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Home My WebLink AboutWQ0034775_Monitoring - 11-2020_20201222wood. 14 December 2020 North Carolina Department of Environmental Quality Division of Water Resources Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Subject: November 2020 Monitoring Well Sampling and Analysis Results Hexion Inc. Closed -Loop Recycle System Permit (WQ0034775) 333 Neils Eddy Road Riegelwood, North Carolina 28456 Wood E&IS Project No. 6480200031 To Whom it May Concern: IIJ cZ On behalf of Hexion Inc., Wood Environment & Infrastructure Solutions, Inc (Wood E&IS) is pleased to provide the Division of Water Resources (DWR) of the North Carolina Department of Environmental Quality (DEQ) with the results of the November 2020 monitoring well sampling event at the referenced site in Riegelwood, North Carolina. If you have questions regarding this report or need additional information, please contact Mr. Ben Moore at (910) 452-1185. Sincerely, Wood Environment & Infrastructure Solutions, Inc. � n -"-----.�._ i n W. Ben Moore Nick Parks " ao Technical Lead Technical Reviewer CZ Attachments: A) Compliance Monitoring Forms (GW-59 and GW-59A) B) Laboratory Analytical Reports Cc: Mr. Ronald Bazinet, Hexion Inc. Mr. Jeff Hamilton, Hexion Inc. Correspondence: Wood Environment & Infrastructure Solutions, Inc. 5710 Oleander Drive, Suite 110 Wilmington, North Carolina 28403 Tel (910) 452-1185 Fax (910) 791-1338 Licensure: NC Engineering F-1253 NC Geology C-247 woodplc.com GW-59A COMPLIANCE REPORT FORM Permit ## WQ0034775 (Submit one each monitoring period with GW--59 forms.) j Enter date monitoring results were due. (12 31 2020 Will this monitoring report (GW-59 and GW-59A) be submitted after the established due date? YES NO 2 Was any required information missing on the GW-59 report forms? YES NO IF the answer to question 1 or 21s "YES", list in the space provided below the well Identification number(s) and explain the problems encountered in obtaining the required information. 3 Are any of the monitor wells in need of repair or maintenance (damaged casing, unlocked or missing cap, missing Identification plate, area overgrown, etc.)? Ifthe answer is "Yes", contact the Regional Office forguidance. YES NO 4 Are any monitored constituents equal to or above the established standards? S NO If the answer to question 4 is `NO", skip. to section 8. If the answer to question 41s "YES" list the affected wells Individually with constituent(s) and concentrations) exceeding standards In the space provided below. WWMW-1: Total Dissolved Solids (1380 mg/L); Total Ammonia Nitrogen (610 mg/L); Sulfate (772 mg/L); pH (6.17) WWMW-2: Total Dlssolved Solids (679 mg/L); Total Ammonia Nitrogen (28.5 mg/L); Nitrate (48.9 mg/L); Sulfate (327 mg/L); pH (4.88 SU) 5 For the constituents Identified In question 4 above, have standards been exceeded previously for the same constituent(s) in the same well(s) in the last two years? YES NO If the answer to question 5 is "NO" skip to section 8. If the answer to question 5 Is "YES", list in the space provided below, each well with constituent(s) exceeding standards, concentrations) reported, and sample collection date for each occurrence (for the last two years). W WMW-1: Total Ammonia Nitrogen 953 mg/L (11/18/18), 775 mg/L (3/13/19) 468 mg/L (7/24/19), 517 mg/L (11/06/19), 783 mg/L (3/10/20),916 mg/L (7/16/20); Los 1100 mg/L (11/18/18), 776 mg/L (3/13/19), 582 mg/L (11/06/19), 1160 mg/L (3/10/20); 1090 mg/L (7/16/20); Sulfate 382 mg/L (11/18/18); 416 mg/L (11/06/19), 779 mg/L (3/10/20), 1470 mg/L (7/16/20); pH 11.97 (7/24/19); W W MW-2: Total Ammonia Nitrogen 21.7 mg/L (11/18/18), 46.6 mg/L (3/13/19), 56.1 mg/L (7/24/19), 39.4 mg/L (11/06/19), 34.3 mg/L (3/10/20), 48 mg/L (7/16/20); Nitrate 11.64.2 mg/L (7/24/19), 29.7 mg/L (11/06/19), 29.5 mg/L (3/10/20), 67.8 mg/L (7/16/20); pH 6.07 su (11/18/18), 5.50 su (3/13/19), 5.91 su (11/06/19), 6.15 su (3/10/20), 5.25 su (7/16/20) 6 Are the monitoring wells listed in section 5 located at or beyond the review boundary? YES CNO If the answer is "YES", a groundwater quality problem may be occurring. CONTACT THE REGIONAL OFFICE IMMEDIATELY FOR GUIDANCE. If the answer is "NO", monitoring wells may be Improperly located; contact the Reglonal Office. 