Groundwater maps and reports
King County, WashingtonGroundwater published maps and figures Interactive map - groundwater
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Zoom in to view the full set of the County's map layers including groundwater sources, water quality sampling sites, critical aquifer recharge areas, areas susceptible to groundwater contaimination, well-head protection areas, groundwater management areas and aerial imagery among other things. Viewing information about individual map features may take a little practice: choose the "active" (or queryable) map layer from the layers list, select the  tool, and click on one of that layer's features to display associated data. Groundwater Management PlansGroundwater Management Plans for all five Groundwater Management Areas Annual reports - Groundwater Management Program2005 Groundwater Protection Services and Funding Report 2003 Groundwater Protection Program Report 2002 Groundwater Protection Program Report 2001 Groundwater Protection Program Report Groundwater technical reportsKing County Ambient Groundwater Monitoring Report, 2001-2004
Report of groundwater samples from across King County, providing measurements of well depth and concentrations of nitrate, arsenic, lead, and iron in well water. Cold Creek Aquifer Study
Report of surface water and groundwater interactions in the Cold Creek area of King County. East King County Groundwater Survey 2005 Report
The East King County (EKC) Groundwater Level Survey 2005 report provides water quantity data from sites monitored in 2005. Sammamish River Valley Groundwater Study 2003-2004 Data Report
Report of groundwater samples from the Sammamish River Valley, providing measurements of well depth and concentrations of metals, inorganic and organic compounds including endocrine disrupting compounds (EDCs), and microbiology in well water. Vashon-Maury Island Hydrologic Modeling Report (2401 Kb Acrobat File) This report presents the results of the Mike-SHE modeling, which included the development of a time-varying, integrated groundwater-surface water model and an assessment of the impacts of possible future pumping and climate change scenarios on water resources. Published in November 2009. Vashon-Maury Island 2009 Water Resources Data Report
This data report provides precipitation, stream gauging, water quality and water quantity data from sites monitored on Vashon-Maury Island during the water year 2009. Vashon-Maury Island 2008 Water Resources Data Report
This data report provides precipitation, stream gauging, water quality and water quantity data from sites monitored on Vashon-Maury Island during the water year 2008. Vashon-Maury Island 2007 Water Resources Data Report
This data report provides precipitation, stream gauging, water quality and water quantity data from sites monitored on Vashon-Maury Island during 2007. Vashon-Maury Island 2006 Water Resources Data Report
This data report provides precipitation, stream gauging, water quality and water quantity data from sites monitored on Vashon-Maury Island in 2006. Vashon-Maury Island 2005 Water Resources Data Report
This data report provides precipitation, stream gauging, water quality and water quantity data from sites monitored on Vashon-Maury Island in 2005. Vashon-Maury Island 2005 Well Data Report
This data report provides provides drilling activity information, well construction, water level and pumping test data from sites installed in 2005. Additional reports on Vashon-Maury Island can be found at the Vashon-Maury Island Water Resources Evaluation Project Documents webpage. Groundwater sampling and analysis plans East King County Issaquah Creek Valley Redmond-Bear Creek Creek Valley Vashon-Maury Island This page is produced by the King County Groundwater Protection Program. To learn more about this group and its responsibilities, please read about the Groundwater Protection Program.
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