{"data":{"id":"us-va/9vac25-151-340","jurisdiction":"us-va","citation":"9VAC25-151-340","heading":"Sector AA - Fabricated metal products","body":"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.\n\nB. Benchmark monitoring and reporting requirements. Metal fabricating facilities are required to monitor their stormwater discharges for the pollutants of concern listed in Table 340.\n\nTable 340\n\nSector AA – Benchmark Monitoring Requirements\n\nPollutants of Concern\n\nBenchmark Concentration\n\nFabricated Metal Products Except Coating (SIC Codes 3411-3471, 3482-3499, 3911-3915)\n\nTotal Recoverable Aluminum\n\n1,100 µg/L\n\nTotal Recoverable Zinc\n\n120 µg/L\n\nTotal Recoverable Copper\n\n13 μg/L\n\nFabricated Metal Coating and Engraving (SIC Code 3479)\n\nTotal Recoverable Zinc\n\n120 µg/L","path":["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","Part IV. Sector Specific Permit Requirements"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter151/section340/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:49:11Z","sha256":"98e3f3fc7a920e245edabf67fc84cae5c0f1e5ef44febf58237043e84efa5121","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac25-151-320","next":"us-va/9vac25-151-350"},"notice":"GroundRules: Original legal text. Not legal advice."}