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Shell Knob Seniors Incorporated

Apartment Building Operators, Shell Knob, Missouri. NPDES permit MO0126900, in force until Mar 31, 2030. Last 12 months: over a limit 7 times (last June 2026), 18 required values missing, 2 of 4 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form Q quarterly (18 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 4 required values missing, 1 of 4 reports late

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

Period endingParameterReportedLimitOver by
June 2026E. coli, 30-day geometric mean1011.2≤ 126 #/100mL703%
June 2026E. coli, daily maximum1011.2≤ 630 #/100mL61%
June 2026Nitrogen, ammonia total [as N], daily maximum18≤ 5.1 mg/L253%
June 2026Nitrogen, ammonia total [as N], monthly average18≤ 1.3 mg/L1285%
June 2026Phosphorus, total [as P], monthly average3.29≤ .5 mg/L558%
June 2026Solids, total suspended, monthly average77.6≤ 20 mg/L288%
June 2026Solids, total suspended, weekly average77.6≤ 30 mg/L159%

Limits in force (20)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 11.5 mg/LJan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 5.1 mg/LApr–Sep
Nitrogen, ammonia total [as N]monthly average≤ 2.6 mg/LJan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LApr–Sep
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ .5 mg/Lall year
Iron, total recoverabledaily maximumreport only (ug/L)all year
Iron, total recoverablemonthly averagereport only (ug/L)all year
Aluminum, total recoverabledaily maximum≤ 750 ug/Lall year
Aluminum, total recoverablemonthly average≤ 271.8 ug/Lall year
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≤ 630 #/100mLApr–Dec
E. coli30-day geometric mean≤ 126 #/100mLApr–Dec

How strict are these limits?

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

Same industry: the 188 Real Estate 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/MO0126900 · MCP: https://passage-data.com/mcp