Colorado
Arapahoe County drinking water quality
40 active public water systems serve 867,005 people in Arapahoe County. 19 are compliant, 21 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
30 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Aurora City of |
533,407 | 0 | 0 | |
|
East Cherry Creek Valley Wsd |
66,130 | 1 | 0 | |
|
Englewood City of |
59,904 | 1 | 0 | |
|
Southgate Wsd |
55,000 | 0 | 0 | |
|
Southwest Metropolitan Wsd |
48,648 | 0 | 0 | |
|
Arapahoe Cnty Wwwa |
31,000 | 0 | 0 | |
|
Platte Canyon Wsd |
19,485 | 0 | 0 | |
|
Willows WD |
19,000 | 0 | 0 | |
|
Cherry Creek Village WD |
9,215 | 0 | 0 | |
|
Inverness Wsd |
8,140 | 5 | 0 | |
|
Glendale City of Glendale |
4,400 | 1 | 0 | |
|
Rangeview MD |
2,487 | 3 | 0 | |
|
Deer Trail Town of |
1,648 | 1 | 0 | |
|
Foxridge Farms MHP |
1,440 | 4 | 0 | |
|
Byers Wsd |
1,000 | 1 | 0 | |
|
Bow Mar Wsd |
899 | 0 | 0 | |
|
Columbine Lakes HOA |
843 | 1 | 0 | |
|
The Meadows Aurora |
758 | 0 | 0 | |
|
Woodshire East Mobile Home Park Ltd |
751 | 1 | 0 | |
|
East Valley MD |
230 | 1 | 0 | |
|
Travois HOA |
175 | 3 | 1 | |
|
Stage Run HOA |
150 | 4 | 1 | |
|
Cedar Village MHP |
130 | 0 | 0 | |
|
Meadowood Village MHP |
125 | 3 | 0 | |
|
Sierra Bonita Estates |
122 | 3 | 0 | |
|
Country Gardens MHP |
115 | 6 | 2 | |
|
Country Homes Land CO |
100 | 0 | 0 | |
|
Rolling Plains Estate |
40 | 3 | 0 | |
|
Joint Water Purification Plant |
0 | 0 | 0 | |
|
Wise Project |
0 | 0 | 0 |
Non-community systems (10: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Circle K NO 4054 |
500 | 0 | 0 | |
|
Arapahoe Park Horsetrack |
482 | 0 | 0 | |
|
Lds Strasburg Strasburg |
231 | 0 | 0 | |
|
Appogee Kazmira LLC |
200 | 2 | 1 | |
|
Golden Gun Club |
57 | 0 | 0 | |
|
May Farms WS and Entertainment Center |
57 | 0 | 0 | |
|
Western Metals Recycling Englewood |
45 | 7 | 0 | |
|
Raleigh House Watkins |
35 | 2 | 0 | |
|
Eastern Service Center |
30 | 0 | 0 | |
|
Galbraith Estates |
26 | 3 | 0 |
Inactive systems (85, 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. Retrieved from ECHO on Oct 11, 2026.