{"query":{"parameter":"total chromium","place":"US-LA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-LA","US"],"parameter_keys":["cas:7440-47-3","name:total chromium","cas:18540-29-9","name:cromo totale","cas:16065-83-1","name:chrome total","name:chromium (+3)","name:chromium +3, total","name:chromium-51","name:chromium (+6)","name:chromium +6","name:chromium +6, total","name:chromium ii iii","name:chromium total","name:chromium, total","name:chromium (vi) (freshwater) chromium (vi) marine","cas:92203-02-6"],"names_matched":[["total chromium","cas:7440-47-3"],["total chromium","name:total chromium"],["chrom vi","cas:18540-29-9","chrom"],["cromo esavalente","cas:18540-29-9","cromo"],["cromo hexavalente","cas:18540-29-9","cromo"],["cromo totale","name:cromo totale","cromo"],["cromo trivalente","cas:16065-83-1","cromo"],["cromo vi","cas:18540-29-9","cromo"],["chrome composes de chrome hexavalent","cas:18540-29-9","chrome"],["chrome composes de chrome trivalent","cas:16065-83-1","chrome"],["chrome hexavalent et composes en cr 6","cas:18540-29-9","chrome"],["chrome iii cr iii","cas:16065-83-1","chrome"],["chrome total","name:chrome total","chrome"],["chrome total cr","name:chrome total","chrome"],["chrome vi cr vi","cas:18540-29-9","chrome"],["chromium 3","cas:16065-83-1","chromium"],["chromium 3","name:chromium (+3)","chromium"],["chromium 3 total","name:chromium +3, total","chromium"],["chromium 3 total recoverable","name:chromium (+3)","chromium"],["chromium 51","name:chromium-51","chromium"],["chromium 6","cas:18540-29-9","chromium"],["chromium 6","name:chromium (+6)","chromium"],["chromium 6","name:chromium +6","chromium"],["chromium 6 total","name:chromium +6, total","chromium"],["chromium 6 total recoverable","name:chromium (+6)","chromium"],["chromium and chromium compounds metallic divalent and trivalent","name:chromium ii iii","chromium"],["chromium compounds hexavalent","cas:18540-29-9","chromium"],["chromium hex","cas:18540-29-9","chromium"],["chromium hex dissolved","cas:18540-29-9","chromium"],["chromium hexavalent","cas:18540-29-9","chromium"],["chromium hexavalent cr vi","cas:18540-29-9","chromium"],["chromium hexavalent dissolved","cas:18540-29-9","chromium"],["chromium hexavalent total","cas:18540-29-9","chromium"],["chromium ii iii","name:chromium ii iii","chromium"],["chromium iii","cas:16065-83-1","chromium"],["chromium iii dissolved","cas:16065-83-1","chromium"],["chromium iii insoluble salts","cas:16065-83-1","chromium"],["chromium iii soluble compounds","cas:16065-83-1","chromium"],["chromium iii total","cas:16065-83-1","chromium"],["chromium iii total recoverable","cas:16065-83-1","chromium"],["chromium total","name:chromium total","chromium"],["chromium total","name:chromium, total","chromium"],["chromium total hexavalent cr vi","cas:18540-29-9","chromium"],["chromium total trivalent cr iii","cas:16065-83-1","chromium"],["chromium tri","cas:16065-83-1","chromium"],["chromium trivalent","cas:16065-83-1","chromium"],["chromium trivalent cr iii","cas:16065-83-1","chromium"],["chromium trivalent dissolved","cas:16065-83-1","chromium"],["chromium vi","cas:18540-29-9","chromium"],["chromium vi and compounds 1 12","cas:18540-29-9","chromium"],["chromium vi and compounds 1 13","cas:18540-29-9","chromium"],["chromium vi dissolved","cas:18540-29-9","chromium"],["chromium vi freshwater chromium vi marine","name:chromium (vi) (freshwater) chromium (vi) marine","chromium"],["chromium vi total","cas:18540-29-9","chromium"],["chromium vi total recoverable","cas:18540-29-9","chromium"],["hexavalent chromium","cas:18540-29-9","chromium"],["phosphoric acid reaction products with aluminum hydroxide and chromium oxide cro3","cas:92203-02-6","chromium"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water"},"total":2704,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"d589b0458856dbba","parameter":"Total Chromium","value":"1.1 mg/L, daily max","value_num":1.1,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total chromium","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is K","Discharges from hazardous waste landfills subject to effluent limitations in 40 CFR Part 445 Subpart A (see footnote)38"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":41,"quote":null}},{"id":"d0939119255952b2","parameter":"Total Chromium","value":"0.46 mg/L, monthly avg.","value_num":0.46,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total chromium","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is K","Discharges from hazardous waste landfills subject to effluent limitations in 40 CFR Part 445 Subpart A (see