Water quality in Lake Dallas, Texas
Lake Dallas is in Denton County. 93 active public water systems serve the county; 68 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 Denton County
81 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Harbor Grove WSC |
405 | 2 | 1.9 mi | |
| Rocky Point Water System |
168 | 4 | 2.1 mi | |
| Rocky Point Community |
384 | 2 | 2.1 mi | |
| Spanish Oaks Addition |
111 | 1 | 2.4 mi | |
| Town of Lakewood Village |
795 | 4 | 2.8 mi | |
| City of Corinth |
23,213 | 1 | 2.8 mi | |
| City of Highland Village |
16,500 | 2 | 3.5 mi | |
| Hidden Valley Water System |
186 | 4 | 3.5 mi | |
| Hilltown Addition |
2,439 | 4 | 3.7 mi | |
| Vacation Village |
1,122 | 2 | 4.9 mi | |
| Old Alton Water |
69 | 5 | 5.1 mi | |
| Knob Hill Water System Denton |
234 | 6 | 5.3 mi | |
| Wynnwood Haven Estates |
459 | 0 | 5.4 mi | |
| Saratoga Estates |
483 | 2 | 5.5 mi | |
| Denton County Fwsd 7 |
12,837 | 2 | 6.1 mi | |
| City of Hackberry |
9,593 | 3 | 6.2 mi | |
| City of Lewisville |
140,880 | 1 | 6.3 mi | |
| Cross Timbers WSC |
8,751 | 4 | 6.5 mi | |
| Town of Little Elm |
43,348 | 2 | 6.5 mi | |
| Mullins Mobile Home Park |
87 | 10 | 6.7 mi | |
| Boyd Acres Water System |
72 | 3 | 7.0 mi | |
| City of the Colony |
45,367 | 0 | 7.7 mi | |
| Town of Providence Village |
7,128 | 0 | 8.1 mi | |
| Town of Flower Mound |
80,000 | 1 | 8.2 mi | |
| Argyle WSC |
12,720 | 4 | 9.0 mi |
Non-community systems in Denton County (11: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Camp Copass |
800 | 1 | 1 | |
|
Northshore Club |
72 | 1 | 0 | |
|
Iaa Fort Worth North |
176 | 5 | 2 | |
|
Oldcastle Northlake Plant |
60 | 3 | 0 | |
|
Ventura Luxury RV Community |
255 | 0 | 0 | |
|
Als Convenience 5 |
100 | 1 | 0 | |
|
Countryside RV Resort |
188 | 0 | 0 | |
|
The Campsite RV Park |
447 | 1 | 1 | |
|
Tpwd Ray Roberts Lake Isle Dubois |
4,056 | 2 | 1 | |
|
Hidden Cove Park |
264 | 2 | 1 | |
|
Northlake Acres |
33 | 0 | 0 |
About this data
Water systems are matched to Denton County, nearest to Lake Dallas 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.
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 Texas 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.