{"permit":"MA0100498","name":"MARLBOROUGH EASTERLY W W T P","state":"MA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MA0100498"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Marlborough, Massachusetts","href":"https://www.openstreetmap.org/?mlat=42.3532651&mlon=-71.4950183#map=14/42.3532651/-71.4950183"},{"label":"Last 12 months","text":"Over a limit 6 times, last in September 2026 (Phosphorus, total [as P]; Nitrogen, ammonia total [as N]; E. coli)"},{"label":"Permit","text":"In force until Mar 31, 2027"}],"renewal_due":{"date":"2026-10-02","when":"Oct 2, 2026, overdue","urgent":true},"renewal_check":{"offered_because":"application_overdue","application_due":"2026-10-02","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MA0100498#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":"2026-09-30","over":6,"over_by":[["Phosphorus, total [as P]",3],["Nitrogen, ammonia total [as N]",2],["E. coli",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Phosphorus, total [as P]","times":3,"find_limits":{"parameter":"phosphorus","place":"US-MA","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=phosphorus&place=US-MA&medium=surface_water"},{"parameter":"Nitrogen, ammonia total [as N]","times":2,"find_limits":{"parameter":"ammonia","place":"US-MA","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ammonia&place=US-MA&medium=surface_water"}],"limits":[{"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":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Oxygen, dissolved percent saturation","parameter_code":"00301","statistic":"minimum","qualifier":">=","value":"80","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"8.3","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":null,"value":null,"unit":"SU","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"20","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"20","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"25","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"688","unit":"lb/d","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"917","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"917","unit":"lb/d","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"1147","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Ammonia nitrogen, total, [as N] 30 day","parameter_code":"00609","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":".5","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":"<=","value":"4.4","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":"<=","value":".75","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"weekly average","qualifier":"<=","value":"4.4","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"daily maximum","qualifier":"<=","value":"1","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"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":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"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":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrite + Nitrate total [as N]","parameter_code":"00630","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrite + Nitrate total [as N]","parameter_code":"00630","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Nitrite + Nitrate total [as N]","parameter_code":"00630","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":"<=","value":".05","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly average","qualifier":"<=","value":".2","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Carbon, tot organic [TOC]","parameter_code":"00680","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Carbon, dissolved organic [as C]","parameter_code":"00681","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Hardness, total [as CaCO3]","parameter_code":"00900","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Hardness, total [as CaCO3]","parameter_code":"00900","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Cadmium, total [as Cd]","parameter_code":"01027","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"monthly average","qualifier":"<=","value":"16","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Copper, total [as Cu]","parameter_code":"01042","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Lead, total [as Pb]","parameter_code":"01051","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Lead, total [as Pb]","parameter_code":"01051","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Nickel, total [as Ni]","parameter_code":"01067","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Zinc, total [as Zn]","parameter_code":"01092","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Zinc, total [as Zn]","parameter_code":"01092","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Aluminum, total [as Al]","parameter_code":"01105","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Aluminum, total [as Al]","parameter_code":"01105","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"AMBIENT TOXICITY TEST MONITORING 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":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly average","qualifier":"<=","value":"5.5","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT 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":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"monthly average","qualifier":"<=","value":"11","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<=","value":"19","unit":"ug/L","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"monthly geometric mean","qualifier":"<=","value":"126","unit":"CFU/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"daily maximum","qualifier":"<=","value":"409","unit":"CFU/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"6","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"17","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"9","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"22","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"daily maximum","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"daily maximum","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"275","unit":"lb/d","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":"<=","value":"780","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"daily maximum","qualifier":"<=","value":"413","unit":"lb/d","report_only":false,"enforceable":true,"months":["APR","MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"weekly average","qualifier":"<=","value":"1009","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","NOV","DEC"],"limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, carbonaceous [5 day, 20 C]","parameter_code":"80082","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"BOD, 5-day, percent removal","parameter_code":"81010","statistic":"monthly average minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","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":"TREATED EFFLUENT OUTFALL 001"},{"outfall":"001","parameter":"LC50 Static 48Hr Acute Ceriodaphnia dubia","parameter_code":"TAA3B","statistic":"minimum","qualifier":">=","value":"100","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"LC50 Static 48Hr Acute Pimephales promelas","parameter_code":"TAA6C","statistic":"minimum","qualifier":">=","value":"100","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia","parameter_code":"TBP3B","statistic":"minimum","qualifier":">=","value":"99","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"001","parameter":"Noel Statre 7Day Chronic Pimephales","parameter_code":"TBP6C","statistic":"minimum","qualifier":">=","value":"99","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"WHOLE EFFLUENT TOXICITY MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorooctanoic acid (PFOA)","parameter_code":"51521","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY EFFLUENT PFAS MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorooctanoic acid (PFOA)","parameter_code":"51521","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY INFLUENT PFAS MONTORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorooctanoic acid (PFOA)","parameter_code":"51521","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY PFAS SLUDGE MONITORING"},{"outfall":"PFAS","parameter":"Perfluoroheptanoic acid (PFHpA)","parameter_code":"51625","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY EFFLUENT PFAS MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluoroheptanoic acid (PFHpA)","parameter_code":"51625","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY INFLUENT PFAS MONTORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluoroheptanoic acid (PFHpA)","parameter_code":"51625","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY PFAS SLUDGE MONITORING"},{"outfall":"PFAS","parameter":"Perfluorononanoic acid (PFNA)","parameter_code":"51626","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY EFFLUENT PFAS MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorononanoic acid (PFNA)","parameter_code":"51626","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY INFLUENT PFAS MONTORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorononanoic acid (PFNA)","parameter_code":"51626","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY PFAS SLUDGE MONITORING"},{"outfall":"PFAS","parameter":"Perfluorodecanoic acid (PFDA)","parameter_code":"51627","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY EFFLUENT PFAS MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorodecanoic acid (PFDA)","parameter_code":"51627","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY INFLUENT PFAS MONTORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorodecanoic acid (PFDA)","parameter_code":"51627","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY PFAS SLUDGE MONITORING"},{"outfall":"PFAS","parameter":"Perfluorohexanesulfonic acid (PFHxS)","parameter_code":"52605","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY EFFLUENT PFAS MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorohexanesulfonic acid (PFHxS)","parameter_code":"52605","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY INFLUENT PFAS MONTORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorohexanesulfonic acid (PFHxS)","parameter_code":"52605","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY PFAS SLUDGE MONITORING"},{"outfall":"PFAS","parameter":"Perfluorooctanesulfonic acid (PFOS)","parameter_code":"52606","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY EFFLUENT PFAS MONITORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorooctanesulfonic acid (PFOS)","parameter_code":"52606","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/L","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY INFLUENT PFAS MONTORING OUTFALL 001"},{"outfall":"PFAS","parameter":"Perfluorooctanesulfonic acid (PFOS)","parameter_code":"52606","statistic":"daily maximum","qualifier":null,"value":null,"unit":"ng/g","report_only":true,"enforceable":true,"months":"all","limit_set":"QUARTERLY PFAS SLUDGE MONITORING"}],"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":"phosphorus","place":"US-MA","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=phosphorus&place=US-MA&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=phosphorus&place=US-MA&medium=surface_water","page":"https://passage-data.com/limits/US-MA/phosphorus"},{"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":"MA0100498"},"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=MA0100498"},{"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":"MA0100498"},"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=MA0100498"}]}