Systems with a yearly average at or above an EPA-based study benchmark
1.7%2 of 120 active community water systems
All 120 systems had enough required samples to calculate a yearly average. 2 had at least one yearly average at or above a study benchmark; 118 did not.
EPA-based study benchmark: the unrounded cutoff this research uses to reproduce EPA’s January 2026 technical-assistance classification around the April 2024 federal levels. It is not a current standard or compliance finding and cannot determine household exposure or health risk.
Check your area
Find your water system
ZIP codes are used only to route visitors to public water systems that reported serving them. Confirm the actual provider using a water bill or utility record.
Compound summary
System counts in Utah
Each count shows how many included water systems had a yearly average at or above the named study benchmark.
| Study benchmark | Systems at or above benchmark | Water systems included | Percent |
|---|---|---|---|
| PFOA: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt) | 1 | 120 | 0.8% |
| PFOS: 4.05 ppt study benchmark (reproduces EPA classification around 4 ppt) | 2 | 120 | 1.7% |
| PFHxS: 15 ppt study benchmark (reproduces EPA classification around 10 ppt) | 1 | 120 | 0.8% |
| PFNA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt) | 0 | 120 | 0.0% |
| HFPO-DA: 15 ppt study benchmark (reproduces EPA classification around 10 ppt) | 0 | 120 | 0.0% |
| Hazard Index: 1.5 study benchmark with at least two detected components (reproduces EPA classification around 1) | 1 | 120 | 0.8% |
System directory
Community water systems with complete monitoring
“Complete monitoring” means at least one sampling location had all required samples needed for a yearly average. Each PWSID appears once, preventing double counting across ZIP associations.
| Public water system | PWSID | Population served | Primary source | Sampling locations | Study benchmark result |
|---|---|---|---|---|---|
| ALPINE CITY | UTAH25007 | 10,200 | Ground water | 1 | Below all study benchmarks |
| ALTA TOWN WATER SYSTEM | UTAH18049 | 5,228 | Ground water | 1 | Below all study benchmarks |
| AMERICAN FORK CITY | UTAH25008 | 39,045 | Ground water | 6 | Below all study benchmarks |
| ASHLEY VALLEY WATER AND SEWER ID | UTAH24013 | 13,835 | Surface water | 2 | Below all study benchmarks |
| BLANDING CITY | UTAH19001 | 3,760 | Surface water | 1 | Below all study benchmarks |
| BLUFFDALE WATER SYSTEM | UTAH18004 | 20,000 | Surface water purchased | 1 | Below all study benchmarks |
| BONA VISTA WATER DISTRICT | UTAH29004 | 29,000 | Surface water purchased | 3 | Below all study benchmarks |
| BOUNTIFUL CITY WATER SYSTEM | UTAH06015 | 37,500 | Surface water | 10 | Below all study benchmarks |
| BOYER HILL MILITARY HOUSING | UTAH06048 | 3,300 | Surface water purchased | 1 | Below all study benchmarks |
| BRIGHAM CITY WATER SYSTEM | UTAH02004 | 20,540 | Ground water | 8 | Below all study benchmarks |
| CEDAR CITY WATERWORKS | UTAH11002 | 39,670 | Groundwater under influence of surface water | 5 | Below all study benchmarks |
| CEDAR HILLS TOWN WATER SYSTEM | UTAH25137 | 10,015 | Ground water | 3 | Below all study benchmarks |
| CENTERVILLE CITY WATER SYSTEM | UTAH06001 | 17,155 | Surface water purchased | 7 | Below all study benchmarks |
| CLINTON CITY WATER SYSTEM | UTAH06003 | 23,000 | Surface water purchased | 1 | Below all study benchmarks |
| CORINNE CITY | UTAH02005 | 740 | Ground water | 1 | Below all study benchmarks |
| DELTA CITY | UTAH14001 | 3,436 | Ground water | 3 | Below all study benchmarks |
