County · Colorado
San Miguel County, Colorado: drinking water records
This overview covers 5 ZIP codes and 13 community water systems in San Miguel County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Telluride Town of CO0157800 | 7,900 | 240 | 0 | 10 | 1 ppb |
| Mountain Village Town of CO0157400 | 9,700 | 240 | 2 | 0 | 0 ppb |
| Ophir Town of CO0157600 | 193 | 0 | 0 | 10 | 1.5 ppb |
| San Bernardo HOA CO0157701 | 132 | 0 | 0 | 1 | 2.2 ppb |
| Last Dollar PUD CO0157300 | 96 | 0 | 0 | 1 | 11.9 ppb |
| Telluride Pines HOA CO0157900 | 25 | 0 | 0 | 8 | 0 ppb |
| Norwood Water Commission CO0157500 | 1,700 | 0 | 0 | 0 | 2 ppb |
| Four Seasons Mobile Home Park GA1130010 | 600 | 0 | 0 | 0 | 1.8 ppb |
| Aldasoro Ranch Hoc CO0157011 | 412 | 0 | 0 | 0 | 4.2 ppb |
| Ilium Valley Ws CO0157250 | 322 | 0 | 0 | 0 | 1 ppb |
| Wilson Mesa CO0157950 | 290 | 0 | 0 | 0 | 0 ppb |
| Elk Run Homeowners Corporation CO0157244 | 125 | 0 | 0 | 0 | 1 ppb |
| Sawpit Town of CO0157700 | 59 | 0 | 0 | 0 | 0 ppb |
ZIP reports in San Miguel County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.