{"query":{"parameter":"sulfate","place":"US-OK","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-OK","US"],"parameter_keys":["cas:14808-79-8","cas:7757-82-6","cas:615-50-9","cas:68039-12-3","cas:342573-75-5","cas:24694-40-4","cas:7376-31-0","cas:56633-27-3","cas:60828-92-4","cas:2235-54-3","cas:6369-59-1","cas:39085-66-0","name:chloride + sulfate","cas:19834-02-7","cas:64-67-5","cas:43222-48-6","cas:77-78-1","cas:115-29-7","cas:1031-07-8","cas:20261-61-4","cas:302-01-2","cas:10034-93-2","cas:68649-55-8","cas:32612-48-9","cas:68037-05-8","cas:68891-29-2","cas:27731-61-9","cas:31691-97-1","cas:68585-47-7","cas:55566-30-8","cas:18785-72-3","cas:7446-18-6","cas:72379-24-9","cas:72968-31-1"],"names_matched":[["sulfate","cas:14808-79-8"],["sulfate","cas:7757-82-6"],["1 4 benzenediamine 2 methyl sulfate 1 1","cas:615-50-9"],["1 ethyl 2 8 heptadecenyl 4 5 dihydro 3 2 hydroxyethyl 1h imidazolium ethyl sulfate","cas:68039-12-3"],["1 ethyl 3 methylimidazolium ethyl sulfate","cas:342573-75-5"],["1h benzotriazole sulfate","cas:24694-40-4"],["1h benzotriazole sulfate 1 1","cas:24694-40-4"],["1h imidazolium 1 ethyl 2 8 heptadecenyl 4 5 dihydro 3 2 hydroxyethyl ethyl sulfate salt","cas:68039-12-3"],["2 2 2 nitrilotriethanol sulfate","cas:7376-31-0"],["2 aminoethanol sulfate","cas:56633-27-3"],["2 propanamine sulfate","cas:60828-92-4"],["ammonium lauryl sulfate","cas:2235-54-3"],["benzenediamine 2 methyl sulfate 1 4","cas:6369-59-1"],["butylamine sulfate","cas:39085-66-0"],["chloride sulfate","name:chloride + sulfate"],["cyclohexylammonium sulfate","cas:19834-02-7"],["diethyl sulfate","cas:64-67-5"],["difenzoquat methyl sulfate","cas:43222-48-6"],["dimethyl sulfate","cas:77-78-1"],["endosulfan alpha beta sulfate","cas:115-29-7"],["endosulfan sulfate","cas:1031-07-8"],["ethanol 2 2 2 nitrilotris sulfate 2 1 salt","cas:20261-61-4"],["ethanol 2 2 2 nitrilotris sulfate salt","cas:7376-31-0"],["ethanol 2 amino sulfate salt","cas:56633-27-3"],["hydrazine hydrazine sulfate","cas:302-01-2"],["hydrazine sulfate","cas:10034-93-2"],["hydrazine sulfate 1 1","cas:10034-93-2"],["isopropylamine sulfate","cas:60828-92-4"],["methylbenzene 1 4 diamine sulfate 2","cas:615-50-9"],["polyethylene glycol branched nonylphenyl ether sulfate ammonium salt","cas:68649-55-8"],["polyethylene glycol lauryl ether sulfate ammonium salt","cas:32612-48-9"],["polyethylene glycol mono c6 10 alkyl ether sulfate ammonium salt","cas:68037-05-8"],["polyethylene glycol mono c8 10 alkyl ether sulfate ammonium salt","cas:68891-29-2"],["polyethylene glycol myristyl ether sulfate ammonium salt","cas:27731-61-9"],["sel d ammonium du copolymere d ethylene glycol et du sulfate de nonyl 4 benzene","cas:31691-97-1"],["sel sodique du sulfate de monoalkyle c10 c16","cas:68585-47-7"],["sulfate de diethyle","cas:64-67-5"],["sulfate de dimethyle","cas:77-78-1"],["sulfate de laureth 5 et d ammonium","cas:32612-48-9"],["sulfate de tetrakis hydroxymethyl phosphonium 1 2","cas:55566-30-8"],["sulfate total as so4","cas:18785-72-3"],["tetrakis hydroxymethyl phosphonium sulfate","cas:55566-30-8"],["thallium i sulfate","cas:7446-18-6"],["thallium l sulfate","cas:7446-18-6"],["thallium sulfate","cas:7446-18-6"],["thallium sulfate as thallium","cas:7446-18-6"],["toluene 2 5 diamine sulfate","cas:6369-59-1"],["triethanolamine sulfate","cas:20261-61-4"],["alcohols c8 10 ethoxylated sulfates ammonium salts","cas:68891-29-2","sulfates"],["amines c12 14 tert alkyl ethoxylated sulfates sodium salts","cas:72379-24-9","sulfates"],["amines tallow alkyl ethoxylated sulfates","cas:72968-31-1","sulfates"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":36,"names":["Endosulfan Sulfate","Endosulfan","Benzenediamine-2-methyl sulfate, 1,4-","Difenzoquat","Hydrazine","Methylbenzene-1,4-diamine sulfate, 2-","Hydrazine Sulfate","Thallium Sulfate"],"says":"36 rows share a parameter key with a longer name holding \"sulfate\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"sulfate\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":113,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"87568e2b907bcce2","parameter":"Sulfate","value":"250 (Appendix F prints 104; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 120400 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"0d0d4a8515bb2fda","parameter":"Sulfate","value":"250 (Appendix F prints 134; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 120400 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"12ab6852440468fa","parameter":"Sulfate","value":"250 (Appendix F prints 140; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 120410 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"bbcd4d5aae446dca","parameter":"Sulfate","value":"250 (Appendix F prints 172; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 120410 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"b0ffc243ad918b66","parameter":"Sulfate","value":"250 (Appendix F prints 147; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 120420 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"6353efab92ebfb87","parameter":"Sulfate","value":"250 (Appendix F prints 178; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 120420 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"0644317662180003","parameter":"Sulfate","value":"250 (Appendix F prints 50; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121300 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"951dab5bb6dcb310","parameter":"Sulfate","value":"250 (Appendix F prints 65; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121300 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":124,"quote":null}},{"id":"f2e2dd5599df691d","parameter":"Sulfate","value":"250 (Appendix F prints 34; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121400 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"a8981399ed1938c1","parameter":"Sulfate","value":"250 (Appendix F prints 45; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121400 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"09943c19fb56dc9c","parameter":"Sulfate","value":"250 (Appendix F prints 69; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121500 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"95c675ab4d450568","parameter":"Sulfate","value":"250 (Appendix F prints 94; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121500 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"465e34e0d8b42e29","parameter":"Sulfate","value":"250 (Appendix F prints 88; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121510 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"f5588e25a294ccd1","parameter":"Sulfate","value":"250 (Appendix F prints 135; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121510 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"1b50d9ad47b32774","parameter":"Sulfate","value":"250 (Appendix F prints 59; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121600 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"bdd996e1be65af01","parameter":"Sulfate","value":"250 (Appendix F prints 83; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121600 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"9ea57abee72d31fc","parameter":"Sulfate","value":"250 (Appendix F prints 121; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121610 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"05a6e908cc4953e9","parameter":"Sulfate","value":"250 (Appendix F prints 162; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121610 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"0554b4bff8178c6b","parameter":"Sulfate","value":"250 (Appendix F prints 25; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121700 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"b87145f21eaf5fb9","parameter":"Sulfate","value":"250 (Appendix F prints 37; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 121700 (Basin 1, Middle Arkansas River) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"a6e6015a05799082","parameter":"Sulfate","value":"250 (Appendix F prints 35; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220100 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"392c1fe0deaa5238","parameter":"Sulfate","value":"250 (Appendix F prints 49; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220100 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":125,"quote":null}},{"id":"22d6a4851530ec45","parameter":"Sulfate","value":"250 (Appendix F prints 71; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220200 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"15902d9674f8cb22","parameter":"Sulfate","value":"250 (Appendix F prints 87; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220200 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"bd148609067b96c6","parameter":"Sulfate","value":"250 (Appendix F prints 52; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220300 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"4b00929afd627386","parameter":"Sulfate","value":"250 (Appendix F prints 60; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220300 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"4aff1ccf824bc72b","parameter":"Sulfate","value":"250 (Appendix F prints 182; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220600 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"d895d0587f29248d","parameter":"Sulfate","value":"255","value_num":255,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 220600 (Basin 2, Lower Arkansas River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"9f0772931b9e6f77","parameter":"Sulfate","value":"521","value_num":521,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310800 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"5505f6503a380c4b","parameter":"Sulfate","value":"702","value_num":702,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310800 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"e8e75e5348769d85","parameter":"Sulfate","value":"755","value_num":755,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310810 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"5cbab45d5f7855d9","parameter":"Sulfate","value":"958","value_num":958,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310810 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"bea7e669803b13ac","parameter":"Sulfate","value":"1130","value_num":1130,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310830 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"4149c4553ed69ddd","parameter":"Sulfate","value":"1404","value_num":1404,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310830 