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Food Preparations, major discharger, Sergeant Bluff, Iowa. NPDES permit IA0004413, in force until Dec 31, 2028. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| September 2026 | Nitrogen, ammonia total [as N], daily maximum | 88.8 | ≤ 87.6 mg/L | 1% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 248 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 409 mg/L | all year |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 7938 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 13122 lb/d | all year |
| BOD, 5-day, 20 deg. C | 30-day average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | 30-day average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| pH | 30-day average | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| Solids, total suspended | 30-day average | ≤ 227 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 425 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 7265 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 13618 lb/d | all year |
| Solids, total suspended | 30-day average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | 30-day average | report only (lb/d) | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Oil & Grease | 30-day average | ≤ 37 mg/L | all year |
| Oil & Grease | daily maximum | ≤ 93 mg/L | all year |
| Oil & Grease | 30-day average | ≤ 1191 lb/d | all year |
| Oil & Grease | daily maximum | ≤ 2983 lb/d | all year |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | 30-day average | report only (lb/d) | all year |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 155.9 mg/L | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 87.2 mg/L | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 87.4 mg/L | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 107.3 mg/L | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 126.7 mg/L | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 141 mg/L | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 105.9 mg/L | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 107.2 mg/L | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 88.1 mg/L | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 87.6 mg/L | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 106.8 mg/L | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 87.7 mg/L | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 155.9 mg/L | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 87.2 mg/L | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 87.4 mg/L | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 107.3 mg/L | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 126.7 mg/L | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 141 mg/L | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 105.9 mg/L | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 107.2 mg/L | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 88.1 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 87.6 mg/L | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 106.8 mg/L | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 87.7 mg/L | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7700.5 lb/d | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4263.5 lb/d | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4312.1 lb/d | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 5158 lb/d | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6201.4 lb/d | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6997.1 lb/d | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4805.1 lb/d | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4271.8 lb/d | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4342.3 lb/d | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4311.4 lb/d | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4805.1 lb/d | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4286.3 lb/d | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7700.5 lb/d | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4263.5 lb/d | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4312.1 lb/d | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5158 lb/d | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6201.4 lb/d | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6997.1 lb/d | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4805.1 lb/d | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4271.8 lb/d | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4342.3 lb/d | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4311.4 lb/d | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4805.1 lb/d | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4286.3 lb/d | Oct |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (lb/d) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (lb/d) | all year |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | 30-day average | report only (lb/d) | all year |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year |
| Chloride [as Cl] | 30-day average | ≤ 4800 mg/L | all year |
| Chloride [as Cl] | daily maximum | ≤ 4800 mg/L | all year |
| Chloride [as Cl] | 30-day average | ≤ 233206 lb/d | all year |
| Chloride [as Cl] | daily maximum | ≤ 233206 lb/d | all year |
| Iron, total [as Fe] | 30-day average | ≤ 8.013 mg/L | all year |
| Iron, total [as Fe] | daily maximum | ≤ 8.013 mg/L | all year |
| Iron, total [as Fe] | 30-day average | ≤ 389.5 lb/d | all year |
| Iron, total [as Fe] | daily maximum | ≤ 389.5 lb/d | all year |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 N=0;Y=1 | all year |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | ≤ 1 N=0;Y=1 | all year |
Cited limits by parameter: Iowa's rules and the federal ones.
Same industry: the 48 Food and Kindred Products permits in Iowa.
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On EPA ECHO: Facility report · DMR history
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