{"query":{"parameter":"methyl ethyl ketone","place":"US-SD","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-SD","US"],"parameter_keys":["cas:108-10-1","cas:78-93-3","cas:1338-23-4","cas:96-29-7"],"names_matched":[["methyl ethyl ketone","cas:108-10-1"],["methyl ethyl ketone","cas:78-93-3"],["methyl ethyl ketone peroxide","cas:1338-23-4"],["methyl ethyl ketoxime ethyl methyl ketone oxime","cas:96-29-7"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":28,"offset":0,"returned":28,"next_offset":null,"rows":[{"id":"8b0d4ef3fc2ebf70","parameter":"4-methyl-2-pentanone","value":"0.5","value_num":0.5,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:108-10-1","place":["US"],"conditions":["route is direct","cites is 40 CFR 439","the discharge is of the Subpart A—Fermentation Products","existing sources (BAT)","table: Effluent Limitations (BAT)"],"cite":{"instrument":"us_40cfr439","title":"40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=439","source_sha256":"109ea8c5ee22a37622c2aa91dd21d79e528a5f9f3e9d01ecc8dc18c25b6afd9e","fetched_at":"2026-10-09","section":"40 CFR 439.14 (BAT)","page":null,"quote":"4-methyl-2-pentanone 0.5 0.2"}},{"id":"f69329c7c9918f95","parameter":"4-methyl-2-pentanone","value":"0.2","value_num":0.2,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:108-10-1","place":["US"],"conditions":["route is direct","cites is 40 CFR 439","the discharge is of the Subpart A—Fermentation Products","existing sources (BAT)","table: Effluent Limitations (BAT)"],"cite":{"instrument":"us_40cfr439","title":"40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=439","source_sha256":"109ea8c5ee22a37622c2aa91dd21d79e528a5f9f3e9d01ecc8dc18c25b6afd9e","fetched_at":"2026-10-09","section":"40 CFR 439.14 (BAT)","page":null,"quote":"4-methyl-2-pentanone 0.5 0.2"}},{"id":"49c19c1c9215d558","parameter":"4-methyl-2-pentanone","value":"0.5","value_num":0.5,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:108-10-1","place":["US"],"conditions":["route is direct","cites is 40 CFR 439","the discharge is of the Subpart A—Fermentation Products","new sources (NSPS)","(a) Any new source subject to this subpart must achieve the following standards:","table: Performance Standards (NSPS)"],"cite":{"instrument":"us_40cfr439","title":"40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=439","source_sha256":"109ea8c5ee22a37622c2aa91dd21d79e528a5f9f3e9d01ecc8dc18c25b6afd9e","fetched_at":"2026-10-09","section":"40 CFR 439.15 (NSPS)","page":null,"quote":"4-methyl-2-pentanone 0.5 0.2"}},{"id":"d7df7456f89c3f3b","parameter":"4-methyl-2-pentanone","value":"0.2","value_num":0.2,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:108-10-1","place":["US"],"conditions":["route is direct","cites is 40 CFR 439","the discharge is of the Subpart A—Fermentation Products","new sources (NSPS)","(a) Any new source subject to this subpart must achieve the following standards:","table: Performance Standards (NSPS)"],"cite":{"instrument":"us_40cfr439","title":"40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=439","source_sha256":"109ea8c5ee22a37622c2aa91dd21d79e528a5f9f3e9d01ecc8dc18c25b6afd9e","fetched_at":"2026-10-09","section":"40 CFR 439.15 (NSPS)","page":null,"quote":"4-methyl-2-pentanone 0.5 0.2"}},{"id":"773abb1f69741fc1","parameter":"4-methyl-2-pentanone","value":"20.7","value_num":20.7,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:108-10-1","place":["US"],"conditions":["route is sewer","cites is 40 CFR 439","the discharge is of the Subpart A—Fermentation Products","existing sources (PSES)","table: Pretreatment Standards (PSES)"],"cite":{"instrument":"us_40cfr439","title":"40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=439","source_sha256":"109ea8c5ee22a37622c2aa91dd21d79e528a5f9f3e9d01ecc8dc18c25b6afd9e","fetched_at":"2026-10-09","section":"40 CFR 439.16 (PSES)","page":null,"quote":"4-methyl-2-pentanone 20.7 8.2"}},{"id":"aa50f9cf39b0a602","parameter":"4-methyl-2-pentanone","value":"8.2","value_num":8.2,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:108-10-1","place":["US"],"conditions":["route is sewer","cites is 40 CFR 439","the discharge is of the Subpart A—Fermentation Products","existing sources (PSES)","table: Pretreatment Standards (PSES)"],"cite":{"instrument":"us_40cfr439","title":"40 CFR Part 439 — PART 439—PHARMACEUTICAL MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=439","source_sha256":"109ea8c5ee22a37622c2aa91dd21d79e528a5f9f3e9d01ecc8dc18c25b6afd9e","fetched_at":"2026-10-09","section":"40 CFR 439.16 (PSES)","page":null,"quote":"4-methyl-2-pentanone 20.7 8.2"}},{"id":"33e1f8648f12c6cc","parameter":"Methyl Isobutyl Ketone (4-methyl-2-pentanone)","value":"33000","value_num":33000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:108-10-1","place":["US"],"conditions":["Resident Soil (mg/kg)"],"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","section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"ae85e35a569b16b2","parameter":"Methyl Isobutyl Ketone (4-methyl-2-pentanone)","value":"140000","value_num":140000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:108-10-1","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"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","section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"dc83d0b531d6d38f","parameter":"Methyl Isobutyl Ketone (4-methyl-2-pentanone)","value":"1.4","value_num":1.4,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:108-10-1","place":["US"],"conditions":["Protection of Groundwater SSLs: Risk-based SSL (mg/kg); 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","section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"763aefb13fc87aaa","parameter":"Methyl Isobutyl Ketone (4-methyl-2-pentanone)","value":"6300","value_num":6300,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:108-10-1","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","section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"4336e8d375bc3561","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart C—Organics Treatment and Recovery","existing sources (BPT)","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.31 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"83613c1f6ab57eab","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart C—Organics Treatment and Recovery","existing sources (BPT)","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.31 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"3108bac8b73149d3","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","existing