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Shell Knob School District #78

Elementary And Secondary Schools, Shell Knob, Missouri. NPDES permit MO0118231, in force until Jul 31, 2030. Last 12 months: over a limit 3 times (last December 2025), 20 required values missing, 2 of 8 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (18 values), outfall INF form IQ quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values over a limit, 38 required values missing, 2 of 5 reports late

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

Period endingParameterReportedLimitOver by
December 2025Chlorine, total residual, daily maximum< 200≤ 17 ug/L1076%
December 2025Chlorine, total residual, monthly average< 200≤ 8 ug/L2400%
December 2025E. coli, daily maximum1203≤ 126 #/100mL855%

Limits in force (22)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 20 mg/Lall year001
Solids, total suspendedmonthly average≤ 15 mg/Lall year001
Oil and grease [soxhlet extr.] tot.daily maximumreport only (mg/L)all year001
Oil and grease [soxhlet extr.] tot.monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximum≤ 6 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.2 mg/LApr–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 2.4 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/Lall year001
Chlorine, total residualmonthly average≤ 8 ug/Lall year001
E. colidaily maximum≤ 126 #/100mLall year001
E. colimonthly averagereport only (#/100mL)all year001
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.

Same industry: the 55 Educational Services 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/MO0118231 · MCP: https://passage-data.com/mcp