{"query":{"parameter":"carbon tetrachloride","place":"US-ME","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-ME","US"],"parameter_keys":["cas:56-23-5"],"names_matched":[["carbon tetrachloride","cas:56-23-5"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":25,"offset":0,"returned":25,"next_offset":null,"rows":[{"id":"86c4b4e17b1f2be5","parameter":"Carbon Tetrachloride","value":"0.4 qq","value_num":0.4,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:56-23-5","place":["US-ME"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"us_me_wqs","title":"Maine 06-096 CMR Chapter 584, Surface Water Quality Criteria for Toxic Pollutants: Appendix A statewide criteria (freshwater and saltwater CMC/CCC, human health, sustenance fishing), and 38 M.R.S. §465 and §465-B class dissolved oxygen","issuer":"State of Maine, Department of Environmental Protection (Board of Environmental Protection); Maine Legislature (38 M.R.S.)","edition":"Chapter 584 amended February 16, 2020 (filing 2020-024), effective for CWA purposes May 4, 2023 as US EPA posts it; 38 M.R.S. §465 and §465-B effective November 16, 2022","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mewqs-cmr-584.pdf","source_sha256":"61ba59a41aed9d39af2d512f048a351a77f017b26d5f3ced2c91ee5c02209c9b","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"06-096 CMR 584 Appendix A Table I","page":9,"quote":null}},{"id":"65c6b242e7151688","parameter":"Carbon Tetrachloride","value":"3 qq","value_num":3,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:56-23-5","place":["US-ME"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"us_me_wqs","title":"Maine 06-096 CMR Chapter 584, Surface Water Quality Criteria for Toxic Pollutants: Appendix A statewide criteria (freshwater and saltwater CMC/CCC, human health, sustenance fishing), and 38 M.R.S. §465 and §465-B class dissolved oxygen","issuer":"State of Maine, Department of Environmental Protection (Board of Environmental Protection); Maine Legislature (38 M.R.S.)","edition":"Chapter 584 amended February 16, 2020 (filing 2020-024), effective for CWA purposes May 4, 2023 as US EPA posts it; 38 M.R.S. §465 and §465-B effective November 16, 2022","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mewqs-cmr-584.pdf","source_sha256":"61ba59a41aed9d39af2d512f048a351a77f017b26d5f3ced2c91ee5c02209c9b","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"06-096 CMR 584 Appendix A Table I","page":9,"quote":null}},{"id":"e0f935fc87d44a6e","parameter":"Carbon Tetrachloride","value":"3 qq","value_num":3,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:56-23-5","place":["US-ME"],"conditions":["receiving_water is marine"],"cite":{"instrument":"us_me_wqs","title":"Maine 06-096 CMR Chapter 584, Surface Water Quality Criteria for Toxic Pollutants: Appendix A statewide criteria (freshwater and saltwater CMC/CCC, human health, sustenance fishing), and 38 M.R.S. §465 and §465-B class dissolved oxygen","issuer":"State of Maine, Department of Environmental Protection (Board of Environmental Protection); Maine Legislature (38 M.R.S.)","edition":"Chapter 584 amended February 16, 2020 (filing 2020-024), effective for CWA purposes May 4, 2023 as US EPA posts it; 38 M.R.S. §465 and §465-B effective November 16, 2022","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mewqs-cmr-584.pdf","source_sha256":"61ba59a41aed9d39af2d512f048a351a77f017b26d5f3ced2c91ee5c02209c9b","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"06-096 CMR 584 Appendix A Table I","page":9,"quote":null}},{"id":"75606802d62a1d9a","parameter":"Carbon Tetrachloride","value":"0.2 qq","value_num":0.2,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:56-23-5","place":["US-ME"],"conditions":["receiving_water is freshwater","waters subject to a designated use of sustenance fishing (38 M.R.S. §465-A(1)(D), §467(7)(A)(B)(D), §467(13), §467(15)(A)(C)(E)(F), §468(8), §469(7))"],"cite":{"instrument":"us_me_wqs","title":"Maine 06-096 CMR Chapter 584, Surface Water Quality Criteria for Toxic Pollutants: Appendix A statewide criteria (freshwater and saltwater CMC/CCC, human health, sustenance fishing), and 38 M.R.S. §465 and §465-B class dissolved oxygen","issuer":"State of Maine, Department of Environmental Protection (Board of Environmental Protection); Maine Legislature (38 M.R.S.)","edition":"Chapter 584 amended February 16, 2020 (filing 2020-024), effective for CWA purposes May 4, 2023 as US EPA posts it; 38 M.R.S. §465 and §465-B effective November 16, 2022","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mewqs-cmr-584.pdf","source_sha256":"61ba59a41aed9d39af2d512f048a351a77f017b26d5f3ced2c91ee5c02209c9b","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"06-096 CMR 584 Appendix A Table I","page":9,"quote":null}},{"id":"9472b594594c2597","parameter":"Carbon Tetrachloride","value":"0.5 qq","value_num":0.5,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:56-23-5","place":["US-ME"],"conditions":["receiving_water is freshwater","waters subject to a designated use of sustenance fishing (38 M.R.S. §465-A(1)(D), §467(7)(A)(B)(D), §467(13), §467(15)(A)(C)(E)(F), §468(8), §469(7))"],"cite":{"instrument":"us_me_wqs","title":"Maine 06-096 