HARTFORD MDC WPCF

NPDES permit CT0100251 · Major POTW · administratively continued, expires 2020-09-30 · 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 2020-09-30 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

2values 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: Solids, total suspended (2).

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 (91)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only Mar, Jun, Sep, Dec
001BOD, 5-day, 20 deg. CDAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
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 suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only Mar, Jun, Sep, Dec
001Solids, total suspendedDAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Nitrogen, ammonia total [as N]DAILY MX report only Mar, Jun, Sep, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Nitrogen, nitrite total [as N]DAILY MX report only Mar, Jun, Sep, Dec
001Nitrogen, nitrite total [as N]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Nitrogen, nitrate total [as N]DAILY MX report only Mar, Jun, Sep, Dec
001Nitrogen, nitrate total [as N]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]DAILY MX report only Mar, Jun, Sep, Dec
001Phosphorus, total [as P]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Cyanide, total [as CN]DAILY MX report only Mar, Jun, Sep, Dec
001Cyanide, total [as CN]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Cyanide, free [amenable to chlorination]DAILY MX report only Mar, Jun, Sep, Dec
001Cyanide, free [amenable to chlorination]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Arsenic, total [as As]DAILY MX report only Mar, Jun, Sep, Dec
001Arsenic, total [as As]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Beryllium, total [as Be]INST MAX report only all year
001Beryllium, total [as Be]DAILY MX report only Mar, Jun, Sep, Dec
001Beryllium, total [as Be]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Cadmium, total [as Cd]DAILY MX report only Mar, Jun, Sep, Dec
001Cadmium, total [as Cd]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Chromium, hexavalent [as Cr]DAILY MX report only Mar, Jun, Sep, Dec
001Chromium, hexavalent [as Cr]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Chromium, total [as Cr]DAILY MX report only Mar, Jun, Sep, Dec
001Chromium, total [as Cr]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Copper, total [as Cu]DAILY MX report only Mar, Jun, Sep, Dec
001Copper, total [as Cu]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Iron, total [as Fe]DAILY MX report only Mar, Jun, Sep, Dec
001Iron, total [as Fe]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Lead, total [as Pb]DAILY MX report only Mar, Jun, Sep, Dec
001Lead, total [as Pb]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Thallium, total [as Tl]DAILY MX report only Mar, Jun, Sep, Dec
001Thallium, total [as Tl]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Nickel, total [as Ni]DAILY MX report only Mar, Jun, Sep, Dec
001Nickel, total [as Ni]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Silver, total [as Ag]DAILY MX report only Mar, Jun, Sep, Dec
001Silver, total [as Ag]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Zinc, total [as Zn]DAILY MX report only Mar, Jun, Sep, Dec
001Zinc, total [as Zn]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Antimony, total [as Sb]DAILY MX report only Mar, Jun, Sep, Dec
001Antimony, total [as Sb]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Aluminum, total [as Al]DAILY MX report only Mar, Jun, Sep, Dec
001Aluminum, total [as Al]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Selenium, total [as Se]DAILY MX report only Mar, Jun, Sep, Dec
001Selenium, total [as Se]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Polychlorinated biphenyls [PCBs]INST MAX report only all year
001PhenolsDAILY MX report only Mar, Jun, Sep, Dec
001PhenolsDAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Chlorine, total residualINST MAX report only May, Jun, Jul, Aug, Sep
001Chlorine, total residualDAILY MX report only Mar, Jun, Sep, Dec
001Chlorine, total residualDAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001Enterococci30DA GEO <= 35 #/100mL May, Jun, Jul, Aug, Sep
001EnterococciMAXIMUM <= 500 #/100mL May, Jun, Jul, Aug, Sep
001EnterococciTOTAL report only May, Jun, Jul, Aug, Sep
001Arsenic, sludge tot. dry wt [as As]INST MAX report only all year
001Ultraviolet light dosageINST MIN >= 30 mJ/cm2 May, Jun, Jul, Aug, Sep
001Solids, total, percentMINIMUM report only all year
001Solids, fixed, % of total solidsMINIMUM report only all year
001Solids, volatile % of total solidsMINIMUM report only all year
001Mercury, total [as Hg]DAILY MX report only Mar, Jun, Sep, Dec
001Mercury, total [as Hg]DAILY MX report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001FlowTOTAL report only all year
001Zinc, sludge, total, dry weight [as Zn]INST MAX report only all year
001Lead, sludge, total, dry weight [as Pb]INST MAX report only all year
001Nickel, sludge, total, dry weight [as Ni]INST MAX report only all year
001Mercury, sludge, total, dry weight [as Hg]INST MAX report only all year
001Chromium, sludge, total, dry weight [as Cr]INST MAX report only all year
001Copper, sludge, total, dry weight [as Cu]INST MAX report only all year
001Cadmium, sludge, total, dry weight [as Cd]INST MAX report only all year
001BOD, carbonaceous [5 day, 5 C]MO AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 5 C]DAILY MX <= 50 mg/L all year
001BOD, carbonaceous [5 day, 5 C]DAILY MX report only all year
001BOD, carbonaceous [5 day, 5 C]MO AVG report only all year
001Solids, suspended percent removalMN % RMV >= 85 % all year
001Duration of dischargeDAILY MX report only all year
001Carbonaceous oxygen demand, % removalMN % RMV >= 85 % all year
001NOAEL Static 48Hr Acute D. pulexMINIMUM report only Mar, Jun, Sep, Dec
001NOAEL Static 48Hr Acute D. pulexMINIMUM report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov
001NOAEL Static 48Hr Acute Pimephales promelasMINIMUM report only Mar, Jun, Sep, Dec
001NOAEL Static 48Hr Acute Pimephales promelasMINIMUM report only Jan, Feb, Apr, May, Jul, Aug, Oct, Nov

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