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Overview
In order to
successfully subdivide a five acre lot in West Dover, Vermont,
the owner had to provide proof that the proposed bedrock wells could provide
sufficient yield without unacceptable interference on neighboring water
supply wells. Lincoln Applied Geology, Inc. (LAG) designed an investigative
plan in accordance with the Vermont Water Supply Rule (WSR) that successfully
tested the existing well source and indicated that the well could supply the
necessary yield for the project without unacceptable interference in
neighboring water supplies.
Hydro-Geologic
Evaluation Plan
The evaluation
plan included the following:
- Fracture trace analysis to identify suitable locations for
bedrock wells
- Installation of bedrock monitoring wells which would later be
used as water supply wells
- Step-draw down testing of the existing well to determine an
appropriate test pumping rate
- 72-hour constant rate pumping test on the existing drilled
bedrock well
- Collection of interference monitoring data from other local
wells and determination of acceptable/unacceptable interference
- Collection, analysis and interpretation of water quality samples
at the conclusion of the pumping test
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