New Jersey Groundwater Network

Science Center Objects


Groundwater is the sole source of water supply for many people in New Jersey. Large-scale groundwater pumpage, installation of sanitary- and storm-sewer systems, and frequent variations in precipitation all have significant effects on regional groundwater levels and aquifer storage. In order to properly manage this resource, there needs to be a consistent dataset of hydrologic data available for water managers and scientist to use to assess long- and short-term changes within the aquifer system that can detrimentally affect this vital resource.

The USGS has operated a groundwater-monitoring network throughout the state of New Jersey since the early 1900’s. This network provides a consistent, long-term, region-wide hydrologic data-set for scientists to use to properly evaluate and manage the region’s water resources and environmentally sensitive habitats, and for engineers to assess local conditions in support of urban-development and resiliency projects.

Well pipe for the Sandy Hook Groundwater Synoptic

Well pipe in marshy ground in the Sandy Hook Study area

(Public domain.)

The extent and data-collection frequency of this program varies throughout the region from (1) annual-synoptic, which provides data needed for baseline statistical studies and groundwater-model calibration; (2) monthly, which in addition to the above, provides data needed for water-availability and saltwater-intrusion studies, groundwater/surface-water-interaction studies, seasonal-trend analysis, climate change and sea-level rise analysis, and drought and flood monitoring; and (3) continuous recording or real time, which provides additional data needed for short-term trend analysis, recharge and tidal-variation studies, local groundwater-withdrawal monitoring, and real-time drought and flood monitoring.


USGS National Groundwater Resources

New Jersey Department of Environmental Protection