{"data":{"id":"us/40-cfr-461.34","jurisdiction":"us","citation":"40 CFR 461.34","heading":"Pretreatment standards for existing sources (PSES).","body":"(a) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart that introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the pretreatment standards for existing sources listed below:\n(1) Subpart C—Open Formation—Dehydrated—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 3.19 1.68\nLead 0.71 0.34\n(2) Subpart C—Open Formation—Wet—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 0.100 0.053\nLead 0.022 0.010\n(3) Subpart C—Plate Soak—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 0.039 0.021\nLead 0.008 0.004\n(4) Subpart C—Battery Wash—(Detergent)—PSES.\nPollutant or pollutant Property Maximum for any 1 Day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 1.71 0.90\nLead 0.38 0.18\n(5) Subpart C—Direct Chill Lead Casting—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 0.0004 0.0002\nLead 0.00008 0.00004\n(6) Subpart C—Mold Release Formulation—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 0.011 0.006\nLead 0.002 0.001\n(7) Subpart C—Truck Wash—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead in trucked batteries\nEnglish units—pounds per 1,000,000 pounds of lead in trucked batteries\nCopper 0.026 0.014\nLead 0.005 0.002\n(8) Subpart C—Laundry—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 0.21 0.11\nLead 0.05 0.02\n(9) Subpart C—Miscellaneous Wastewater Streams—PSES.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of lead used\nEnglish units—pounds per 1,000,000 pounds of lead used\nCopper 0.58 0.31\nLead 0.13 0.06\n(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.\n(c)(1) In cases where battery employee shower wastewater containing concentrations of lead exceeding 0.20 mg/l is combined with process wastewaters prior to treatment, the Control Authority may, for purposes of applying the Combined Wastestream Formula under § 403.6(e) of this chapter, notwithstanding the provisions of § 403.6(e), exercise its discretion and classify battery employee shower wastewater as an unregulated rather than a dilute (FD) wastestream.\n(2) Before the Control Authority may exercise its discretion to classify such a stream as an unregulated stream, the battery manufacturer must provide engineering, production, and sampling and analysis information sufficient to allow a determination by the Control Authority on how the stream should be classified.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 461—BATTERY MANUFACTURING POINT SOURCE CATEGORY","Subpart C—Lead Subcategory"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"963603343648be67ad9c6971fdd614ff6eb0f7712d78b38bbf6fb5167ecfb597","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-461.33","next":"us/40-cfr-461.35"},"notice":"GroundRules: Original legal text. Not legal advice."}