NC0004308_More Information (Received - outfall 019)_20240226

February 26, 2024
Doug Dowden
Division of Water Resources
Water Quality Permitting Section — NPDES
1611 Mail Service Center
Raleigh, NC 27699-1611
RE: Additional Information, NPDES Application NC0004308
Badin Business Park, LLC
Dear Mr. Dowden:
Badin Business Park, LLC is submitting the attached additional information to supplement the
April 25, 2022, NPDES permit (NC0004308) renewal application (Application). As noted in
Section 2.0 of the Application, Outfall 019 did not discharge during the permit renewal sampling
and required samples could not be collected. Outfall 019 discharged in January 2024 and water
quality samples were collected. Badin has included the following items for your inclusion in the
NPDES permit renewal:
• Outfall 019 EPA Form 2E
• Outfall 019 EPA Form 2F
• Outfall 019 analytical laboratory report
If you have any questions or need additional information, please do not hesitate to contact me
at [e-mail] or 412.315.2780.
1 certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true,
accurate, and complete. 1 am aware that there are significant penalties for submitting false
information, including the possibility of fines and imprisonment for knowing violations.
Sincerely,
J
Robyn L. Gross
Global Director, Alcoa Transformation
Badin Business Park LLC
cc: Jason Mibroda, Alcoa Corporation

Attachment 1
Outfa11019 EPA Form 2E

NCDO03162542
NC0004308
Badin Business Park, LLC
07/31/2026
U.S. Environmental Protection Agency
FORM
Application for NPDES Permit to Discharge Wastewater
EPA
NPDES
MANUFACTURING, COMMERCIAL, MINING, AND SILVICULTURAL FACILITIES WHICH
DISCHARGE ONLY NONPROCESS WASTEWATER
SECTIONOUTFALL
LOCATIONi
o
Outfall
Receiving Water Name
Latitude
Longitude
Number
0
019
Badin Lake
35' 24' 46.88" N
80' 6' 16.53" N
R
w
O
FSECTION
N
L �
✓
V 0
y
G
SECTION1
y
a>
Stormwater
T
ca
cv
✓
Cooling Water Additives Composition of Additives
SECTIONi
✓
H
.y
Number of
Maximum Daily
Average Daily
Source
Parameter or Pollutant
Analyses
Discharge
Discharge
U
R
Mass
Conc.
Mass
Conc.
2
0.19 #/day
9.9 mg/L
0.12 #/da
6.5 mg/1
NA
3
3
0.43 #/day
13 mg/L
0.26 #/da
9.6 mg/1
NA
w
2
<1.2 #/day
<4.9 mg/L
<0.6 #/da
<3.8 mg,
NA
1
<0.6 #/day
<2.4 mg/L
NA
219
0.03 MGD
NA
4
6.5-7.7s.u.
NA
2
11.6 C
NA
0
NA

NCDO03162542
NC0004308
Badin Business Park, LLC
07/31/2026
Number of
Maximum Daily
Average Daily
Source
Parameter or Pollutant
Analyses
Discharge
Discharge
Mass
Conc.
Mass
Conc.
E. coli
a
0
U
—
tA
V
✓
.y
Number of
Maximum Daily
Average Daily
Source
R
Parameter or Pollutant
Analyses
Discharge
Discharge
L)
Mass
Conc.
Mass
Conc.
d
w
Number of
Maximum Daily
Average Daily
Source
Parameter or Pollutant
Analyses
Discharge
Discharge
Mass Conc.
Mass Conc.
SECTION
5. FLOW
i
r
0
—
U-
E
—
2
T
No treatment system present.
c
m
E
iv
a�
L

NCDO03162542 NC0004308 Badin Business Park, LLC
07/31/2026
SECTIONOTHER
INFORMATION1
(optional item)
c
Semi-annual sampling for aluminum, cyanide, and fluoride is required for this outfall under the current permit. The
maximum daily concentrations are 5.7 mg/L for aluminum, 0 ug/L for cyanide, and 1.8 mg/L for fluoride. The average
E
daily concentrations are 2.8 mg/L for aluminum, 0 ug/L for cyanide, and 0.9 mg/L for fluoride. These results were
c
calculated from data collected since the permit modification (July 2019) and includes a total of 3 data points for all
c
parameters.
L
m
O
SECTION
1 CERTIFICATION 1 1
Column 1
Column 2
a�
E
a�
✓
.r
U)
o
.16
✓
Cl
w
✓
N
U
✓
c
y—
Certification Statement
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for kno ng violations.
Robyn Gross
Global Director, Alcoa Transformation
2/26/2024

