{"permit":"MD0053228","name":"MT. CARMEL WOODS WWTP","state":"MD","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/MD0053228"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"La Plata, Maryland","href":"https://www.openstreetmap.org/?mlat=38.566389&mlon=-76.991389#map=14/38.566389/-76.991389"},{"label":"Last 12 months","text":"Over a limit 2 times, last in July 2026 (Chlorine, total residual; Solids, suspended percent removal). 1 of 12 reports filed late"},{"label":"Permit","text":"In force until Dec 31, 2030"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-09-30","over":2,"over_by":[["Chlorine, total residual",1],["Solids, suspended percent removal",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Chlorine, total residual","times":1,"find_limits":{"parameter":"chlorine","place":"US-MD","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=chlorine&place=US-MD&medium=surface_water"}],"upcoming":[{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":0.26,"unit":"lb/d","statistic":"maximum monthly average","statistic_code":"M2","begin":"2029-01-01","kind":"tighter","months":["JAN","FEB","MAR","APR","NOV","DEC"],"now":{"median":0.135,"n":6},"times_limit":0.519},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":1.5,"unit":"mg/L","statistic":"maximum monthly average","statistic_code":"M2","begin":"2029-01-01","kind":"tighter","months":["JAN","FEB","MAR","APR","NOV","DEC"],"now":{"median":1.521,"n":6},"times_limit":1.01},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":0.62,"unit":"mg/L","statistic":"maximum monthly average","statistic_code":"M2","begin":"2029-01-01","kind":"tighter","months":["MAY","JUN","JUL","AUG","SEP","OCT"],"now":{"median":0.7,"n":6},"times_limit":1.13},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":0.11,"unit":"lb/d","statistic":"maximum monthly average","statistic_code":"M2","begin":"2029-01-01","kind":"tighter","months":["MAY","JUN","JUL","AUG","SEP","OCT"],"now":{"median":0.038,"n":6},"times_limit":0.345},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":9.6,"unit":"mg/L","statistic":"maximum daily average","statistic_code":"MQ","begin":"2029-01-01","kind":"tighter","months":["JAN","FEB","MAR","APR","NOV","DEC"],"now":{"median":2.763,"n":6},"times_limit":0.288},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":1.7,"unit":"lb/d","statistic":"maximum daily average","statistic_code":"MQ","begin":"2029-01-01","kind":"tighter","months":["JAN","FEB","MAR","APR","NOV","DEC"],"now":{"median":0.242,"n":6},"times_limit":0.142},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":3,"unit":"mg/L","statistic":"maximum daily average","statistic_code":"MQ","begin":"2029-01-01","kind":"tighter","months":["MAY","JUN","JUL","AUG","SEP","OCT"],"now":{"median":1.314,"n":6},"times_limit":0.438},{"parameter":"Nitrogen, ammonia total [as N]","outfall":"001","limit":0.53,"unit":"lb/d","statistic":"maximum daily average","statistic_code":"MQ","begin":"2029-01-01","kind":"tighter","months":["MAY","JUN","JUL","AUG","SEP","OCT"],"now":{"median":0.084,"n":6},"times_limit":0.158}],"limits":[{"outfall":"001","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"instantaneous minimum","qualifier":">=","value":"7","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"23","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"2.6","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum monthly average","qualifier":"<=","value":"5.2","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"3.9","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum weekly average","qualifier":"<=","value":"7.9","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"7.8","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum monthly average","qualifier":"<=","value":"5.2","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum weekly average","qualifier":"<=","value":"7.9","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum monthly average","qualifier":"<=","value":"18","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum weekly average","qualifier":"<=","value":"27","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum monthly average","qualifier":"<=","value":"3.2","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"maximum weekly average","qualifier":"<=","value":"4.7","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"cumulative total","qualifier":"<=","value":"1150","unit":"lb/yr","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, total [as N]","parameter_code":"00600","statistic":"monthly total","qualifier":null,"value":null,"unit":"lb/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, organic total [as N]","parameter_code":"00605","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"1.7","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":"3.1","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum daily average","qualifier":"<=","value":"12.1","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum daily average","qualifier":"<=","value":"12.1","unit":"mg/L","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":".3","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum monthly average","qualifier":"<=","value":".5","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum daily average","qualifier":"<=","value":"2.1","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum daily average","qualifier":"<=","value":"2.1","unit":"lb/d","report_only":false,"enforceable":true,"months":["JAN","FEB","MAR","APR","NOV","DEC"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"maximum monthly average","qualifier":"<=","value":"5","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"maximum weekly average","qualifier":"<=","value":"7.5","unit":"mg/L","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"maximum monthly average","qualifier":"<=","value":".9","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Nitrogen, Kjeldahl, total [as N]","parameter_code":"00625","statistic":"maximum weekly average","qualifier":"<=","value":"1.3","unit":"lb/d","report_only":false,"enforceable":true,"months":["MAY","JUN","JUL","AUG","SEP","OCT"],"limit_set":"23-DP-1246"},{"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":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":"<=","value":"2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum weekly average","qualifier":"<=","value":"3","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum monthly average","qualifier":"<=","value":".35","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"cumulative total","qualifier":"<=","value":"128","unit":"lb/yr","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"maximum weekly average","qualifier":"<=","value":".52","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphorus, total [as P]","parameter_code":"00665","statistic":"monthly total","qualifier":null,"value":null,"unit":"lb/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Phosphate, ortho [as P]","parameter_code":"04175","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"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":"23-DP-1246"},{"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":"23-DP-1246"},{"outfall":"001","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"maximum","qualifier":"<=","value":".011","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"001","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"monthly median","qualifier":"<=","value":"14","unit":"MPN/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"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":"23-DP-1246"},{"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":"23-DP-1246"},{"outfall":"001","parameter":"Flow, total","parameter_code":"82220","statistic":"monthly total","qualifier":null,"value":null,"unit":"Mgal/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"101","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"23-DP-1246"},{"outfall":"101","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":"23-DP-1246"}],"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":"chlorine","place":"US-MD","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=chlorine&place=US-MD&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=chlorine&place=US-MD&medium=surface_water","page":"https://passage-data.com/limits/US-MD/chlorine"},{"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":"MD0053228"},"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=MD0053228"},{"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":"MD0053228"},"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=MD0053228"}]}