{"query":{"parameter":"chlorine","place":"US-UT","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-UT","US"],"parameter_keys":["cas:7782-50-5","name:chlorine,","name:chlorine demand","cas:10049-04-4","name:chlorine, reactive species","cas:7790-91-2","name:free available chlorine","name:free residual chlorine","name:total chlorine residual","cas:88-73-3","cas:100-00-5","name:chlor, freies","name:chlordioxid und andere oxidantien","name:volatile halogenated hydrocarbons","cas:121-73-3","name:cloro attivo","name:cloro attivo libero","name:cloro residuo","cas:7647-01-0","name:chlore residuel total","cas:108171-26-2"],"names_matched":[["chlorine","cas:7782-50-5"],["chlorine","name:chlorine,"],["chlorine demand","name:chlorine demand"],["chlorine dioxide","cas:10049-04-4"],["chlorine reactive species","name:chlorine, reactive species"],["chlorine trifluoride","cas:7790-91-2"],["free available chlorine","name:free available chlorine"],["free residual chlorine","name:free residual chlorine"],["total chlorine residual","name:total chlorine residual"],["1 chlor 2 nitrobenzol","cas:88-73-3","chlor"],["1 chlor 4 nitrobenzol","cas:100-00-5","chlor"],["chlor freies","name:chlor, freies","chlor"],["chlordioxid und andere oxidantien angegeben als chlor","name:chlordioxid und andere oxidantien","chlor"],["lhkw summe aus trichlorethen tetrachlorethen 1 1 1 trichlorethan dichlormethan gerechnet als chlor","name:volatile halogenated hydrocarbons","chlor"],["1 cloro 2 nitrobenzene","cas:88-73-3","cloro"],["1 cloro 3 nitrobenzene","cas:121-73-3","cloro"],["1 cloro 4 nitrobenzene","cas:100-00-5","cloro"],["cloro attivo","name:cloro attivo","cloro"],["cloro attivo libero","name:cloro attivo libero","cloro"],["cloro residual libre","name:free residual chlorine","cloro"],["cloro residuo","name:cloro residuo","cloro"],["composti inorganici del cloro sotto forma di gas o vapore esclusi clorocianuro e fosgene espressi come acido cloridrico","cas:7647-01-0","cloro"],["chlore dioxyde de","cas:10049-04-4","chlore"],["chlore residuel total","name:chlore residuel total","chlore"],["chlore trifluorure de","cas:7790-91-2","chlore"],["paraffines chlorees c12 60 chlore","cas:108171-26-2","chlore"]],"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","not_sent":{"rows":11,"names":["Chloronitrobenzene, o-","Chloronitrobenzene, p-","Hydrogen Chloride"],"says":"11 rows share a parameter key with a longer name holding \"chlorine\" but are printed under names without these words (that key is wider than the name): not sent. Ask for one by its name or CAS number."}},"total":65,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"9a1db246ac4f4751","parameter":"Chlorine (Total Residual)","value":"0.011","value_num":0.011,"unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3A: cold water species of game fish and other cold water aquatic life (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"Chlorine (Total Residual) 4 Day Average 0.011 0.011 0.011 0.011"}},{"id":"6dd461fa9042e86e","parameter":"Chlorine (Total Residual)","value":"0.011","value_num":0.011,"unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3B: warm water species of game fish and other warm water aquatic life (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"Chlorine (Total Residual) 4 Day Average 0.011 0.011 0.011 0.011"}},{"id":"37080206fa37db5f","parameter":"Chlorine (Total Residual)","value":"0.011","value_num":0.011,"unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3C: nongame fish and other aquatic life (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"Chlorine (Total Residual) 4 Day Average 0.011 0.011 0.011 0.011"}},{"id":"718292538642efe3","parameter":"Chlorine (Total Residual)","value":"0.011","value_num":0.011,"unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3D: waterfowl, shore birds and other water-oriented wildlife (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"Chlorine (Total Residual) 4 Day Average 0.011 0.011 0.011 0.011"}},{"id":"4d200a260381d30a","parameter":"Chlorine (Total Residual)","value":"0.019","value_num":0.019,"unit":"mg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3A: cold water species of game fish and other cold water aquatic life (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"1 Hour Average 0.019 0.019 0.019 0.019"}},{"id":"1ece075a26356ba9","parameter":"Chlorine (Total Residual)","value":"0.019","value_num":0.019,"unit":"mg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3B: warm water species of game fish and other warm water aquatic life (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"1 Hour Average 0.019 0.019 0.019 0.019"}},{"id":"c6ae1bf847c5f86a","parameter":"Chlorine (Total Residual)","value":"0.019","value_num":0.019,"unit":"mg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3C: nongame fish and other aquatic life (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"1 Hour Average 0.019 0.019 0.019 0.019"}},{"id":"ab31cc7e4e018524","parameter":"Chlorine (Total