Attachment 2
Outfa11019 EPA Form 2F

EPA Identification Number NPDES Permit Number Facility Name Outfall Number OMB No. 2040-0004
NCDO03162542 NC0004308 Badin Business Park, LLC 019 Expires 07/31/2026
TABLE A. CONVENTIONAL AND NON• • I
You must provide the results of at least one anal sis for every pollutant in this table. Complete one table for each outfall. See instructions for additional details and requirements.
Maximum Daily Discharge
Average Daily Discharge
Source of
(specify units)
(specify units)
Number of Storm
Information
Grab Sample Taken
w ege
FloWihtd
Grab Sample Taken
Flo w Weighted
Pollutant or Parameter
Events Sampled
(new source/new
During First
Composite
During First
Composite
dischargers only; use
30 Minutes
30 Minutes
codes in instructions)
1.
Oil and grease
<4.9 mg/L
<3.8 mg/L
2
NA
2.
Biochemical oxygen demand (BOD5)
9.9 mg/L
NA
6.5 mg/L
NA
2
NA
3.
Chemical oxygen demand (COD)
24 mg/L
NA
24 mg/L
NA
1
NA
4.
Total suspended solids (TSS)
13 mg/L
NA
9.6 mg/L
NA
3
NA
5.
Total phosphorus
<20 mg/L
NA
<20 mg/L
NA
1
NA
6.
Total Kjeldahl nitrogen (TKN)
0.54 mg/L
NA
0.54 mg/L
NA
1
NA
7.
Total nitrogen (as N)
0.77 mg/L
NA
0.77 mg/L
NA
1
NA
pH (minimum)
6.5 s.u.
6.5 s.u.
4
NA
8.
pH (maximum)
7.7 s.u.
7.7 s.u.
4
NA
1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I, Subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-21F Page 7

This page intentionally left blank.

EPA Identification Number
NCDO03162542
NPDES Permit Number
NC0004308
Facility Name Outfall Number
Badin Business Park, LLC 019
OMB No. 2040-0004
Expires 07/31/2026
TABLE B. CERTAIN CONVENTIONAL AND NON CONVENTIONAL'• 1 CIFIR 122.26(C)(1)(1)(E)(4)I 40
List each pollutant that is limited in an effluent limitation guideline (ELG) that the facility is subject to or any pollutant listed in the facility's NPDES permit for its process wastewater (if the
facility is operating under an existing NPDES permit). Complete one table for each outfall. See the instructions for additional details and requirements.
Pollutant and CAS Number
(if available)
Maximum Daily Discharge
(specify units)
Average Daily Discharge
(specify units)
Number of Storm
Events Sampled
Source of
Information
(new source/new
dischargers only; use
codes in instructions)
Grab Sample Taken
During First
30 Minutes
Flow -Weighted
Composite
Grab Sample Taken
During First
30 Minutes
Flow -Weighted
Composite
Fluoride
1.8 mg/L
NA
0.9 mg/L
NA
3
NA
Cyanide, Total
<6 ug/L
NA
<5.7 ug/L
NA
3
NA
Aluminum, Total
5.7 mg/L
NA
2.8 mg/L
NA
3
NA
1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I, Subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-21F Page 9

This page intentionally left blank.

EPA Identification Number NPDES Permit Number
NCDO03162542 NC0004308
Facility Name
Badin Business Park, LLC
Outfall Number
019
OMB No. 2040-0004
Expires 07/31/2026
TABLE C. TOXIC POLLUTANTS, CERTAIN HAZARDOUS SUBSTANCES, AND ASBESTOS (40 CFR 122.26(C)(1)(1)(E)(4) AND 40 CFR 122.21(G)(7)(VI)(B) AND (VII))1
List each pollutant shown in Exhibits 2F-2, 2F-3, and 2F-4 that you know or have reason to believe is present. Complete one table for each outfall. See the instructions for additional
details and requirements.
Pollutant and CAS Number
(if available)
Maximum Daily Discharge
s ecif units
Average Daily Discharge
s ecif units
Number of Storm
Events Sampled
Source of
Information
(new source/new
dischargers only; use
codes in instructions)
Grab Sample Taken
During First
30 Minutes
Flow -Weighted
Composite
Grab Sample Taken
During First
30 Minutes
Flow -Weighted
Comosite
p
1 Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I, Subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-21F Page 11

