EAST DILLON WD
Colorado — Community Water System — PWSID: CO0159045
System Information
| PWSID | CO0159045 |
| System Name | EAST DILLON WD |
| 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 | Nov 17, 2025 |
Location & Contact
| State | Colorado |
| City | DILLON |
| ZIP Code | 80435 |
| Address | 0058 GREY FOX LN |
| Organization | OBERHEIDE, THOMAS C |
| Phone | 970-468-6256 |
Population & Service
| Population Served | 2,501 |
| Service Connections | 1,515 |
Drinking Water Violations (7)
This water system has 7 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, 2023 | Sep 30, 2023 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 | Sep 30, 2023 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 | Sep 30, 2023 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2023 | Sep 30, 2023 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2021 | Oct 31, 2021 | E. COLI | MR | No | Yes | — | — | — | Resolved | Oct 31, 2021 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Oct 1, 2021 | Oct 31, 2021 | E. COLI | MR | No | Yes | — | — | — | Resolved | Oct 31, 2021 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Oct 1, 2021 | Oct 31, 2021 | Surface Water Treatment Rule | MR | No | Yes | — | — | — | Resolved | Oct 31, 2021 | Surface Water Treatment Rule |
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.