Areas Susceptible to Groundwater Contamination

King County 20050323 Areas Susceptible to Groundwater Contamination One vector digital data King County, WA King County None withheld asgwc_area Areas susceptible to groundwater contamination This dataset was created to fulfill a requirement of the Growth Management Act: analysze and protect remaining areas of high aquifer susceptibility ot groundwater contamination. The ASGWC data history: This data set represents the joining of 9 separate analyses for 9 different study areas. In most cases, surficial geology, soils and depth to groundwater were combined in a matrix to determine final susceptibility. SOURCES: Vashon - Maury Island : used new geology from U. of Wa. for PType, (WHPA's, DTW, to update ASGWC susceptibility data July 2007. New susceptibility data from U. of Wa. added for parts of Issaquah and Redmond/Bear Creek data updated Feb. 2008. Schema changes Feb. 2008, added "D_GW"; "RECHARGE" name changed to " SUSCEPT"; "RCH_SUM" changed to "SUSCP_SUM". REDMOND/BEAR CREEK GWMA - EMCON NW Date: 01/01/1992 Scale: Unknown VASHON GWMA - GERACHTY AND MILLER Date: 01/01/1993 Scale: Unknown Date: 01/01/1993 Scale: Unknown SOUTH KING GWMA - ECOMOMIC AND ENGINEERING SERVICES, INC. Date: 01/01/1991 Scale: Unknown EAST KING GWMA - US GEO. SURVEY, TACOMA Date: 01/01/1993 Scale: Unknown LOWER CEDAR S.A. - EMCON NW Date: 01/01/1993 Scale: Unknown ENUMCLAW, HWOLLYWOOD HILLS, AND S. BELLEVUE - KC STAFF(DDES) Date: 01/01/1994 Scale: Unknown MANUSCRIPTION: For all consultant work: please consult the studies. King County Staff interpreted geology, soils, and well log maps for their contribution to the process. List of steps: Interpretation - Looking at USGS Geology and SCS soils maps, they were interpreted for H-M-L as regards recharge. Interpretation - Well log data was plotted based on lat-long coords. Depth to groundwater was determined for each well. Polygons were then drawn for H-M-L D. to groundwater AUTOMATION: (King Co. Staff work only) 3 layers (GEO., soils,depth to GW) were over lanin. A matrix was used to determine resultant recharge in each resulting polygon. QUALITY ASSURANCE: March 2008, digitizing irregularities and null values have been noted by DNRP/WLRD/STS/WQQ - Hydrologic Services Group and KC GIS data steward. These irregularities will be addressed in future updates to ASGWC. The total area increased because the RBC has a greater mapped area than the previous ASGWC map extent. The ASGWC data history: This data set represents the joining of 9 separate analyses for 9 different study areas. In most cases, surficial geology, soils and depth to groundwater were combined in a matrix to determine final susceptibility. SOURCES: Vashon - Maury Island : used new geology from U. of Wa. for PType, (WHPA's, DTW, to update ASGWC susceptibility data July 2007. New susceptibility data from U. of Wa. added for parts of Issaquah and Redmond/Bear Creek data updated Feb. 2008. Schema changes Feb. 2008, added "D_GW"; "RECHARGE" name changed to " SUSCEPT"; "RCH_SUM" changed to "SUSCP_SUM". REDMOND/BEAR CREEK GWMA - EMCON NW Date: 01/01/1992 Scale: Unknown VASHON GWMA - GERACHTY AND MILLER Date: 01/01/1993 Scale: Unknown Date: 01/01/1993 Scale: Unknown SOUTH KING GWMA - ECOMOMIC AND ENGINEERING SERVICES, INC. Date: 01/01/1991 Scale: Unknown EAST KING GWMA - US GEO. SURVEY, TACOMA Date: 01/01/1993 Scale: Unknown LOWER CEDAR S.A. - EMCON NW Date: 01/01/1993 Scale: Unknown ENUMCLAW, HWOLLYWOOD HILLS, AND S. BELLEVUE - KC STAFF(DDES) Date: 01/01/1994 Scale: Unknown MANUSCRIPTION: For all consultant work: please consult the studies. King County Staff interpreted geology, soils, and well log maps for their contribution to the process. List of steps: Interpretation - Looking at USGS Geology and SCS soils maps, they were interpreted for H-M-L as regards recharge. Interpretation - Well log data was plotted based on lat-long coords. Depth to groundwater was