NPDES permit IL0001791 · Minor NON-POTW · effective, expires 2030-07-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-08-31. Most often over: Solids, total suspended (12), pH (6), Temperature, water deg. fahrenheit (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 | Temperature, water deg. fahrenheit | MO MAX | <= 63 deg F | Jan, Feb, Mar, Dec |
| 001 | Temperature, water deg. fahrenheit | MO MAX | <= 93 deg F | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | pH | MO MIN | >= 6.5 SU | all year |
| 001 | pH | MO MAX | <= 9 SU | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | <= 1 mg/L | 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 |
| A01 | Solids, total suspended | 30DA AVG | <= 12 mg/L | all year |
| A01 | Solids, total suspended | DAILY MX | <= 24 mg/L | all year |
| A01 | Oil & Grease | 30DA AVG | <= 15 mg/L | all year |
| A01 | Oil & Grease | DAILY MX | <= 30 mg/L | all year |
| A01 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| A01 | 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