NPDES permit IL0029947 · Major POTW · effective, expires 2027-09-30 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31.
Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 30 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | WKLY AVG | <= 45 mg/L | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= .75 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 1.5 mg/L | all year |
| 001 | Flow, total | MO TOTAL | report only | all year |
| A01 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| A01 | BOD, 5-day, 20 deg. C | WKLY AVG | report only | all year |
| A01 | Solids, total suspended | MO AVG | report only | all year |
| A01 | Solids, total suspended | WKLY AVG | report only | all year |
| A01 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| A01 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| A01 | Coliform, fecal general | DAILY MX | <= 400 #/100mL | all year |
| A01 | Flow, total | MO TOTAL | report only | all year |
| B01 | pH | MINIMUM | >= 6 SU | all year |
| B01 | pH | MINIMUM | >= 6 SU | all year |
| B01 | pH | MAXIMUM | <= 9 SU | all year |
| B01 | pH | MAXIMUM | <= 9 SU | all year |
| B01 | Solids, total suspended | MO AVG | <= 25 mg/L | all year |
| B01 | Solids, total suspended | MO AVG | <= 25 mg/L | all year |
| B01 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| B01 | Solids, total suspended | WKLY AVG | <= 45 mg/L | all year |
| B01 | Solids, total suspended | MO AVG | <= 2867 lb/d | all year |
| B01 | Solids, total suspended | MO AVG | <= 2867 lb/d | all year |
| B01 | Solids, total suspended | WKLY AVG | <= 5160 lb/d | all year |
| B01 | Solids, total suspended | WKLY AVG | <= 5160 lb/d | all year |
| B01 | Oil & Grease | DAILY MX | report only | all year |
| B01 | Oil & Grease | DAILY MX | report only | all year |
| B01 | Nitrogen, total [as N] | MO AVG | report only | all year |
| B01 | Nitrogen, total [as N] | MO AVG | report only | all year |
| B01 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| B01 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| B01 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| B01 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| B01 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| B01 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| B01 | Cyanide, total [as CN] | DAILY MX | report only | all year |
| B01 | Cyanide, total [as CN] | DAILY MX | report only | all year |
| B01 | Cyanide, free [amenable to chlorination] | DAILY MX | report only | all year |
| B01 | Cyanide, free [amenable to chlorination] | DAILY MX | report only | all year |
| B01 | Fluoride, total [as F] | DAILY MX | report only | all year |
| B01 | Fluoride, total [as F] | DAILY MX | report only | all year |
| B01 | Arsenic, total [as As] | DAILY MX | report only | all year |
| B01 | Arsenic, total [as As] | DAILY MX | report only | all year |
| B01 | Barium, total [as Ba] | DAILY MX | report only | all year |
| B01 | Barium, total [as Ba] | DAILY MX | report only | all year |
| B01 | Beryllium, total [as Be] | DAILY MX | report only | all year |
| B01 | Beryllium, total [as Be] | DAILY MX | report only | all year |
| B01 | Cadmium, total [as Cd] | DAILY MX | report only | all year |
| B01 | Cadmium, total [as Cd] | DAILY MX | report only | all year |
| B01 | Chromium, hexavalent [as Cr] | DAILY MX | report only | all year |
| B01 | Chromium, hexavalent [as Cr] | DAILY MX | report only | all year |
| B01 | Chromium, total [as Cr] | DAILY MX | report only | all year |
| B01 | Chromium, total [as Cr] | DAILY MX | report only | all year |
| B01 | Copper, total [as Cu] | DAILY MX | report only | all year |
| B01 | Copper, total [as Cu] | DAILY MX | report only | all year |
| B01 | Iron, total [as Fe] | DAILY MX | report only | all year |
| B01 | Iron, total [as Fe] | DAILY MX | report only | all year |
| B01 | Iron, dissolved [as Fe] | DAILY MX | report only | all year |
| B01 | Iron, dissolved [as Fe] | DAILY MX | report only | all year |
| B01 | Lead, total [as Pb] | DAILY MX | report only | all year |
| B01 | Lead, total [as Pb] | DAILY MX | report only | all year |
| B01 | Manganese, total [as Mn] | DAILY MX | report only | all year |
| B01 | Manganese, total [as Mn] | DAILY MX | report only | all year |
| B01 | Thallium, total [as Tl] | DAILY MX | report only | all year |
| B01 | Thallium, total [as Tl] | DAILY MX | report only | all year |
| B01 | Nickel, total [as Ni] | DAILY MX | report only | all year |
| B01 | Nickel, total [as Ni] | DAILY MX | report only | all year |
| B01 | Silver, total [as Ag] | DAILY MX | report only | all year |
| B01 | Silver, total [as Ag] | DAILY MX | report only | all year |
| B01 | Zinc, total [as Zn] | DAILY MX | report only | all year |
| B01 | Zinc, total [as Zn] | DAILY MX | report only | all year |
| B01 | Antimony, total [as Sb] | DAILY MX | report only | all year |
| B01 | Antimony, total [as Sb] | DAILY MX | report only | all year |
| B01 | Selenium, total [as Se] | DAILY MX | report only | all year |
| B01 | Selenium, total [as Se] | DAILY MX | report only | all year |
| B01 | Coliform, fecal - % samples exceeding limit | MAXIMUM | <= 10 % | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Coliform, fecal - % samples exceeding limit | MAXIMUM | <= 10 % | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Phenolics, total recoverable | DAILY MX | report only | all year |
| B01 | Phenolics, total recoverable | DAILY MX | report only | all year |
