NPDES permit NC0004308 · Major NON-POTW · effective, expires 2031-01-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Chlorine, total residual (1).
Reports are due about 31 days after each monitoring period ends (the most common figure among NC permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 005 | pH | DAILY MN | >= 6 SU | all year |
| 005 | pH | DAILY MX | <= 9 SU | all year |
| 005 | Cyanide, total [as CN] | 30DA AVG | <= 5 ug/L | all year |
| 005 | Cyanide, total [as CN] | DAILY MX | <= 46.6 ug/L | all year |
| 005 | Fluoride, total [as F] | 30DA AVG | <= 1.8 mg/L | all year |
| 005 | Fluoride, total [as F] | DAILY MX | <= 24 mg/L | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 005 | Chlorine, total residual | DAILY MX | <= 17 ug/L | all year |
| 011 | Cyanide, total [as CN] | 30DA AVG | <= 5 ug/L | all year |
| 011 | Cyanide, total [as CN] | DAILY MX | <= 46.6 ug/L | all year |
| 011 | Fluoride, total [as F] | 30DA AVG | <= 1.8 mg/L | all year |
| 011 | Fluoride, total [as F] | DAILY MX | <= 24 mg/L | all year |
| 011 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 012 | pH | DAILY MN | >= 6 SU | all year |
| 012 | pH | DAILY MX | <= 9 SU | all year |
| 012 | Cyanide, total [as CN] | 30DA AVG | <= 242 ug/L | all year |
| 012 | Cyanide, total [as CN] | DAILY MX | <= 285 ug/L | all year |
| 012 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 013 | pH | DAILY MN | >= 6 SU | all year |
| 013 | pH | DAILY MX | <= 9 SU | all year |
| 013 | Cyanide, total [as CN] | 30DA AVG | <= 5 ug/L | all year |
| 013 | Cyanide, total [as CN] | DAILY MX | <= 46.6 ug/L | all year |
| 013 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| MZ1 | pH | DAILY MX | report only | all year |
| MZ1 | Fluoride, total [as F] | DAILY MX | report only | all year |
| MZ1 | Trichloroethylene | DAILY MX | report only | all year |
| MZ2 | pH | DAILY MX | report only | all year |
| MZ2 | Fluoride, total [as F] | DAILY MX | report only | all year |
| MZ2 | Trichloroethylene | DAILY MX | report only | all year |
| MZ3 | pH | DAILY MX | report only | all year |
| MZ3 | Fluoride, total [as F] | DAILY MX | report only | all year |
| MZ3 | Trichloroethylene | DAILY MX | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states