Caro Center Basement Water Test Results.pdf

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Attached to
491/20209. MAA; Caro Center - Various Building Demolitions
Solicitation number
RFQ - 171 - 230000000136
Issued by
Tuscola County, Capac Village, Michigan

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This document is a report on water testing results for the Caro Center Basement project in Grand Rapids, Michigan. The testing was conducted on behalf of Tuscola County and Capac Village, who are involved in the 491/20209 MAA Caro Center - Various Building Demolitions contract opportunity. The report includes analytical results for five wastewater samples collected on December 8, 2022 and received by the testing laboratory on December 9, 2022. The samples were tested to provide information to support the building demolition project. No additional details about the specific contract opportunity are provided in this report.

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December 16, 2022

693 Plymouth, NE

Grand Rapids, MI 49505

Mr. Allan Howland

Materials Testing Consultants

221312 Caro DemoClient Project

22L0412Trace ProjectRE:

Dear Mr. Howland:

Enclosed are your analytical results. The results of this report relate only to the samples listed in the body of this report.

All reports were examined through Trace's validation process to ensure that requirements for quality and completeness were satisfied. All reported analytical results were obtained in accordance with the methods referenced on the reports. Every practical effort was made to meet the reporting limit specifications for this work, however, some results may have raised reporting limits to correct for percent solids.

For clients that require NELAP Accreditation, Trace certifies that these test results meet all requirements of the NELAP Standard, except for those analytes with a "N" notation. These analytes have not been evaluated by NELAP at Trace's discretion and will not be reported unless requested by client.

If you have questions concerning this report, please contact me at 231.773.5998 or by email at jmink@trace-labs.com.

Sincerely, Senior Project Manager

Jon Mink

Enclosures

NJDEP Accreditation No. MI008

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 1 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

SAMPLE SUMMARY

Client Project ID:

Trace Project ID: 22L0412

221312 Caro Demo

Trace ID Sample ID Matrix Collected By Date Collected Date Received

22L0412-01 Equipment Blank Wastewater 12/08/22 09:00 12/09/22 13:17MP

22L0412-02 B26 Wastewater 12/08/22 09:30 12/09/22 13:17MP

22L0412-03 B11 Wastewater 12/08/22 10:00 12/09/22 13:17MP

22L0412-04 B55 Wastewater 12/08/22 10:30 12/09/22 13:17MP

22L0412-05 B2 Wastewater 12/08/22 11:00 12/09/22 13:17MP

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 2 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

AN EXPLANATION OF TERMS AND SYMBOLS WHICH MAY OCCUR IN THIS REPORT

DEFINITIONS

LCS Laboratory Control Sample

LCSD Laboratory Control Sample Duplicate

Matrix SpikeMS

MSD Matrix Spike Duplicate

Relative Percent DifferenceRPD

DUP Matrix Duplicate

<, ND or U Indicates the compound was analyzed for but not detected

RDL

MCL

TIC

Reporting Detection Limit

Tentatively Identified Compound

Maximum Contamination Limit

* Indicates a result that exceeds its associated MCL or Surrogate control limits

N Indicates that the laboratory is not accredited by NELAP for this compound

NA Indicates that the compound is not available.

NOTE: Samples for volatiles that have been extracted with a water miscible solvent were corrected for the total volume of the solvent/water mixture.

Solid matrices Method Blanks are at 100% solids as such results are the same wet or dry.

DATA QUALIFIERS

Trace ID: 22L0412-01

Analysis: EPA 8270E

Nitrobenzene-d5 Note 802 : One of the base/neutral surrogate recoveries was outside the control limits. Since the other two base/neutral surrogates were within the control limits, no data require qualification.

Trace ID: 22L0412-03

Analysis: EPA 608

Note 407 : The reporting limit was raised due to a post extraction dilution required based on matrix interference present in the sample.

Tetrachloro-m-xylene Note 301 : A dilution of 1:5 or greater was required on this sample. Consequently, surrogate recoveries are not available.

