TWIN VALLEY LAKES IMPROVEMENT ASSN
Iowa - Community Water System - PWSID: IA5200861
System Information
| PWSID | IA5200861 |
| System Name | TWIN VALLEY LAKES IMPROVEMENT ASSN |
| 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 | SOLON |
| ZIP Code | 52333-9324 |
| Address | ATTN BILL BARTHEL OPERATOR |
| Organization | TWIN VALLEY LAKES IMPROVEMENT ASSN |
| Phone | - |
Population & Service
| Population Served | 100 |
| Service Connections | 40 |
Drinking Water Violations (174)
This water system has 174 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jul 1, 2022 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Sep 12, 2022 | - | |
| Jun 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2021 | - | |
| Jun 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2021 | - | |
| Jun 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2021 | - | |
| Jun 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2021 | - | |
| Jun 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2021 | - | |
| Jun 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Jun 30, 2021 | - | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2019 | - | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2019 | - | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2019 | - | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2019 | - | |
| Dec 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Apr 4, 2019 | - | |
| Dec 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Apr 4, 2019 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jan 1, 2012 | Jan 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2012 | - | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2010 | - | |
| Jul 1, 2010 | Jul 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2010 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Sep 1, 2009 | Sep 30, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - |
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.