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Swan Lake Estates, LLC

Mobile Home Site Operators, Bates City, Missouri. NPDES permit MO0056928, in force until Sep 30, 2027. Last 12 months: over a limit 40 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form M monthly (12 values)
Renewal application due
Apr 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
24 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 40 values over a limit
Period endingParameterReportedLimitOver by
November 2025BOD, 5-day, 20 deg. C, monthly average41≤ 30 mg/L37%
November 2025Nitrogen, ammonia total [as N], monthly average6.61≤ 3.1 mg/L113%
December 2025BOD, 5-day, 20 deg. C, monthly average> 45≤ 30 mg/L—
December 2025BOD, 5-day, 20 deg. C, weekly average> 45≤ 45 mg/L—
December 2025Nitrogen, ammonia total [as N], daily maximum24.5≤ 10.1 mg/L143%
December 2025Nitrogen, ammonia total [as N], monthly average24.5≤ 2.7 mg/L807%
January 2026Nitrogen, ammonia total [as N], daily maximum32.4≤ 12.1 mg/L168%
January 2026Nitrogen, ammonia total [as N], monthly average32.4≤ 3.1 mg/L945%
February 2026BOD, 5-day, 20 deg. C, monthly average59≤ 30 mg/L97%
February 2026BOD, 5-day, 20 deg. C, weekly average59≤ 45 mg/L31%
February 2026Nitrogen, ammonia total [as N], daily maximum30.9≤ 10.1 mg/L206%
February 2026Nitrogen, ammonia total [as N], monthly average30.9≤ 2.7 mg/L1044%
February 2026Solids, total suspended, monthly average46≤ 30 mg/L53%
February 2026Solids, total suspended, weekly average46≤ 45 mg/L2%
March 2026Nitrogen, ammonia total [as N], daily maximum12≤ 10.1 mg/L19%
March 2026Nitrogen, ammonia total [as N], monthly average12≤ 2.7 mg/L344%
April 2026BOD, 5-day, 20 deg. C, monthly average38≤ 30 mg/L27%
April 2026E. coli, 30-day geometric mean> 2419.6≤ 206 #/100mL—
April 2026E. coli, daily maximum> 2419.6≤ 1030 #/100mL—
April 2026Nitrogen, ammonia total [as N], daily maximum14.1≤ 10.1 mg/L40%
April 2026Nitrogen, ammonia total [as N], monthly average14.1≤ 2.3 mg/L513%
May 2026BOD, 5-day, 20 deg. C, monthly average33≤ 30 mg/L10%
May 2026E. coli, 30-day geometric mean> 2419.6≤ 206 #/100mL—
May 2026E. coli, daily maximum> 2419.6≤ 1030 #/100mL—
May 2026Nitrogen, ammonia total [as N], monthly average10.4≤ 1.9 mg/L447%
June 2026BOD, 5-day, 20 deg. C, monthly average> 45≤ 30 mg/L—
June 2026BOD, 5-day, 20 deg. C, weekly average> 45≤ 45 mg/L—
June 2026E. coli, 30-day geometric mean> 2419.6≤ 206 #/100mL—
June 2026E. coli, daily maximum> 2419.6≤ 1030 #/100mL—
June 2026Nitrogen, ammonia total [as N], daily maximum29.7≤ 12.1 mg/L145%
June 2026Nitrogen, ammonia total [as N], monthly average29.7≤ 1.5 mg/L1880%
July 2026E. coli, 30-day geometric mean669.3≤ 206 #/100mL225%
July 2026Nitrogen, ammonia total [as N], daily maximum31.6≤ 10.1 mg/L213%
July 2026Nitrogen, ammonia total [as N], monthly average31.6≤ 1.1 mg/L2773%
August 2026BOD, 5-day, 20 deg. C, monthly average> 45≤ 30 mg/L—
August 2026BOD, 5-day, 20 deg. C, weekly average> 45≤ 45 mg/L—
August 2026E. coli, 30-day geometric mean> 2419.6≤ 206 #/100mL—
August 2026E. coli, daily maximum> 2119.6≤ 1030 #/100mL—
August 2026Nitrogen, ammonia total [as N], daily maximum18.9≤ 12.1 mg/L56%
August 2026Nitrogen, ammonia total [as N], monthly average18.9≤ 1.3 mg/L1354%

Limits in force (28)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
pHminimum≥ 6.5 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LJan, Nov
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LFeb, Mar, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LAug
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJul
Nitrogen, ammonia total [as N]monthly average≤ 2.3 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 2.6 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJun
Nitrogen, ammonia total [as N]monthly average≤ 3.1 mg/LJan, Nov
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/LMay
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LFeb, Mar, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LAug
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≤ 1030 #/100mLApr–Oct
E. coli30-day geometric mean≤ 206 #/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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Your permit document is the final word. As JSON: /api/v1/permits/MO0056928 · MCP: https://passage-data.com/mcp