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Industrial Organic Chemicals, Eddyville, Iowa. NPDES permit IA0065692, in force until Dec 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Aug | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 89.6 deg F | Jul | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 89.6 deg F | Jun | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 89.6 deg F | May | 002 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | Jun | 002 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | May | 002 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | Aug | 002 |
| pH | daily minimum | ≥ 6.5 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Iron, total [as Fe] | 30-day average | ≤ 1 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 1 mg/L | all year | 002 |
| Iron, total [as Fe] | 30-day average | ≤ 6.51 lb/d | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 6.51 lb/d | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Chlorine, total residual | 30-day average | ≤ .388 mg/L | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .388 mg/L | all year | 003 |
| Chlorine, total residual | 30-day average | ≤ 3.88 lb/d | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ 3.88 lb/d | all year | 003 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 N=0;Y=1 | all year | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 N=0;Y=1 | all year | 003 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 54.4 mg/L | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 109 mg/L | all year | 004 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 544 lb/d | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 1088 lb/d | all year | 004 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 004 |
| BOD, 5-day, 20 deg. C | 30-day average | report only (lb/d) | all year | 004 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 004 |
| pH | 30-day average | report only (SU) | all year | 004 |
| pH | daily maximum | report only (SU) | all year | 004 |
| Solids, total suspended | 30-day average | ≤ 8.4 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 17 mg/L | all year | 004 |
| Solids, total suspended | 30-day average | ≤ 84 lb/d | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 168 lb/d | all year | 004 |
| Solids, total suspended | 30-day average | report only (mg/L) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Solids, total suspended | 30-day average | report only (lb/d) | all year | 004 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 004 |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | all year | 004 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Nitrogen, total [as N] | 30-day average | report only (lb/d) | all year | 004 |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year | 004 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.88 mg/L | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17.8 mg/L | all year | 004 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 88.9 lb/d | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 178 lb/d | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (mg/L) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (lb/d) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (lb/d) | all year | 004 |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | 30-day average | report only (lb/d) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 004 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Chlorine, total residual, daily maximum | 0.085 mg/L | tighter | 0.11 mg/L (11 values) | 1.29× |
| Chlorine, total residual, 30-day average | 0.085 mg/L | tighter | 0.07193 mg/L (11 values) | 0.846× |
| Chlorine, total residual, 30-day average | 1.36 lb/d | tighter | 0.6269 lb/d (11 values) | 0.461× |
| Chlorine, total residual, daily maximum | 1.36 lb/d | tighter | 0.961 lb/d (11 values) | 0.707× |
Cited limits by parameter: Iowa's rules and the federal ones.
Same industry: the 57 Chemicals and Allied Products permits in Iowa.
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