County · Utah
San Juan County, Utah: drinking water records
This overview covers 8 ZIP codes and 15 community water systems in San Juan County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Blanding City UTAH19001 | 3,760 | 120 | 0 | 2 | 1.3 ppb |
| Monument Valley Utah Schools NN4900227 | 700 | 0 | 0 | 1 | 1.5 ppb |
| Monument Valley Mission - Hospital NN4900222 | 303 | 0 | 0 | 2 | 1.5 ppb |
| Aneth Community School BIA NN4932002 | 192 | 0 | 0 | 1 | 1.6 ppb |
| Rockland Ranch UTAH19077 | 175 | 0 | 0 | 2 | 0 ppb |
| Pack Creek Water Company UTAH19064 | 75 | 0 | 0 | 2 | 49 ppb |
| Mexican Hat Ssd UTAH19008 | 40 | 0 | 0 | 1 | 0.6 ppb |
| Monticello City UTAH19004 | 2,393 | 0 | 0 | 0 | 3.6 ppb |
| San Juan Spanish Valley Ssd UTAH19080 | 550 | 0 | 0 | 0 | 6.9 ppb |
| Bluff Water Works Service District UTAH19002 | 430 | 0 | 0 | 0 | 0.3 ppb |
| Gouldings Trading Post and Lodge NN4900225 | 300 | 0 | 0 | 0 | 1.3 ppb |
| Glen Canyon Nra - Halls Crossing UTAH19046 | 190 | 0 | 0 | 0 | 7.3 ppb |
| Garcia Mobile Home Park WY5601746 | 148 | 0 | 0 | 0 | 6 ppb |
| Eastland Special Service District UTAH19013 | 90 | 0 | 0 | 0 | 7.2 ppb |
| Wilson Arch Water & Sewer Ssd UTAH19069 | 37 | 0 | 0 | 0 | 0 ppb |
ZIP reports in San Juan County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 84536.
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.