BOSTON WATER & SEWER COMM -CSO

NPDES permit MA0101192 · Major NON-POTW · administratively continued, expires 2008-05-27 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2008-05-27 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among MA permits in EPA's filings — check your permit).

Limits in force (19)

OutfallParameterStatisticLimitMonths
215BOD, 5-day, 20 deg. CAVERAGE report only all year
215BOD, 5-day, 20 deg. CMAXIMUM report only all year
215pHMINIMUM >= 6.5 SU all year
215pHMAXIMUM <= 8.5 SU all year
215Solids, total suspendedAVERAGE report only all year
215Solids, total suspendedMAXIMUM report only all year
215E. coli, thermotol, MF, MTECAVERAGE report only all year
215E. coli, thermotol, MF, MTECMAXIMUM report only all year
215RainfallAH report only all year
215RainfallM0 report only all year
215Chlorine, total residualAVERAGE <= .1 mg/L all year
215Chlorine, total residualHX <= .25 mg/L all year
215Rainfall eventsET report only all year
215Flow, totalAVERAGE report only all year
215Flow, totalMAXIMUM report only all year
215Coliform, fecal generalAVERAGE <= 200 CFU/100mL all year
215Coliform, fecal generalMAXIMUM <= 400 CFU/100mL all year
215LC50 Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
215LC50 Static Renewal 48Hr Acute MenidiaMO AV MN report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states