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Drinking water / UT

PFAS in Utah drinking water

129 Utah public water systems tested under UCMR5. 16 detected at least one PFAS compound; 113 detected none at the reporting thresholds. Values are the highest single result per compound, in ng/L (parts per trillion). The federal limit for PFOA and PFOS is 4 ng/L.

Water systemServesHighest results (ng/L)Reading
HILDALE - COLORADO CITY

UTAH27006

WashingtonPFOS 26 *PFHxS 22PFBS 17PFPeS 13above final limit
PARK CITY WATER SYSTEM

UTAH22011

SummitPFOS 6.7 *PFPeA 5.8PFOA 4.8 *PFBS 4.3above final limit
SALT LAKE CITY WATER SYSTEM

UTAH18026

Salt LakePFHxS 18.2PFOS 7.1 *PFPeA 6.2PFHxA 5.7above final limit
BOUNTIFUL CITY WATER SYSTEM

UTAH06015

DavisPFBS 3.7PFPeA 3detected
BRIGHAM CITY WATER SYSTEM

UTAH02004

Box ElderPFBS 4.9detected
CENTERVILLE CITY WATER SYSTEM

UTAH06001

DavisPFBS 4.3detected
FARMINGTON CITY WATER SYSTEM

UTAH06004

Davis6:2 FTS 30detected
HERRIMAN CITY MUNICIPAL WATER DEPARTMENT

UTAH18157

Salt LakePFHxA 8.5PFPeA 3.5detected
MOUNTAIN REGIONAL WATER SSD

UTAH22137

Summit6:2 FTS 55PFPeA 14PFHxA 8.1detected
MURRAY CITY WATER SYSTEM

UTAH18024

Salt LakePFPeA 8.9PFBS 7.5PFHxA 7.1PFBA 6.2detected
SOUTH DAVIS WATER DISTRICT

UTAH06009

DavisPFHxS 12PFPeA 5.6PFHxA 4.6PFBS 3.1detected
SOUTH SALT LAKE CITY WATER SYSTEM

UTAH18032

Salt LakePFBA 13detected
SYRACUSE CITY WATER SYSTEM

UTAH06012

DavisPFBA 7.4PFBS 3.6detected
WEST JORDAN CITY WATER SYSTEM

UTAH18020

Salt LakePFHxA 4.6PFPeA 4.2PFBS 3.1detected
WEST POINT CITY WATER SYSTEM

UTAH06020

DavisPFBA 15detected
Woods Cross City Water

UTAH06021

DavisPFBS 3.8detected

* exceeds the final federal MCL for that compound. Detections of compounds whose limits EPA proposed to rescind in May 2026 are shown for information.

Systems with no PFAS detected

113 tested systems reported no PFAS above the laboratory reporting limits. Each has its own page with its sampling detail.

A detection at the system level does not tell you what reaches one specific tap: levels vary by entry point, treatment train and plumbing. A certified lab test of your own tap settles it. Testing and treatment options