{"data":{"id":"us-va/9vac25-151-110","jurisdiction":"us-va","citation":"9VAC25-151-110","heading":"Sector C - Chemical and allied products manufacturing","body":"A. Discharges covered under this section. The requirements listed under this section apply to stormwater discharges associated with industrial activity from facilities engaged in manufacturing the following products and generally described by the SIC code shown:\n\n1. Industrial inorganic chemicals (including SIC Codes 2812-2819);\n\n2. Plastic materials and synthetic resins, synthetic rubbers, and cellulosic and other synthetic fibers, except glass (including SIC Codes 2821-2824);\n\n3. Soap and other detergents, including facilities producing glycerin from vegetable and animal fats and oils; specialty cleaning, polishing, and sanitation preparations; surface active preparations used as emulsifiers, wetting agents, and finishing agents, including sulfonated oils; and perfumes, cosmetics, and other toilet preparations (including SIC Codes 2841-2844); and\n\n4. Nitrogenous and phosphatic basic fertilizers, mixed fertilizer, pesticides, and other agricultural chemicals (SIC Codes 2873-2879). Composting Facilities (SIC Code 2875) are included.\n\nB. Numeric effluent limitations. The following numeric effluent limitations shall be met by existing and new discharges with phosphate fertilizer manufacturing runoff. The provisions of this subsection are applicable to stormwater discharges from the phosphate subcategory of the fertilizer manufacturing point source category (40 CFR 418.10). The term contaminated stormwater runoff shall mean precipitation runoff that during manufacturing or processing comes into contact with any raw materials, intermediate product, finished product, byproducts, or waste product. The concentration of pollutants in stormwater discharges shall not exceed the effluent limitations in Table 110-1.\n\nTable 110-1\n\nSector C – Numeric Effluent Limitations\n\nParameter\n\nEffluent Limitations\n\nDaily Maximum\n\n30-day Average\n\nPhosphate Subcategory of the Fertilizer Manufacturing Point Source Category (40 CFR 418.10) - applies to precipitation runoff that, during manufacturing or processing, comes into contact with any raw materials, intermediate product, finished product, byproducts, or waste product (SIC Code 2874)\n\nTotal Phosphorus (as P)\n\n105 mg/L\n\n35 mg/L\n\nFluoride\n\n75 mg/L\n\n25 mg/L\n\nC. Benchmark monitoring and reporting requirements. Agricultural chemical manufacturing facilities; industrial inorganic chemical facilities; soaps, detergents, cosmetics, and perfume manufacturing facilities; and plastics, synthetics, and resin manufacturing facilities are required to monitor their stormwater discharges for the pollutants of concern listed in Table 110-2.\n\nTable 110-2\n\nSector C – Benchmark Monitoring Requirements\n\nPollutants of Concern\n\nBenchmark Concentration\n\nAgricultural Chemicals (SIC Codes 2873-2879)\n\nTotal Nitrogen\n\n2.2 mg/L\n\nTotal Recoverable Zinc\n\n120 μg/L\n\nTotal Phosphorus\n\n2.0 mg/L\n\nIndustrial Inorganic Chemicals (SIC Codes 2812-2819)\n\nTotal Recoverable Aluminum\n\n1,100 μg/L\n\nTotal Nitrogen\n\n2.2 mg/L\n\nSoaps, Detergents, Cosmetics, and Perfumes (SIC Codes 2841-2844)\n\nTotal Nitrogen\n\n2.2 mg/L\n\nTotal Recoverable Zinc\n\n120 μg/L\n\nPlastics, Synthetics, and Resins (SIC Codes 2821-2824)\n\nTotal Recoverable Zinc\n\n120 μg/L\n\nComposting Facilities (SIC Code 2875)\n\nTotal Suspended Solids (TSS)\n\n100 mg/L\n\nBiochemical Oxygen Demand (BOD5)\n\n30 mg/L\n\nChemical Oxygen Demand (COD)\n\n120 mg/L\n\nAmmonia\n\n2.14 mg/L\n\nTotal Nitrogen\n\n2.2 mg/L\n\nTotal Phosphorus\n\n2.0 mg/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/section110/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:49:11Z","sha256":"5dbf545a5317e5b07385a9b4dc218f0ce717525cc1969798a398ba95446b7876","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac25-151-100","next":"us-va/9vac25-151-120"},"notice":"GroundRules: Original legal text. Not legal advice."}