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Lubricating Oils And Greases, North Charleston, South Carolina. NPDES permit SC0003026 expired Mar 31, 2020; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 002 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 002 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | daily maximum | ≤ .013 mg/L | all year | 002 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 003 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 003 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | ≤ .095 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Chlorine, total residual | daily maximum | ≤ .013 mg/L | all year | 003 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 004 |
| Oil & Grease | monthly average | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Carbon, tot organic [TOC] | monthly average | report only (mg/L) | all year | 004 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
Cited limits by parameter: South Carolina's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/SC0003026 · MCP: https://passage-data.com/mcp