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Industrial Inorganic Chemicals, major discharger, Wilmington, North Carolina. NPDES permit NC0001228 expired Jan 31, 2022; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | 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 | ≤ 112 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 291 lb/d | all year | 001 |
| Oil & Grease | 30-day average | ≤ 29.4 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 85.3 lb/d | all year | 001 |
| Nitrogen, total [as N] | 30-day average | ≤ 56 lb/d | all year | 001 |
| Nitrogen, total [as N] | daily maximum | ≤ 222 lb/d | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | 30-day average | ≤ 18 lb/d | all year | 001 |
| Fluoride, total [as F] | daily maximum | ≤ 31 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 1.8 MGD | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 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 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 200 #/100mL | all year | 002 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | ≤ 400 #/100mL | all year | 002 |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ .075 MGD | all year | 002 |
Cited limits by parameter: North Carolina's rules and the federal ones.
Same industry: the 17 Chemicals and Allied Products 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/NC0001228 · MCP: https://passage-data.com/mcp