Water Quality in Iselin, NJ (08512)
EPA violation data for public water systems serving ZIP code 08512.
Active Health Violations
7 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 97% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
12,928
Population
55
Water Systems
133
Violations (5yr)
7
Health-Based
Location
Loading map...
Water Systems Serving This Area (55)
Middlesex Water Company
All resolvedTrenton Water Works
3 health-basedOld Bridge Mua
New Brunswick W Dept
All resolvedPerth Amboy Water Department
1 health-basedEast Brunswick Water Utility
1 health-basedSouth Brunswick Twp W Di
1 health-basedSayreville W Dept
All resolvedAqua Nj - Hamilton Square
Nj Turnpike Authority
Cranbury W Dept
Matrix Development Group
Carterwallace-Pharmaceut
Carter Wallace
Carter Wallace Pharm. We
St Davids Episcopal Church
All resolvedDataram Corp
Cities Service Research
Cranbury Station
Holiday Inn
Roche Medical Electronics
Tonys Diner
Cranbury Animal Hospital
1 health-basedCranbury Swim Club
Cranbury Buick Gmc
Prologis 66 Station Road
Firestone
Rhone Poulenc
Green Gables Inn
Rhone Poulenc
Cranbury Golf Club
Union Valley Inn
Ncr Corp
Frog Hollow Country Day School
Showplace Farms Llc (Office Well#1)
Showplace Farms
Valvoline Instant Oil Change
All resolvedGreen Gables
East Windsor Deli
All resolvedUnion Valley Restaurant
Creative Playthings Div Ofcbsi
American Cabinetry
M Battis T/A G School
Cranbury Service Center
Conoco Gas
B & Y Texaco
St Marys Prim Bapt Chch
Princeton Nassau Pediatr
Applegate Trucking & Warehouse
Stow Comany
Carter Wallace-Wampole D
Sunnyfield Nursing Home
Orchardside Farms
Holly House Rest Home
Metro Self Storage
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Annual water quality report delivery requirement.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Iselin (08512) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 133.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.