Hydrogeology of the Tully Lakes Area in Southern Onondaga and Northern Cortland Counties, New York

Water-Resources Investigations Report 2001-4166
Prepared in cooperation with Onondaga Lake Cleanup Corporation
By: , and 



Water levels in a series of kettlehole lakes and ponds known as the Tully Lakes respond to seasonal water-level changes in the surrounding aquifer but often differ from ground-water levels in the aquifer because the lakebed sediments are poorly permeable and inhibit the exchange of water. Three sets of ground-water-level measurements were made from the spring recharge period of 2000 through the fall of that year. Seasonal ground-water-level declines ranged from 1.5 to 8 feet. Average annual water-level fluctuations in the three western lakes ranged from 2.5 to 6 feet, whereas those in the two eastern lakes were only about 1.5 feet because these lakes have natural outlets. The ground-water divide between the St. Lawrence and Susquehanna River Basins did not coincide with the surface-water divide and the ground-water divide moved southerly in response to lower water levels in the aquifer during the summer and fall.

Suggested Citation

Kappel, W.M., Miller, T.S., and Hetcher, K.K., 2001, Hydrogeology of the Tully Lakes area in southern Onondaga and northern Cortland Counties, New York: U.S. Geological Survey Water-Resources Investigations Report 2001-4166, 15 p.

Study Area

Table of Contents

  • Introduction
    • Previous hydrologic studies
    • Hydrologic Study of the Tully Lakes, 1998-2000
    • Lake-Level Fluctuations
      • Western Lakes and Ponds
      • Eastern Lakes
    • Historic Water-level Fluctuations
    • Ground-water levels in the Surficial Aquifer
      • Location of ground-water divide and seasonal water-level decline
      • Surface-water/ground-water interaction
    • Summary
    • References
Publication type Report
Publication Subtype USGS Numbered Series
Title Hydrogeology of the Tully Lakes area in southern Onondaga and northern Cortland Counties, New York
Series title Water-Resources Investigations Report
Series number 2001-4166
DOI 10.3133/wri014166
Year Published 2001
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) New York Water Science Center
Description 16 p.
Country United States
State New York
County Cortland County, Onondaga County
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details