determined for each well. Polygons were then drawn for H-M-L D. to groundwater AUTOMATION: (King Co. Staff work only) 3 layers (GEO., soils,depth to GW) were over lanin. A matrix was used to determine resultant recharge in each resulting polygon. QUALITY ASSURANCE: March 2008, digitizing irregularities and null values have been noted by DNRP/WLRD/STS/WQQ - Hydrologic Services Group and KC GIS data steward. These irregularities will be addressed in future updates to ASGWC. The total area increased because the RBC has a greater mapped area than the previous ASGWC map extent. en 20080221 publication date Complete As needed -122.541801 -121.695106 47.780938 47.147729 1220334.125000 1425999.043000 58496.036000 286077.000000 Not applicable King County, WA Pacific NW Washington state groundwater natural resources enviro None King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County. GIS Analyst mailing and physical address

201 South Jackson Street, Suite 706

Seattle WA 98104 USA 206-296-1922 Ken Rauscher King County Dept. of Natural Resources and Parks, Water and Lands Resources Division http://www5.kingcounty.gov/sdc/DataImages/asgwc.jpg JPG File JPG King County ESRI ArcCatalog 9.2.6.1500 Feature Class Areas Susceptible to Groundwater Contamination ASGWC created from ASGWC95 by adding the new Vashon data received from UW. ASGWC is a scientific data set as opposed to CARA which is a political/policy response to the scientific dataset of ASGWC95 (and other datasets as well). So they both will be kept. ASGWC Created from ASGWC95 by adding the new Vashon data received from UW. ASGWC is a scientific data set as opposed to CARA which is a political/policy response to the scientific dataset of ASGWC95 (and other datasets as well). So they both will be kept. constance carlson King County GIS Analyst 206 296-4425 Metadata imported. withheld 09070200 Metadata imported. withheld 20080221 13273800 Dataset copied. withheld 20080225 09390900 Dataset copied. withheld 20080227 09472200 Vector Simple FALSE 6005 TRUE FALSE coordinate pair 0.000250 0.000250 survey feet D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983_HARN NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601_Feet 1.000000 Explicit elevation coordinate included with horizontal coordinates Shape Feature Geometry ESRI Coordinates defining the features Shape Geometry 8 0 0 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. OBJECTID OID 4 10 0 GEOL_TYPE Geology type Qw Wetland Deposits, peat and alluvium, poorly drained and intermittently we annually Grades into unit Qyal King County Qvt Till-Compact diamict containing subrounded to well-rounded clasts, glacially transported and deposited. Includes minor stratified fluvial deposits. Generally forms an undulating surface a few meters to a few tens of meters thick. In ice-marginal areas and where covered by thin layer of recessional outwash, contact with recessional-outwash or ice-contact deposits (Qvr or Qvi) is gradational. King County Qvrl Silt-dominated lowland lacustrine depositis King County Qvr Recessional outwash deposits. Stratified sand and gravel, moderately to well sorted, and well-bedded silty sand to silty clay deposited in proglacial and ice-marginal environments. King County Qvlc King County Qvi Ice-contact deposits King County Qva Advance outwash deposits King County Qpogf King County Qpog King County Qpof coarse-grained deposits -Sedimentary deposits of pre-Olympia interglaciation age (Pleistocene) King County Qpft King County Qpdc King County Qos King County Qoal King County Qf Alluvial fan depositis (Holocene) King County Qb Beach deposits (Holocene)-Loose sand deposited by wave action King County Qal King County af King County King County GEOL_TYPE String 10 0 0 POT_G 1 character code for the susceptibility as defined by geology type (High, Medium & Low) H High as defined by geology type M Medium as defined by geology type L Low as defined by geology type