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Davpp, LLC

Mobile Home Site Operators, Davenport, Iowa. NPDES permit IA0064432, in force until Jul 31, 2031. Last 12 months: over a limit 60 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (20 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
15 values over a limit, 24 required values missing, 0 of 12 reports late

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

All 60 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], 30-day average44≤ 25 mg/L76%
October 2025BOD, carbonaceous [5 day, 20 C], 30-day average5.5044≤ 1.6 lb/d244%
October 2025BOD, carbonaceous [5 day, 20 C], 7-day average44≤ 40 mg/L10%
October 2025BOD, carbonaceous [5 day, 20 C], 7-day average5.5044≤ 2.5 lb/d120%
October 2025Nitrogen, ammonia total [as N], 30-day average.58797≤ .5 lb/d18%
November 2025Nitrogen, ammonia total [as N], 30-day average34≤ 8.6 mg/L295%
November 2025Nitrogen, ammonia total [as N], 30-day average34.0272≤ .5 lb/d6705%
November 2025Nitrogen, ammonia total [as N], daily maximum34≤ 8.6 mg/L295%
November 2025Nitrogen, ammonia total [as N], daily maximum34.0272≤ .5 lb/d6705%
December 2025Nitrogen, ammonia total [as N], 30-day average2.80224≤ .17 lb/d1548%
December 2025Nitrogen, ammonia total [as N], 30-day average42≤ 2.7 mg/L1456%
December 2025Nitrogen, ammonia total [as N], daily maximum2.80224≤ .6 lb/d367%
December 2025Nitrogen, ammonia total [as N], daily maximum42≤ 10.2 mg/L312%
January 2026BOD, carbonaceous [5 day, 20 C], 30-day average9.591≤ 1.6 lb/d499%
January 2026BOD, carbonaceous [5 day, 20 C], 7-day average9.591≤ 2.5 lb/d284%
January 2026Nitrogen, ammonia total [as N], 30-day average14.8452≤ .23 lb/d6354%
January 2026Nitrogen, ammonia total [as N], 30-day average35.6≤ 3.6 mg/L889%
January 2026Nitrogen, ammonia total [as N], daily maximum14.8452≤ .9 lb/d1549%
January 2026Nitrogen, ammonia total [as N], daily maximum35.6≤ 14.3 mg/L149%
January 2026Solids, total suspended, 30-day average3.336≤ 1.9 lb/d76%
January 2026Solids, total suspended, 7-day average3.336≤ 2.8 lb/d19%
February 2026Nitrogen, ammonia total [as N], 30-day average30.7746≤ .26 lb/d11736%
February 2026Nitrogen, ammonia total [as N], 30-day average41≤ 4.2 mg/L876%
February 2026Nitrogen, ammonia total [as N], daily maximum30.7746≤ .94 lb/d3174%
February 2026Nitrogen, ammonia total [as N], daily maximum41≤ 15.1 mg/L172%
March 2026Nitrogen, ammonia total [as N], 30-day average26.2≤ 3.7 mg/L608%
March 2026Nitrogen, ammonia total [as N], 30-day average28.40604≤ .23 lb/d12250%
March 2026Nitrogen, ammonia total [as N], daily maximum26.2≤ 12.1 mg/L117%
March 2026Nitrogen, ammonia total [as N], daily maximum28.40604≤ .7 lb/d3958%
April 2026BOD, carbonaceous [5 day, 20 C], 30-day average17.4306≤ 1.6 lb/d989%
April 2026BOD, carbonaceous [5 day, 20 C], 7-day average17.4306≤ 2.5 lb/d597%
April 2026E. coli, geometric mean2000≤ 126 #/100mL1487%
April 2026Nitrogen, ammonia total [as N], 30-day average27.522≤ .1 lb/d27422%
April 2026Nitrogen, ammonia total [as N], 30-day average30≤ 1.7 mg/L1665%
April 2026Nitrogen, ammonia total [as N], daily maximum27.522≤ .5 lb/d5404%
April 2026Nitrogen, ammonia total [as N], daily maximum30≤ 8.6 mg/L249%
April 2026Solids, total suspended, 30-day average4.40352≤ 1.9 lb/d132%
April 2026Solids, total suspended, 7-day average4.40352≤ 2.8 lb/d57%
May 2026Nitrogen, ammonia total [as N], 30-day average41≤ 2 mg/L1950%
May 2026Nitrogen, ammonia total [as N], 30-day average44.4522≤ .12 lb/d36944%
May 2026Nitrogen, ammonia total [as N], daily maximum41≤ 8.6 mg/L377%
May 2026Nitrogen, ammonia total [as N], daily maximum44.4522≤ .5 lb/d8790%
June 2026Nitrogen, ammonia total [as N], 30-day average29.19≤ .09 lb/d32333%
June 2026Nitrogen, ammonia total [as N], 30-day average35≤ 1.5 mg/L2233%
June 2026Nitrogen, ammonia total [as N], daily maximum29.19≤ .5 lb/d5738%
June 2026Nitrogen, ammonia total [as N], daily maximum35≤ 8.6 mg/L307%
July 2026BOD, carbonaceous [5 day, 20 C], 30-day average23.352≤ 1.6 lb/d1360%
July 2026BOD, carbonaceous [5 day, 20 C], 30-day average28≤ 25 mg/L12%
July 2026BOD, carbonaceous [5 day, 20 C], 7-day average23.352≤ 2.5 lb/d834%
July 2026E. coli, geometric mean2000≤ 126 #/100mL1487%
July 2026Nitrogen, ammonia total [as N], 30-day average18.348≤ .07 lb/d26111%
July 2026Nitrogen, ammonia total [as N], 30-day average22≤ 1.2 mg/L1733%
July 2026Nitrogen, ammonia total [as N], daily maximum18.348≤ .5 lb/d3570%
July 2026Nitrogen, ammonia total [as N], daily maximum22≤ 8.6 mg/L156%
July 2026Solids, total suspended, 30-day average3.336≤ 1.9 lb/d76%
July 2026Solids, total suspended, 7-day average3.336≤ 2.8 lb/d19%
August 2026Nitrogen, ammonia total [as N], 30-day average19≤ 1.1 mg/L1627%
August 2026Nitrogen, ammonia total [as N], 30-day average4.7538≤ .07 lb/d6691%
August 2026Nitrogen, ammonia total [as N], daily maximum19≤ 7.3 mg/L160%
August 2026Nitrogen, ammonia total [as N], daily maximum4.7538≤ .4 lb/d1088%

Limits in force (64)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 1 mg/Lall year
pHdaily minimum≥ 6 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≤ 1.9 lb/dall year
Solids, total suspended7-day average≤ 2.8 lb/dall year
Nitrogen, ammonia total [as N]30-day average≤ 4.2 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 3.6 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 2.6 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 2 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1.2 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 3.7 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.8 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 2.7 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 1.2 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 15.1 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 14.3 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 7.3 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 10.2 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 12.1 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 10.2 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 10.2 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ .26 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ .23 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ .07 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ .16 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ .1 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ .12 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ .08 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ .09 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ .23 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ .11 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ .17 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ .07 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ .94 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ .9 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ .4 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ .6 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ .7 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ .6 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ .6 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dJul
Chlorine, total residual30-day average≤ .053 mg/Lall year
Chlorine, total residualdaily maximum≤ .053 mg/Lall year
Chlorine, total residual30-day average≤ .0033 lb/dall year
Chlorine, total residualdaily maximum≤ .0033 lb/dall year
E. coligeometric mean≤ 126 #/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≤ 1.6 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 2.5 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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