{"query":{"parameter":"total suspended","place":"US-MN","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-MN","US"],"parameter_keys":["name:total suspended","name:residue: non-filterable","name:solids - total suspended","name:matieres en suspension","name:solidi sospesi totali","name:total suspended solids","name:tss","name:total suspended sediment or turbidity"],"names_matched":[["total suspended","name:total suspended"],["residue non filterable total suspended solids","name:residue: non-filterable"],["solids total suspended","name:solids - total suspended"],["solids total suspended tss","name:solids - total suspended"],["total suspended matter","name:matieres en suspension"],["total suspended matter","name:solidi sospesi totali"],["total suspended matter","name:total suspended solids"],["total suspended matter","name:tss"],["total suspended sediment or turbidity","name:total suspended sediment or turbidity"],["total suspended sediments excluding growing algae","name:matieres en suspension"],["total suspended sediments excluding growing algae","name:solidi sospesi totali"],["total suspended sediments excluding growing algae","name:total suspended solids"],["total suspended sediments excluding growing algae","name:tss"],["total suspended solids","name:matieres en suspension"],["total suspended solids","name:solidi sospesi totali"],["total suspended solids","name:total suspended solids"],["total suspended solids","name:tss"],["total suspended solids tss","name:matieres en suspension"],["total suspended solids tss","name:solidi sospesi totali"],["total suspended solids tss","name:total suspended solids"],["total suspended solids tss","name:tss"],["total suspended solids tss or non filterable solids","name:matieres en suspension"],["total suspended solids tss or non filterable solids","name:solidi sospesi totali"],["total suspended solids tss or non filterable solids","name:total suspended solids"],["total suspended solids tss or non filterable solids","name:tss"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":2976,"names":["TSS","Suspended solids","SS"],"says":"2976 rows share a parameter key with a longer name holding \"total suspended\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"total suspended\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":871,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"d1e61704868ceabe","parameter":"Total suspended solids (TSS)","value":"10","value_num":10,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2A waters: coldwater aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 2; each water's class is listed in 7050.0470)"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 2","page":115,"quote":"Total suspended solids (TSS)​ mg/L​ 10​ NA​ --​ --​ NA​"}},{"id":"9a41ec7ca2e8d35d","parameter":"Total suspended solids (TSS)","value":"15 mg/L","value_num":15,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2Bd waters: cool or warm water aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 3)","North River Nutrient Region"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 3","page":130,"quote":"North River Nutrient Region​ mg/L​ 15​ NA​ -​ -​ NA​"}},{"id":"bc0b23775847d667","parameter":"Total suspended solids (TSS)","value":"30 mg/L","value_num":30,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2Bd waters: cool or warm water aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 3)","Central River Nutrient Region"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 3","page":130,"quote":"Central River Nutrient Region​ mg/L​ 30​ NA​ -​ -​ NA​"}},{"id":"16ceb81fa69ad551","parameter":"Total suspended solids (TSS)","value":"65 mg/L","value_num":65,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2Bd waters: cool or warm water aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 3)","South River Nutrient Region"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 3","page":130,"quote":"South River Nutrient Region​ mg/L​ 65​ NA​ -​ -​ NA​"}},{"id":"d70d0de55cc4775c","parameter":"Total suspended solids (TSS)","value":"100 mg/L","value_num":100,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2Bd waters: cool or warm water aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 3)","Red River mainstem - headwaters to border"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 3","page":130,"quote":"headwaters to border​ mg/L​ 100​ NA​ -​ -​ NA​"}},{"id":"be86c398e7c238e5","parameter":"Total suspended solids (TSS)","value":"32 mg/L","value_num":32,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2Bd waters: cool or warm water aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 3)","Lower Mississippi River mainstem - Pools 2 through 4"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 3","page":131,"quote":"mainstem - Pools 2 through 4​ mg/L​ 32​ NA​ -​ -​ NA​"}},{"id":"b0e1bc39d2a97ed1","parameter":"Total suspended solids (TSS)","value":"30 mg/L","value_num":30,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2Bd waters: cool or warm water aquatic life and habitats, also protected as a source of drinking water (Minn. R. 7050.0222 subp. 3)","Lower Mississippi River mainstem below Lake Pepin"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 3","page":131,"quote":"mainstem below Lake Pepin​ mg/L​ 30​ NA​ -​ -​ NA​"}},{"id":"5c2b0fb811ea70e2","parameter":"Total suspended solids (TSS)","value":"15 mg/L","value_num":15,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2B waters: cool or warm water aquatic life and habitats, not protected as a source of drinking water (Minn. R. 7050.0222 subp. 4); class 2D wetlands take these standards save dissolved oxygen, pH, temperature and chloride (subp. 6)","North