Trace ID: T130452-MSD1

Analysis: EPA 8270E

Fluorene Note 207 : The RPD between the MS and the MSD was out of control. Because both spike recoveries were in control, no data require qualification.

Trace ID: T130522-BS1

Analysis: EPA 8260D

1,2-Dibromoethane (EDB) Note 112 : The LCS recovery was out of control high. Because there were no positive results for this analyte in this QC batch, no data require qualification.

Trace ID: T130522-MS1

Analysis: EPA 8260D

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 3 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Acrylonitrile Note 242 : The MS was out of control high. Because there was no positive result in the non-spiked version of the sample, no data require qualification.

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 4 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

ANALYTICAL RESULTS

Trace Project ID:

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-01

Sample ID: Equipment Blank Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7470A

Batch: T130483

Mercury mg/L<0.00020 0.00020 1 12/13/22 12/13/22bjv jma N

METALS, TOTAL

Analysis Method: EPA 1631E

Batch: T130262

Mercury ng/L0.20 0.20 1 12/13/22 12/16/22ckd ckd N

Analysis Method: EPA 6020B

Batch: T130482

Arsenic mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs

Barium mg/L<0.10 0.10 1 12/13/22 12/13/22bjv acs

Cadmium mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs N

Chromium mg/L<0.010 0.010 1 12/13/22 12/13/22bjv acs

Copper mg/L<0.0040 0.0040 1 12/16/22 12/16/22gmr acs

Lead mg/L<0.0030 0.0030 1 12/13/22 12/13/22bjv acs

Selenium mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs N

Silver mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs

Zinc mg/L<0.050 0.050 1 12/13/22 12/13/22bjv acs

WET CHEMISTRY

Analysis Method: EPA 1664B

Batch: T130450

Oil & Grease (HEM) mg/L<5.0 5.0 1.002004 12/12/22 12/12/22kbc kbc

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T130452

Naphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

2-Methylnaphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthylene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 5 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-01

Sample ID: Equipment Blank Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Fluorene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Phenanthrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Anthracene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Pyrene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Benzo (a) anthracene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Chrysene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (b) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (k) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (a) pyrene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Indeno (1,2,3-cd) pyrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Dibenz (a,h) anthracene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Benzo (g,h,i) perylene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Surrogates:

%Nitrobenzene-d5 35 1 12/12/22 12/12/22* kbc avl36-103 802

%2-Fluorobiphenyl 38 1 12/12/22 12/12/22kbc avl36-119

%Terphenyl-d14 43 1 12/12/22 12/12/22kbc avl37-109

PESTICIDES/PCBS

Analysis Method: EPA 608

Batch: T130451

Aroclor-1016 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1221 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1232 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1242 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1248 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1254 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1260 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Surrogates:

%Tetrachloro-m-xylene 74 1 12/12/22 12/13/22kbc ahr18-105 N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 6 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-01

Sample ID: Equipment Blank Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8260D

Batch: T130522

Dichlorodifluoromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Vinyl chloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Trichlorofluoromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diethyl ether ug/L<10 10 1 12/13/22 12/13/22ats nw N

Tert-butyl alcohol ug/L<50 50 1 12/13/22 12/13/22ats nw N

1,1-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Acetone ug/L<50 50 1 12/13/22 12/13/22ats nw

Iodomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Carbon disulfide ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methyl-tert-butyl ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methylene chloride ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Acrylonitrile ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw trans-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diisopropyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

2-Butanone ug/L<25 25 1 12/13/22 12/13/22ats nw cis-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Ethyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Bromochloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrahydrofuran ug/L<90 90 1 12/13/22 12/13/22ats nw N

Chloroform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Carbon tetrachloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Amyl Methyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Cyclohexane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Trichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 7 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-01

Sample ID: Equipment Blank Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Dibromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Bromodichloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw cis-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

4-Methyl-2-pentanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Toluene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,2-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrachloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

