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Shallow Unconfined Aquifers
Valley Aquifer: An unconfined aquifer of variable thickness (possibly up to 400 feet) exists throughout the main trunk of the Upper Snoqualmie valley from Snoqualmie Falls upstream along the Middle and South Forks of the Snoqualmie River. This aquifer is primarily used for local potable supply.
Upland Aquifers: Other shallow aquifers exist on uplands that commonly flank the valley floor. These uplands include the North Fork/Tokul Delta, Lake Alice Plateau, Middle and South Fork Embankments, and the Cedar Moraine. The large embankment features are up to 400 feet thick and are hydraulically linked to the valley aquifer.
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©2003-2007 Golder Associates
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