7 is the permittee Implementing previously approved actions required by the Division involving this groundwater quality problem? YES NO If the answer to question 7 is 'YES", describe those actions /n the space provided below. If the answer to question 7 Is "NO", contact the Regional Office within 90 days; an evaluation may be required to determine the Impact the waste disposal system is having at the review and compliance boundaries surrounding this facility. Failure to do so may sublect the permittee to a Notice of Violation fines, and/or penalties. The Lined Pond has been permanently removed from closed -loop recycle service, Hexion has requested a permit modification. S The person completing this portion (GW-59A) of the monitoring report should sign below and submit this form with GW-59 forms for required wells to the address provided at the top of the current GW-59 form. lZjl2,o Signature Permittee (or Auth razed Agent) Date G W-59A 12/8/2003 SUBMIT FORM ON YELLOW PAPER ONLY DEPARTMENT OF ENVIRONMENT & NATURAL RESOURCES GROUNDWATER QUALITY MONITORING: DIVISION OF WATER QUALITY -INFORMATION PROCESSING UNIT COMPLIANCE REPORT FORM 1617 MAIL SERVICE CENTER, RALEIGH, NC 27699-1617 Phone: (919) 733-3221 FACILITY INFORMATION Please Print Clearly orType PERMIT Number: WQ0034775 Expiration Date: December31, 2021 Facility Name: Hexion Inc. Non -Discharge UIC Permit Name (if different): NPDES Other Facility Address: 333 Neils Eddy Road TYPE OF PERMITTED OPERATION BEING MONITORED Riegelwood (Street) NC 28456 County Columbus 0 Lagoon ■Remediation: Infiltration Gallery (City) (Stain' (Z".P) E Spray Field E Remediation: Contact Person: Mr. Ronald Bazinet Telephone#: (910) 655-2263 ext 5257 Rotary Distributor N Land Application of Sludge Well Location/Site Name: WWMW-1 No. of wells to be sampled: 2 Water Source Heat Pump N Other: CLRS from Permit SAMPLING INFORMATION If WELL WELL ID NUMBER (from Permit): WWMW-1 Date sample collected: November 24, 2020 FIELD ANALYSES: WAS Well Depth: 17.80 ft. Well Diameter: 2 in. pH 00400: 6.17 units Temp. 00010: 18.7 °C DRY at Depth to Water Level 82546: 9.64 ft. below measuring point Screened Interval: 7.8 ft. to 17.8 ft. Spec. Cond. 00094: 2340 µMhos time of sampling,check Measuring Point is 2.45 ft. above land surface Relative M.P. Elevation: 23.29 ft. Odor 00085: strong sulfide odor Volume of water pumped/bailed before sampling: 4.0 gallons Appearance black here:® Samples for metals were collected unfiltered: ■ YES ■ NO and field acidified: ■ YES NO LABORATORY INFORMATION Date sample analyzed: November 24 - December 5, 202o Laboratory Name: Environmental Chemists, Inc. Certification No. 94 PARAMETERS NOTE: Values should reflect dissolved and colloidal concentrations. COD 00335 mg/L Nitrite (NO2) as N 00615 <0.02 mg/L Pb - Lead 01051 ug/L Coliform: MF Fecal 31616 /100ml- Nitrate (NO3) as N 00620 0.07 mg/L Zn - Zinc 01092 mg/L Coliform: MF Total 31504 /100mL Phosphorus: Total as P 00665 1.43 mg/L (Note: Use MPN method for highly turbid samples) Orthophosphate 70507 mg/L Other (Specify Compounds and Concentration Units): issolved Solids:Total 70300 1380 mg/L Al - Aluminum 01105 mg/L Formaldehyde (8315A): 380 ug/L pH (Lab) 00403 units Ba - Barium 01007 ug/L TOC 00680 81.2 mg/L Ca - Calcium 00916 mg/L Chloride 00940 mg/L Cd - Cadmium 01027 ug/L Arsenic 01002 ug/L Chromium: Total 01034 ug/L Grease and Oils 00552 mg/L Cu - Copper 01042 mg/L ORGANICS: (by