{"query":{"parameter":"iron","place":"US-TX","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-TX","US"],"parameter_keys":["cas:7439-89-6","name:iron-55","name:iron-59","name:iron - dissolved","name:iron, nickel (h), zinc","cas:13463-40-6"],"names_matched":[["iron","cas:7439-89-6"],["iron 55","name:iron-55"],["iron 59","name:iron-59"],["iron dissolved","name:iron - dissolved"],["iron nickel h zinc","name:iron, nickel (h), zinc"],["iron nickel h zinc h","name:iron, nickel (h), zinc"],["iron pentacarbonyl","cas:13463-40-6"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":253,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"3db5717a47df0da5","parameter":"Iron","value":"3.0E-01","value_num":0.3,"unit":"mg/L","direction":"max","kind":"threshold","medium":"groundwater","level":"regional","parameter_key":"cas:7439-89-6","place":["US-TX"],"conditions":["1 In accordance with §350.72(b), when establishing Tier 1 PCLs for individual COCs for each of the individual and combined human health exposure pathways, the person must evaluate whether the PCLs need to be adjusted to lower concentrations to meet the cumulative carcinogenic risk level and hazard index criteria specified in §350.72(c). For COCs which exhibit both carcinogenic and noncarcinogenic characteristics, they shall be evaluated as both a carcinogen and noncarcinogen when determining whether the PCL established for an individual COC for each of the individual and combined human health exposure pathways needs to be adjusted to a lower concentration to meet the cumulative risk and hazard criteria. The person shall then use the lower of the carcinogenic or noncarcinogenic PCL as the Tier 1 human health PCL. In other words, the Tier 1 PCLs provided in this table for an individual COC should not be used as the final Tier 1 human health PCL for any of the individual or combined exposure pathways in cases where there are more than 10 carcinogenic and/or more than 10 noncarcinogenic COCs within a source medium unless it can be demonstrated that further downward adjustment is not necessary to meet the cumulative risk and hazard criteria."],"cite":{"instrument":"us_tx_trrp_pcl","title":"Texas Risk Reduction Program (30 TAC Chapter 350): Tier 1 protective concentration levels — Table 1 Residential Soil, Table 2 Commercial/Industrial Soil, Table 3 Groundwater (residential and commercial/industrial)","issuer":"Texas Commission on Environmental Quality (TCEQ)","edition":"TRRP Tier 1 PCL tables, Last Revised: February 6, 2025 (TCEQ, PDF version)","source_url":"https://www.tceq.texas.gov/downloads/remediation/trrp/2025-pcl-tables-6-february-2025-final.pdf","source_sha256":"fb90ae0c95044f80cf21c83087ddbdc18ceee259ef8a6531887cc5c454d67686","fetched_at":"2026-10-15","section":"TRRP Table 3, Groundwater, Secondary MCL","page":44,"quote":null}},{"id":"04827ae313003e6d","parameter":"Iron (T)","value":"4.1","value_num":4.1,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (NSPS)","(a) Any new source subject to this subpart producing titanium dioxide by the sulfate process must achieve the following new source performance standards (NSPS):","table: Subpart V—Titanium Dioxide-Sulfate Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.225 (NSPS)","page":null,"quote":"Iron (T) 4.1 1.2"}},{"id":"6bcb1cef71d39d5b","parameter":"Iron (T)","value":"1.2","value_num":1.2,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (NSPS)","(a) Any new source subject to this subpart producing titanium dioxide by the sulfate process must achieve the following new source performance standards (NSPS):","table: Subpart V—Titanium Dioxide-Sulfate Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.225 (NSPS)","page":null,"quote":"Iron (T) 4.1 1.2"}},{"id":"6b16218578499188","parameter":"Iron (T)","value":"0.52","value_num":0.52,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (NSPS)","(b) Any new source subject to this subpart producing titanium dioxide by the chloride process must achieve the following new source performance standards (NSPS):","table: Subpart V—Titanium Dioxide-Chloride Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.225 (NSPS)","page":null,"quote":"Iron (T) 0.52 0.16"}},{"id":"6a55d18e09afcf35","parameter":"Iron (T)","value":"0.16","value_num":0.16,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (NSPS)","(b) Any