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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

9VAC25-151-350. Sector AB - Transportation equipment, industrial, or commercial machinery.

A. Discharges covered under this section. The requirements listed under this section apply to stormwater discharges associated with industrial activity from transportation equipment and industrial or commercial machinery manufacturing facilities commonly described by SIC Codes 3511-3599, except SIC Codes 3571-3579.

B. SWPPP requirements. In addition to the requirements of Part III, the SWPPP shall include, at a minimum, the following item:

Site description. The site map shall identify where any of the following may be exposed to precipitation or surface runoff: vents and stacks from metal processing and similar operations.

C. Benchmark monitoring and reporting requirements. Transportation equipment manufacturing facilities are required to monitor their stormwater discharges for the pollutants of concern listed in Table 350.

Table 350
Sector AB – Benchmark Monitoring Requirements

Pollutants of Concern

Benchmark Concentration

Transportation equipment manufacturing facilities (SIC Codes 3511-3599 except SIC Codes 3571-3579)

Total Petroleum Hydrocarbons (TPH)*

15.0 mg/L

Total Suspended Solids (TSS)

100 mg/L

Total Recoverable Copper

13 μg/L

Total Recoverable Zinc

120 μg/L

*Total Petroleum Hydrocarbons (TPH) is the sum of individual gasoline range organics and diesel range organics (TPH-GRO and TPH-DRO) to be measured by EPA SW 846 Method 8015 for gasoline and diesel range organics, or by EPA SW 846 Methods 8260 Extended and 8270 Extended.

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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