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HomeMy WebLinkAboutNCG030695_2021 DMR_20210714July 14, 2021 Division of Energy Mineral and Land Resources Attn: Central Files 1617 Mail Service Center Raleigh, NC 27699-1617 Central Files: P.O. Box 5030 2020 Ashcraft Avenue Monroe, NC 28111-5030 Phone: (704) 289-4511 Fax: (704)290-5194 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 I End Year 3 — Period 1 0 January1, 2021 1 June 30, 2021 Analytical monitoring includes: • Outfall #01. No Flow • Outfall #02: Under Construction • Outfall #03: No Flow If you have any questions or need additional information, please contact me at 704-289-4511 x3800. Thank you. Sincerely, Mike McManus EHS Coordinator Spccimty rAwerials ATI (Allvac) — Bakers Campus (BPO & EIGA) Stormwater Monitoring Report Form Sample Date: ec,3 Pefw I Sample Time: Sample Location: Stormwater Discharge Outfall #k 01 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 (mg/1) pH (std units) 6-9 TSS D 100 Copper, Total Recoverable �1OG✓ 0.010 Lead, Total 0.075 Zlnc, Total Recoverable 4 0.126 Non -Polar Oil & Grease/TPH l-496c1 15 Temperature Deg. Celsius Storm Date: Storm Duration: Duration of time preceding rain event exceeding 0.1": Estimated Flow Calculation: (Hrs.) Inches of Rainfall: (Hrs.) Q=CIA Q (Total) = Q (Pervious Area) + Q (Impervious Area) Q (Tot., cfs) = (.4 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 cfs (Inches of rain) + 0.5625 x (Inches of rain) Rev. 01 Date of Rev.: 1/22/2020 Specialty Materials ATI (Allvac) — Bakers Campus (BP4 & EIGA) Stormwater Monitoring Report Form Sample Date: Year.3 t3�rr0 j !' eC Sample Time: i Sample Location: Stormwater Discharge Outfall # 02 Drainage Area= 217,800 sq. ft. = 5 Acres % Impervious= 30% Person Collecting Samples: Laboratory Performing Analysis: Analytical Techniques and Methods: AO CFR Part 136 Results of Sample Analysis: Parameter Results (mg/1) Benchmark Values (mg/1) pH (std units) 6-9 TSS LGfibb _ 100 Copper, Total Recoverable f, n 0A10 Lead, Total 0.075 Zinc, Total Recoverable 0.126 Non -Polar Oil & Grease/TPH Lr� Q T 15 Temperature Deg. Celsius Storm Date: Storm Duration: Duration of time preceding rain event exceeding 0.1": Estimated Flow Calculation: (Hrs.) Inches of Rainfall: (Hrs.) Q=CIA Q (Total) = Q (Pervious Area) } Q (Impervious Area) Q (Tot., cfs) = (.A x inches rain/12 inches/ft. x 5 acres x .70) + (.9 x inches rain/12 inches/ft. x 5 x .30) Q (Total, cfs) = 0.1167 x cfs (Inches of rain) + 0.1125 x (Inches of rain) Rev. 01 Date of Rev.: 1/22/2020 ATI Specialty Materials AT] (Allvac) — Bakers Campus (BPQ & EIGA) Stormwater Monitoring Report Form Sample Date: e Sample Time: Sample Location: Stormwater Discharge Outfall # 03 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 0.010 Lead, Total 0.075 Zinc, Total Recoverable ,,%O 0.126 Non -Polar Oil & Grease/TPH 15 Temperature Deg. Celsius Storm Date: Storm Duration: Duration of time preceding rain event exceeding 0.1": Estimated Flow Calculation: (Hrs.) Inches of Rainfall: (Hrs.) 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 (inches of rain) + 0.1125 x cfs (Inches of rain) Rev. 01 Date of Rev.: 1/22/2020 A, 41 a w v � o o� a an Ott 2 L � 06 3 JS O O� E U fl bA C u d U 4 l�E un 0 � � O Cd m +a Mesa c� 0 ai c�a Low c a w `" Ll A GM 00 A 5+ m f!5- U L. W° W G RLl;Llb, —W a+ PC 0A FA 0� PC 0 0 a� �00O�s ci gn