{"query":{"parameter":"fluoride","place":"US-IL","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-IL","US"],"parameter_keys":["cas:16984-48-8","cas:7681-49-4","cas:7782-41-4","name:fluoride @ 90°f","cas:7664-39-3","name:fluorures totaux"],"names_matched":[["fluoride","cas:16984-48-8"],["fluoride","cas:7681-49-4"],["fluoride","cas:7782-41-4"],["fluoride 90 f","name:fluoride @ 90°f"],["hydrogen fluoride","cas:7664-39-3"],["fluor und seine gasformigen anorganischen verbindungen angegeben als fluorwasserstoff","cas:7664-39-3","fluor"],["fluor und seine gasformigen verbindungen angegeben als fluorwasserstoff","cas:7664-39-3","fluor"],["fluorwasserstoff und gasformige anorganische fluorverbindungen angegeben als fluor","cas:7664-39-3","fluor"],["fluorides as hf","cas:7664-39-3","fluorides"],["fluorides as hf gaseous growing season","cas:7664-39-3","fluorides"],["fluorides as hf total growing season","cas:7664-39-3","fluorides"],["fluorides as hf total non growing season","cas:7664-39-3","fluorides"],["gaseous fluorides expressed as hf","cas:7664-39-3","fluorides"],["fluorures totaux","name:fluorures totaux","fluorures"],["fluorures totaux f","name:fluorures totaux","fluorures"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":1569,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"dc5a3ab3144d7d49","parameter":"Fluoride (total)","value":"e^(A + B ln(H)), A = 6.7319, B = 0.5394","unit":"µg/L","statistic":"instant","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","General Use waters: waters of the State for which there is no specific designation (35 Ill. Adm. Code 302.201)","hardness-dependent: the row's equation of the receiving water's hardness (mg/L as CaCO3), with A and B as printed; * = conversion factor for dissolved metals"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.208(e)","page":24,"quote":"Fluoride (total) eA+Bln(H) eA+Bln(H) , but shall not exceed 4.0 mg/L where A = 6.7319 and where A = 6.0445 and B = 0.5394 B = 0.5394"}},{"id":"753e77f75d2abe18","parameter":"Fluoride (total)","value":"e^(A + B ln(H)), A = 6.0445, B = 0.5394","unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","General Use waters: waters of the State for which there is no specific designation (35 Ill. Adm. Code 302.201)","hardness-dependent: the row's equation of the receiving water's hardness (mg/L as CaCO3), with A and B as printed; * = conversion factor for dissolved metals"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.208(e)","page":24,"quote":"Fluoride (total) eA+Bln(H) eA+Bln(H) , but shall not exceed 4.0 mg/L where A = 6.7319 and where A = 6.0445 and B = 0.5394 B = 0.5394"}},{"id":"f0c5b4df48675351","parameter":"Fluoride (total)","value":"4.0 mg/L","value_num":4,"unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","General Use waters: waters of the State for which there is no specific designation (35 Ill. Adm. Code 302.201)"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.208(e)","page":24,"quote":"but shall not exceed 4.0 mg/L"}},{"id":"fcda17b38cee87d9","parameter":"Fluoride (total)","value":"1.4","value_num":1.4,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","at any point at which water is withdrawn for treatment and distribution as a potable supply or for food processing (35 Ill. Adm. Code 302.301)"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.304","page":36,"quote":"Fluoride (total) 1.4"}},{"id":"f269b1543c3ec1f6","parameter":"Fluoride (total)","value":"e^(A + B ln(H)), A = 6.7319, B = 0.5394","unit":"µg/L","statistic":"instant","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","waters of the Lake Michigan Basin (35 Ill. Adm. Code 303.443)","hardness-dependent: the row's equation of the receiving water's hardness (mg/L as CaCO3), with A and B as printed; * = conversion factor for dissolved metals"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.504(a)","page":60,"quote":"Fluoride (total) µg/L exp[ A+Bln( H)] exp[ A+Bln( H)], NA but shall not where A = 6.7319 exceed 4.0 mg/L and B = 0.5394 where A = 6.0445 and B = 0.5394"}},{"id":"6aa056c2116abc1f","parameter":"Fluoride (total)","value":"e^(A + B ln(H)), A = 6.0445, B = 0.5394","unit":"µg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","waters of the Lake Michigan Basin (35 Ill. Adm. Code 303.443)","hardness-dependent: the row's equation of the receiving water's hardness (mg/L as CaCO3), with A and B as printed; * = conversion factor for dissolved metals"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.504(a)","page":60,"quote":"Fluoride (total) µg/L exp[ A+Bln( H)] exp[ A+Bln( H)], NA but shall not where A = 6.7319 exceed 4.0 mg/L and B = 0.5394 where A = 6.0445 and B = 0.5394"}},{"id":"a2a9c94ab916f131","parameter":"Fluoride (total)","value":"4.0 mg/L","value_num":4,"unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","waters of the Lake Michigan Basin (35 Ill. Adm. Code 303.443)"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.504(a)","page":60,"quote":"Fluoride (total) µg/L exp[ A+Bln( H)] exp[ A+Bln( H)], NA