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Application Sites (Industrial Activity Code “LF”) except those with discharges subject to effluent limitations in 40 CFR Part 445 Subpart B"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":41,"quote":null}},{"id":"d0463f3a379d58d1","parameter":"Total Suspended Solids (TSS)","value":"88 mg/L, daily max","value_num":88,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is L","Discharges from non-hazardous waste landfills subject to effluent limitations incorporated at LAC 33:IX.4903 - 40 CFR Part 445 Subpart B (Industrial Activity Code “LF”)42"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":42,"quote":null}},{"id":"97373d64d670cb34","parameter":"Total Suspended Solids (TSS)","value":"27 mg/L, monthly avg.","value_num":27,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is L","Discharges from non-hazardous waste landfills subject to effluent limitations incorporated at LAC 33:IX.4903 - 40 CFR Part 445 Subpart B (Industrial Activity Code “LF”)42"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":42,"quote":null}},{"id":"ca83d5c30daeffb1","parameter":"Total Suspended Solids (TSS)","value":"100.0 mg/L","value_num":100,"unit":"mg/L","direction":"max","kind":"benchmark","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is M","sic in 5015"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":43,"quote":null}},{"id":"617606e710a4e25d","parameter":"Total Suspended Solids (TSS)","value":"100 mg/L","value_num":100,"unit":"mg/L","direction":"max","kind":"benchmark","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is N","sic in 5093"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":43,"quote":null}},{"id":"f9d64a47ebabbf81","parameter":"Total Suspended Solids (TSS)","value":"50 mg/L47, daily max","value_num":50,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is O","Discharges from coal storage piles at Steam Electric Generating Facilities (40 CFR 423)"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":43,"quote":null}},{"id":"20e6fc410d22029e","parameter":"Total Suspended Solids (TSS)","value":"100 mg/L","value_num":100,"unit":"mg/L","direction":"max","kind":"benchmark","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is U","sic in ['2041', '2048']"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":45,"quote":null}},{"id":"38543b03505201d1","parameter":"Total Suspended Solids (TSS)","value":"100 mg/L","value_num":100,"unit":"mg/L","direction":"max","kind":"benchmark","medium":"water_discharge","level":"regional","stream":"stormwater","parameter_key":"name:total suspended solids","place":["US-LA"],"conditions":["coverage is LAR050000","stream is stormwater","sector is U","sic in ['2074', '2079']"],"cite":{"instrument":"us_la_lar050000","title":"LPDES Multi-Sector General Permit LAR050000 — storm water discharges associated with industrial activity (AI# 86163)","issuer":"Louisiana Department of Environmental Quality (LDEQ)","edition":"October 2021 (modified pages)","source_url":"https://www.deq.louisiana.gov/ (LDEQ general permit LAR050000, October 2021, held in the corpus)","source_sha256":"d8dcaa388df45cc4e55bc3b04b2e77808a244d52dba7faeac287f4d24bde3251","fetched_at":"2026-09-23","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Table 3","page":45,"quote":null}},{"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 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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 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