| DRAPER CITY WATER SYSTEM | UTAH18133 | 23,205 | Surface water purchased | 1 | Below all study benchmarks |
| EAGLE MOUNTAIN CITY | UTAH25142 | 61,266 | Surface water purchased | 5 | Below all study benchmarks |
| EAST CARBON CITY | UTAH04012 | 1,460 | Surface water | 1 | Below all study benchmarks |
| ELK RIDGE TOWN | UTAH25031 | 5,510 | Ground water | 3 | Below all study benchmarks |
| ENOCH CITY WATER SYSTEM | UTAH11004 | 6,500 | Ground water | 6 | Below all study benchmarks |
| EPHRAIM CITY | UTAH20011 | 7,000 | Ground water | 5 | Below all study benchmarks |
| FARMINGTON CITY WATER SYSTEM | UTAH06004 | 27,860 | Surface water purchased | 5 | Below all study benchmarks |
| FRUIT HEIGHTS CITY WATER SYSTEM | UTAH06017 | 6,075 | Surface water purchased | 1 | Below all study benchmarks |
| GORGOZA MUTUAL WATER CO | UTAH22030 | 4,305 | Ground water | 3 | Below all study benchmarks |
| GRAND WATER AND SEWER AGENCY | UTAH10023 | 4,099 | Ground water | 4 | Below all study benchmarks |
| GRANGER-HUNTER IMPROVEMENT DISTRICT | UTAH18007 | 121,083 | Surface water purchased | 8 | Below all study benchmarks |
| GRANTSVILLE CITY | UTAH23002 | 16,284 | Ground water | 5 | Below all study benchmarks |
| GUNLOCK SPECIAL SERVICE DISTRICT | UTAH27005 | 118 | Ground water | 1 | Below all study benchmarks |
| GUNNISON CITY | UTAH20004 | 3,509 | Ground water | 3 | Below all study benchmarks |
| HEBER CITY WATER SYSTEM | UTAH26006 | 19,000 | Ground water | 3 | Below all study benchmarks |
| HERRIMAN CITY MUNICIPAL WATER DEPARTMENT | UTAH18157 | 60,000 | Surface water purchased | 4 | Below all study benchmarks |
| HIGHLAND CITY | UTAH25014 | 22,000 | Ground water | 5 | Below all study benchmarks |
| HILDALE - COLORADO CITY | UTAH27006 | 6,100 | Ground water | 2 | At or above a study benchmark |
| HILL AIR FORCE BASE | UTAH06024 | 25,625 | Surface water purchased | 5 | Below all study benchmarks |
| HOLLIDAY WATER COMPANY | UTAH18010 | 15,000 | Surface water purchased | 6 | Below all study benchmarks |
| HOOPER WATER IMPROVEMENT DISTRICT | UTAH29006 | 20,820 | Ground water | 3 | Below all study benchmarks |
| HURRICANE CITY | UTAH27007 | 25,555 | Surface water purchased | 3 | Below all study benchmarks |
| HYDE PARK CITY WATER SYSTEM | UTAH03007 | 5,200 | Ground water | 2 | Below all study benchmarks |
| HYRUM CITY | UTAH03008 | 10,891 | Ground water | 3 | Below all study benchmarks |
| IVINS | UTAH27008 | 10,465 | Surface water purchased | 4 | Below all study benchmarks |
| JORDAN VALLEY WCD | UTAH18027 | 99,335 | Surface water | 13 | Below all study benchmarks |
| JORDANELLE SSD | UTAH26086 | 2,345 | Surface water | 1 | Below all study benchmarks |
| KANAB CITY | UTAH13005 | 4,985 | Ground water | 2 | Below all study benchmarks |
| KAYSVILLE CITY WATER SYSTEM | UTAH06006 | 32,976 | Surface water purchased | 1 | Below all study benchmarks |
| KEARNS IMPROVEMENT DISTRICT | UTAH18011 | 56,700 | Surface water purchased | 5 | Below all study benchmarks |
| LA VERKIN CITY WATER SYSTEM | UTAH27009 | 4,500 | Ground water | 2 | Below all study benchmarks |
| LAYTON CITY WATER SYSTEM | UTAH06018 | 82,000 | Surface water purchased | 5 | Below all study benchmarks |
| LEHI CITY | UTAH25015 | 93,446 | Surface water purchased | 7 | Below all study benchmarks |
| LINDON CITY | UTAH25016 | 11,900 | Ground water | 5 | Below all study benchmarks |
| LOGAN CITY WATER SYSTEM | UTAH03010 | 55,540 | Ground water | 5 | Below all study benchmarks |
| MAESER IMPROVEMENT DISTRICT | UTAH24004 | 4,152 | Surface water purchased | 2 | Below all study benchmarks |
| MAGNA WATER DISTRICT | UTAH18014 | 32,100 | Surface water purchased | 2 | Below all study benchmarks |
