{"query":{"parameter":"tin","place":"US-MT","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-MT","US"],"parameter_keys":["cas:7440-31-5","name:tin"],"names_matched":[["tin","cas:7440-31-5"],["tin","name:tin"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":134,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"ace3a57d72719948","parameter":"Tin","value":"47000","value_num":47000,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:7440-31-5","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 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Subcategory"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.292 (BPT)","page":null,"quote":"Tin 3.495 2.024"}},{"id":"795370c2948a80b3","parameter":"Tin","value":"0.013","value_num":0.013,"unit":"mg/kg (pounds per million pounds) of dealuminized scrap produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BPT)","(b) Dealuminizing rinse.","table: BPT Limitations for the Secondary Tin Subcategory"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.292 (BPT)","page":null,"quote":"Tin 0.013 0.008"}},{"id":"566e85ca0a292588","parameter":"Tin","value":"0.008","value_num":0.008,"unit":"mg/kg (pounds per million pounds) of dealuminized scrap produced","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BPT)","(b) Dealuminizing rinse.","table: BPT Limitations for the Secondary Tin Subcategory"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.292 (BPT)","page":null,"quote":"Tin 0.013 0.008"}},{"id":"bc7731adaeb5b7ae","parameter":"Tin","value":"1.918","value_num":1.918,"unit":"mg/kg (pounds per million pounds) of neutralized, dewatered tin mud 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1.110"}},{"id":"2188a6f0c4b7b6a7","parameter":"Tin","value":"1.110","value_num":1.11,"unit":"mg/kg (pounds per million pounds) of neutralized, dewatered tin mud produced","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BPT)","(c) Tin mud acid neutralization filtrate.","table: BPT Limitations for the Secondary Tin Subcategory"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 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Subcategory"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.292 (BPT)","page":null,"quote":"Tin 4.542 2.630"}},{"id":"99b4db043f02b754","parameter":"Tin","value":"6.384","value_num":6.384,"unit":"mg/kg (pounds per million pounds) of cathode tin produced","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BPT)","(e) Spent electrowinning solution from new scrap.","table: BPT Limitations for the Secondary Tin Subcategory","column: Minimum for any 1 day"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.292 (BPT)","page":null,"quote":"Tin 6.384 3.696"}},{"id":"f6afb37f4a0d668f","parameter":"Tin","value":"3.696","value_num":3.696,"unit":"mg/kg (pounds per million pounds) of cathode tin 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3.696"}},{"id":"621ea7777af323fe","parameter":"Tin","value":"0.045","value_num":0.045,"unit":"mg/kg (pounds per million pounds) of MSW scrap used as raw material","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BPT)","(f) Spent electrowinning solution from municipal solid waste.","table: BPT Limitations for the Secondary Tin Subcategory","column: Minimum for any 1 day"],"cite":{"instrument":"us_40cfr421","title":"40 CFR Part 421 — PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 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421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.292 (BPT)","page":null,"quote":"Tin 0.045 0.026"}},{"id":"71674fefde615535","parameter":"Tin","value":"21.140","value_num":21.14,"unit":"mg/kg (pounds per million pounds) of tin metal recovered from scrap","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BPT)","(g) Tin hydroxide supernatant from scrap.","table: BPT 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421—NONFERROUS METALS 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=421","source_sha256":"d7cfd73b5bcf0e961e02ec53264492b2371277280003192841b7166b2a5012cf","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 421.293 (BAT)","page":null,"quote":"Tin 0.045 0.026"}},{"id":"4cbae9f2804cf27c","parameter":"Tin","value":"0.026","value_num":0.026,"unit":"mg/kg (pounds per million pounds) of MSW scrap used as raw material","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tin","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart AA—Secondary Tin Subcategory","existing sources (BAT)","(f) Spent electrowinning solution from municipal solid 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