2-Hexanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Dibromochloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2-Dibromoethane (EDB) ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Chlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Ethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw m,p-Xylene ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw N o-Xylene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw N

Xylenes, total ug/L<3.0 3.0 1 12/13/22 12/13/22ats nw

Styrene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromoform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Isopropylbenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,1,2,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,4-Dichloro-2-butene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Propylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,3,5-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,4-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw sec-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw p-Isopropyltoluene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,3-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,4-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 8 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-01

Sample ID: Equipment Blank Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

1,2,3-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dibromo-3-chloropropane ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw

Hexachloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2,4-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Naphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

2-Methylnaphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Surrogates:

%1,2-Dichloroethane-d4 96 1 12/13/22 12/13/22ats nw68-133

%Toluene-d8 101 1 12/13/22 12/13/22ats nw75-120

%4-Bromofluorobenzene 101 1 12/13/22 12/13/22ats nw69-119

%1,2-Dichlorobenzene-d4 100 1 12/13/22 12/13/22ats nw72-127

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 9 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-02

Sample ID: B26 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7470A

Batch: T130483

Mercury mg/L<0.00020 0.00020 1 12/13/22 12/13/22bjv jma N

METALS, TOTAL

Analysis Method: EPA 1631E

Batch: T130262

Mercury ng/L4.9 0.50 1 12/13/22 12/16/22ckd ckd N

Analysis Method: EPA 6020B

Batch: T130482

Arsenic mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs

Barium mg/L<0.10 0.10 1 12/13/22 12/13/22bjv acs

Cadmium mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs N

Chromium mg/L<0.010 0.010 1 12/13/22 12/13/22bjv acs

Copper mg/L<0.0040 0.0040 1 12/16/22 12/16/22gmr acs

Lead mg/L<0.0030 0.0030 1 12/13/22 12/13/22bjv acs

Selenium mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs N

Silver mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs

Zinc mg/L0.11 0.050 1 12/13/22 12/13/22bjv acs

WET CHEMISTRY

Analysis Method: EPA 1664B

Batch: T130450

Oil & Grease (HEM) mg/L<5.0 5.0 1.004016 12/12/22 12/12/22kbc kbc

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T130452

Naphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

2-Methylnaphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthylene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 10 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-02

Sample ID: B26 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Fluorene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Phenanthrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Anthracene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Pyrene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Benzo (a) anthracene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Chrysene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (b) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (k) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (a) pyrene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Indeno (1,2,3-cd) pyrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Dibenz (a,h) anthracene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Benzo (g,h,i) perylene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Surrogates:

%Nitrobenzene-d5 42 1 12/12/22 12/12/22kbc avl36-103

%2-Fluorobiphenyl 46 1 12/12/22 12/12/22kbc avl36-119

%Terphenyl-d14 44 1 12/12/22 12/12/22kbc avl37-109

PESTICIDES/PCBS

Analysis Method: EPA 608

Batch: T130451

Aroclor-1016 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1221 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1232 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1242 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1248 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1254 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1260 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Surrogates:

%Tetrachloro-m-xylene 78 1 12/12/22 12/13/22kbc ahr18-105 N

CERTIFICATE OF ANALYSIS

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Page 11 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-02

Sample ID: B26 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8260D

Batch: T130522

Dichlorodifluoromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Vinyl chloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Trichlorofluoromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diethyl ether ug/L<10 10 1 12/13/22 12/13/22ats nw N

Tert-butyl alcohol ug/L<50 50 1 12/13/22 12/13/22ats nw N

1,1-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Acetone ug/L<50 50 1 12/13/22 12/13/22ats nw

Iodomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Carbon disulfide ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methyl-tert-butyl ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methylene chloride ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Acrylonitrile ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw trans-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diisopropyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

2-Butanone ug/L<25 25 1 12/13/22 12/13/22ats nw cis-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Ethyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Bromochloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrahydrofuran ug/L<90 90 1 12/13/22 12/13/22ats nw N