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility name Outfall Number OMB No. 2040-0004
NCDO03162542 NCO0043O8 Badin Business Park, LLC 019 Expires 07/31/2026
EPA Form 3510-2F Page 13

Attachment 3
Outfall 019 Analytical Laboratory Report

•
% eurofins
Environment Testing
I
ANALYTICAL REPORT C
PREPARED FOR
Attn: Melissa Vaught
FTN Associates, Ltd.
3 Innwood Circle C
Suite 220
Little Rock, Arkansas 72211
Generated 1/30/2024 2:48:41 PM
JOB DESCRIPTION
Badin Business Park - Outfall 019
JOB NUMBER
410-157788-1

This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the
samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this
page.
Analytical test results meet all requirements of the associated regulatory program (i.e., NELAC (TNI), DoD, and ISO 17025)
unless otherwise noted under the individual analysis.
Generated
A&WV- 1/30/2024 2:48:41 PM
Authorized for release by
Kelly Bauer, Project Manager
Kelly. Bauer(o-).et.eurofinsus.com
[phone]
Eurofins Lancaster Laboratories is a laboratory within Eurofins Lancaster Laboratories Environment Testing, LLC, a company within Eurofins Environment
Testing Group of Companies
Page 2 of 19 1 /30/2024

Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD, and ISO 17025)
unless otherwise noted under the individual analysis. Data qualifiers are applied to note exceptions. Noncompliant quality
control (QC) is further explained in narrative comments.
• QC results that exceed the upper limits and are associated with non -detect samples are qualified but further narration is not
required since the bias is high and does not change a non -detect result. Further narration is also not required with QC blank
detection when the associated sample concentration is non -detect or more than ten times the level in the blank.
Matrix QC may not be reported if insufficient sample or site -specific QC samples were not submitted. In these situations, to
demonstrate precision and accuracy at a batch level, a LCS/LCSD is performed, unless otherwise specified in the method.
Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed
unless attributed to a dilution or otherwise noted in the narrative. E:
Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits.
Measurement uncertainty values, as applicable, are available upon request
Test results relate only to the sample tested. Clients should be aware that a critical step in a chemical or microbiological
analysis is the collection of the sample. Unless the sample analyzed is truly representative of the bulk of material involved,
the test results will be meaningless. If you have questions regarding the proper techniques of collecting samples, please
contact us. We cannot be held responsible for sample integrity, however, unless sampling has been performed by a member
of our staff. Times are local to the area of activity. Parameters listed in the 40 CFR Part 136 Table II as "analyze
immediately" and tested in the laboratory are not performed within 15 minutes of collection.
This report shall not be reproduced except in full, without the written approval of the laboratory.
WARRANTY AND LIMITS OF LIABILITY - In accepting analytical work, we warrant the accuracy of test results for the
sample as submitted. The foregoing express warranty is exclusive and is given in lieu of all other warranties, expressed or
implied, except as otherwise agreed. We disclaim any other warranties, expressed or implied, including a warranty of fitness
for particular purpose and warranty of merchantability. In no event shall Eurofins Lancaster Laboratories Environmental, LLC
be liable for indirect, special, consequential, or incidental damages including, but not limited to, damages for loss of profit or
goodwill regardless of (A) the negligence (either sole or concurrent) of Eurofins Lancaster Laboratories Environmental and
(B) whether Eurofins Lancaster Laboratories Environmental has been informed of the possibility of such damages. We
accept no legal responsibility for the purposes for which the client uses the test results. Except as otherwise agreed, no
purchase order or other order for work shall be accepted by Eurofins Lancaster Laboratories Environmental which includes
any conditions that vary from the Standard Terms and Conditions, and Eurofins Lancaster Laboratories Environmental
hereby objects to any conflicting terms contained in any acceptance or order submitted by client.
A.r7We/L—
Page 3 of 19 1 /30/2024

Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
Table of Contents
Laboratory Job ID: 410-157788-1
Cover Page ..............................................
1
Table of Contents .........................................
4
Definitions/Glossary.......................................
5 L
Case Narrative ...........................................
6
Detection Summary ........................................
7
Client Sample Results ......................................
8
QC Sample Results ........................................
9
QC Association Summary ...................................
12
Lab Chronicle ............................................
14
Certification Summary ......................................
15
Method Summary .........................................
16
Sample Summary .........................................
17
Chain of Custody ..........................................
18
Receipt Checklists .........................................
19
Eurofins Lancaster Laboratories Environment Testing LLC
Page 4 of 19 1 /30/2024

