This document put out by the Water Research Institute at Cornell has a comprehensive list or resources as they pertain to Water Quality. This is good starting point if you are more interested in garnering an understanding of the water issues.
"This list is in no way exhaustive. Rather it attempts to provide a set of primary references that offer key pieces of information in building a clear understanding of the gas drilling issue. Thus, it is subjective in its completeness. Annotations attempt to identify unique or defining characteristics of each entry. References to popular press and advocacy groups, both of which are numerous and described in detail elsewhere, are for the most part excluded here."