Ground-Water Data
Monthly Ground-Water Conditions
Ground-water levels were generally above normal (highest 25 percent of levels for April) in northwestern Massachusetts. Ground-water levels were generally normal (between highest and lowest 25 percent of levels for April) in the remaining areas of Massachusetts, including Cape Cod, Martha’s Vineyard, and Nantucket. Ground-water levels were also generally normal in Rhode Island, including Block Island. Please refer to the April Ground-Water Conditions map for conditions of individual wells and other information.
Data table (contains OWc values for Frimpter-Method estimation)
A new record-high ground-water level for the month of April was measured in the Orange 63 well in Massachusetts. A new record-low ground-water level for the month of April was measured in the Burrillville 396 well in Rhode Island. No other record-high or record-low ground-water levels were measured during the month of April.
This assessment is based on the evaluation of 118 wells with 10 or more years of record. The data sources for variables OWc (monthly well reading), OWmax (historical high water level for period of well record), and OWr (maximum annual range for period of well record), which are used in conjunction with USGS
Open-File Report 80-1205 to estimate high ground-water levels at sites
in Massachusetts, are identified on the Well
Characteristics Web page.
WELL MEASUREMENTS DISCONTINUED AT TRURO 1 WELL
Monthly ground-water-level measurements in the Truro 1 observation well were discontinued on July 27, 2007 after 58 years of operation (1950 to 2007). This was done because the well was located near a pumped supply well, and the record of monthly water-level changes was not indicative of seasonal and climatic changes. Water levels in the Truro 89 observation well, however, are unaffected by pumping and are indicative of seasonal and climatic changes. This well continues to be measured monthly.
GW Climate Response Network
Observation-Well Network
Well Characteristics based on data through September 30, 2007 (contains OWmax and OWr values for Frimpter-Method estimation)
Historical Monthly Statistics (includes data through September 30, 2007).
Links
Surface-Water Data
Water-Quality Data
Precipitation
Floods
Droughts
Monthly Water-Conditions Statements
Water Information and Data
USGS Water Resources Data of:
USGS Ground-Water Information Pages
Ground-Water quality data from the New England Coastal Basins National Water Quality Assessment
Historical Ground-Water Levels
The whole water-year maps on one screen:
| 2008 | 2007 | |
| 2006 | 2005 | |
| 2004 | 2003 | |
| 2002 | 2001 | |
| 2000 | 1999 |
Monthly maps:
04/1995 - current month - .gif
01/2003 - current month - .pdf
Monthly Ground-Water Level Tables (April 1995 to current month)
