{"permit":"TX0096474","name":"POTAC, LLC","state":"TX","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/TX0096474"},"about":[{"label":"What it is","text":"Petroleum Refining (EPA's industry listing)"},{"label":"Where","text":"Corpus Christi, Texas","href":"https://www.openstreetmap.org/?mlat=27.8175&mlon=-97.491111#map=14/27.8175/-97.491111"},{"label":"Last 12 months","text":"Over a limit 2 times, last in October 2025 (Sulfide, total [as S])"},{"label":"Permit","text":"Expired May 22, 2026; its limits still apply until a new permit is issued, and EPA still expects the reports"}],"renewal_due":null,"renewal_check":{"offered_because":"permit_expired","application_due":"2025-11-23","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/TX0096474#renewal","says":"Each limit a renewal could tighten or add, from the state's water-quality standards and the federal rules for this kind of discharge, each cited to its rule, beside EPA's 12-month record; a rule we do not hold is named, never guessed. A person orders it on the permit's page with their email; it is sent by email within 5 business days."},"sector":{"state":"TX","sic":"29","permits":32,"list":"https://passage-data.com/api/v1/permits?state=TX&sic=29","page":"https://passage-data.com/dmr/s/TX/29"},"limits_from_version":null,"record":{"last_filed":"2026-09-30","over":2,"over_by":[["Sulfide, total [as S]",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Sulfide, total [as S]","times":2,"find_limits":{"parameter":"sulfide","place":"US-TX","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=sulfide&place=US-TX&medium=surface_water"}],"limits":[{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"daily average","qualifier":"<=","value":"26","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"daily maximum","qualifier":"<=","value":"49","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Oxygen demand, chem. [high level] [COD]","parameter_code":"00340","statistic":"daily average","qualifier":"<=","value":"132","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Oxygen demand, chem. 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001"},{"outfall":"001","parameter":"Oil & Grease","parameter_code":"00556","statistic":"daily average","qualifier":"<=","value":"8.6","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Oil & Grease","parameter_code":"00556","statistic":"daily maximum","qualifier":"<=","value":"16","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily average","qualifier":"<=","value":"5.1","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"11","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Sulfide, total [as S]","parameter_code":"00745","statistic":"daily average","qualifier":"<=","value":".16","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Sulfide, total [as S]","parameter_code":"00745","statistic":"daily maximum","qualifier":"<=","value":".32","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"daily average","qualifier":"<=","value":".058","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Chromium, hexavalent [as Cr]","parameter_code":"01032","statistic":"daily maximum","qualifier":"<=","value":".12","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily average","qualifier":"<=","value":".28","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 001"},{"outfall":"001","parameter":"Chromium, total [as Cr]","parameter_code":"01034","statistic":"daily maximum","qualifier":"<=","value":".6","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 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001"},{"outfall":"TXA","parameter":"Whole effluent toxicity","parameter_code":"22414","statistic":"daily maximum","qualifier":"<=","value":"100","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 001"},{"outfall":"TXA","parameter":"LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TIE3E","statistic":"single sample","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 001"},{"outfall":"TXA","parameter":"LC50 Pass/Fail Static 24Hr Acute Menidia menidia","parameter_code":"TIE6B","statistic":"single sample","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 001"}],"next":[{"tool":"list_permits","says":"Screening this industry? list_permits lists every permit of it in this state in one call, each with its page and its get_permit address; `get` is the address to fetch.","arguments":{"state":"TX","sic":"29"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=TX&sic=29","url":"https://passage-data.com/api/v1/permits?state=TX&sic=29","page":"https://passage-data.com/dmr/s/TX/29"},{"tool":"find_limits","says":"What do the rules say about what it went over on? find_limits gives the cited state and federal limits for it, each with its rule; `get` is the address to fetch, and `over_limits` holds one for each parameter.","arguments":{"parameter":"sulfide","place":"US-TX","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=sulfide&place=US-TX&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=sulfide&place=US-TX&medium=surface_water","page":"https://passage-data.com/limits/US-TX/sulfide"},{"tool":"check_dmr","says":"Before your user files this permit's DMR: check_dmr sets each value beside the permit's limit for that period, with EPA's violation rule's verdict.","arguments":{"permit":"TX0096474"},"needs":{"period_end":"The reporting period: its month (2026-09).","values":"The period's values as your user will file them: [{outfall, parameter, statistic, value, unit}, ...]."},"post":"/api/v1/dmr/check","url":"https://passage-data.com/api/v1/dmr/check","page":"https://passage-data.com/dmr/?permit=TX0096474"},{"tool":"fill_dmr","says":"Has your user the plant's raw daily results? fill_dmr computes the period's DMR values from them, each with the rows it came from.","arguments":{"permit":"TX0096474"},"needs":{"period_end":"The reporting period: its month (2026-09).","rows":"The plant's results: [{date, parameter, value, unit, point}, ...]; or `table`, the lab's or plant's export as text."},"post":"/api/v1/dmr/fill","url":"https://passage-data.com/api/v1/dmr/fill","page":"https://passage-data.com/dmr/?permit=TX0096474"}]}