{"permit":"TN0082023","name":"Tennessee Valley Authority (TVA)","state":"TN","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/TN0082023"},"about":[{"label":"What it is","text":"Federal facility · Electric Services (EPA's industry listing) · rated a major discharger by EPA"},{"label":"Where","text":"New Johnsonville, Tennessee","href":"https://www.openstreetmap.org/?mlat=36.030815&mlon=-87.983673#map=14/36.030815/-87.983673"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Sep 30, 2028"}],"renewal_due":null,"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2028-04-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/TN0082023#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":"TN","sic":"4911","permits":15,"list":"https://passage-data.com/api/v1/permits?state=TN&sic=4911","page":"https://passage-data.com/dmr/s/TN/4911"},"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":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily maximum","qualifier":"<=","value":"30.5","unit":"deg C","report_only":false,"enforceable":false,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"value","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Temp. diff. between samp. & upstrm deg. C","parameter_code":"00016","statistic":"daily maximum","qualifier":"<=","value":"3","unit":"deg C","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"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":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"monthly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"daily maximum","qualifier":"<=","value":"20","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Temperature rate of change deg. C/hr","parameter_code":"82234","statistic":"daily maximum","qualifier":"<=","value":"2","unit":"deg C/hr","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 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":"TN","sic":"4911"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=TN&sic=4911","url":"https://passage-data.com/api/v1/permits?state=TN&sic=4911","page":"https://passage-data.com/dmr/s/TN/4911"},{"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":"TN0082023"},"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=TN0082023"},{"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":"TN0082023"},"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=TN0082023"}]}