NCG160234_2020 DMR_20201005

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TNI
ENCO Laboratories
Accurate. Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Monday, September 28, 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: Sharpe Plant 4
ENCO Workorder(s): CD12473
Dear Parker Alvis,
Enclosed is a copy of your laboratory report for test samples received by our laboratory on
Thursday, September 17, 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,
A40
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 full. I Page 1 of 7

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SAMPLE SUMMARY/LABORATORY CHRONICLE
Client ID: Sharpe Plant 4 Lab ID: CD12473-01 Sampled: 09/17/20 11:06 Received: 09/17/20 14:50
Parameter Preparation Hold Date/Time(s)
SM 254OD-2011 NO PREP 09/24/20
Prep Date/Time(s) Analysis Date/Time(s)
09/24/20 11:58 09/24/20 11:58
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

CS.�9
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SAMPLE DETECTION SUMMARY
Client ID: Sharpe Plant 4 Lab ID: CD12473-01
Analvte Results Flag MDL 2 Units Method Notes
Total Suspended Solids
3.1 3.1 mg/L SM 2540D-2011
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ANALYTICAL RESULTS
Description: Sharpe Plant 4 Lab Sample ID:CD12473-01 Received: 09/17/20 14:50
Matrix: Water Sampled:09/17/20 11:06 Work Order: CD12473
Project: Sharpe Plant 4 Sampled By: Parker Alvis
Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
Analyte rCAS Numberl Results Flag Units DF MDL I'2 Batch Method Analyzed By Notes
Total Suspended Solids^ 11 mg/1- 1.25 3.1 3.1 0124026 SM 254OD-2011 09/24/20 11:58 DMJ
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 7

QUALITY CONTROL DATA
Classical Chemistry Parameters - Quality Control
Batch 0124026 - NO PREP
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Blank (0I24026-BLKI) Prepared & Analyzed: 09/24/2020 11:58
Spike Source a/oREC RPD
Anala Result Flag Q Units Level Result %REC Limits RPD Limit Notes
Total Suspended Solids 2.5 U 2.5 mg/L
LCS (0I24026-BSI) Prepared & Analyzed: 09/24/2020 11:58
Spike Source %REC
RPD
Analvte
Result
Flag
Q
Units
Level Result %REC Limits
RPD
Limit Notes
Total Suspended Solids
100
2.5
mg/L
100 100 80-120
Duplicate (0I24026-DUPI)
Prepared & Analyzed: 09/24/2020 11:58
Source: CD12070-01
Spike Source %REC
RPD
Analvte
Result
Flag
Q
Units
Level Result %REC Limits
RPD
Limit Notes
Total Suspended Solids
190
50
mg/L
200
5
20
Duplicate (0I24026-DUP2)
Prepared & Analyzed: 09/24/2020 11:58
Source: CD09980-05
Spike Source %REC
RPD
Analvte
Result
Flag
2
Units
Level Result %REC Limits
RPD
Limit Notes
Total Suspended Solids
46
25
mg/L
46
0
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.
J 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.
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 of 7

Sample Chain of Custody Form
Acct#: TH005 Prelog #: CD12473
Client El Group, Inc. (TH005) Project#/Reference: Sharpe Plant 4
Contact: Parker Alvis Required TAT: 10
Snip To: 2101 Gateway Center Blvd., Suite 20
Morrisville, NC 27560
Report To: 2101 Gateway Center Blvd., Suite 20
Morrisville, NC 27560
ENCO Contact: Bill Scott
102-A Woodwinds Industrial Court
Cary, NC 27511
Morrisville, NC 27560
i_abNumber Date/Time Sampled Sample ID Analyses/Containers
CD12473-01 M.7kr /�Q(p �y �oc� Analyses: TSS SM2540D
Containers: 1 - 1 LP
Sampled By., Temp: linquished By.- Da ,-n e:
I ao ]�a 911
Condition: Acceptable _Unacceptable Received By, Date/Time
Notes
Containers in this sample kit may contain chemical preservatives as required by the EPA procedures, Information concerning the materials can be found below 00 NOT rinse containers prior to
usel
When filling preserved containers, use caution not to inhale vapors that may be caused In the Chemical reaction between the sample and the preservatives. Collect samples in a well -ventilated area
or take appropriate precautions to avoid exposure to these tomes. Sea 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 transit until receipt at the
laboratory_
A temperature blank has been included to measure the ambient temperature of the cooler upon receipt at the lab. Please do not remove this container from the cooler. but pack along with the
same#es in a similar manner. This bottle contains delontzed water only.
The information below are PRECAUTIONARY STATEMENTS ONLYt AV potential hazards posed by these materials have not been addressed. For additional information or assistance, please
contact your organization's safety professional
Cautions & Abbreviations
HCI Hydrochloric Acid -STRONG ACI01 Avoid skin and eye contact. If contact is made, flush affected areas immediately with water
HNO3 ,Nitric Acid -STRONG ACID' STRONG OXIDIZERI Avoid skin and eye contact, If contact Is made, flush affected areas immediately with water
H3PO4'. Phosphoric Acid -STRONG ACID! Avoid skin and eye contact. If contact is made, flush affected areas immediately with water.
H2SO4 Sulfuric Acid -STRONG ACID! Avoid skin and aye contact- If contact is made, flush affected areas immediately with water,
Asc Acid : Ascorbic Acid -Avoid skin and eye contact. If contact is made, flush affected areas immediately with water
ZnAc , Zinc Acetate -Avoid skin and eye contact If contact is made, flush affected areas immediately with water.
NaHSO4 : Sodium Thiasulfate - Avoid skin and eye contact. If contact is made. Flush affected areas immediately with water Page 7 Of 7
NaOH Sodium Hydroxide -STRONG CAUSTIC Avoid skin and eye contact If contact is made, flush affected areas immediately with water
McOH Methanol - Avoid skin and eye contact If contact is made, flush affected areas immediately with water