Residual)","value":"0.019","value_num":0.019,"unit":"mg/L","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7782-50-5","place":["US-UT"],"conditions":["receiving_water is freshwater","water with the beneficial use Class 3D: waterfowl, shore birds and other water-oriented wildlife (R317-2-6; uses by water in R317-2-13)"],"cite":{"instrument":"us_ut_wqs","title":"Utah Admin. Code R317-2-14 numeric criteria: Table 2.14.2 aquatic wildlife (Classes 3A-3D, 5) and Table 2.14.6 human health","issuer":"State of Utah, Department of Environmental Quality, Division of Water Quality (Water Quality Board)","edition":"R317-2 Standards of Quality for Waters of the State as US EPA posts it (Utah DEQ's Word file, PDF of September 24, 2025)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/utwqs.pdf","source_sha256":"ecd9919716fba76ef049e55c942f1387f9a8ec133cd140000105b0554af46a38","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Utah Admin. Code R317-2-14 Table 2.14.2","page":40,"quote":"1 Hour Average 0.019 0.019 0.019 0.019"}},{"id":"1025b17cef898b5b","parameter":"Total Residual Chlorine","value":"0.0032","value_num":0.0032,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","existing sources (BAT)","table: Subpart F—Chlor-Alkali-Mercury Cells"],"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 415.63 (BAT)","page":null,"quote":"Total Residual Chlorine 0.0032 0.0019"}},{"id":"bba56a6ffde95910","parameter":"Total Residual Chlorine","value":"0.0019","value_num":0.0019,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","existing sources (BAT)","table: Subpart F—Chlor-Alkali-Mercury Cells"],"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 415.63 (BAT)","page":null,"quote":"Total Residual Chlorine 0.0032 0.0019"}},{"id":"dbbe89c278e01110","parameter":"Total Residual Chlorine","value":"0.013","value_num":0.013,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","existing sources (BAT)","table: Subpart F—Chlor-Alkali-Diaphragm Cells"],"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 415.63 (BAT)","page":null,"quote":"Total Residual Chlorine 0.013 0.0079"}},{"id":"56d9f354d00e89cb","parameter":"Total Residual Chlorine","value":"0.0079","value_num":0.0079,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","existing sources (BAT)","table: Subpart F—Chlor-Alkali-Diaphragm Cells"],"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 415.63 (BAT)","page":null,"quote":"Total Residual Chlorine 0.013 0.0079"}},{"id":"a5fca0ea3a284be7","parameter":"Total Residual Chlorine","value":"0.0032","value_num":0.0032,"unit":"Kq/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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","new sources (NSPS)","(a) Any new source subject to this subpart and using the mercury cell process must achieve the following new source performance standards (NSPS):","table: Subpart F—Chlor-Alkali-Mercury Cells"],"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 415.65 (NSPS)","page":null,"quote":"Total Residual Chlorine 0.0032 0.0019"}},{"id":"f9c3abeac431cf44","parameter":"Total Residual Chlorine","value":"0.0019","value_num":0.0019,"unit":"Kq/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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","new sources (NSPS)","(a) Any new source subject to this subpart and using the mercury cell process must achieve the following new source performance standards (NSPS):","table: Subpart F—Chlor-Alkali-Mercury Cells"],"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 415.65 (NSPS)","page":null,"quote":"Total Residual Chlorine 0.0032 0.0019"}},{"id":"e64aeac5e9de69bc","parameter":"Total Residual Chlorine","value":"0.013","value_num":0.013,"unit":"Kq/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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","new sources (NSPS)","(b) Any new source subject to this subpart and using the diaphragm cell process must achieve the following new source performance standards (NSPS):","table: Subpart F—Chlor-Alkali-Diaphragm Cells"],"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 415.65 (NSPS)","page":null,"quote":"Total Residual Chlorine 0.013 0.0079"}},{"id":"33827060605599cd","parameter":"Total Residual Chlorine","value":"0.0079","value_num":0.0079,"unit":"Kq/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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart F—Chlor-alkali Subcategory (Chlorine and Sodium or Potassium Hydroxide Production)","new sources (NSPS)","(b) Any new source subject to this subpart and using the diaphragm cell process must achieve the following new source performance standards (NSPS):","table: Subpart F—Chlor-Alkali-Diaphragm Cells"],"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 415.65 (NSPS)","page":null,"quote":"Total Residual Chlorine 0.013 0.0079"}},{"id":"f518716ad3fc3940","parameter":"Total Residual Chlorine","value":"0.086","value_num":0.086,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AP—Hydrogen Cyanide Production Subcategory","existing