| MANTI CITY | UTAH20005 | 3,429 | Groundwater under influence of surface water | 1 | Below all study benchmarks |
| MAPLETON CITY | UTAH25018 | 14,000 | Ground water | 1 | Below all study benchmarks |
| MIDVALE CITY WATER SYSTEM | UTAH18017 | 33,005 | Surface water purchased | 3 | Below all study benchmarks |
| MIDWAY CITY WATER SYSTEM | UTAH26008 | 7,055 | Ground water | 4 | Below all study benchmarks |
| MOAB CITY | UTAH10003 | 9,000 | Ground water | 3 | Below all study benchmarks |
| MORGAN CITY WATER SYSTEM | UTAH15008 | 4,520 | Ground water | 5 | Below all study benchmarks |
| MOUNT PLEASANT CITY | UTAH20007 | 4,040 | Groundwater under influence of surface water | 4 | Below all study benchmarks |
| MOUNTAIN REGIONAL WATER SSD | UTAH22137 | 8,245 | Surface water | 6 | Below all study benchmarks |
| MURRAY CITY WATER SYSTEM | UTAH18024 | 38,723 | Ground water | 19 | Below all study benchmarks |
| NEPHI CITY | UTAH12003 | 7,122 | Ground water | 2 | Below all study benchmarks |
| NORTH LOGAN CITY | UTAH03015 | 8,500 | Surface water | 3 | Below all study benchmarks |
| NORTH OGDEN CITY | UTAH29010 | 22,000 | Ground water | 3 | Below all study benchmarks |
| NORTH SALT LAKE CITY WATER SYSTEM | UTAH06019 | 18,655 | Surface water purchased | 5 | Below all study benchmarks |
| OGDEN CITY WATER SYSTEM | UTAH29011 | 87,267 | Surface water | 4 | Below all study benchmarks |
| OREM CITY WATER SYSTEM | UTAH25020 | 98,129 | Surface water purchased | 7 | Below all study benchmarks |
| PARK CITY WATER SYSTEM | UTAH22011 | 8,875 | Surface water | 5 | At or above a study benchmark |
| PAYSON CITY WATER SYSTEM | UTAH25021 | 19,000 | Ground water | 2 | Below all study benchmarks |
| PERRY CITY | UTAH02019 | 6,570 | Ground water | 4 | Below all study benchmarks |
| PLEASANT GROVE CITY | UTAH25022 | 40,000 | Ground water | 4 | Below all study benchmarks |
| PLEASANT VIEW CULINARY WATER | UTAH29014 | 9,250 | Ground water | 3 | Below all study benchmarks |
| PRICE MUNICIPAL CORPORATION | UTAH04007 | 8,867 | Surface water | 2 | Below all study benchmarks |
| PRICE RIVER WID | UTAH04020 | 5,790 | Surface water | 1 | Below all study benchmarks |
| PROVIDENCE CITY WATER SYSTEM | UTAH03017 | 9,690 | Ground water | 2 | Below all study benchmarks |
| PROVO CITY | UTAH25006 | 116,288 | Surface water purchased | 3 | Below all study benchmarks |
| RICHFIELD CITY | UTAH21013 | 8,360 | Ground water | 2 | Below all study benchmarks |
| RIVERDALE CITY WATER SYSTEM | UTAH29015 | 8,945 | Surface water purchased | 1 | Below all study benchmarks |
| RIVERTON CITY WATER SYSTEM | UTAH18025 | 45,600 | Surface water purchased | 1 | Below all study benchmarks |
| ROOSEVELT CITY WATER SYSTEM | UTAH07004 | 8,000 | Surface water purchased | 2 | Below all study benchmarks |
| ROY CITY WATER SYSTEM | UTAH29016 | 38,800 | Surface water purchased | 5 | Below all study benchmarks |
| SALEM CITY | UTAH25001 | 9,298 | Ground water | 3 | Below all study benchmarks |
| SALT LAKE CITY WATER SYSTEM | UTAH18026 | 383,612 | Surface water | 22 | Below all study benchmarks |
| SANDY CITY WATER SYSTEM | UTAH18028 | 99,750 | Surface water purchased | 8 | Below all study benchmarks |
| SANTA CLARA CITY | UTAH27016 | 9,000 | Surface water purchased | 1 | Below all study benchmarks |
| SANTAQUIN CITY | UTAH25002 | 17,532 | Ground water | 4 | Below all study benchmarks |
| SARATOGA SPRINGS CITY, UT | UTAH25138 | 68,000 | Surface water purchased | 5 | Below all study benchmarks |
| SL COUNTY SERVICE AREA NO 3 - SNOWBIRD | UTAH18031 | 5,110 | Ground water | 2 | Below all study benchmarks |
| SMITHFIELD CITY | UTAH03020 | 10,223 | Ground water | 1 | Below all study benchmarks |
