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Elementary And Secondary Schools, Jackson Junction, Iowa. NPDES permit IA0067423, in force until Feb 28, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 1 mg/L | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 80 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 120 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 16 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 24 lb/d | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.3 mg/L | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 10.1 mg/L | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.3 mg/L | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6.9 mg/L | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6.9 mg/L | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 10.1 mg/L | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 12.2 mg/L | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 21.8 mg/L | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 43 mg/L | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.3 mg/L | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6.9 mg/L | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6.9 mg/L | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.3 mg/L | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.3 mg/L | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.1 mg/L | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 12.2 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 21.8 mg/L | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 43 mg/L | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.3 mg/L | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.9 mg/L | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.7 lb/d | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2 lb/d | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.7 lb/d | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.4 lb/d | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.4 lb/d | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2 lb/d | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2.4 lb/d | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4.4 lb/d | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.6 lb/d | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.7 lb/d | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.4 lb/d | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.4 lb/d | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 lb/d | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2 lb/d | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 lb/d | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.4 lb/d | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.4 lb/d | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2 lb/d | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.4 lb/d | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 4.4 lb/d | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.6 lb/d | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 lb/d | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.4 lb/d | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.4 lb/d | Aug |
| E. coli | geometric mean | ≤ 2603 #/100mL | Mar–Nov |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 40 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | ≤ 5 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 8 lb/d | all year |
Cited limits by parameter: Iowa's rules and the federal ones.
Same industry: the 30 Educational Services permits in Iowa.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IA0067423 · MCP: https://passage-data.com/mcp