Passage Data · Check a report · Use it from your AI
Electric Services, major discharger, Marston, Missouri. NPDES permit MO0001171 expired Dec 31, 2024; its limits still apply. Last 12 months: over a limit once (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Solids, total suspended, daily maximum | 73.2 | ≤ 50 mg/L | 46% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (cfs) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (cfs) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (cfs) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (cfs) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 15 mg/L | all year | 003 |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 10 mg/L | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | all year | 003 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Nitrogen, Kjeldahl, total [TKN] [water] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, Kjeldahl, total [TKN] [water] | monthly average | report only (mg/L) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 005 |
| pH | minimum | report only (SU) | all year | 005 |
| pH | maximum | report only (SU) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 005 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| pH | minimum | report only (SU) | all year | 006 |
| pH | maximum | report only (SU) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 006 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 006 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | all year | 006 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 006 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 006 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 006 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year | 006 |
| Chlorine, total residual | monthly average | report only (ug/L) | all year | 006 |
| Nitrogen, Kjeldahl, total [TKN] [water] | daily maximum | report only (mg/L) | all year | 006 |
| Nitrogen, Kjeldahl, total [TKN] [water] | monthly average | report only (mg/L) | all year | 006 |
| Toxicity [acute], Ceriodaphnia dubia | value | report only (toxic) | all year | 006 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | value | report only (toxic) | all year | 006 |
| Chemical oxygen demand [COD] | daily maximum | report only (mg/L) | all year | 006 |
| Chemical oxygen demand [COD] | monthly average | report only (mg/L) | all year | 006 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 81 deg F | Oct | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 60 deg F | Dec | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 92 deg F | Jul, Aug | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 63 deg F | Mar | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 53 deg F | Jan, Feb | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 83 deg F | May | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | Jun, Sep | 007 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 73 deg F | Apr, Nov | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Oct | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Dec | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jul, Aug | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Mar | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jan, Feb | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | May | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jun, Sep | 007 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Apr, Nov | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (cfs) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (cfs) | all year | 007 |
| Month excursion time [min] | total | ≤ 88 hr | all year | 007 |
| Month excursion time [min] | monthly total | report only (hr) | all year | 007 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 008 |
| pH | minimum | report only (SU) | all year | 008 |
| pH | maximum | report only (SU) | all year | 008 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 008 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 008 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 009 |
| pH | maximum | ≤ 9 SU | all year | 009 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 009 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 009 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 15 mg/L | all year | 009 |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 10 mg/L | all year | 009 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 009 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 009 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 009 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 009 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 009 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 009 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | all year | 009 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Nitrogen, Kjeldahl, total [TKN] [water] | daily maximum | report only (mg/L) | all year | 009 |
| Nitrogen, Kjeldahl, total [TKN] [water] | monthly average | report only (mg/L) | all year | 009 |
| Freeboard | daily minimum | ≥ 2 ft | all year | 011 |
| pH | minimum | ≥ 6 SU | all year | 01S |
| pH | maximum | ≤ 9 SU | all year | 01S |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 01S |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 01S |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 01S |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 01S |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 01S |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 01S |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 20 mg/L | all year | 01S |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 15 mg/L | all year | 01S |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01S |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01S |
| pH | minimum | ≥ 6 SU | all year | 02S |
| pH | maximum | ≤ 9 SU | all year | 02S |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 02S |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 02S |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 02S |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 02S |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 02S |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 02S |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 20 mg/L | all year | 02S |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 15 mg/L | all year | 02S |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 02S |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 02S |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 29 Electric Services permits in Missouri.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MO0001171 · MCP: https://passage-data.com/mcp