The Washington State Department of Ecology has defined a facility/site as an operation at a fixed location that is of interest to the agency because it has an active or potential impact upon the environment. Ecology recognizes that this definition is broad and generic; but the agency has found that such a definition is required in order to encompass all the facilities and sites in Washington that are within the purview of its programs. These programs cover a wide variety of environmental aspects and conditions including air quality, water quality, shorelands, water resources, toxics cleanup, hazardous waste, toxics reduction, and nuclear waste. The definitions of a facility and/or a site vary significantly across these programs, both in practice and law. Examples of facilities/sites include: operation that pollutes the air or water, spill cleanup site, hazardous waste management facility, hazardous waste generator, licensed laboratory, SUPERFUND site, farm which draws water from a well, solid waste recycling center, etc.

The Washington State Department of Ecology has conducted monthly water quality monitoring at hundreds of freshwater and marine water quality stations throughout the state since 1959. Ecology monitors about 80 stations each year, some on a one-year basis, some on a five-year rotation, and some are monitored continuously. This spatial data set shows the location of these monitoring stations.

The Channel Migration Potential (CHAMP) layer contains stream networks of Western Washington (and much of Western Oregon) with associated data and information important for assessing channel migration activity. It also features information on channel characteristics such as stream flow and physical dimensions. This data layer’s main feature is a classification of channel migration potential based on channel confinement and erosion potential. The layer was derived from existing statewide geospatial datasets and classified according to channel migration measurements by the High Resolution Change Detection (HRCD) project for the Puget Sound Region (Washington Department of Fish and Wildlife, 2014). While the layer identifies the potential for channel migration, it does not predict channel migration rates. Thus, this data layer should be used to screen and prioritize stream reaches for further channel migration evaluation. The tool helps plan and prioritize floodplain management actions such as Channel Migration Zone mapping, erosion risk reduction, and floodplain restoration. The background, use, and development of the CHAMP layer are fully described in Ecology Publication 15-06-003 (full report citation and URL below). That report also describes visual assessment techniques that should be used along with the CHAMP layer to assess channel migration potential. Legg, N.T. and Olson, P.L., 2015, Screening Tools for Identifying Migrating Stream Channels in Western Washington: Geospatial Data Layers and Visual Assessments: Washington State Department of Ecology Publication 15-06-003, 40 p. https://fortress.wa.gov/ecy/publications/SummaryPages/1506003.htmlThe tool developers would like to thank the following people for their contribution to this work: • Brian D. Collins (University of Washington) • Jerry Franklin (Washington Department of Ecology) • Christina Kellum (Washington Department of Ecology) • Matt Muller (Washington Department of Fish and Wildlife) • Hugh Shipman (Washington Department of Ecology) • Terry Swanson (Washington Department of Ecology) This project has been funded wholly or in part by the United States Environmental Protection Agency under Puget Sound Ecosystem Restoration and Protection Cooperative Agreement Grant PC-00J27601 with Washington Department of Ecology. The contents of this document do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.

This map displays the most recent summary streamflow values within the state of Washington from gages maintained by the Washington State Department of Ecology and the United States Geological Survey (USGS). The streamflow symbols reflect the magnitude of the most recent estimated flows relative to historic flows that occurred in past years on the current date at that particular stream gaging station. Generally, streamflows greater than the 75th percentile are considered above normal. Flows between the 25th and 75th percentiles are considered normal, and flow less than the 25th percentile are considered low.Differences exist in Ecology’s and USGS’ presentation of their respective flow information. The flow data displayed for the Ecology gaging stations are calculated overnight from statistics measured from the previous day’s flow so that all streamflow data displayed for the Ecology gaging stations are relative to the previous day’s flow.USGS reports flow in near real-time meaning the reported flow estimates are updated several times a day and are no more than 6 hours old. The flow data displayed for the USGS gaging stations reflects the near real-time flows relative to the historic record of flows on the current date.For more information on the Department of Ecology River and Stream Flow Monitoring program, visit http://www.ecy.wa.gov/programs/eap/flow/index.html.For more information on the USGS Water Watch program, visit http://waterwatch.usgs.gov/.Questions or concerns about the map and data displayed should be directed to gis@ecy.wa.gov.All data displayed are provisional and subject to significant change.

