{"permit":"SC0037753","name":"GRAND STRAND WATER & SEWER AUTHORITY","state":"SC","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/SC0037753"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Bucksport, South Carolina","href":"https://www.openstreetmap.org/?mlat=33.6422&mlon=-79.1103#map=14/33.6422/-79.1103"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Jul 31, 2030"}],"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":[],"upcoming":[{"parameter":"Chlorine, total residual","outfall":"01D","limit":0.417,"unit":"mg/L","statistic":"daily maximum","statistic_code":"DD","begin":"2030-06-01","kind":"tighter","now":{"median":0.2,"n":12},"times_limit":0.48},{"parameter":"Chlorine, total residual","outfall":"01D","limit":0.242,"unit":"mg/L","statistic":"monthly average","statistic_code":"MK","begin":"2030-06-01","kind":"tighter","now":{"median":0.164,"n":12},"times_limit":0.678},{"parameter":"Chlorine, total residual","outfall":"01D","limit":89.7,"unit":"lb/d","statistic":"monthly average","statistic_code":"MK","begin":"2030-06-01","kind":"tighter","now":{"median":34.45,"n":12},"times_limit":0.384}],"limits":[{"outfall":"01A","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":"01A1"},{"outfall":"01A","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01A1"},{"outfall":"01A","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"4841","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01A1"},{"outfall":"01A","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"7262","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":"<=","value":"22.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"2421","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":"<=","value":"3631","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","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":"01A1"},{"outfall":"01A","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"weekly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"17.8","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"37.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"26.7","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"4034","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"2873","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"6052","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","NOV","DEC"],"limit_set":"01A1"},{"outfall":"01A","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"4309","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"01A1"},{"outfall":"01A","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"01A1"},{"outfall":"01A","parameter":"Carbonaceous oxygen demand, % removal","parameter_code":"81383","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"01A1"},{"outfall":"01B","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"minimum","qualifier":">=","value":"6","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"8.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01B","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":"01B1"},{"outfall":"01B","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"weekly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"01B1"},{"outfall":"01C","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"minimum","qualifier":">=","value":"6","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"8.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","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":"01C1"},{"outfall":"01C","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"5604","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"8407","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"11","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":"<=","value":"16.5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"2055","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":"<=","value":"3082","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"weekly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","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":"01C1"},{"outfall":"01C","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"weekly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"40","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"4670","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"7473","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01C","parameter":"Carbonaceous oxygen demand, % removal","parameter_code":"81383","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"01C1"},{"outfall":"01D","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"monthly average","qualifier":"<=","value":"5463.58","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"Oxygen demand, ultimate","parameter_code":"00181","statistic":"weekly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"monthly average","qualifier":"<=","value":".258","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":".446","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"monthly average","qualifier":"<=","value":"90.53","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":"156.7","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"E. coli","parameter_code":"51040","statistic":"30-day geometric mean","qualifier":"<=","value":"126","unit":"MPN/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":"<=","value":"349","unit":"MPN/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"E. coli","parameter_code":"51040","statistic":"30-day geometric mean","qualifier":"<=","value":"126","unit":"MPN/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":"<=","value":"800","unit":"MPN/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"01D1"},{"outfall":"01D","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01D2"},{"outfall":"01D","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"01D2"},{"outfall":"01D","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"monthly average","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01D2"},{"outfall":"01D","parameter":"Mercury, total [as Hg]","parameter_code":"71900","statistic":"daily maximum","qualifier":null,"value":null,"unit":"lb/d","report_only":true,"enforceable":true,"months":"all","limit_set":"01D2"},{"outfall":"01D","parameter":"LC50 Static 48Hr Acute Ceriodaphnia dubia","parameter_code":"TAA3B","statistic":"daily minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"01D3"},{"outfall":"01D","parameter":"%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TCP3B","statistic":"monthly average","qualifier":"<=","value":"25","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"01D3"},{"outfall":"01D","parameter":"%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TCP3B","statistic":"daily maximum","qualifier":"<=","value":"40","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"01D3"},{"outfall":"01D","parameter":"IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia","parameter_code":"TRP3B","statistic":"daily minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"01D3"}],"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":"SC0037753"},"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=SC0037753"},{"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":"SC0037753"},"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=SC0037753"}]}