Utah Water Quality
According to EPA Safe Drinking Water Information System (SDWIS), Utah has 553 active community water systems in this extract. PlainEnviro's health-based slice lists 1,172 violation records across 50 systems with at least one such row. These are historical EPA registry counts, not a statewide drinkability score.
Health-based violation records for 553 community water systems in Utah. Source: EPA Safe Drinking Water Information System (SDWIS).
Water Systems with Most Health-Based Records
| # | Water System | Health-Based Records | Health |
|---|---|---|---|
| 1 | OAK HAVEN WATER COMPANY Midway | 43 | Yes |
| 2 | CREEKWOOD PARK WATER SYSTEM Woods Cross | 42 | Yes |
| 3 | GREEN HILLS COUNTRY ESTATES Huntsville | 31 | Yes |
| 4 | BATEMANS MOSIDA FARMS Elberta | 29 | Yes |
| 5 | DUTCH JOHN TOWN WATER SYSTEM Manila | 28 | Yes |
| 6 | IRONTOWN Cedar City | 25 | Yes |
| 7 | HINCKLEY TOWN WATER SYSTEM Hinckley | 23 | Yes |
| 8 | NORTH VALLEY RANCHES SUB New Harmony | 22 | Yes |
| 9 | CANYON MEADOWS MUTUAL WATER COMPANY Provo | 20 | Yes |
| 10 | DESERET - OASIS SSD Delta | 18 | Yes |
| 11 | URIAH HEEPS SPRING WATER SYSTEM Ft. Duchesne | 14 | Yes |
| 12 | CORNISH TOWN WATER SYSTEM Cornish | 13 | Yes |
| 13 | FOOTHILL WATER USERS ASSOCIATION Cedar City | 13 | Yes |
| 14 | HI-COUNTRY ESTATES #1 Herriman | 13 | Yes |
| 15 | PALISADES WATER COMPANY Sterling | 13 | Yes |
| 16 | TOWN OF APPLE VALLEY - APPLE VALLEY Apple Valley | 13 | Yes |
| 17 | COVE WATERWORKS Cove | 12 | Yes |
| 18 | DIAMOND VALLEY ACRES St George | 11 | Yes |
| 19 | MOUNT PLEASANT CITY Mount Pleasant | 10 | Yes |
| 20 | OAK CITY WATER SYSTEM Oak City | 9 | Yes |
| 21 | KEARNS IMPROVEMENT DISTRICT Kearns | 9 | Yes |
| 22 | TWIN CREEKS SSD Payson | 9 | Yes |
| 23 | PINE VALLEY IRRIGATION CO St George | 9 | Yes |
| 24 | PRICE MUNICIPAL CORPORATION Price | 8 | Yes |
| 25 | TRAIL CYN RESIDENTS ASSN Huntington | 8 | Yes |
| 26 | LAKETOWN Laketown | 8 | Yes |
| 27 | MOUNTAIN MEADOW IMPROVEMENT DISTRICT Woodruff | 8 | Yes |
| 28 | CLUFF WARD PIPELINE CO Coalville | 8 | Yes |
| 29 | PEOA PIPELINE COMPANY Peoa | 8 | Yes |
| 30 | BRIDGE HOLLOW WATER ASSOCIATION Wanship | 8 | Yes |
| 31 | NORTH OGDEN CITY North Ogden | 8 | Yes |
| 32 | POLE PATCH WATER SYSTEM North Ogden | 8 | Yes |
| 33 | M & J TRAILER HOME COMMUNITY Sandy | 7 | Yes |
| 34 | SORREL RIVER RANCH WATER Moab | 7 | Yes |
| 35 | OLD MEADOWS WATER CO Cedar City | 7 | Yes |
| 36 | ALTON TOWN WATER SYSTEM Alton | 7 | Yes |
| 37 | DESERET LAND AND LIVESTOCK Woodruff | 7 | Yes |
| 38 | WOODLAND MUTUAL WATER CO Kamas | 7 | Yes |
| 39 | PLEASANT GROVE CITY Orem | 7 | Yes |
| 40 | HUNTSVILLE TOWN WATER SYSTEM Farr West | 7 | Yes |
| 41 | PINE RIDGE MOBILE HOME COMMUNITY Orem | 6 | Yes |
| 42 | BOTHWELL TOWN WATER SYSTEM Tremonton | 6 | Yes |
| 43 | PARADISE TOWN WATER SYSTEM Paradise | 6 | Yes |
| 44 | EAST CARBON CITY East Carbon | 6 | Yes |
| 45 | CLINTON CITY WATER SYSTEM Clinton | 6 | Yes |
| 46 | ANTIMONY TOWN WATER SYSTEM Harrisville | 6 | Yes |
| 47 | MID VALLEY ESTATES Cedar City | 6 | Yes |
| 48 | ELKRIDGE WATER COMPANY Alton | 6 | Yes |
| 49 | PETERSON PIPELINE ASSOCIATION Morgan | 6 | Yes |
| 50 | PACK CREEK WATER COMPANY Monticello | 6 | Yes |
Most Common Contaminants in Utah
| Contaminant | Violations | Systems Affected |
|---|---|---|
| Groundwater Rule | 571 | 185 |
| Revised Total Coliform Rule | 175 | 78 |
| Arsenic | 98 | 5 |
| Coliform (TCR) | 91 | 46 |
| Gross Alpha, Excl. Radon and U | 52 | 3 |
| Surface Water Treatment Rule | 46 | 14 |
| TTHM | 40 | 6 |
| Total Haloacetic Acids (HAA5) | 26 | 1 |
| Combined Radium (-226 and -228) | 17 | 4 |
| Lead and Copper Rule | 13 | 10 |
| Long Term 2 Enhanced Surface Water Treatment Rule | 13 | 7 |
| Nitrate | 10 | 4 |
| LEAD AND COPPER RULE REVISIONS | 8 | 5 |
| Interim Enhanced Surface Water Treatment Rule | 5 | 1 |
| Radium-228 | 4 | 2 |
Cities with Water Quality Issues
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About This Data
Water quality data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Only community water systems (CWS) in Utah are included.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.