@online {129,
	title = {The Massachusetts DEP Hydrogeologic Information Matrix},
	publisher = {MassDEP},
	abstract = {An index of all USGS geologic maps and hydrogeologic publications for Massachusetts, cross-referenced and indexed by town and 7.5{\textquoteright} quadrangle.  This is an extremely valuable resource for finding geologic data for a given site.
},
	keywords = {$\#$BedrockMaps, $\#$Hydro, $\#$MapDatabase, $\#$MapsDataPublications, $\#$QuadIndex, $\#$SurficialMaps, aquifer, catalog, data, database, GEOLOGIC MAP, ground source heat pumps, groundwater, hydrogeology, index, maps, quadrangles, water resources},
	url = {http://www.mass.gov/eea/docs/dep/water/compliance/hydromat.pdf}
}
