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ENCO Laboratorios
"Acmmte. Timely, sra,
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, October 6, 2020
EI Group, Inc. (TH005)
Attn: Parker Alvis
2101 Gateway Center Blvd., Suite 200
Morrisville, NC 27560
RE: Laboratory Results for
Project Number: [none], Project Name/Desc: APAC Plant 8
ENCO Workorder(s): CD12468
Dear Parker Alvis,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Tuesday, September 29, 2020.
Unless otherwise noted in an attached project narrative, all samples were received in
acceptable condition and processed in accordance with the referenced methods/procedures.
Results for these procedures apply only to the samples as submitted.
The analytical results contained in this report are in compliance with NELAC standards, except
as noted in the project narrative if applicable. This report shall not be reproduced except in
full, without the written approval of the Laboratory.
This report contains only those analyses performed by Environmental Conservation
Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from
outside organizations will be reported under separate cover.
If you have any questions or require further information, please do not hesitate to contact me.
Sincerely,
•
Bill Scott
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in tun. IPage 1 oF777

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SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: #1 Lab ID: CD12468-01 Sampled: 09/24/20 13:00 Received: 09/29/20 13:15
Parameter Preparation Hold Date/Timels) Prep Date/Timels) Analysis Date/Time(s)
SM 254OD-2011 NO PREP 10/01/20
10/01/20 15:04 10/01/20 15:04
Client ID: #I Lab ID: CD12468-02 Sampled: 09/24/20 13.00 Received: 09/29/20 13:15
Parameter Preparation Hold Date/Timels) Prep DatelTime(s) Analysis Date/Timels)
SM 254OD-2011 NO PREP 10/01/20
10/01/20 15:04 10/01/20 15:04
Client ID: #3 Lab ID: CD12468-03 Sampled: 09/24/20 13:00 Received: 09/29/20 13:15
Parameter Preparation Hold Date/Timels) Prep Date/Timels) Analysis Date/Time(s)
SM 254OD-2011 NO PREP 10/01/20
10/01/20 15:04 10/01/20 15:04
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 Of 7

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I SAMPLE DETECTION SUMMARY I
No positive results detected.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 3 Of 7

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ANALYTICAL RESULTS
Description: #1 Lab Sample ID:CD12468-01 Received: 09/29/20 13:15
Matrix: Water Sampled:09/24/20 13:00 Work Order: CD12468
Project: APAC Plant 8 Sampled By:Chris M.
Passical Chemistry Parameters
^ - ENCO Cary certified ana/yte [NC 5911
Analyte rCAS Numberl Results
Ebg Units RE Hu E91. Bauch
Method Analyzed ¢y Nottes
Total Suspended Solids^ ND
mg/L 1 2.5 2.5 0301007
SM 254OD-2011 10/01/20 15:04 DMJ
Description: #2
Lab Sample ID: CD12468-02
Received: 09/29/20 13:15
Matrix: Water
Sampled.09/24/20 13:00
Work Order: CD12468
Project: APAC Plant 8
Sampled By: Chris M.
Classical Chemistry Parameters
ENCO Cary certified anatyte [NC 591]
Analyte rCAS Numberl Results
Elm Units QF MQL EQL Batch
Method Anahrzed fy Notes
Total Suspended Solids^ ND
mg/L 1 2.5 2.5 0301007
SM 254OD-2011 10/01/20 15:04 DMJ
Description: #3
Lab Sample ID: CD12468-03
Received: 09/29/20 13:15
Matrix: Water
Sampled:09/24/20 13:00
Work Order: CD12468
Project: APAC Plant 8
Sampled By:Chris M.
Classical Chemistry Parameters
^ - ENCO Cary certified a-lyte [NC 591]
Analyte rCAS Numberl Results € n Units RE MOIL EQL Batch 1effiod Analyzed By Notes
Total Suspended Solids^ ND mg/L 1 2.5 2.5 0301007 SM 25QD-2011 10/01/20 15:04 DMJ
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 4 Of 7

10;��
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QUALITY CONTROL DATA I
Parameters - Quality Control
Betdb 0TOI007 - NO PREP
Blank (0301007-BLK1) Prepared &Analyzed:10/0112020 15:04
Malvte Spike Source %REC RPD
u Big 1� Units Level Result %REC Limits RPD Limit Notes
Total Suspended Solids 2.5 U 2.5 mg/L
LCS (0701007-BS1) Prepared & Analyzed: 10/01/2020 15:04
Spike Source %REC
RPD
Analvte
Result Flea ffiL
Units
Level Result %REC Limits
RPD
Limit Notes
Total Suspended Solids
98 2.5
mg/L
100 98 80-120
Duplicate (0701007-DUPl)
Prepared & Analyzed: 10/01/2020 15:04
Source: CD12462-01
Spike Source %REC
RPD
And
Resull Flag EQL
M"ft
Level Result %REC Limits
RPD
LM Notes
Total Suspended Solids
16 12
mg/L
14
10
20
Duplicate (0701007-DUP2)
Prepared & Analyzed: 10/01/2020 15:04
Source: CD10593-01
SpikeSource %REC
RPD
ilnalvte
Result Flan PQI
Units
Level %REC /oREC Limits
RPD
Limit Notes
Total Suspended Solids
96 50
mg/L
80
18
20
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 7

