Stephen Palmer, Washington State Department of Natural Resources, Division of Geology and Earth Resources June, 2010 vector digital data Washington Division of Geology and Earth Resources Olympia, Washington http://www.dnr.wa.gov/ResearchScience/Topics/GeosciencesData/Pages/gis_data.aspx Washington State Department of Natural Resources, Geology and Earth Resources Division Unpublished Material vector digital data This project is supported through a grant program funded by Washington State Military Department, Emergency Management Division and the Homeland Security Department, Federal Emergency Management Agency seismic_site_class Palmer, Stephen P.; Magsino, Sammantha L.; Bilderback, Eric L.; Poelstra, James L.; Folger, Derek S.; Niggemann, Rebecca A., 2007, Liquefaction susceptibility and site class maps of Washington State, by county: Washington Division of Geology and Earth Resources Open File Report 2004-20, [78 plates, 45 p. text]. Open File Report 2004-20 version 2.0 The methodology chosen for developing the site class map required the construction of a database of shear wave velocity measurements, which was compiled from published and unpublished sources and through the collection of a large number of shear wave velocity measurements from seismic refraction surveys conducted for this project. All of these sources of data were then analyzed using the chosen methodologies to produce the statewide site class maps presented in this dataset. A report and set of county maps derived from this dataset are available as a supplement to this GIS data. This report more fully explains the scientific methods used in producing these data and can be found at http://www.dnr.wa.gov/ResearchScience/Topics/GeologyPublicationsLibrary/Pages/pub_ofr04-20.aspx. en The Washington State Department of Natural Resources, Division of Geology and Earth Resources received grant funding through the Hazard Mitigation Grant Program (HMGP) following the Nisqually earthquake of February 2001 (FEMA-1361-DRWA). This grant required the Division of Geology and Earth Resources to develop statewide liquefaction susceptibility and NEHRP (National Earthquake Hazards Reduction Program) site class maps. Regional earthquake hazard maps such as these support hazard mitigation, emergency planning and response, planning of local zoning ordinances, and building code enforcement. The primary reason for producing this series of earthquake hazard maps is to support revisions to the State Hazard Mitigation Plan required in the implementation of final rules 44CFR201.4 and 44CFR201.6. These Federal code regulations require both state and local agencies to describe the location and extent of earthquake hazards that affect their jurisdictions. Additionally, these maps will serve a great variety of end-users that are crucial partners in earthquake hazard mitigation. These data contain polygons that provide NEHRP (National Earthquake Hazards Reduction Program) seismic site class information for Washington State. A NEHRP seismic site class map provides a general guide to areas where earthquake shaking will be the strongest and where the potential damage to buildings and other structures may be elevated because of soil effects. Please note that it is only a general guide, and does not incorporate other factors affecting the actual severity of ground shaking, such as earthquake size or the distance of the area in question from the earthquake's focus. The polygons were classified with site classes based on criteria described in: Palmer, Stephen P.; Magsino, Sammantha L.; Bilderback, Eric L.; Poelstra, James L.; Folger, Derek S.; Niggemann, Rebecca A., 2007, Liquefaction susceptibility and site class maps of Washington State, by county: Washington Division of Geology and Earth Resources Open File Report 2004-20, 78 plates, with 45 p. text. [http://www.dnr.wa.gov/ResearchScience/Topics/GeologyPublicationsLibrary/Pages/pub_ofr04-20.aspx] This feature class is part of a geodatabase that contains statewide ground response data for Washington State. Other feature classes are liquefaction_susceptibility, seismic_design_class_d, and seismic_design_site_class. June, 2010 publication date Complete Irregular -124.930116 -116.708447 49.050071 45.481022 575944.612193 2551197.659383 81876.877705 1355862.218508 Jackson, Julia A. (ed.), Mehl, James P., Jr. (ed.), Neuendorf, Klaus K. E. (ed.), 2005, Glossary of Geology; 5th ed.: American Geological Institute, 779 p. siteclass liquefaction amplification ground failure relative earthquake hazard landslide hazards pore pressure USGS Geographic Names Information System (GNIS) http://geonames.usgs.gov/ USA Washington State None The Washington Division of Geology and Earth Resources (DGER) shall not be held liable for improper or incorrect use of the data described and/or contained herein. This product is provided 'as is' without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular use. The Washington State Department of Natural Resources and the authors of this product will not be liable to the user of this product for any activity involving the product with respect to the following: (a) lost profits, lost savings, or any other consequential damages; (b) the fitness of the product for a particular purpose; or (c) use of the product or results obtained from use of the product. Although these data have been processed successfully on computers of DGER, no warranty, expressed or implied, is made by DGER regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. Appropriate use of these map data is the responsibility of each user. - Users must acknowledge the originators when using the data set as a source. - Data should not be used beyond the limits of the source scale. - The data set is not a survey document and should not be utilized as such. This map is meant only as a general guide to delineate areas prone to liquefaction. It is not a substitute for site-specific investigation to assess the potential for liquefaction for any development project. Because the data used in the liquefaction susceptibility assessment have been subdivided on the basis of regional geologic mapping, this map cannot be used to determine the presence or absence of liquefiable soils beneath any specific locality. This determination requires a site-specific geotechnical investigation performed by a qualified practitioner. mailing address Olympia WA 98504-7007