Definitions/Glossary
Client: FTN Associates, Ltd. Job ID: 410-157788-1
Project/Site: Badin Business Park - Outfall 019
Qualifiers
General Chemistry
Qualifier Qualifier Description
b Result Detected in the Unseeded Control blank (USB).
cn Refer to Case Narrative for further detail
H Sample was prepped or analyzed beyond the specified holding time. This does not meet regulatory requirements.
H3 Sample was received and analyzed past holding time. This does not meet regulatory requirements.
Glossary
Abbreviation These commonly used abbreviations may or may not be present in this report.
n Listed under the "D" column to designate that the result is reported on a dry weight basis
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
oil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Lever'
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MOIL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRIES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 5 of 19 1 /30/2024

Case Narrative
Client: FTN Associates, Ltd. Job ID: 410-157788-1
Project: Badin Business Park - Outfall 019
Job ID: 410-157788-1 Eurofins Lancaster Laboratories Environment
Job Narrative
410-157788-1 '
Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary C
Page unless otherwise noted under the individual analysis. Data qualifiers are applied to indicate exceptions. Noncompliant
quality control (QC) is further explained in narrative comments.
Matrix QC may not be reported if insufficient sample or site -specific QC samples were not submitted. In these situations, to
demonstrate precision and accuracy at a batch level, a LCS/LCSD may be performed, unless otherwise specified in the
method.
• Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed
unless attributed to a dilution or otherwise noted in the narrative. E:
Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits. F
Receipt
The sample was received on 1/18/2024 1:55 PM. Unless otherwise noted below, the sample arrived in good condition, and, where
required, properly preserved and on ice. The temperature of the cooler at receipt time was 0.8°C
HPLC/IC
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
Metals
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. E:
General Chemistry
Method 2540D: The following sample(s) was received with less than 2 days remaining on the holding time or less than one shift (8
hours) remaining on a test with a holding time of 7 days. As such, the laboratory had insufficient time remaining to perform the
analysis within holding time: OF019 - Grab (410-157788-1).
Method SM4500NH3D: The following sample was diluted due to the nature of the sample matrix: OF019 - Grab (410-157788-1).
Elevated reporting limits (RLs) are provided.
Method SM5210B_Calc: The method blank result associated with batch 410-466367 was higher than the method -required limit of
0.2 mg/L.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 6 of 19 1 /30/2024

Detection Summary
Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
Client Sample ID: OF019 - Grab
Analyte
Aluminum
Total Suspended Solids
Biochemical Oxygen Demand
Result Qualifier
RL
MDL Unit
5700
25
ug/L
22 H cn
3.0
mg/L
2.4 H H3 b cn
2.0
mg/L
This Detection Summary does not include radiochemical test results.
F
Job ID: 410-157788-1
Lab Sample ID: 410-157788-1
Dil Fac
D Method
Prep Type
1
6020B
Total
Recoverable
1
2540D-2015
Total/NA
1
5210 B-2011
Total/NA
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 7 of 19 1 /30/2024

Client Sample Results
Client: FTN Associates, Ltd.
Job ID: 410-157788-1
Project/Site: Badin Business Park - Outfall 019
Client Sample ID: OF019 - Grab
Lab Sample ID: 410-157788-1
Date Collected: 01/12/24 18:31
Matrix: Water
Date Received: 01/18/24 13:55
Method: EPA 300.0 R2.1 - Anions, Ion Chromatography
Analyte Result Qualifier
RL
MDL Unit
D Prepared
Analyzed Dil Fac
Fluoride <1.0
1.0
mg/L
01/27/24 00:31 5
•
Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable
Analyte Result Qualifier
RL
MDL Unit
D Prepared
Analyzed Dil Fac
Aluminum 5700
25
ug/L
01/24/24 07:45
01/29/24 09:32 1
General Chemistry
C
Analyte Result Qualifier
RL
MDL Unit
D Prepared
Analyzed Dil Fac
HEM (Oil & Grease) (1664B) <4.9
4.9
mg/L
01/25/24 18:47 1
Total Suspended Solids (SM 22 H cn
3.0
mg/L
01/22/24 05:56 1
2540D-2015)
Ammonia-N (SM 4500 NH3 D-2011) <2.4 cn
2.4
mg/L
01/23/24 06:26 10
Biochemical Oxygen Demand (SM 2.4 H H3 b cn
2.0
mg/L
01/19/24 19:43 1
5210 B-2011)
Cyanide, Total (ASTM D7511-12) <0.0060
0.0060
mg/L
01/25/24 10:58 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 8 of 19 1 /30/2024

