{"query":{"parameter":"arsenic","place":"US-ND","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-ND","US"],"parameter_keys":["cas:7440-38-2","name:arsenic (+3)","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc","name:arsenic, cadmium (h), copper (h), lead (h), zinc","name:arsenic, dissolved","name:arsenic iii","name:arsenic extractible","name:arsenic - total","name:arsenic, total","name:arsenic v","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","name:total arsenic"],"names_matched":[["arsenic","cas:7440-38-2"],["arsenic 3","name:arsenic (+3)"],["arsenic 3 total recoverable","name:arsenic (+3)"],["arsenic cadmium h copper h lead h mercury zinc","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h mercury zinc h","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h zinc","name:arsenic, cadmium (h), copper (h), lead (h), zinc"],["arsenic cadmium h copper h lead h zinc h","name:arsenic, cadmium (h), copper (h), lead (h), zinc"],["arsenic dissolved","name:arsenic, dissolved"],["arsenic dissolved trivalent","name:arsenic iii"],["arsenic extractible","name:arsenic extractible"],["arsenic iii","name:arsenic iii"],["arsenic iii dissolved","name:arsenic iii"],["arsenic iii total recoverable","name:arsenic iii"],["arsenic total","name:arsenic - total"],["arsenic total","name:arsenic, total"],["arsenic trivalent","name:arsenic iii"],["arsenic trivalent dissolved","name:arsenic iii"],["arsenic v","name:arsenic v"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc h","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc"],["total arsenic","name:total arsenic"],["total arsenic freshwater","name:total arsenic"],["total arsenic marine","name:total arsenic"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water"},"total":466,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"91f6524c9a82b625","parameter":"Arsenic","value":"340","value_num":340,"unit":"µg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-38-2","place":["US-ND"],"conditions":["receiving_water is freshwater","aquatic life: classes I, IA, II and III streams, classified lakes and reservoirs"],"cite":{"instrument":"us_nd_wqs","title":"North Dakota Standards of Quality for Waters of the State (N.D. Admin. Code ch. 33.1-16-02.1): Table 1 maximum limits by stream class and Table 2 water quality criteria","issuer":"State of North Dakota, Department of Environmental Quality","edition":"N.D. Admin. Code ch. 33.1-16-02.1, effective January 1, 2019, amended January 1, 2024, as US EPA posts it in effect for CWA purposes (EPA approved the 2024 amendments March 4, 2024; the chronic mercury criterion 0.012 µg/L stays in effect after EPA's July 15, 2022 disapproval of 0.88 µg/L)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/ndwqs.pdf","source_sha256":"c16e38155ad97d62102ffd2e2f78f595a0a6304d3ef6fd214f449cce4819a4b4","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.D. Admin. Code 33.1-16-02.1-09 Table 2","page":17,"quote":"7440-38-2 Arsenic7 3409 1509 107"}},{"id":"2100ee69040c113e","parameter":"Arsenic","value":"150","value_num":150,"unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-38-2","place":["US-ND"],"conditions":["receiving_water is freshwater","aquatic life: classes I, IA, II and III streams, classified lakes and reservoirs"],"cite":{"instrument":"us_nd_wqs","title":"North Dakota Standards of Quality for Waters of the State (N.D. Admin. Code ch. 33.1-16-02.1): Table 1 maximum limits by stream class and Table 2 water quality criteria","issuer":"State of North Dakota, Department of Environmental Quality","edition":"N.D. Admin. Code ch. 33.1-16-02.1, effective January 1, 2019, amended January 1, 2024, as US EPA posts it in effect for CWA purposes (EPA approved the 2024 amendments March 4, 2024; the chronic mercury criterion 0.012 µg/L stays in effect after EPA's July 15, 2022 disapproval of 0.88 µg/L)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/ndwqs.pdf","source_sha256":"c16e38155ad97d62102ffd2e2f78f595a0a6304d3ef6fd214f449cce4819a4b4","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.D. Admin. Code 33.1-16-02.1-09 Table 2","page":17,"quote":"7440-38-2 Arsenic7 3409 1509 107"}},{"id":"abaa23a8e6de8698","parameter":"Arsenic","value":"10","value_num":10,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-38-2","place":["US-ND"],"conditions":["receiving_water is freshwater","human health: class I, IA and II streams and the classified lakes and reservoirs of appendix II (stream class: appendix I)"],"cite":{"instrument":"us_nd_wqs","title":"North Dakota Standards of Quality for Waters of the State (N.D. Admin. Code ch. 33.1-16-02.1): Table 1 maximum limits by stream class and Table 2 water quality criteria","issuer":"State of North Dakota, Department of Environmental Quality","edition":"N.D. Admin. Code ch. 33.1-16-02.1, effective January 1, 2019, amended January 1, 2024, as US EPA posts it in effect for CWA purposes (EPA approved the 2024 amendments March 4, 2024; the chronic mercury criterion 0.012 µg/L stays in effect after EPA's July 15, 2022 disapproval of 0.88 µg/L)","source_url":"https://www.epa.gov/sites/default/files/2015-09/documents/ndwqs.pdf","source_sha256":"c16e38155ad97d62102ffd2e2f78f595a0a6304d3ef6fd214f449cce4819a4b4","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"N.D. Admin. Code 33.1-16-02.1-09 Table 2","page":17,"quote":"7440-38-2 Arsenic7 3409 1509 107"}},{"id":"6bf2cf5df76a9ba4","parameter":"Arsenic","value":"5.0","value_num":5,"unit":"mg/L","direction":"max","kind":"threshold","medium":"leachate","level":"national","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["(a) A