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Museums And Art Galleries, Bear, Delaware. NPDES permit DE0050083 expired Jul 31, 2025; its limits still apply. Last 12 months: no values over a limit, 33 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | daily average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily average | ≤ 26 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 40 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily average | ≤ 30 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year |
| Solids, total suspended | daily average | ≤ 26 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 40 lb/d | all year |
| Solids, total suspended | daily average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | 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 | ≤ 9 lb/d | all year |
| Nitrogen, total [as N] | daily maximum | report only (lb/d) | 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 lb/d | all year |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year |
| Enterococci: group D, MF trans, M-E, EIA | daily average | ≤ 100 CFU/100mL | all year |
| Enterococci: group D, MF trans, M-E, EIA | daily maximum | ≤ 185 CFU/100mL | all year |
| Facility operated during month, # days | monthly total | report only (d/mo) | 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 |
| Chlorine, total residual | daily minimum | ≥ 1 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ 4 mg/L | 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] | monthly average | ≤ 13 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | report only (lb/d) | all year |
Cited limits by parameter: Delaware's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/DE0050083 · MCP: https://passage-data.com/mcp