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YES Byrnes Mill, LLC

Mobile Home Site Operators, House Springs, Missouri. NPDES permit MO0105856 expired Aug 31, 2022; its limits still apply. Last 12 months: over a limit 36 times (last September 2026), 4 required values missing, 3 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (11 values), form B quarterly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
41 values over a limit, 9 required values missing, 4 of 16 reports late

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

All 36 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, 30-day geometric mean1935.88≤ 126 #/100mL1436%
October 2025E. coli, daily maximum2419.6≤ 630 #/100mL284%
October 2025Nitrogen, ammonia total [as N], daily maximum12≤ 8.9 mg/L35%
October 2025Nitrogen, ammonia total [as N], monthly average12≤ 2.8 mg/L329%
November 2025Nitrogen, ammonia total [as N], daily maximum12≤ 8.9 mg/L35%
November 2025Nitrogen, ammonia total [as N], monthly average12≤ 2.8 mg/L329%
December 2025Nitrogen, ammonia total [as N], daily maximum12≤ 8.9 mg/L35%
December 2025Nitrogen, ammonia total [as N], monthly average12≤ 2.8 mg/L329%
January 2026Nitrogen, ammonia total [as N], daily maximum12≤ 8.9 mg/L35%
January 2026Nitrogen, ammonia total [as N], monthly average12≤ 2.8 mg/L329%
February 2026Nitrogen, ammonia total [as N], daily maximum12≤ 8.9 mg/L35%
February 2026Nitrogen, ammonia total [as N], monthly average12≤ 2.8 mg/L329%
April 2026E. coli, 30-day geometric mean1018.92≤ 126 #/100mL709%
April 2026E. coli, daily maximum2419.6≤ 630 #/100mL284%
April 2026Nitrogen, ammonia total [as N], daily maximum12≤ 4 mg/L200%
April 2026Nitrogen, ammonia total [as N], monthly average12≤ 1.4 mg/L757%
May 2026E. coli, 30-day geometric mean2419.6≤ 126 #/100mL1820%
May 2026E. coli, daily maximum2419.6≤ 630 #/100mL284%
May 2026Nitrogen, ammonia total [as N], daily maximum12≤ 4 mg/L200%
May 2026Nitrogen, ammonia total [as N], monthly average12≤ 1.4 mg/L757%
June 2026E. coli, 30-day geometric mean743.6≤ 126 #/100mL490%
June 2026E. coli, daily maximum2419.6≤ 630 #/100mL284%
June 2026Nitrogen, ammonia total [as N], daily maximum12≤ 4 mg/L200%
June 2026Nitrogen, ammonia total [as N], monthly average12≤ 1.4 mg/L757%
July 2026E. coli, 30-day geometric mean1580.02≤ 126 #/100mL1154%
July 2026E. coli, daily maximum2419.6≤ 630 #/100mL284%
July 2026Nitrogen, ammonia total [as N], daily maximum12≤ 4 mg/L200%
July 2026Nitrogen, ammonia total [as N], monthly average12≤ 1.4 mg/L757%
August 2026E. coli, 30-day geometric mean2168.1≤ 126 #/100mL1621%
August 2026E. coli, daily maximum2419.6≤ 630 #/100mL284%
August 2026Nitrogen, ammonia total [as N], daily maximum12≤ 4 mg/L200%
August 2026Nitrogen, ammonia total [as N], monthly average12≤ 1.4 mg/L757%
September 2026E. coli, 30-day geometric mean2176≤ 126 #/100mL1627%
September 2026E. coli, daily maximum2419≤ 630 #/100mL284%
September 2026Nitrogen, ammonia total [as N], daily maximum7.24≤ 4 mg/L81%
September 2026Nitrogen, ammonia total [as N], monthly average7.24≤ 1.4 mg/L417%

Limits in force (17)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 65 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 45 mg/Lall year
pHminimum≥ 6.5 SUall year
Solids, total suspendedweekly average≤ 110 mg/Lall year
Solids, total suspendedmonthly average≤ 70 mg/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LJan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LApr–Sep
Nitrogen, ammonia total [as N]monthly average≤ 2.8 mg/LJan, Feb, Mar, Oct, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LApr–Sep
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all 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–Oct
E. coli30-day geometric mean≤ 126 #/100mLApr–Oct

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/MO0105856 · MCP: https://passage-data.com/mcp