The Environmental Information Management System (EIM) is the Department of Ecology's main database for environmental monitoring data. EIM contains records on physical, chemical, and biological analyses and measurements. Supplementary information about the data (metadata) is also stored, including information about environmental studies, monitoring locations, and data quality. Data in EIM is collected by Ecology or on behalf of Ecology by environmental contractors - and by Ecology grant recipients, local governments, and volunteers. EIM Locations is a point feature service representing the monitoring locations from EIM. The locations consist of both surface locations for monitoring air, water, and habitat and wells for monitoring ground water. This feature service queries directly the EIM publication database which is updated nightly from the production transactional database.GIS Metadata: https://www.ecy.wa.gov/services/gis/data/environment/eimlocations.htm For more information, contact Christina Kellum, Washington State Department of Ecology GIS Manager, gis@ecy.wa.gov.

The Shoreline Public Access Project is a geographic information systems (GIS) project to identify the location, length, and degree of public access to Washington State's marine shoreline. Before the project, it was unknown how much of Washington's 3068 miles of shoreline was public. The information was scattered throughout various government agencies and the data quality was variable. Through the Shoreline Public Access Project, the best available information has been summarized into a single data set, used to answer questions about our shoreline's ownership and public accessibility.The purpose of the Shoreline Public Access Project is: 1) to combine various sources of shoreline data into an organized and comprehensive database 2) to create a more accurate dataset of publicly accessible shoreline. The ultimate purpose of this data is to give shoreline managers and planners another tool to assist them in making important shoreline decisions.For more information, contact Christina Kellum, Washington State Department of Ecology GIS Manager, gis@ecy.wa.gov.

The Washington State Department of Ecology has defined a facility/site as an operation at a fixed location that is of interest to the agency because it has an active or potential impact upon the environment.Ecology recognizes that this definition is broad and generic; but the agency has found that such a definition is required in order to encompass all the facilities and sites in Washington that are within the purview of its programs. These programs cover a wide variety of environmental aspects and conditions including air quality, water quality, shorelands, water resources, toxics cleanup, hazardous waste, toxics reduction, and nuclear waste. The definitions of a facility and/or a site vary significantly across these programs, both in practice and law.Examples of facilities/sites include:Operation that pollutes the air or waterSpill cleanup siteHazardous waste management facilityHazardous waste generatorLicensed laboratorySUPERFUND siteFarm which draws water from a wellSolid waste recycling centerFacility/Site Interactions is a point feature service representing the facility/site locations stored in the Facility/Site database. This feature service queries directly the Facility/Site publication database which is updated nightly from the production transactional database.GIS Metadata: https://www.ecy.wa.gov/services/gis/data/environment/facsite.htmFor more information, contact Christina Kellum, Washington State Department of Ecology GIS Manager, gis@ecy.wa.gov.

The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board on Geographic Names, a Federal inter-agency body chartered by public law to maintain uniform feature name usage throughout the Government and to promulgate standard names to the public. The GNIS is the official repository of domestic geographic names data; the official vehicle for geographic names use by all departments of the Federal Government; and the source for applying geographic names to Federal electronic and printed products of all types. See http://geonames.usgs.gov for additional information.

This GIS layer contains bathymetric elevation bands (derived from bathymetric contours) of selected freshwater lakes in Washington State. The majority of the bathymetric contours were digitized from maps contained in a series of seven documents: Reconnaissance Data on Lakes in Washington, Water-Supply Bulletin 43, Volume 1 through 7 by the United States Geological Survey in cooperation with the Washington State Department of Ecology. The exceptions are 1) Lake Chelan which was digitized in 2016 from the publication Morphometry of Lake Chelan (published in January 1987); 2) Lake Sammamish whose digital data was acquired from King County in 2013 and is derived from data collected during the publication of Development of a Three-Dimensional Hydrographic Model of Lake Sammamish (published in November 2008); and 3) Lake Crescent, whose digital bathymetric soundings were taken by a private party during 2013/2014 and provided to the Department of Ecology and were converted to contour lines in 2016.

This web map contains datasets representing the National Hydrography Dataset (NHD) of Washington State, labels for NHD features, and the Watershed Boundary Dataset (WBD) basins for Hydrologic Unit Code (HUC) levels 4, 8, and 12. The NHD dataset has been adopted as the Washington State hydrography standard. The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all.This high-resolution NHD, generally developed at 1:24,000/1:4,800 scale. Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.This map contains a BETA version of WaterType attached to the Skagit River Basin NHDflowlines. This Beta version of the Watertype is the result of a pilot project and will be refined over the next six months. The field is for users of NHD who want access to Water Type and who are not under Forest Practices rules. The WaterType uses Shorelines Master Program type S streams and Fish Presence Data from both WA Dept Natural Resources and WA Dept Fish and Wildlife.

