SOMERSVILLE WPCF

NPDES permit CT0101605 · Minor POTW · expired, expires 2025-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-09-30 and is expired: 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

42values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31. Most often over: Solids, total suspended (13), Solids, suspended percent removal (8), BOD, 5-day, 20 deg. C (8).

Reporting

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

Limits in force (87)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 20 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only Jun, Dec
001BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only Jun, Dec
001Solids, total suspendedDAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only Jun, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Nitrogen, nitrite total [as N]DAILY MX report only Jun, Dec
001Nitrogen, nitrite total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Nitrogen, nitrate total [as N]DAILY MX report only Jun, Dec
001Nitrogen, nitrate total [as N]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only Jun, Dec
001Phosphorus, total [as P]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Cyanide, total [as CN]DAILY MX report only Jun, Dec
001Cyanide, total [as CN]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Cyanide, free [amenable to chlorination]DAILY MX report only Jun, Dec
001Cyanide, free [amenable to chlorination]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Arsenic, total [as As]DAILY MX report only Jun, Dec
001Arsenic, total [as As]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Beryllium, total [as Be]DAILY MX report only Jun, Dec
001Beryllium, total [as Be]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Cadmium, total [as Cd]DAILY MX report only Jun, Dec
001Cadmium, total [as Cd]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Chromium, hexavalent [as Cr]DAILY MX report only Jun, Dec
001Chromium, hexavalent [as Cr]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Chromium, total [as Cr]DAILY MX report only Jun, Dec
001Chromium, total [as Cr]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Copper, total [as Cu]DAILY MX report only Jun, Dec
001Copper, total [as Cu]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Iron, total [as Fe]DAILY MX report only Jun, Dec
001Iron, total [as Fe]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Lead, total [as Pb]DAILY MX report only Jun, Dec
001Lead, total [as Pb]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Thallium, total [as Tl]DAILY MX report only Jun, Dec
001Thallium, total [as Tl]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Nickel, total [as Ni]DAILY MX report only Jun, Dec
001Nickel, total [as Ni]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Silver, total [as Ag]DAILY MX report only Jun, Dec
001Silver, total [as Ag]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Zinc, total [as Zn]DAILY MX report only Jun, Dec
001Zinc, total [as Zn]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Antimony, total [as Sb]DAILY MX report only Jun, Dec
001Antimony, total [as Sb]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Aluminum, total [as Al]DAILY MX report only Jun, Dec
001Aluminum, total [as Al]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Selenium, total [as Se]DAILY MX report only Jun, Dec
001Selenium, total [as Se]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Polychlorinated biphenyls [PCBs]INST MAX report only Jun
001PhenolsDAILY MX report only Jun, Dec
001PhenolsDAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Chlorine, total residualMO AVG <= .05 mg/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX <= .1 mg/L May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX report only Jun, Dec
001Chlorine, total residualDAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001E. coli30DA GEO <= 126 #/100mL May, Jun, Jul, Aug, Sep
001E. coliMAXIMUM <= 410 #/100mL May, Jun, Jul, Aug, Sep
001Arsenic, sludge tot. dry wt [as As]INST MAX report only Jun
001Beryllium, sludge, tot. dry wt [as Be]INST MAX report only Jun
001Ultraviolet light dosageMINIMUM report only May, Jun, Jul, Aug, Sep
001Solids, total, percentINST MIN report only Jun
001Solids, fixed, % of total solidsINST MIN report only Jun
001Solids, volatile % of total solidsINST MIN report only Jun
001Mercury, total [as Hg]DAILY MX report only Jun, Dec
001Mercury, total [as Hg]DAILY MX report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001Zinc, sludge, total, dry weight [as Zn]INST MAX report only Jun
001Lead, sludge, total, dry weight [as Pb]INST MAX report only Jun
001Nickel, sludge, total, dry weight [as Ni]INST MAX report only Jun
001Mercury, sludge, total, dry weight [as Hg]INST MAX report only Jun
001Chromium, sludge, total, dry weight [as Cr]INST MAX report only Jun
001Copper, sludge, total, dry weight [as Cu]INST MAX report only Jun
001Cadmium, sludge, total, dry weight [as Cd]INST MAX report only Jun
001BOD, 5-day, percent removalMN % RMV >= 90 % all year
001Solids, suspended percent removalMN % RMV >= 90 % all year
001NOAEL Static 48Hr Acute D. pulexDAILY MN >= 90 % survival Jun, Dec
001NOAEL Static 48Hr Acute D. pulexDAILY MN report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov
001NOAEL Static 48Hr Acute Pimephales promelasDAILY MN >= 90 % survival Jun, Dec
001NOAEL Static 48Hr Acute Pimephales promelasDAILY MN report only Jan, Feb, Mar, Apr, May, Jul, Aug, Sep, Oct, Nov

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