/April 2021/ *Wellhead protection areas are important for protecting the recharge area around public water supply (PWS) groundwater sources.* Download these layers [1] View in an online map [2] A Zone II is a wellhead protection area that has been...
/April 2021/ *The Public Water Supply (PWS) datalayer contains the locations of public community surface and groundwater supply sources and public non-community supply sources as defined in 310 CMR 22.00.* Request to download these data [1] (...
/April 2016/ *Please be advised: The information contained in this GIS layer is no longer current and the layer should be considered as obsolete. It was last updated by the MassDEP Bureau of Air and Waste (BAW) in 2016 and there are no formal...
/December 2020 / *A statewide point dataset containing the approximate location of oil or hazardous material release or disposal sites where an Activity and Use Limitation (AUL) has been filed.* Download this layer [1] (Shapefile, .dbf tables and...
/December 2020/ *A statewide point dataset containing the approximate location of oil and/or hazardous material disposal sites that have been (1) reported and (2) Tier Classified under M.G.L. Chapter 21E and the Massachusetts Contingency Plan (...
/December 2013/ *Photo-interpreted areas of wetland change as determined by aerial ortho imagery.* // Download this layer [1] (Shapefile and ArcGIS 10.0 LYR) /Published 9/29/2014/ [2]The MassDEP Wetlands Change layer contains polygon features...
/October 2020/ *This layer contains features mapped as part of the sixth coast-wide survey conducted by the MassDEP Eelgrass Mapping Project. This phase began in the summer of 2019 and is scheduled to continue through 2022, a 4-year duration that...
/April 2017/ *These Surface Water Supply Protection Areas delineate those areas included in 310 CMR 22.00, the Massachusetts Drinking Water Regulations, as Surface Water Supply Protection Zones* Download this layer Shapefile with ArcGIS 9.0 LYR (24...
/May 2006/ *The DEP Regions layer represents boundaries used by the Massachusetts Department of Environmental Protection for planning and administrative purposes.* Download this layer [1] The DEP Regions layer represents boundaries used by the...
*These layers depict eelgrass beds. Seagrass beds are critical wetlands components of shallow marine ecosystems along the Massachusetts coastline.* .... Overview Seagrass beds are critical wetlands components of shallow marine ecosystems along...
