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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 151. Virginia Pollutant Discharge Elimination System (VPDES) General Permit Regulation for Discharges of Stormwater Associated with Industrial Activity
12/22/2024

9VAC25-151-340. Sector AA - Fabricated metal products.

A. Discharges covered under this section. The requirements listed under this section apply to stormwater discharges associated with industrial activity from the following fabricated metals industries, except for electrical related industries: fabricated metal products, except machinery and transportation equipment, SIC Codes 3411-3471, 3479, and 3482-3499; and jewelry, silverware, and plated ware, SIC Codes 3911-3915.

B. Benchmark monitoring and reporting requirements. Metal fabricating facilities are required to monitor their stormwater discharges for the pollutants of concern listed in Table 340.

Table 340
Sector AA – Benchmark Monitoring Requirements

Pollutants of Concern

Benchmark Concentration

Fabricated Metal Products Except Coating (SIC Codes 3411-3471, 3482-3499, 3911-3915)

Total Recoverable Aluminum

1,100 µg/L

Total Recoverable Zinc

120 µg/L

Total Recoverable Copper

13 μg/L

Fabricated Metal Coating and Engraving (SIC Code 3479)

Total Recoverable Zinc

120 µg/L

Statutory Authority

§ 62.1-44.15 of the Code of Virginia; § 402 of the Clean Water Act; 40 CFR Parts 122, 123, and 124.

Historical Notes

Derived from Virginia Register Volume 15, Issue 9, eff. June 30, 1999; amended, Virginia Register Volume 20, Issue 16, eff. July 1, 2004; Volume 25, Issue 19, eff. June 24, 2009; Volume 30, Issue 11, eff. July 1, 2014; Volume 35, Issue 19, eff. July 1, 2019; Volume 40, Issue 15, eff. July 1, 2024.

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