{"query":{"parameter":"beta endosulfan","place":"US-VA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-VA","US"],"parameter_keys":["cas:33213-65-9","name:beta-endosulfan","name:alpha-endosulfan beta-endosulfan","name:b-endosulfan","cas:115-29-7","name:endosulfan (i ou α) et (ii ou β), totaux"],"names_matched":[["beta endosulfan","cas:33213-65-9"],["beta endosulfan","name:beta-endosulfan"],["alpha endosulfan beta endosulfan","name:alpha-endosulfan beta-endosulfan"],["b endosulfan","name:b-endosulfan","b endosulfan"],["endosulfan i and endosulfan ii alpha and beta summed","cas:115-29-7","endosulfan ii"],["endosulfan i ii","cas:115-29-7","endosulfan ii"],["endosulfan i ou et ii ou totaux","name:endosulfan (i ou α) et (ii ou β), totaux","endosulfan ii"],["endosulfan alpha and beta","cas:115-29-7","endosulfan beta"],["endosulfan alpha beta sulfate","cas:115-29-7","endosulfan beta"],["endosulfan beta","cas:115-29-7","endosulfan beta"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":6,"names":["Endosulfan"],"says":"6 rows share a parameter key with a longer name holding \"beta endosulfan\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"beta endosulfan\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":15,"offset":0,"returned":15,"next_offset":null,"rows":[{"id":"8169a7a227c07c4e","parameter":"Beta-Endosulfan","value":"0.22","value_num":0.22,"unit":"µg/l","statistic":"hourly_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:33213-65-9","place":["US-VA"],"conditions":["receiving_water is freshwater","Class II tidal freshwater and Classes III-VII (9VAC25-260-140 C); in a Class II transition zone the more stringent of the freshwater and saltwater criteria"],"cite":{"instrument":"us_va_wqs","title":"9VAC25-260-140 — Criteria for surface water (Virginia Water Quality Standards), Table of Parameters","issuer":"Commonwealth of Virginia, State Water Control Board (Department of Environmental Quality)","edition":"Virginia Administrative Code as served by the General Assembly's LIS on 2026-10-09; last amended Virginia Register Volume 40, Issue 24, eff. 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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":"Endosulfan II 33213-65-9 0.029 0.13"}},{"id":"ba0e75c93f1dd1c1","parameter":"Endosulfan II","value":"0.13","value_num":0.13,"unit":"mg/kg","statistic":"instant","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:33213-65-9","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":"Endosulfan II 33213-65-9 0.029 0.13"}},{"id":"3f9cc481f7096893","parameter":"beta-Endosulfan","value":"0.22","value_num":0.22,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:33213-65-9","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":"not verified"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"beta-Endosulfan (P) 33213659 0.22 0.056 0.034 0.0087 1980"}},{"id":"cd92103432b48a2c","parameter":"beta-Endosulfan","value":"0.056","value_num":0.056,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:33213-65-9","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); 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