During construction blasting can have an adverse impact on water supplies. Groundwater yields (including both wells and springs) are influenced by the flow of groundwater through the aquifer materials. Any disruption to these materials can potentially affect both groundwater flow and water quality. In some cases, vibrations from blasting can cause aquifer materials to collapse and compact, thereby limiting flow. In addition, bedrock fractures may be created that draw in flow from other portions of bedrock with poorer water quality, and the use of blasting agents that contain perchlorate may result in groundwater contamination.
—Wind Energy Siting Handbook, American Wind Energy Association
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