sources (BPT)","(b) Combined waste receipts from subparts A, B, and C of this part. (1) As provided in § 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT:","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.42 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"013a5c8e52363f0f","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","existing sources (BPT)","(b) Combined waste receipts from subparts A, B, and C of this part. (1) As provided in § 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT:","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.42 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"db591d071343f3b2","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","existing sources (BPT)","(d) Combined waste receipts from subparts A and C of this part. (1) As provided in § 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT:","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.42 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"372dcf7a894f1927","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","existing sources (BPT)","(d) Combined waste receipts from subparts A and C of this part. (1) As provided in § 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT:","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.42 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"bb17b7ef218e4163","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","existing sources (BPT)","(e) Combined waste receipts from subparts B and C of this part. As provided in § 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT:","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.42 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"ad5de2498869566e","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","existing sources (BPT)","(e) Combined waste receipts from subparts B and C of this part. As provided in § 437.42(a), any existing point source subject to this paragraph must achieve the following effluent limitations representing the application of BPT:","table: BPT Limitations"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.42 (BPT)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"5a96f4d1d61e0a8d","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","new sources (NSPS)","(b) Combined waste receipts from subparts A, B and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:","table: Performance Standards"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.45 (NSPS)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"9f87fd2271f9e1d5","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","new sources (NSPS)","(b) Combined waste receipts from subparts A, B and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:","table: Performance Standards"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.45 (NSPS)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"856a250d377831cb","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","new sources (NSPS)","(d) Combined waste receipts from subparts A and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:","table: Performance Standards"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.45 (NSPS)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"5483c52937c4e4fd","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","new sources (NSPS)","(d) Combined waste receipts from subparts A and C of this part. (1) As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:","table: Performance Standards"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.45 (NSPS)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"3326dc274cdd30d0","parameter":"2-Butanone","value":"4.81","value_num":4.81,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","new sources (NSPS)","(e) Combined waste receipts from subparts B and C of this part. As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:","table: Performance Standards"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.45 (NSPS)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"d9379cddec81615b","parameter":"2-Butanone","value":"1.85","value_num":1.85,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:78-93-3","place":["US"],"conditions":["route is direct","cites is 40 CFR 437","the discharge is of the Subpart D—Multiple Wastestreams","new sources (NSPS)","(e) Combined waste receipts from subparts B and C of this part. As provided in § 437.45(a), any new source subject to this paragraph must achieve the following performance standards:","table: Performance Standards"],"cite":{"instrument":"us_40cfr437","title":"40 CFR Part 437 — PART 437—THE CENTRALIZED WASTE TREATMENT POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-10-05","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-10-05/title-40.xml?part=437","source_sha256":"8e0e010c4a042c3d2350a03bd7a7c8a98559afa3a2ffa45a702685c0621afd01","fetched_at":"2026-10-09","section":"40 CFR 437.45 (NSPS)","page":null,"quote":"2-Butanone 4.81 1.85"}},{"id":"3525d1ccc56b92a5","parameter":"Methyl Ethyl Ketone (2-Butanone)","value":"27000","value_num":27000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:78-93-3","place":["US"],"conditions":["Resident Soil (mg/kg)"],"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","section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"0b4f086a2cc1977d","parameter":"Methyl Ethyl Ketone (2-Butanone)","value":"190000","value_num":190000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:78-93-3","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"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","section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"da3cb86cc673e499","parameter":"Methyl Ethyl Ketone (2-Butanone)","value":"1.2","value_num":1.2,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:78-93-3","place":["US"],"conditions":["Protection of Groundwater SSLs: Risk-based SSL (mg/kg); 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","section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"3ae32db561b136b2","parameter":"Methyl Ethyl Ketone (2-Butanone)","value":"5600","value_num":5600,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:78-93-3","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","section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-SD"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"methyl ethyl ketone\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-SD"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}