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Callaway County Sewer District

Sewage treatment plant, Fulton, Missouri. NPDES permit MO0121274 expired Sep 30, 2024; its limits still apply. Last 12 months: over a limit 6 times (last June 2026), 2 required values missing, 2 of 6 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (16 values), outfall INF form IQ quarterly (2 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
7 values over a limit, 4 required values missing, 0 of 8 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], daily maximum7.6≤ 6.7 mg/L13%
December 2025Nitrogen, ammonia total [as N], monthly average7.6≤ 2.9 mg/L162%
March 2026Nitrogen, ammonia total [as N], daily maximum15.5≤ 6.7 mg/L131%
March 2026Nitrogen, ammonia total [as N], monthly average15.5≤ 2.9 mg/L434%
March 2026pH, maximum9.13≤ 9 SU—
June 2026E. coli, 30-day geometric mean323≤ 206 #/100mL57%

Limits in force (20)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimumreport only (mg/L)Apr–Dec001
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)Apr–Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 120 mg/Lall year001
Solids, total suspendedmonthly average≤ 80 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 4.8 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 6.7 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 2.9 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Chlorine, total residualdaily maximum≤ 17 ug/LApr–Dec001
Chlorine, total residualmonthly average≤ 8 ug/LApr–Dec001
E. colidaily maximum≤ 1030 #/100mLApr–Dec001
E. coli30-day geometric mean≤ 206 #/100mLApr–Dec001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF

How strict are these limits?

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/MO0121274 · MCP: https://passage-data.com/mcp