King County POT_G String 1 0 0 POT_G_CD number code for the POT_G code (High = 2.0, Medium = 1.00, Low = 0.00) 2.00 High = 2.00 King County 1.00 Medium = 1.00 King County 0.00 Low = 0.00 King County King County POT_G_CD Single 4 5 2 GW_DEPTH Depth of Groundwater (in feet) H High is <25' King County M Medium is in between High and Low King County L Low is >75' King County King County GW_DEPTH Double 8 19 11 POT_D 1 character code for the susceptiblity as defined by depth to groundwater (High, Medium & Low) H High = 2.00 King County M Medium = 1.00 King County L Low = 0.00 King County King County POT_D String 1 0 0 asgwc_area Polygon attribute table ESRI Feature Class 6005 POT_D_CD Number code for the POT_D code (Hight = 2.00, Medium = 1.00 or Low = 0.00) 2.00 High = 2.00 King County 1.00 Medium = 1.00 King County 0.00 Low = 0.00 King County King County POT_D_CD Single 4 5 2 POT_S 1 character code for the susceptiblilty as defined by soil type (High, Medium or Low). H High = 2.00 King County M Medium = 1.00 King County L Low = 0.00 King County King County POT_S String 1 0 0 POT_S_CD POT_S_CD Single 4 5 2 Number code for the POT_S code (Hight = 2.00, Medium = 1.00 or Low = 0.00) King County 2.00 High = 2.00 King County 1.00 Medium = 1.00 King County 0.00 Low = 0.00 King County D_GW D_GW String 10 0 0 Range of Ground Water depth. King County SUSCP_SUM SUSCP_SUM Single 4 5 2 The total of adding of the three susceptibility categories as follow: POT_G + POT_D + (0.25 * POT_S). The possible range of values for this field is 0.00 to 4.50. King County SUSCEPT SUSCEPT String 1 0 0 1 character code for the total susceptibility as defined by SUSCP_SUM (High, Medium or Low) King County Shape.STArea() Shape.STArea() Double 0 0 0 Shape.STLength() Shape.STLength() Double 0 0 0 Cheryl Wilder KCGIS Center Data Sales Coordinator mailing and physical address

201 S Jackson St, Suite 700

Seattle WA 98104 USA 206-263-5220 /plibrary2/enviro/shapes/polygon/asgwc.shp King County disclaims any warranty of use of any digital product or data beyond that for which it was designed. ESRI Shapefile 0.178 withheld Yes CD or DVD Read-only media, if offline Contact KCGIS Client Services for the cost of reproduction - http://www.kingcounty.gov/operations/GIS/ClientServices.aspx 20081226 King County Dept. of Natural Resources & Parks Ken Rauscher GIS Analyst mailing and physical address

201 South Jackson Street, Suite 706

Seattle WA 98104 USA 206-296-1922 firstname.lastname@kingcounty.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time en 20250220 11261200 20080227 09472200 FALSE 20250220 11261200 asgwc_area 002 1220334.125000 1425999.043000 58496.036000 286077.000000 1 Projected GCS_North_American_1983_HARN Linear Unit: Foot_US (0.304801) NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS["NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601_Feet",GEOGCS["GCS_North_American_1983_HARN",DATUM["D_North_American_1983_HARN",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1640416.666666667],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-120.8333333333333],PARAMETER["Standard_Parallel_1",47.5],PARAMETER["Standard_Parallel_2",48.73333333333333],PARAMETER["Latitude_Of_Origin",47.0],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2926]]</WKT><XOrigin>-117104300</XOrigin><YOrigin>-99539600</YOrigin><XYScale>4000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.002</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>2926</WKID><LatestWKID>2926</LatestWKID></ProjectedCoordinateSystem> {EDC4CBE7-76D6-4EEF-87F7-0B8E4EAF9D79} 1.0 FGDC 150000000 5000 Ken Rauscher King County Dept. of Natural Resources & Parks Senior GIS Analyst 206-296-1922 201 South Jackson Street, Suite 706 Seattle WA 98104 US firstname.lastname@kingcounty.gov ArcGIS Metadata 1.0 Cheryl Wilder KCGIS Center Data Sales Coordinator 206-263-5220 201 S Jackson St, Suite 700 Seattle WA 98104 US Contact KCGIS Client Services for the cost of reproduction - http://www.kingcounty.gov/operations/GIS/ClientServices.aspx ESRI Shapefile withheld /plibrary2/enviro/shapes/polygon/asgwc.shp Enterprise Geodatabase Feature Class http://www5.kingcounty.gov/gisdataportal/Default.aspx Areas Susceptible to Groundwater Contamination 2005-03-23 One King County King County King County, WA None For more information about this layer please see the <a href='https://www5.kingcounty.gov/sdc?Layer=ASGWC_AREA' rel='nofollow ugc'>GIS Data Catalog</a>. Areas susceptible to groundwater contamination This dataset was created to fulfill a requirement of the Growth Management Act: analysze and protect remaining areas of high aquifer susceptibility ot groundwater contamination. King County Ken Rauscher King County Dept. of Natural Resources and Parks, Water and Lands Resources Division Senior GIS Analyst 206-296-1922 201 South Jackson Street, Suite 706 Seattle WA 98104 US http://www5.kingcounty.gov/sdc/DataImages/asgwc.jpg JPG File JPG Not applicable Pacific NW Washington state King County WA Not applicable groundwater natural resources enviro groundwaternatural resourcesenviroPacific NWWashington stateKing CountyWAASGWC_AREA (202)_AREA King County disclaims any warranty of use of any digital product or data beyond that for which it was designed. <a target='_blank' href='https://kingcounty.gov/en/dept/kcit/data-information-services/gis-center/about/terms-conditions-copyrights' style='border-width: 0px; border-style: solid; border-color: currentcolor; --tw-shadow: 0 0 #0000; --tw-ring-inset: ; --tw-ring-offset-width: 0px; --tw-ring-offset-color: #fff; --tw-ring-color: rgb(59 130 246 / 0.5); --tw-ring-offset-shadow: 0 0 #0000; --tw-ring-shadow: 0 0 #0000; --container-full-height: calc(100vh - 1rem); --container-max-height: 100vh; --dialog-max-height: 90vh; --tw-border-spacing-x: 0; --tw-border-spacing-y: 0; --tw-translate-x: 0; --tw-translate-y: 0; --tw-rotate: 0; --tw-skew-x: 0; --tw-skew-y: 0; --tw-scale-x: 1; --tw-scale-y: 1; --tw-pan-x: ; --tw-pan-y: ; --tw-pinch-zoom: ; --tw-scroll-snap-strictness: proximity; --tw-gradient-from-position: ; --tw-gradient-via-position: ; --tw-gradient-to-position: ; --tw-ordinal: ; --tw-slashed-zero: ; --tw-numeric-figure: ; --tw-numeric-spacing: ; --tw-numeric-fraction: ; --tw-shadow-colored: 0 0 #0000; --tw-blur: ; --tw-brightness: ; --tw-contrast: ; --tw-grayscale: ; --tw-hue-rotate: ; --tw-invert: ; --tw-saturate: ; --tw-sepia: ; --tw-drop-shadow: ; --tw-backdrop-blur: ; --tw-backdrop-brightness: ; --tw-backdrop-contrast: ; --tw-backdrop-grayscale: ; --tw-backdrop-hue-rotate: ; --tw-backdrop-invert: ; --tw-backdrop-opacity: ; --tw-backdrop-saturate: ; --tw-backdrop-sepia: ; --tw-contain-size: ; --tw-contain-layout: ; --tw-contain-paint: ; --tw-contain-style: ; color: rgb(24, 112, 137); font-family: Cabin, "Avenir Next"; line-height: 1.5;' rel='nofollow ugc noopener noreferrer'>https://kingcounty.gov/en/dept/kcit/data-information-services/gis-center/about/terms-conditions-copyrights</a> Areas Susceptible to Groundwater Contamination publication date 2008-02-21T00:00:00 The ASGWC data history: This data set represents the joining of 9 separate analyses for 9 different study areas. In most cases, surficial geology, soils and depth to groundwater were combined in a matrix to determine final susceptibility. SOURCES: Vashon - Maury Island : used new geology from U. of Wa. for PType, (WHPA's, DTW, to update ASGWC susceptibility data July 2007. New susceptibility data from U. of Wa. added for parts of Issaquah and Redmond/Bear Creek data updated Feb. 2008. Schema changes Feb. 2008, added "D_GW"; "RECHARGE" name changed to " SUSCEPT"; "RCH_SUM" changed to "SUSCP_SUM". REDMOND/BEAR CREEK GWMA - EMCON NW Date: 01/01/1992 Scale: Unknown VASHON GWMA - GERACHTY AND MILLER Date: 01/01/1993 Scale: Unknown Date: 01/01/1993 Scale: Unknown SOUTH KING GWMA - ECOMOMIC AND ENGINEERING SERVICES, INC. Date: 01/01/1991 Scale: