COLFAX WATER SUPPLY
Iowa - Community Water System - PWSID: IA5009056
System Information
| PWSID | IA5009056 |
| System Name | COLFAX 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 | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | COLFAX |
| ZIP Code | 50054 |
| Address | ATTN PUBLIC WORKS DIR: MARK EARLES |
| Organization | COLFAX WATER SUPPLY |
| Phone | 515-674-3829 |
Population & Service
| Population Served | 2,305 |
| Service Connections | 938 |
Drinking Water Violations (60)
This water system has 60 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, 2011 | Sep 30, 2011 | Other | No | No | - | - | - | Resolved | Sep 30, 2011 | - | |
| Jul 1, 2011 | Sep 30, 2011 | Other | No | No | - | - | - | Resolved | Sep 30, 2011 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2010 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2012 | - | |
| Jul 1, 2010 | Aug 31, 2012 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2012 | - | |
| May 1, 2008 | May 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2008 | - | |
| May 1, 2008 | May 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2008 | - | |
| May 1, 2008 | May 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2008 | - | |
| May 1, 2008 | May 31, 2008 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2008 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jul 1, 2006 | Jun 30, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 2007 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2006 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2006 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2006 | - | |
| Jan 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Sep 20, 2006 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.