MOUNTAIN WSD
Colorado - Community Water System - PWSID: CO0130100
System Information
| PWSID | CO0130100 |
| System Name | MOUNTAIN WSD |
| 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 | CONIFER |
| ZIP Code | 80433 |
| Address | 12365 HWY 285 |
| Organization | SWANSON, RICHARD |
| Phone | 303-838-1800 |
Population & Service
| Population Served | 1,941 |
| Service Connections | 399 |
Drinking Water Violations (221)
This water system has 221 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 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Oct 1, 2024 | Oct 31, 2024 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| May 1, 2024 | May 31, 2024 | TT | Yes | No | - | - | - | Resolved | May 31, 2024 | - | |
| May 1, 2024 | May 31, 2024 | TT | Yes | No | - | - | - | Resolved | May 31, 2024 | - | |
| May 1, 2024 | May 31, 2024 | TT | Yes | No | - | - | - | Resolved | May 31, 2024 | - | |
| May 1, 2024 | May 31, 2024 | TT | Yes | No | - | - | - | Resolved | May 31, 2024 | - | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2020 | - | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2020 | - | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2020 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 150 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 150 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 150 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 150 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 150 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2011 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 99 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 99 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 99 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 99 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 99 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 240 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 240 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 109 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 5 pCi/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 240 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 240 UG/L | 30 ug/L | 30 | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 109 PCI/L | 15 pCi/L | 15 | Resolved | Dec 31, 2009 | - |
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.