Apr 15, 2026 · 7 min read
PFAS "Forever Chemicals" in US Drinking Water: 2026 Update
PFAS contamination affects an estimated 200 million Americans. Here's what the latest EPA enforcement means for your tap water.
Wyoming Tap Water Quality
121 cities · 536,219 people served · 354 EPA violations (last 5 years)
Cities Map (112 of 121 with coordinates)
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Pin locations from ZIP-code centroids · click a pin for details
All Cities in Wyoming
CHEYENNE4 violations
C
CASPER8 violations
D
GILLETTE6 violations
D
LARAMIE0 violations
A
ROCK SPRINGS1 violation
B
JACKSON9 violations
D
SHERIDAN3 violations
C
CODY1 violation
B
YELLOWSTONE13 violations
F
EVANSTON3 violations
C
GREEN RIVER0 violations
A
RIVERTON5 violations
C
RAWLINS5 violations
C
LANDER1 violation
B
TORRINGTON31 violations
F
DOUGLAS0 violations
A
WORLAND0 violations
A
POWELL0 violations
A
MOOSE0 violations
A
F.E. WARREN AFB0 violations
A
WILSON5 violations
C
NEWCASTLE1 violation
B
BUFFALO12 violations
F
MILLS8 violations
D
BAR NUNN0 violations
A
THERMOPOLIS1 violation
B
WHEATLAND4 violations
C
GREYBULL0 violations
A
KEMMERER29 violations
F
GROVER7 violations
D
MOUNTAIN VIEW1 violation
B
YELLOWSTONE NATIONAL PARK0 violations
A
LOVELL0 violations
A
WRIGHT0 violations
A
PINEDALE0 violations
A
GLENROCK1 violation
B
AFTON6 violations
D
LYMAN0 violations
A
STAR VALLEY RANCH1 violation
B
LITTLE AMERICA0 violations
A
DUBOIS1 violation
B
SARATOGA1 violation
B
ALPINE0 violations
A
FARMINGTON HILLS0 violations
A
LUSK0 violations
A
BASIN2 violations
B
RANCHESTER0 violations
A
PAVILLION8 violations
D
SUNDANCE0 violations
A
FORT COLLINS12 violations
F
LITTLETON1 violation
B
BEAR RIVER0 violations
A
GUERNSEY0 violations
A
UPTON0 violations
A
BURNS0 violations
A
MOORCROFT1 violation
B
TETON VILLAGE0 violations
A
MARBLETON1 violation
B
HANNA0 violations
A
COWLEY0 violations
A
DAYTON0 violations
A
BEDFORD2 violations
B
SMOOT0 violations
A
BYRON0 violations
A
ENCAMPMENT0 violations
A
COKEVILLE14 violations
F
SHOSHONI0 violations
A
WAMSUTTER0 violations
A
LINGLE0 violations
A
ETNA0 violations
A
HUDSON0 violations
A
ROLLING HILLS0 violations
A
LA GRANGE0 violations
A
BIG PINEY0 violations
A
SINCLAIR0 violations
A
HULETT0 violations
A
MIDWEST0 violations
A
THAYNE2 violations
B
BAGGS29 violations
F
TEN SLEEP0 violations
A
CEDAREDGE2 violations
B
MEETEETSE2 violations
B
BURLINGTON2 violations
B
LA BARGE4 violations
C
SUPERIOR2 violations
B
GLENDO0 violations
A
KAYCEE0 violations
A
EAST THERMOPOLIS0 violations
A
OSAGE1 violation
B
FORT LARAMIE0 violations
A
ROCK RIVER0 violations
A
CHUGWATER1 violation
B
EDGERTON0 violations
A
ELK MOUNTAIN1 violation
B
MEDICINE BOW0 violations
A
ALBIN2 violations
B
DEAVER0 violations
A
FRANNIE0 violations
A
AMERICAN FORK0 violations
A
CLEARMONT0 violations
A
GRANGER5 violations
C
YODER0 violations
A
EVANSVILLE0 violations
A
SHELL0 violations
A
DIXON56 violations
F
DALLAS6 violations
D
MANVILLE0 violations
A
AUBURN0 violations
A
POINT OF ROCKS1 violation
B
BAIROIL1 violation
B
HYATTVILLE0 violations
A
OPAL0 violations
A
HARTVILLE0 violations
A
WASILLA0 violations
A
JAMESTOWN1 violation
B
SIOUX FALLS2 violations
B
MORAN0 violations
A
LANCE CREEK23 violations
F
FAIRVIEW0 violations
A
KIRBY0 violations
A
JEFFREY CITY2 violations
B
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