Passage Data · Check a report · Use it from your AI
Sewage treatment plant, New Castle, Delaware. NPDES permit DE0050547 expired Jul 31, 2024; its limits still apply. Last 12 months: over a limit 3 times (last March 2026), 39 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | BOD, carbonaceous [5 day, 20 C], daily maximum | 62.82 lb/d | ≤ 52.2 lb/d | 20% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], daily average | 52.38 lb/d | ≤ 34.8 lb/d | 51% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], daily maximum | 84.02 lb/d | ≤ 52.2 lb/d | 61% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily average | ≤ 15 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 23 mg/L | all year |
| Solids, total suspended | daily average | report only (lb/d) | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Solids, total suspended | daily average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily average | report only (lb/d) | all year |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | daily average | ≤ 2.04 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.77 mg/L | all year |
| Nitrogen, nitrite total [as N] | daily average | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily average | report only (lb/d) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (lb/d) | all year |
| Nitrogen, nitrate total [as N] | daily average | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily average | report only (lb/d) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (lb/d) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (mg/L) | May–Sep |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | May–Sep |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | daily average | ≤ 10.4 lb/d | May–Sep |
| Nitrogen, Kjeldahl, total [as N] | daily average | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | ≤ 15.6 lb/d | May–Sep |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | rolling average | ≤ 3796 lb/mo | all year |
| Phosphorus, total [as P] | daily average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily average | ≤ 2.1 lb/d | all year |
| Phosphorus, total [as P] | daily maximum | ≤ 4.2 lb/d | all year |
| Enterococci: group D, MF trans, M-E, EIA | daily average | ≤ 33 CFU/100mL | all year |
| Enterococci: group D, MF trans, M-E, EIA | daily maximum | ≤ 185 CFU/100mL | all year |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 34.8 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 52.2 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | daily average | report only (mg/L) | all year |
Cited limits by parameter: Delaware'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/DE0050547 · MCP: https://passage-data.com/mcp