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Sanitary Services, Walhalla, South Carolina. NPDES permit SC0049093 expired Aug 31, 2018; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.36 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.37 mg/L | Mar–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 19.89 mg/L | Jan, Feb, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 19.89 mg/L | Mar–Oct |
| 1,2-cis-Dichloroethene | monthly average | ≤ .35 mg/L | all year |
| 1,2-cis-Dichloroethene | daily maximum | ≤ .7 mg/L | all year |
| Chloroform | monthly average | ≤ .38 mg/L | all year |
| Chloroform | daily maximum | ≤ .68 mg/L | all year |
| 1,1-Dichloroethane | monthly average | ≤ 6.1 mg/L | all year |
| 1,1-Dichloroethane | daily maximum | ≤ 12 mg/L | all year |
| 1,1,1-Trichloroethane | monthly average | ≤ .55 mg/L | all year |
| 1,1,1-Trichloroethane | daily maximum | ≤ 1.1 mg/L | all year |
| Vinyl chloride | monthly average | ≤ .0024 mg/L | all year |
| Vinyl chloride | daily maximum | ≤ .0035 mg/L | all year |
| Trichloroethylene | monthly average | ≤ .03 mg/L | all year |
| Trichloroethylene | daily maximum | ≤ .043 mg/L | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| 1,1-Dichloroethene | monthly average | ≤ .35 mg/L | all year |
| 1,1-Dichloroethene | daily maximum | ≤ .7 mg/L | all year |
| Acetone | monthly average | report only (mg/L) | all year |
| Acetone | daily maximum | report only (mg/L) | all year |
| 1,4-Dioxane | monthly average | ≤ .97 mg/L | all year |
| 1,4-Dioxane | daily maximum | ≤ 1.4 mg/L | all year |
Cited limits by parameter: South Carolina's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/SC0049093 · MCP: https://passage-data.com/mcp