COLORADO MOUNTAIN RANCH
Colorado — Transient Non-Community — PWSID: CO0207755
System Information
| PWSID | CO0207755 |
| System Name | COLORADO MOUNTAIN RANCH |
| System Type | Transient Non-Community |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 20, 1979 |
| Last Reported | Feb 23, 2026 |
Location & Contact
| State | Colorado |
| City | BOULDER |
| ZIP Code | 80302 |
| Address | 10077 GOLD HILL RD |
| Organization | WALKER, MIKE |
| Phone | 303-442-4557 |
Population & Service
| Population Served | 205 |
| Service Connections | 1 |
Drinking Water Violations (65)
This water system has 65 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, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 2011 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 2011 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2009 | — | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2007 | — | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2007 | — | |
| Aug 1, 2007 | Aug 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2007 | — | |
| Aug 1, 2006 | Aug 31, 2006 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2006 | — | |
| Aug 1, 2006 | Aug 31, 2006 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2006 | — | |
| Aug 1, 2006 | Aug 31, 2006 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2006 | — | |
| Jan 1, 2006 | — | TT | Yes | No | — | — | — | Resolved | May 19, 2006 | — | |
| Jan 1, 2006 | — | TT | Yes | No | — | — | — | Resolved | May 19, 2006 | — | |
| Jan 1, 2006 | — | TT | Yes | No | — | — | — | Resolved | May 19, 2006 | — | |
| Jul 1, 2005 | Jul 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2005 | — | |
| Jul 1, 2005 | Jul 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2005 | — | |
| Jul 1, 2005 | Jul 31, 2005 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2005 | — | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2002 | — | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2002 | — | |
| Aug 1, 2002 | Aug 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2002 | — | |
| Jul 1, 2002 | Jul 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2002 | — | |
| Jul 1, 2002 | Jul 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2002 | — | |
| Jul 1, 2002 | Jul 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jul 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 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2001 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2001 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2001 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | — | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2001 | — | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2001 | — | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2001 | — | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2001 | — | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2001 | — | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2001 | — | |
| Jul 1, 2001 | Jul 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | Yes | — | — | — | Resolved | Jun 30, 2001 | — | |
| Jul 1, 1999 | Sep 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1999 | — | |
| Jul 1, 1999 | Sep 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1999 | — | |
| Jul 1, 1999 | Sep 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1999 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jul 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — |
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.