footnote)38"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":41,"quote":null}},{"id":"d2e6345eb78d77d3","parameter":"Chromium VI (and compounds) [1] [12]","value":"25.0","value_num":25,"unit":"lb/yr","direction":"max","kind":"threshold","medium":"air_emission","level":"regional","parameter_key":"cas:18540-29-9","place":["US-LA"],"conditions":["the source is a major source of toxic air pollutants (5103)"],"cite":{"instrument":"us_la_lac33_iii_5112","title":"LAC 33:III.5112 — Toxic air pollutants: minimum emission rates (Table 51.1) and ambient air standards (Table 51.2)","issuer":null,"edition":"LII transcription of LAC 33:III.5112 (fetched 2026-09-25)","source_url":"https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-33-SS-III-5112","source_sha256":"ad168892d6da7f3e8eda05d066b3cf2a0018d9fefcd81676abc7ca5110cca6dc","fetched_at":"2026-09-25","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 51.1 Class I","page":null,"quote":"Chromium VI (and compounds) [1] [12] 7440-47-3  25.0"}},{"id":"8144b19a423554c3","parameter":"Chromium VI (and compounds) [1] [13]","value":"0.01","value_num":0.01,"unit":"µg/m³","statistic":"annual_avg","direction":"max","kind":"limit","medium":"ambient_air","level":"regional","parameter_key":"cas:18540-29-9","place":["US-LA"],"conditions":["a major source at or above the minimum emission rate demonstrates it (5109.B)"],"cite":{"instrument":"us_la_lac33_iii_5112","title":"LAC 33:III.5112 — Toxic air pollutants: minimum emission rates (Table 51.1) and ambient air standards (Table 51.2)","issuer":null,"edition":"LII transcription of LAC 33:III.5112 (fetched 2026-09-25)","source_url":"https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-33-SS-III-5112","source_sha256":"ad168892d6da7f3e8eda05d066b3cf2a0018d9fefcd81676abc7ca5110cca6dc","fetched_at":"2026-09-25","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 51.2 Class I","page":null,"quote":"Chromium VI (and compounds) [1] [13] 7440-47-3 I 0.01"}},{"id":"f491b5d64a4e4613","parameter":"Chromium (III)","value":"0.57 mg/L","value_num":0.57,"unit":"mg/L","direction":"max","kind":"benchmark","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"cas:16065-83-1","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is R","sic in 3731, 3732"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":44,"quote":null}},{"id":"8c86306c42281ff5","parameter":"Chromium (VI) (freshwater) Chromium (VI) marine","value":"0.016 mg/L 0.11 mg/L","value_num":0.016,"unit":"mg/L","direction":"max","kind":"benchmark","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:chromium (vi) (freshwater) chromium (vi) marine","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is R","sic in 3731, 3732","receiving_water is freshwater"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":44,"quote":null}},{"id":"8fb1872a9885ace2","parameter":"Chromium","value":"5.0","value_num":5,"unit":"mg/L","direction":"max","kind":"threshold","medium":"leachate","level":"national","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["(a) A solid waste (except manufactured gas plant waste) exhibits the characteristic of toxicity if, using the Toxicity Characteristic Leaching Procedure, test Method 1311 in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA Publication SW-846, as incorporated by reference in § 260.11 of this chapter, the extract from a representative sample of the waste contains any of the contaminants listed in table 1 at the concentration equal to or greater than the respective value given in that table. Where the waste contains less than 0.5 percent filterable solids, the waste itself, after filtering using the methodology outlined in Method 1311, is considered to be the extract for the purpose of this section."],"cite":{"instrument":"us_40cfr261_24","title":"40 CFR 261.24 — Toxicity characteristic: Table 1, maximum concentration of contaminants for the toxicity characteristic (TCLP regulatory levels)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR, 40 CFR 261.24 as of 2026-10-13 (title 40 up to date as of that day)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-13/title-40.xml?part=261&section=261.24","source_sha256":"3a1ec9b0d3051c70e471e359275657b0fa6d98e80927d2217e82b2dbbca60961","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 261.24, Table 1","page":null,"quote":"D007 Chromium 7440-47-3 5.0"}},{"id":"96c2b6d624ded0c8","parameter":"Chromium (Total)","value":"2.77","value_num":2.77,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:7440-47-3","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","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 