PlainWater

Public Water Systems

2,193 active public water systems in CO, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.

Population Violations Health Violations Name
System Name Location Population Violations PFAS
Crestview WSD Denver, CO 23,756 0 -
Windsor Town Of Windsor, CO 23,500 14 Clean
Meridian MD Englewood, CO 23,415 10 Clean
Cherry Creek Valley WSD Denver, CO 22,000 0 -
Louisville City Of Louisville, CO 20,975 149 Clean
Tri County Wcd Montrose, CO 20,490 8 Clean
Left Hand WD Niwot, CO 20,280 213 Clean
Security Water District Colorado Springs, CO 20,000 246 Detected
Wheat Ridge Water District Wheat Ridge, CO 20,000 4 -
Platte Canyon WSD Littleton, CO 19,485 0 -
Evans City Of Evans, CO 19,369 58 Clean
Montrose City Of Montrose, CO 19,305 4 Clean
Willows WD Centennial, CO 19,000 2 -
Woodmoor WSD Monument, CO 18,031 655 Detected
Superior MD No 1 Superior, CO 17,900 165 Clean
Frederick Town Of Frederick, CO 17,173 43 Clean
Mt Werner WD Steamboat Springs, CO 16,980 212 Clean
US Air Force Academy Usaf Academy, CO 16,876 77 Clean
Estes Park Town Of Estes Park, CO 16,722 22 Clean
North Weld County WD Lucerne, CO 15,890 3 Clean
Evergreen MD Evergreen, CO 15,750 36 Clean
Stonegate MD Parker, CO 15,295 283 Detected
Gypsum Town Of Gypsum, CO 15,272 147 Clean
Black Hawk City Of Black Hawk, CO 15,167 239 Clean
Sterling City Of Sterling, CO 15,100 279 Clean
North Washington Street WSD Denver, CO 14,500 6 -
Berthoud Town Of Berthoud, CO 14,211 224 Clean
Woodmen Hills MD Falcon, CO 13,888 129 Clean
Montezuma WC Dolores, CO 13,797 44 Clean
Roxborough WSD Littleton, CO 13,765 27 Clean
Pinery Wwd Parker, CO 12,901 328 Detected
Castle Pines North MD Castle Pines, CO 12,800 231 Detected
Meridian Service MD Peyton, CO 12,760 166 Clean
Ft Lupton City Of Fort Lupton, CO 12,099 328 Clean
Ken Caryl WSD Littleton, CO 12,000 0 -
Lakehurst WSD Littleton, CO 12,000 0 -
Ft Morgan City Of Fort Morgan, CO 12,000 75 Clean
Severance Town Of Severance, CO 11,733 30 Clean
Federal Heights City Of Federal Heights, CO 11,678 4 Clean
Wellington Town Of Wellington, CO 11,500 113 Clean
Trinidad City Of Trinidad, CO 11,400 384 Clean
Sterling Ranch Cab Littleton, CO 11,357 8 -
Alamosa City Of Alamosa, CO 11,271 660 Clean
Pagosa Area WSD Pagosa Springs, CO 11,069 412 Clean
Cottonwood WSD Englewood, CO 10,867 131 Detected
Idaho Springs City Of Idaho Springs, CO 10,432 125 Clean
Valley WD Wheat Ridge, CO 10,000 0 -
North Table Mountain WSD Golden, CO 10,000 10 Clean
Steamboat Springs City Of Steamboat Springs, CO 9,950 24 Clean
Snake River WD Keystone, CO 9,900 133 Detected
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