NJ · 21 COUNTIES
Certified labs and testing options for private well owners in New Jersey.
Private well owners in New Jersey are responsible for the safety of their own water. Based on groundwater data across the state — particularly Chloride and pH — we recommend the following testing approach.
Tap Score offers certified mail-in testing with results in 5–7 business days, tailored to regional contaminant patterns.
Order a Tap Score Well Water Test →Looking for a state-certified lab? Find certified labs in New Jersey via EPA →
Based on New Jersey groundwater data, the most commonly detected contaminants in private wells are:
Water quality varies significantly by county. Find your county → for a targeted testing recommendation based on local data.