The U.S. Geological Survey (USGS) has operated a network of observation wells in Massachusetts and Rhode Island for the purpose of monitoring groundwater-level changes throughout these States. Long-term, systematic measurement of water levels in observation wells provides the data needed to evaluate changes in the groundwater resource over time. Records of groundwater levels are used to evaluate recharge, groundwater discharge, seasonal fluctuations, long-term climate change, and water-supply development. Water-level data are also used to develop groundwater models and to forecast trends.

In April 2009, Massachusetts groundwater levels were measured in 227 network wells: 16 wells were equipped for continuous water-level monitoring, and 211 wells were measured manually from two to six times per year. Fifteen of the continuously monitored wells are equipped with satellite data-collection platforms that provide near-real-time data.

Rhode Isalnd groundwater levels were measured in 38 network wells in April 2009: 6 wells were equipped for continuous water-level monitoring, and 32 wells were measured manually from two to six times per year. Five of the continuously monitored wells are equipped with satellite data-collection platforms that provide near-real-time data.

Groundwater Data

• NWIS real-time water levels MA ()    RI ()
• Groundwater Watch active water level network MA ()    RI ()
• Groundwater Watch real-time groundwater level network MA ()    RI ()

Publications

• Fact sheet 090-01: Real-Time Groundwater Data for the Nation ()