GC, GC/MS, HPLC) Phenol 32730 ug/L Fe - Iron 01045 ug/L (Specify test and method #. ATTACH LAB REPORT.) Sulfate 00945 772 mg/L Hg - Mercury 71900 ug/L Lab Report Attached? ■ Yes (1) E No (0) Specific Conductance 00095 µMhos K - Potassium 00937 mg/L VOC(GWVOC) method # 8260 low concentration Total Ammonia oo610 610 mg/L Mg - Magnesium 00927 mg/L method # (Ammonia Nitrogen; NH3as N; Ammonia Nitrogen, Total) Mn - Manganese 01055 ug/L ,method # TKN as N 00625 562 mg/L Ni - Nickel 01067 ug/L method # For Remediation Systems Only (Attach Lab Reports): Influent Total VOCs. mg/L Effluent Total VOCs: mg/L VOC Removal% Ronald Bazinet - Hexion Site Leader Permittee (or Authorized Aqent) Name and Title - Please print or type GW-59 Rev.2/2010 SUBMIT FORM ON YELLOW PAPER ONLY DEPARTMENT OF ENVIRONMENT & NATURAL RESOURCES GROUNDWATER QUALITY MONITORING: DIVISION OF WATER QUALITY -INFORMATION PROCESSING UNIT COMPLIANCE REPORT FORM 1617 MAIL SERVICE CENTER, RALEIGH, NC 27699-1617 Phone: (919) 733-3221 FACILITY INFORMATION Please Print Clearly or Type PERMIT Number: W00034775 Expiration Date: December 31, 2021 Facility Name: Hexion Inc. Non -Discharge UIC Permit Name (if different): NPDES Other Facility Address: 333 Neils Eddy Road TYPE OF PERMITTED OPERATION BEING MONITORED Riegelwood (Street) NC 28456 g County Columbus E Lagoon E Remediation: Infiltration Gallery (City) (State) (zip) E Spray Field N Remediation: Contact Person: Mr. Ronald Bazinet Telephone#: (910) 655-2263 ext 5257 N Rotary Distributor E Land Application of Sludge Well Location/Site Name: WWMW-2 No. of wells to be sampled: 2 0 Water Source Heat Pump 0 Other: CLRS WELL WELL ID NUMBER (from Permit): WWMW-2 Date sample collected: November 24, 2020 Well Depth: 13.21 ft. Well Diameter: 2 in. Depth to Water Level 82546: 5.33 ft. below measuring point Screened Interval: 3.21 ft. to 13.21 ft. Measuring Point is 1.56 ft. above land surface Relative M.P. Elevation: 15.89 ft. Volume of water pumped/bailed before sampling: 4.0 gallons Samples for metals were collected unfiltered: 0 YES NO and field acidified: 0 YES NO FIELD ANALYSES: pH 00400: 4.88 units Temp. 000lo: 20.0 °C Spec. Cond. 00094: 988 µMhos Odor 00085: none Appearance cloudy WAS DRY at time of sampling,check here: ■ LABORATORY INFORMATION Date sample analyzed: November 24 through December 5, 2020 Laboratory Name: Environmental Chemists, Inc. Certification No. 94 PARAMETERS NOTE: Values should reflect dissolved and colloidal concentrations. COD 00335 mg/L Nitrite (NO2) as N 00615 0.03 mg/L Pb - Lead 01051 ug/L Coliform: MF Fecal 31616 /100mL Nitrate (NO3) as N 00620 48.9 mg/L Zn - Zinc 01092 mg/L Coliform: MF Total 31504 /100mL Phosphorus: Total as P 00665 0.12 mg/L (Note: Use MPN method for highly turbid samples) Orthophosphate 70507 mg/L Other (Specify Compounds and Concentration Units): issolved Solids:Total 7o300 679 mg/L Al - Aluminum oilo5 mg/L Formaldehyde (8315A): 330 ug/L pH (Lab) 00403 units Ba - Barium 01007 ug/L TOC oo68o 5.90 mg/L Ca - Calcium 00916 mg/L Chloride 00940 mg/L Cd - Cadmium 01027 ug/L Arsenic 01002 ug/L Chromium: Total 01034 ug/L Grease and Oils 00552 mg/L Cu - Copper 01042 mg/L ORGANICS: (by GC, GC/MS, HPLC) Phenol 32730 ug/L Fe - Iron 01045 ug/L (Specify test and method #. ATTACH LAB REPORT.) Sulfate 00945 327 mg/L Hg - Mercury 71900 ug/L Lab Report Attached? 