{"permit":"SD0028654","name":"Brandon WTP","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/SD0028654"},"about":[{"label":"What it is","text":"Water Supply (EPA's industry listing)"},{"label":"Where","text":"Brandon, South Dakota","href":"https://www.openstreetmap.org/?mlat=43.5837330&mlon=-96.583219#map=14/43.5837330/-96.583219"},{"label":"Last 12 months","text":"Over a limit once, last in October 2025 (Conductivity). 2 of 11 reports filed late"},{"label":"Permit","text":"In force until Oct 31, 2029"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"SD","sic":"4941","permits":4,"list":"https://passage-data.com/api/v1/permits?state=SD&sic=4941","page":"https://passage-data.com/dmr/s/SD/4941"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":1,"over_by":[["Conductivity",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Conductivity","times":1,"find_limits":{"parameter":"conductivity","place":"US-SD","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=conductivity&place=US-SD&medium=surface_water"}],"limits":[{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"30-day average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Conductivity","parameter_code":"00094","statistic":"30-day average","qualifier":null,"value":null,"unit":"umho/cm","report_only":true,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Conductivity","parameter_code":"00094","statistic":"30-day average","qualifier":"<=","value":"4375","unit":"umho/cm","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Conductivity","parameter_code":"00094","statistic":"daily maximum","qualifier":null,"value":null,"unit":"umho/cm","report_only":true,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Conductivity","parameter_code":"00094","statistic":"daily maximum","qualifier":"<=","value":"4375","unit":"umho/cm","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Alkalinity, total [as CaCO3]","parameter_code":"00410","statistic":"30-day average","qualifier":"<=","value":"1313","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Alkalinity, total [as CaCO3]","parameter_code":"00410","statistic":"daily maximum","qualifier":"<=","value":"1313","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"30-day average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Hardness, total [as CaCO3]","parameter_code":"00900","statistic":"daily minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Hardness, total [as CaCO3]","parameter_code":"00900","statistic":"30-day average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Radium 226, dissolved","parameter_code":"09503","statistic":"rolling average","qualifier":null,"value":null,"unit":"pCi/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Radium 226, dissolved","parameter_code":"09503","statistic":"daily maximum","qualifier":null,"value":null,"unit":"pCi/L","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":".019","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Solids, total dissolved","parameter_code":"70295","statistic":"30-day average","qualifier":"<=","value":"2500","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"001","parameter":"Solids, total dissolved","parameter_code":"70295","statistic":"daily maximum","qualifier":"<=","value":"4375","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge from the 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"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 8-inch reverse osmosis discharge pipeline to Split Rock Creek."},{"outfall":"002","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"30-day average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge of fully treated drinking water to waters of the state."},{"outfall":"002","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"Any discharge of fully treated drinking water to waters of the state."},{"outfall":"002","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 of fully treated drinking water to waters of the state."},{"outfall":"002","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 of fully treated drinking water to waters of the state."},{"outfall":"002","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge of fully treated drinking water to waters of the state."},{"outfall":"002","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge of fully treated drinking water to waters of the state."},{"outfall":"002","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 of fully treated drinking water to waters of the state."},{"outfall":"002","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":".019","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"Any discharge of fully treated drinking water to waters of the state."},{"outfall":"002","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 of fully treated drinking water to waters of the state."},{"outfall":"002","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 of fully treated drinking water to waters of the state."}],"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":"4941"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=SD&sic=4941","url":"https://passage-data.com/api/v1/permits?state=SD&sic=4941","page":"https://passage-data.com/dmr/s/SD/4941"},{"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":"conductivity","place":"US-SD","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=conductivity&place=US-SD&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=conductivity&place=US-SD&medium=surface_water","page":"https://passage-data.com/limits/US-SD/conductivity"},{"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":"SD0028654"},"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=SD0028654"},{"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":"SD0028654"},"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=SD0028654"}]}