Hydrogeology of the Tully Trough in Southern Onondaga County and Northern Cortland County, New York
NEW September 2003 Covers both Tully and the norther half of Preble
[Full Report, Acrobat PDF (4.5M)]
---
Published Aquifer Maps: "Unconsolidated Aquifers in Upstate New York 1:24,000 scale maps: Miller, T.S., Brooks, T.D., Stelz, W.G., and others, 1981, Geohydrology of the valley-fill aquifer in the Cortland-Homer-Preble area, Cortland and Onondaga Counties, New York: U.S. Geological Survey Open-File Report 81-1022, 7 sheets, scale 1:24,000."
(I suppose you get this from the USGS, but it doesn't say one way or the other on the site.)