CMR Chapter 584, Surface Water Quality Criteria for Toxic Pollutants: Appendix A statewide criteria (freshwater and saltwater CMC/CCC, human health, sustenance fishing), and 38 M.R.S. §465 and §465-B class dissolved oxygen","issuer":"State of Maine, Department of Environmental Protection (Board of Environmental Protection); Maine Legislature (38 M.R.S.)","edition":"Chapter 584 amended February 16, 2020 (filing 2020-024), effective for CWA purposes May 4, 2023 as US EPA posts it; 38 M.R.S. §465 and §465-B effective November 16, 2022","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mewqs-cmr-584.pdf","source_sha256":"61ba59a41aed9d39af2d512f048a351a77f017b26d5f3ced2c91ee5c02209c9b","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"06-096 CMR 584 Appendix A Table I","page":9,"quote":null}},{"id":"06043d8f5d01516c","parameter":"Carbon Tetrachloride","value":"0.5 qq","value_num":0.5,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:56-23-5","place":["US-ME"],"conditions":["receiving_water is marine","waters subject to a designated use of sustenance fishing (38 M.R.S. §465-A(1)(D), §467(7)(A)(B)(D), §467(13), §467(15)(A)(C)(E)(F), §468(8), §469(7))"],"cite":{"instrument":"us_me_wqs","title":"Maine 06-096 CMR Chapter 584, Surface Water Quality Criteria for Toxic Pollutants: Appendix A statewide criteria (freshwater and saltwater CMC/CCC, human health, sustenance fishing), and 38 M.R.S. §465 and §465-B class dissolved oxygen","issuer":"State of Maine, Department of Environmental Protection (Board of Environmental Protection); Maine Legislature (38 M.R.S.)","edition":"Chapter 584 amended February 16, 2020 (filing 2020-024), effective for CWA purposes May 4, 2023 as US EPA posts it; 38 M.R.S. §465 and §465-B effective November 16, 2022","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/mewqs-cmr-584.pdf","source_sha256":"61ba59a41aed9d39af2d512f048a351a77f017b26d5f3ced2c91ee5c02209c9b","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"06-096 CMR 584 Appendix A Table I","page":9,"quote":null}},{"id":"405e51dff4e3ea2c","parameter":"Carbon Tetrachloride","value":"38","value_num":38,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.91 (BAT)","page":null,"quote":"Carbon Tetrachloride 38 18"}},{"id":"a8b32352ad7061ad","parameter":"Carbon Tetrachloride","value":"38","value_num":38,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.91 (NSPS)","page":null,"quote":"Carbon Tetrachloride 38 18"}},{"id":"25eda00d258ddd1b","parameter":"Carbon Tetrachloride","value":"18","value_num":18,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.91 (BAT)","page":null,"quote":"Carbon Tetrachloride 38 18"}},{"id":"8f7dd5f3930fd1b5","parameter":"Carbon Tetrachloride","value":"18","value_num":18,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.91 (NSPS)","page":null,"quote":"Carbon Tetrachloride 38 18"}},{"id":"70b2aa6ada393bcf","parameter":"Carbon Tetrachloride","value":"380","value_num":380,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.101 (BAT)","page":null,"quote":"Carbon Tetrachloride 380 142"}},{"id":"212fc07560be9274","parameter":"Carbon Tetrachloride","value":"380","value_num":380,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.101 (NSPS)","page":null,"quote":"Carbon Tetrachloride 380 142"}},{"id":"19d291418894e4dc","parameter":"Carbon Tetrachloride","value":"142","value_num":142,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.101 (BAT)","page":null,"quote":"Carbon Tetrachloride 380 142"}},{"id":"00edcb1d5772bf0b","parameter":"Carbon Tetrachloride","value":"142","value_num":142,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.101 (NSPS)","page":null,"quote":"Carbon Tetrachloride 380 142"}},{"id":"fb7280c879a3e530","parameter":"Carbon Tetrachloride","value":"380","value_num":380,"unit":"µg/L","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.111 (PSNS)","page":null,"quote":"Carbon Tetrachloride 380 142"}},{"id":"2db294f34c041732","parameter":"Carbon Tetrachloride","value":"142","value_num":142,"unit":"µg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"sewer","parameter_key":"cas:56-23-5","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","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 414.111 (PSNS)","page":null,"quote":"Carbon Tetrachloride 380 142"}},{"id":"d80a8e9a8b2ca78c","parameter":"Carbon tetrachloride","value":"0.005","value_num":0.005,"unit":"mg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:56-23-5","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level means the maximum permissible level of a contaminant in water which is delivered to any user of a public water system."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"141.61","page":null,"quote":null,"column":"mcl"}},{"id":"ded49d9c95351047","parameter":"Carbon Tetrachloride","value":"0.4","value_num":0.4,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:56-23-5","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","consumption of water + organism: a water designated a drinking-water source and for fish and shellfish (a designated use the state assigns)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); 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