Unknown EAST KING GWMA - US GEO. SURVEY, TACOMA Date: 01/01/1993 Scale: Unknown LOWER CEDAR S.A. - EMCON NW Date: 01/01/1993 Scale: Unknown ENUMCLAW, HWOLLYWOOD HILLS, AND S. BELLEVUE - KC STAFF(DDES) Date: 01/01/1994 Scale: Unknown MANUSCRIPTION: For all consultant work: please consult the studies. King County Staff interpreted geology, soils, and well log maps for their contribution to the process. List of steps: Interpretation - Looking at USGS Geology and SCS soils maps, they were interpreted for H-M-L as regards recharge. Interpretation - Well log data was plotted based on lat-long coords. Depth to groundwater was determined for each well. Polygons were then drawn for H-M-L D. to groundwater AUTOMATION: (King Co. Staff work only) 3 layers (GEO., soils,depth to GW) were over lanin. A matrix was used to determine resultant recharge in each resulting polygon. QUALITY ASSURANCE: March 2008, digitizing irregularities and null values have been noted by DNRP/WLRD/STS/WQQ - Hydrologic Services Group and KC GIS data steward. These irregularities will be addressed in future updates to ASGWC. The total area increased because the RBC has a greater mapped area than the previous ASGWC map extent. The ASGWC data history: This data set represents the joining of 9 separate analyses for 9 different study areas. In most cases, surficial geology, soils and depth to groundwater were combined in a matrix to determine final susceptibility. SOURCES: Vashon - Maury Island : used new geology from U. of Wa. for PType, (WHPA's, DTW, to update ASGWC susceptibility data July 2007. New susceptibility data from U. of Wa. added for parts of Issaquah and Redmond/Bear Creek data updated Feb. 2008. Schema changes Feb. 2008, added "D_GW"; "RECHARGE" name changed to " SUSCEPT"; "RCH_SUM" changed to "SUSCP_SUM". REDMOND/BEAR CREEK GWMA - EMCON NW Date: 01/01/1992 Scale: Unknown VASHON GWMA - GERACHTY AND MILLER Date: 01/01/1993 Scale: Unknown Date: 01/01/1993 Scale: Unknown SOUTH KING GWMA - ECOMOMIC AND ENGINEERING SERVICES, INC. Date: 01/01/1991 Scale: Unknown EAST KING GWMA - US GEO. SURVEY, TACOMA Date: 01/01/1993 Scale: Unknown LOWER CEDAR S.A. - EMCON NW Date: 01/01/1993 Scale: Unknown ENUMCLAW, HWOLLYWOOD HILLS, AND S. BELLEVUE - KC STAFF(DDES) Date: 01/01/1994 Scale: Unknown MANUSCRIPTION: For all consultant work: please consult the studies. King County Staff interpreted geology, soils, and well log maps for their contribution to the process. List of steps: Interpretation - Looking at USGS Geology and SCS soils maps, they were interpreted for H-M-L as regards recharge. Interpretation - Well log data was plotted based on lat-long coords. Depth to groundwater was determined for each well. Polygons were then drawn for H-M-L D. to groundwater AUTOMATION: (King Co. Staff work only) 3 layers (GEO., soils,depth to GW) were over lanin. A matrix was used to determine resultant recharge in each resulting polygon. QUALITY ASSURANCE: March 2008, digitizing irregularities and null values have been noted by DNRP/WLRD/STS/WQQ - Hydrologic Services Group and KC GIS data steward. These irregularities will be addressed in future updates to ASGWC. The total area increased because the RBC has a greater mapped area than the previous ASGWC map extent. Esri ArcGIS 13.3.2.52636 1 -122.541801 -121.695106 47.780938 47.147729 2008-02-27T00:00:00 ASGWC Created from ASGWC95 by adding the new Vashon data received from UW. ASGWC is a scientific data set as opposed to CARA which is a political/policy response to the scientific dataset of ASGWC95 (and other datasets as well). So they both will be kept. constance carlson King County GIS Analyst 206 296-4425 ASGWC created from ASGWC95 by adding the new Vashon data received from UW. ASGWC is a scientific data set as opposed to CARA which is a political/policy response to the scientific dataset of ASGWC95 (and other datasets as well). So they both will be kept. dataset EPSG 6.3(9.0.0) 6005 20250220