Water quality in East Rocky Hill, New Jersey
East Rocky Hill is in Somerset County. 93 active public water systems serve the county; 51 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 Somerset County
4 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Rocky Hill W Dept Rocky Hill Boro |
687 | 1 | 1.4 mi | |
| South Brunswick Twp W DI Franklin Twp, South Brunswick Twp |
45,450 | 2 | 5.3 mi | |
| NJ American Water Twin Lakes Bernardsville Boro |
250 | 0 | 20.2 mi | |
| NJ American Water Short Hills Bedminster Twp, Belvidere Town, Berkeley Heights Twp and 26 more |
217,230 | 1 | 22.8 mi |
Non-community systems in Somerset County (88: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Griggstown Reformed Church Franklin Twp |
31 | 0 | 0 | |
|
Griggstown Volunteer Fire Company Franklin Twp |
40 | 2 | 1 | |
|
Bunker Hill Lutheran Church Franklin Twp |
39 | 0 | 0 | |
|
Alchemy Mind & Body Franklin Twp |
60 | 1 | 1 | |
|
Bunker Hill Golf Course Franklin Twp |
196 | 0 | 0 | |
|
Blawenburg Bistro Montgomery Twp |
108 | 0 | 0 | |
|
Princeton Elks 2129 Montgomery Twp |
90 | 2 | 1 | |
|
Mill Pond Park Montgomery Twp |
50 | 2 | 0 | |
|
Montgomery Medical Associates Montgomery Twp |
50 | 0 | 0 | |
|
Waldorf School of Princeton Montgomery Twp |
300 | 3 | 1 | |
|
Mother of God Church Montgomery Twp |
70 | 0 | 0 | |
|
Longships Complex Hillsborough Twp |
158 | 1 | 0 | |
|
MC Knight Field Montgomery Twp |
100 | 1 | 0 | |
|
Princeton Mont Soc INC Montgomery Twp |
355 | 0 | 0 | |
|
Arsha Bodha Center Franklin Twp |
202 | 0 | 0 | |
|
Elbereth LLC the Long House Franklin Twp |
355 | 1 | 0 | |
|
Elbereth LLC Kitchen Franklin Twp |
355 | 1 | 0 | |
|
Elbereth LLC School Franklin Twp |
355 | 1 | 0 | |
|
Princeton English Congregation Montgomery Twp |
200 | 1 | 1 | |
|
Petrocks Bar & Grille Hillsborough Twp |
122 | 0 | 0 | |
|
Roycefield Swim Club Hillsborough Twp |
120 | 2 | 0 | |
|
First Student Hillsborough Twp |
55 | 0 | 0 | |
|
Middlebush Village Shopping Square Franklin Twp |
60 | 0 | 0 | |
|
Franklin Mall Franklin Twp |
59 | 2 | 1 | |
|
Corner Cafe and Grill Franklin Twp |
207 | 0 | 0 | |
|
Apple Montessori School-Hillsborough Hillsborough Twp |
70 | 2 | 0 | |
|
Camp Agnes Dewitt Hillsborough Twp |
142 | 1 | 1 | |
|
Dewitt Cabin and Pool Hillsborough Twp |
142 | 1 | 1 | |
|
Tabatchnick Fine Foods Franklin Twp |
30 | 1 | 0 | |
|
Ama Pizza Hillsborough Twp |
85 | 1 | 1 | |
|
Riverside Inn Branchburg Twp |
59 | 0 | 0 | |
|
Cedar Hill Club INC Franklin Twp |
95 | 1 | 1 | |
|
Branchburg Library Branchburg Twp |
40 | 0 | 0 | |
|
LA Strada Cafe Branchburg Twp |
58 | 0 | 0 | |
|
Neshanic Valley Maintenance Branchburg Twp |
31 | 1 | 1 | |
|
Hillsborough Board of Education Hillsborough Twp |
540 | 2 | 2 | |
|
Mark E Singley Park Hillsborough Twp |
200 | 1 | 1 | |
|
Duke Farms Foundation Hillsborough Twp |
45 | 0 | 0 | |
|
Neshanic Valley Golf Course Branchburg Twp |
90 | 1 | 0 | |
|
Humble House Complex Hillsborough Twp |
107 | 0 | 0 | |
|
Duke Island Park Bridgewater Twp |
1,506 | 0 | 0 | |
|
South Branch Reformed CH Hillsborough Twp |
107 | 0 | 0 | |
|
SO Bound Brook Little League Franklin Twp |
100 | 2 | 0 | |
|
Our Little Schoolhouse Franklin Twp |
68 | 1 | 0 | |
|
Obriens Tavern Franklin Twp |
108 | 0 | 0 | |
|
Lepp Park Somerville Boro |
25 | 3 | 2 | |
|
Apples & Books Learning Center Branchburg Twp |
90 | 1 | 0 | |
|
Fraternal Order of Eagles Bridgewater Twp |
200 | 1 | 1 | |
|
Fraternal Order of Eagle Bridgewater Twp |
31 | 0 | 0 | |
|
South Branch Family Practice Branchburg Twp |
67 | 2 | 2 |
About this data
Water systems are matched to Somerset County, nearest to East Rocky Hill 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 county subdivision files or 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 New Jersey 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.