{"query":{"parameter":"2 4 d","place":"US-SD","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-SD","US"],"parameter_keys":["cas:94-75-7","name:2,4-d","name:2-4-d","cas:1929-73-3","name:2,4-dichlorophenoxy-acetic acid","name:chlorophenoxy herbicide","name:chlorophenoxy herbicides","name:d, 2,4-","name:2,4 dichlorophenoxyacetic acid"],"names_matched":[["2 4 d","cas:94-75-7"],["2 4 d","name:2,4-d"],["2 4 d","name:2-4-d"],["2 4 d bee","cas:1929-73-3"],["2 4 dichlorophenoxy acetic acid 2 4 d","name:2,4-dichlorophenoxy-acetic acid"],["chlorophenoxy herbicide 2 4 d","name:chlorophenoxy herbicide"],["chlorophenoxy herbicides 2 4 d","name:chlorophenoxy herbicides"],["d 2 4 2 4 d 2 4 dichlorophenoxy acetic acid","name:d, 2,4-"],["2 4 dichlorophenoxyacetic acid","name:2,4 dichlorophenoxyacetic acid","2 4 dichlorophenoxyacetic acid"],["2 4 dichlorophenoxy acetic acid","name:2,4-dichlorophenoxy-acetic acid","2 4 dichlorophenoxy acetic acid"]],"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":15,"offset":0,"returned":15,"next_offset":null,"rows":[{"id":"6cd407cc7c31f479","parameter":"Chlorophenoxy Herbicide (2,4- D)","value":"1,300","value_num":1300,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:94-75-7","place":["US-SD"],"conditions":["receiving_water is freshwater","waters assigned the beneficial use of domestic water supply (a water's uses: chapters 74:51:02 lakes and 74:51:03 streams)"],"cite":{"instrument":"us_sd_wqs","title":"South Dakota Surface Water Quality Standards (ARSD 74:51:01): criteria by beneficial use, Appendix B toxic pollutant criteria, radionuclide and dissolved gas limits","issuer":"State of South Dakota, Water Management Board (Department of Agriculture and Natural Resources)","edition":"ARSD chapter 74:51:01, Surface Water Quality, effective August 17, 2023 (49 SDR 96, May 14, 2023 the latest amendment printed), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/sd-wqs.pdf","source_sha256":"84e4cd1bcfc7954e7393230459ee9d98f7b9c39e0b29724e6b897bdb73f4ddcc","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"ARSD 74:51:01 Appendix B","page":42,"quote":"Chlorophenoxy Herbicide (2,4- D) 94757 1,300"}},{"id":"49e1780ba4c13ae5","parameter":"Chlorophenoxy Herbicide (2,4- D)","value":"12,000","value_num":12000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:94-75-7","place":["US-SD"],"conditions":["receiving_water is freshwater","waters assigned a fish life propagation use (2-6) or fish and wildlife propagation, recreation, and stock watering (9) (a water's uses: chapters 74:51:02 lakes and 74:51:03 streams)"],"cite":{"instrument":"us_sd_wqs","title":"South Dakota Surface Water Quality Standards (ARSD 74:51:01): criteria by beneficial use, Appendix B toxic pollutant criteria, radionuclide and dissolved gas limits","issuer":"State of South Dakota, Water Management Board (Department of Agriculture and Natural Resources)","edition":"ARSD chapter 74:51:01, Surface Water Quality, effective August 17, 2023 (49 SDR 96, May 14, 2023 the latest amendment printed), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/sd-wqs.pdf","source_sha256":"84e4cd1bcfc7954e7393230459ee9d98f7b9c39e0b29724e6b897bdb73f4ddcc","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"ARSD 74:51:01 Appendix B","page":42,"quote":"Chlorophenoxy Herbicide (2,4- D) 94757 1,300 12,000"}},{"id":"2f5274d643d3167b","parameter":"2,4-D","value":"10.0","value_num":10,"unit":"mg/L","direction":"max","kind":"threshold","medium":"leachate","level":"national","parameter_key":"cas:94-75-7","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":"D016 2,4-D 94-75-7 10.0"}},{"id":"94799c0d60e22358","parameter":"2,4-Dichlorophenoxyacetic acid/2,4-D","value":"0.72","value_num":0.72,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:94-75-7","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, Organic Constituents, wastewater standard","page":null,"quote":"2,4-Dichlorophenoxyacetic acid/2,4-D 94-75-7 0.72 10"}},{"id":"3ac8075cc82294f7","parameter":"2,4-Dichlorophenoxyacetic acid/2,4-D","value":"10","value_num":10,"unit":"mg/kg","statistic":"instant","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:94-75-7","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, Organic Constituents, nonwastewater standard","page":null,"quote":"2,4-Dichlorophenoxyacetic 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