Areas Susceptible to Groundwater Contamination

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information
• Lineage

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

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:

Single_Date/Time:

Calendar_Date: 20080221

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: enviro

Theme_Keyword: natural resources

Theme_Keyword: groundwater

Place:

Place_Keyword_Thesaurus: Not applicable

Place_Keyword: King County, WA

Place_Keyword: Pacific NW

Place_Keyword: Washington state

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_Person_Primary:

Contact_Person: Ken Rauscher

Contact_Organization:

King County Dept. of Natural Resources and Parks, Water and Lands Resources Division

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical address

Address: 201 South Jackson Street, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: USA

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 XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.6.1500

Cross_Reference:

Citation_Information:

Title: Areas Susceptible to Groundwater Contamination

Data_Quality_Information:

Attribute_Accuracy:

Lineage:

Source_Information:

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_Person_Primary:

Contact_Person: constance carlson

Contact_Organization: King County

Contact_Position: GIS Analyst

Contact_Voice_Telephone: 206 296-4425

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\temp\asgwc.xml

Time_of_Day: 09070200

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: \\Root\kclib\plibrary2\enviro\shapes\polygon\asgwc.shp.xml

Time_of_Day: 13273800

Process_Step:

Process_Description: Dataset copied.

Time_of_Day: 09390900

Process_Step:

Process_Description: Dataset copied.

Time_of_Day: 09472200

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 6005

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Lambert Conformal Conic

Lambert_Conformal_Conic:

Standard_Parallel: 47.500000

Standard_Parallel: 48.733333

Longitude_of_Central_Meridian: -120.833333

Latitude_of_Projection_Origin: 47.000000

False_Easting: 1640416.666667

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000250

Ordinate_Resolution: 0.000250

Planar_Distance_Units: survey feet

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_HARN

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 1.000000

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

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

Detailed_Description:

Entity_Type:

Entity_Type_Label: Areas Susceptible to Groundwater Contamination

Entity_Type_Definition: Polygon attribute table

Entity_Type_Definition_Source: ESRI

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

Overview_Description:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Cheryl Wilder

Contact_Organization: KCGIS Center

Contact_Position: Data Sales Coordinator

Contact_Address:

Address_Type: mailing and physical address

Address: 201 S Jackson St, Suite 700

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: USA

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

Transfer_Size: 0.178

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: \\Root\kclib\plibrary2\district\shapes\polygon\ASGWC.shp

Offline_Option:

Offline_Media: Yes

Recording_Format: CD or DVD Read-only media, if offline

Fees:

Contact KCGIS Client Services for the cost of reproduction - <http://www.kingcounty.gov/operations/GIS/ClientServices.aspx>

Metadata_Reference_Information:

Metadata_Date: 20090105

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: King County Dept. of Natural Resources & Parks

Contact_Person: Ken Rauscher

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical address

Address: 201 South Jackson Street, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: USA

Contact_Voice_Telephone: 206-296-1922

Contact_Electronic_Mail_Address: firstname.lastname@kingcounty.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Profile_Name: ESRI Metadata Profile

Lineage: