{"data":{"id":"us/40-cfr-437.10","jurisdiction":"us","citation":"40 CFR 437.10","heading":"Applicability.","body":"(a) Except as provided in § 437.1(b), (c), or (d) or in paragraph (b) of this section, this subpart applies to that portion of the discharge of wastewater from a CWT facility that results from the treatment of, or recovery of metals from, both metal-bearing wastes received from off-site and other CWT wastewater associated with the treatment of, or recovery of metal-bearing wastes.\n(b) In order to ensure appropriate treatment rather than dilution of dissimilar wastes, an NPDES permit writer or control authority may require a new source or an existing facility subject to this subpart to achieve alternative effluent limitations and standards as defined in § 437.2(b) in the following circumstances:\n(1) The facility receives, on a continuing basis, flows of process wastewater from five or fewer facilities subject to 40 CFR subchapter N limitations and standards; and\n(2) The process wastewater flows received for treatment at the facility have relatively consistent pollutant profiles.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","Subpart A—Metals Treatment and Recovery"],"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":"a2b6f86f97040e92e9c64c790b41d8afc8075ba1bf55897d66f26eca9dd77b91","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-437.4","next":"us/40-cfr-437.11"},"notice":"GroundRules: Original legal text. Not legal advice."}