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Sewage treatment plant, Templeton, Iowa. NPDES permit IA0033782, in force until Dec 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| 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 |
| 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 |
|---|---|---|---|---|
| Chloride [as Cl], 30-day average | 394 mg/L | new | — | — |
| Chloride [as Cl], 30-day average | 3289 lb/d | new | — | — |
| Chloride [as Cl], daily maximum | 5253 lb/d | new | — | — |
| Chloride [as Cl], daily maximum | 630 mg/L | new | — | — |
| E. coli, geometric mean | 630 #/100mL (Mar–Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 22 lb/d (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.6 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 33 lb/d (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 4 mg/L (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.4 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 28.4 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 15.8 lb/d (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.9 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.2 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 18 lb/d (May) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.6 mg/L (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 13.6 lb/d (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 8 lb/d (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 13.8 lb/d (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.7 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 20.6 lb/d (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 2.5 mg/L (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 8.4 lb/d (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 8.8 lb/d (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 1.1 mg/L (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 28.4 lb/d (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], 30-day average | 3.4 mg/L (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.9 mg/L (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 32.5 lb/d (Dec) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 70.1 lb/d (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 8.4 mg/L (Feb) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.9 mg/L (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 32.4 lb/d (Mar) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 4.7 mg/L (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 39.5 lb/d (Apr) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.2 mg/L (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 26.9 lb/d (May) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.2 mg/L (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 26.9 lb/d (Jun) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 22.1 lb/d (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Aug) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 22.2 lb/d (Oct) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 22.2 lb/d (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Nov) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 26.7 lb/d (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 3.2 mg/L (Jul) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 2.7 mg/L (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 22.1 lb/d (Sep) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 165.9 lb/d (Jan) | new | — | — |
| Nitrogen, ammonia total [as N], daily maximum | 19.9 mg/L (Jan) | new | — | — |
Cited limits by parameter: Iowa's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
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