0 Yes (1) 0 No (0) Specific Conductance 00095 µMhos K - Potassium 00937 mg/L VOC (GWVOC) method # 8260 low concentration Total Ammonia 00610 28.5 mg/L Mg - Magnesium 00927 mg/L method # (Ammonia Nitrogen; NH3asN; Ammonia Nitrogen, Total) Mn - Manganese 01055 g ug/L ,method # TKN as N 00625 18.6 mg/L Ni - Nickel 01067 ug/L method # For Remediation Systems Only (Attach Lab Reports) Ronald Bazinet - Flexion Site Leader Permittee (or Authorized Aqent) Name and Title - Please print or type GW-59 Rev.2/2010 Influent Total VOCs: Totalmg/L Effluent • iplete, and that the laboratory analytical data was possibility of fines and imprisonment for knowin Wig mg/L VOC Removal% If/J-/l20 :envirochem ANALYTICAL & CONSULTING CHEMISTS Wood -AMEC 5710 Oleander Drive , Suite 110 Wilmington NC 28405 Attention: Ben Moore Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 ' 910.392.0223 Lab ' 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252,473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentalchemists.com Date of Report: Dec 10, 2020 Customer PO #: 6480200031 Customer ID: 11070019 Report #: 2020-19982 Project ID: Hexion CLRS Lab ID Sample ID: 20-50870 Site: WWMW-1 Test Collect Date/Time 11/24/2020 9:15 AM Method Matrix Sampled by Water Client Results Date Analyzed Sulfate EPA 300.0 772 mg/L 11/24/2020 Ammonia Nitrogen EPA 350.1 610 mg/L 12/04/2020 Total Dissolved Solids (TDS) SM 2540 C 1380 mg/L 11 /24/2020 Total Phosphorus SM 4500 P F 1.43 mg/L 12/07/2020 Total Organic Carbon (TOC) SM 5310 B 81.2 mg/L 11 /24/2020 1,1,1,2-Tetrachloroethane SW 846 method 82608/503013 < 0.50 pg/L 12/5/2020 1, 1, 1 -Trichloroethane SW 846 method 826OB/5030B < 0.50 pg/L 12/5/2020 1,1,2,2-Tetrachloroethane SW 846 method 826OB/5030B < 0.50 pg/L 12/5/2020 1,1,2-Trichloroethane SW 846 method 826OB/5030B < 0.50 pg/L 12/5/2020 1, 1 -Dichloroethane SW 846 method 826OB/5030B < 0.50 pg/L 12/5/2020 1, 1 -Dichloroethene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,1-Dichloropropene SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 1,2,3-Trichlorobenzene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,2,3-Trichloropropane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 1,2,4-Trichlorobenzene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,2,4-Trimethyl benzene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,2-Dibromo-3-Chloropropane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 1,2-Dibromoethane SW 846 method 626OB/5030B < 0.50 pg/L 12/5/2020 1,2-Dichlorobenzene SW 846 method 828OB15030B < 0.50 pg/L 12/5/2020 1,2-Dichloroethane SW 846 method 826013/5030B < 0.50 pg/L 12/5/2020 1,2-Dichloropropane SW 846 method 8260B15030B < 0.50 pg/L 12/5/2020 1,3,5-Trimethylbenzene SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 1,3-Dichlorobenzene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 1,3-Dichloropropane SW 846 method 826OB15030B < 0.50 pg/L 12/512020 1,4-Dichlorobenzene SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 2,2-Dichloropropane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Report #:: 2020-19982 Page 1 of 6 :envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 29405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentaichemists.com Wood -AMEC Date of Report: Dec 10, 2020 5710 Oleander Drive , Suite 110 Customer PO #: 6480200031 Wilmington NC 28405 Customer ID: 11070019 Attention: Ben Moore Report #: 2020-19982 Project ID: Hexion CLRS 2-Chlorotoluene SW 846 method 8260B15030B < 0.50 pg/L 12/5/2020 4-Chlorotoluene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Benzene SW 846 method 8260B15030B < 0.50 pg/L 12/5/2020 Bromobenzene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Bromochloromethane SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Bromodichloromethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Bromoform SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Bromomethane SW 846 method 8280B/5030B < 0.50 pg/L 12/5/2020 Carbon tetrachloride SW 846 method B2608/5030B < 0.50 pg/L 12/5/2020 Chlorobenzene SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Chloroethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Chloroform SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Chloromethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 cis-1,2-Dichloroethene SW 646 method 8260B/5030B < 0.50 pg/L 12/5/2020 