{"permit":"SD0025437","name":"T & R Electric Supply Co., Inc.","state":"SD","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/SD0025437"},"about":[{"label":"What it is","text":"Transformers, Except Electronic (EPA's industry listing)"},{"label":"Where","text":"Colman, South Dakota","href":"https://www.openstreetmap.org/?mlat=43.9800410&mlon=-96.825136#map=14/43.9800410/-96.825136"},{"label":"Last 12 months","text":"Over a limit 2 times, last in July 2026 (pH). 2 of 11 reports filed late"},{"label":"Permit","text":"Expired Mar 31, 2019; 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":"2018-10-02","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/SD0025437#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":"SD","sic":"36","permits":2,"list":"https://passage-data.com/api/v1/permits?state=SD&sic=36"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":2,"over_by":[["pH",2]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"pH","times":2,"find_limits":{"parameter":"ph","place":"US-SD","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-SD&medium=surface_water"}],"limits":[{"outfall":"001","parameter":"Flow rate","parameter_code":"00056","statistic":"30-day average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Flow rate","parameter_code":"00056","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"30-day average","qualifier":"<=","value":"90","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"135","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Oil and grease, hexane extr method","parameter_code":"00552","statistic":"daily maximum","qualifier":"<=","value":"10","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Polychlorinated biphenyls [PCBs]","parameter_code":"39516","statistic":"daily maximum","qualifier":"<=","value":".014","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Polychlorinated biphenyls [PCBs]","parameter_code":"39516","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ug/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Polychlorinated biphenyls [PCBs]","parameter_code":"39516","statistic":"daily maximum","qualifier":"<","value":".5","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Floating solids, waste or visible foam-visual","parameter_code":"45613","statistic":"daily maximum","qualifier":"<=","value":"0","unit":"abst=0;prst=1","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Flow, total","parameter_code":"51500","statistic":"monthly total","qualifier":null,"value":null,"unit":"Mgal","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Duration of discharge","parameter_code":"81381","statistic":"monthly total","qualifier":null,"value":null,"unit":"d","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."},{"outfall":"001","parameter":"Oil and grease visual","parameter_code":"84066","statistic":"daily maximum","qualifier":"<=","value":"0","unit":"abst=0;prst=1","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the third storm water retention cell to the artifical wetland."}],"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":"SD","sic":"36"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=SD&sic=36","url":"https://passage-data.com/api/v1/permits?state=SD&sic=36"},{"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":"ph","place":"US-SD","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-SD&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-SD&medium=surface_water","page":"https://passage-data.com/limits/US-SD/ph"},{"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":"SD0025437"},"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=SD0025437"},{"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":"SD0025437"},"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=SD0025437"}]}