NPDES permit IL0003204 · Minor NON-POTW · effective, expires 2028-08-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Solids, total suspended (3), BOD, 5-day, 20 deg. C (1), pH (1).
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).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 10 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 20 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | 30DA AVG | <= 5 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 10 lb/d | all year |
| 001 | pH | MO MIN | >= 6.5 SU | all year |
| 001 | pH | MO MAX | <= 9 SU | all year |
| 001 | Solids, total suspended | 30DA AVG | <= 12 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 24 mg/L | all year |
| 001 | Solids, total suspended | 30DA AVG | <= 6 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 12 lb/d | all year |
| 001 | Hardness, total [as CaCO3] | QRTR AVG | report only | all year |
| 001 | Hardness, total [as CaCO3] | QRTR AVG | report only | all year |
| 001 | Hardness, total [as CaCO3] | QB | report only | all year |
| 001 | Hardness, total [as CaCO3] | QB | report only | all year |
| 001 | Zinc, total [as Zn] | QRTR AVG | report only | all year |
| 001 | Zinc, total [as Zn] | QRTR AVG | report only | all year |
| 001 | Zinc, total [as Zn] | QB | report only | all year |
| 001 | Zinc, total [as Zn] | QB | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 002 | Temperature, water deg. fahrenheit | MO MAX | <= 63 deg F | Jan, Feb, Mar, Dec |
| 002 | Temperature, water deg. fahrenheit | MO MAX | <= 93 deg F | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 002 | pH | MO MIN | >= 6.5 SU | all year |
| 002 | pH | MO MAX | <= 9 SU | all year |
| 002 | Solids, total suspended | 30DA AVG | <= 12 mg/L | all year |
| 002 | Solids, total suspended | DAILY MX | <= 24 mg/L | all year |
| 002 | Solids, total suspended | 30DA AVG | <= 20 lb/d | all year |
| 002 | Solids, total suspended | DAILY MX | <= 40 lb/d | all year |
| 002 | Hardness, total [as CaCO3] | QRTR AVG | report only | all year |
| 002 | Hardness, total [as CaCO3] | QRTR AVG | report only | all year |
| 002 | Hardness, total [as CaCO3] | QB | report only | all year |
| 002 | Hardness, total [as CaCO3] | QB | report only | all year |
| 002 | Chloride [as Cl] | 30DA AVG | report only | all year |
| 002 | Chloride [as Cl] | DAILY MX | report only | all year |
| 002 | Iron, total [as Fe] | 30DA AVG | <= 2 mg/L | all year |
| 002 | Iron, total [as Fe] | DAILY MX | <= 4 mg/L | all year |
| 002 | Iron, total [as Fe] | 30DA AVG | <= 2.7 lb/d | all year |
| 002 | Iron, total [as Fe] | DAILY MX | <= 5.4 lb/d | all year |
| 002 | Zinc, total [as Zn] | QRTR AVG | report only | all year |
| 002 | Zinc, total [as Zn] | QRTR AVG | report only | all year |
| 002 | Zinc, total [as Zn] | QB | report only | all year |
| 002 | Zinc, total [as Zn] | QB | report only | all year |
| 002 | Oil and grease | 30DA AVG | <= 15 mg/L | all year |
| 002 | Oil and grease | DAILY MX | <= 30 mg/L | all year |
| 002 | Oil and grease | 30DA AVG | <= 9 lb/d | all year |
| 002 | Oil and grease | DAILY MX | <= 13 lb/d | all year |
| 002 | Temperature, length of excursion | ANNL TOT | <= 87.6 hr/12mo | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
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