Chloroform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Carbon tetrachloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Amyl Methyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Cyclohexane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Trichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 12 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-02

Sample ID: B26 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Dibromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Bromodichloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw cis-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

4-Methyl-2-pentanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Toluene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,2-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrachloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

2-Hexanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Dibromochloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2-Dibromoethane (EDB) ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Chlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Ethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw m,p-Xylene ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw N o-Xylene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw N

Xylenes, total ug/L<3.0 3.0 1 12/13/22 12/13/22ats nw

Styrene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromoform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Isopropylbenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,1,2,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,4-Dichloro-2-butene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Propylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,3,5-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,4-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw sec-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw p-Isopropyltoluene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,3-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,4-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 13 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-02

Sample ID: B26 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 09:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

1,2,3-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dibromo-3-chloropropane ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw

Hexachloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2,4-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Naphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

2-Methylnaphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Surrogates:

%1,2-Dichloroethane-d4 97 1 12/13/22 12/13/22ats nw68-133

%Toluene-d8 101 1 12/13/22 12/13/22ats nw75-120

%4-Bromofluorobenzene 101 1 12/13/22 12/13/22ats nw69-119

%1,2-Dichlorobenzene-d4 101 1 12/13/22 12/13/22ats nw72-127

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 14 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-03

Sample ID: B11 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7470A

Batch: T130483

Mercury mg/L<0.00020 0.00020 1 12/13/22 12/13/22bjv jma N

METALS, TOTAL

Analysis Method: EPA 1631E

Batch: T130262

Mercury ng/L470 5.0 10 12/13/22 12/16/22ckd ckd N

Analysis Method: EPA 6020B

Batch: T130482

Arsenic mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs

Barium mg/L0.25 0.10 1 12/13/22 12/13/22bjv acs

Cadmium mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs N

Chromium mg/L<0.010 0.010 1 12/13/22 12/13/22bjv acs

Copper mg/L0.017 0.0040 1 12/16/22 12/16/22gmr acs

Lead mg/L0.047 0.0030 1 12/13/22 12/13/22bjv acs

Selenium mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs N

Silver mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs

Zinc mg/L0.19 0.050 1 12/13/22 12/13/22bjv acs

WET CHEMISTRY

Analysis Method: EPA 1664B

Batch: T130450

Oil & Grease (HEM) mg/L<5.0 5.0 1.006036 12/12/22 12/12/22kbc kbc

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T130452

Naphthalene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

2-Methylnaphthalene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

Acenaphthylene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

Acenaphthene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 15 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-03

Sample ID: B11 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Fluorene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

Phenanthrene ug/L<2.0 2.0 2 12/12/22 12/12/22kbc avl

Anthracene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

Fluoranthene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Pyrene ug/L<5.0 5.0 2 12/12/22 12/12/22kbc avl

Benzo (a) anthracene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Chrysene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Benzo (b) fluoranthene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Benzo (k) fluoranthene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Benzo (a) pyrene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Indeno (1,2,3-cd) pyrene ug/L<2.0 2.0 2 12/12/22 12/12/22kbc avl

Dibenz (a,h) anthracene ug/L<2.0 2.0 2 12/12/22 12/12/22kbc avl

Benzo (g,h,i) perylene ug/L<1.9 1.9 2 12/12/22 12/12/22kbc avl

Surrogates:

%Nitrobenzene-d5 38 2 12/12/22 12/12/22kbc avl36-103

%2-Fluorobiphenyl 49 2 12/12/22 12/12/22kbc avl36-119

%Terphenyl-d14 42 2 12/12/22 12/12/22kbc avl37-109

407PESTICIDES/PCBS

Analysis Method: EPA 608

Batch: T130451

Aroclor-1016 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Aroclor-1221 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Aroclor-1232 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Aroclor-1242 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Aroclor-1248 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Aroclor-1254 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Aroclor-1260 ug/L<0.47 0.47 5 12/12/22 12/14/22kbc ahr N