new source subject to this subpart producing titanium dioxide by the chloride process must achieve the following new source performance standards (NSPS):","table: Subpart V—Titanium Dioxide-Chloride Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.225 (NSPS)","page":null,"quote":"Iron (T) 0.52 0.16"}},{"id":"0e4ac4804aa4a782","parameter":"Iron (T)","value":"0.32","value_num":0.32,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (NSPS)","(c) Any new source subject to this subpart producing titanium dioxide by the simultaneous beneficiation-chlorination (chloride-ilmenite) process must achieve the following new source performance standards (NSPS):","table: Subpart V—Titanium Dioxide-Chloride-Ilmenite Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.225 (NSPS)","page":null,"quote":"Iron (T) 0.32 0.096"}},{"id":"1aa5e974b81a47a9","parameter":"Iron (T)","value":"0.096","value_num":0.096,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (NSPS)","(c) Any new source subject to this subpart producing titanium dioxide by the simultaneous beneficiation-chlorination (chloride-ilmenite) process must achieve the following new source performance standards (NSPS):","table: Subpart V—Titanium Dioxide-Chloride-Ilmenite Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.225 (NSPS)","page":null,"quote":"Iron (T) 0.32 0.096"}},{"id":"079c6080342c2394","parameter":"Iron (T)","value":"8.5","value_num":8.5,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (PSNS)","table: Subpart V—Titanium Dioxide—Sulfate Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.226 (PSNS)","page":null,"quote":"Iron (T) 8.5 2.5"}},{"id":"55b0d5179227f95b","parameter":"Iron (T)","value":"2.5","value_num":2.5,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (PSNS)","table: Subpart V—Titanium Dioxide—Sulfate Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.226 (PSNS)","page":null,"quote":"Iron (T) 8.5 2.5"}},{"id":"2f57596345c8665e","parameter":"Iron (T)","value":"5.3","value_num":5.3,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (PSNS)","table: Subpart V—Titanium Dioxide-Chloride Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.226 (PSNS)","page":null,"quote":"Iron (T) 5.3 1.6"}},{"id":"b262887313c1e485","parameter":"Iron (T)","value":"1.6","value_num":1.6,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (PSNS)","table: Subpart V—Titanium Dioxide-Chloride Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.226 (PSNS)","page":null,"quote":"Iron (T) 5.3 1.6"}},{"id":"6daa063e12b1234a","parameter":"Iron (T)","value":"5.3","value_num":5.3,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (PSNS)","table: Subpart V—Titanium Dioxide-Chloride-Ilmenite Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.226 (PSNS)","page":null,"quote":"Iron (T) 5.3 1.6"}},{"id":"1eface896c74c890","parameter":"Iron (T)","value":"1.6","value_num":1.6,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is sewer","cites is 40 CFR 415","the discharge is of the Subpart V—Titanium Dioxide Production Subcategory","new sources (PSNS)","table: Subpart V—Titanium Dioxide-Chloride-Ilmenite Process"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.226 (PSNS)","page":null,"quote":"Iron (T) 5.3 1.6"}},{"id":"1b98c3cfc88268bc","parameter":"Iron","value":"0.015","value_num":0.015,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AY—Potassium Iodide Production Subcategory","existing sources (BPT)","table: Subpart AY—Potassium Iodide"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.512 (BPT)","page":null,"quote":"Iron 0.015 0.0050"}},{"id":"f43791e5cd7bd80e","parameter":"Iron","value":"0.0050","value_num":0.005,"unit":"Kg/kkg (or pounds per 1,000 lb) of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 415","the discharge is of the Subpart AY—Potassium Iodide Production Subcategory","existing sources (BPT)","table: Subpart AY—Potassium Iodide"],"cite":{"instrument":"us_40cfr415","title":"40 CFR Part 415 — PART 415—INORGANIC CHEMICALS MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=415","source_sha256":"ebf67428a51e85f12785b92d537e6878c5f9838c87722ac2db82b3db673d1e23","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 415.512 (BPT)","page":null,"quote":"Iron 0.015 0.0050"}},{"id":"298b0b559d970944","parameter":"Iron","value":"23.410","value_num":23.41,"unit":"mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BPT)","(a) Leach