solid waste (except manufactured gas plant waste) exhibits the characteristic of toxicity if, using the Toxicity Characteristic Leaching Procedure, test Method 1311 in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA Publication SW-846, as incorporated by reference in § 260.11 of this chapter, the extract from a representative sample of the waste contains any of the contaminants listed in table 1 at the concentration equal to or greater than the respective value given in that table. Where the waste contains less than 0.5 percent filterable solids, the waste itself, after filtering using the methodology outlined in Method 1311, is considered to be the extract for the purpose of this section."],"cite":{"instrument":"us_40cfr261_24","title":"40 CFR 261.24 — Toxicity characteristic: Table 1, maximum concentration of contaminants for the toxicity characteristic (TCLP regulatory levels)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 261.24 as of 2026-10-13 (title 40 up to date as of that day)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=261&section=261.24","source_sha256":"3a1ec9b0d3051c70e471e359275657b0fa6d98e80927d2217e82b2dbbca60961","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 261.24, Table 1","page":null,"quote":"D004 Arsenic 7440-38-2 5.0"}},{"id":"3594d5c658eb4eb8","parameter":"Arsenic","value":"1.4","value_num":1.4,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["(a) Table UTS identifies the hazardous constituents, along with the nonwastewater and wastewater treatment standard levels, that are used to regulate most prohibited hazardous wastes with numerical limits. For determining compliance with treatment standards for underlying hazardous constituents as defined in § 268.2(i), these treatment standards may not be exceeded. Compliance with these treatment standards is measured by an analysis of grab samples, unless otherwise noted in the following Table UTS."],"cite":{"instrument":"us_40cfr268_48","title":"40 CFR 268.48 — Universal treatment standards: Table UTS, wastewater and nonwastewater treatment standards for the hazardous constituents of land-disposal-restricted wastes","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 268.48 as of 2026-10-13 (title 40 up to date as of that day; source note: 59 FR 48103, Sept. 19, 1994, as last amended at 76 FR 34156, June 13, 2011)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=268&section=268.48","source_sha256":"70b2e58a6b1e228e2c204acc69b69fab0d5a0347e35d569959073c3dc3ee4adb","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 268.48, Table UTS, Inorganic Constituents, wastewater standard","page":null,"quote":"Arsenic 7440-38-2 1.4 5.0 mg/l TCLP"}},{"id":"23b452588765fdad","parameter":"Arsenic","value":"5.0 mg/l TCLP","value_num":5,"unit":"mg/L TCLP","statistic":"instant","direction":"max","kind":"limit","medium":"leachate","level":"national","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["(a) Table UTS identifies the hazardous constituents, along with the nonwastewater and wastewater treatment standard levels, that are used to regulate most prohibited hazardous wastes with numerical limits. For determining compliance with treatment standards for underlying hazardous constituents as defined in § 268.2(i), these treatment standards may not be exceeded. Compliance with these treatment standards is measured by an analysis of grab samples, unless otherwise noted in the following Table UTS."],"cite":{"instrument":"us_40cfr268_48","title":"40 CFR 268.48 — Universal treatment standards: Table UTS, wastewater and nonwastewater treatment standards for the hazardous constituents of land-disposal-restricted wastes","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 268.48 as of 2026-10-13 (title 40 up to date as of that day; source note: 59 FR 48103, Sept. 19, 1994, as last amended at 76 FR 34156, June 13, 2011)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=268&section=268.48","source_sha256":"70b2e58a6b1e228e2c204acc69b69fab0d5a0347e35d569959073c3dc3ee4adb","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 268.48, Table UTS, Inorganic Constituents, nonwastewater standard","page":null,"quote":"Arsenic 7440-38-2 1.4 5.0 mg/l TCLP"}},{"id":"10ce38e3a1e24b12","parameter":"Arsenic","value":"0.0028","value_num":0.0028,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AB—Boric Acid Production Subcategory","existing sources (BPT)","table: Subpart AB—Boric Acid Mined Borax Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.282 (BPT)","page":null,"quote":"Arsenic 0.0028 0.0014"}},{"id":"e7aa0eb80ced1a79","parameter":"Arsenic","value":"0.0014","value_num":0.0014,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AB—Boric Acid Production Subcategory","existing sources (BPT)","table: Subpart AB—Boric Acid Mined Borax Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.282 (BPT)","page":null,"quote":"Arsenic 0.0028 0.0014"}},{"id":"d85505630132fd04","parameter":"Arsenic (T)","value":"3.0","value_num":3,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","existing sources (BPT)","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.672 (BPT)","page":null,"quote":"Arsenic (T) 3.0 1.0"}},{"id":"6fddf606cf5a4f5c","parameter":"Arsenic (T)","value":"1.0","value_num":1,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","existing sources (BPT)","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.672 (BPT)","page":null,"quote":"Arsenic (T) 3.0 1.0"}},{"id":"69a7289126d21d9f","parameter":"Arsenic (T)","value":"3.0","value_num":3,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","existing