{"permit":"TN0026361","name":"Chapel Hill S.D. STP","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/TN0026361"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Memphis, Tennessee","href":"https://www.openstreetmap.org/?mlat=35.353055&mlon=-89.734166#map=14/35.353055/-89.734166"},{"label":"Last 12 months","text":"Over a limit once, last in December 2025 (BOD, carbonaceous [5 day, 20 C]). 5 of 11 reports filed late"},{"label":"Permit","text":"In force until Jul 31, 2027"}],"renewal_due":{"date":"2027-02-01","when":"Feb 1, 2027 (in 89 days)","urgent":false},"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-02-01","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/TN0026361#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":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":1,"over_by":[["BOD, carbonaceous [5 day, 20 C]",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"BOD, carbonaceous [5 day, 20 C]","times":1,"find_limits":{"parameter":"cbod5","place":"US-TN","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=cbod5&place=US-TN&medium=water_discharge"}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"6","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily 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":"daily 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":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Solids, settleable","parameter_code":"00545","statistic":"daily maximum","qualifier":"<=","value":"1","unit":"mL/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"2.1","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"4.2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","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":"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":"Chlorine, total residual","parameter_code":"50060","statistic":"monthly average","qualifier":"<=","value":".01","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":".02","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"monthly average","qualifier":"<=","value":"126","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":"<=","value":"941","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"SSO, Dry Weather","parameter_code":"51925","statistic":"monthly total","qualifier":"<=","value":"0","unit":"occur/mo","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"SSO, Wet Weather","parameter_code":"51926","statistic":"monthly total","qualifier":"<=","value":"0","unit":"occur/mo","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"daily maximum","qualifier":"<=","value":"20","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Monthly reporting for Outfall 001"}],"next":[{"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":"cbod5","place":"US-TN","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=cbod5&place=US-TN&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=cbod5&place=US-TN&medium=water_discharge","page":"https://passage-data.com/limits/US-TN/cbod5"},{"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":"TN0026361"},"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=TN0026361"},{"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":"TN0026361"},"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=TN0026361"}]}