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 Table 340 Sector AA – Benchmark Monitoring Requirements Pollutants of Concern Benchmark Concentration Pollutants of Concern Benchmark Concentration Fabricated Metal Products Except Coating (SIC Codes 3411-3471, 3482-3499, 3911-3915) Fabricated Metal Products Except Coating (SIC Codes 3411-3471, 3482-3499, 3911-3915) Total Recoverable Aluminum 1,100 µg/L Total Recoverable Aluminum 1,100 µg/L Total Recoverable Zinc 120 µg/L Total Recoverable Zinc 120 µg/L Total Recoverable Copper 13 μg/L Total Recoverable Copper 13 μg/L Fabricated Metal Coating and Engraving (SIC Code 3479) Fabricated Metal Coating and Engraving (SIC Code 3479) Total Recoverable Zinc 120 µg/L Total Recoverable Zinc 120 µg/L