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Missouri-American Water Company

Sewerage Systems, Hallsville, Missouri. NPDES permit MO0104990 expired Dec 31, 2024; its limits still apply. Last 12 months: no values over a limit, 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form IW quarterly (2 values), outfall 001 form OM monthly (3 values), outfall 002 form IW quarterly (2 values), outfall 002 form OM monthly (3 values), outfall 003 form IW quarterly (2 values), outfall 003 form OM monthly (3 values), and 5 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 108 reports late

Limits in force (55)

ParameterStatisticLimitMonthsOutfall
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrate total [as NO3]daily maximumreport only (mg/L)all year001
Depth to water level ft below landsurfacedaily maximumreport only (ft)all year001
Precipitation volumetotalreport only (in/d)all year001
Precipitation volumemonthly totalreport only (in/d)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, nitrate total [as NO3]daily maximumreport only (mg/L)all year002
Depth to water level ft below landsurfacedaily maximumreport only (ft)all year002
Precipitation volumetotalreport only (in/d)all year002
Precipitation volumemonthly totalreport only (in/d)all year002
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year003
Nitrogen, nitrate total [as NO3]daily maximumreport only (mg/L)all year003
Depth to water level ft below landsurfacedaily maximumreport only (ft)all year003
Precipitation volumetotalreport only (in/d)all year003
Precipitation volumemonthly totalreport only (in/d)all year003
Application rate area sprayedtotalreport only (acr)all year004
Application rate area sprayedmonthly totalreport only (acr)all year004
Application rate, gallons spray irrigationtotalreport only (gal)all year004
Application rate, gallons spray irrigationmonthly totalreport only (gal)all year004
Spray irrigationtotalreport only (hr/d)all year004
Spray irrigationmonthly totalreport only (hr/d)all year004
Spray irrigation, application ratetotalreport only (in/d)all year004
Spray irrigation, application ratemonthly totalreport only (in/d)all year004
Application rate area sprayedtotalreport only (acr)all year005
Application rate area sprayedmonthly totalreport only (acr)all year005
Application rate, gallons spray irrigationtotalreport only (gal)all year005
Application rate, gallons spray irrigationmonthly totalreport only (gal)all year005
Spray irrigationtotalreport only (hr/d)all year005
Spray irrigationmonthly totalreport only (hr/d)all year005
Spray irrigation, application ratetotalreport only (in/d)all year005
Spray irrigation, application ratemonthly totalreport only (in/d)all year005
Application rate area sprayedtotalreport only (acr)all year006
Application rate area sprayedmonthly totalreport only (acr)all year006
Application rate, gallons spray irrigationtotalreport only (gal)all year006
Application rate, gallons spray irrigationmonthly totalreport only (gal)all year006
Spray irrigationtotalreport only (hr/d)all year006
Spray irrigationmonthly totalreport only (hr/d)all year006
Spray irrigation, application ratetotalreport only (in/d)all year006
Spray irrigation, application ratemonthly totalreport only (in/d)all year006
Application rate area sprayedtotalreport only (acr)all year007
Application rate area sprayedmonthly totalreport only (acr)all year007
Application rate, gallons spray irrigationtotalreport only (gal)all year007
Application rate, gallons spray irrigationmonthly totalreport only (gal)all year007
Spray irrigationtotalreport only (hr/d)all year007
Spray irrigationmonthly totalreport only (hr/d)all year007
Spray irrigation, application ratetotalreport only (in/d)all year007
Spray irrigation, application ratemonthly totalreport only (in/d)all year007
Application rate area sprayedtotalreport only (acr)all year008
Application rate area sprayedmonthly totalreport only (acr)all year008
Application rate, gallons spray irrigationtotalreport only (gal)all year008
Application rate, gallons spray irrigationmonthly totalreport only (gal)all year008
Spray irrigationtotalreport only (hr/d)all year008
Spray irrigationmonthly totalreport only (hr/d)all year008
Spray irrigation, application ratetotalreport only (in/d)all year008
Spray irrigation, application ratemonthly totalreport only (in/d)all year008

Cited limits by parameter: Missouri'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/MO0104990 · MCP: https://passage-data.com/mcp