{"permit":"TX0133183","name":"STUDY BUTTE WATER SUPPLY CORPORATION","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/TX0133183"},"about":[{"label":"What it is","text":"Water Supply (EPA's industry listing)"},{"label":"Where","text":"Terlingua, Texas","href":"https://www.openstreetmap.org/?mlat=29.323888&mlon=-103.62#map=14/29.323888/-103.62"},{"label":"Last 12 months","text":"No values over a limit. 1 of 15 reports filed late"},{"label":"Permit","text":"In force until May 21, 2031"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"TX","sic":"4941","permits":115,"list":"https://passage-data.com/api/v1/permits?state=TX&sic=4941","page":"https://passage-data.com/dmr/s/TX/4941"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"upcoming":[{"parameter":"Chloride [as Cl]","outfall":"001","limit":785,"unit":"mg/L","statistic":"daily average","statistic_code":"DB","begin":"2029-06-01","kind":"new","now":{"median":976,"n":11},"times_limit":1.24},{"parameter":"Chloride [as Cl]","outfall":"001","limit":1664,"unit":"mg/L","statistic":"daily maximum","statistic_code":"DD","begin":"2029-06-01","kind":"new","now":{"median":982,"n":11},"times_limit":0.59}],"limits":[{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Chloride [as Cl]","parameter_code":"00940","statistic":"daily average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Chloride [as Cl]","parameter_code":"00940","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Radium 226, total","parameter_code":"09501","statistic":"daily maximum","qualifier":"<=","value":"60","unit":"pCi/L","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Radium 228, total","parameter_code":"11501","statistic":"daily maximum","qualifier":"<=","value":"60","unit":"pCi/L","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Uranium, total [in pci/L]","parameter_code":"28012","statistic":"daily maximum","qualifier":"<=","value":"300","unit":"pCi/L","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily average","qualifier":"<=","value":".2","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":"<=","value":".4","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Solids, total dissolved","parameter_code":"70295","statistic":"daily average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 001"},{"outfall":"001","parameter":"Solids, total dissolved","parameter_code":"70295","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WATER TREATMENT WASTE - 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":"4941"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=TX&sic=4941","url":"https://passage-data.com/api/v1/permits?state=TX&sic=4941","page":"https://passage-data.com/dmr/s/TX/4941"},{"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":"TX0133183"},"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=TX0133183"},{"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":"TX0133183"},"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=TX0133183"}]}