TIMBERLAKE
Iowa - Community Water System - PWSID: IA5200810
System Information
| PWSID | IA5200810 |
| System Name | TIMBERLAKE |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 27, 1979 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | OXFORD |
| ZIP Code | 52322 |
| Address | ATTN BRIAN PORTWOOD OPERATOR |
| Organization | TIMBERLAKE ESTATES HOA |
| Phone | 319-936-4189 |
Population & Service
| Population Served | 52 |
| Service Connections | 20 |
Drinking Water Violations (216)
This water system has 216 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 4, 2025 | - | Other | No | No | - | - | - | Resolved | Apr 28, 2025 | - | |
| Feb 4, 2025 | - | Other | No | No | - | - | - | Resolved | Apr 28, 2025 | - | |
| Feb 4, 2025 | - | Other | No | No | - | - | - | Resolved | Apr 28, 2025 | - | |
| Feb 4, 2025 | - | Other | No | No | - | - | - | Resolved | Apr 28, 2025 | - | |
| Feb 4, 2025 | - | Other | No | No | - | - | - | Resolved | Apr 28, 2025 | - | |
| Feb 4, 2025 | - | Other | No | No | - | - | - | Resolved | Apr 28, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jan 22, 2025 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jan 22, 2025 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2024 | - | |
| Jul 1, 2024 | Jul 31, 2024 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 1 mg/L | - | Resolved | Sep 30, 2024 | - | |
| Oct 1, 2023 | Sep 30, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2024 | - | |
| May 1, 2011 | May 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | Other | No | No | - | - | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | Other | No | No | - | - | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | Other | No | No | - | - | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | Other | No | No | - | - | - | Resolved | May 31, 2011 | - | |
| May 1, 2011 | May 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2011 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Dec 1, 2010 | Dec 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Sep 1, 2010 | Sep 30, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - |
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.