Areas Susceptible to Groundwater Contamination

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: King County
Publication_Date: 20050323
Title: Areas Susceptible to Groundwater Contamination
Edition: One
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: King County, WA
Publisher: King County
Other_Citation_Details: None
Online_Linkage: <http://www5.kingcounty.gov/gisdataportal/Default.aspx>
Description:
Abstract: Areas susceptible to groundwater contamination
Purpose:
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.
Supplemental_Information:
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.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20080221
Single_Date/Time:
Calendar_Date: 20080227
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.541801
East_Bounding_Coordinate: -121.695106
North_Bounding_Coordinate: 47.780938
South_Bounding_Coordinate: 47.147729
Keywords:
Theme:
Theme_Keyword_Thesaurus: Not applicable
Theme_Keyword: groundwater
Theme_Keyword: natural resources
Theme_Keyword: enviro
Place:
Place_Keyword_Thesaurus: Not applicable
Place_Keyword: Pacific NW
Place_Keyword: Washington state
Place_Keyword: King County
Place_Keyword: WA
Access_Constraints: None
Use_Constraints:
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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
King County Dept. of Natural Resources and Parks, Water and Lands Resources Division
Contact_Person: Ken Rauscher
Contact_Position: Senior GIS Analyst
Contact_Address:
Address_Type: mailing and physical
Address: 201 South Jackson Street, Suite 706
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: US
Contact_Voice_Telephone: 206-296-1922
Browse_Graphic:
Browse_Graphic_File_Name: <http://www5.kingcounty.gov/sdc/DataImages/asgwc.jpg>
Browse_Graphic_File_Description: JPG File
Browse_Graphic_File_Type: JPG
Data_Set_Credit: King County
Native_Data_Set_Environment:
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600
Cross_Reference:
Citation_Information:
Title: Areas Susceptible to Groundwater Contamination

Data_Quality_Information:
Lineage:
Source_Information:
Type_of_Source_Media: None
Source_Contribution:
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.
Process_Step:
Process_Description:
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.
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: King County
Contact_Person: constance carlson
Contact_Position: GIS Analyst
Contact_Voice_Telephone: 206 296-4425

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 0

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 HARN StatePlane Washington North FIPS 4601 Feet
Lambert_Conformal_Conic:
Standard_Parallel: 47.5
Standard_Parallel: 48.73333333333333
Longitude_of_Central_Meridian: -120.8333333333333
Latitude_of_Projection_Origin: 47.0
False_Easting: 1640416.666666667
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00025
Ordinate_Resolution: 0.00025
Planar_Distance_Units: foot_us
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983 HARN
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: PLIBRARY.ENVIRO.xxxx880288
Entity_Type_Definition: Polygon attribute table
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature Geometry
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: GEOL_TYPE
Attribute_Definition: Geology type
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qw
Enumerated_Domain_Value_Definition:
Wetland Deposits, peat and alluvium, poorly drained and intermittently we annually Grades into unit Qyal
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qvt
Enumerated_Domain_Value_Definition:
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.
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qvrl
Enumerated_Domain_Value_Definition: Silt-dominated lowland lacustrine depositis
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qvr
Enumerated_Domain_Value_Definition:
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.
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qvlc
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qvi
Enumerated_Domain_Value_Definition: Ice-contact deposits
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qva
Enumerated_Domain_Value_Definition: Advance outwash deposits
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qpogf
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qpog
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qpof
Enumerated_Domain_Value_Definition:
coarse-grained deposits -Sedimentary deposits of pre-Olympia interglaciation age (Pleistocene)
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qpft
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qpdc
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qos
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qoal
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qf
Enumerated_Domain_Value_Definition: Alluvial fan depositis (Holocene)
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qb
Enumerated_Domain_Value_Definition: Beach deposits (Holocene)-Loose sand deposited by wave action
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Qal
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: af
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: POT_G
Attribute_Definition:
1 character code for the susceptibility as defined by geology type (High, Medium & Low)
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: High as defined by geology type
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Medium as defined by geology type
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition: Low as defined by geology type
Attribute:
Attribute_Label: POT_G_CD
Attribute_Definition:
number code for the POT_G code (High = 2.0, Medium = 1.00, Low = 0.00)
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2.00
Enumerated_Domain_Value_Definition: High = 2.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 1.00
Enumerated_Domain_Value_Definition: Medium = 1.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 0.00
Enumerated_Domain_Value_Definition: Low = 0.00
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: GW_DEPTH
Attribute_Definition: Depth of Groundwater (in feet)
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: High is <25'
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Medium is in between High and Low
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition: Low is >75'
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: POT_D
Attribute_Definition:
1 character code for the susceptiblity as defined by depth to groundwater (High, Medium & Low)
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: High = 2.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Medium = 1.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition: Low = 0.00
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: Shape.area
Attribute:
Attribute_Label: POT_D_CD
Attribute_Definition:
Number code for the POT_D code (Hight = 2.00, Medium = 1.00 or Low = 0.00)
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2.00
Enumerated_Domain_Value_Definition: High = 2.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 1.00
Enumerated_Domain_Value_Definition: Medium = 1.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 0.00
Enumerated_Domain_Value_Definition: Low = 0.00
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: POT_S
Attribute_Definition:
1 character code for the susceptiblilty as defined by soil type (High, Medium or Low).
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: High = 2.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition: Medium = 1.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition: Low = 0.00
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: POT_S_CD
Attribute_Definition:
Number code for the POT_S code (Hight = 2.00, Medium = 1.00 or Low = 0.00)
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2.00
Enumerated_Domain_Value_Definition: High = 2.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 1.00
Enumerated_Domain_Value_Definition: Medium = 1.00
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 0.00
Enumerated_Domain_Value_Definition: Low = 0.00
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: Shape.len
Attribute:
Attribute_Label: D_GW
Attribute_Definition: Range of Ground Water depth.
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: SUSCP_SUM
Attribute_Definition:
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.
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: SUSCEPT
Attribute_Definition:
1 character code for the total susceptibility as defined by SUSCP_SUM (High, Medium or Low)
Attribute_Definition_Source: King County

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: KCGIS Center
Contact_Person: Cheryl Wilder
Contact_Position: Data Sales Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: 201 S Jackson St, Suite 700
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: US
Contact_Voice_Telephone: 206-263-5220
Resource_Description: /plibrary2/enviro/shapes/polygon/asgwc.shp
Distribution_Liability:
King County disclaims any warranty of use of any digital product or data beyond that for which it was designed.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI Shapefile
Digital_Transfer_Option:
Fees:
Contact KCGIS Client Services for the cost of reproduction - <http://www.kingcounty.gov/operations/GIS/ClientServices.aspx>

Metadata_Reference_Information:
Metadata_Date: 20141213
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: King County Dept. of Natural Resources & Parks
Contact_Person: Ken Rauscher
Contact_Position: Senior GIS Analyst
Contact_Address:
Address_Type: mailing and physical
Address: 201 South Jackson Street, Suite 706
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: US
Contact_Voice_Telephone: 206-296-1922
Contact_Electronic_Mail_Address: firstname.lastname@kingcounty.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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