tailings.","table: BPT Limitations for the Secondary Molybdenum and Vanadium 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 421.222 (BPT)","page":null,"quote":"Iron 23.410 11.902"}},{"id":"62f0ca585ba30db6","parameter":"Iron","value":"11.902","value_num":11.902,"unit":"mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BPT)","(a) Leach tailings.","table: BPT Limitations for the Secondary Molybdenum and Vanadium 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 421.222 (BPT)","page":null,"quote":"Iron 23.410 11.902"}},{"id":"b33ae50b5969157e","parameter":"Iron","value":"69.887","value_num":69.887,"unit":"mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BPT)","(b) Molybdenum filtrate solvent extraction raffinate.","table: BPT Limitations for the Secondary Molybdenum and Vanadium 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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Vanadium 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 421.222 (BPT)","page":null,"quote":"Iron 69.887 35.526"}},{"id":"b1a74ae23a06a06b","parameter":"Iron","value":"0.000","value_num":0,"unit":"mg/kg (pounds per million pounds) of vanadium produced by decomposition","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BPT)","(c) Vanadium decomposition wet air pollution control.","table: BPT Limitations for the Secondary Molybdenum and Vanadium 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 421.222 (BPT)","page":null,"quote":"Iron 0.000 0.000"}},{"id":"97f7553addbe832c","parameter":"Iron","value":"0.000","value_num":0,"unit":"mg/kg (pounds per million pounds) of vanadium produced by 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(BPT)","page":null,"quote":"Iron 0.000 0.000"}},{"id":"05b5a7f7d767f6a1","parameter":"Iron","value":"0.000","value_num":0,"unit":"mg/kg (pounds per million pounds) of molybdenum produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BPT)","(d) Molybdenum drying wet air pollution control.","table: BPT Limitations for the Secondary Molybdenum and Vanadium 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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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 421.222 (BPT)","page":null,"quote":"Iron 0.000 0.000"}},{"id":"a672a24cfa513174","parameter":"Iron","value":"27.936","value_num":27.936,"unit":"mg/kg (pounds per million pounds) of pure molybdenum produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BPT)","(e) Pure Grade 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11.902"}},{"id":"7c8292984d5cc927","parameter":"Iron","value":"11.902","value_num":11.902,"unit":"mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","existing sources (BAT)","(a) Leach Tailings.","table: BAT Limitations for the Secondary Molybdenum and Vanadium 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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35.526"}},{"id":"a4d316a30e73c32b","parameter":"Iron","value":"0.000","value_num":0,"unit":"mg/kg (pounds per million pounds) of molybdenum and vanadium produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","new sources (NSPS)","(c) Vanadium decomposition wet air pollution control.","table: NSPS for the Secondary Molybdenum and Vanadium 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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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 421.224 (NSPS)","page":null,"quote":"Iron 0.000 0.000"}},{"id":"d7cd3531d696c5e0","parameter":"Iron","value":"0.000","value_num":0,"unit":"mg/kg (pounds per million pounds) of molybdenum and vanadium produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart T—Secondary Molybdenum and Vanadium Subcategory","new sources (NSPS)","(d) Molybdenum drying wet air pollution control.","table: NSPS for the Secondary Molybdenum and Vanadium 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 421.224 (NSPS)","page":null,"quote":"Iron 0.000 0.000"}},{"id":"234f3dcd9511c87a","parameter":"Iron","value":"0.000","value_num":0,"unit":"mg/kg (pounds per million pounds) of molybdenum and vanadium produced","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-89-6","place":["US"],"conditions":["route is 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