QC Sample Results
Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
Method: EPA 300.0 R2.1 - Anions, Ion Chromatography
Lab Sample ID: MB 410-467310/41
Matrix: Water
Analysis Batch: 467310
MB MB
Analyte
Result Qualifier RL
Fluoride
<0.20 0.20
FLab Sample ID: LCS 410-467310/39
Matrix: Water
Analysis Batch: 467310
Spike
Analyte
Added
Fluoride
0.750
Lab Sample ID: LCSD 410-467310/40
Matrix: Water
Analysis Batch: 467310
Spike
Analyte
Added
Fluoride
0.750
F
Job ID: 410-157788-1
Client Sample ID: Method Blank
Prep Type: Total/NA
L
MDL Unit D Prepared Analyzed Dil Fac
mg/L 01/27/24 01:40 1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
LCS LCS %Rec F
Result Qualifier Unit D °/Rec Limits F
0.684 mg/L 91 90 - 110
Client Sample ID: Lab Control Sample Dup
Prep Type: Total/NA
LCSD LCSD
-
%Rec
RPD
Result Qualifier
Unit
D %Rec Limits
RPD Limit
0.697
mg/L
93 90 -110
2 20
F-
Method: 6020B - Metals (ICP/MS)
Lab Sample ID: MB 410-465743/1-A
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total Recoverable
Analysis Batch: 467665
Prep Batch: 465743
MB MB
Analyte
Result Qualifier RL MDL Unit
D Prepared Analyzed oil Fac
Aluminum
<25 25 ug/L
01/24/24 07:45 01/29/24 09:02 1
Lab Sample ID: LCS 410-465743/2-A
Client Sample ID: Lab Control Sample
Matrix: Water
Prep Type: Total Recoverable
Analysis Batch: 467665
Prep Batch: 465743
Spike LCS LCS
%Rec
Analyte
Added Result Qualifier
Unit D %Rec Limits
Aluminum
5000 5130
ug/L 103 87 - 119
Lab Sample ID: LCSD 410-465743/3-A
Client Sample ID: Lab Control Sample Dup
Matrix: Water
Prep Type: Total Recoverable
Analysis Batch: 467665
Prep Batch: 465743
Spike LCSD LCSD
%Rec RPD
Analyte
Added Result Qualifier
Unit D %Rec Limits RPD Limit
Aluminum
5000 5030
ug/L 101 87 -119 2 20
Method: 1664B - HEM and SGT-HEM
Lab Sample ID: MB 410-466892/1
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 466892
MB MB
Analyte
Result Qualifier RL MDL Unit
D Prepared Analyzed Dil Fac
HEM (Oil & Grease)
<5.0 5.0 mg/L
01/25/24 18 47 1
Eurofins
Lancaster Laboratories Environment Testing, LLC
Page 9 of 19 1 /30/2024

QC Sample Results
Client: FTN Associates, Ltd.
Job ID: 410-157788-1
Project/Site: Badin Business Park - Outfall 019
Method: 1664B - HEM and SGT-HEM (Continued)
FLab Sample ID: LCS 410-466892/2
Client Sample ID: Lab Control Sample
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 466892
Spike LCS LCS
%Rec
Added Result Qualifier
Unit D °/Rec Limits
LAnalyte
HEM (Oil & Grease)
40.0 34.1
mg/L 85 78 _ 114
Lab Sample ID: LCSD 410-466892/3
Client Sample ID: Lab Control Sample Dup
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 466892
Spike LCSD LCSD
%Rec RPD
Analyte
Added Result Qualifier
Unit D %Rec Limits RPD Limit
HEM (Oil &Grease)
40.0 31.4
mg/L 78 78 _ 114 8 13
Method: 2540D-2015 - Total Suspended Solids (Dried at 103-105°C)
F-Lab Sample ID: MB 410-465245/1
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 465245
MB MB
Analyte Result Qualifier
RL MDL Unit
D Prepared Analyzed oil Fac
Total Suspended Solids <3.0
3.0 mg/L
01/22/24 05:56 1
Lab Sample ID: LCS 410-465245/2
Client Sample ID: Lab Control Sample
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 465245
Spike LCS LCS
%Rec
Analyte
Added Result Qualifier
Unit D %Rec Limits
Total Suspended Solids
151 147
mg/L 97 89 -105
Method: 4500 NH3 D-2011 - Ammonia
FLab Sample ID: MB 410-465681/5
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 465681
MB MB
Analyte Result Qualifier
RL MDL Unit
D Prepared Analyzed Dil Fac
Ammonia-N <0.24
0.24 mg/L
01/22/2415:00 1
Lab Sample ID: LCS 410-465681/6
Client Sample ID: Lab Control Sample
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 465681
Spike LCS LCS
%Rec
Analyte
Added Result Qualifier
Unit D %Rec Limits
Ammonia-N
5.00 4.75
mg/L 95 88 - 122
Method: 5210 B-2011 - BOD, 5-Day
Lab Sample ID: SCB 410-466367/13
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 466367
SCB SCB
Analyte Result Qualifier
RL MDL Unit
D Prepared Analyzed Dil Fac
Biochemical Oxygen Demand 0.938
0.0000010 mg/L
01/19/24 16:16 1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 10 of 19 1/30/2024

