Passage Data · Check a report · Use it from your AI
Sewage treatment plant, Cylinder, Iowa. NPDES permit IA0064823, in force until Jul 31, 2029. Last 12 months: over a limit 2 times (last June 2026), 6 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | BOD, carbonaceous [5 day, 20 C], 30-day average | 26.5 | ≤ 25 mg/L | 6% |
| June 2026 | Chloride [as Cl], 30-day average | 435 | ≤ 389 mg/L | 12% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6.5 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 |
| Chloride [as Cl] | 30-day average | ≤ 389 mg/L | all year |
| Chloride [as Cl] | daily maximum | ≤ 629 mg/L | all year |
| Chloride [as Cl] | 30-day average | ≤ 972 lb/d | all year |
| Chloride [as Cl] | daily maximum | ≤ 1573 lb/d | all year |
| 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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], 30-day average | 4.7 lb/d (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 6.8 lb/d (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 8.4 lb/d (May) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 8.4 lb/d (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.9 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 10.3 lb/d (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.4 mg/L (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.4 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.2 lb/d (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.7 mg/L (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 4.1 mg/L (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.3 mg/L (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 7.5 lb/d (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 4.8 mg/L (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 12 lb/d (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.9 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 9.8 lb/d (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.9 lb/d (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.2 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 9.9 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 4 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.2 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3 lb/d (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 20 mg/L (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 6.8 lb/d (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.4 mg/L (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 8.4 lb/d (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 50 lb/d (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.4 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 6.8 lb/d (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 8.4 lb/d (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 6.8 lb/d (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 9.8 lb/d (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.9 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 8.5 mg/L (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 21.3 lb/d (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 4.8 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 12.1 lb/d (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 6.8 lb/d (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 4 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 9.9 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 8.2 lb/d (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.3 mg/L (Jul) | new | — | — |
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/IA0064823 · MCP: https://passage-data.com/mcp