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Electric Services, major discharger, Walnut Cove, North Carolina. NPDES permit NC0024406, in force until Feb 28, 2030. Last 12 months: no values over a limit, 54 required values missing, 1 of 87 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | 90-day average | ≤ 32 deg C | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 003B |
| Turbidity | daily maximum | report only (NTU) | all year | 003B |
| pH | daily maximum | report only (SU) | all year | 003B |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 003B |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 003B |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 003B |
| Cadmium, dissolved [as Cd] | daily maximum | report only (ug/L) | all year | 003B |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 003B |
| Copper, dissolved [as Cu] | daily maximum | report only (ug/L) | all year | 003B |
| Lead, dissolved [as Pb] | daily maximum | report only (ug/L) | all year | 003B |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year | 003B |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 003B |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 003B |
| Bromide [as Br] | daily maximum | report only (mg/L) | all year | 003B |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 003B |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 005 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 005 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 006 |
| pH | daily maximum | ≤ 9 SU | all year | 006 |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1 mg/L | all year | 006 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5 mg/L | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Turbidity | daily maximum | report only (NTU) | all year | 006A |
| pH | daily minimum | ≥ 6 SU | all year | 006A |
| pH | daily maximum | ≤ 9 SU | all year | 006A |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | Feb, May, Aug, Nov | 006A |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | Feb, May, Aug, Nov | 006A |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 006A |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 006A |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 3 MGD | all year | 006A |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | report only (pass=0;fail=1) | all year | 006A |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 009 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 009 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 009 |
| pH | daily maximum | report only (SU) | all year | 009 |
| Solids, total suspended | 30-day average | ≤ 90 mg/L | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 135 mg/L | all year | 009 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 009 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 200 #/100mL | all year | 009 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | ≤ 400 #/100mL | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
Cited limits by parameter: North Carolina's rules and the federal ones.
Same industry: the 20 Electric Services permits in North Carolina.
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