Tapcensus

All water systems in Colorado

2,218 systems

SystemServesStatusRules violated, 3 yrUnresolved
Morrison Town of
Jefferson County 		9,887 2 0
Mountain Village Town of
San Miguel County 		9,700 3 0
ST Charles Mesa WD
Pueblo County 		9,690 1 0
Gunnison City of
Gunnison County 		9,610 0 0
Rifle City of
Garfield County 		9,489 2 0
Glenwood Springs City of
Garfield County 		9,428 0 0
Willowbrook Wsd
Jefferson County 		9,348 0 0
Cherry Creek Village WD
Arapahoe County 		9,215 0 0
Milliken Town of
Weld County 		9,200 2 0
Craig City of
Moffat County 		8,930 3 0
Cortez City of
Montezuma County 		8,770 0 0
Delta City of
Delta County 		8,700 1 0
Woodland Park City of
Teller County 		8,500 3 0
Silverthorne Town of
Summit County 		8,400 2 0
LA Junta City of
Otero County 		8,320 0 0
Inverness Wsd
Arapahoe County 		8,140 5 0
Morgan County Quality WD
Morgan County 		8,116 0 0
Telluride Town of
San Miguel County 		7,900 6 0
Central Weld Cnty WD
Weld County 		7,662 0 0
Vail Assoc Midvail Eagle
Eagle County 		7,600 3 0
Eagle Town of
Eagle County 		7,511 1 0
Florence City of
Fremont County 		7,500 4 0
Lamar City of
Prowers County 		7,500 0 0
Parkville WD
Lake County 		7,500 2 0
Todd Creek Village MD
Adams County 		7,363 0 0
Eaton Town of
Weld County 		7,328 3 0
Manitou Springs City of
El Paso County 		6,938 1 0
Dacono City of
Weld County 		6,900 1 0
Carbondale Town of
Garfield County 		6,700 3 0
Winter Park Wsd
Grand County 		6,635 0 0
Lochbuie Town of
Weld County 		6,518 0 0
Steamboat Ski Corp Thunderhead
Routt County 		6,517 2 0
Stratmoor Hills Wsd
El Paso County 		6,500 6 0
Donala Wsd
El Paso County 		6,421 0 0
Snowmass Village Wsd
Pitkin County 		6,353 4 2
Northern Douglas County Wsd
Douglas County 		6,160 0 0
Lakewood City of
Jefferson County 		6,000 0 0
Copper Mountain Consolidated MD
Summit County 		5,785 0 0
Monument Town of
El Paso County 		5,740 1 0
Triview MD
El Paso County 		5,737 0 0
Salida City of
Chaffee County 		5,666 4 0
Castle Pines Village MD
Douglas County 		5,656 1 0
Grand County Water NO 1
Grand County 		5,400 11 0
Georgetown Town of
Clear Creek County 		5,315 2 0
Edgewater City of
Jefferson County 		5,300 1 1
Csu South Campus
Fort Collins · Larimer County 		5,164 2 0
Brush City of
Morgan County 		5,122 1 0
Limon Town of
Lincoln County 		5,080 2 1
New Castle Town of
Garfield County 		5,024 0 0
Winter Park Resort Sunspot
Grand County 		5,006 1 0
About this data

Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.