Section 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, industrial or commercial machinery manufacturing facilities (commonly described by SIC Major Group 35 (except SIC Code 357), and SIC Major Group 37 (except SIC Code 373)).

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

Site description. Site map. 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 35, except 357, and SIC 37, except 373)
Total Petroleum Hydrocarbons (TPH)*	15.0 mg/L
Total Suspended Solids (TSS)	100 mg/L
Total Recoverable Copper	18 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.

Historical Notes

Derived from Volume 15, Issue 09, 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.

Statutory Authority

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