QC Sample Results
Client: FTN Associates, Ltd.
Job ID: 410-157788-1
Project/Site: Badin Business Park - Outfall 019
Method: 5210 B-2011 - BOD, 5-Day (Continued)
Lab Sample ID: USB 410-466367/11
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 466367
USB USB
Analyte Result Qualifier
RL MDL Unit
D Prepared Analyzed Dil Fac
Biochemical Oxygen Demand 0.343
0.0000010 mg/L
01/19/24 16:06 1
Lab Sample ID: LCS 410-466367/36
Client Sample ID: Lab Control Sample
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 466367
Spike LCS LCS
%Rec
Analyte
Added Result Qualifier Unit
D %Rec Limits
Biochemical Oxygen Demand
199 188 mg/L
95 85 - 115
Method: D7511-12 - Total Cyanide
Lab Sample ID: MB 410-468157/15
Client Sample ID: Method Blank
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 468157
MB MB
Analyte Result Qualifier
RL MDL Unit
D Prepared Analyzed Dil Fac
Cyanide, Total <0.0060
0.0060 mg/L
01/25/24 10:47 1
Lab Sample ID: LCS 410-468157/16
Client Sample ID: Lab Control Sample
Matrix: Water
Prep Type: Total/NA
Analysis Batch: 468157
Spike LCS LCS
%Rec
Analyte
Added Result Qualifier Unit
D %Rec Limits
Cyanide, Total
0.0501 0.0528 mg/L
105 84 - 116
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 11 of 19 1/30/2024

QC Association Summary
Client: FTN Associates, Ltd.
Job ID: 410-157788-1
Project/Site: Badin Business Park - Outfall 019
HPLC/IC
Analysis Batch: 467310
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
OF019 - Grab
Total/NA
Water
EPA 300.0 R2.1
MB 410-467310/41
Method Blank
Total/NA
Water
EPA 300.0 R2.1
LCS 410-467310/39
Lab Control Sample
Total/NA
Water
EPA 300.0 R2.1
LCSD 410-467310/40
Lab Control Sample Dup
Total/NA
Water
EPA 300.0 R2.1
Metals
Prep Batch: 465743
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
6FO19 - Grab
Total Recoverable
Water
3005A
MB 410-465743/1-A
Method Blank
Total Recoverable
Water
3005A
LCS 410-465743/2-A
Lab Control Sample
Total Recoverable
Water
3005A
LCSD 410-465743/3-A
Lab Control Sample Dup
Total Recoverable
Water
3005A
Analysis Batch: 467665
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
OF019 - Grab
Total Recoverable
Water
6020B
465743
MB 410-465743/1-A
Method Blank
Total Recoverable
Water
6020B
465743
LCS 410-465743/2-A
Lab Control Sample
Total Recoverable
Water
6020B
465743
LCSD 410-465743/3-A
Lab Control Sample Dup
Total Recoverable
Water
6020B
465743
General Chemistry
Analysis Batch: 465245
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
OF019 - Grab
Total/NA
Water
254OD-2015
MB 410-465245/1
Method Blank
Total/NA
Water
254OD-2015
LCS 410-465245/2
Lab Control Sample
Total/NA
Water
254OD-2015
Analysis Batch: 465681
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
OF019 - Grab
Total/NA
Water
4500 NH3
D-2011
MB 410-465681/5
Method Blank
Total/NA
Water
4500 NH3
D-2011
LCS 410-465681/6
Lab Control Sample
Total/NA
Water
4500 NH3
D-2011
Analysis Batch: 466367
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
OF019 - Grab
Total/NA
Water
5210 B-2011
SCB 410-466367/13
Method Blank
Total/NA
Water
5210 B-2011
USB 410-466367/11
Method Blank
Total/NA
Water
5210 B-2011
LCS 410-466367/36
Lab Control Sample
Total/NA
Water
5210 B-2011
Analysis Batch: 466892
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
410-157788-1
OF019 - Grab
Total/NA
Water
1664B
MB 410-466892/1
Method Blank
Total/NA
Water
1664B
LCS 410-466892/2
Lab Control Sample
Total/NA
Water
1664B
LCSD 410-466892/3
Lab Control Sample Dup
Total/NA
Water
1664B
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 12 of 19 1/30/2024

