WINCHESTER WPCF/WINSTED WPCF

NPDES permit CT0101222 · Major POTW · administratively continued, expires 2021-10-31 · 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 2021-10-31 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

0values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31.

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 (118)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only Feb, May, Aug, Nov
001BOD, 5-day, 20 deg. CDAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only Feb, May, Aug, Nov
001Solids, total suspendedDAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 7.7 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 11.7 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 9 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 5.1 mg/L Nov
001Nitrogen, ammonia total [as N]MO AVG <= 3.2 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 3.8 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 17.2 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 7.2 mg/L Jan, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 21 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 29 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 23 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 13 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 9 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 3.5 mg/L Jul, Aug, Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 10 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 43 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 18 mg/L Jan, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Feb, May, Aug, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Nitrogen, nitrite total [as N]DAILY MX report only Feb, May, Aug, Nov
001Nitrogen, nitrite total [as N]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Nitrogen, nitrate total [as N]DAILY MX report only Feb, May, Aug, Nov
001Nitrogen, nitrate total [as N]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Phosphorus, total [as P]MO AVG <= 2.31 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]MO AVG report only Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]DAILY MX <= 4.63 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, total [as P]DAILY MX report only Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]DAILY MX report only Feb, May, Aug, Nov
001Phosphorus, total [as P]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Cyanide, total [as CN]DAILY MX report only Feb, May, Aug, Nov
001Cyanide, total [as CN]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Cyanide, free [amenable to chlorination]DAILY MX report only Feb, May, Aug, Nov
001Cyanide, free [amenable to chlorination]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Arsenic, total [as As]DAILY MX report only Feb, May, Aug, Nov
001Arsenic, total [as As]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Beryllium, total [as Be]DAILY MX report only Feb, May, Aug, Nov
001Beryllium, total [as Be]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Cadmium, total [as Cd]DAILY MX report only Feb, May, Aug, Nov
001Cadmium, total [as Cd]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Chromium, hexavalent [as Cr]DAILY MX report only Feb, May, Aug, Nov
001Chromium, hexavalent [as Cr]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Chromium, total [as Cr]DAILY MX report only Feb, May, Aug, Nov
001Chromium, total [as Cr]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]MO AVG <= .369 kg/d all year
001Copper, total [as Cu]DAILY MX <= 1.021 kg/d all year
001Copper, total [as Cu]DAILY MX report only Feb, May, Aug, Nov
001Copper, total [as Cu]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Iron, total [as Fe]DAILY MX report only Feb, May, Aug, Nov
001Iron, total [as Fe]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Lead, total [as Pb]DAILY MX report only Feb, May, Aug, Nov
001Lead, total [as Pb]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Thallium, total [as Tl]DAILY MX report only Feb, May, Aug, Nov
001Thallium, total [as Tl]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Nickel, total [as Ni]DAILY MX report only Feb, May, Aug, Nov
001Nickel, total [as Ni]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Silver, total [as Ag]DAILY MX report only Feb, May, Aug, Nov
001Zinc, total [as Zn]MO AVG report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]MO AVG <= .834 kg/d all year
001Zinc, total [as Zn]DAILY MX <= 1.396 kg/d all year
001Zinc, total [as Zn]DAILY MX report only Feb, May, Aug, Nov
001Zinc, total [as Zn]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Antimony, total [as Sb]DAILY MX report only Feb, May, Aug, Nov
001Antimony, total [as Sb]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Aluminum, total [as Al]DAILY MX report only Feb, May, Aug, Nov
001Aluminum, total [as Al]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Selenium, total [as Se]DAILY MX report only Feb, May, Aug, Nov
001Selenium, total [as Se]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Polychlorinated biphenyls [PCBs]INST MAX report only Feb, May, Aug, Nov
001PhenolsDAILY MX report only Feb, May, Aug, Nov
001PhenolsDAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Chlorine, total residualMO AVG <= .05 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualINST MAX <= .1 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MX report only Feb, May, Aug, Nov
001Chlorine, total residualDAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001E. coli30DA GEO <= 126 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coliMAXIMUM <= 410 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Phosphorus, Total [Avg Seasonal Load Cap]MO AVG report only all year
001Arsenic, sludge tot. dry wt [as As]INST MAX report only Feb, May, Aug, Nov
001Beryllium, sludge, tot. dry wt [as Be]INST MAX report only Feb, May, Aug, Nov
001Solids, total, percentINST MIN report only Feb, May, Aug, Nov
001Solids, fixed, % of total solidsINST MIN report only Feb, May, Aug, Nov
001Solids, volatile % of total solidsINST MIN report only Feb, May, Aug, Nov
001Mercury, total [as Hg]DAILY MX report only Feb, May, Aug, Nov
001Mercury, total [as Hg]DAILY MX report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001Coliform, fecal general30DA GEO <= 200 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Coliform, fecal general7 DA GEO <= 400 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001Zinc, sludge, total, dry weight [as Zn]INST MAX report only Feb, May, Aug, Nov
001Lead, sludge, total, dry weight [as Pb]INST MAX report only Feb, May, Aug, Nov
001Nickel, sludge, total, dry weight [as Ni]INST MAX report only Feb, May, Aug, Nov
001Mercury, sludge, total, dry weight [as Hg]INST MAX report only Feb, May, Aug, Nov
001Chromium, sludge, total, dry weight [as Cr]INST MAX report only Feb, May, Aug, Nov
001Copper, sludge, total, dry weight [as Cu]INST MAX report only Feb, May, Aug, Nov
001Cadmium, sludge, total, dry weight [as Cd]INST MAX report only Feb, May, Aug, Nov
001BOD, 5-day, percent removalMN % RMV >= 85 % all year
001Solids, suspended percent removalMN % RMV >= 85 % all year
001NOAEL Static 48Hr Acute D. pulexMINIMUM report only Feb, May, Aug, Nov
001NOAEL Static 48Hr Acute D. pulexMINIMUM report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec
001NOAEL Static 48Hr Acute Pimephales promelasMINIMUM report only Feb, May, Aug, Nov
001NOAEL Static 48Hr Acute Pimephales promelasMINIMUM report only Jan, Mar, Apr, Jun, Jul, Sep, Oct, Dec

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