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1. MassGIS 2000 Areas of Critical Environmental Concern (July 2000)

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2000. MassGIS (Office : Mass.). The Areas of Critical Environmental Concern (ACEC) datalayer shows the location of areas that have been designated ACECs by the Secretary of Enviro... Office of Geographic and Environmental Information (MassGIS).

4. MassGIS 2000 EPA Designated Sole Source Aquifers (May 1996)

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1996. Massachusetts. Executive Office of Environmental Affairs. The Sole Source Aquifer datalayer was compiled by the Department of Environmental Protection (DEP) Division of Water Supply (DWS). Seven Sole Sour... Office of Geographic and Environmental Information (MassGIS).

5. MassGIS 2000 Massachusetts Aquifers (Polygons) (March 1997)

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1997. Massachusetts. Executive Office of Environmental Affairs. MassGIS produced an aquifer datalayer composed of 20 individual panels, generally based on the boundaries of the major drainage basins. Areas of h... Office of Geographic and Environmental Information (MassGIS).

7. MassGIS 2000 Massachusetts Senate Legislative Districts (1993)

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1997. MassGIS (Office : Mass.). The Massachusetts State Senate Legislative Districts (1993) datalayer reflects the State Senate district boundaries as defined by Chapter 274 of th... Office of Geographic and Environmental Information (MassGIS).
1997. Massachusetts. Dept. of Environmental Management. The datalayer contains the majority of the facilities currently regulated under DEP's solid waste regulations (310 CMR 16.00 19.00). The 579 poly... Office of Geographic and Environmental Information (MassGIS).

9. MassGIS 2000 Massachusetts Town Boundaries (March 1991)

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1991. MassGIS (Office : Mass.). The political boundary datalayer is a 1:25,000 scale datalayer containing the boundaries of the 351 communities in Massachusetts. The seaward bound... Office of Geographic and Environmental Information (MassGIS).