cis-1,3-Dichloropropene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Dibromochloromethane SW 846 method 8260B/50306 < 0.50 pg/L 12/5/2020 Dibromomethane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Dichlorodifluoromethane SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Ethylbenzene SW 846 method 8260B150308 < 0.50 pg/L 12/5/2020 Hexachlorobutadiene SW 846 method 82SOB15030B < 0.50 pg/L 12/5/2020 1sopropylbenzene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 M+P Xylene SW 846 method 82608/5030B < 1.00 pg/L 12/5/2020 Methylene chloride SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Naphthalene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 n-Butylbenzene SW 846 method 825OB15030B < 0.50 pg/L 12/5/2020 n-Propylbenzene SW 845 method 8260B/5030B < 0.50 pg/L 12/5/2020 ortho-Xylene SW 846 method 8260815030E < 0.50 pg/L 12/5/2020 p-Isopropyltoluene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 sec -Butyl benzene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Styrene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Report # 2020-19982 Page 2 of 6 :envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentalchemists.com Wood -AM EC Date of Report: Dec 10, 2020 5710 Oleander Drive , Suite 110 Customer PO #: 6480200031 Wilmington NC 28405 Customer ID: 11070019 Attention: Ben Moore Report #: 2020-19982 Project ID: Hexion CLRS tert-Butylbenzene SW 846 method 6260B/5030B < 0.50 pg/L 12/5/2020 Tetrachloroethene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Toluene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Trans- 1,2-Dichloroethene SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 Trans- 1,3-dichloropropene SW 846 method 8260B/50306 < 0.50 pg/L 12/5/2020 Trichloroethene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Trichlorofluoromethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Vinyl chloride SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Formaldehyde SW846 8315A 380.0 pg/L 11/27/2020 Nitrate Nitrogen (Calc) Nitrite Nitrogen EPA 353.2 < 0.02 mg/L 11/25/2020 Nitrate+Nitrite-Nitrogen EPA 353.2 0.07 mg/L 11/30/2020 Nitrate Nitrogen Subtraction Method 0.07 mg/L 12/05/2020 Total Nitrogen (Calc) Total Kjeldahl Nitrogen (TKN) EPA 351.2 562 mg/L 12/09/2020 Total Nitrogen Total Nitrogen 562 mg/L 12/10/2020 Report # 2020-19982 Page 3 of 6 :envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910,392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentalchemists.com Wood -AMEC Date of Report: Dec 10, 2020 5710 Oleander Drive, Suite 110 Customer PO #: 6480200031 Wilmington NC 28405 Customer ID: 11070019 Attention: Ben Moore Report #: 2020-19982 Project ID: Hexion CLRS Lab ID Sample ID: Collect Date/Time Matrix Sampled by 20-50871 Site: WWMW-2 11/24/2020 9:00 AM Water Client Test Method Results Date Analyzed Sulfate EPA 300.0 327 mg/L 11/24/2020 Ammonia Nitrogen EPA 350.1 28.5 mg/L 12/02/2020 Total Dissolved Solids (TDS) SM 2540 c 679 mg/L 11/24/2020 Total Phosphorus SM 4500 P F 0.12 mg/L 12/07/2020 Total Organic Carbon (TOC) SM 5310 B 5.9 mg/L 11/24/2020 1, 1, 1,2-Tetrachloroethane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 1,1,1-Trichloroethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,1,2,2-Tetrachloroethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,1,2-Trichloroethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1, 1 -Dichloroethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,1-Dichloroethene SW 846 method 82BOB/5030B < 0.50 pg/L 12/5/2020 1,1-Dichloropropene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 1,2,3-Trichlorobenzene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,2,3-Trichloropropane SW 846 method 8260815030E < 0.50 pg/L 12/5/2020 1,2,4-Trichlorobenzene SW 846 method 8260815030E < 0.50 pg/L 12/5/2020 1,2,4-Trimethylbenzene SW 846 method 82608/50308 < 0.50 pg/L 12/5/2020 