Water quality in Knollwood, Texas
Knollwood is in Grayson County. 50 active public water systems serve the county; 41 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 Grayson County
39 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| 3-D Mobile Home and RV Park |
90 | 1 | 2.4 mi | |
| City of Sherman |
43,645 | 2 | 4.1 mi | |
| City of Denison |
27,500 | 3 | 5.4 mi | |
| Starr WSC |
3,100 | 1 | 6.0 mi | |
| City of Southmayd Westview Subdivision |
738 | 3 | 6.1 mi | |
| City of Pottsboro |
2,874 | 0 | 7.2 mi | |
| City of Southmayd |
489 | 4 | 7.7 mi | |
| Pink Hill WSC |
2,835 | 1 | 7.8 mi | |
| Thompson Heights Water System |
414 | 4 | 8.5 mi | |
| Oak Ridge South Gale WSC |
3,153 | 2 | 8.6 mi | |
| Northern Hills Water Service |
264 | 2 | 8.7 mi | |
| Heritage Estates |
138 | 6 | 9.3 mi | |
| Munson Point Property Owners Association |
87 | 2 | 10.0 mi | |
| Luella SUD |
4,200 | 0 | 10.4 mi | |
| Tanglewood on Texoma |
4,341 | 0 | 10.6 mi | |
| Greater Texoma Utility Authority |
0 | 0 | 10.7 mi | |
| Texoma Estates WSC |
216 | 1 | 10.9 mi | |
| Rocky Point Estates |
441 | 2 | 11.2 mi | |
| Rra Preston Shores Water System |
2,277 | 2 | 11.3 mi | |
| American Legion Mia Post 231 |
141 | 6 | 11.8 mi | |
| City of Dorchester |
1,696 | 1 | 12.2 mi | |
| City of Bells |
2,101 | 4 | 12.8 mi | |
| City of Howe |
4,548 | 3 | 13.0 mi | |
| Ridgecrest Water System |
1,968 | 2 | 13.1 mi | |
| City of Sadler |
483 | 0 | 13.3 mi |
Non-community systems in Grayson County (10: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Georgetown Baptist Church |
400 | 4 | 1 | |
|
Franks Restaurant |
315 | 2 | 0 | |
|
Twu Water Hauler Pottsboro |
25 | 1 | 0 | |
|
Highport Marina & Resort |
1,000 | 4 | 2 | |
|
Flowing Wells Resort |
174 | 2 | 1 | |
|
Grandpappy Point Marina |
1,027 | 4 | 0 | |
|
Texins Lake Texoma Club |
744 | 0 | 0 | |
|
Texoma Marina and Resort |
180 | 3 | 2 | |
|
Sheppard Afb Recreational Annex |
253 | 0 | 0 | |
|
Big Mineral Camp Resort |
300 | 0 | 0 |
About this data
Water systems are matched to Grayson County, nearest to Knollwood 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.