NCG550968_Response_20221129

ENCO Laboratories
Accurate, Timely. Responsive. Innovative.
102-A Woodwinds Industrial Court
Cary NC, 27511
Phone: [phone] FAX: [phone]
Tuesday, October 25, 2022
McFarland Septic (WA021)
Attn: Waylon McFarland
6801 Mt. Hermon Church Road
Durham, NC 27705
RE: Laboratory Results for
Project Number: 5630 WILLOW DR., Project Name/Desc: Wastewater
ENCO Workorder(s): CF15524,CF15790
Dear Waylon McFarland,
Enclosed is a copy of your laboratory report for test samples received by our laboratory
between Tuesday, October 11, 2022 and Monday, October 17, 2022.
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,
Stephanie Franz For Shahla Vakili
Project Manager
Enclosure(s)
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Page 1 of 9

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SAMPLE SUMMARY/LABORATORY CHRONICLE
1
Client ID: Effluent -5630 WILLOW DR.
Lab ID: CF15524-01
Sampled: 10/11/22 09:45 Received: 10/11/22 14:27
Parameter
SM 2540D-2015
SM 5210 B-2011
Preparation
NO PREP
NO PREP
Hold Date/Time(s)
10/18/22
10/13/22 09:45
Prep Date/Time(s)
10/18/22 14:30
10/12/22 08:16
Analysis Date/Time(s)
10/18/22 14:30
10/12/22 08:16
Client ID: Effluent - 5630 WILLOW DR.
Lab ID: CF15790-01
Sampled: 10/17/22 13:20 Received: 10/17/22 14:25
Parameter
Colilert 18
Preparation
NO PREP
Hold Date/Time(s)
Prep Date/Time(s)
10/17/22 21:15 10/18/22 12:45 10/17/22 14:41
Analysis Date/Time(s)
10/18/22 10:43
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Page 2 of 9

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SAMPLE DETECTION SUMMARY
1
Client ID: Effluent -5630 WILLOW DR.
Lab ID: CF15524-01
Anal e
Biochemical Oxygen Demand
Total Suspended Solids
Results
120
80
Flaq
MDL
2.0
17
POL
2.0
17
Units
mg/L
mg/L
Method
SM 5210 B-2011
SM 2540D-2015
Notes
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Page 3 of 9

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ANALYTICAL RESULTS
1
Description: Effluent -5630 WILLOW DR.
Matrix: Waste Water
Project: Wastewater
Lab Sample ID:CF15524-01
Sampled:10/11/22 09:45
Sampled By:ADAM MONEYPENNY
Received: 10/11/22 14:27
Work Order: CF15524
Classical Chemistry Parameters
^ - ENCO Cary certified analyte [NC 591]
Analyte [CAS Number] Results Flaq
Biochemical Oxygen Demand^ 120
Total Suspended Solids^ 80
Units
mg/L
mg/L
DF MDL P0L Batch Method Analvzed
1 2.0 2.0 2312002 SM 5210 B-2011 10/12/22 08:16
6.67 17 17 2318010 SM 2540D-2015 10/18/22 14:30
Notes
JOC
JOC
Description: Effluent - 5630 WILLOW DR.
Matrix: Waste Water
Project: Wastewater
Lab Sample ID:CF15790-01
Sampled:10/17/22 13:20
Sampled By:ADAM MONEYPENNY
Received: 10/17/22 14:25
Work Order: CF15790
Microbiological Parameters
1
^ - ENCO Cary certified analyte [NC 591]
Analyte 1CAS Number]
Coliform, Fecal^
Results Flaq Units DF MDL P0L Batch Method Analvzed 8Y Notes
< 1.0 MPN/100 1 1.0 2J18016 Colilert 18 10/18/22 10:43 CB
mL
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Page 4 of 9

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QUALITY CONTROL DATA
1
Classical Chemistry Parameters - Quality Control
Batch 2712002 - NO PREP
Blank (2312002-BLK1)
Prepared & Analyzed: 10/12/2022 08:16
Analvte
Biochemical Oxygen Demand
Result Flag
2.0 U
Spike
Q Units Level
2.0
mg/L
Source
Result
%REC
%REC Limits
RPD
RPD Limit
Notes
LCS(2312002-BS1)
Prepared & Analyzed: 10/12/2022 08:16
Analvte
Biochemical Oxygen Demand
Result Flaq POL Units
190 2.0 mg/L
Spike Source %REC
Level Result %REC Limits
198
98
85-115
RPD
RPD Limit
Notes
Duplicate (2312002-DUP1)
Prepared & Analyzed: 10/12/2022 08:16
Y
Source: CF11097-01
Analvte
Biochemical Oxygen Demand
Batch 2118010 - NO PREP
Spike Source %REC RPD
Result Flag POL Units Level Result %REC Limits RPD Limit Notes
3.4 2.0 mg/L 3.3 2 30
Blank (2318010-BLK1)
Prepared & Analyzed: 10/18/2022 14:30
Analvte
Total Suspended Solids
Result Flag
2.5 U
Spike Source %REC
Q Units Level Result %REC Limits
2.5
mg/L
RPD
RPD Limit Notes
LCS(2318010-BS1)
Prepared & Analyzed: 10/18/2022 14:30
Analvte
Total Suspended Solids
Result Flag POL Units
110 2.5 mg/L
Spike Source %REC
Level Result %REC Limits
100
108
80-120
RPD
RPD Limit
Notes
Duplicate (2318010-DUP1)
Prepared & Analyzed: 10/18/2022 14:30
Source: CF04707-01
Analvte
Total Suspended Solids
Spike
Result Flag POL Units Level
45 10 mg/L
Source
Result
49
%REC RPD
%REC Limits RPD Limit
20
9
Notes
Duplicate (2318010-DUP2)
Prepared & Analyzed: 10/18/2022 14:30
Source: CF13550-01
Analvte
Total Suspended Solids
Spike
Result Flag PQL Units Level
19 5.0 mg/L
Source
Result
22
%REC
%REC Limits RPD
14
RPD
Limit
20
Notes
Microbiological Parameters - Quality Control
1
Batch 2718016 - NO PREP
Duplicate (2318016-DUP1)
Prepared: 10/17/2022 14:04 Analyzed: 10/18/2022 10:43
Source: CF13428-01
Analvte
Coliform, Fecal
Spike Source %REC RPD
Result Flag Q Units Level Result %REC Limits RPD Limit Notes
91 1.0 MPN/100 mL 79 13 25
FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full.
Page 5 of 9

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FLAGS/NOTES AND DEFINITIONS
1
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.
Page 6 of 9

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CHAIN -OF -CUSTODY RECORD
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Sample Preservation Verification
ENCO Cary
Work Order:
Client:
Logged In:
C F 15524
McFarland Septic (WA021)
11-Oct-22 14:32
Preservation Check Performed By:
Project: Wastewater
Project* 5630 WILLOW DR.
Logged By: Samantha L Hyatt k J f +
Date/Time: tC)t��j� c1i ` ~t�4 j
C F 15524-01
Cont
Type
Pres (pH)
Requirement
Q
pH Checked /
1 Controi
pH Adjusted Date/Time
Adjusted
Reagent Used/Comments
C
250mLP+H2SO4
<2
Y N / NA
Y 1 /)NA
1
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Reagent Name ID
pH Strip ID:
ad-,Pra.0q0
3
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Reagent Name
ID Reagent Name
5
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ID
C:IELMNTIPrintlwko_PreservationCheck.rpt
Page 8 of 9

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Page 9 of 9