Mabee, S. B., Boutt, D. F. & Petsch, S. T. Carbon Sequestration: Developing an assessment of potential CO2 storage resources in Massachusetts - Final Report: Estimate of CO2 Storage Resource Potential in Massachusetts Saline Aquifers and Unmineable Coal Seams. 62 (Massachusetts Geological Survey, 2011). at <http://www.geo.umass.edu/stategeologist/Products/reports/CarbonSequestrationReport.pdf>