268.48, Table UTS, Inorganic Constituents, wastewater standard","page":null,"quote":"Chromium (Total) 7440-47-3 2.77 0.60 mg/l TCLP"}},{"id":"28487d54f43db568","parameter":"Chromium (Total)","value":"0.60 mg/l TCLP","value_num":0.6,"unit":"mg/L TCLP","statistic":"instant","direction":"max","kind":"limit","medium":"leachate","level":"national","parameter_key":"cas:7440-47-3","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","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 268.48, Table UTS, Inorganic Constituents, nonwastewater standard","page":null,"quote":"Chromium (Total) 7440-47-3 2.77 0.60 mg/l TCLP"}},{"id":"a2fa3493dcb86bd1","parameter":"Total chromium","value":"0.10","value_num":0.1,"unit":"Kg/kkg (or pounds per 1,000 lb) of wool","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart A—Wool Scouring Subcategory","existing sources (BPT)"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS 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=410","source_sha256":"02c53988595c9f2911727f635f59f6a2af0c1d50ce06550c150a706321a505b3","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 410.12 (BPT)","page":null,"quote":"Total chromium 0.10 0.05"}},{"id":"36635e19cc6a833a","parameter":"Total chromium","value":"0.05","value_num":0.05,"unit":"Kg/kkg (or pounds per 1,000 lb) of wool","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart A—Wool Scouring Subcategory","existing sources (BPT)"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS 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=410","source_sha256":"02c53988595c9f2911727f635f59f6a2af0c1d50ce06550c150a706321a505b3","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 410.12 (BPT)","page":null,"quote":"Total chromium 0.10 0.05"}},{"id":"19f355cc15cdb2b4","parameter":"Total chromium","value":"0.10","value_num":0.1,"unit":"Kg/kkg (or pounds per 1,000 lb) of wool","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart A—Wool Scouring Subcategory","existing sources (BAT)"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS 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=410","source_sha256":"02c53988595c9f2911727f635f59f6a2af0c1d50ce06550c150a706321a505b3","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 410.13 (BAT)","page":null,"quote":"Total chromium 0.10 0.05"}},{"id":"561c76aeec589198","parameter":"Total chromium","value":"0.05","value_num":0.05,"unit":"Kg/kkg (or pounds per 1,000 lb) of wool","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart A—Wool Scouring Subcategory","existing sources (BAT)"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS 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=410","source_sha256":"02c53988595c9f2911727f635f59f6a2af0c1d50ce06550c150a706321a505b3","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 410.13 (BAT)","page":null,"quote":"Total chromium 0.10 0.05"}},{"id":"5bfc61f2e78c8431","parameter":"Total chromium","value":"0.10","value_num":0.1,"unit":"Kg/kkg (or pounds per 1,000 lb) of wool","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart A—Wool Scouring Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS 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=410","source_sha256":"02c53988595c9f2911727f635f59f6a2af0c1d50ce06550c150a706321a505b3","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 410.15 (NSPS)","page":null,"quote":"Total chromium 0.10 0.05"}},{"id":"8dbd6e58fdbd9768","parameter":"Total chromium","value":"0.05","value_num":0.05,"unit":"Kg/kkg (or pounds per 1,000 lb) of wool","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart A—Wool Scouring Subcategory","new sources (NSPS)","Any new source subject to this subpart must achieve the following new source performance standards (NSPS):"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS 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=410","source_sha256":"02c53988595c9f2911727f635f59f6a2af0c1d50ce06550c150a706321a505b3","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"40 CFR 410.15 (NSPS)","page":null,"quote":"Total chromium 0.10 0.05"}},{"id":"90fc4e006a1a04d2","parameter":"Total chromium","value":"0.14","value_num":0.14,"unit":"Kg/kkg (or pound per 1,000 lb) of fiber","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-47-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 410","the discharge is of the Subpart B—Wool Finishing Subcategory","existing sources (BPT)"],"cite":{"instrument":"us_40cfr410","title":"40 CFR Part 410 — PART 410—TEXTILE MILLS POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 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