but shall not where A = 6.7319 exceed 4.0 mg/L and B = 0.5394 where A = 6.0445 and B = 0.5394"}},{"id":"9bdba149a4755857","parameter":"Fluoride (total)","value":"1.4","value_num":1.4,"unit":"mg/L","statistic":"instant","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16984-48-8","place":["US-IL"],"conditions":["receiving_water is freshwater","waters of the Lake Michigan Basin (35 Ill. Adm. Code 303.443)","the Open Waters of Lake Michigan (35 Ill. Adm. Code 302.501)"],"cite":{"instrument":"us_il_wqs","title":"Illinois 35 Ill. Adm. Code 302 Water Quality Standards: general use (Subpart B), public and food processing water supply (Subpart C) and Lake Michigan Basin (Subpart E) numeric standards","issuer":"State of Illinois, Pollution Control Board","edition":"35 Ill. Adm. Code Part 302 effective June 24, 2019, as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2019-11/documents/ilwqs-title35-part302.pdf","source_sha256":"5e0bbfc56069872e1b0fbe1ed98672de1c3b2fda558ded29028800410f829b13","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"35 Ill. Adm. Code 302.504(c)","page":62,"quote":"Fluoride (total) mg/L 1.4"}},{"id":"90b355b89825f281","parameter":"Fluoride","value":"35","value_num":35,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:16984-48-8","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":"Fluoride 5 16984-48-8 35 NA"}},{"id":"5755018f973ffbee","parameter":"Fluoride (T)","value":"6.1","value_num":6.1,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","existing sources (BPT)","table: Subpart H—Hydrofluoric Acid"],"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 415.82 (BPT)","page":null,"quote":"Fluoride (T) 6.1 2.9"}},{"id":"c7d32fa29b642d12","parameter":"Fluoride (T)","value":"2.9","value_num":2.9,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","existing sources (BPT)","table: Subpart H—Hydrofluoric Acid"],"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 415.82 (BPT)","page":null,"quote":"Fluoride (T) 6.1 2.9"}},{"id":"8aa8fae40c3861ae","parameter":"Fluoride (T)","value":"3.4","value_num":3.4,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","existing sources (BAT)","table: Subpart H—Hydrofluoric Acid"],"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 415.83 (BAT)","page":null,"quote":"Fluoride (T) 3.4 1.6"}},{"id":"8d8037e5a3fc8de5","parameter":"Fluoride (T)","value":"1.6","value_num":1.6,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","existing sources (BAT)","table: Subpart H—Hydrofluoric Acid"],"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 415.83 (BAT)","page":null,"quote":"Fluoride (T) 3.4 1.6"}},{"id":"944f2f7db3e99413","parameter":"Fluoride (T)","value":"3.4","value_num":3.4,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart H—Hydrofluoric Acid"],"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 415.85 (NSPS)","page":null,"quote":"Fluoride (T) 3.4 1.6"}},{"id":"c97d760f0e4660cf","parameter":"Fluoride (T)","value":"1.6","value_num":1.6,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart H—Hydrofluoric Acid"],"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 415.85 (NSPS)","page":null,"quote":"Fluoride (T) 3.4 1.6"}},{"id":"b8673007a19d77b4","parameter":"Fluoride (T)","value":"100","value_num":100,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:16984-48-8","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","new sources (PSNS)","table: Subpart H—Hydrofluoric Acid"],"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 415.86 (PSNS)","page":null,"quote":"Fluoride (T) 100 50"}},{"id":"9bdce9ea67024f50","parameter":"Fluoride (T)","value":"50","value_num":50,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:16984-48-8","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart H—Hydrofluoric Acid Production Subcategory","new sources (PSNS)","table: Subpart H—Hydrofluoric Acid"],"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 415.86 (PSNS)","page":null,"quote":"Fluoride (T) 100 50"}},{"id":"c99eee425ed0a18a","parameter":"Fluoride (T)","value":"1.3","value_num":1.3,"unit":"Kg/kkg (or pounds per 1,000 lb) of 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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":"Fluoride 257.300 114.200"}},{"id":"bd70de9aed434bb3","parameter":"Fluoride","value":"2.975","value_num":2.975,"unit":"mg/kg (pounds per million pounds) of anodes 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2.975 1.320"}},{"id":"d1e5d91e255886d4","parameter":"Fluoride","value":"1.320","value_num":1.32,"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:16984-48-8","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 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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":"Fluoride 43.440 19.270"}},{"id":"5636734529de525c","parameter":"Fluoride","value":"19.270","value_num":19.27,"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:16984-48-8","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting 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