{"query":{"parameter":"dissolved oxygen","place":"US-VT","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-VT","US"],"parameter_keys":["cas:7782-44-7","name:dissolved oxygen","name:diel dissolved oxygen flux","name:minimum dissolved oxygen","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","name:oxygen - dissolved","name:oxygen, dissolved"],"names_matched":[["dissolved oxygen","cas:7782-44-7"],["dissolved oxygen","name:dissolved oxygen"],["diel dissolved oxygen flux","name:diel dissolved oxygen flux"],["minimum dissolved oxygen","name:minimum dissolved oxygen"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","oxygen dissolved"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc h","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","oxygen dissolved"],["oxygen dissolved","name:oxygen - dissolved","oxygen dissolved"],["oxygen dissolved","name:oxygen, dissolved","oxygen dissolved"],["oxygen dissolved intergravel","name:oxygen, dissolved","oxygen dissolved"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":7,"offset":0,"returned":7,"next_offset":null,"rows":[{"id":"b5900d0a8bd09800","parameter":"Dissolved oxygen","value":"In waters that the Secretary determines are salmonid spawning or nursery areas important to the establishment or maintenance of the fishery resource, not less than 7 mg/l and 75% saturation at all times, nor less than 95% saturation during late egg maturation and larval development of salmonids.","value_num":7,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","cold water fish habitat that the Secretary determines are salmonid spawning or nursery areas (§ 29A-302(5)(A)(i))"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(A)(i)","page":25,"quote":"In waters that the Secretary determines are salmonid spawning or nursery areas important to the establishment or maintenance of the fishery resource, not less than 7 mg/l and 75% saturation at all times, nor less than 95% saturation during late egg maturation and larval development of salmonids."}},{"id":"ebd51c21d2a978bc","parameter":"Dissolved oxygen","value":"In waters that the Secretary determines are salmonid spawning or nursery areas important to the establishment or maintenance of the fishery resource, not less than 7 mg/l and 75% saturation at all times, nor less than 95% saturation during late egg maturation and larval development of salmonids.","value_num":75,"unit":"% saturation","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","cold water fish habitat that the Secretary determines are salmonid spawning or nursery areas (§ 29A-302(5)(A)(i))"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(A)(i)","page":25,"quote":"In waters that the Secretary determines are salmonid spawning or nursery areas important to the establishment or maintenance of the fishery resource, not less than 7 mg/l and 75% saturation at all times, nor less than 95% saturation during late egg maturation and larval development of salmonids."}},{"id":"ff5064bfb81f7d2f","parameter":"Dissolved oxygen","value":"In waters that the Secretary determines are salmonid spawning or nursery areas important to the establishment or maintenance of the fishery resource, not less than 7 mg/l and 75% saturation at all times, nor less than 95% saturation during late egg maturation and larval development of salmonids.","value_num":95,"unit":"% saturation","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","cold water fish habitat that the Secretary determines are salmonid spawning or nursery areas (§ 29A-302(5)(A)(i))","during late egg maturation and larval development of salmonids"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(A)(i)","page":25,"quote":"In waters that the Secretary determines are salmonid spawning or nursery areas important to the establishment or maintenance of the fishery resource, not less than 7 mg/l and 75% saturation at all times, nor less than 95% saturation during late egg maturation and larval development of salmonids."}},{"id":"3a042eeff7be6efd","parameter":"Dissolved oxygen","value":"(ii) All Other Waters. Not less than 6 mg/l and 70% saturation at all times.","value_num":6,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","cold water fish habitat, all other waters (§ 29A-302(5)(A)(ii); Appendix A § A-02: all waters not designated warm water)"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(A)(ii)","page":25,"quote":"(ii) All Other Waters. Not less than 6 mg/l and 70% saturation at all times."}},{"id":"d7456506b18a7ea8","parameter":"Dissolved oxygen","value":"(ii) All Other Waters. Not less than 6 mg/l and 70% saturation at all times.","value_num":70,"unit":"% saturation","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","cold water fish habitat, all other waters (§ 29A-302(5)(A)(ii); Appendix A § A-02: all waters not designated warm water)"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(A)(ii)","page":25,"quote":"(ii) All Other Waters. Not less than 6 mg/l and 70% saturation at all times."}},{"id":"f5721f4c33821e72","parameter":"Dissolved oxygen","value":"(B) Warm Water Fish Habitat. Not less than 5 mg/l and 60% saturation at all times.","value_num":5,"unit":"mg/L","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","warm water fish habitat (§ 29A-302(5)(B); Appendix A § A-01)"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(B)","page":25,"quote":"(B) Warm Water Fish Habitat. Not less than 5 mg/l and 60% saturation at all times."}},{"id":"15c7cc20d47165f0","parameter":"Dissolved oxygen","value":"(B) Warm Water Fish Habitat. Not less than 5 mg/l and 60% saturation at all times.","value_num":60,"unit":"% saturation","statistic":"instant","direction":"min","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["US-VT"],"conditions":["receiving_water is freshwater","warm water fish habitat (§ 29A-302(5)(B); Appendix A § A-01)"],"cite":{"instrument":"us_vt_wqs","title":"Vermont Water Quality Standards, Environmental Protection Rule Chapter 29A: Appendix C criteria for the protection of human health and aquatic biota, § 29A-302(5) dissolved oxygen and § 29A-303(6) pH","issuer":"State of Vermont, Agency of Natural Resources, Department of Environmental Conservation","edition":"effective March 5, 2024, as US EPA posts it in effect for CWA purposes (cover page August 5, 2024; EPA took no action only on the wetland provisions)","source_url":"https://www.epa.gov/sites/default/files/2014-12/documents/vtwqs.pdf","source_sha256":"ed3a16d84d1402d4285dde5d9675435cfddda16d5ec55e3acccd6499441f3101","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Vermont Water Quality Standards § 29A-302(5)(B)","page":25,"quote":"(B) Warm Water Fish Habitat. Not less than 5 mg/l and 60% saturation at all times."}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-VT"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"dissolved oxygen\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-VT"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}