Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Minden, Iowa. NPDES permit IA0048330 expired Jun 30, 2026; its limits still apply. Last 12 months: over a limit 3 times (last November 2025), 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Solids, total suspended, 30-day average | 53.57199 | ≤ 45 lb/d | 19% |
| October 2025 | Solids, total suspended, 7-day average | 81.28164 | ≤ 68 lb/d | 20% |
| November 2025 | BOD, carbonaceous [5 day, 20 C], 30-day average | 17.00805 | ≤ 14 lb/d | 21% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| 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 | ≤ 80 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 120 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 45 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 68 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 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7.4 mg/L | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 23.2 mg/L | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 10.8 mg/L | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 11.8 mg/L | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 12.1 mg/L | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 26.7 mg/L | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7.8 mg/L | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15.9 mg/L | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17.1 mg/L | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 8.1 mg/L | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7 mg/L | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 30.5 mg/L | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 18.5 mg/L | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 23.2 mg/L | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 19.3 mg/L | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17.9 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.9 mg/L | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 42.3 mg/L | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 19.3 mg/L | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.9 mg/L | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17.1 mg/L | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.9 mg/L | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 19.3 mg/L | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 31.8 mg/L | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7 lb/d | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 22 lb/d | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 10.2 lb/d | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 11.1 lb/d | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 11.4 lb/d | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 25.2 lb/d | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7.3 lb/d | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 15.1 lb/d | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 16.3 lb/d | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 7.7 lb/d | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6.7 lb/d | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 28.9 lb/d | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17.5 lb/d | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 22 lb/d | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 18.3 lb/d | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17.1 lb/d | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.1 lb/d | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 41.5 lb/d | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 18.4 lb/d | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.1 lb/d | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 16.3 lb/d | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.1 lb/d | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 18.4 lb/d | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 30.5 lb/d | Feb |
| E. coli | geometric mean | ≤ 630 #/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 | ≤ 14 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 23 lb/d | all year |
Cited limits by parameter: Iowa's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/IA0048330 · MCP: https://passage-data.com/mcp