{"permit":"TX0131938","name":"SF HOUH 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/TX0131938"},"about":[{"label":"What it is","text":"Data Processing And Preparation (EPA's industry listing)"},{"label":"Where","text":"Houston, Texas","href":"https://www.openstreetmap.org/?mlat=30.019166&mlon=-95.863333#map=14/30.019166/-95.863333"},{"label":"Last 12 months","text":"No values over a limit. 1 of 12 reports filed late"},{"label":"Permit","text":"In force until Apr 26, 2029"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-09-30","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"100","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"daily average","qualifier":"<=","value":".016","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"daily maximum","qualifier":"<=","value":".034","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily average","qualifier":"<=","value":".15","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":"<=","value":".225","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Chlorine, free available","parameter_code":"50064","statistic":"daily average","qualifier":"<=","value":".2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Chlorine, free available","parameter_code":"50064","statistic":"single grab sample","qualifier":"<=","value":".5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Sulfate","parameter_code":"81020","statistic":"daily average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"},{"outfall":"001","parameter":"Sulfate","parameter_code":"81020","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"UTILITY WASTEWATER"}],"next":[{"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":"TX0131938"},"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=TX0131938"},{"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":"TX0131938"},"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=TX0131938"}]}