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Industrial Organic Chemicals, Atlantic, Iowa. NPDES permit IA0052718, in force until Jun 30, 2028. Last 12 months: over a limit 4 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| September 2026 | Chloride [as Cl], 30-day average | 2847.211 | ≤ 2358 lb/d | 21% |
| September 2026 | Chloride [as Cl], 30-day average | 922 | ≤ 729 mg/L | 26% |
| September 2026 | Chloride [as Cl], daily maximum | 2847.211 | ≤ 2358 lb/d | 21% |
| September 2026 | Chloride [as Cl], daily maximum | 922 | ≤ 729 mg/L | 26% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6.1 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 79 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 118 lb/d | all year |
| Chloride [as Cl] | 30-day average | ≤ 729 mg/L | all year |
| Chloride [as Cl] | daily maximum | ≤ 729 mg/L | all year |
| Chloride [as Cl] | 30-day average | ≤ 2358 lb/d | all year |
| Chloride [as Cl] | daily maximum | ≤ 2358 lb/d | all year |
| Iron, total [as Fe] | 30-day average | ≤ 1.17 mg/L | all year |
| Iron, total [as Fe] | daily maximum | ≤ 1.17 mg/L | all year |
| Iron, total [as Fe] | 30-day average | ≤ 3.8 lb/d | all year |
| Iron, total [as Fe] | daily maximum | ≤ 3.8 lb/d | all year |
| Chlorine, total residual | 30-day average | ≤ .405 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .405 mg/L | all year |
| Chlorine, total residual | 30-day average | ≤ 1.18 lb/d | all year |
| Chlorine, total residual | daily maximum | ≤ 1.18 lb/d | all year |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Chlorine, total residual, 30-day average | 0.224 lb/d | tighter | 0.07689 lb/d (12 values) | 0.343× |
| Chlorine, total residual, 30-day average | 0.044 mg/L | tighter | 0.02 mg/L (12 values) | 0.455× |
| Chlorine, total residual, daily maximum | 0.224 lb/d | tighter | 0.08488 lb/d (12 values) | 0.379× |
| Chlorine, total residual, daily maximum | 0.044 mg/L | tighter | 0.02 mg/L (12 values) | 0.455× |
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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