Groundwater is an often misunderstood resource that provides drinking water to one quarter of New Yorkers, and half of all Americans. It can be found virtually everywhere on the planet at depths ranging from very shallow to very deep. Although bedrock formations are a significant source of groundwater supply, the most productive aquifers in New York are generally located in unconsolidated sediments (e.g., sand and/or gravel deposits).
USGS Groundwater Data for New York
The USGS National Water Information System (NWIS) contains extensive water data for the nation. The Groundwater database consists of more than 850,000 records of wells, springs, test holes, tunnels,drains, and excavations in the United States. Available site descriptive information includes well location information such as latitude and longitude, well depth, and aquifer.
The National Groundwater Association
NGWA is a community of groundwater professionals working together to advance groundwater knowledge and the success of our members through education and outreach; advocacy; cooperation and information exchange; and enhancement of professional practices.
Aquifer Overlay Zone Model
From the Pace University Land Use Law Center:
The Town of Dover aquifer overlay district ordinance regulates activities by performance standards. These standards pertain to the use of fertilizers and pesticides, wastewater treatment systems, sediment generation, and the control of other chemicals that have the potential to adversely impact aquifers.