NCG030695_2022 DMR_20220721

July 21, 2022
Division of Energy Mineral and Land Resources
Attn: Central Files
1617 Mail Service Center
Raleigh, NC 27699-1617
Central Files:
AATI
P.O. Box 5030
2020 Ashcraft Avenue
Monroe, NC 28111-5030
Phone: [phone]
Fax: [phone]
Email:
Attached, please find stormwater monitoring data for Permit No NCG030695. The originals and
one copy are included. The monitoring data is for the following monitoring schedule:
Monitoring Period
Sample Number
Start
IEnd
Year 4 — Period 1
0
January 1, 2022
1 June 30, 2022
Analytical monitoring includes:
• Outfall #01:
• Outfall #02:
• Outfall #03:
If you have any questions or need additional information, please contact me at 704-289-4511
0800. Thank you.
Sincerely,
Mike c anus
EHS Coordinator

"!I
atena'a
ATI (Allvac) — Bakers Campus (BPO & EIGA)
Stormwater Monitoring Report Form
Sample Date: Sample Time:
Sam le Location: Stormwater Discharge Outfall # 01
year J4 , Period Drainage Area= 1,809,000 sq. ft. = 25 Acres
% Impervious= 30%
Person Collecting Samples:
Laboratory Performing Analysis:
Analytical Techniques and Methods: 40 CFR Part 136
Results of Sample Analysis:
Parameter Results (mg/1) Benchmark Values
pH (std units) 6-9
TSS
No 100
Copper, Total Recoverable o ki 0.010
Lead, Total
0.075
Zinc, Total Recoverable 0 0.126
Non -Polar Oil & Grease/TPH D� 15
Temperature Deg. Celsius
Storm Date: Storm Duration: (Hrs.) Inches of Rainfall:
Duration of time preceding rain event exceeding 0.111: (Hrs.)
Estimated Flow Calculation:
Q=CIA
Q (Total) = Q (Pervious Area) + Q (Impervious Area)
Q (Tot., efs) = (A x inches rain/12 inches/ft. x 25 acres x .70) + (.9 x inches rain/12 inches/ft. x 25 x .30)
Q (Total, cfs) = 0.5833 x (Inches of rain) + 0.5625 x (Inches of rain)
cfs
Rev. 01
Date of Rev.: 1/22/2020

*ATI
SPIVIdIty filat(,r
ATI (Allvac) — Bakers Campus (BPO & EIGA)
Stormwater Monitoring Report Form
Sample Date: Sample Time:
Sample Location: Stormwater Discharge Outfall # 02
rem'' 7 Pe l'o J Drainage Area= 217,800 sq. ft. = 5 Acres
Person Collecting Samples: Impervious= 30%
Laboratory Performing Analysis:
Analytical Techniques and Methods: 40 CFR Part 136
Results of Sample Analysis:
Storm Date: __ Storm Duration: (Hrs.) Inches of Rainfall:
Duration of time preceding rain event exceeding 0.110: (Hrs.)
Estimated Flow Calculation:
Q=CIA
Q (Total) = Q (Pervious Area) + Q (Impervious Area)
Q (Tot., cfs) _ (.4 x inches rain/12 inches/ft. x 5 acres x .70) + (.g x inches rain/12 inches/ft. x 5 x .30)
Q (Total, cfs) = 0.1167 x (Inches of rain) + 0.1125 x (Inches of rain)
cfs
Rev. 01
Date of Rev.: 1/22/2020

AT
�-p+:r:€alty Mat€,r€als
ATI (Allvac) — Bakers Campus (BPO & EIGA)
Stormwater Monitoring Report Form
Sample Date: Sample Time:
Sample location: Stormwater Discharge Outfall # 03
Yea�fr Pei od. J Drainage Area= 130,680 sq. ft. = 3 Acres
Impervious= 50%
Person Collecting Samples:
Laboratory Performing Analysis:
Analytical Techniques and Methods: 40 CFR Part 136
Results of Sample Analysis:
Parameter
Results (mg/1)
Benchmark Values (mg/1)
pH
(std units)
6-9
TSS
100
Copper, Total Recoverable
�/per
0.010
Lead, Total
0.075
Zinc, Total Recoverable
��/�t o
0.126
Non -Polar Oil & Grease/TPH
"70A%
15
Temperature
Deg. Celsius
Storm Date: Storm Duration: (Hrs.) Inches of Rainfall:
Duration of time preceding rain event exceeding 0.111: (Hrs.)
Estimated Flow Calculation:
Q=CIA
Q (Total) = Q (Pervious Area) + Q (Impervious Area)
Q (Tot., cfs) = (.4 x inches rain/12 inches/ft. x 3 acres x .50) + (.9 x inches rain/12 inches/ft. x 3 x .50)
Q (Total, cfs) = 0.05 x
cfs
(Inches of rain) + 0.1125 x (Inches of rain)
Rev. 01
Date of Rev.: 1/22/2020

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