Water quality in Larkspur, Colorado
Larkspur is in Douglas County. 74 active public water systems serve the county; 39 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Douglas County
28 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Perry Park Wsd |
3,890 | 3 | 4.0 mi | |
| Consolidated Bell Mtn Ranch MD |
1,162 | 1 | 5.2 mi | |
| Castle Rock Town of |
110,298 | 1 | 9.9 mi | |
| Silver Heights Wsd |
301 | 0 | 13.4 mi | |
| Castle Pines Village MD |
5,656 | 1 | 14.7 mi | |
| Thunderbird Wsd |
490 | 1 | 14.7 mi | |
| Westcreek Lakes WD |
165 | 8 | 15.8 mi | |
| Sedalia Wsd |
215 | 1 | 16.3 mi | |
| Pinery Wwd |
12,901 | 1 | 16.9 mi | |
| Castle Pines North MD |
12,800 | 1 | 16.9 mi | |
| Beverly Hills Mutual WC |
325 | 1 | 17.0 mi | |
| Louviers Wsd |
238 | 3 | 18.3 mi | |
| Parker Wsd |
75,949 | 4 | 18.9 mi | |
| Roxborough Wsd |
13,765 | 0 | 19.0 mi | |
| Dominion Wsd Littleton |
0 | 0 | 20.0 mi | |
| Highlands Ranch Wsd |
103,444 | 0 | 20.8 mi | |
| Stonegate MD |
15,295 | 0 | 21.3 mi | |
| Meridian MD |
23,415 | 3 | 21.4 mi | |
| Northern Douglas County Wsd |
6,160 | 0 | 21.7 mi | |
| Chatfield South WD |
312 | 0 | 21.9 mi | |
| View Ridge Mutual WC |
35 | 3 | 22.1 mi | |
| Cottonwood Wsd |
10,867 | 7 | 23.1 mi | |
| Sierra Vista HOA |
120 | 0 | 23.3 mi | |
| Foxhill MD |
123 | 0 | 36.0 mi | |
| Sterling Ranch Cab |
11,501 | 2 | — |
Non-community systems in Douglas County (45: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Douglas County, nearest to Larkspur first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.