NPDES permit IA0053431 · Minor NON-POTW · effective, expires 2027-11-30 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-08-31. Most often over: pH (3).
Reports are due about 15 days after each monitoring period ends (the most common figure among IA permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 80.4 deg F | Feb |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 70.9 deg F | Jan |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 89.6 deg F | Jul |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 89.6 deg F | Aug |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 82.4 deg F | Apr |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 89.6 deg F | Sep |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 89.6 deg F | Jun |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 71.6 deg F | Dec |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 89.6 deg F | Oct |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 87.4 deg F | Mar |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 80.6 deg F | Nov |
| 001 | Temperature, water deg. fahrenheit | 30DA AVG | <= 84.9 deg F | May |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Feb |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Jan |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Jul |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Aug |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Apr |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Sep |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Jun |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Dec |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Oct |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Mar |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | Nov |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 89.6 deg F | May |
| 001 | pH | DAILY MN | >= 6.5 SU | all year |
| 001 | pH | DAILY MX | <= 9 SU | all year |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1 mg/L | Aug |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 4 mg/L | Feb |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.5 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.6 mg/L | Oct |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.5 mg/L | Dec |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.7 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.3 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.3 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 3.4 mg/L | Jan |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1 mg/L | Jul |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 2.1 mg/L | Mar |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= 1.1 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 5.7 mg/L | Aug |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 6.9 mg/L | Feb |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 5.7 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 5.7 mg/L | Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 6.9 mg/L | Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 4.7 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 5.7 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 5.7 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 10.1 mg/L | Jan |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 5.7 mg/L | Jul |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8.4 mg/L | Mar |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 4.7 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .09 lb/d | Aug |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .36 lb/d | Feb |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .14 lb/d | Apr |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .14 lb/d | Oct |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .23 lb/d | Dec |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .16 lb/d | May |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .21 lb/d | Nov |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .12 lb/d | Jun |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .31 lb/d | Jan |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .09 lb/d | Jul |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .19 lb/d | Mar |
| 001 | Nitrogen, ammonia total [as N] | 30DA AVG | <= .1 lb/d | Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .53 lb/d | Aug |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .64 lb/d | Feb |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .53 lb/d | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .53 lb/d | Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .64 lb/d | Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .43 lb/d | May |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .53 lb/d | Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .53 lb/d | Jun |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .93 lb/d | Jan |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .53 lb/d | Jul |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .77 lb/d | Mar |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .43 lb/d | Sep |
| 001 | Iron, total [as Fe] | 30DA AVG | <= 1 mg/L | all year |
| 001 | Iron, total [as Fe] | DAILY MX | <= 1 mg/L | all year |
| 001 | Iron, total [as Fe] | 30DA AVG | <= .092 lb/d | all year |
| 001 | Iron, total [as Fe] | DAILY MX | <= .092 lb/d | all year |
| 001 | Chlorine, total residual | 30DA AVG | <= .011 mg/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .019 mg/L | all year |
| 001 | Chlorine, total residual | 30DA AVG | <= .001 lb/d | all year |
| 001 | Chlorine, total residual | DAILY MX | <= .0017 lb/d | all year |
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