Surrogates:

%Tetrachloro-m-xylene 5 12/12/22 12/14/22* kbc ahr18-105 301, N

CERTIFICATE OF ANALYSIS

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Page 16 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-03

Sample ID: B11 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8260D

Batch: T130522

Dichlorodifluoromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Vinyl chloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Trichlorofluoromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diethyl ether ug/L<10 10 1 12/13/22 12/13/22ats nw N

Tert-butyl alcohol ug/L<50 50 1 12/13/22 12/13/22ats nw N

1,1-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Acetone ug/L<50 50 1 12/13/22 12/13/22ats nw

Iodomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Carbon disulfide ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methyl-tert-butyl ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methylene chloride ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Acrylonitrile ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw trans-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diisopropyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

2-Butanone ug/L<25 25 1 12/13/22 12/13/22ats nw cis-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Ethyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Bromochloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrahydrofuran ug/L<90 90 1 12/13/22 12/13/22ats nw N

Chloroform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Carbon tetrachloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Amyl Methyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Cyclohexane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Trichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

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Page 17 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-03

Sample ID: B11 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Dibromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Bromodichloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw cis-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

4-Methyl-2-pentanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Toluene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,2-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrachloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

2-Hexanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Dibromochloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2-Dibromoethane (EDB) ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Chlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Ethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw m,p-Xylene ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw N o-Xylene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw N

Xylenes, total ug/L<3.0 3.0 1 12/13/22 12/13/22ats nw

Styrene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromoform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Isopropylbenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,1,2,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,4-Dichloro-2-butene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Propylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,3,5-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,4-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw sec-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw p-Isopropyltoluene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,3-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,4-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

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Page 18 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-03

Sample ID: B11 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

1,2,3-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dibromo-3-chloropropane ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw

Hexachloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2,4-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Naphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

2-Methylnaphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Surrogates:

%1,2-Dichloroethane-d4 95 1 12/13/22 12/13/22ats nw68-133

%Toluene-d8 101 1 12/13/22 12/13/22ats nw75-120

%4-Bromofluorobenzene 103 1 12/13/22 12/13/22ats nw69-119

%1,2-Dichlorobenzene-d4 101 1 12/13/22 12/13/22ats nw72-127

CERTIFICATE OF ANALYSIS

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Page 19 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-04

Sample ID: B55 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7470A

Batch: T130483

Mercury mg/L<0.00020 0.00020 1 12/13/22 12/13/22bjv jma N

METALS, TOTAL

Analysis Method: EPA 1631E

Batch: T130262

Mercury ng/L34 0.50 1 12/13/22 12/16/22ckd ckd N

Analysis Method: EPA 6020B

Batch: T130482

Arsenic mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs

Barium mg/L<0.10 0.10 1 12/13/22 12/13/22bjv acs

Cadmium mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs N

Chromium mg/L<0.010 0.010 1 12/13/22 12/13/22bjv acs

Copper mg/L0.015 0.0040 1 12/16/22 12/16/22gmr acs

Lead mg/L0.021 0.0030 1 12/13/22 12/13/22bjv acs

Selenium mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs N

Silver mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs

Zinc mg/L0.45 0.050 1 12/13/22 12/13/22bjv acs

WET CHEMISTRY

Analysis Method: EPA 1664B

Batch: T130450

Oil & Grease (HEM) mg/L<5.0 5.0 1.007049 12/12/22 12/12/22kbc kbc

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T130452

Naphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

2-Methylnaphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthylene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 20 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-04

Sample ID: B55 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Fluorene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Phenanthrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Anthracene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Pyrene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Benzo (a) anthracene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Chrysene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (b) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (k) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (a) pyrene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Indeno (1,2,3-cd) pyrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Dibenz (a,h) anthracene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Benzo (g,h,i) perylene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Surrogates:

