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Electric Services, Chamois, Missouri. NPDES permit MO0004766 expired Aug 31, 2026; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Turbidity | value | report only (NTU) | all year | W01 |
| pH | minimum | report only (SU) | all year | W01 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W01 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W01 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W01 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W01 |
| Boron, total recoverable | value | report only (ug/L) | all year | W01 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W01 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W01 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W01 |
| Volume | value | report only (MGD) | all year | W01 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W01 |
| Turbidity | value | report only (NTU) | all year | W02 |
| pH | value | report only (SU) | all year | W02 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W02 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W02 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W02 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W02 |
| Boron, total recoverable | value | report only (ug/L) | all year | W02 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W02 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W02 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W02 |
| Volume | value | report only (MGD) | all year | W02 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W02 |
| Turbidity | value | report only (NTU) | all year | W03 |
| pH | value | report only (SU) | all year | W03 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W03 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W03 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W03 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W03 |
| Boron, total recoverable | value | report only (ug/L) | all year | W03 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W03 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W03 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W03 |
| Volume | value | report only (MGD) | all year | W03 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W03 |
| Turbidity | value | report only (NTU) | all year | W08 |
| pH | value | report only (SU) | all year | W08 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W08 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W08 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W08 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W08 |
| Boron, total recoverable | value | report only (ug/L) | all year | W08 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W08 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W08 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W08 |
| Volume | value | report only (MGD) | all year | W08 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W08 |
| Turbidity | value | report only (NTU) | all year | W09 |
| pH | value | report only (SU) | all year | W09 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W09 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W09 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W09 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W09 |
| Boron, total recoverable | value | report only (ug/L) | all year | W09 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W09 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W09 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W09 |
| Volume | value | report only (MGD) | all year | W09 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W09 |
| Turbidity | value | report only (NTU) | all year | W10 |
| pH | positive results | report only (SU) | all year | W10 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W10 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W10 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W10 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W10 |
| Boron, total recoverable | value | report only (ug/L) | all year | W10 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W10 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W10 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W10 |
| Volume | value | report only (MGD) | all year | W10 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W10 |
| Turbidity | value | report only (NTU) | all year | W11 |
| pH | value | report only (SU) | all year | W11 |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W11 |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W11 |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W11 |
| Selenium, total recoverable | value | report only (ug/L) | all year | W11 |
| Boron, total recoverable | value | report only (ug/L) | all year | W11 |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W11 |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W11 |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W11 |
| Volume | value | report only (MGD) | all year | W11 |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W11 |
| Turbidity | value | report only (NTU) | all year | W4A |
| pH | value | report only (SU) | all year | W4A |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W4A |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W4A |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W4A |
| Selenium, total recoverable | value | report only (ug/kg) | all year | W4A |
| Boron, total recoverable | value | report only (ug/L) | all year | W4A |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W4A |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W4A |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W4A |
| Volume | value | report only (MGD) | all year | W4A |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W4A |
| Turbidity | value | report only (NTU) | all year | W5A |
| pH | value | report only (SU) | all year | W5A |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W5A |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W5A |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W5A |
| Selenium, total recoverable | value | report only (ug/L) | all year | W5A |
| Boron, total recoverable | value | report only (ug/L) | all year | W5A |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W5A |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W5A |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W5A |
| Volume | value | report only (MGD) | all year | W5A |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W5A |
| Turbidity | value | report only (NTU) | all year | W6A |
| pH | value | report only (SU) | all year | W6A |
| Calcium, total [as Ca] | value | report only (mg/L) | all year | W6A |
| Sulfate, total [as SO4] | value | report only (mg/L) | all year | W6A |
| Arsenic, total recoverable | value | report only (ug/L) | all year | W6A |
| Selenium, total recoverable | value | report only (ug/L) | all year | W6A |
| Boron, total recoverable | value | report only (ug/L) | all year | W6A |
| Manganese, total [as Mn] | value | report only (ug/L) | all year | W6A |
| Molybdenum, total recoverable | value | report only (ug/L) | all year | W6A |
| Lithium, total [as Li] | value | report only (ug/L) | all year | W6A |
| Volume | value | report only (MGD) | all year | W6A |
| Depth to water level ft below landsurface | value | report only (ft) | all year | W6A |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 29 Electric Services 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/MO0004766 · MCP: https://passage-data.com/mcp