Public Water Systems
2,193 active water systems in CO.
| 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 | Detected |
| 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 | Detected |
| 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 | Detected |
| 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 | Detected |
| 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 | Detected |
| STERLING CITY OF | STERLING, CO | 15,100 | 279 | Detected |
| NORTH WASHINGTON STREET WSD | DENVER, CO | 14,500 | 6 | — |
| BERTHOUD TOWN OF | BERTHOUD, CO | 14,211 | 224 | Detected |
| WOODMEN HILLS MD | FALCON, CO | 13,888 | 129 | Detected |
| MONTEZUMA WC | DOLORES, CO | 13,797 | 44 | Detected |
| ROXBOROUGH WSD | LITTLETON, CO | 13,765 | 27 | Detected |
| 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 | Detected |
| 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 | Detected |
| WELLINGTON TOWN OF | WELLINGTON, CO | 11,500 | 113 | Detected |
| 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 | Detected |
| PAGOSA AREA WSD | PAGOSA SPRINGS, CO | 11,069 | 412 | Detected |
| 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 |