Open-File Report 2010–1187
Purpose and Scope
This report provides the supporting data and describes the data sources, methodologies, and assumptions used in the assessment of existing and potential water resources of the Highlands of Connecticut and Pennsylvania (referred to herein as the “Highlands”). Included in this report are Highlands groundwater and surface-water use data nd the methods of data compilation. Annual mean streamflow and annual mean base-flow estimates from selected U.S. Geological Survey (USGS) gaging stations were computed using data for the period of record through water year 2005. The methods of watershed modeling are discussed and regional and sub-regional water budgets are provided. Information on Highlands surface-water-quality trends is presented. USGS web sites are provided as sources for additional information on groundwater levels, streamflow records, and ground- and surface-water-quality data. Interpretation of these data and the findings are summarized in the Highlands study report (Connecticut–Pennsylvania Highlands Regional Study, written commun., E.A. Ahearn, 2008).
First posted August 25, 2010
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Ahearn, E.A., and Bjerklie, D.M., 2010, Connecticut Highlands Technical Report – Documentation of the Regional Rainfall-Runoff Model: U.S. Geological Survey Open-File Report 2010–1187, 42 p., at https://pubs.usgs.gov/of/2010/1187/.
SECTION 1. WATER RESOURCES
Purpose and Scope
1.1. Groundwater – Aquifers and Community Wells
1.2. Groundwater-Level Data
1.3. Surface Water - Streamflow Data and Base-Flow Estimates from Streamflow Records
Base-Flow Estimates from Streamflow Records
Additional Streamflow Data
1.4. Water Withdrawals and Water Use
Estimating Domestic Water Use
1.5. Water Quality
1.6. Watershed Budget
Model Input Data and Methods of Analysis
Changes in Water-Budget Estimates for High- and Low-Constraint Build-Out Scenarios
Model Verification and Comparison of Results
Appendix 1. Data for Documenting Information Provided in the Connecticut Highlands Technical Report – Documentation of the Regional Rainfall-Runoff Model
Appendix 2. Estimating Effective Impervious Area Using the Connecticut Effective Impervious Area (CT EIA) Equation