OAKVILLE WATER SUPPLY
Iowa — Community Water System — PWSID: IA5868085
System Information
| PWSID | IA5868085 |
| System Name | OAKVILLE WATER SUPPLY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 27, 1979 |
| Last Reported | Dec 19, 2025 |
Location & Contact
| State | Iowa |
| City | OAKVILLE |
| ZIP Code | 52646 |
| Address | ATTN ALLEN GUGELER AFFIDAVIT OPERATOR |
| Organization | OAKVILLE WATER SUPPLY |
| Phone | 319-759-8120 |
Population & Service
| Population Served | 200 |
| Service Connections | 93 |
Drinking Water Violations (83)
This water system has 83 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | Aug 31, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Archived | Aug 31, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 | Jun 30, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2024 | Nitrate Rule |
| Jul 1, 2023 | Jun 30, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2024 | Nitrate Rule |
| Jul 1, 2023 | Jun 30, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2024 | Nitrate Rule |
| Jul 1, 2023 | Jun 30, 2024 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2024 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2017 | Jun 30, 2018 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Jun 30, 2018 | Nitrate Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 28, 2012 | Consumer Confidence Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 28, 2012 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 2, 2011 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 2, 2011 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 2, 2011 | Consumer Confidence Rule |
| Jul 1, 2011 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Nov 2, 2011 | Consumer Confidence Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Jan 1, 2010 | Jan 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2010 | Total Coliform Rule |
| Mar 1, 2006 | Mar 31, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | Total Coliform Rule |
| Mar 1, 2006 | Mar 31, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | Total Coliform Rule |
| Mar 1, 2006 | Mar 31, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | Total Coliform Rule |
| Jan 1, 1996 | Jan 31, 1996 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Jan 31, 1996 | Volatile Organic Chemicals |
| Jan 1, 1996 | Jan 31, 1996 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Jan 31, 1996 | Volatile Organic Chemicals |
| Jan 1, 1996 | Jan 31, 1996 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Jan 31, 1996 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Xylenes, Total | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Xylenes, Total | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1995 | Dec 31, 1995 | Xylenes, Total | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1995 | Volatile Organic Chemicals |
| Oct 1, 1990 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 26, 1991 | Lead and Copper Rule |
| Oct 1, 1990 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 26, 1991 | Lead and Copper Rule |
| Oct 1, 1990 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 26, 1991 | Lead and Copper Rule |
| Oct 1, 1990 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 26, 1991 | Lead and Copper Rule |
| Oct 1, 1990 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 26, 1991 | Lead and Copper Rule |
| Oct 1, 1990 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 26, 1991 | Lead and Copper Rule |
| Jan 1, 1988 | Dec 31, 1990 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1990 | Arsenic Rule |
| Jan 1, 1988 | Dec 31, 1990 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Barium | MR | No | Yes | — | 2 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1990 | Arsenic Rule |
| Jan 1, 1988 | Dec 31, 1990 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1990 | Arsenic Rule |
| Jan 1, 1988 | Dec 31, 1990 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1990 | Arsenic Rule |
| Jan 1, 1988 | Dec 31, 1990 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Dec 31, 1990 | Arsenic Rule |
| Jan 1, 1988 | Dec 31, 1990 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
| Jan 1, 1988 | Dec 31, 1990 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1990 | Inorganic Chemicals |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.