{"query":{"parameter":"antimony","place":"US-AK","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-AK","US"],"parameter_keys":["cas:7440-36-0","name:antimony-122","name:antimony-124","name:antimony-125","cas:1332-81-6","cas:1314-60-9","name:antimony, total","cas:1309-64-4"],"names_matched":[["antimony","cas:7440-36-0"],["antimony 122","name:antimony-122"],["antimony 124","name:antimony-124"],["antimony 125","name:antimony-125"],["antimony oxide sb2o4","cas:1332-81-6"],["antimony oxide sb2o5","cas:1314-60-9"],["antimony pentoxide","cas:1314-60-9"],["antimony tetroxide","cas:1332-81-6"],["antimony total","name:antimony, total"],["antimony trioxide","cas:1309-64-4"]],"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":389,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"2c6e6db3cd44b286","parameter":"Antimony","value":"6","value_num":6,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-36-0","place":["US-AK"],"conditions":["fresh water designated for water supply: drinking, culinary and food processing (18 AAC 70.020(b))"],"cite":{"instrument":"us_ak_wqs","title":"Alaska Water Quality Criteria Manual for Toxic and Other Deleterious Organic and Inorganic Substances (fresh and marine aquatic life, human health, water supply), with 18 AAC 70.020(b) dissolved inorganic substances and marine salinity","issuer":"State of Alaska, Department of Environmental Conservation","edition":"Toxics Manual as amended through September 8, 2022, adopted by reference in 18 AAC 70, as US EPA posts it in effect for CWA purposes (effective April 14, 2023; cover April 24, 2023); 18 AAC 70 as EPA posts it effective January 8, 2026 (rows from it name their own source)","source_url":"https://www.epa.gov/system/files/documents/2023-05/akwqs-toxics-manual.pdf","source_sha256":"c835973dac59a2b48a376b34d11333eba7ff7a0f024cee0864e42470a2283b37","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Alaska Toxics Manual (2022), Table of criteria","page":9,"quote":null}},{"id":"3dae71539b6fba6a","parameter":"Antimony","value":"14 5","value_num":14,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-36-0","place":["US-AK"],"conditions":["fresh water designated for drinking water supply and harvesting aquatic life for consumption"],"cite":{"instrument":"us_ak_wqs","title":"Alaska Water Quality Criteria Manual for Toxic and Other Deleterious Organic and Inorganic Substances (fresh and marine aquatic life, human health, water supply), with 18 AAC 70.020(b) dissolved inorganic substances and marine salinity","issuer":"State of Alaska, Department of Environmental Conservation","edition":"Toxics Manual as amended through September 8, 2022, adopted by reference in 18 AAC 70, as US EPA posts it in effect for CWA purposes (effective April 14, 2023; cover April 24, 2023); 18 AAC 70 as EPA posts it effective January 8, 2026 (rows from it name their own source)","source_url":"https://www.epa.gov/system/files/documents/2023-05/akwqs-toxics-manual.pdf","source_sha256":"c835973dac59a2b48a376b34d11333eba7ff7a0f024cee0864e42470a2283b37","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Alaska Toxics Manual (2022), Table of criteria","page":9,"quote":null}},{"id":"9f4e922e451ab0dc","parameter":"Antimony","value":"4,300 5","value_num":4300,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-36-0","place":["US-AK"],"conditions":["waters where aquatic life is harvested for consumption"],"cite":{"instrument":"us_ak_wqs","title":"Alaska Water Quality Criteria Manual for Toxic and Other Deleterious Organic and Inorganic Substances (fresh and marine aquatic life, human health, water supply), with 18 AAC 70.020(b) dissolved inorganic substances and marine salinity","issuer":"State of Alaska, Department of Environmental Conservation","edition":"Toxics Manual as amended through September 8, 2022, adopted by reference in 18 AAC 70, as US EPA posts it in effect for CWA purposes (effective April 14, 2023; cover April 24, 2023); 18 AAC 70 as EPA posts it effective January 8, 2026 (rows from it name their own source)","source_url":"https://www.epa.gov/system/files/documents/2023-05/akwqs-toxics-manual.pdf","source_sha256":"c835973dac59a2b48a376b34d11333eba7ff7a0f024cee0864e42470a2283b37","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Alaska Toxics Manual (2022), Table of criteria","page":9,"quote":null}},{"id":"711be53dfd38af1e","parameter":"Antimony","value":"1.9","value_num":1.9,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:7440-36-0","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","section":"40 CFR 268.48, Table UTS, Inorganic Constituents, wastewater standard","page":null,"quote":"Antimony 7440-36-0 1.9 1.15 mg/l TCLP"}},{"id":"2273032396effd79","parameter":"Antimony","value":"1.15 mg/l TCLP","value_num":1.15,"unit":"mg/L TCLP","statistic":"instant","direction":"max","kind":"limit","medium":"leachate","level":"national","parameter_key":"cas:7440-36-0","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","section":"40 CFR 268.48, Table UTS, Inorganic Constituents, nonwastewater standard","page":null,"quote":"Antimony 7440-36-0 1.9 1.15 mg/l TCLP"}},{"id":"7add8daef8f889b6","parameter":"Antimony (T)","value":"0.0086","value_num":0.0086,"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:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","existing sources (BPT)","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.662 (BPT)","page":null,"quote":"Antimony (T) 0.0086 0.0043"}},{"id":"fe8d182baa5d20b7","parameter":"Antimony (T)","value":"0.0043","value_num":0.0043,"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:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","existing sources (BPT)","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.662 (BPT)","page":null,"quote":"Antimony (T) 0.0086 0.0043"}},{"id":"58b30ca6cea6e5b7","parameter":"Antimony (T)","value":"0.0043","value_num":0.0043,"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:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","existing sources (BAT)","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.663 (BAT)","page":null,"quote":"Antimony (T) 0.0043 0.0022"}},{"id":"b86a5f26374d9f13","parameter":"Antimony (T)","value":"0.0022","value_num":0.0022,"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:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","existing sources (BAT)","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.663 (BAT)","page":null,"quote":"Antimony (T) 0.0043 0.0022"}},{"id":"6bff6df73c50deee","parameter":"Antimony (T)","value":"0.0043","value_num":0.0043,"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:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.665 (NSPS)","page":null,"quote":"Antimony (T) 0.0043 0.0022"}},{"id":"14b494880b069fcd","parameter":"Antimony (T)","value":"0.0022","value_num":0.0022,"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:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.665 (NSPS)","page":null,"quote":"Antimony (T) 0.0043 0.0022"}},{"id":"6c770df37bad51bf","parameter":"Antimony (T)","value":"1.6","value_num":1.6,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","new sources (PSNS)","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.666 (PSNS)","page":null,"quote":"Antimony (T) 1.6 0.8"}},{"id":"5fb8a9dade015558","parameter":"Antimony (T)","value":"0.8","value_num":0.8,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart BN—Sodium Chlorate Production Subcategory","new sources (PSNS)","table: Subpart BN—Sodium Chlorate"],"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":"unchanged"},"section":"40 CFR 415.666 (PSNS)","page":null,"quote":"Antimony (T) 1.6 0.8"}},{"id":"f9911a04c1d453ec","parameter":"Antimony","value":".263","value_num":0.263,"unit":"mg/kg (pounds per million pounds) of paste produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(a) Subpart B—Anode and Cathode Paste Plant 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 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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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony .263 .117"}},{"id":"63c1c5b54fcefc78","parameter":"Antimony","value":".403","value_num":0.403,"unit":"mg/kg (pounds per million pounds) of anodes cast","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(b) Subpart (B)—Anode Contact Cooling and Briquette Quenching.","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony .403 .180"}},{"id":"1a59da072faf478d","parameter":"Antimony","value":".180","value_num":0.18,"unit":"mg/kg (pounds per million pounds) of anodes cast","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(b) Subpart (B)—Anode Contact Cooling and Briquette Quenching.","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony .403 .180"}},{"id":"22bfb365def9072a","parameter":"Antimony","value":"8.346","value_num":8.346,"unit":"mg/kg (pounds per million pounds) of anodes baked","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(c) Subpart (B)—Anode Bake Plant Wet Air Pollution Control (Closed Top Ring Furnace).","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony 8.346 3.719"}},{"id":"3ff96851c03695ae","parameter":"Antimony","value":"3.719","value_num":3.719,"unit":"mg/kg (pounds per million pounds) of anodes baked","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(c) Subpart (B)—Anode Bake Plant Wet Air Pollution Control (Closed Top Ring Furnace).","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony 8.346 3.719"}},{"id":"870730e69f491886","parameter":"Antimony","value":".097","value_num":0.097,"unit":"mg/kg (pounds per million pounds) of anodes baked","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(d) Subpart B—Anode Bake Plant Wet Air Pollution Control (Open Top Ring Furnace With Spray Tower Only).","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony .097 .043"}},{"id":"9020dce67fcefda6","parameter":"Antimony","value":".043","value_num":0.043,"unit":"mg/kg (pounds per million pounds) of anodes baked","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(d) Subpart B—Anode Bake Plant Wet Air Pollution Control (Open Top Ring Furnace With Spray Tower Only).","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony .097 .043"}},{"id":"e7974dfb20c4f22f","parameter":"Antimony","value":"1.409","value_num":1.409,"unit":"mg/kg (pounds per million pounds) of anodes baked","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(e) Subpart B—Anode Bake Plant Wet Air Pollution Control (Open Top Ring Furnace With Wet Electrostatic Precipitator and Spray Tower).","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony 1.409 .628"}},{"id":"8fb82b413d0dd03a","parameter":"Antimony","value":".628","value_num":0.628,"unit":"mg/kg (pounds per million pounds) of anodes 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(BAT)","page":null,"quote":"Antimony 1.409 .628"}},{"id":"4a83ccb0c0742da1","parameter":"Antimony","value":"2.197","value_num":2.197,"unit":"mg/kg (pounds per million pounds) of anodes baked","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(f) Subpart B—Anode Bake Plant Wet Air Pollution Control (Tunnel Kiln).","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 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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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony 2.197 .979"}},{"id":"b1bbefbae593f5e9","parameter":"Antimony","value":"420.400","value_num":420.4,"unit":"mg/kg (pounds per million pounds) of cryolite recovered","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(g) Subpart B—Cathode Reprocessing (Operated With 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(BAT)","page":null,"quote":"Antimony 420.400 189.200"}},{"id":"cb2ec0d7ae2c3c49","parameter":"Antimony","value":"67.610","value_num":67.61,"unit":"mg/kg (pounds per million pounds) of cryolite recovered","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(h) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).","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 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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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony 67.610 30.120"}},{"id":"33ca20f21cb059f4","parameter":"Antimony","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of cryolite recovered","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(i) Subpart B—Cathode Reprocessing (Operated With Wet Potline Scrubbing).","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":"unchanged"},"section":"40 CFR 421.23 (BAT)","page":null,"quote":"Antimony .000 .000"}},{"id":"3c88267964bc7d8d","parameter":"Antimony","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of cryolite 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.000"}},{"id":"8002e85b488b6622","parameter":"Antimony","value":"1.618","value_num":1.618,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-36-0","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BAT)","(j) Subpart B—Potline Wet Air Pollution Control (Operated Without Cathode Reprocessing).","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 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