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Electric Services, major discharger, Terrell, North Carolina. NPDES permit NC0004987, in force until Mar 31, 2027. Last 12 months: over a limit 10 times (last August 2026), 34 required values missing, 5 of 54 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Iron, total [as Fe], 30-day average | 2.67 | ≤ 1 mg/L | 167% |
| October 2025 | Iron, total [as Fe], daily maximum | 2.67 | ≤ 1 mg/L | 167% |
| May 2026 | Copper, total [as Cu], 30-day average | 6.2 | ≤ 1 mg/L | 520% |
| May 2026 | Copper, total [as Cu], daily maximum | 6.2 | ≤ 1 mg/L | 520% |
| June 2026 | Copper, total [as Cu], 30-day average | 20.9 | ≤ 1 mg/L | 1990% |
| June 2026 | Copper, total [as Cu], daily maximum | 20.9 | ≤ 1 mg/L | 1990% |
| July 2026 | Copper, total [as Cu], 30-day average | 5.55 | ≤ 1 mg/L | 455% |
| July 2026 | Copper, total [as Cu], daily maximum | 5.55 | ≤ 1 mg/L | 455% |
| August 2026 | Copper, total [as Cu], 30-day average | 4.04 | ≤ 1 mg/L | 304% |
| August 2026 | Copper, total [as Cu], daily maximum | 4.04 | ≤ 1 mg/L | 304% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | 30-day average | ≤ 34.4 deg C | Jul–Oct | 001 |
| Temperature, water deg. centigrade | 30-day average | ≤ 33.3 deg C | Jan, Feb, Mar, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, free available | 30-day average | ≤ .2 mg/L | all year | 001 |
| Chlorine, free available | daily maximum | ≤ .5 mg/L | all year | 001 |
| Turbidity | daily maximum | report only (NTU) | 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 | ≤ 20 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 002 |
| Oil & Grease | 30-day average | ≤ 9 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 12 mg/L | all year | 002 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 002 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 002 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 002 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 4 MGD | all year | 002 |
| Bromide [as Br] | daily maximum | report only (mg/L) | all year | 002 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 002 |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | report only (pass=0;fail=1) | all year | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 005 |
| Conductivity | daily maximum | report only (umho/cm) | all year | 005 |
| pH | daily minimum | ≥ 6 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 005 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 005 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 005 |
| Arsenic, total [as As] | daily maximum | report only (ug/L) | all year | 005 |
| Copper, total [as Cu] | 30-day average | ≤ 1 mg/L | all year | 005 |
| Copper, total [as Cu] | daily maximum | ≤ 1 mg/L | all year | 005 |
| Iron, total [as Fe] | 30-day average | ≤ 1 mg/L | all year | 005 |
| Iron, total [as Fe] | daily maximum | ≤ 1 mg/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 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 008 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 008 |
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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