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Water Supply, Charlotte, North Carolina. NPDES permit NC0084549 expired May 31, 2025; its limits still apply. Last 12 months: no values over a limit, 2 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Turbidity | daily maximum | report only (NTU) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ 17 ug/L | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| Turbidity | daily maximum | report only (NTU) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 002 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 002 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ 17 ug/L | all year | 002 |
Cited limits by parameter: North Carolina's rules and the federal ones.
Same industry: the 130 Water Supply permits in North Carolina.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/NC0084549 · MCP: https://passage-data.com/mcp