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Sewerage Systems, major discharger, Washington, the District of Columbia. NPDES permit DC0000221, in force until Dec 19, 2028. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Solids, total suspended | per discharge | report only (mg/L) | all year | 103 |
| Solids, total suspended | per discharge | report only (mg/L) | all year | 103 |
| Nitrogen, total [as N] | annual maximum | report only (mg/L) | all year | 103 |
| Nitrogen, total [as N] | annual maximum | report only (mg/L) | all year | 103 |
| Phosphorus, total [as P] | annual maximum | report only (mg/L) | all year | 103 |
| Phosphorus, total [as P] | annual maximum | report only (mg/L) | all year | 103 |
| Cadmium, total [as Cd] | annual maximum | report only (mg/L) | all year | 103 |
| Cadmium, total [as Cd] | annual maximum | report only (mg/L) | all year | 103 |
| Copper, total [as Cu] | annual maximum | report only (mg/L) | all year | 103 |
| Copper, total [as Cu] | annual maximum | report only (mg/L) | all year | 103 |
| Lead, total [as Pb] | annual maximum | report only (mg/L) | all year | 103 |
| Lead, total [as Pb] | annual maximum | report only (mg/L) | all year | 103 |
| Zinc, total [as Zn] | annual maximum | report only (mg/L) | all year | 103 |
| Zinc, total [as Zn] | annual maximum | report only (mg/L) | all year | 103 |
| E. coli | annual maximum | report only (MPN/100mL) | all year | 103 |
| E. coli | annual maximum | report only (MPN/100mL) | all year | 103 |
| Solids, total suspended | per discharge | report only (mg/L) | all year | 1035 |
| Solids, total suspended | per discharge | report only (mg/L) | all year | 1035 |
| Nitrogen, total [as N] | annual maximum | report only (mg/L) | all year | 1035 |
| Nitrogen, total [as N] | annual maximum | report only (mg/L) | all year | 1035 |
| Phosphorus, total [as P] | annual maximum | report only (mg/L) | all year | 1035 |
| Phosphorus, total [as P] | annual maximum | report only (mg/L) | all year | 1035 |
| Cadmium, total [as Cd] | annual maximum | report only (mg/L) | all year | 1035 |
| Cadmium, total [as Cd] | annual maximum | report only (mg/L) | all year | 1035 |
| Copper, total [as Cu] | annual maximum | report only (mg/L) | all year | 1035 |
| Copper, total [as Cu] | annual maximum | report only (mg/L) | all year | 1035 |
| Lead, total [as Pb] | annual maximum | report only (mg/L) | all year | 1035 |
| Lead, total [as Pb] | annual maximum | report only (mg/L) | all year | 1035 |
| Zinc, total [as Zn] | annual maximum | report only (mg/L) | all year | 1035 |
| Zinc, total [as Zn] | annual maximum | report only (mg/L) | all year | 1035 |
| E. coli | annual maximum | report only (MPN/100mL) | all year | 1035 |
| E. coli | annual maximum | report only (MPN/100mL) | all year | 1035 |
Cited limits by parameter: the District of Columbia'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/DC0000221 · MCP: https://passage-data.com/mcp