Safest Drinking Water in New Jersey 2026
New Jersey has 5 public water systems serving 1,832,045 people. The safest system is Nj American Water - Western in Delran with a score of 79/100.
Top 5 Water Systems in New Jersey
| # | Water System | City | Pop. Served | Source | Violations | Score |
|---|---|---|---|---|---|---|
| 1 | Nj American Water - Western | Delran | 264,586 | Surface water | 0 | C (79) |
| 2 | Wildwood City Water Department | Rio Grande | 218,472 | Ground water | 0 | C (79) |
| 3 | Veolia Water New Jersey Hackensack | Haworth | 792,713 | Surface water | 1 | C (70) |
| 4 | Jersey City Mua | Hoboken | 262,000 | Surface water | 1 | C (70) |
| 5 | Newark Water Department | Newark | 294,274 | Surface water | 22 | F (5) |
Water quality data for New Jersey is sourced from the EPA Safe Drinking Water Information System (SDWIS), which tracks compliance for all public water systems.
Frequently Asked Questions
Nj American Water - Western in Delran has the highest Water Safety Score in New Jersey at 79/100 (Grade C), serving 264,586 people.
New Jersey has 5 public water systems serving 1,832,045 people. The average Water Safety Score is 61/100.
The Water Safety Score (0-100) is based on health violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Higher scores mean cleaner, safer water.
Water Safety Score: health violations (40%), contaminant exceedances (30%), enforcement history (20%), monitoring violations (10%).
The this entity category groups every U.S. public drinking-water safety entity sharing this attribute. The list above is the data; the paragraphs below explain what the grouping means against the broader the EPA Safe Drinking Water Information System (SDWIS) distribution and how to read the relative rankings within the category.
For readers using this category as a starting point, the per-entity detail pages linked from the table above carry the underlying the EPA Safe Drinking Water Information System (SDWIS) data in full. The category-level view is the filter; the per-entity pages are the actual answer.
Source: EPA Ground Water and Drinking Water, 2026.