PO Box 47007

360- 902-1450 360-902-1785 Washington State Department of Natural Resources, Geology and Earth Resources Division geology@dnr.wa.gov Stephen P. Palmer, Sammantha L. Magsino, Eric L. Bilderback, James L. Poelstra, Derek S. Folger, and Rebecca A. Niggemann of the Washington State Department of Natural Resources, Geology and Earth Resources Division ESRI ArcCatalog 9.3.1.3500 File Geodatabase Feature Class This map is meant only as a general guide to delineate areas based on their potential for enhanced ground shaking. It is not a substitute for site-specific investigation to assess the actual ground conditions and potential for amplified ground shaking, as measured by the site class or other more quantitative analyses. Because the data used in producing this site class map is based on regional geologic mapping, this map cannot be used to make a final determination at any specific locality. This determination requires a site-specific evaluation performed by a qualified practitioner. A factor affecting map accuracy is the placement of contacts on the original geological mapping. Accuracyof these geologic contacts is influenced by a number of factors that include: - determination of geologic units and criteria used during field mapping, - correct identification of the geologic units, A factor affecting map accuracy is the placement of contacts on the original geological mapping. Accuracy of these geologic contacts is influenced by a number of factors that include: - determination of geologic units and criteria used during field mapping, - correct identification of the geologic units, - accurate location of geologic contacts that can be observed and mapped in the field, - uncertainty in mapping of gradational contacts, - inference of contact locations where they cannot be observed and mapped. Quantification of this source of map inaccuracy is difficult, if not impossible. For the purpose of this study the location of geologic contacts have been accepted at face value from theiroriginal sources and used as the basis for delineating site classes. This map is meant only as a general guide to delineate areas based on their potential for enhanced ground shaking. It is not a substitute for site-specific investigation to assess the actual ground conditions and potential for amplified ground shaking, as measured by the site class or other more quantitative analyses. Because the data used in producing this site class map is based on regional geologic mapping, this map cannot be used to make a final determination at any specific locality. This determination requires a site-specific evaluation performed by a qualified practitioner. Washington Division of Geology and Earth Resources June, 2003 Version 1.0 vector digital data Digital Report 2 Olympia, Washington Washington Division of Geology and Earth Resources 1:100000 CD-ROM 200306 publication date Geologic Map Quadrangles of Washington State 1:100000 scale Washington State Department of Natural Resources, Division of Geology and Earth Resources mailing address