sources (BAT)","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.673 (BAT)","page":null,"quote":"Arsenic (T) 3.0 1.0"}},{"id":"a2e2255d77c4910d","parameter":"Arsenic (T)","value":"1.0","value_num":1,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","existing sources (BAT)","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.673 (BAT)","page":null,"quote":"Arsenic (T) 3.0 1.0"}},{"id":"5487bb193ee472a3","parameter":"Arsenic (T)","value":"3.0","value_num":3,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","existing sources (PSES)","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.674 (PSES)","page":null,"quote":"Arsenic (T) 3.0 1.0"}},{"id":"822660b4b2d41d04","parameter":"Arsenic (T)","value":"1.0","value_num":1,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","existing sources (PSES)","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.674 (PSES)","page":null,"quote":"Arsenic (T) 3.0 1.0"}},{"id":"a7a75c612965ce37","parameter":"Arsenic (T)","value":"3.0","value_num":3,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BO—Zinc Chloride Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart BO—Zinc Chloride"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 415.675 (NSPS)","page":null,"quote":"Arsenic (T) 3.0 1.0."}},{"id":"55bd83fbce8453f9","parameter":"Arsenic","value":".692","value_num":0.692,"unit":"mg/kg (pounds per million pounds) of copper cast","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(a) Subpart E—Casting Contact Cooling.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .692 .309"}},{"id":"bd6c1bac4f0b0565","parameter":"Arsenic","value":".309","value_num":0.309,"unit":"mg/kg (pounds per million pounds) of copper cast","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(a) Subpart E—Casting Contact Cooling.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .692 .309"}},{"id":"e8ae735e0f11cf63","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(b) Subpart E—Anode and Cathode Rinse.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .000 .000"}},{"id":"bd65104ec3fdc6e8","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(b) Subpart E—Anode and Cathode Rinse.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .000 .000"}},{"id":"77b3a4f99f2e96a6","parameter":"Arsenic","value":".068","value_num":0.068,"unit":"mg/kg (pounds per million pounds) of copper cathode production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(c) Subpart E—Spent Electrolyte.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .068 .031"}},{"id":"3bfe2f99d007406e","parameter":"Arsenic","value":".031","value_num":0.031,"unit":"mg/kg (pounds per million pounds) of copper cathode production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(c) Subpart E—Spent Electrolyte.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .068 .031"}},{"id":"03b6b3d4f821024e","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of casting production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(d) Subpart E—Casting Wet Air Pollution Control.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .000 .000"}},{"id":"527fea9449c591f6","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of casting production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(d) Subpart E—Casting Wet Air Pollution Control.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .000 .000"}},{"id":"b7c77b891623af67","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(e) Subpart E—By-Product Recovery.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .000 .000"}},{"id":"0f91575cd889afb3","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","existing sources (BAT)","(e) Subpart E—By-Product Recovery.","table: BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.53 (BAT)","page":null,"quote":"Arsenic .000 .000"}},{"id":"72f23484c7b2f9d6","parameter":"Arsenic","value":".692","value_num":0.692,"unit":"mg/kg (pounds per million pounds) of copper cast","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(a) Subpart E—Casting Contact Cooling.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .692 .309"}},{"id":"9fbed9e85cb00bcd","parameter":"Arsenic","value":".309","value_num":0.309,"unit":"mg/kg (pounds per million pounds) of copper cast","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(a) Subpart E—Casting Contact Cooling.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .692 .309"}},{"id":"cb32624ac96240fb","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(b) Subpart E—Anode and Cathode Rinse.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"0d540255c79182ab","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(b) Subpart E—Anode and Cathode Rinse.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"1e8ffcddf1000b1b","parameter":"Arsenic","value":".068","value_num":0.068,"unit":"mg/kg (pounds per million pounds) of copper cathode production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(c) Subpart E—Spent Electrolyte.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .068 .031"}},{"id":"fa83b81b02fa85ba","parameter":"Arsenic","value":".031","value_num":0.031,"unit":"mg/kg (pounds per million pounds) of copper cathode production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(c) Subpart E—Spent Electrolyte.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .068 .031"}},{"id":"95c8ea14a97de8e0","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of casting production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(d) Subpart E—Casting Wet Air Pollution Control.