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Keystone Estates Property Owner's

Civic And Social Associations, Old Monroe, Missouri. NPDES permit MO0134309, in force until Oct 31, 2029. Last 12 months: over a limit 2 times (last May 2026), 16 required values missing, 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (16 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 12 reports late

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

Period endingParameterReportedLimitOver by
May 2026Nitrogen, ammonia total [as N], daily maximum4≤ 3.6 mg/L11%
May 2026Nitrogen, ammonia total [as N], monthly average4≤ 1.4 mg/L186%

Limits in force (30)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 20 mg/Lall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan, Feb
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LApr, May
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LMar, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 3.6 mg/LJul, Aug
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LNov
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LJan, Feb
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LApr, May
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LMar, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ .9 mg/LJul, Aug
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LNov
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Chlorine, total residualdaily maximum≤ 18 ug/Lall year
Chlorine, total residualmonthly average≤ 9 ug/Lall year
E. colidaily maximum≤ 126 #/100mLall year
E. colimonthly averagereport only (#/100mL)all year

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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0134309 · MCP: https://passage-data.com/mcp