QC Association Summary
Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
General Chemistry
Analysis Batch: 468157
Lab Sample ID
Client Sample ID
410-157788-1
OF019 - Grab
MB 410-468157/15
Method Blank
LCS 410-468157/16
Lab Control Sample
Prep Type
Matrix
Method
Total/NA
Water
D7511-12
Total/NA
Water
D7511-12
Total/NA
Water
D7511-12
Job ID: 410-157788-1
Prep Batch
0
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 13 of 19 1/30/2024

Lab Chronicle
Client: FTN Associates, Ltd.
Job ID: 410-157788-1
Project/Site: Badin Business Park - Outfall 019
Client Sample ID: OF019 - Grab
Lab Sample ID: 410-157788-1
Date Collected: 01/12/24 18:31
Matrix: Water
Date Received: 01/18/24 13:55
Batch Batch
Dilution
Batch
Prepared
Prep Type Type Method Run
Factor
Number
Analyst
Lab
or Analyzed
Total/NA Analysis EPA 300.0 R2.1
5
467310
W7FX
ELLE
01/27/24 00:31
Total Recoverable Prep 3005A
465743
NU9R
ELLE
01/24/24 07:45
Total Recoverable Analysis 6020B
1
467665
F7JF
ELLE
01/29/24 09:32
Total/NA Analysis 1664E
1
466892
QT6L
ELLE
01/25/2418:47
Total/NA Analysis 2540D-2015
1
465245
M98K
ELLE
01/22/24 05:56 - 01/23/24 06:10'
Total/NA Analysis 4500 NH3 D-2011
10
465681
UML5
ELLE
01/23/24 06:26
Total/NA Analysis 5210 B-2011
1
466367
B6LN
ELLE
01/19/24 19:43
Total/NA Analysis D7511-12
1
468157
UJE2
ELLE
01/25/2410:58
This procedure uses a method stipulated length of time for the process.
Both start and end times
are displayed.
Laboratory References:
ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL [phone]
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 14 of 19 1/30/2024

Accreditation/Certification Summary
Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
North Carolina (DW)
State
Identification Number Expiration Date
42705 07-31-24
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes
for which the agency does not offer certification.
Analysis Method Prep Method
Matrix
Analyte
1664E
Water
HEM (Oil & Grease)
254OD-2015
Water
Total Suspended Solids
4500 NH3 D-2011
Water
Ammonia-N
5210 B-2011
Water
Biochemical Oxygen Demand
6020E 3005A
Water
Aluminum
D7511-12
Water
Cyanide, Total
EPA 300.0 R2.1
Water
Fluoride
North Carolina (WW/SW) State 521 12-31-24
F
Job ID: 410-157788-1
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 15 of 19 1/30/2024

Method Summary
Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
Job ID: 410-157788-1
Method
Method Description
Protocol
Laboratory
EPA 300.0 R2.1
Anions, Ion Chromatography
EPA
ELLE
6020B
Metals (ICP/MS)
SW846
ELLE
1664B
HEM and SGT-HEM
1664B
ELLE
2540D-2015
Total Suspended Solids (Dried at 103-105°C)
SM
ELLE
4500 NH3 D-2011
Ammonia
SM
ELLE
5210 B-2011
BOD, 5-Day
SM
ELLE
D7511-12
Total Cyanide
ASTM
ELLE
3005A
Preparation, Total Recoverable or Dissolved Metals
SW846
ELLE
Protocol References:
1664E = EPA-821-98-002
ASTM = ASTM International
EPA = US Environmental Protection Agency
SM = "Standard Methods For The Examination Of Water And Wastewater"
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL [phone]
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 16 of 19 1/30/2024