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"c2aac56415e9cef1","parameter":"Sulfate","value":"1281","value_num":1281,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310840 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"99e3f9e599c0c608","parameter":"Sulfate","value":"1654","value_num":1654,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 310840 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":126,"quote":null}},{"id":"188f9d0d2ee92c95","parameter":"Sulfate","value":"485","value_num":485,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311100 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"54d10870254fc04e","parameter":"Sulfate","value":"666","value_num":666,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311100 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"50e845b2ade9d032","parameter":"Sulfate","value":"478","value_num":478,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311200 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"af3924dceb50ccf9","parameter":"Sulfate","value":"638","value_num":638,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311200 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"fc0cd065ebdf0853","parameter":"Sulfate","value":"344","value_num":344,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311210 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"45d8d4f8c215d364","parameter":"Sulfate","value":"478","value_num":478,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311210 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"ed26854f110dbaf5","parameter":"Sulfate","value":"250 (Appendix F prints 109; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311300 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"60d636c9aa675433","parameter":"Sulfate","value":"250 (Appendix F prints 138; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311300 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"094c9b131577b639","parameter":"Sulfate","value":"250 (Appendix F prints 128; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311300, trib to Nine Mile Ck (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"eb02b30fd9ea4105","parameter":"Sulfate","value":"250 (Appendix F prints 145; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311300, trib to Nine Mile Ck (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"acf68809801fbbab","parameter":"Sulfate","value":"250 (Appendix F prints 124; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311300, Nine Mile Ck (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"4588897fc5cb0521","parameter":"Sulfate","value":"250 (Appendix F prints 150; OAC 252:730-5-13(g): not required below 250)","value_num":250,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311300, Nine Mile Ck (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"e2256f7978e98f55","parameter":"Sulfate","value":"781","value_num":781,"unit":"mg/L","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311500 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). 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Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}},{"id":"72d7704dace684f9","parameter":"Sulfate","value":"1040","value_num":1040,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["US-OK"],"conditions":["receiving_water is freshwater","WQM segment 311500 (Basin 3, Upper Red River Basin) (a water's segment: the first six digits of its Waterbody ID number in Appendix A; not evaluated)","waters designated Agriculture in Appendix A (the Irrigation Agriculture subcategory applies by default: EPA cover, February 10, 2025) (a water's designated uses: Appendix A; not evaluated)"],"cite":{"instrument":"us_ok_wqs","title":"Oklahoma's Water Quality Standards (OAC 252:730): Appendix G Tables 1-2 numerical criteria by beneficial use, and the numerical criteria of 252:730-5-10, 5-12 and 5-19, and Appendix F chloride, sulfate and TDS by WQM segment (252:730-5-13)","issuer":"State of Oklahoma, Department of Environmental Quality (Environmental Quality Board)","edition":"OAC 252:730 as DEQ codifies it (Board adoption February 17, 2023, effective September 15, 2023; DEQ's own PDF, born-digital). US EPA's posting in effect for CWA purposes (effective December 18, 2024, cover February 10, 2025) is an OCR'd scan of the later edition; its Appendix G carries no amendment after September 15, 2023. EPA's exceptions are honoured: the perchlorate 'fish consumption and water' 9 µg/L (no action) and the Livestock Agriculture subcategory (disapproved) are not held; Appendix E site-specific criteria for Poteau and Idabel are not held. Appendix F (amended effective 9-15-24 in EPA's posting) prints the same values as DEQ's 2023 PDF; its eight-digit sub-watershed segments (note (4)) carry EPA's no action and are not held","source_url":"https://oklahoma.gov/content/dam/ok/en/deq/documents/deqmainresources/730.pdf","source_sha256":"483572da2c80c9686956047426b41f44e56388c1ab5873c5ce38b6d905b70b40","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"OAC 252:730 Appendix F","page":127,"quote":null}}],"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-OK"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"sulfate\", 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-OK"},"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"}]}