%Nitrobenzene-d5 53 1 12/12/22 12/12/22kbc avl36-103

%2-Fluorobiphenyl 61 1 12/12/22 12/12/22kbc avl36-119

%Terphenyl-d14 49 1 12/12/22 12/12/22kbc avl37-109

PESTICIDES/PCBS

Analysis Method: EPA 608

Batch: T130451

Aroclor-1016 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1221 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1232 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1242 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1248 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1254 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1260 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Surrogates:

%Tetrachloro-m-xylene 76 1 12/12/22 12/13/22kbc ahr18-105 N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 21 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-04

Sample ID: B55 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8260D

Batch: T130522

Dichlorodifluoromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Vinyl chloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Trichlorofluoromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diethyl ether ug/L<10 10 1 12/13/22 12/13/22ats nw N

Tert-butyl alcohol ug/L<50 50 1 12/13/22 12/13/22ats nw N

1,1-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Acetone ug/L<50 50 1 12/13/22 12/13/22ats nw

Iodomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Carbon disulfide ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methyl-tert-butyl ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methylene chloride ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Acrylonitrile ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw trans-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diisopropyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

2-Butanone ug/L<25 25 1 12/13/22 12/13/22ats nw cis-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Ethyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Bromochloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrahydrofuran ug/L<90 90 1 12/13/22 12/13/22ats nw N

Chloroform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Carbon tetrachloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Amyl Methyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Cyclohexane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Trichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 22 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-04

Sample ID: B55 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Dibromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Bromodichloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw cis-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

4-Methyl-2-pentanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Toluene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,2-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrachloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

2-Hexanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Dibromochloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2-Dibromoethane (EDB) ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Chlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Ethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw m,p-Xylene ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw N o-Xylene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw N

Xylenes, total ug/L<3.0 3.0 1 12/13/22 12/13/22ats nw

Styrene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromoform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Isopropylbenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,1,2,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,4-Dichloro-2-butene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Propylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,3,5-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,4-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw sec-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw p-Isopropyltoluene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,3-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,4-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 23 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-04

Sample ID: B55 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 10:30Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

1,2,3-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dibromo-3-chloropropane ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw

Hexachloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2,4-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Naphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

2-Methylnaphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Surrogates:

%1,2-Dichloroethane-d4 97 1 12/13/22 12/13/22ats nw68-133

%Toluene-d8 105 1 12/13/22 12/13/22ats nw75-120

%4-Bromofluorobenzene 107 1 12/13/22 12/13/22ats nw69-119

%1,2-Dichlorobenzene-d4 101 1 12/13/22 12/13/22ats nw72-127

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 24 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-05

Sample ID: B2 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 11:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7470A

Batch: T130483

Mercury mg/L<0.00020 0.00020 1 12/13/22 12/13/22bjv jma N

METALS, TOTAL

Analysis Method: EPA 1631E

Batch: T130262

Mercury ng/L5.6 0.50 1 12/13/22 12/16/22ckd ckd N

Analysis Method: EPA 6020B

Batch: T130482

Arsenic mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs

Barium mg/L<0.10 0.10 1 12/13/22 12/13/22bjv acs

Cadmium mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs N

Chromium mg/L<0.010 0.010 1 12/13/22 12/13/22bjv acs

Copper mg/L0.031 0.0040 1 12/16/22 12/16/22gmr acs

Lead mg/L0.0055 0.0030 1 12/13/22 12/13/22bjv acs

Selenium mg/L<0.0050 0.0050 1 12/13/22 12/13/22bjv acs N

Silver mg/L<0.0010 0.0010 1 12/13/22 12/13/22bjv acs

Zinc mg/L0.097 0.050 1 12/13/22 12/13/22bjv acs

WET CHEMISTRY

Analysis Method: EPA 1664B

Batch: T130450

Oil & Grease (HEM) mg/L<5.0 5.0 1.010101 12/12/22 12/12/22kbc kbc

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T130452

Naphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

2-Methylnaphthalene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthylene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Acenaphthene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 25 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-05

