{"query":{"parameter":"chlorophenoxy herbicide 2 4 5 tp silvex","place":"US-DE","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-DE","US"],"parameter_keys":["cas:93-72-1","name:chlorophenoxy herbicide (2,4,5-tp) [silvex]","name:2-(2,4,5-trichloro-phenoxy)-propionic acid","name:2,4,5-trichlorophenoxy propionic acid","name:silvex (2, 4, 5-tp, 2- [2, 4, 5-trichlorophenoxy] propionic acid","name:silvex (2,4,5-tp, 2-[2,4,5-trichlorophenoxy]propionic acid","name:chlorophenoxy herbicide"],"names_matched":[["chlorophenoxy herbicide 2 4 5 tp silvex","cas:93-72-1"],["chlorophenoxy herbicide 2 4 5 tp silvex","name:chlorophenoxy herbicide (2,4,5-tp) [silvex]"],["2 2 4 5 trichloro phenoxy propionic acid 2 4 5 tp or silvex","name:2-(2,4,5-trichloro-phenoxy)-propionic acid","silvex"],["2 4 5 trichlorophenoxy propionic acid tp silvex","name:2,4,5-trichlorophenoxy propionic acid","silvex"],["silvex 2 4 5 tp 2 2 4 5 trichlorophenoxy propionic acid","name:silvex (2, 4, 5-tp, 2- [2, 4, 5-trichlorophenoxy] propionic acid","silvex"],["silvex 2 4 5 tp 2 2 4 5 trichlorophenoxy propionic acid","name:silvex (2,4,5-tp, 2-[2,4,5-trichlorophenoxy]propionic acid","silvex"],["chlorophenoxy herbicide 2 4 5 tp","name:chlorophenoxy herbicide","chlorophenoxy herbicide 2 4 5 tp"]],"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":1,"names":["Chlorophenoxy Herbicide (2,4-D)"],"says":"1 rows share a parameter key with a longer name holding \"chlorophenoxy herbicide 2 4 5 tp silvex\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"chlorophenoxy herbicide 2 4 5 tp silvex\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":12,"offset":0,"returned":12,"next_offset":null,"rows":[{"id":"bd04d62cb79f0011","parameter":"Chlorophenoxy Herbicide (2,4,5-TP) [Silvex]","value":"50 (MCL)","value_num":50,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:chlorophenoxy herbicide (2,4,5-tp) [silvex]","place":["US-DE"],"conditions":["waters designated Public Water Supply sources (Table 2 notes: 'Fish and Water Ingestion')"],"cite":{"instrument":"us_de_wqs","title":"7 DE Admin. Code 7401 — Surface Water Quality Standards (Delaware), Tables 1 and 2","issuer":"State of Delaware, Department of Natural Resources and Environmental Control","edition":"Regulation 7401 as EPA posts it in effect for Clean Water Act purposes (fetched 2026-10-09); the state's own page (regulations.delaware.gov) is served by a script and was not held","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/dewqs.pdf","source_sha256":"6dc0538b864a459cbcbfcb8bedf18e793473a7dc79596ce1be403360622f55ee","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"7 DE Admin. Code 7401 Table 2 (human health, water + organism)","page":18,"quote":null}},{"id":"50eeffc11f80402d","parameter":"2,4,5-TP (Silvex)","value":"1.0","value_num":1,"unit":"mg/L","direction":"max","kind":"threshold","medium":"leachate","level":"national","parameter_key":"cas:93-72-1","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":"D017 2,4,5-TP (Silvex) 93-72-1 1.0"}},{"id":"2449795aa75bead6","parameter":"Silvex/2,4,5-TP","value":"0.72","value_num":0.72,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:93-72-1","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":"Silvex/2,4,5-TP 93-72-1 0.72 7.9"}},{"id":"a04a44caa7a4f73e","parameter":"Silvex/2,4,5-TP","value":"7.9","value_num":7.9,"unit":"mg/kg","statistic":"instant","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:93-72-1","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":"Silvex/2,4,5-TP 93-72-1 0.72 7.9"}},{"id":"9fe426b47d9f92ea","parameter":"Chlorophenoxy Herbicide (2,4,5-TP) [Silvex]","value":"100","value_num":100,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:93-72-1","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","consumption of water + organism: a water designated a drinking-water source and for fish and shellfish (a designated use the state assigns)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); 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or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}