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MT. Joy Mobile Home Park

Mobile Home Site Operators, Davenport, Iowa. NPDES permit IA0068012, in force until May 31, 2029. Last 12 months: over a limit 17 times (last August 2026), 32 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (23 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
18 values over a limit, 24 required values missing, 0 of 12 reports late

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

All 17 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, geometric mean31100≤ 630 #/100mL4837%
October 2025Nitrogen, ammonia total [as N], 30-day average19.7≤ 7.2 mg/L174%
October 2025Nitrogen, ammonia total [as N], daily maximum19.7≤ 16.6 mg/L19%
November 2025E. coli, geometric mean141000≤ 630 #/100mL22281%
November 2025Nitrogen, ammonia total [as N], 30-day average16.5≤ 10.7 mg/L54%
November 2025Nitrogen, ammonia total [as N], daily maximum16.5≤ 15.5 mg/L6%
December 2025Nitrogen, ammonia total [as N], 30-day average15.6≤ 11.4 mg/L37%
March 2026E. coli, geometric mean613000≤ 630 #/100mL97202%
April 2026E. coli, geometric mean6020≤ 630 #/100mL856%
May 2026E. coli, geometric mean248000≤ 630 #/100mL39265%
May 2026Nitrogen, ammonia total [as N], 30-day average16.1≤ 6.9 mg/L133%
June 2026E. coli, geometric mean24200≤ 630 #/100mL3741%
June 2026Nitrogen, ammonia total [as N], 30-day average6.84≤ 4.5 mg/L52%
July 2026E. coli, geometric mean707000≤ 630 #/100mL—
July 2026Nitrogen, ammonia total [as N], 30-day average13≤ 4.6 mg/L183%
August 2026E. coli, geometric mean242000≤ 630 #/100mL38313%
August 2026Nitrogen, ammonia total [as N], 30-day average6.7≤ 4.4 mg/L52%

Limits in force (67)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. C30-day averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHdaily minimum≥ 6.1 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 2 lb/dall year
Solids, total suspended7-day average≤ 4 lb/dall year
Solids, total suspended30-day averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspended30-day averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]30-day average≤ 4.6 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 7 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 4.5 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 11.4 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 15.4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 7.2 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 6.9 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 15.8 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 4.4 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 4.9 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 15.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 10.7 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 18.6 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 15.4 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 16.9 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 15.4 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 16.1 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 17.2 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 17.4 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 15.7 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 15.5 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ .36 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ .55 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ .4 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ .9 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 1.2 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ .56 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ .5 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 1.2 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ .34 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ .38 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 1.2 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ .84 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 1.5 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 1.2 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 1.2 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 1.4 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 1.2 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 1.2 lb/dNov
E. coligeometric mean≤ 630 #/100mLMar–Nov
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 2 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 3 lb/dall year

How strict are these limits?

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

Same industry: the 53 Real Estate permits in Iowa.

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Your permit document is the final word. As JSON: /api/v1/permits/IA0068012 · MCP: https://passage-data.com/mcp