sources (BAT)","table: Subpart AP—Hydrogen Cyanide"],"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 415.423 (BAT)","page":null,"quote":"Total Residual Chlorine 0.086 0.051"}},{"id":"83426d3e30e49da2","parameter":"Total Residual Chlorine","value":"0.051","value_num":0.051,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AP—Hydrogen Cyanide Production Subcategory","existing sources (BAT)","table: Subpart AP—Hydrogen Cyanide"],"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 415.423 (BAT)","page":null,"quote":"Total Residual Chlorine 0.086 0.051"}},{"id":"48b10cc1fb3daf14","parameter":"Total Residual Chlorine","value":"0.086","value_num":0.086,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AP—Hydrogen Cyanide Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart AP—Hydrogen Cyanide"],"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 415.425 (NSPS)","page":null,"quote":"Total Residual Chlorine 0.086 0.051"}},{"id":"d04436693a6fb71e","parameter":"Total Residual Chlorine","value":"0.051","value_num":0.051,"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:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AP—Hydrogen Cyanide Production Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):","table: Subpart AP—Hydrogen Cyanide"],"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 415.425 (NSPS)","page":null,"quote":"Total Residual Chlorine 0.086 0.051"}},{"id":"d5ae0daca7b6fb8e","parameter":"Chlorine (total residual)","value":"0.0041","value_num":0.0041,"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:7782-50-5","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":"Chlorine (total residual) 0.0041 0.0024"}},{"id":"4ebf8079f4e677b2","parameter":"Chlorine (total residual)","value":"0.0024","value_num":0.0024,"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:7782-50-5","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":"Chlorine (total residual) 0.0041 0.0024"}},{"id":"1d8165d0a0d14fb0","parameter":"Chlorine (total residual)","value":"0.0041","value_num":0.0041,"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:7782-50-5","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":"Chlorine (total residual) 0.0041 0.0024"}},{"id":"68219fd82b653e03","parameter":"Chlorine (total residual)","value":"0.0024","value_num":0.0024,"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:7782-50-5","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":"Chlorine (total residual) 0.0041 0.0024"}},{"id":"ac6ebf7d08780c1f","parameter":"Chlorine (total residual)","value":"0.0041","value_num":0.0041,"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:7782-50-5","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":"Chlorine (total residual) 0.0041 0.0024"}},{"id":"30320495e0c2b011","parameter":"Chlorine (total residual)","value":"0.0024","value_num":0.0024,"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:7782-50-5","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":"Chlorine (total residual) 0.0041 0.0024"}},{"id":"180458aeeefaf8d6","parameter":"TRC","value":"0.000250","value_num":0.00025,"unit":"Pounds per thousand lb of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 420","the discharge is of the Subpart B—Sintering Subcategory","existing sources (BAT)","(a) Sintering operations with wet air pollution control system. The following table presents BAT limitations for sintering operations with wet air pollution control systems:","table: Subpart B—Effluent Limitations (BAT)"],"cite":{"instrument":"us_40cfr420","title":"40 CFR Part 420 — PART 420—IRON AND STEEL 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=420","source_sha256":"15d00b2386811ecfdcc8334d57defe2f690d2f88798390abff59228c5aea1898","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 420.23 (BAT)","page":null,"quote":"TRC 3 0.000250"}},{"id":"388cdf41b7481da3","parameter":"TRC","value":"0.000250","value_num":0.00025,"unit":"Pounds per thousand lb of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 420","the discharge is of the Subpart B—Sintering Subcategory","new sources (NSPS)","(1) Sintering operations with wet air pollution control system. The following table presents NSPS for sintering operations with wet air pollution control systems:","table: Subpart B—New Source Performance Standards (NSPS)"],"cite":{"instrument":"us_40cfr420","title":"40 CFR Part 420 — PART 420—IRON AND STEEL 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=420","source_sha256":"15d00b2386811ecfdcc8334d57defe2f690d2f88798390abff59228c5aea1898","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 420.24 (NSPS)","page":null,"quote":"TRC 3 0.000250"}},{"id":"38a7d6ed1cde7eff","parameter":"TRC","value":"0.000146","value_num":0.000146,"unit":"Kg/kkg (pounds per 1,000 lb) of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 420","the discharge is of the Subpart C—Ironmaking Subcategory","existing sources (BAT)","(a) Iron blast furnace.","table: Subpart C"],"cite":{"instrument":"us_40cfr420","title":"40 