by Joseph D. Ayotte and Kenneth W. Toppin
Abstract
Introduction
Purpose and scope
Previous investigations
Methods of study
Numbering system for wells and borings
Acknowledgements
Geohydrologic setting
Stratified drift
Glacial-lake deposits
Upland valley-fill deposits
Till
Bedrock
Geohydrology of stratified-drift aquifers
Delineation of aquifer boundaries
Areal extent of aquifers
Stratigraphy of geohydrologic units
Well and boring data
Seismic-refraction data
Seismic-reflection data
Altitude of the water table
Recharge, discharge, and direction of ground-water flow
Aquifer characteristics
Saturated thickness and storage
Transmissivity and hydraulic conductivity
Descriptions of selected stratified-drift aquifers
Gould Mill Brook aquifer
Smithville aquifer
Upper Stony Brook aquifer
Upper South Branch Piscataquog River aquifer
Middle Branch Piscataquog River aquifer
Upper Piscataquog River aquifer
Goffstown aquifer
Lower Piscataquog River aquifer
Upper Cohas Brook aquifer
Peters Brook aquifer
Brickyard Brook and Pinnacle Pond aquifer
South Bow aquifer
Estimation of yield for the Goffstown aquifer
Conceptual and numerical model
Model grid
Boundary conditions
Selection of input parameters
Calibration of steady-state model
Sensitivity analysis of nonstressed steady-state model
Estimate of aquifer yield
Sensitivity analysis of stressed steady-state model
Appraisal of yield estimate
Water quality
Summary and conclusions
Selected references
Glossary
Appendix A: Description of selected wells and borings in the middle Merrimack River basin, New Hampshire
Appendix B: Stratigraphic logs of selected wells and borings in the middle Merrimack River basin, New Hampshire
Appendix C: Geohydrologic sections interpreted from seismic-refraction data
Appendix D: Low-flow streamflow measurements at miscellaneous sites
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