{"query":{"parameter":"antimony","place":"US-WA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-WA","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"},"total":386,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"c5db48a9fdc88ba4","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-WA"],"conditions":["all surface waters of the state with fish harvesting, recreation or (water & organisms) domestic water supply uses; human health criteria apply in fresh and marine waters alike (WAC 173-201A-240(5)(b))"],"cite":{"instrument":"us_wa_wqs","title":"Washington WAC 173-201A Water Quality Standards for Surface Waters: Table 240 toxic substances (aquatic life fresh and marine acute/chronic; human health), fresh water dissolved oxygen, marine temperature, dissolved oxygen and pH","issuer":"State of Washington, Department of Ecology","edition":"aquatic life: WAC 173-201A-240(5)(b) Table 240 as US EPA posts it in effect for CWA purposes (effective December 20, 2024; WAC print of 9/12/2023); human health: the WAC page as served 2026-10-14 (WSR 24-24-056, effective 12/28/24), which EPA's posting names as the human health criteria in effect; WAC 173-201A-210 as served 2026-10-14","source_url":"https://www.epa.gov/system/files/documents/2025-03/wa_wqs_0011_122024.pdf","source_sha256":"3d3172a99e8699f8bd484471dbf9dddad02001e806dc0efc15562047ae07c895","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"WAC 173-201A-240(5)(b) Table 240 (human health)","page":null,"quote":"Antimony 7440360 - - - - 6 90"}},{"id":"709a3114d0a38344","parameter":"Antimony","value":"90","value_num":90,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7440-36-0","place":["US-WA"],"conditions":["all surface waters of the state with fish harvesting, recreation or (water & organisms) domestic water supply uses; human health criteria apply in fresh and marine waters alike (WAC 173-201A-240(5)(b))"],"cite":{"instrument":"us_wa_wqs","title":"Washington WAC 173-201A Water Quality Standards for Surface Waters: Table 240 toxic substances (aquatic life fresh and marine acute/chronic; human health), fresh water dissolved oxygen, marine temperature, dissolved oxygen and pH","issuer":"State of Washington, Department of Ecology","edition":"aquatic life: WAC 173-201A-240(5)(b) Table 240 as US EPA posts it in effect for CWA purposes (effective December 20, 2024; WAC print of 9/12/2023); human health: the WAC page as served 2026-10-14 (WSR 24-24-056, effective 12/28/24), which EPA's posting names as the human health criteria in effect; WAC 173-201A-210 as served 2026-10-14","source_url":"https://www.epa.gov/system/files/documents/2025-03/wa_wqs_0011_122024.pdf","source_sha256":"3d3172a99e8699f8bd484471dbf9dddad02001e806dc0efc15562047ae07c895","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"WAC 173-201A-240(5)(b) Table 240 (human health)","page":null,"quote":"Antimony 7440360 - - - - 6 90"}},{"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 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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 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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 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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 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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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