Sample ID: B2 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 11:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Fluorene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Phenanthrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Anthracene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Pyrene ug/L<5.0 5.0 1 12/12/22 12/12/22kbc avl

Benzo (a) anthracene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Chrysene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (b) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (k) fluoranthene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Benzo (a) pyrene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Indeno (1,2,3-cd) pyrene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Dibenz (a,h) anthracene ug/L<2.0 2.0 1 12/12/22 12/12/22kbc avl

Benzo (g,h,i) perylene ug/L<1.0 1.0 1 12/12/22 12/12/22kbc avl

Surrogates:

%Nitrobenzene-d5 48 1 12/12/22 12/12/22kbc avl36-103

%2-Fluorobiphenyl 50 1 12/12/22 12/12/22kbc avl36-119

%Terphenyl-d14 46 1 12/12/22 12/12/22kbc avl37-109

PESTICIDES/PCBS

Analysis Method: EPA 608

Batch: T130451

Aroclor-1016 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1221 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1232 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1242 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1248 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1254 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Aroclor-1260 ug/L<0.10 0.10 1 12/12/22 12/13/22kbc ahr N

Surrogates:

%Tetrachloro-m-xylene 76 1 12/12/22 12/13/22kbc ahr18-105 N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 26 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-05

Sample ID: B2 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 11:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8260D

Batch: T130522

Dichlorodifluoromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Vinyl chloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Chloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Trichlorofluoromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diethyl ether ug/L<10 10 1 12/13/22 12/13/22ats nw N

Tert-butyl alcohol ug/L<50 50 1 12/13/22 12/13/22ats nw N

1,1-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Acetone ug/L<50 50 1 12/13/22 12/13/22ats nw

Iodomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Carbon disulfide ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methyl-tert-butyl ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Methylene chloride ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Acrylonitrile ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw trans-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Diisopropyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

2-Butanone ug/L<25 25 1 12/13/22 12/13/22ats nw cis-1,2-Dichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Ethyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Bromochloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrahydrofuran ug/L<90 90 1 12/13/22 12/13/22ats nw N

Chloroform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Carbon tetrachloride ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Amyl Methyl Ether ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2-Dichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Cyclohexane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Trichloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 27 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-05

Sample ID: B2 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 11:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

Dibromomethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Bromodichloromethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw cis-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

4-Methyl-2-pentanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Toluene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,3-Dichloropropene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,2-Trichloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Tetrachloroethene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

2-Hexanone ug/L<50 50 1 12/13/22 12/13/22ats nw

Dibromochloromethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2-Dibromoethane (EDB) ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Chlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,1,1,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Ethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw m,p-Xylene ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw N o-Xylene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw N

Xylenes, total ug/L<3.0 3.0 1 12/13/22 12/13/22ats nw

Styrene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromoform ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Isopropylbenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,1,2,2-Tetrachloroethane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichloropropane ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw trans-1,4-Dichloro-2-butene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

Bromobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Propylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,3,5-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw t-Butyl Benzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2,4-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw sec-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw p-Isopropyltoluene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,3-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,4-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw n-Butylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 28 of 45Report ID: 22L0412 TRACE_QC FINAL 12 16 22 1425

Client Project ID:

22L0412

221312 Caro Demo

Trace ID: 22L0412-05

Sample ID: B2 Date Received: 12/09/22 13:17

Date Collected: 12/08/22 11:00Matrix: Wastewater

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

VOLATILE ORGANIC COMPOUNDS BY GC-MS

1,2,3-Trimethylbenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dichlorobenzene ug/L<1.0 1.0 1 12/13/22 12/13/22ats nw

1,2-Dibromo-3-chloropropane ug/L<2.0 2.0 1 12/13/22 12/13/22ats nw

Hexachloroethane ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

1,2,4-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

Naphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

1,2,3-Trichlorobenzene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw

2-Methylnaphthalene ug/L<5.0 5.0 1 12/13/22 12/13/22ats nw N

Su…

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