{"query":{"parameter":"tantalum","place":"US-VA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-VA","US"],"parameter_keys":["cas:7440-25-7","cas:7721-01-9","cas:1314-61-0"],"names_matched":[["tantalum","cas:7440-25-7"],["tantalum chloride","cas:7721-01-9"],["tantalum chloride tacl5","cas:7721-01-9"],["tantalum oxide ta2o5","cas:1314-61-0"],["pentoxyde de tantale","cas:1314-61-0","tantale"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":20,"offset":0,"returned":20,"next_offset":null,"rows":[{"id":"0cf3ba6b4010962a","parameter":"Tantalum","value":"103.800","value_num":103.8,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BPT)","(a) Tantalum alloy leach and rinse.","table: BPT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.282 (BPT)","page":null,"quote":"Tantalum 103.800"}},{"id":"678d612f94cd653b","parameter":"Tantalum","value":"9.090","value_num":9.09,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced from leaching","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BPT)","(b) Capacitor leach and rinse.","table: BPT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.282 (BPT)","page":null,"quote":"Tantalum 9.090"}},{"id":"b4102a3685ecd387","parameter":"Tantalum","value":"92.390","value_num":92.39,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BPT)","(c) Tantalum sludge leach and rinse.","table: BPT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.282 (BPT)","page":null,"quote":"Tantalum 92.390"}},{"id":"8c402a33cfa9d5b8","parameter":"Tantalum","value":"0.158","value_num":0.158,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BPT)","(d) Tantalum powder acid wash and rinse.","table: BPT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.282 (BPT)","page":null,"quote":"Tantalum 0.158"}},{"id":"51f088cfeae235a0","parameter":"Tantalum","value":"2.196","value_num":2.196,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BPT)","(e) Leaching wet air pollution control.","table: BPT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.282 (BPT)","page":null,"quote":"Tantalum 2.196"}},{"id":"ba29aa62f24ab946","parameter":"Tantalum","value":"103.800","value_num":103.8,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BAT)","(a) Tantalum alloy leach and rinse.","table: BAT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.283 (BAT)","page":null,"quote":"Tantalum 103.800"}},{"id":"7164a316a87e2e2b","parameter":"Tantalum","value":"9.090","value_num":9.09,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced from leaching","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BAT)","(b) Capacitor leach and rinse.","table: BAT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.283 (BAT)","page":null,"quote":"Tantalum 9.090"}},{"id":"2360606d85cd797b","parameter":"Tantalum","value":"92.390","value_num":92.39,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BAT)","(c) Tantalum sludge leach and rinse.","table: BAT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.283 (BAT)","page":null,"quote":"Tantalum 92.390"}},{"id":"c4b7d964cfdc49a2","parameter":"Tantalum","value":"0.158","value_num":0.158,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BAT)","(d) Tantalum powder acid wash and rinse.","table: BAT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.283 (BAT)","page":null,"quote":"Tantalum 0.158"}},{"id":"5d7b5a50eea7ab2f","parameter":"Tantalum","value":"2.196","value_num":2.196,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","existing sources (BAT)","(e) Leaching wet air pollution control.","table: BAT Limitations for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.283 (BAT)","page":null,"quote":"Tantalum 2.196"}},{"id":"88e0602c92764d49","parameter":"Tantalum","value":"103.800","value_num":103.8,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (NSPS)","(a) Tantalum alloy leach and rinse.","table: NSPS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.284 (NSPS)","page":null,"quote":"Tantalum 103.800"}},{"id":"1933c9eafdf643c8","parameter":"Tantalum","value":"9.090","value_num":9.09,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced from leaching","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (NSPS)","(b) Capacitor leach and rinse.","table: NSPS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.284 (NSPS)","page":null,"quote":"Tantalum 9.090"}},{"id":"f02d84c005bde036","parameter":"Tantalum","value":"92.390","value_num":92.39,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (NSPS)","(c) Tantalum sludge leach and rinse.","table: NSPS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.284 (NSPS)","page":null,"quote":"Tantalum 92.390"}},{"id":"cccc69329451b0a1","parameter":"Tantalum","value":"0.158","value_num":0.158,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (NSPS)","(d) Tantalum powder acid wash and rinse.","table: NSPS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.284 (NSPS)","page":null,"quote":"Tantalum 0.158"}},{"id":"6aa71fb183e00eb3","parameter":"Tantalum","value":"2.196","value_num":2.196,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (NSPS)","(e) Leaching wet air pollution control.","table: NSPS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.284 (NSPS)","page":null,"quote":"Tantalum 2.196"}},{"id":"40dfde1a989d096f","parameter":"Tantalum","value":"103.800","value_num":103.8,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (PSNS)","(a) Tantalum alloy leach and rinse.","table: PSNS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.286 (PSNS)","page":null,"quote":"Tantalum 103.800"}},{"id":"88f4aae7c379926b","parameter":"Tantalum","value":"9.090","value_num":9.09,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced from leaching","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (PSNS)","(b) Capacitor leach and rinse.","table: PSNS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.286 (PSNS)","page":null,"quote":"Tantalum 9.090"}},{"id":"5d895e02a0d81143","parameter":"Tantalum","value":"92.390","value_num":92.39,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (PSNS)","(c) Tantalum sludge leach and rinse.","table: PSNS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.286 (PSNS)","page":null,"quote":"Tantalum 92.390"}},{"id":"eaa96622eef9c6de","parameter":"Tantalum","value":"0.158","value_num":0.158,"unit":"mg/kg (pounds per million pounds) of tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (PSNS)","(d) Tantalum powder acid wash and rinse.","table: PSNS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.286 (PSNS)","page":null,"quote":"Tantalum 0.158"}},{"id":"11c2b7a1f1ec46ae","parameter":"Tantalum","value":"2.196","value_num":2.196,"unit":"mg/kg (pounds per million pounds) of equivalent pure tantalum powder produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7440-25-7","place":["US"],"conditions":["route is sewer","cites is 40 CFR 421","the discharge is of the Subpart Z—Secondary Tantalum Subcategory","new sources (PSNS)","(e) Leaching wet air pollution control.","table: PSNS for the Secondary Tantalum 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":"not verified"},"section":"40 CFR 421.286 (PSNS)","page":null,"quote":"Tantalum 2.196"}}],"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-VA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"tantalum\", 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-VA"},"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"}]}