| B01 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| B01 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| B01 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| B01 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| B01 | Chlorine, total residual | MO AVG | <= .75 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| B01 | Chlorine, total residual | MO AVG | <= .75 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| B01 | Chlorine, total residual | MO AVG | <= .75 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Chlorine, total residual | MO AVG | <= .75 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Chlorine, total residual | DAILY MX | <= 1.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| B01 | Chlorine, total residual | DAILY MX | <= 1.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| B01 | Chlorine, total residual | DAILY MX | <= 1.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Chlorine, total residual | DAILY MX | <= 1.5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| B01 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| B01 | Coliform, fecal general | GEO MEAN | <= 200 #/100mL | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Coliform, fecal general | GEO MEAN | <= 200 #/100mL | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Coliform, fecal general | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| B01 | Coliform, fecal general | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| B01 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 20 mg/L | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 20 mg/L | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 40 mg/L | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 40 mg/L | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 2294 lb/d | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 2294 lb/d | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 4587 lb/d | all year |
| B01 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 4587 lb/d | all year |
| INF | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| INF | Solids, total suspended | MO AVG | report only | all year |
| INF | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| INF | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| INFL | Oil & Grease | DAILY MX | report only | all year |
| INFL | Oil & Grease | DAILY MX | report only | all year |
| INFL | Cyanide, total [as CN] | DAILY MX | report only | all year |
| INFL | Cyanide, total [as CN] | DAILY MX | report only | all year |
| INFL | Cyanide, free [amenable to chlorination] | DAILY MX | report only | all year |
| INFL | Cyanide, free [amenable to chlorination] | DAILY MX | report only | all year |
| INFL | Fluoride, total [as F] | DAILY MX | report only | all year |
| INFL | Fluoride, total [as F] | DAILY MX | report only | all year |
| INFL | Arsenic, total [as As] | DAILY MX | report only | all year |
| INFL | Arsenic, total [as As] | DAILY MX | report only | all year |
| INFL | Barium, total [as Ba] | DAILY MX | report only | all year |
| INFL | Barium, total [as Ba] | DAILY MX | report only | all year |
| INFL | Beryllium, total [as Be] | DAILY MX | report only | all year |
| INFL | Beryllium, total [as Be] | DAILY MX | report only | all year |
| INFL | Cadmium, total [as Cd] | DAILY MX | report only | all year |
| INFL | Cadmium, total [as Cd] | DAILY MX | report only | all year |
| INFL | Chromium, hexavalent [as Cr] | DAILY MX | report only | all year |
| INFL | Chromium, hexavalent [as Cr] | DAILY MX | report only | all year |
| INFL | Chromium, total [as Cr] | DAILY MX | report only | all year |
| INFL | Chromium, total [as Cr] | DAILY MX | report only | all year |
| INFL | Copper, total [as Cu] | DAILY MX | report only | all year |
| INFL | Copper, total [as Cu] | DAILY MX | report only | all year |
| INFL | Iron, total [as Fe] | DAILY MX | report only | all year |
| INFL | Iron, total [as Fe] | DAILY MX | report only | all year |
| INFL | Iron, dissolved [as Fe] | DAILY MX | report only | all year |
| INFL | Iron, dissolved [as Fe] | DAILY MX | report only | all year |
| INFL | Lead, total [as Pb] | DAILY MX | report only | all year |
| INFL | Lead, total [as Pb] | DAILY MX | report only | all year |
| INFL | Manganese, total [as Mn] | DAILY MX | report only | all year |
| INFL | Manganese, total [as Mn] | DAILY MX | report only | all year |
| INFL | Thallium, total [as Tl] | DAILY MX | report only | all year |
| INFL | Thallium, total [as Tl] | DAILY MX | report only | all year |
| INFL | Nickel, total [as Ni] | DAILY MX | report only | all year |
| INFL | Nickel, total [as Ni] | DAILY MX | report only | all year |
| INFL | Silver, total [as Ag] | DAILY MX | report only | all year |
| INFL | Silver, total [as Ag] | DAILY MX | report only | all year |
| INFL | Zinc, total [as Zn] | DAILY MX | report only | all year |
| INFL | Zinc, total [as Zn] | DAILY MX | report only | all year |
| INFL | Antimony, total [as Sb] | DAILY MX | report only | all year |
| INFL | Antimony, total [as Sb] | DAILY MX | report only | all year |
| INFL | Selenium, total [as Se] | DAILY MX | report only | all year |
| INFL | Selenium, total [as Se] | DAILY MX | report only | all year |
| INFL | Phenolics, total recoverable | DAILY MX | report only | all year |
| INFL | Phenolics, total recoverable | DAILY MX | report only | all year |
| INFL | Mercury, total [as Hg] | DAILY MX | report only | all year |
| INFL | Mercury, total [as Hg] | DAILY MX | report only | all year |
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