Sample Summary
Client: FTN Associates, Ltd.
Project/Site: Badin Business Park - Outfall 019
Lab Sample ID Client Sample ID
410-157788-1 OF019 - Grab
Job ID: 410-157788-1
Matrix Collected Received
Water 01/12/2418:31 01/18/2413:55
Eurofins Lancaster Laboratories Environment Testing LLC
Page 17 of 19 1/3072024

Mtn
Date:
I— I q —Zy
Project Name Project No.
Badin Business Park - Outfall 019 06010-1805-OD1
Project Manager (Print)
Jon Wilson
Page 1 of 1
Laboratory Name:
Euroflns - Lancaster
Submitted by.
Jon Wilson
Badin Business Park LLC
293 Highway 740
Badin, North Carolina 28009
704-562-6138
Ion.wilsonCMalcoa.com
Parameters
(Method
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24 Hours
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Due:
Sampler Signature(s)
Recorded By (P t)
St o% IV, 1) Q.,
SAMPLE DESCRIPTION
Sample Identification
Date
Time
Matrie
No. of
Containers
c1
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OF019-Grab
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G=Glass P=Plastic V=VOA vials H=HCI to pH2 T=Sodium
NO=None S=Sulfuric acid pH2 N=Nitric add pH2 B=NaOH to
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Relinquished By (Signature)
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Please send results to:
m n-as o o w' n I
Laboratory R : Outfall 019 compliance samples.
Page 18 of 19�Z' -A6 C
1/30/2024

Client: FTN Associates, Ltd.
Login Number: 157788
List Number: 1
Creator: Santiago, Nathaniel
Question
Login Sample Receipt Checklist
Job Number: 410-157788-1
List Source: Eurofins Lancaster Laboratories Environment Testing, LLC
L
Answer Comment
The cooler's custody seal is intact.
True
The cooler or samples do not appear to have been compromised or
True
tampered with.
Samples were received on ice.
True
Cooler Temperature acceptable,where thermal pres is required(</=6C, not
True
frozen).
Cooler Temperature is recorded.
True
WV:Container Temp acceptable,where thermal pres is required (</=6C, not
N/A
frozen).
WV: Container Temperature is recorded.
N/A
COC is present.
True
COC is filled out in ink and legible.
True
COC is filled out with all pertinent information.
True
There are no discrepancies between the containers received and the COC.
True
Sample containers have legible labels.
True
Containers are not broken or leaking.
True
Sample collection date/times are provided.
True
Appropriate sample containers are used.
True
Sample bottles are completely filled.
True
There is sufficient vol. for all requested analyses.
True
Is the Field Sampler's name present on COC?
True
Sample custody seals are intact.
N/A
VOA sample vials do not have headspace >6mm in diameter (none, if from
N/A
WV)?
7
M
Eurofins Lancaster Laboratories Environment Testing, LLC
Page 19 of 19
1 /30/2024

K & W Laboratories
1121 Hwy 24/27 W
Midland, North Carolina 28107
Tel [phone] Fax [phone]
Client: Badin Business Park
293 Highway 740
Badin, NC 28009
Results Report
Date: 06-Feb-24
Order ID: 24012907
Project:
Stormwater
Collect Date:
1/27/2024
Location:
OF019-Grab
Collect Time:
11:53:00 PM
REPORTING ANALYSIS
SAMPLE #
PARAMETER
RESULT UNITS METHOD
LIMIT DATE
24012907-01
BOD
3.0 mg/L SM5210B
2 1/29/2024
24012907-01
TSS
6.8 mg/L SM2540D
2.8 2/1 /2024
NC Certification: 559 SC Certification: 99061
Certified By
G. Kraska / Lab Director

K & W Laboratories
1121 Hwy 24/27 W Midland, NC 28107
Tel: [phone]
Fax: [phone]
Chain of Custody Record
Client/Company: Badin Business Park
Report To: '[e-mail]; [e-mail] Remarks:
Copy To:
Bill To: Alcoa
p0 ## 270677630TRF
o Matdx Types: DW-Drinking Water Type of Cont:
Address: 293 Highway 740
Badin, NC 28009
Contact: ]on Wilson
Phone: [phone] Fax:
Badin Business Park
ww-wastewater GW-Groundwater P-Plastic
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