River Nutrient Region"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 4","page":149,"quote":"North River Nutrient Region​ mg/L​ 15​ NA​ --​ --​ NA​"}},{"id":"2c5b69b12addd750","parameter":"Total suspended solids (TSS)","value":"30 mg/L","value_num":30,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2B waters: cool or warm water aquatic life and habitats, not protected as a source of drinking water (Minn. R. 7050.0222 subp. 4); class 2D wetlands take these standards save dissolved oxygen, pH, temperature and chloride (subp. 6)","Central River Nutrient Region"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 4","page":149,"quote":"Central River Nutrient Region​ mg/L​ 30​ NA​ --​ --​ NA​"}},{"id":"47a8c10e7f4b5d3d","parameter":"Total suspended solids (TSS)","value":"65 mg/L","value_num":65,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2B waters: cool or warm water aquatic life and habitats, not protected as a source of drinking water (Minn. R. 7050.0222 subp. 4); class 2D wetlands take these standards save dissolved oxygen, pH, temperature and chloride (subp. 6)","South River Nutrient Region"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 4","page":149,"quote":"South River Nutrient Region​ mg/L​ 65​ NA​ --​ --​ NA​"}},{"id":"c771e15a315e608b","parameter":"Total suspended solids (TSS)","value":"100 mg/L","value_num":100,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2B waters: cool or warm water aquatic life and habitats, not protected as a source of drinking water (Minn. R. 7050.0222 subp. 4); class 2D wetlands take these standards save dissolved oxygen, pH, temperature and chloride (subp. 6)","Red River mainstem - headwaters to border"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 4","page":149,"quote":"headwaters to border​ mg/L​ 100​ NA​ --​ --​ NA​"}},{"id":"722a820fe52dde90","parameter":"Total suspended solids (TSS)","value":"32 mg/L","value_num":32,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2B waters: cool or warm water aquatic life and habitats, not protected as a source of drinking water (Minn. R. 7050.0222 subp. 4); class 2D wetlands take these standards save dissolved oxygen, pH, temperature and chloride (subp. 6)","Lower Mississippi River mainstem - Pools 2 through 4"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 4","page":150,"quote":"mainstem - Pools 2 through 4​ mg/L​ 32​ NA​ --​ --​ NA​"}},{"id":"33085c41ba5c2923","parameter":"Total suspended solids (TSS)","value":"30 mg/L","value_num":30,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total suspended solids","place":["US-MN"],"conditions":["receiving_water is freshwater","class 2B waters: cool or warm water aquatic life and habitats, not protected as a source of drinking water (Minn. R. 7050.0222 subp. 4); class 2D wetlands take these standards save dissolved oxygen, pH, temperature and chloride (subp. 6)","Lower Mississippi River mainstem below Lake Pepin"],"cite":{"instrument":"us_mn_wqs","title":"Minnesota Rules ch. 7050 class 2 (2A, 2Bd, 2B/2D), class 4 and class 5 water quality standards, and ch. 7052 Lake Superior basin standards for GLI pollutants","issuer":"State of Minnesota, Pollution Control Agency","edition":"ch. 7050 as US EPA posts it in effect for CWA purposes (effective July 23, 2025; posting cover July 29, 2025), and ch. 7052 (effective June 26, 2018; Revisor publication 2017)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mnwqs-chapter-7050.pdf","source_sha256":"1d4e781bf7b39a79bf6ea8ce64daaa05bb6c4bd5b04a98219d606ae88dbac150","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Minn. R. 7050.0222 subp. 4","page":150,"quote":"mainstem below Lake Pepin​ mg/L​ 30​ NA​ --​ --​ NA​"}},{"id":"c282031defbed230","parameter":"Total suspended","value":"8,795.000","value_num":8795,"unit":"mg/kg (pounds per million pounds) of beryllium carbonate produced as beryllium","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:total suspended","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart O—Primary Beryllium Subcategory","existing sources (BPT)","(c) Beryllium Carbonate Filtrate.","table: BPT Limitations for the Primary Beryllium 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 421.152 (BPT)","page":null,"quote":"Total suspended 8,795.000 4,183.000"}},{"id":"d31251a9f4582c6c","parameter":"Total suspended","value":"4,183.000","value_num":4183,"unit":"mg/kg (pounds per million pounds) of beryllium carbonate produced as beryllium","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:total suspended","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart O—Primary Beryllium Subcategory","existing sources (BPT)","(c) Beryllium Carbonate Filtrate.","table: BPT Limitations for the Primary Beryllium 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 421.152 (BPT)","page":null,"quote":"Total suspended 8,795.000 4,183.000"}},{"id":"d8647ef13e92efcd","parameter":"Total Suspended solids","value":"3.0","value_num":3,"unit":"kg/kkg of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BPT)"],"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 421.22 (BPT)","page":null,"quote":"Total Suspended solids 3.0 1.5"}},{"id":"57718c8d62d871a7","parameter":"Total Suspended solids","value":"1.5","value_num":1.5,"unit":"kg/kkg of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","existing sources (BPT)"],"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 421.22 (BPT)","page":null,"quote":"Total Suspended solids 3.0 1.5"}},{"id":"05fcf642a7673a45","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of paste produced","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(a) Subpart B—Anode and Cathode Paste Plant Wet Air.","table: Pollution Control—NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"d4d4fd2c53ba54d5","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of paste produced","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(a) Subpart B—Anode and Cathode Paste Plant Wet Air.","table: Pollution Control—NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"d4182fb36821df30","parameter":"Total suspended solids","value":"3.135","value_num":3.135,"unit":"mg/kg (pound per million pounds) of anodes cast","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(b) Subpart B—Anode Contact Cooling and Briquette Quenching.