1,2-Dibromo-3-Chloropropane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 1,2-Dibromoethane SW 846 method 8260815030E < 0.50 pg/L 12/5/2020 1,2-Dichlorobenzene SW 846 method 8260615030E < 0.50 pg/L 12/5/2020 1,2-Dichloroethane SW 845 method 82608/5030B < 0.50 pg/L 12/5/2020 1,2-Dichloropropane SW 846 method 82608/50308 < 0.50 pg/L 12/5/2020 1,3,5-Trimethylbenzene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 1,3-Dichlorobenzene SW 846 method 8260E/5030B < 0.50 pg/L 12/5/2020 1,3-Dichloropropane SW 846 method 8260B/50306 < 0.50 pg/L 12/5/2020 1,4-Dichlorobenzene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 2,2-Dichloropropane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Report # 2020-19982 Page 4 of 6 [envinochem ANALYTICAL R CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentalchemists.com Wood -AMEC Date of Report: Dec 10, 2020 5710 Oleander Drive , Suite 110 Customer PO #: 6480200031 Wilmington NC 28405 Customer ID: 11070019 Attention: Ben Moore Report #: 2020-19982 Project ID: Hexion CLRS 2-Chlorotoluene SW 846 method 826013/503013 < 0.50 pg/L 12/5/2020 4-Chlorotoluene SW 846 method 8260815030E < 0.50 pg/L 12/5/2020 Benzene SW 846 method 8260B15030B < 0.50 pg/L 12/5/2020 Bromobenzene SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 Bromochloromethane SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Bromodichloromethane SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Bromoform SW B46 method 8260B/50308 < 0.50 pg/L 12/5/2020 Bromomethane SW 646 method 826OB15030B < 0.50 pg/L 12/5/2020 Carbon tetrachloride SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Chlorobenzene SW 846 method 82608/50308 < 0.50 pg/L 12/5/2020 Chloroethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Chloroform SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Chloromethane SW 846 method 82606/50308 < 0.50 pg/L 12/5/2020 cis-1,2-Dichloroethene SW 846 method 826013I503013 < 0.50 pg/L 12/5/2020 cis- 1,3-Dichloropropene SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Dibromochloromethane SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Dibromomethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Dichlorodifluoromethane SW 846 method 826OB150308 < 0.50 pg/L 12/5/2020 Ethylbenzene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Hexachlorobutadiene SW 846 method 8260B15030B < 0.50 pg/L 12/5/2020 Isopropylbenzene SW 846 method 826013/50308 < 0.50 pg/L 12/5/2020 M+P Xylene SW 646 method 826oB/5030B < 1.00 pg/L 12/5/2020 Methylene chloride SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 Naphthalene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 n-Butylbenzene SW 846 method 82608/50308 < 0.50 pg/L 12/5/2020 n-Propylbenzene SW 846 method 826013/50306 < 0.50 pg/L 12/5/2020 ortho-Xylene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 p-Isopropyltoluene SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 sec-Butylbenzene SW 846 method 8260B/50308 < 0.50 pg/L 12/5/2020 Styrene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Report #. 2020-19982 Page 5 of 6 envirochem ANALYTICAL & CONSULTING CHEMISTS Environmental Chemists, Inc. 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab - 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax info@environmentalchemists.com Wood -AMEC Date of Report: Dec 10, 2020 5710 Oleander Drive , Suite 110 Customer PO #: 6480200031 Wilmington NC 28405 Customer ID: 11070019 Attention: Ben Moore Report #: 2020-19982 Project ID: Hexion CLRS tert-B utyl benzene SW 846 method 8260815030B < 0.50 pg/L 12/5/2020 Tetrachloroethene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Toluene SW 846 method 826OB15030B < 0.50 pg/L 12/5/2020 Trans-1,2-Dichloroethene SW 846 method 826013/50306 < 0.50 pg/L 12/5/2020 Trans-1,3-dichloropropene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Trichloroethene SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Trichlorofluoromethane SW 846 method 8260B/5030B < 0.50 pg/L 12/5/2020 Vinyl chloride SW 846 method 82608/5030B < 0.50 pg/L 12/5/2020 Formaldehyde SW846 8315A 330.0 pg/L 11/27/2020 Nitrate Nitrogen (Calc) Nitrite Nitrogen EPA 353 2 0.03 mg/L 11/25/2020 Nitrate+Nitrite-Nitrogen EPA 353.2 43.9 mg/L 11/30/2020 Nitrate Nitrogen Subtraction Method 48.9 mg/L 12/05/2020 Total Nitrogen (Calc) Total Kjeldahl Nitrogen (TKN) EPA 351 2 18.6 mg/L 12/02/2020 Total Nitrogen Total Nitrogen 62.4 mg/L 12/08/2020 Comment: Reviewed by: Report #.. 