Passage Data · Check a report · Use it from your AI

Hudson R-9 School District

Elementary And Secondary Schools, Appleton City, Missouri. NPDES permit MO0107808, in force until Feb 28, 2029. Last 12 months: over a limit 23 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (14 values), outfall INF form IQ quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
15 values over a limit, 0 required values missing, 0 of 8 reports late

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

All 23 values over a limit
Period endingParameterReportedLimitOver by
December 2025E. coli, 30-day geometric mean24196≤ 206 #/100mL11646%
December 2025E. coli, 7-day geometric mean24196≤ 1030 #/100mL2249%
December 2025Nitrogen, ammonia total [as N], daily maximum25.8≤ 12.1 mg/L113%
December 2025Nitrogen, ammonia total [as N], monthly average25.8≤ 3.1 mg/L732%
December 2025Solids, suspended percent removal, monthly average minimum83≥ 85 %13%
March 2026BOD, 5-day, 20 deg. C, monthly average35.8≤ 30 mg/L19%
March 2026Nitrogen, ammonia total [as N], daily maximum30.5≤ 10.1 mg/L202%
March 2026Nitrogen, ammonia total [as N], monthly average30.5≤ 2.7 mg/L1030%
March 2026Solids, suspended percent removal, monthly average minimum18≥ 85 %447%
March 2026Solids, total suspended, monthly average55.5≤ 30 mg/L85%
March 2026Solids, total suspended, weekly average55.5≤ 45 mg/L23%
June 2026BOD, 5-day, 20 deg. C, monthly average34.6≤ 30 mg/L15%
June 2026E. coli, 30-day geometric mean24196≤ 206 #/100mL11646%
June 2026E. coli, 7-day geometric mean24196≤ 1030 #/100mL2249%
June 2026Nitrogen, ammonia total [as N], monthly average9.2≤ 1.8 mg/L411%
June 2026Solids, suspended percent removal, monthly average minimum47≥ 85 %253%
June 2026Solids, total suspended, monthly average50≤ 30 mg/L67%
June 2026Solids, total suspended, weekly average50≤ 45 mg/L11%
September 2026E. coli, 30-day geometric mean10462≤ 206 #/100mL4979%
September 2026E. coli, 7-day geometric mean10462≤ 1030 #/100mL916%
September 2026Nitrogen, ammonia total [as N], daily maximum8010≤ 12.1 mg/L66098%
September 2026Nitrogen, ammonia total [as N], monthly average8010≤ 1.3 mg/L—
September 2026Solids, suspended percent removal, monthly average minimum55≥ 85 %200%

Limits in force (22)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LApr–Jun001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LOct–Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LJan–Mar001
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJul–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LApr–Jun001
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LOct–Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LJan–Mar001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LJul–Sep001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. coli7-day geometric mean≤ 1030 #/100mLApr–Dec001
E. coli30-day geometric mean≤ 206 #/100mLApr–Dec001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %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.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MO0107808 · MCP: https://passage-data.com/mcp