CFR Part 420 — PART 420—IRON AND STEEL 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=420","source_sha256":"15d00b2386811ecfdcc8334d57defe2f690d2f88798390abff59228c5aea1898","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 420.33 (BAT)","page":null,"quote":"TRC 1 0.000146"}},{"id":"e79004f5f95ddebf","parameter":"TRC","value":"0.000146","value_num":0.000146,"unit":"Kg/kkg (pounds per 1,000 lb) of products","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 420","the discharge is of the Subpart C—Ironmaking Subcategory","new sources (NSPS)","(a) Iron blast furnace.","table: Subpart C"],"cite":{"instrument":"us_40cfr420","title":"40 CFR Part 420 — PART 420—IRON AND STEEL 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=420","source_sha256":"15d00b2386811ecfdcc8334d57defe2f690d2f88798390abff59228c5aea1898","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 420.34 (NSPS)","page":null,"quote":"TRC 1 0.000146"}},{"id":"9963c1624bcbd3ec","parameter":"Total residual chlorine","value":"0.20","value_num":0.2,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BAT)","(b)(1) For any plant with a total rated electric generating capacity of 25 or more megawatts, the quantity of pollutants discharged in once through cooling water from each discharge point shall not exceed the quantity determined by multiplying the flow of once through cooling water from each discharge point times the concentration listed in the following table:"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING 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=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.13 (BAT)","page":null,"quote":"Total residual chlorine 0.20"}},{"id":"307758ad65665996","parameter":"Total residual chlorine","value":"0.20","value_num":0.2,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","new sources (NSPS)","(8)(i) Once through cooling water. For any plant with a total rated electric generating capacity of 25 or more megawatts, the quantity of pollutants discharged in once through cooling water from each discharge point shall not exceed the quantity determined by multiplying the flow of once through cooling water from each discharge point times the concentration listed in the following table:"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING 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=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.15 (NSPS)","page":null,"quote":"Total residual chlorine 0.20"}},{"id":"d357b30ee40e50b0","parameter":"Total residual chlorine","value":"0.20","value_num":0.2,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","new sources (NSPS)","(8)(i) Once through cooling water. For any plant with a total rated electric generating capacity of 25 or more megawatts, the quantity of pollutants discharged in once through cooling water from each discharge point shall not exceed the quantity determined by multiplying the flow of once through cooling water from each discharge point times the concentration listed in the following table:"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING 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=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.15 (NSPS)","page":null,"quote":"Total residual chlorine 0.20"}},{"id":"ccce8f14c5af6e7d","parameter":"Chlorine","value":"4 (as Cl 2 )","value_num":4,"unit":"mg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["40 CFR 141.2: MRDLGs are nonenforceable health goals and do not reflect the benefit of the addition of the chemical for control of waterborne microbial contaminants."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"141.54, 141.65","page":null,"quote":null,"column":"mrdlg"}},{"id":"221f54cd4837796e","parameter":"Chlorine","value":"4.0 (as Cl 2 )","value_num":4,"unit":"mg/L","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["40 CFR 141.2: Maximum residual disinfectant level (MRDL) means a level of a disinfectant added for water treatment that may not be exceeded at the consumer's tap without an unacceptable possibility of adverse health effects."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"141.54, 141.65","page":null,"quote":null,"column":"mrdl"}},{"id":"5523548382b64172","parameter":"Chlorine","value":"19","value_num":19,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CMC (acute): criterion maximum concentration, acute"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"Chlorine 7782505 19 11 13 7.5 1986"}},{"id":"5f7b168d9bc02f6f","parameter":"Chlorine","value":"11","value_num":11,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CCC (chronic): criterion continuous concentration, chronic"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"Chlorine 7782505 19 11 13 7.5 1986"}},{"id":"950a8caea289207c","parameter":"Chlorine","value":"0.18","value_num":0.18,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["Resident Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"0ddaf2dba7117b88","parameter":"Chlorine","value":"0.78","value_num":0.78,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"5068c6ec94491acb","parameter":"Chlorine","value":"0.00015","value_num":0.00015,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["Protection