North Carolina
Orange County drinking water quality
67 active public water systems serve 118,767 people in Orange County. 29 are compliant, 38 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
29 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Orange Water & Sewer Authority Carrboro |
86,500 | 0 | 0 | |
|
Hillsborough, Town of Hillsborough |
14,006 | 0 | 0 | |
|
Orange-Alamance Water System Efland |
9,223 | 11 | 1 | |
|
Stoneridge Master Chapel Hill |
681 | 3 | 0 | |
|
Ridgewood MHP Chapel Hill |
330 | 7 | 2 | |
|
Birchwood MHP Durham |
312 | 1 | 0 | |
|
Robin`s Wood Chapel Hill |
246 | 1 | 0 | |
|
Maple Ridge MHP Durham |
216 | 3 | 1 | |
|
Northwood S/d Chapel Hill |
208 | 0 | 0 | |
|
The Trails S/d Chapel Hill |
200 | 1 | 0 | |
|
Bingham Woods MHP Chapel Hill |
190 | 0 | 0 | |
|
Whispering Pines Durham |
183 | 0 | 0 | |
|
Orange MHP Durham |
144 | 4 | 1 | |
|
Hill Top MHP Chapel Hill |
139 | 4 | 1 | |
|
Wildcat Creek S/d Chapel Hill |
114 | 0 | 0 | |
|
Arbor Hill MHP Durham |
96 | 3 | 0 | |
|
Euglena Junction Chapel Hill |
96 | 0 | 0 | |
|
Stonegate MHP S/d Durham |
96 | 1 | 0 | |
|
Heartwood S/d Chapel Hill |
94 | 0 | 0 | |
|
Wood`s MHP Durham |
89 | 3 | 0 | |
|
South Grove Subdivision Chapel Hill |
75 | 0 | 0 | |
|
Riley`s MHP Chapel Hill |
65 | 2 | 0 | |
|
Oak Grove MHP Chapel Hill |
64 | 4 | 3 | |
|
Sturbridge Village Chapel Hill |
53 | 0 | 0 | |
|
Foxboro Estates Chapel Hill |
48 | 0 | 0 | |
|
Woodland Park Hillsborough |
41 | 6 | 1 | |
|
Carolantic Park Hillsborough |
40 | 0 | 0 | |
|
Morris Grove Heights Chapel Hill |
33 | 0 | 0 | |
|
Homestead MHP Chapel Hill |
25 | 4 | 2 |
Non-community systems (38: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (125, 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 North Carolina 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.