HARRISBURG, CITY OF

NPDES permit IL0029149 · Major POTW · administratively continued, expires 2025-08-31 · 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 2025-08-31 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)
0of 74 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among IL permits in EPA's filings — check your permit).

Limits in force (187)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MO AV MN >= 5.5 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 >= 4 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 >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 12 mg/L all year
001Solids, total suspendedDAILY MX <= 24 mg/L all year
001Solids, total suspendedMO AVG <= 313 lb/d all year
001Solids, total suspendedDAILY MX <= 626 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, ammonia total [as N]MO AVG <= 1.2 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 1.9 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.9 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 8.4 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 9.7 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 6.9 mg/L Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Mar
001Nitrogen, ammonia total [as N]MO AVG <= 31 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]MO AVG <= 50 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 104 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 50 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 219 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 253 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 180 lb/d Jan, Feb, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 263 lb/d Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.6 mg/L Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 3 mg/L Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.6 mg/L Mar
001Nitrogen, ammonia total [as N]WKLY AVG <= 120 lb/d Apr, May, Sep, Oct
001Nitrogen, ammonia total [as N]WKLY AVG <= 78 lb/d Jun, Jul, Aug
001Nitrogen, ammonia total [as N]WKLY AVG <= 120 lb/d Mar
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]MO AVG <= 26 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]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only 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]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only 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
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]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only all year
001Silver, total [as Ag]DAILY MX report only 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 plantDAILY MX report only all year
001Chlorine, total residualDAILY MX <= .038 mg/L all year
001Mercury, total [as Hg]DAILY MX report only all year
001Mercury, total [as Hg]DAILY MX report only all year
001Coliform, fecal generalDAILY MX report only 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]DAILY MX <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 261 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 521 lb/d 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
003Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
003Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
003Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
003Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
003Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedMO AVG <= 25 mg/L all year
003Solids, total suspendedWKLY AVG <= 45 mg/L all year
003Solids, total suspendedMO AVG <= 485 lb/d all year
003Solids, total suspendedWKLY AVG <= 873 lb/d all year
003Nitrogen, total [as N]DAILY MX report only all year
003Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Mar, Apr, May, Sep, Oct
003Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Jun, Jul, Aug
003Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
003Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Mar, Apr, May, Sep, Oct
003Nitrogen, ammonia total [as N]DAILY MX <= 8.4 mg/L Jun, Jul, Aug
003Nitrogen, ammonia total [as N]DAILY MX <= 6.9 mg/L Jan, Feb, Nov, Dec
003Nitrogen, ammonia total [as N]MO AVG <= 39 lb/d Mar, Apr, May, Sep, Oct
003Nitrogen, ammonia total [as N]MO AVG <= 25 lb/d Jun, Jul, Aug
003Nitrogen, ammonia total [as N]MO AVG <= 78 lb/d Jan, Feb, Nov, Dec
