SHAWNEE WCA
Colorado - Community Water System - PWSID: CO0147090
System Information
| PWSID | CO0147090 |
| System Name | SHAWNEE WCA |
| System Type | Community Water System |
| Water Source | Ground Water Under Influence |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 20, 1979 |
| Last Reported | Feb 23, 2026 |
Location & Contact
| State | Colorado |
| City | BUFFALO CREEK |
| ZIP Code | 80425 |
| Address | - |
| Organization | GREEN, JIM |
| Phone | 303-838-5312 |
Population & Service
| Population Served | 50 |
| Service Connections | 29 |
Drinking Water Violations (139)
This water system has 139 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 | Sep 30, 2025 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2025 | - | |
| Jul 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2025 | - | |
| Sep 1, 2022 | Sep 30, 2022 | MR | No | No | - | - | - | Resolved | Sep 30, 2022 | - | |
| Sep 1, 2022 | Sep 30, 2022 | MR | No | No | - | - | - | Resolved | Sep 30, 2022 | - | |
| Sep 1, 2022 | Sep 30, 2022 | MR | No | No | - | - | - | Resolved | Sep 30, 2022 | - | |
| Aug 1, 2022 | Aug 31, 2022 | MR | No | No | - | - | - | Resolved | Aug 31, 2022 | - | |
| Aug 1, 2022 | Aug 31, 2022 | MR | No | No | - | - | - | Resolved | Aug 31, 2022 | - | |
| Aug 1, 2022 | Aug 31, 2022 | MR | No | No | - | - | - | Resolved | Aug 31, 2022 | - | |
| Aug 30, 2015 | - | TT | Yes | No | - | TT | - | Resolved | Feb 13, 2016 | - | |
| Aug 30, 2015 | - | TT | Yes | No | - | TT | - | Resolved | Feb 13, 2016 | - | |
| Aug 30, 2015 | - | TT | Yes | No | - | TT | - | Resolved | Feb 13, 2016 | - | |
| Aug 30, 2015 | - | TT | Yes | No | - | TT | - | Resolved | Feb 13, 2016 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 17.9 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 17.9 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 17.9 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 17.9 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 17.9 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | 17.9 MG/L | 10 mg/L | 10 | Resolved | Sep 30, 2015 | - | |
| Oct 1, 2011 | - | TT | Yes | No | - | TT | - | Resolved | Aug 12, 2013 | - | |
| Oct 1, 2011 | - | TT | Yes | No | - | TT | - | Resolved | Aug 12, 2013 | - | |
| Oct 1, 2011 | - | TT | Yes | No | - | TT | - | Resolved | Aug 12, 2013 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2010 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2010 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2010 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| Sep 1, 2006 | Sep 30, 2006 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2006 | - | |
| May 1, 2006 | May 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2006 | - | |
| May 1, 2006 | May 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2006 | - | |
| May 1, 2006 | May 31, 2006 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2006 | - | |
| Apr 1, 2006 | Apr 30, 2006 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2006 | - | |
| Apr 1, 2006 | Apr 30, 2006 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2006 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2002 | - | |
| Jun 1, 2002 | Jun 30, 2002 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2002 | - | |
| Jun 1, 2002 | Jun 30, 2002 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2002 | - | |
| Jun 1, 2002 | Jun 30, 2002 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2002 | - | |
| May 1, 2002 | May 31, 2002 | MR | No | Yes | - | - | - | Resolved | May 31, 2002 | - | |
| May 1, 2002 | May 31, 2002 | MR | No | Yes | - | - | - | Resolved | May 31, 2002 | - |
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.