2020-19982 Page 6 of 6 _77 Environmental Chemists, Inc. envirochem 6602 Windmill Way, Wilmington, NC 28405 • 910.392.0223 Lab • 910.392.4424 Fax 710 Bowsertown Road, Manteo, NC 27954 • 252.473.5702 Lab/Fax s" 255-A Wilmington Highway, Jacksonville, NC 28540 • 910.347.5843 Lab/Fax ANALYTICAL & CONSULTING CHEMISTS info@environmentalchemists.com Wood-Amec QC - 2020-19982 LCS Parameter True Value m /L Result M91L % Recovery Limits % Ammonia 5.0 5.1 102 90-110 Ammonia 5.0 5.0 100 90-110 NO2 0.60 0.63 105 90-110 NO3 & NO2 1.00 0.92 92 90-110 Sulfate 50.0 47.2 94 90-110 TDS 600 602 100 90-110 TOC 10.0 10.3 103 90-110 TKN 4.0 3.8 95 90-110 TKN 4.0 3.8 95 90-1 10 TP 1.60 1.50 94 90-110 MS/MSD Parameter True Value M911L Recovery mg/L % Recovery % Difference Limits % Recovery Limits % Difference Ammonia 4.0 4.0/3.8 100.1195 5 80-120 520 Ammonia 4.0 4.2/4.2 105/105 0 80-120 :5 20 NO2 0.50 0.5610.55 112,1110 2 80-120 <20 NO3 & NO2 0.50 0.49/0.50 981! 100 2 80-120 < 20 Sulfate 10.0 8.0/8.0 80/80 0 80-120 520 TDS 75.0 83.0 111 NIA 80-120 <20 TOC 10.0 9.5 95 N/A N/A <20 TKN 4.0 3.713.8 92.195 3 N/A < 20 TKN 4.0 3.8,14.0 95,1100 5 N/A :5 20 TP 2.00 1.99 / 1.85 99/ 93 6 80/ 120 < 20 DUPLICATE SAMPLES Parameter Results mg/L % Difference Limits Ammonia XIA N.!A N/A <_ 10 Ammonia N/A NA N/A N/A NO2 N/A NIA N/A < 10 NO3 & NO2 N,!A NA N/A < 20 Sulfate 7.0 7.0 0 < 10 TDS 1408 1355 4 <10 TOC 9.7 9.4 3 <_ l 0 TKN NA N/A NIA <10 TKN NIA NA NIA <10 TP N/A N/A N/A <10 BLANK Parameter Results mg L Limit mg/L Ammonia <0.1 0.1 Ammonia <0.1 0.1 NO2 <0.01 0.01 NO3 & NO2 <0.01 0.01 Sulfate <2.5 2.5 TDS <2.5 2.5 TOC <0.25 0.25 TKN <0.25 0.25 TKN <0.25 0.25 TP <0.02 0.02 Analytical Environmental Services, Inc Date: 2-Dec-20 Client: Environmental Chemists, Inc. Client Sample ID: 450870 Project Name: 50870-58071 Collection Date: 11/24/2020 9:15:00 AM Lab ID: 2011T12-001 Matrix: Aqueous Analyses Result aceporong Qual Units BatchlD Dilution Date Analyzed Analyst Limit Factor Formaldehyde by SW8315A Formaldehyde 380 50 ug/L 306544 1 11/27/2020 16 23 HL Qualifiers: • Value exceeds maximum contaminant level BRL Below reporting limit H Holding times for preparation or analysis exceeded N Analyte not NELAC certified B Analyze detected in the associated method blank > Greater than Result value E Estimated (value above quantization range) S Spike Recovery outside limits due to matrix Narr See case narrative F Analyzed in the lab which is a deviation from the method < Less than Result value ! Estimated value detected below Reporting Limn Page 3 of 8 Analytical Environmental Services, Inc Date: 2-Dec-20 Client: Environmental Chemists, Inc. Client Sample ID: #50871 Project Dame: 50870-58071 Collection Date: 11/24/2020 9:00:00 AM Lab ID: 2011 TI2-002 Matrix: Aqueous Analyses Result Reporting Dilution Limit Qual Units BatchlD Factor Date Analyzed Analyst Formaldehyde by SW8315A Formaldehyde Qaalirters: ' Value exceeds maximum comammant level BRL Below reporting limn If Holding times for preparation or analysis exceeded N Analyte not NELAC certified B Analyse detected in the associated method blank ' > Greater than Result value 330 50 ug/L 306544 1 11 /27/2020 16:37 HL E Estimated (value above quannuuon range) S Spike Recovery outside limits due to matrix Nair See case narrative F Analyzed in the lab which is