of Groundwater SSLs: Risk-based SSL (mg/kg); SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"1e45ea67c1e58ad6","parameter":"Chlorine","value":"2","value_num":2,"unit":"mg/kg","direction":"max","kind":"printed_reference","medium":"soil","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["Protection of Groundwater SSLs: MCL-based SSL (mg/kg); SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"mcl"}},{"id":"8dce46708b6e66e8","parameter":"Chlorine","value":"0.3","value_num":0.3,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:7782-50-5","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"bcbc6f6219fc9abd","parameter":"Chlorine dioxide","value":"0.8 (as ClO 2 )","value_num":0.8,"unit":"mg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:10049-04-4","place":["US"],"conditions":["40 CFR 141.2: MRDLGs are nonenforceable health goals and do not reflect the benefit of the addition of the chemical for control of waterborne microbial contaminants."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"141.54, 141.65","page":null,"quote":null,"column":"mrdlg"}},{"id":"9e173a78f2d91e84","parameter":"Chlorine dioxide","value":"0.8 (as ClO 2 )","value_num":0.8,"unit":"mg/L","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:10049-04-4","place":["US"],"conditions":["40 CFR 141.2: Maximum residual disinfectant level (MRDL) means a level of a disinfectant added for water treatment that may not be exceeded at the consumer's tap without an unacceptable possibility of adverse health effects."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"141.54, 141.65","page":null,"quote":null,"column":"mrdl"}},{"id":"3934b68bdc7090d1","parameter":"Chlorine Dioxide","value":"2300","value_num":2300,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:10049-04-4","place":["US"],"conditions":["Resident Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"fecb442a2c3f5deb","parameter":"Chlorine Dioxide","value":"34000","value_num":34000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:10049-04-4","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"d6a29660aa4b7ae7","parameter":"Chlorine Dioxide","value":"0.42","value_num":0.42,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:10049-04-4","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"808c639cccd0d56e","parameter":"Free available chlorine","value":"0.5","value_num":0.5,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:free available chlorine","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BPT)","(6) The quantity of pollutants discharged in once through cooling water shall not exceed the quantity determined by multiplying the flow of once through cooling water sources times the concentation listed in the following table:"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING 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=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.12 (BPT)","page":null,"quote":"Free available chlorine 0.5 0.2"}},{"id":"6b3c4d29e0983d02","parameter":"Free available chlorine","value":"0.2","value_num":0.2,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:free available chlorine","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BPT)","(6) The quantity of pollutants discharged in once through cooling water shall not exceed the quantity determined by multiplying the flow of once through cooling water sources times the concentation listed in the following table:"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING 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=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.12 (BPT)","page":null,"quote":"Free available chlorine 0.5 0.2"}},{"id":"f4bc434c8782f213","parameter":"Free available chlorine","value":"0.5","value_num":0.5,"unit":"mg/L","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:free available chlorine","place":["US"],"conditions":["route is direct","cites is 40 CFR 423","existing sources (BPT)","(7) The quantity of pollutants discharged in cooling tower blowdown shall not exceed the quantity determined by multiplying the flow of cooling tower blowdown sources times the concentration listed in the following table:"],"cite":{"instrument":"us_40cfr423","title":"40 CFR Part 423 — PART 423—STEAM ELECTRIC POWER GENERATING 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=423","source_sha256":"60cadc14b8fc25c39238a9d55cede55743d6b349ca20c8f8158b0f7e5d98fd64","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 423.12 (BPT)","page":null,"quote":"Free available chlorine 0.5 0.2"}}],"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-UT"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"chlorine\", 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-UT"},"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"}]}