Tapcensus

Water quality for ZIP code 08520

ZIP 08520 covers Twin Rivers, Hightstown, and Windsor in Mercer County, New Jersey, one of 22 ZIP codes in the county. 99 active public water systems serve the county; 69 had an EPA violation in the past three years.

Most likely your provider

Hightstown Water Department NJ1104001 · Community water system · Ground water · Hightstown Boro
Serves 5,400 people Rules violated, past 3 years 0 Last sanitary survey Feb 25, 2026 Distance 1.0 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Mercer County

10 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
East Windsor Mua
East Windsor Twp
25,000 2 0.8 mi
Aqua NJ Hamilton Square
Hamilton Twp
39,128 4 6.1 mi
Lawrenceville School
Lawrence Twp
1,200 2 10.2 mi
Aqua NJ Lawrence
Lawrence Twp
8,655 3 10.9 mi
Trenton Water Works
Ewing Twp, Hamilton Twp, Hopewell Twp.1106- and 2 more
217,000 8 11.1 mi
Pennington W Dept
Pennington Boro
2,600 3 14.1 mi
Hopewell Boro W Dept
Hopewell Boro
2,035 4 14.9 mi
Washington Crossing Park Estates
Hopewell Twp.1106-
356 4 16.4 mi
Mercer County Correctional Center
Hopewell Twp.1106-
860 5 20.6 mi
Robbinsville Twp Newtown Village
Washington Twp
300 2 41.7 mi
Non-community systems in Mercer County (88: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Alliance Homes
East Windsor Twp
40 0 0
American Legion Post 148
East Windsor Twp
26 1 1
H&h Appliance Center
East Windsor Twp
30 0 0
NJ Credit Union League
East Windsor Twp
55 0 0
Ibew #827
East Windsor Twp
35 0 0
Kyle Family Farm
East Windsor Twp
54 1 1
Jewish Community Center
East Windsor Twp
55 0 0
Princeton RD Professiona
East Windsor Twp
165 0 0
Etra Lake Park
East Windsor Twp
50 1 1
Eden Autism Clayton Center
West Windsor Twp
60 8 2
East Windsor Deli
East Windsor Twp
45 0 0
2nd Pentecostal Church
East Windsor Twp
55 0 0
Practice Square Offices
East Windsor Twp
72 1 0
Princeton Windsor Office
East Windsor Twp
85 1 1
International Process Plants
West Windsor Twp
51 2 0
Goddard School West Windsor
West Windsor Twp
155 0 0
Bent Iron Brewery
Hamilton Twp
1,201 1 1
Hamilton YMCA at Sawmill Road
Hamilton Twp
498 0 0
Apple Montessori School
Lawrence Twp
35 3 1
Terhune Orchards
Lawrence Twp
1,025 1 0
Princeton Child Developmnt Ins
Lawrence Twp
110 1 0
Camelot Nursery School
Hopewell Twp.1106-
69 0 0
Rosedale Park Pump House 1
Hopewell Twp.1106-
52 2 1
Princeton Technology Ctr
Hopewell Twp.1106-
80 1 1
Mercer Professional Center @ Penn
Hopewell Twp.1106-
100 0 0
Greater Princeton Investments LLC
Hopewell Twp.1106-
25 1 0
Pennington Family Chiropractic PC
Hopewell Twp.1106-
44 2 1
Lukoil Station #57703
Hopewell Twp.1106-
55 2 2
Wilson & Apple Funeral Home
Hopewell Twp.1106-
32 0 0
Pennington Shop-Rite
Hopewell Twp.1106-
3,663 1 0
Bcj&r
Hopewell Twp.1106-
29 1 1
Pennington Cleaners
Hopewell Twp.1106-
215 1 1
Wildflowers
Hopewell Twp.1106-
362 1 1
Marcos Pizza
Hopewell Twp.1106-
104 2 1
Pennington Leasing LLC
Pennington Boro
44 1 1
Pennington Citgo #12261011
Hopewell Twp.1106-
35 0 0
The Watershed Institute
Hopewell Twp.1106-
26 2 1
The Pennington School
Pennington Boro
565 1 0
Linluks LLC
Hopewell Twp.1106-
32 0 0
Hopwell Valley Medical Center
Hopewell Twp.1106-
65 2 1
The Watershed Institute
Hopewell Twp.1106-
152 3 0
Offices at Pennington Point
Hopewell Twp.1106-
125 0 0
Tree Farm Village
Hopewell Twp.1106-
230 1 0
Zydus Pharmaceuticals
Hopewell Twp.1106-
65 3 0
Corner Stone Court
Hopewell Twp.1106-
940 1 0
Stacys Cream King
Pennington Boro
400 3 2
Pennington Montessori School
Hopewell Twp.1106-
133 1 0
Hopewell Tennis and Swim
Hopewell Twp.1106-
75 1 1
Pennington Office Park-A
Hopewell Twp.1106-
31 1 1
The Village Learning Center
Hopewell Twp.1106-
100 1 0
All non-community systems
About this data

Water systems are matched to Mercer County, the county this ZIP code lies in, nearest to the ZIP code's centre 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 or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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. Retrieved from ECHO on Oct 11, 2026.