Tapcensus

Colorado

Adams County drinking water quality

89 active public water systems serve 713,420 people in Adams County. 49 are compliant, 40 had at least one EPA violation in the past three years, 2 are designated serious violators, and 4 carry a health flag.

Active systems 89 64 community systems
People served 713K by public water systems
Systems with violations 40 45% of active systems, past 3 years
Serious violators 2 4 systems carry a health flag

Needs attention

Friendly Village of the Rockies CO0101283 · Community water system · Serves 1,046 4 rules violated in the past three years. Unresolved: Ground Water Rule, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
Galambs Mobile Home and RV Park CO0101060 · Community water system · Serves 130 6 rules violated in the past three years. Unresolved: Revised Total Coliform Rule, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
Wikiup MHP CO0101180 · Community water system · Serves 2,500 2 rules violated in the past three years. Unresolved: Ground Water Rule.
Advance MHP CO0101104 · Community water system · Serves 175 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
North Washington Wua CO0101110 · Community water system · Serves 90 6 rules violated in the past three years. Unresolved: Revised Total Coliform Rule, Ground Water Rule, Stage 1 Disinfectants and Disinfection Byproducts Rule, Lead and Copper Rule, and Public Notice Rule and Revised PN Rule.

Community water systems

64 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Estates at Bromley
 150 1 1
Crestwood Estates
 140 1 0
Commerce Heights
 130 0 0
Galambs Mobile Home and RV Park
 130 6 3
Suburban Estates MHP
Aurora 		115 1 1
North Washington Wua
 90 6 5
Third Creek Wua
 90 0 0
Tucson WC
 90 2 1
Derby Village Mobile Home Park
 81 0 0
Brighton Village LLC
 77 0 0
Hope Ditch CO
 63 1 0
Cottonwood MHP
 60 3 0
Northside Village MHP
 55 1 0
Valley Vista Estates
 51 0 0
Non-community systems (25: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Adams County Parks
 868 3 1
Barr Lake State Park
 609 0 0
Watkins Square
 515 2 0
Elmwood Baptist Academy School
 450 0 0
Mountain View Fellowship
 447 0 0
Johnson Auto Plaza
 247 0 0
Buffalo Run Golf Course
 240 1 0
Flatrock Training Center WS
 204 0 0
Wagon Wheel Skating Rink
 153 0 0
Hideaway Steakhouse
 150 0 0
Colorado Air and Space Port
 140 0 0
Copeland Enterprises, Inc.
Watkins 		104 0 0
Sunmart 525
 100 0 0
Rocky Mountain Rail Park
Watkins 		65 0 0
Riverdale Animal Shelter
 62 0 0
Lulus Inn
 57 0 0
Northglenn Moose Lodge NO2166
 55 1 1
Colorado Rifle Club
Brighton 		50 0 0
Colorado Interstate Gas Watkins
 45 0 0
Joseph T Ryerson and Son INC
 44 0 0
Petrocco Farms
 42 0 0
BP Wattenberg Gas Plant
 41 0 0
Country Manor Motel
 37 1 0
E-470 Water System Plaza D
 25 5 0
City of Aurora at Front Range Airport
 0 0 0
Inactive systems (100, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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.