HARVARD, CITY OF

NPDES permit IL0020117 · Major POTW · effective, expires 2026-12-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
4of 35 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (174)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
001Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
001Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 450 lb/d all year
001Solids, total suspendedMO AVG <= 450 lb/d all year
001Solids, total suspendedDAILY MX <= 901 lb/d all year
001Solids, total suspendedDAILY MX <= 901 lb/d all year
001Oil & GreaseDAILY MX report only all year
001Oil & GreaseDAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 1.1 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 1.1 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 4.7 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 56 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 56 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 41 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 41 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 68 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 68 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 176 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 176 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 176 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 176 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 195 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 195 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 2.8 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 2.8 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.8 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.8 mg/L Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 105 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 105 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 143 lb/d Mar, Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 143 lb/d Mar, Apr, May, Sep, Oct
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG <= 38 lb/d all year
001Phosphorus, total [as P]MO AVG <= 38 lb/d all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Cyanide, free [amenable to chlorination]DAILY MX report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Arsenic, total [as As]DAILY MX report only all year
001Barium, total [as Ba]DAILY MX report only all year
001Barium, total [as Ba]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Chromium, hexavalent [as Cr]MO AVG <= .011 mg/L all year
001Chromium, hexavalent [as Cr]MO AVG <= .011 mg/L all year
001Chromium, hexavalent [as Cr]MO AVG <= .011 mg/L all year
001Chromium, hexavalent [as Cr]MO AVG <= .011 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX <= .016 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX <= .016 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX <= .016 mg/L all year
001Chromium, hexavalent [as Cr]DAILY MX <= .016 mg/L all year
001Chromium, hexavalent [as Cr]MO AVG <= .41 lb/d all year
001Chromium, hexavalent [as Cr]MO AVG <= .41 lb/d all year
001Chromium, hexavalent [as Cr]MO AVG <= .41 lb/d all year
001Chromium, hexavalent [as Cr]MO AVG <= .41 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= .6 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= .6 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= .6 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= .6 lb/d all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Copper, total [as Cu]MO AVG <= .0349 mg/L all year
001Copper, total [as Cu]MO AVG <= .0349 mg/L all year
001Copper, total [as Cu]MO AVG <= .0412 mg/L all year
001Copper, total [as Cu]MO AVG <= .0412 mg/L all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX <= .0585 mg/L all year
001Copper, total [as Cu]DAILY MX <= .0585 mg/L all year
001Copper, total [as Cu]MO AVG <= 1.3 lb/d all year
001Copper, total [as Cu]MO AVG <= 1.3 lb/d all year
001Copper, total [as Cu]MO AVG <= 1.6 lb/d all year
001Copper, total [as Cu]MO AVG <= 1.6 lb/d all year
001Copper, total [as Cu]DAILY MX <= 2.2 lb/d all year
001Copper, total [as Cu]DAILY MX <= 2.2 lb/d all year
001Iron, total [as Fe]DAILY MX report only all year
001Iron, total [as Fe]DAILY MX report only all year
001Iron, dissolved [as Fe]DAILY MX report only all year
001Iron, dissolved [as Fe]DAILY MX report only all year
001Iron, dissolved [as Fe]DAILY MX <= 1 mg/L all year
001Iron, dissolved [as Fe]DAILY MX <= 1 mg/L all year
001Iron, dissolved [as Fe]DAILY MX <= 38 lb/d all year
001Iron, dissolved [as Fe]DAILY MX <= 38 lb/d all year
001Lead, total [as Pb]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Nickel, total [as Ni]MO AVG <= .0146 mg/L all year
001Nickel, total [as Ni]MO AVG <= .0146 mg/L all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Nickel, total [as Ni]MO AVG <= .55 lb/d all year
001Nickel, total [as Ni]MO AVG <= .55 lb/d all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX <= .005 mg/L all year
001Silver, total [as Ag]DAILY MX <= .005 mg/L all year
001Silver, total [as Ag]DAILY MX <= .19 lb/d all year
001Silver, total [as Ag]DAILY MX <= .19 lb/d all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Selenium, total [as Se]DAILY MX report only all year
001Phenolics, total recoverableDAILY MX report only all year
001Phenolics, total recoverableDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .038 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Chlorine, total residualDAILY MX <= .038 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Chlorine, total residualDAILY MX <= .038 mg/L May, Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MX <= .038 mg/L May, Jun, Jul, Aug, Sep, Oct
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
001Coliform, fecal generalDAILY MX <= 400 #/100mL May, Jun, Jul, Aug, Sep, Oct
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 375 lb/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 375 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 751 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 751 lb/d all year
002Oxygen, dissolved [DO]DAILY MN report only all year
002BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedWKLY AVG <= 45 mg/L all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Chlorine, total residualMO AVG <= .75 mg/L all year
002Coliform, fecal generalDAILY MX <= 400 #/100mL all year
002Flow, totalMO TOTAL report only all year
INFBOD, 5-day, 20 deg. CMO AVG report only all year
INFSolids, total suspendedMO AVG report only all year
INFFlow, in conduit or thru treatment plantMO AVG report only all year
INFFlow, in conduit or thru treatment plantDAILY MX report only all year

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