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 3.135 2.508"}},{"id":"a1c74318d5a62b2a","parameter":"Total suspended solids","value":"2.508","value_num":2.508,"unit":"mg/kg (pound per million pounds) of anodes cast","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(b) Subpart B—Anode Contact Cooling and Briquette Quenching.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 3.135 2.508"}},{"id":"9a6df1f4c3129918","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of anodes baked","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(c) Subpart B—Anode Bake Plant Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"c9f566af6d613d12","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of anodes baked","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(c) Subpart B—Anode Bake Plant Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"14859aecbaebcc8d","parameter":"Total suspended solids","value":"2,172.000","value_num":2172,"unit":"mg/kg (pound per million pounds) of cryolite recovered","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(d) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Not Commingled With Other Process or Nonprocess Waters).","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 2,172.000 945.800"}},{"id":"8e5d8413569766ca","parameter":"Total suspended solids","value":"945.800","value_num":945.8,"unit":"mg/kg (pound per million pounds) of cryolite recovered","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(d) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Not Commingled With Other Process or Nonprocess Waters).","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 2,172.000 945.800"}},{"id":"6c4a55232ffae269","parameter":"Total suspended solids","value":"2,172.000","value_num":2172,"unit":"mg/kg (pound per million pounds) of cryolite recovered","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(e) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 2,172.000 945.800"}},{"id":"c349d935a910cadb","parameter":"Total suspended solids","value":"945.800","value_num":945.8,"unit":"mg/kg (pound per million pounds) of cryolite recovered","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(e) Subpart B—Cathode Reprocessing (Operated With Dry Potline Scrubbing and Commingled With Other Process or Nonprocess Waters).","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 2,172.000 945.800"}},{"id":"e4e45452f7db5d85","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(f) Subpart B—Potline Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"662274a88eae52b6","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(f) Subpart B—Potline Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"19bd2180ef1af8cf","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(g) Subpart B—Potroom Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"65168425e7d29433","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(g) Subpart B—Potroom Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"901673fa3c713c40","parameter":"Total suspended solids","value":"20.120","value_num":20.12,"unit":"mg/kg (pound per million pounds) aluminum produced from electrolytic reduction","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(h) Subpart B—Potline SO 2 Emissions Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 20.120 16.090"}},{"id":"4bdf745c8ed198f2","parameter":"Total suspended solids","value":"16.090","value_num":16.09,"unit":"mg/kg (pound per million pounds) aluminum produced from electrolytic reduction","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(h) Subpart B—Potline SO 2 Emissions Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 20.120 16.090"}},{"id":"ccaf2a62bc611daf","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(i) Subpart B—Degassing Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"d875753ccbd58795","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(i) Subpart B—Degassing Wet Air Pollution Control.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"dfc0b15c4573485e","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(j) Subpart B—Pot Repair and Pot Soaking.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"a5c8b310555d2194","parameter":"Total suspended solids","value":".000","value_num":0,"unit":"mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(j) Subpart B—Pot Repair and Pot Soaking.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids .000 .000"}},{"id":"0d6a496e3a81e628","parameter":"Total suspended solids","value":"19.940","value_num":19.94,"unit":"mg/kg (pound per million pounds) of aluminum product from direct chill casting","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"name:tss","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart B—Primary Aluminum Smelting Subcategory","new sources (NSPS)","(k) Subpart B—Direct Chill Casting Contact Cooling.","table: NSPS"],"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 421.24 (NSPS)","page":null,"quote":"Total suspended solids 19.940 15.950"}},{"id":"0875485483c131fc","parameter":"Total 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