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Phosphatic Fertilizers, major discharger, Aurora, North Carolina. NPDES permit NC0003255 expired Nov 30, 2014; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Turbidity | daily maximum | report only (NTU) | 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 | ≤ 60 mg/L | all year | 005 |
| Phosphorus, total [as P] | 30-day average | ≤ 1.5 mg/L | all year | 005 |
| Phosphorus, total [as P] | daily maximum | ≤ 5 mg/L | all year | 005 |
| Fluoride, total [as F] | 30-day average | ≤ 5 mg/L | all year | 005 |
| Fluoride, total [as F] | daily maximum | ≤ 10 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year | 005 |
| LC50 Static 48Hr Acute Pimephales promelas | daily maximum | report only (%) | all year | 005 |
| Turbidity | daily maximum | report only (NTU) | all year | 007 |
| pH | daily minimum | ≥ 6 SU | all year | 007 |
| pH | daily maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 007 |
| Phosphorus, total [as P] | 30-day average | ≤ 1.5 mg/L | all year | 007 |
| Phosphorus, total [as P] | daily maximum | ≤ 5 mg/L | all year | 007 |
| Fluoride, total [as F] | 30-day average | ≤ 5 mg/L | all year | 007 |
| Fluoride, total [as F] | daily maximum | ≤ 10 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 007 |
| LC50 Static 48Hr Acute Pimephales promelas | daily maximum | report only (%) | all year | 007 |
| Turbidity | daily maximum | report only (NTU) | all year | 009 |
| pH | daily minimum | ≥ 6 SU | all year | 009 |
| pH | daily maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 009 |
| Phosphorus, total [as P] | 30-day average | ≤ 1.5 mg/L | all year | 009 |
| Phosphorus, total [as P] | daily maximum | ≤ 5 mg/L | all year | 009 |
| Fluoride, total [as F] | 30-day average | ≤ 5 mg/L | all year | 009 |
| Fluoride, total [as F] | daily maximum | ≤ 10 mg/L | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Turbidity | daily maximum | report only (NTU) | all year | 100 |
| Turbidity | daily maximum | report only (NTU) | Jun–Sep | 100 |
| Turbidity | daily maximum | report only (NTU) | Jun–Sep | 100 |
| pH | daily minimum | ≥ 6 SU | all year | 100 |
| pH | daily maximum | ≤ 9 SU | all year | 100 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 100 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 100 |
| Phosphorus, total [as P] | 30-day average | ≤ 1 mg/L | all year | 100 |
| Fluoride, total [as F] | 7-day average | ≤ 1.8 mg/L | all year | 100 |
| Fluoride, total [as F] | daily maximum | ≤ 7.2 mg/L | all year | 100 |
| Selenium, total [as Se] | 30-day average | ≤ 5 ug/L | all year | 100 |
| Selenium, total [as Se] | daily maximum | ≤ 56 ug/L | all year | 100 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 100 |
| LC50 Static 48Hr Acute Pimephales promelas | daily maximum | report only (%) | all year | 100 |
| Turbidity | daily maximum | report only (NTU) | all year | 101 |
| Turbidity | daily maximum | report only (NTU) | all year | 101 |
| pH | daily minimum | ≥ 6 SU | all year | 101 |
| pH | daily maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 101 |
| Phosphorus, total [as P] | 30-day average | ≤ 1 mg/L | all year | 101 |
| Phosphorus, total [as P] | daily maximum | ≤ 5 mg/L | all year | 101 |
| Fluoride, total [as F] | 7-day average | ≤ 1.8 mg/L | all year | 101 |
| Fluoride, total [as F] | daily maximum | ≤ 7.2 mg/L | all year | 101 |
| Selenium, total [as Se] | 30-day average | ≤ 5 ug/L | all year | 101 |
| Selenium, total [as Se] | daily maximum | ≤ 56 ug/L | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| Turbidity | daily maximum | report only (NTU) | all year | 1MC |
| pH | daily maximum | report only (SU) | all year | 1MC |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 1MC |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 1MC |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 1MC |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 1MC |
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/NC0003255 · MCP: https://passage-data.com/mcp