003Nitrogen, ammonia total [as N]DAILY MX <= 196 lb/d Mar, Apr, May, Sep, Oct
003Nitrogen, ammonia total [as N]DAILY MX <= 163 lb/d Jun, Jul, Aug
003Nitrogen, ammonia total [as N]DAILY MX <= 134 lb/d Jan, Feb, Nov, Dec
003Nitrogen, ammonia total [as N]WKLY AVG <= 4.9 mg/L Mar, Apr, May, Sep, Oct
003Nitrogen, ammonia total [as N]WKLY AVG <= 3.3 mg/L Jun, Jul, Aug
003Nitrogen, ammonia total [as N]WKLY AVG <= 95 lb/d Mar, Apr, May, Sep, Oct
003Nitrogen, ammonia total [as N]WKLY AVG <= 64 lb/d Jun, Jul, Aug
003Phosphorus, total [as P]MO AVG <= 1 mg/L all year
003Phosphorus, total [as P]MO AVG <= 19 lb/d all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chlorine, total residualDAILY MX <= .038 mg/L all year
003Coliform, fecal generalDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
003BOD, carbonaceous [5 day, 20 C]MO AVG <= 20 mg/L all year
003BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
003BOD, carbonaceous [5 day, 20 C]MO AVG <= 388 lb/d all year
003BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 776 lb/d all year
004Oxygen, dissolved [DO]MO AV MN >= 5.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
004Oxygen, dissolved [DO]MN WK AV >= 6 mg/L Mar, Apr, May, Jun, Jul
004Oxygen, dissolved [DO]MN WK AV >= 4 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
004Oxygen, dissolved [DO]DAILY MN >= 5 mg/L Mar, Apr, May, Jun, Jul
004Oxygen, dissolved [DO]DAILY MN >= 3.5 mg/L Jan, Feb, Aug, Sep, Oct, Nov, Dec
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedMO AVG <= 25 mg/L all year
004Solids, total suspendedWKLY AVG <= 45 mg/L all year
004Solids, total suspendedMO AVG <= 485 lb/d all year
004Solids, total suspendedWKLY AVG <= 873 lb/d all year
004Nitrogen, total [as N]DAILY MX report only all year
004Nitrogen, ammonia total [as N]MO AVG <= 2 mg/L Mar, Apr, May, Sep, Oct
004Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Jun, Jul, Aug
004Nitrogen, ammonia total [as N]MO AVG <= 4 mg/L Jan, Feb, Nov, Dec
004Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Mar, Apr, May, Sep, Oct
004Nitrogen, ammonia total [as N]DAILY MX <= 8.4 mg/L Jun, Jul, Aug
004Nitrogen, ammonia total [as N]DAILY MX <= 6.9 mg/L Jan, Feb, Nov, Dec
004Nitrogen, ammonia total [as N]MO AVG <= 39 lb/d Mar, Apr, May, Sep, Oct
004Nitrogen, ammonia total [as N]MO AVG <= 25 lb/d Jun, Jul, Aug
004Nitrogen, ammonia total [as N]MO AVG <= 78 lb/d Jan, Feb, Nov, Dec
004Nitrogen, ammonia total [as N]DAILY MX <= 196 lb/d Mar, Apr, May, Sep, Oct
004Nitrogen, ammonia total [as N]DAILY MX <= 163 lb/d Jun, Jul, Aug
004Nitrogen, ammonia total [as N]DAILY MX <= 134 lb/d Jan, Feb, Nov, Dec
004Nitrogen, ammonia total [as N]WKLY AVG <= 4.9 mg/L Mar, Apr, May, Sep, Oct
004Nitrogen, ammonia total [as N]WKLY AVG <= 3.3 mg/L Jun, Jul, Aug
004Nitrogen, ammonia total [as N]WKLY AVG <= 95 lb/d Mar, Apr, May, Sep, Oct
004Nitrogen, ammonia total [as N]WKLY AVG <= 64 lb/d Jun, Jul, Aug
004Phosphorus, total [as P]MO AVG <= 1 mg/L all year
004Phosphorus, total [as P]MO AVG <= 19 lb/d all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Chlorine, total residualDAILY MX <= .038 mg/L all year
004Coliform, fecal generalDAILY MX report only May, Jun, Jul, Aug, Sep, Oct
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 20 mg/L all year
004BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 40 mg/L all year
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 388 lb/d all year
004BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 776 lb/d all year
COMSolids, total suspendedMO AVG <= 652 lb/d all year
COMSolids, total suspendedDAILY MX <= 1173 lb/d all year
COMNitrogen, ammonia total [as N]MO AVG <= 50 lb/d Mar
COMNitrogen, ammonia total [as N]MO AVG <= 50 lb/d Apr, May, Sep, Oct
COMNitrogen, ammonia total [as N]MO AVG <= 31 lb/d Jun, Jul, Aug
COMNitrogen, ammonia total [as N]MO AVG <= 104 lb/d Jan, Feb, Nov, Dec
COMNitrogen, ammonia total [as N]DAILY MX <= 263 lb/d Mar
COMNitrogen, ammonia total [as N]DAILY MX <= 253 lb/d Apr, May, Sep, Oct
COMNitrogen, ammonia total [as N]DAILY MX <= 219 lb/d Jun, Jul, Aug
COMNitrogen, ammonia total [as N]DAILY MX <= 180 lb/d Jan, Feb, Nov, Dec
COMBOD, carbonaceous [5 day, 20 C]MO AVG <= 521 lb/d all year
COMBOD, carbonaceous [5 day, 20 C]DAILY MX <= 1043 lb/d 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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