{"query":{"parameter":"hexachlorobenzene","place":"US-TN","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-TN","US"],"parameter_keys":["cas:118-74-1"],"names_matched":[["hexachlorobenzene","cas:118-74-1"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water"},"total":51,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"e1031d3eba24fab6","parameter":"Hexachlorobenzene","value":"1","value_num":1,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:118-74-1","place":["US-TN"],"conditions":["receiving_water is freshwater","waters designated for domestic water supply (Rule 0400-40-03-.03(1))"],"cite":{"instrument":"us_tn_wqs","title":"Tennessee Rule 0400-40-03-.03 Criteria for Water Uses (Chapter 0400-40-03 General Water Quality Criteria): domestic water supply, fish and aquatic life (CMC/CCC) and recreation human health criteria; TDS, dissolved oxygen and pH","issuer":"State of Tennessee, Department of Environment and Conservation (Board of Water Quality, Oil, and Gas)","edition":"Chapter 0400-40-03 as revised March 2024 (amendments filed December 18, 2023, effective March 17, 2024), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2024-07/tn_wqs_0011_062024.pdf","source_sha256":"4c9ee91b2941f44106d7cbb5009fe40f470c0c530b183b399370ce4567242717","fetched_at":"2026-10-10","section":"Rule 0400-40-03-.03(1)(j)","page":5,"quote":"Barium 2000 Hexachlorobenzene 1"}},{"id":"f19b38dfda7ef43c","parameter":"Hexachlorobenzene","value":"0.0028","value_num":0.0028,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:118-74-1","place":["US-TN"],"conditions":["receiving_water is freshwater","waters designated for both recreation and domestic water supply (Rule 0400-40-03-.03(4)(j), note 1)"],"cite":{"instrument":"us_tn_wqs","title":"Tennessee Rule 0400-40-03-.03 Criteria for Water Uses (Chapter 0400-40-03 General Water Quality Criteria): domestic water supply, fish and aquatic life (CMC/CCC) and recreation human health criteria; TDS, dissolved oxygen and pH","issuer":"State of Tennessee, Department of Environment and Conservation (Board of Water Quality, Oil, and Gas)","edition":"Chapter 0400-40-03 as revised March 2024 (amendments filed December 18, 2023, effective March 17, 2024), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2024-07/tn_wqs_0011_062024.pdf","source_sha256":"4c9ee91b2941f44106d7cbb5009fe40f470c0c530b183b399370ce4567242717","fetched_at":"2026-10-10","section":"Rule 0400-40-03-.03(4)(j)","page":13,"quote":"Hexachlorobenzene (b)(c) 0.0028 0.0029"}},{"id":"e6bc2084f227abbf","parameter":"Hexachlorobenzene","value":"0.0029","value_num":0.0029,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:118-74-1","place":["US-TN"],"conditions":["receiving_water is freshwater","waters designated for recreation (Rule 0400-40-03-.03(4))"],"cite":{"instrument":"us_tn_wqs","title":"Tennessee Rule 0400-40-03-.03 Criteria for Water Uses (Chapter 0400-40-03 General Water Quality Criteria): domestic water supply, fish and aquatic life (CMC/CCC) and recreation human health criteria; TDS, dissolved oxygen and pH","issuer":"State of Tennessee, Department of Environment and Conservation (Board of Water Quality, Oil, and Gas)","edition":"Chapter 0400-40-03 as revised March 2024 (amendments filed December 18, 2023, effective March 17, 2024), as US EPA posts it in effect for CWA purposes","source_url":"https://www.epa.gov/system/files/documents/2024-07/tn_wqs_0011_062024.pdf","source_sha256":"4c9ee91b2941f44106d7cbb5009fe40f470c0c530b183b399370ce4567242717","fetched_at":"2026-10-10","section":"Rule 0400-40-03-.03(4)(j)","page":13,"quote":"Hexachlorobenzene (b)(c) 0.0028 0.0029"}},{"id":"6b94a6f4c8a9779d","parameter":"Hexachlorobenzene","value":"28","value_num":28,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart I—Direct Discharge Point Sources That Use End-of-Pipe Biological Treatment","existing sources (BAT)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal-bearing waste streams for the metals and times the flow from cyanide bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearin…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.91 (BAT)","page":null,"quote":"Hexachlorobenzene 28 15"}},{"id":"718f52b5217a15d7","parameter":"Hexachlorobenzene","value":"28","value_num":28,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart I—Direct Discharge Point Sources That Use End-of-Pipe Biological Treatment","new sources (NSPS)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal-bearing waste streams for the metals and times the flow from cyanide bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearin…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.91 (NSPS)","page":null,"quote":"Hexachlorobenzene 28 15"}},{"id":"6f1388c578a01874","parameter":"Hexachlorobenzene","value":"15","value_num":15,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart I—Direct Discharge Point Sources That Use End-of-Pipe Biological Treatment","existing sources (BAT)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal-bearing waste streams for the metals and times the flow from cyanide bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearin…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.91 (BAT)","page":null,"quote":"Hexachlorobenzene 28 15"}},{"id":"4e600c707210ccf3","parameter":"Hexachlorobenzene","value":"15","value_num":15,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart I—Direct Discharge Point Sources That Use End-of-Pipe Biological Treatment","new sources (NSPS)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal-bearing waste streams for the metals and times the flow from cyanide bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearin…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.91 (NSPS)","page":null,"quote":"Hexachlorobenzene 28 15"}},{"id":"48ad3d4297f1c7e4","parameter":"Hexachlorobenzene","value":"794","value_num":794,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart J—Direct Discharge Point Sources That Do Not Use End-of-Pipe Biological Treatment","existing sources (BAT)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal bearing waste streams for the metals and times the cyanide-bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearing waste st…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.101 (BAT)","page":null,"quote":"Hexachlorobenzene 794 196"}},{"id":"6b343d1ed8e1de35","parameter":"Hexachlorobenzene","value":"794","value_num":794,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart J—Direct Discharge Point Sources That Do Not Use End-of-Pipe Biological Treatment","new sources (NSPS)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal bearing waste streams for the metals and times the cyanide-bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearing waste st…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.101 (NSPS)","page":null,"quote":"Hexachlorobenzene 794 196"}},{"id":"72e39493a11fcf78","parameter":"Hexachlorobenzene","value":"196","value_num":196,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart J—Direct Discharge Point Sources That Do Not Use End-of-Pipe Biological Treatment","existing sources (BAT)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal bearing waste streams for the metals and times the cyanide-bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearing waste st…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.101 (BAT)","page":null,"quote":"Hexachlorobenzene 794 196"}},{"id":"9d6fd4a36e810b17","parameter":"Hexachlorobenzene","value":"196","value_num":196,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is direct","cites is 40 CFR 414","the discharge is of the Subpart J—Direct Discharge Point Sources That Do Not Use End-of-Pipe Biological Treatment","new sources (NSPS)","(b) In the case of chromium, copper, lead, nickel, zinc, and total cyanide, the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal bearing waste streams for the metals and times the cyanide-bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearing waste st…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.101 (NSPS)","page":null,"quote":"Hexachlorobenzene 794 196"}},{"id":"415430ecc78d7eb6","parameter":"Hexachlorobenzene","value":"794","value_num":794,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is sewer","cites is 40 CFR 414","the discharge is of the Subpart K—Indirect Discharge Point Sources","new sources (PSNS)","(b) In the case of lead, zinc, and total cyanide the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal-bearing waste streams for metals and times the flow from the cyanide-bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearing waste streams are defined…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.111 (PSNS)","page":null,"quote":"Hexachlorobenzene 794 196"}},{"id":"0a5346bb04bb73cc","parameter":"Hexachlorobenzene","value":"196","value_num":196,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:118-74-1","place":["US"],"conditions":["(a) The provisions of this part are applicable to process wastewater discharges from all establishments or portions of establishments that manufacture the organic chemicals, plastics, and synthetic fibers (OCPSF) products or product groups covered by subparts B through H of this regulation and are i","route is sewer","cites is 40 CFR 414","the discharge is of the Subpart K—Indirect Discharge Point Sources","new sources (PSNS)","(b) In the case of lead, zinc, and total cyanide the discharge quantity (mass) shall be determined by multiplying the concentrations listed in the following table for these pollutants times the flow from metal-bearing waste streams for metals and times the flow from the cyanide-bearing waste streams for total cyanide. The metal-bearing waste streams and cyanide-bearing waste streams are defined…"],"cite":{"instrument":"us_40cfr414","title":"40 CFR Part 414 — PART 414—ORGANIC CHEMICALS, PLASTICS, AND SYNTHETIC FIBERS","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=414","source_sha256":"8652d1f3d1271a60d9c07a11c5e00c0c1e23da3fb57f25d86e40b9a487b25608","fetched_at":"2026-09-24","section":"40 CFR 414.111 (PSNS)","page":null,"quote":"Hexachlorobenzene 794 196"}},{"id":"fd8e187627bd6861","parameter":"Hexachlorobenzene","value":"0.042","value_num":0.042,"unit":"mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth chlorides","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Y—Primary Rare Earth Metals Subcategory","new sources (NSPS)","(a) Dryer Vent Water Quench and Scrubber.","table: NSPS for the Primary Rare Earth Metals 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","section":"40 CFR 421.274 (NSPS)","page":null,"quote":"Hexachlorobenzene 0.042 0.042"}},{"id":"42414dabe6426e3d","parameter":"Hexachlorobenzene","value":"0.042","value_num":0.042,"unit":"mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth 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0.042"}},{"id":"cd3c10c2f3ce3b89","parameter":"Hexachlorobenzene","value":"0.007","value_num":0.007,"unit":"mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth chlorides","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:118-74-1","place":["US"],"conditions":["route is direct","cites is 40 CFR 421","the discharge is of the Subpart Y—Primary Rare Earth Metals Subcategory","new sources (NSPS)","(b) Dryer vent caustic wet air pollution control.","table: NSPS for the Primary Rare Earth Metals 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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