PO Box 47007

Olympia Washington 98504-7007 360-902-1450 360-902-1785 geology@dnr.wa.gov This map is based solely on surficial geology published at a scale of 1:100,000 by the Washington State Department of Natural Resources, Division of Geology and Earth Resources (Washington Division of Geology and Earth Resources staff, 2001). Each polygon was assigned a site class code and then dissolved on that code. The methodology chosen for developing the site class map required the construction of a database of shear wave velocity measurements. This database was created by compiling shear wave velocity data from published and unpublished sources, and through the collection of a large number of shear wave velocity measurements from seismic refraction surveys conducted for this project. All of these sources of data were then analyzed using the chosen mythologies to produce the statewide site class maps presented with this report. For a detailed description of this process (both nontechnical and technical) see the sections titled "Development of Liquefaction Susceptibility and Site Class Maps for Washington State" and "Site Class Map Methodology" in the document Liquefaction Susceptibility and Site Class Maps of Washington State, By County located at the following site: http://www.dnr.wa.gov/ResearchScience/Topics/GeologyPublicationsLibrary/Pages/pub_ofr04-20.aspx Version History Version 2.0 (June, 2010): This dataset was migrated from a shapefile to a feature class within a geodatabase. Feature class names and attribute names were changed, and metadata for the entire dataset was updated. Version 1.0 (October, 2008) Original data in shapefile format. All polygons close. No duplicate features exist in the theme. Arc-node and polygon topology is maintained by ESRI ArcGIS software and is error free with respect to that software. The completeness of the data reflects the content of the field work and the sources. Data is complete for the State of Washington. Vector G-polygon 32470 Simple Polygon FALSE 32470 TRUE FALSE coordinate pair 0.000328 0.000328 survey feet Lambert Conformal Conic 45.833333 47.333333 -120.500000 45.333333 1640416.666667 0.000000 D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983_HARN NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602 seismic_site_class Feature Class 32470 International Building Code This dataset identifies site classes for approximately 34,000 polygons derived from the geologic map of Washington OBJECTID OBJECTID OID 4 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. 20031002 20040902 Shape Geometry 0 0 0 SEISMIC_SITE_CLASS_ID SEISMIC_SITE_CLASS_ID Double 8 0 0 Unique polygon identifier. Washington Division of Geology and Earth Resources SEISMIC_SITE_CLASS_CD SEISMIC_SITE_CLASS_CD String 6 0 0 Codes representing the site class categories. International residential code SEISMIC_SITE_CLASS SEISMIC_SITE_CLASS String 20 0 0 Seismic site classes. International residential code SEISMIC_SITE_CLASS_DESC SEISMIC_SITE_CLASS_DESC String 300 0 0 Descriptions of the seismic site classes. International residential code Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. mailing address

PO Box 47007

Olympia Washington 98504-7007 360-902-1450 360-902-1785 geology@dnr.wa.gov Washington State Department of Natural Resources, Geology and Earth Resources Division Downloadable Data This digital data and metadata, (hereinafter collectively referred to as the "information"), are provided on an "AS IS", "AS AVAILABLE" and "WITH ALL FAULTS" basis. Neither Department of Natural Resources nor any of its officials and employees makes any warranty of any kind for this information, express or implied, including but not limited to any warranties of merchantability or fitness for a particular purpose, nor shall the distribution of this information constitute any warranty. The information is collected from various sources and will change over time without notice. DNR and its officials and employees assume no responsibility or legal liability for the accuracy, completeness, reliability, timeliness, or usefulness of any of the information provided nor do they represent that the use of any of the information will not infringe privately owned rights. The information is not intended to constitute advice nor is it to be used as a substitute for specific advice from a licensed professional. You should not act (or refrain from acting) based upon the information without independently verifying the information and, as necessary, obtaining professional advice regarding your particular facts and circumstances. References to any specific commercial product, process, and service by trade name, trademark, or manufacturer do not constitute or imply endorsement, recommendation, or favoring by DNR and its officials and employees. IN NO EVENT WILL DNR BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY DAMAGES ARISING OUT OF THE USE OF OR INABILITY TO USE THE DIGITAL DATA, EVEN IF DNR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. --- 60.763 NONE none Available for download from: http://www.dnr.wa.gov/ResearchScience/Topics/GeosciencesData/Pages/gis_data.aspx None 20100901 mailing address

PO Box 47007

Olympia Washington 98504-7007 360-902-1450 360-902-1785 geology@dnr.wa.gov Washington State Department of Natural Resources, Geology and Earth Resources Division FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time en None. The Washington Division of Geology and Earth Resources (DGER) shall not be held liable for improper or incorrect use of the data described and/or contained herein. This product is provided 'as is' without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular use. The Washington State Department of Natural Resources and the authors of this product will not be liable to the user of this product for any activity involving the product with respect to the following: (a) lost profits, lost savings, or any other consequential damages; (b) the fitness of the product for a particular purpose; or (c) use of the product or results obtained from use of the product. Although these data have been processed successfully on computers of DGER, no warranty, expressed or implied, is made by DGER regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile 20230202 11243200 FALSE 20100901 11141700 20100901 11141700 1.0 FGDC CSDGM Metadata ESRI ArcCatalog 9.3.1.3500 seismic_site_class 575944.612193 2551197.659383 1355862.218508 81876.877705 1 -124.930116 -116.708447 49.050071 45.481022 1 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002 withheld Local Area Network 60.763 File Geodatabase Feature Class NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602 32470 20100901