{"query":{"parameter":"chloride","place":"US-IN","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-IN","US"],"parameter_keys":["cas:16887-00-6","cas:7647-14-5"],"names_matched":[["chloride","cas:16887-00-6"],["chloride","cas:7647-14-5"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order","not_searched":{"names":105,"parameters":64,"some":["1 1 3 5 tetramethyl piperidinium chloride","1 1 dichlorethane ethylidene chloride","1 1 dichloroethylene 1 1 dichloroethene vinylidene chloride","1 1 dichloroethylene vinylidene chloride","1 decanaminium n decyl n n dimethyl chloride","1 propanaminium 2 3 dihydroxy n n n trimethyl chloride","2 3 dihydroxy n n n trimethyl 1 propanaminium chloride","2 acryloyloxy ethyl trimethylammonium chloride","2 chlorobenzyl chloride","2 ethyl hexanoyl chloride","2 ethylhexyl chloride","2 propen 1 aminium n564n n dimethyl n propenyl chloride homopolymer","3 chloro 2 hydroxypropyltrimethyl ammonium chloride","3 chloro 2 hydroxypropyltrimethylammonium chloride","4 4 4 trifluoroacetoacetyl chloride","4 chlorobenzyl chloride","5 methylene chloride","acetyl chloride","alkyl dimethyl benzyl ammonium chloride","allyl chloride","aluminum chloride hydroxide","ammonium chloride","benzal chloride","benzoyl chloride","benzoyl chloride 2 methyl"],"says":"105 other names contain \"chloride\" (64 parameters, over the 40 searched at once): ask for one of them by name."}},"total":530,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"45ec9fab79cfc9b5","parameter":"Chloride","value":"C = 287.8 (hardness)0.205797 (sulfate)-0.07452 Where: C = chloride AAC (maximum) in mg/l.","unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16887-00-6","place":["US-IN"],"conditions":["receiving_water is freshwater","waters of the state outside the Great Lakes system (327 IAC 2-1: 'Water Quality Standards Applicable to All State Waters Except Waters of the State Within the Great Lakes System')","a function of the receiving water's hardness (mg/l CaCO3) and sulfate (mg/l): the formula as printed"],"cite":{"instrument":"us_in_wqs","title":"Indiana 327 IAC 2 Water Quality Standards: Rule 1 (waters outside the Great Lakes system) and Rule 1.5 (the Great Lakes system) aquatic life, human health, wildlife, chloride, sulfate and use criteria","issuer":"State of Indiana, Environmental Rules Board (Department of Environmental Management)","edition":"327 IAC 2 (Article 2) effective October 18, 2023, as US EPA posts it in effect for CWA purposes (cover November 28, 2023: only the variance provision 327 IAC 2-1.5-17(b) disapproved)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/inwqs.pdf","source_sha256":"a1d0dba2ac83057cf619f9e0cb6f1fe5c8f9c908928310f266936510d4211a1c","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"327 IAC 2-1-6(a)(6)","page":13,"quote":"C = 287.8 (hardness)0.205797 (sulfate)-0.07452 Where: C = chloride AAC (maximum) in mg/l."}},{"id":"8356f9235f0d3cd3","parameter":"Chloride","value":"C = 177.87 (hardness)0.205797 (sulfate)-0.07452 Where: C = chloride CAC (4-day average) in mg/l.","unit":"mg/L","statistic":"four_day_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16887-00-6","place":["US-IN"],"conditions":["receiving_water is freshwater","waters of the state outside the Great Lakes system (327 IAC 2-1: 'Water Quality Standards Applicable to All State Waters Except Waters of the State Within the Great Lakes System')","a function of the receiving water's hardness (mg/l CaCO3) and sulfate (mg/l): the formula as printed"],"cite":{"instrument":"us_in_wqs","title":"Indiana 327 IAC 2 Water Quality Standards: Rule 1 (waters outside the Great Lakes system) and Rule 1.5 (the Great Lakes system) aquatic life, human health, wildlife, chloride, sulfate and use criteria","issuer":"State of Indiana, Environmental Rules Board (Department of Environmental Management)","edition":"327 IAC 2 (Article 2) effective October 18, 2023, as US EPA posts it in effect for CWA purposes (cover November 28, 2023: only the variance provision 327 IAC 2-1.5-17(b) disapproved)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/inwqs.pdf","source_sha256":"a1d0dba2ac83057cf619f9e0cb6f1fe5c8f9c908928310f266936510d4211a1c","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"327 IAC 2-1-6(a)(6)","page":13,"quote":"C = 177.87 (hardness)0.205797 (sulfate)-0.07452 Where: C = chloride CAC (4-day average) in mg/l."}},{"id":"1c2c74cc2c660fab","parameter":"Chloride","value":"526","value_num":526,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16887-00-6","place":["US-IN"],"conditions":["receiving_water is freshwater","waters of the state outside the Great Lakes system (327 IAC 2-1: 'Water Quality Standards Applicable to All State Waters Except Waters of the State Within the Great Lakes System')","hardness 50 mg/l CaCO3 (the table's column)","sulfate 15 mg/l in the receiving water (the table's row)"],"cite":{"instrument":"us_in_wqs","title":"Indiana 327 IAC 2 Water Quality Standards: Rule 1 (waters outside the Great Lakes system) and Rule 1.5 (the Great Lakes system) aquatic life, human health, wildlife, chloride, sulfate and use criteria","issuer":"State of Indiana, Environmental Rules Board (Department of Environmental Management)","edition":"327 IAC 2 (Article 2) effective October 18, 2023, as US EPA posts it in effect for 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845"}},{"id":"42e849b4ee4a6f1c","parameter":"Chloride","value":"660","value_num":660,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:16887-00-6","place":["US-IN"],"conditions":["receiving_water is freshwater","waters of the state outside the Great Lakes system (327 IAC 2-1: 'Water Quality Standards Applicable to All State Waters Except Waters of the State Within the Great Lakes System')","hardness 150 mg/l CaCO3 (the table's column)","sulfate 15 mg/l in the receiving water (the table's row)"],"cite":{"instrument":"us_in_wqs","title":"Indiana 327 IAC 2 Water Quality Standards: Rule 1 (waters outside the Great Lakes system) and Rule 1.5 (the Great Lakes system) aquatic life, human health, wildlife, chloride, sulfate and use criteria","issuer":"State of Indiana, Environmental Rules Board (Department of Environmental Management)","edition":"327 IAC 2 (Article 2) effective October 18, 2023, as US EPA posts it in effect for 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