The Kirkwood–Cohansey and Potomac–Raritan–Magothy aquifer systems serve the New Jersey Coastal Plain; bedrock aquifers supply the north.
We're building out New Jersey coverage from the USGS national groundwater databases — the National Water Information System and the National Ground-Water Monitoring Network — which catalog groundwater sites, well depths, and water levels nationwide. Check back soon.
State groundwater agency: New Jersey DEP
Meanwhile, you can find water well drillers in New Jersey or see all covered states.