Passage Data · Check a report · Use it from your AI
Sewage treatment plant, major discharger, Vinton, Iowa. NPDES permit IA0035891, in force until Sep 30, 2030. Last 12 months: over a limit 12 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Copper, total [as Cu], 30-day average | .020062 | ≤ .01757 mg/L | 14% |
| November 2025 | Copper, total [as Cu], daily maximum | .0397 | ≤ .027 mg/L | 47% |
| April 2026 | Copper, total [as Cu], daily maximum | .0453 | ≤ .027 mg/L | 68% |
| April 2026 | Copper, total [as Cu], daily maximum | .96415 | ≤ .4028 lb/d | 139% |
| May 2026 | Nitrogen, ammonia total [as N], 30-day average | 2.5375 | ≤ 2.1 mg/L | 21% |
| July 2026 | Copper, total [as Cu], 30-day average | .022105 | ≤ .01757 mg/L | 26% |
| July 2026 | Copper, total [as Cu], daily maximum | .0782 | ≤ .027 mg/L | 190% |
| July 2026 | Copper, total [as Cu], daily maximum | .648274 | ≤ .4028 lb/d | 61% |
| August 2026 | Copper, total [as Cu], 30-day average | .019875 | ≤ .01757 mg/L | 13% |
| August 2026 | Copper, total [as Cu], daily maximum | .038 | ≤ .027 mg/L | 41% |
| August 2026 | Nitrogen, total [as N], 30-day average | 501.8743 | ≤ 210.9 lb/d | 138% |
| August 2026 | Nitrogen, total [as N], daily maximum | 895.6225 | ≤ 345.2 lb/d | 159% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | 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 | ≥ 6.5 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 | ≤ 30 mg/L | all year |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year |
| Solids, total suspended | 30-day average | ≤ 448 lb/d | all year |
| Solids, total suspended | 7-day average | ≤ 672 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, total [as N] | 30-day average | ≤ 210.9 lb/d | all year |
| Nitrogen, total [as N] | daily maximum | ≤ 345.2 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 | ≤ 1.1 mg/L | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.6 mg/L | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2.8 mg/L | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4.7 mg/L | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4.1 mg/L | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2.1 mg/L | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 4.1 mg/L | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.2 mg/L | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 3 mg/L | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.8 mg/L | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.9 mg/L | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1.3 mg/L | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.5 mg/L | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.8 mg/L | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.7 mg/L | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.3 mg/L | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.2 mg/L | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.2 mg/L | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 14.7 mg/L | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 8.5 mg/L | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 16 mg/L | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.8 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15.6 mg/L | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10 mg/L | Sep |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 16.6 lb/d | Aug |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 22.7 lb/d | Jun |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 40.3 lb/d | Nov |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 68.6 lb/d | Feb |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 59.2 lb/d | Jan |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 30.2 lb/d | May |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 59 lb/d | Mar |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 17.4 lb/d | Jul |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 43 lb/d | Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 26.5 lb/d | Apr |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 27 lb/d | Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 18.3 lb/d | Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 119.4 lb/d | Aug |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 152.3 lb/d | Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 219.9 lb/d | Nov |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 212.8 lb/d | Feb |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 227.5 lb/d | Jan |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 215 lb/d | May |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 220 lb/d | Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 119.4 lb/d | Jul |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 238.9 lb/d | Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 235 lb/d | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 215 lb/d | Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 140.3 lb/d | Sep |
| 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 |
| Copper, total [as Cu] | 30-day average | ≤ .01757 mg/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ .027 mg/L | all year |
| Copper, total [as Cu] | 30-day average | ≤ .2605 lb/d | all year |
| Copper, total [as Cu] | daily maximum | ≤ .4028 lb/d | all year |
| E. coli | geometric mean | ≤ 126 #/100mL | Mar–Nov |
| 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 |
| 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 | ≤ 373 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 597 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/IA0035891 · MCP: https://passage-data.com/mcp