{"permit":"MA0101192","name":"BOSTON WATER & SEWER COMM -CSO","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/MA0101192"},"about":[{"label":"What it is","text":"Sewerage Systems (EPA's industry listing) · rated a major discharger by EPA"},{"label":"Where","text":"Boston, Massachusetts","href":"https://www.openstreetmap.org/?mlat=42.345&mlon=-71.059444#map=14/42.345/-71.059444"},{"label":"Last 12 months","text":"Over a limit 2 times, last in September 2026 (pH)"},{"label":"Permit","text":"Expired May 27, 2008; 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":"2007-11-29","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/MA0101192#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":"MA","sic":"4952","permits":39,"list":"https://passage-data.com/api/v1/permits?state=MA&sic=4952"},"limits_from_version":null,"record":{"last_filed":"2026-09-30","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-MA","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-MA&medium=surface_water"}],"limits":[{"outfall":"215","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"8.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"E. coli, thermotol, MF, MTEC","parameter_code":"31633","statistic":"average","qualifier":null,"value":null,"unit":"CFU/100mL","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"E. coli, thermotol, MF, MTEC","parameter_code":"31633","statistic":"maximum","qualifier":null,"value":null,"unit":"CFU/100mL","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Rainfall","parameter_code":"46529","statistic":"average value","qualifier":null,"value":null,"unit":"in","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Rainfall","parameter_code":"46529","statistic":"maximum value","qualifier":null,"value":null,"unit":"in","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"average","qualifier":"<=","value":".1","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"maximum hourly average","qualifier":"<=","value":".25","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Rainfall events","parameter_code":"51407","statistic":"event total","qualifier":null,"value":null,"unit":"occur/mo","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Flow, total","parameter_code":"51500","statistic":"average","qualifier":null,"value":null,"unit":"Mgal","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Flow, total","parameter_code":"51500","statistic":"maximum","qualifier":null,"value":null,"unit":"Mgal","report_only":true,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"average","qualifier":"<=","value":"200","unit":"CFU/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"maximum","qualifier":"<=","value":"400","unit":"CFU/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"MWR215"},{"outfall":"215","parameter":"LC50 Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TAM3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Toxicity"},{"outfall":"215","parameter":"LC50 Static Renewal 48Hr Acute Menidia","parameter_code":"TAM6B","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"Toxicity"}],"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":"MA","sic":"4952"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=MA&sic=4952","url":"https://passage-data.com/api/v1/permits?state=MA&sic=4952"},{"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-MA","medium":"surface_water"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-MA&medium=surface_water","url":"https://passage-data.com/api/v1/limits?parameter=ph&place=US-MA&medium=surface_water","page":"https://passage-data.com/limits/US-MA/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":"MA0101192"},"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=MA0101192"},{"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":"MA0101192"},"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=MA0101192"}]}