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Natural Gas Transmission, Southwest City, Missouri. NPDES permit MO0140759, in force until Jul 17, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Freeboard | daily minimum | ≥ 2 ft | all year | 101 |
| Freeboard | monthly minimum | report only (ft) | all year | 101 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 102 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 102 |
| pH | minimum | report only (SU) | all year | 102 |
| pH | maximum | report only (SU) | all year | 102 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 102 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 102 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 102 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 102 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 102 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 102 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 102 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 102 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 102 |
| Chloride | daily maximum | report only (mg/L) | all year | 102 |
| Chloride | monthly average | report only (mg/L) | all year | 102 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 102 |
| Chemical oxygen demand [COD] | daily maximum | report only (mg/L) | all year | 102 |
| Chemical oxygen demand [COD] | monthly average | report only (mg/L) | all year | 102 |
| Nitrogen, total [as N] | daily maximum | report only (mg/kg) | all year | 103 |
| Nitrogen, total [as N] | monthly average | report only (mg/kg) | all year | 103 |
| Phosphorus, total [as P] | daily maximum | report only (mg/kg) | all year | 103 |
| Phosphorus, total [as P] | monthly average | report only (mg/kg) | all year | 103 |
| Potassium, total [as K] | daily maximum | report only (mg/kg) | all year | 103 |
| Potassium, total [as K] | monthly average | report only (mg/kg) | all year | 103 |
| Arsenic, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Arsenic, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Selenium, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Selenium, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Thallium, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Thallium, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Boron, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Boron, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Barium, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Barium, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Nickel, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Nickel, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Silver total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Silver total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Zinc, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Zinc, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Aluminum, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Aluminum, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Cadmium, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Cadmium, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Lead, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Lead, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Chromium, total recoverable | daily maximum | report only (mg/L) | all year | 103 |
| Chromium, total recoverable | monthly average | report only (mg/L) | all year | 103 |
| Copper, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Copper, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| Molybdenum, total recoverable | daily maximum | report only (mg/kg) | all year | 103 |
| Molybdenum, total recoverable | monthly average | report only (mg/kg) | all year | 103 |
| E. coli | daily maximum | report only (CFU/100mL) | all year | 103 |
| E. coli | monthly average | report only (CFU/100mL) | all year | 103 |
| Sludge weight, wet | daily maximum | report only (lb) | all year | 103 |
| Sludge weight, wet | monthly average | report only (lb) | all year | 103 |
| Salmonella | daily maximum | report only (MPN/4g) | all year | 103 |
| Salmonella | monthly average | report only (MPN/4g) | all year | 103 |
| Mercury, total [as Hg] | daily maximum | report only (mg/kg) | all year | 103 |
| Mercury, total [as Hg] | monthly average | report only (mg/kg) | all year | 103 |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 6 Natural Gas Transmission permits in Missouri.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MO0140759 · MCP: https://passage-data.com/mcp