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Excavation Work, Annapolis, Maryland. NPDES permit MD0068861, in force until Feb 29, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | minimum | report only (SU) | all year |
| pH | minimum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| pH | daily maximum | report only (SU) | all year |
| Trichloroethylene | daily maximum | report only (ug/L) | all year |
| Trichloroethylene | daily maximum | report only (ug/L) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Organics, tot purgeables [Method 624] | daily maximum | ≤ 100 ug/L | all year |
| Organics, tot purgeables [Method 624] | daily maximum | ≤ 100 ug/L | all year |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year |
Cited limits by parameter: Maryland'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/MD0068861 · MCP: https://passage-data.com/mcp