Ocean County, NJ
drinking water quality
666,434 residents · 211 public water systems · 29 ZIP codes
EPA sampled 29 of 211 public water systems here, together serving about 1,035,679 people. The highest reading was PFOA at 11.5 ng/L at Lakewood Twp Mua. 7 of the sampled systems were above a federal limit. Last sampled 9/6/2023.
What was found
| Compound | Highest result | Federal limit | Ratio |
|---|---|---|---|
| PFOA | 11.5 ng/L | 4 ng/L | 2.9× |
Also detected, with no federal limit set: PFPeA (33.8 ng/L), PFHxA (26.2 ng/L), 6:2 FTS (21 ng/L), PFHpA (11.8 ng/L), PFBA (11.5 ng/L), PFBS (10.6 ng/L).
Health-based violations
Separately from PFAS, EPA records 56 health-based violations across 31 of the county’s water systems since 2020, the most recent in 2025. They involved lead and copper, total coliform, contaminant 0700, E. coli, gross alpha radiation.
What this means
PFAS are industrial chemicals that EPA describes as breaking down only very slowly in the environment. In April 2024 EPA set the first enforceable national limits: 4 ng/L for PFOA and PFOS, 10 ng/L for PFHxS, PFNA and GenX.
These figures are county-level and come from EPA’s sampling of public water systems. They describe the worst result found in the county, not what comes out of any particular tap — that depends on which system serves the address, and on the plumbing in the building. A private well is not covered by this programme at all.
ZIP codes in Ocean County
08005 · 08006 · 08008 · 08050 · 08087 · 08092 · 08527 · 08533 · 08701 · 08721 · 08722 · 08723 · 08724 · 08731 · 08732 · 08733 · 08734 · 08735 · 08738 · 08740 · 08741 · 08742 · 08751 · 08752 · 08753 · 08755 · 08757 · 08758 · 08759
Readings are county-level, so every ZIP here shares the figure above. Search your ZIP on the map to see it in context.