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Gasoline Service Stations, Norman, Oklahoma. NPDES permit OK0042889, in force until Jan 31, 2029. Last 12 months: over a limit once (last January 2026), 1 of 4 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| January 2026 | Solids, total suspended, daily maximum | 101 mg/L | ≤ 40 mg/L | 153% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year |
| Oil & Grease | monthly average | report only (mg/L) | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (gal/d) | all year |
| Chemical oxygen demand, soluble | monthly average | report only (mg/L) | all year |
| Chemical oxygen demand, soluble | daily maximum | report only (mg/L) | all year |
Cited limits by parameter: Oklahoma's rules and the federal ones.
Same industry: the 5 Automotive Dealers and Gasoline Service Stations permits in Oklahoma.
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On EPA ECHO: Facility report · DMR history
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