WORCESTER CSO, CITY DPW

NPDES permit MA0102997 · Minor NON-POTW · administratively continued, expires 2010-07-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2010-07-31 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

7values over a limit
10required values missing, on 2 form(s)
10of 14 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chlorine, total residual (6), pH (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (25)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.3 SU all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Nitrite + Nitrate total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep
001Nitrite + Nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Apr, May, Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001Phosphate, ortho [as P]MO AVG report only Apr, May, Jun, Jul, Aug, Sep
001Phosphate, ortho [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
001RainfallDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX <= 350 MGD all year
001Chlorine, total residualMO AVG report only all year
001Chlorine, total residualDAILY MX <= 72 ug/L all year
001Coliform, fecal generalMO AVG <= 200 #/100mL all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY 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