{"query":{"parameter":"n nitrosodi n butylamine","place":"US-WI","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-WI","US"],"parameter_keys":["cas:924-16-3","name:n−nitrosodi−n−butylamine","name:nitrosodibutylamine","name:nitrosodibutylamine n"],"names_matched":[["n nitrosodi n butylamine","cas:924-16-3"],["n nitrosodi n butylamine","name:n−nitrosodi−n−butylamine"],["nitrosodibutylamine","name:nitrosodibutylamine","nitrosodibutylamine"],["nitrosodibutylamine n","name:nitrosodibutylamine n","nitrosodibutylamine"]],"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":14,"offset":0,"returned":14,"next_offset":null,"rows":[{"id":"83296c65870f65dd","parameter":"N−Nitrosodi−n−butylamine","value":"0.063","value_num":0.063,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:n−nitrosodi−n−butylamine","place":["US-WI"],"conditions":["receiving_water is freshwater","waters classified as public water supplies (ch. 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N−Nitrosodi−n−butylamine 0.063 0.062 2.5 1.3 13"}},{"id":"1895e8139dd64d9c","parameter":"N−Nitrosodi−n−butylamine","value":"0.062","value_num":0.062,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:n−nitrosodi−n−butylamine","place":["US-WI"],"conditions":["receiving_water is freshwater","waters classified as public water supplies (ch. NR 104)","cold water community (NR 102.04(3)(a))"],"cite":{"instrument":"us_wi_wqs","title":"Wisconsin Administrative Code ch. NR 105 surface water quality criteria for toxic substances (acute and chronic aquatic life, wildlife, human threshold and human cancer) and ch. 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N−Nitrosodi−n−butylamine 0.063 0.062 2.5 1.3 13"}},{"id":"2793ff7d9609270e","parameter":"N−Nitrosodi−n−butylamine","value":"2.5","value_num":2.5,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:n−nitrosodi−n−butylamine","place":["US-WI"],"conditions":["receiving_water is freshwater","waters not classified as public water supplies","warm water forage fish community (NR 102.04(3)(c)) or limited forage fish community (NR 102.04(3)(d)) or warm water sport fish community (NR 102.04(3)(b))"],"cite":{"instrument":"us_wi_wqs","title":"Wisconsin Administrative Code ch. NR 105 surface water quality criteria for toxic substances (acute and chronic aquatic life, wildlife, human threshold and human cancer) and ch. NR 102 dissolved oxygen, pH, PFOS/PFOA and total phosphorus criteria","issuer":"State of Wisconsin, Department of Natural Resources","edition":"NR 105 as last amended Register July 2010 No. 655 (eff. 8-1-10) and NR 102 effective April 26, 2024 (Register January 2024 No. 817), as US EPA posts them in effect for CWA purposes; EPA disapproved NR 105's copper and nickel acute and chronic criteria (Tables 2 and 6) and the endrin chronic criterion (Table 5), replaced by 40 CFR 132 Tables 1 and 2","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/wiwqs-nr105.pdf","source_sha256":"c41f1ef79ba951936c9998711fca196f6e6b27dff311ba17b27d938b39cb0063","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"NR 105.09 Table 9","page":17,"quote":"30. 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NR 102 dissolved oxygen, pH, PFOS/PFOA and total phosphorus criteria","issuer":"State of Wisconsin, Department of Natural Resources","edition":"NR 105 as last amended Register July 2010 No. 655 (eff. 8-1-10) and NR 102 effective April 26, 2024 (Register January 2024 No. 817), as US EPA posts them in effect for CWA purposes; EPA disapproved NR 105's copper and nickel acute and chronic criteria (Tables 2 and 6) and the endrin chronic criterion (Table 5), replaced by 40 CFR 132 Tables 1 and 2","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/wiwqs-nr105.pdf","source_sha256":"c41f1ef79ba951936c9998711fca196f6e6b27dff311ba17b27d938b39cb0063","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"NR 105.09 Table 9","page":17,"quote":"30. N−Nitrosodi−n−butylamine 0.063 0.062 2.5 1.3 13"}},{"id":"e1ac2338beb59acf","parameter":"N−Nitrosodi−n−butylamine","value":"13","value_num":13,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:n−nitrosodi−n−butylamine","place":["US-WI"],"conditions":["receiving_water is freshwater","waters not classified as public water supplies","limited aquatic life (NR 102.04(3)(e))"],"cite":{"instrument":"us_wi_wqs","title":"Wisconsin Administrative Code ch. NR 105 surface water quality criteria for toxic substances (acute and chronic aquatic life, wildlife, human threshold and human cancer) and ch. NR 102 dissolved oxygen, pH, PFOS/PFOA and total phosphorus criteria","issuer":"State of Wisconsin, Department of Natural Resources","edition":"NR 105 as last amended Register July 2010 No. 655 (eff. 8-1-10) and NR 102 effective April 26, 2024 (Register January 2024 No. 817), as US EPA posts them in effect for CWA purposes; EPA disapproved NR 105's copper and nickel acute and chronic criteria (Tables 2 and 6) and the endrin chronic criterion (Table 5), replaced by 40 CFR 132 Tables 1 and 2","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/wiwqs-nr105.pdf","source_sha256":"c41f1ef79ba951936c9998711fca196f6e6b27dff311ba17b27d938b39cb0063","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"NR 105.09 Table 9","page":17,"quote":"30. N−Nitrosodi−n−butylamine 0.063 0.062 2.5 1.3 13"}},{"id":"4472ddab24f9acfe","parameter":"N-Nitroso-di-n-butylamine","value":"0.40","value_num":0.4,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:924-16-3","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":"N-Nitroso-di-n-butylamine 924-16-3 0.40 17"}},{"id":"9f8e872aa6356812","parameter":"N-Nitroso-di-n-butylamine","value":"17","value_num":17,"unit":"mg/kg","statistic":"instant","direction":"max","kind":"limit","medium":"product","level":"national","parameter_key":"cas:924-16-3","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":"N-Nitroso-di-n-butylamine 924-16-3 0.40 17"}},{"id":"8f89771f60b9e9bd","parameter":"Nitrosodibutylamine","value":"0.0063","value_num":0.0063,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:924-16-3","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":"efb521d1e34cbe83","parameter":"Nitrosodibutylamine, N-","value":"0.0027","value_num":0.0027,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:924-16-3","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":"83adc8595367867f","parameter":"Nitrosodibutylamine","value":"0.22","value_num":0.22,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:924-16-3","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","consumption of organism only: a water designated for fish and shellfish taken from it, not a drinking-water source (fresh or salt)"],"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"}]}