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Carwashes, Cortland, Nebraska. NPDES permit NE0140341, in force until Dec 31, 2030. Last 12 months: over a limit once (last March 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| March 2026 | Hydrocarbons, total gas chromatograph, daily maximum | 10.5 mg/L | ≤ 10 mg/L | 5% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year |
| Oxygen, dissolved [DO] | value | report only (mg/L) | all year |
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 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 |
| Oil and grease, hexane extr method | value | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | value | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | value | report only (mg/L) | all year |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year |
| Hydrocarbons, total gas chromatograph | monthly average | report only (mg/L) | all year |
| Hydrocarbons, total gas chromatograph | daily maximum | ≤ 10 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 |
| Solids, total dissolved | value | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year |
Cited limits by parameter: Nebraska'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/NE0140341 · MCP: https://passage-data.com/mcp