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Liberty Utilities (Missouri Water) LLC

Civic And Social Associations, Dexter, Missouri. NPDES permit MO0096881, in force until Apr 30, 2030. Last 12 months: over a limit 21 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (14 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
25 values over a limit, 0 required values missing, 2 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 21 values over a limit
Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, monthly average104≤ 30 mg/L247%
December 2025BOD, 5-day, 20 deg. C, weekly average104≤ 45 mg/L131%
December 2025Solids, total suspended, monthly average74≤ 30 mg/L147%
December 2025Solids, total suspended, weekly average74≤ 45 mg/L64%
January 2026BOD, 5-day, 20 deg. C, monthly average49.3≤ 30 mg/L64%
January 2026BOD, 5-day, 20 deg. C, weekly average49.3≤ 45 mg/L10%
January 2026Solids, total suspended, monthly average43≤ 30 mg/L43%
February 2026BOD, 5-day, 20 deg. C, monthly average65.2≤ 30 mg/L117%
February 2026BOD, 5-day, 20 deg. C, weekly average65.2≤ 45 mg/L45%
February 2026Solids, total suspended, monthly average49≤ 30 mg/L63%
February 2026Solids, total suspended, weekly average49≤ 45 mg/L9%
February 2026pH, minimum6.01≥ 6.5 SU—
April 2026E. coli, 30-day geometric mean1414≤ 206 #/100mL586%
April 2026E. coli, daily maximum1414≤ 1030 #/100mL37%
April 2026Solids, total suspended, monthly average38≤ 30 mg/L27%
May 2026Nitrogen, ammonia total [as N], monthly average1.85≤ 1.3 mg/L42%
June 2026E. coli, 30-day geometric mean1050≤ 206 #/100mL410%
June 2026E. coli, daily maximum1050≤ 1030 #/100mL2%
July 2026E. coli, 30-day geometric mean2420≤ 206 #/100mL1075%
July 2026E. coli, daily maximum2420≤ 1030 #/100mL135%
August 2026pH, minimum6.09≥ 6.5 SU—

Limits in force (20)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Oil and grease [soxhlet extr.] tot.daily maximum≤ 15 mg/Lall year
Oil and grease [soxhlet extr.] tot.monthly average≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 4.8 mg/LApr, May, Jun, Jul, Sep
Nitrogen, ammonia total [as N]daily maximum≤ 4.8 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 9.9 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 9.9 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LApr, May, Jun, Jul, Sep
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LAug
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ 2.8 mg/LJan, Feb, Mar, Nov, Dec
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
E. colidaily maximum≤ 1030 #/100mLApr–Oct
E. coli30-day geometric mean≤ 206 #/100mLApr–Oct

How strict are these limits?

Cited limits by parameter: Missouri's rules and the federal ones.

Same industry: the 212 Membership Organizations permits in Missouri.

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Your permit document is the final word. As JSON: /api/v1/permits/MO0096881 · MCP: https://passage-data.com/mcp