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FLAGS/NOTES AND DEFINITIONS
B The analyte was detected in the associated method blank.
D The sample was analyzed at dilution.
7 The reported value is between the laboratory method detection limit (MDL) and the laboratory method
reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable.
U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation
data and moisture content, where applicable.
E The concentration indicated for this analyte is an estimated value above the calibration range of the
instrument. This value is considered an estimate.
MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is
based on the low point of the calibration curve, when applicable, sample preparation factor, dilution
factor, and, in the case of soil samples, moisture content.
PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.
N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater
confidence) to make a "tentative identification".
P Greater than 25% concentration difference was observed between the primary and secondary GC column.
The lower concentration is reported.
[CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.
FIB- This report relates only to the sample as received by the laboratory, and may only be reproduced in run. Page 6 Of7--�

Sample Chain of Custody Form
Acct#: TH005 Prelog #: CD12468 ---------
Client El Group, Inc. (TH005) Project#/Reference: APAC Plant 8
Contact: Parker Alvis Required TAT: 10
Ship To: 2101 Gateway Center Blvd., Suite 20
Morrisville, NC 27560
Report To: 2101 Gateway Center Blvd„ Suite 20
Morrisville, NC 27560
utttef t ime Z:rarnpled Sample ID
CD11",
12468-01/ /.`Gr
CD12468-02
CD12468-03
Sampled By.
Ctandtfon: _Acceptable _____Unacceptable
ENCQ Contact: Bill Scott
102-A Woodwinds Industrial Court
Cary, NC 27511
Morrisville. NC 27560
Analyses/Containers
Analyses: TSS SM2540D 7
Containers: 1 - 1 LP
Analyses; TSS SM2540D
Containers: 1 - 1 LP
Analyses: TSS SM2540D
Containers: 1 - 1 LP `"-
0
-
Temp. Retlnqu-shed 1 : DatelTinre:
Recerued By� line.•
Notes:
Contairtars in this sample kit may contain chemical preservatives as required by the EPA procedures Ictformation c4nCerhin use the materials can be found below: OO NOT rinse containers pt;or, to
when filling preserved containers, use caution not to inhale vapors that may be caused to the chemical reaction between the sample and the preservatives Collect samples ins wail,&ntr#atec aver
or take appropriate precautions to avoid exposure to these fumes. See cautions below pertaining to the handling of these materials
It is the shipper's responsibility to ensure that the samples are packed in such a manner to prevent breakage and that any required temperature is maintained during kit@ it unfit race plat the
laboratory,
A temperature blank has been included to measure the ambient temperature of fnis cooler upon receipt at the lab Please do not remove this container from the coolerbut park along with tr e
samples in a similar manner. This bottle contains deionized water only.
The information below are PRECAUTIONARY STATEMENTS ONLY! AI, potential hazards posed by these materials have not been addressed For additional information or assistance piessa
contact your organization's safety professional.
Cautions & Abbreviations
NCI Hydrochloric Acid - STRONG ACID' Avoid skin and eye contact it contact is made: flush affected areas immediately with water
HNO3 .Nitric Acid - STRONG ACID' STRONG OXIDIZERI Avoid skin and eye contact. if contact :s made, flush affected areas immediataty with water
H3PO4 Phosphoric Acid - STRONG ACID, Avoid Skin and eye contactif contact is made, flush affected areas immediately with water
H2SO4 Sulfuric Acid -STRONG ACID' Avoid skin and eye contactif contact is made, flush affected areas immediately with water
Asc Acid, Ascorbic Acid - Avoid skin and eye contact tf;=tactis
male, flush affected areas immediately wvatl� water
ZnAc Zinc Acetate - Avoid skin and eye contact if contact is made flush affected areas immediately with water
NaHSO4 Sodium Thmsuifate - Avoid skin and eye contact tf contact is made flush affected areas imrriare alely with water.
NaOH, Sodium Hydroxide -STRONG CAUSTIC' Avoid skin and aye contact, if contact is made flush affected areas immediately with water. Page 7 of 7
MaOH Methanol . Avoid skin and eye contact If contact is made, ;lush affected areas immediately with water.