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"d49b5c6208c1f98a","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of casting production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(d) Subpart E—Casting Wet Air Pollution Control.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"d910cca40d8efd71","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(e) Subpart E—By-Product Recovery.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"6783f62d5d7772c7","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (NSPS)","(e) Subpart E—By-Product Recovery.","table: NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.54 (NSPS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"f65832080bc124b6","parameter":"Arsenic","value":".692","value_num":0.692,"unit":"mg/kg (pounds per million pounds) of copper cast","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(a) Subpart E—Casting Contact Cooling.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .692 .309"}},{"id":"12a50162d8cf0558","parameter":"Arsenic","value":".309","value_num":0.309,"unit":"mg/kg (pounds per million pounds) of copper cast","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(a) Subpart E—Casting Contact Cooling.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .692 .309"}},{"id":"451652b932db1d1e","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(b) Subpart E—Anode and Cathode Rinse.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"32d825b41a41d531","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(b) Subpart E—Anode and Cathode Rinse.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"96a34cf81e513792","parameter":"Arsenic","value":".068","value_num":0.068,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(c) Subpart E—Spent Electrolyte.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .068 .031"}},{"id":"f422c19eac0edd3a","parameter":"Arsenic","value":".031","value_num":0.031,"unit":"mg/kg (pounds per million pounds) of cathode copper production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(c) Subpart E—Spent Electrolyte.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .068 .031"}},{"id":"7cf5aa968065fd07","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of casting production","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(d) Subpart E—Casting Wet Air Pollution Control.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"bc1a4bdb5f0b55b3","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of casting production","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(d) Subpart E—Casting Wet Air Pollution Control.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"23427f9a7dd21699","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(e) Subpart E—By-Product Recovery.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"ab817995fb22164f","parameter":"Arsenic","value":".000","value_num":0,"unit":"mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart E—Primary Electrolytic Copper Refining Subcategory","new sources (PSNS)","(e) Subpart E—By-Product Recovery.","table: PSNS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.56 (PSNS)","page":null,"quote":"Arsenic .000 .000"}},{"id":"70a73ecc43d86311","parameter":"As","value":"0.0016","value_num":0.0016,"unit":"(1) English Units (pounds per 1,000 pounds of product)","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart H—Primary Zinc Subcategory","existing sources (BPT)","table: Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.82 (BPT)","page":null,"quote":"As 0.0016 0.0008"}},{"id":"f88912c6e52501e9","parameter":"As","value":"0.0008","value_num":0.0008,"unit":"(1) English Units (pounds per 1,000 pounds of product)","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart H—Primary Zinc Subcategory","existing sources (BPT)","table: Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.82 (BPT)","page":null,"quote":"As 0.0016 0.0008"}},{"id":"4f60b884ce856106","parameter":"Arsenic","value":"3.550","value_num":3.55,"unit":"mg/kg (pounds per/million pounds) of 100 pct sulfuric acid capacity","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart I—Metallurgical Acid Plants Subcategory","existing sources (BAT)","table: Subpart I—Metallurgical Acid Plant—BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.93 (BAT)","page":null,"quote":"Arsenic 3.550 1.584"}},{"id":"f250874e0b08cc51","parameter":"Arsenic","value":"1.584","value_num":1.584,"unit":"mg/kg (pounds per/million pounds) of 100 pct sulfuric acid capacity","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart I—Metallurgical Acid Plants Subcategory","existing sources (BAT)","table: Subpart I—Metallurgical Acid Plant—BAT Effluent Limitations"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.93 (BAT)","page":null,"quote":"Arsenic 3.550 1.584"}},{"id":"7751f50bdfd7f7f1","parameter":"Arsenic","value":"3.550","value_num":3.55,"unit":"mg/kg (pounds per/million pounds) of 100 pct sulfuric acid capacity","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-38-2","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart I—Metallurgical Acid Plants Subcategory","new sources (NSPS)","Any new source subject to this subpart shall achieve the following new source performance standards:","table: Subpart I—Metallurgical Acid Plant—NSPS"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 421.94 (NSPS)","page":null,"quote":"Arsenic 3.550 1.584"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-ND"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"arsenic\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-ND"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}