PQL Result/ Qualifier 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 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 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/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, 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 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 N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is Tess 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 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 (919) 733-3908 '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 AC83942 North Carolina Division of Water Resources Water Sciences Section Laboratory Results Loc. Descr.: RISON RESIDENCE County: Yadkin Collector: J GONSIEWSKI VisitID Region: Winston-Salem Report To WSRO Location ID: WSRO_NLC River Basin YAD Collect Date: 04/22/2021 Priority ROUTINE Emergency Collect Time: 11:08 Sample Matrix: GROUNDWATER COC Yes/No Sample Depth Loc. Type: Water Supply Final Report Sample ID: AC83942 PO Number # Date Received: 04/23/2021 Time Received: 08:30 Labworks LogintD TASCENZOI Delivery Method NC Courier Final Report Date: 6/11/21 Report Print Date: 06/11/2021 If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes. Result/ CAS # Analyte Name PQL Qualifier LAB Sample temperature at receipt by lab 1.1 Units oC Method Analysis Reference Date Validated by 4/23/21 MSWIFT MIC Coliform, MF Fecal in liquid 1 1 B2,Q1 CFU/100m1 SM 9222 D-1997 4/23/21 JJURGEVICH Coliform, MF Total in liquid 1 1 B2,Q1 CFU/100m1 SM 9222 B-1997 4/23/21 JJURGEVICH 14797-55-8 Nitrate as N in liquid NUT 0.02 0.58 mg/L as N EPA 353.2 REV 2 4/28/21 ALWILLIAMS 14797-65-0 Nitrite as N in liquid 0.01 0.01 U mg/L as N EPA 353.2 REV 2 4/23/21 ALWILLIAMS E701177 NO2+NO3 as N in liquid 0.02 0.58 mg/L as N EPA 353.2 REV 2 4/28/21 ALWILLIAMS 24959-67-9 Bromide 0.4 WET 0.4 U, Q2 mg/L EPA 300.0 rev2.1 5/22/21 ALWILLIAMS 16887-00-6 Chloride 1.0 2.3 Q2 mg/L EPA 300.0 rev2.1 5/22/21 ALWILLIAMS 16984-48-8 Fluoride 0.4 0.4 U, Q2 mg/L EPA 300.0 rev2.1 5/22/21 ALWILLIAMS 14808-79-8 Sulfate 2.0 2.0 U, Q2 mg/L EPA 300.0 rev2.1 5/22/21 ALWILLIAMS pH in Liquid 6.8 pH Units 4/23/21 ALWILLIAMS Total Dissolved Solids in liquid 12 100 mg/L SM 2540 C-1997 4/28/21 ALWILLIAMS 7440-22-4 Ag by ICPMS MET 1.0 1.0 U ug/L EPA 200.8 Rev5 4 5/6/21 JJURGEVICH 7429-90-5 Al by ICP 50 50 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-36-0 Antimony by ICPMS 10 10 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-38-2 As by ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-38-3 Ba by ICP 10 20 ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-41-7 Be by ICP 5.0 5.0 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-70-2 Ca by I C P 0.10 12 mg/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7440-43-9 Cd by ICPMS 0.50 0.50 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-48-4 Cobalt by ICP 50 50 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-47-3 Cr by ICPMS 5.0 5.0 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-50-8 Cu by ICPMS 2.0 22 ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7439-89-6 Fe by ICP 50 50 U ug/L EPA200.7 Rev4.4 5/6/21 JJURGEVICH 7440-09-7 K by ICP 0.10 1.5 mg/L EPA200.7 Rev4.4 5/6/21 JJURGEVICH 7439-93-2 Li ICP 25 25 U ug/L EPA200.7 Rev4.4 5/6/21 JJURGEVICH 7439-95-4 Mg by ICP 0.10 4.8 mg/L EPA 200.7 Rev4 4 5/6/21 JJURGEVICH 7439-96-5 Mn by ICP 10 10 U ug/L EPA200.7 Rev4 4 5/6/21 JJURGEVICH 7439-98-7 MO by ICPMS 10 10 U ug/L EPA 200.8Rev5 .4 5/6/21 JJURGEVICH 7440-23-5 Na by ICP 0.10 6.1 mg/L EPA200.7 Rev4.4 5/6/21 JJURGEVICH WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699-1623 (919) 733-3908 "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 1DIA, Ga6oratorySection 1�su(ts/Sampee Comments/QuaCfrer(Definitions Sample ID: AC83942 CAS # 7440-02-0 Analyte Name Ni by ICPMS PQL 2.0 Result) Qualifier 2.0 U Units ug/L Method Reference EPA 200.8 Rev5.4 Analysis Date Validated by 5/6/21 JJURGEVICH 7439-92-1 Pb by ICPMS 2.0 2.0 U ug/L EPA200.8 Rev5.4 5/6/21 JJURGEVICH 7782-49-2 Se by ICPMS 1.0 1.0 U ug/L EPA200.8 Rev5.4 5/6/21 JJURGEVICH 7440-28-0 Thallium (TI) ICPMS 2.0 2.0 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH 7440-62-2 V by ICP 10 10 U ug/L EPA 200.7 Rev4.4 5/6/21 JJURGEVICH 7440-66-6 Zn by ICPMS 10 10 U ug/L EPA 200.8 Rev5.4 5/6/21 JJURGEVICH Sample Comments MIC:Fecal Coliform-B2-Counts from all filters = 0. MIC:Fecal Coliform-Q1-Sample exceeded holding time prior to receipt at lab. MIC:Total Coliform-B2-Counts from all filters = 0. MIC:Total Coliform-Q1-Sample exceeded holding time prior to receipt at lab. WET:F-Q2-estimated-sample hold time exceeded after receipt by lab due to instrum WET:CI-Q2-estimated-sample hold time exceeded after receipt by lab due to instru WET:Br-Q2-estimated-sample hold time exceeded after receipt by lab due to instru WET:SO4-02-estimated-sample hold time exceeded after receipt by lab due to instr WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699-1623 (919) 733-3908 "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 (D`GL R, Laboratory Section Rsu(ts/Sample Comments/Qua( r'Definitions Sample ID: AC83942 CAS # Analyte Name PQL Result/ Qualifier 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 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-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, 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 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 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 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 (919) 733-3908 "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