{"query":{"parameter":"ddt metabolites","place":"US-NV","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NV","US"],"parameter_keys":["cas:50-29-3","name:ddt","name:ddt & metabolites","name:4,4'-ddt","name:ddt et metabolites","cas:72-54-8","cas:72-55-9","name:ddt total"],"names_matched":[["ddt metabolites","cas:50-29-3"],["ddt metabolites","name:ddt"],["ddt metabolites","name:ddt & metabolites"],["4 4 ddt and metabolites","name:4,4'-ddt"],["ddt et metabolites","name:ddt et metabolites"],["p p dichlorodiphenyldichloroethane or ddt metabolite tde ddd","cas:72-54-8","p p ddt"],["p p dichlorodiphenyldichloroethylene or ddt metabolite dde","cas:72-55-9","p p ddt"],["ddt total","name:ddt total","ddt total"],["ddt total 1","name:ddt total","ddt total"]],"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":18,"names":["Dichlorodiphenyldichloroethane, p,p'- (DDD)","Dichlorodiphenyldichloroethylene, p,p'- (DDE)","p,p′-Dichlorodiphenyldichloroethane (DDD)","p,p′-Dichlorodiphenyldichloroethylene (DDE)","p,p′-DDD","p,p′-DDE"],"says":"18 rows share a parameter key with a longer name holding \"ddt metabolites\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"ddt metabolites\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":14,"offset":0,"returned":14,"next_offset":null,"rows":[{"id":"d7ac2848b812a075","parameter":"DDT & metabolites","value":"0","value_num":0,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:ddt & metabolites","place":["US-NV"],"conditions":["receiving_water is freshwater","waters with the beneficial use municipal or domestic supply (the uses each water carries are set in NAC 445A.123 to 445A.2234; site-specific standards for toxic materials take precedence, subsection 1)"],"cite":{"instrument":"us_nv_wqs","title":"Nevada NAC 445A.1236 Standards for toxic materials applicable to designated waters; NAC 445A.1237 selenium for aquatic life, with the Las Vegas Wash's own values; NAC 445A.1233 Colorado River salinity","issuer":"State of Nevada, State Environmental Commission (Division of Environmental Protection)","edition":"NAC Chapter 445A Water Controls effective June 11, 2025, as US EPA posts it in effect for CWA purposes (cover August 20, 2025: EPA approvals since the May 2022 publication in red, removed text as red strikeout)","source_url":"https://www.epa.gov/system/files/documents/2025-11/nvwqs.pdf","source_sha256":"eb1b4a585f250db61459d5e820ab06240338a5084afa75cf6df28dcbf4af2d4d","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"NAC 445A.1236 subsection 2","page":82,"quote":"DDT & metabolites 0a - - -"}},{"id":"513f39755c1c904c","parameter":"p,p′-DDT","value":"0.0039","value_num":0.0039,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:50-29-3","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, Organic Constituents, wastewater standard","page":null,"quote":"p,p′-DDT 50-29-3 0.0039 0.087"}},{"id":"f418c30e6f897985","parameter":"p,p′-DDT","value":"0.087","value_num":0.087,"unit":"mg/kg","statistic":"instant","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:50-29-3","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, Organic Constituents, nonwastewater standard","page":null,"quote":"p,p′-DDT 50-29-3 0.0039 0.087"}},{"id":"111dda46578b21a4","parameter":"4,4'-DDT","value":"1.1","value_num":1.1,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:50-29-3","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":"4,4'-DDT (P) 50293 1.1 0.001 0.13 0.001 1980"}},{"id":"5a15f2a5375e0297","parameter":"4,4'-DDT","value":"0.001","value_num":0.001,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:50-29-3","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); 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":"4,4'-DDT (P) 50293 1.1 0.001 0.13 0.001 1980"}},{"id":"fcfa5889252445b8","parameter":"p,p′-Dichlorodiphenyltrichloroethane (DDT)","value":"0.000030","value_num":0.00003,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:50-29-3","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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SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"9a7dfb9530acbaa3","parameter":"Dichlorodiphenyltrichloroethane, p,p'- (DDT)","value":"0.23","value_num":0.23,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:50-29-3","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"19135ff060fe0480","parameter":"4,4'-DDT","value":"0.13","value_num":0.13,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:50-29-3","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 marine","Saltwater 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); 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