| SOUTH DAVIS WATER DISTRICT | UTAH06009 | 10,565 | Surface water purchased | 5 | Below all study benchmarks |
| SOUTH JORDAN CITY | UTAH18023 | 89,704 | Surface water purchased | 2 | Below all study benchmarks |
| SOUTH OGDEN CITY WATER SYSTEM | UTAH29017 | 17,500 | Surface water purchased | 1 | Below all study benchmarks |
| SOUTH SALT LAKE CITY WATER SYSTEM | UTAH18032 | 23,600 | Surface water purchased | 4 | Below all study benchmarks |
| SOUTH WEBER WATER SYSTEM | UTAH06010 | 8,125 | Surface water purchased | 2 | Below all study benchmarks |
| SPANISH FORK CITY | UTAH25003 | 47,169 | Ground water | 5 | Below all study benchmarks |
| SPRINGVILLE CITY | UTAH25005 | 35,516 | Ground water | 10 | Below all study benchmarks |
| ST GEORGE CITY WATER SYSTEM | UTAH27015 | 105,240 | Surface water purchased | 8 | Below all study benchmarks |
| STANSBURY PARK IMPROVEMENT DISTRICT | UTAH23003 | 9,839 | Ground water | 5 | Below all study benchmarks |
| SUMMIT WATER DISTRIBUTION COMPANY | UTAH22059 | 6,000 | Surface water purchased | 10 | Below all study benchmarks |
| SUNSET CITY WATER SYSTEM | UTAH06011 | 5,300 | Surface water purchased | 1 | Below all study benchmarks |
| SYRACUSE CITY WATER SYSTEM | UTAH06012 | 35,561 | Surface water purchased | 1 | Below all study benchmarks |
| TAYLOR-WEST WEBER WID | UTAH29019 | 9,900 | Surface water purchased | 4 | Below all study benchmarks |
| TAYLORSVILLE-BENNION ID | UTAH18021 | 67,098 | Surface water purchased | 6 | Below all study benchmarks |
| TOOELE CITY WATER SYSTEM | UTAH23004 | 37,100 | Ground water | 13 | Below all study benchmarks |
| TREMONTON CITY | UTAH02011 | 13,000 | Ground water | 2 | Below all study benchmarks |
| UNIVERSITY OF UTAH | UTAH18057 | 57,080 | Surface water purchased | 1 | Below all study benchmarks |
| URIAH HEEPS SPRING WATER SYSTEM | 084990002 | 3,750 | Ground water | 1 | Below all study benchmarks |
| VERNAL CITY WATER SYSTEM | UTAH24012 | 10,000 | Surface water purchased | 1 | Below all study benchmarks |
| VINEYARD CITY | UTAH25168 | 21,431 | Surface water purchased | 2 | Below all study benchmarks |
| VIRGIN | UTAH27020 | 1,512 | Ground water purchased | 1 | Below all study benchmarks |
| WASHINGTON CITY | UTAH27021 | 45,865 | Surface water | 2 | Below all study benchmarks |
| WASHINGTON COUNTY WCD - COTTAM | UTAH27071 | 130 | Ground water | 1 | Below all study benchmarks |
| WASHINGTON TERRACE CITY WATER SYSTEM | UTAH29022 | 9,260 | Surface water purchased | 1 | Below all study benchmarks |
| WATERPRO INC | UTAH18006 | 33,100 | Surface water | 5 | Below all study benchmarks |
| WEST BOUNTIFUL CITY WATER SYSTEM | UTAH06014 | 5,600 | Surface water purchased | 2 | Below all study benchmarks |
| WEST HAVEN SSD | UTAH29120 | 3,360 | Ground water purchased | 1 | Below all study benchmarks |
| WEST JORDAN CITY WATER SYSTEM | UTAH18020 | 117,025 | Surface water purchased | 5 | Below all study benchmarks |
| WHITE CITY WID | UTAH18019 | 15,800 | Ground water | 2 | Below all study benchmarks |
| Woods Cross City Water | UTAH06021 | 13,110 | Surface water purchased | 2 | Below all study benchmarks |
How the count works
What is included
Each active community water system with enough required samples for a yearly average is counted once, even if it is linked with several ZIP codes. This does not mean every home was tested. Private wells are excluded, and UCMR 5 did not comprehensively monitor every small system. This page does not apply Utah's state-specific standards or determine compliance. Use the official state or territory drinking-water program for current regulatory information.