USGS Washington Water Science Center
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WA208 - Water resources of the Gig Harbor Peninsula, Pierce County - Completed FY1981
Problem - The study area includes Gig Harbor Peninsula, Fox Island, and about 13 sq. mi. of the Long Branch Peninsula. In the past, this area was essentially undeveloped, but with the advent of improved highways and a toll-free bridge it is now undergoing rapid urbanization. The Pierce County Planning Department desires a suitability analysis of the natural, physical, and social systems of the area. The hydrologic data collected by the Survey will be used in conjunction with data collected by other agencies to formulate an ecological plan.
Objectives - The objectives of this study are to appraise the ground-water resources in sufficient detail to provide information on well depths, yields, spring discharges, ground-water quality, aquifer location and characteristics, general direction of ground-water movement, locations of recharge and discharge areas, and present or potential sources of contamination, including salt-water intrusion. The study will also develop information on the availability, chemical quality, and bacteriologial quality of surface water. The study will also identify areas in which more intensive studies may be required.
Approach - All existing wells and springs will be inventoried. These data will be used to define the location and position of the various major aquifers, define the expected yield of the aquifers, and evaluate the quality of the water in these aquifers. A data collection network will be established to obtain bimonthly water-level data, quarterly water-quality samples of streams, and periodic streamflow data. These data will be used in concert with existing data to describe the low-flow characteristics of the streams in the area and their water quality. Data on the water quality and physical characteristics of the lakes will be documented. The data collected above will be presented for possible later use as a data base for more detailed local studies.