a deviation from the method < Less than Result value 1 Estimated value detected below Reporting Limit Page 4 of 8 Environmental Chemist, Inc., Wilmington, NC Lab #94 6602 Windmill Way Wilmington, NC 28405 910.392.0223 Sample Receipt Checklist Client: woo b Date: t ReportNumber: 40 -- To Z Receipt of sample: ECHEM Pickup ❑ Client Delivery UPS ❑ FeclEx ❑ Other ❑ YES ❑ NO N/A 1. Were custody seals present on the cooler? ❑ YES 10 NO I EV N/A 2. If custody seals were present, were they intact/unbroken? temperature upon receipt 15.3_°C Corrected temperature upon receipt 1Original How temperature taken: ❑ Temperature Blank Against Bottles IR Gun ID: Thomas Traceable S/N 192511657 IR Gun Correction Factor "C: 0.0 ❑ YES 10 NO 3. If temperature of cooler exceeded 6°C, was Project Mgr./QA notified? YES 10 NO 4. Were proper custody procedures (relinquished/received) followed? YES 10 NO 1 5. Were sample ID's listed on the COC? YES 10 NO 1 6. Were samples ID's listed on sample containers? YES ❑ NO 1 7. Were collection date and time listed on the COC? YES 113 NO 1 8. Were tests to be performed listed on the COC? YES ❑ NO 1 9. Did samples arrive in proper containers for each test? �( YES ❑ NO 110. Did samples arrive in good condition for each test? YES ❑ NO 111. Was adequate sample volume available?' YES 10 NO 112. Were samples received within proper holding time for requested tests? YES I0 NO 113. Were acid preserved samples received at a pH of <2? ❑ YES 10 NO 114. Were cyanide samples received at a pH >12? ❑ YES 10 NO 115. Were sulfide samples received at a pH >9? YES 10 NO 116. Were NH3/TKN/Phenol received at a chlorine residual of <0.5 m/L? ** YES ❑ NO 17. Were Sulfide/Cyanide received at a chlorine residual of <0.5 m/L? q YES 10 NO 118. Were orthophosphate samples filtered in the field within 1S minutes? * TOC/Volatiles are pH checked at time of analysis and recorded on the benchsheet. ** Bacteria samples are checked for Chlorine at time of analysis and recorded on the benchsheet Sample Preservation: (Must be completed for any sample(s) incorrectly preserved or with headspace) Sample(s) were received incorrectly preserved and were adjusted accordingly by adding (circle one): HZ504 HNO3 HCI NaOH Time of preservation: If more than one preservative is needed, notate in comments below Note: Notify customer service immediately for incorrectly preserved samples. Obtain a new sample or notify the state lab if directed to analyzed by the customer. Who was notified, date and time: Volatiles Sample(s) were received with headspace COMMENTS: DOC. QA.002 Rev 1 °C - ENVIRONMENTAL CHEMISTS, INC Analytical & Consulting Chemists NCDENR: DWQ CERTIFICATION # 94 NCDHHS: DLS CERTIFICATION # 37729 COLLECTION AND CHAIN OF CUSTODY 6602 Windmill Way Wilmington, NC 28405 OFFICE: 910-392-0223 FAX 910-392-4424 info@environmentalchemists.com Client: 6T) PROJECT NAME: REPORT NO: ZO_ 1 9162- ADDRESS: S-7) 0 (0 , 4 r e CONTACT NAME: PO NO: OUS 7 '67) REPORT TO: >,�,, VVi, (Sb r ( PHONE/FAX: COPY TO: email eve , 1'V n yb Wm-IDI L Sampled By: SAMPLE TYPE: I = Influent, E = Effluent, W = Well, ST = Stream, SO = Soil, SL = Sludge, Other: Sample Identification Collection a 1>1 W E0. � W AN a 6 o 0 " C U' �° o o a " v E J o `6 v E d O .0 o o. O W to m g Z PRESERVATION ANALYSIS REQUESTED Date Time Temp w z0 z � = o"= N s z = <= z o ~ Uj I.- -1 w o ,l P Tom � C P C P G G G c -TV S G MNM - �j �, C �' S f GG C P e h cn Sgctt( 0't C ko G G NOTICE - DECHLORINATION: Samples for Ammonia, TKN, Cyanide, Phenol and Bacteria must be dechlorinated (0.5 ppm or less) in the field at the time of collection. See reverse for Instructions Transfer Relinquished By: Date/Time Received By: Date/Time 1. 1 L (26 2. Temperature when Receeved °C: S • .J Accepted: jected: Resarr l Req ested: Delivered By: �/� .�; Received By: Date: 'l Time: Comments: �— TURNAROUND: �` �`