The Department of Ecology is required under RCW 70A.205.545 to annually post by July 1 where businesses in Washington state must arrange for organic materials collections services based on the volumes of organic material and solid waste they produce. This map represents these areas for the period between January 1, 2025 and December 31, 2025. The collection requirements apply to the following businesses according to the schedule below:-Jan. 1, 2024 -Businesses generating at least eight cubic yards of organic material waste per week must arrange for organic materials management service.- Jan. 1, 2025 -Businesses generating at least four cubic yards of organic material waste per week must arrange for organic materials management service.- Jan. 1, 2026 - Businesses generating at least four cubic yards of solid waste per week must arrange for organic materials management service.More information about these requirements can be found here: https://apps.ecology.wa.gov/publications/SummaryPages/2207025.html.Additional input for the extent of these data was provided by Washington Refuse and Recycling Association, Washington Association of Counties Solid Waste Managers Affiliate, Association of Washington Cities, Washington State Utilities and Transportation Commission, Cedar Grove Composting (Maple Valley WA), Sanitary Services Company (Bellingham WA), Winton Manufacturing (Leavenworth WA).

This dataset contains spatial and attribute information of the Surface Water Quality Standards for the State of Washington, Chapter 173-201A WAC. Four views of the WQ Standard are contained in this dataset, Freshwater Beneficial Uses, Seasonal Supplemental Spawning and Egg Incubation Temperature Standards, rules designated in Table 602, and exceptions to Table 602 listed in the footnotes. If any discrepancies are found between GIS layers and the published rule, the published rule takes precedence. Updated April 2018.

Drought Areas data description: This data layer is derived from copying the designated WRIAs. WRIAs data description: Water Resource Inventory Areas (WRIA) for Washington State at 1:24,000 scale. WRIAs were formalized under WAC 173-500-040 and authorized under the Water Resources Act of 1971, RCW 90.54. Ecology was given the responsibility for the development and management of these administrative and planning boundaries. These boundaries represent the administrative under pinning of this agency's business activities. The original WRIA boundary agreements and judgments were reached jointly by Washington's natural resource agencies (Ecology, Natural Resources, Fish and Wildlife) in 1970.

Open water features, both natural and anthropic, for King County and portions of adjacent counties. Features can be displayed as water or non water to distinguished between water and land. FEAT_TYPE item defines multiple classes of features, primarily lakes/ponds and streams rivers. Puget Sound and significant double-banked streams and rivers are shown, plus a limited number of manmade features such as aqueducts, ditches, channels and flumes. Areal open water features are mainly differentiated as either Lakes/Ponds or Impoundments roughly defined as natural and anthropic, respectively. This layer includes wetlands only to the extent that the open water portion of emergent wetlands is mapped. A value in the STATUS item indicates whether the water feature is associated with a wetland, dependent on best available ancillary data and orthoimagery. The name of features, where available, is included. By using the SUBSET item the layer can be defined to show only the larger water bodies and rivers.

© Pierce County GIS vector data, Snohomish County GIS vector data, King County Water and Land Resources and Washington State Department of Ecology vector data

The Environmental Information Management System (EIM) is the Department of Ecology's main database for environmental monitoring data. EIM contains records on physical, chemical, and biological analyses and measurements. Supplementary information about the data (metadata) is also stored, including information about environmental studies, monitoring locations, and data quality. Data in EIM is collected by Ecology or on behalf of Ecology by environmental contractors - and by Ecology grant recipients, local governments, and volunteers. EIM Locations is a point feature service representing the monitoring locations from EIM. The locations consist of both surface locations for monitoring air, water, and habitat and wells for monitoring ground water. This feature service queries directly the EIM publication database which is updated nightly from the production transactional database.

WBDHU6: This geospatial dataset represents the 3rd level (6-digit) hydrologic unit boundaries of the Watershed Boundary Dataset (WBD) layer for Washington. It was created by dissolving boundaries from the finer resolution hydrologic units to create these broader boundaries. See metadata for the wbd_wa_poly feature class for a more complete description of the WBD. USGS Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD) located here: http://pubs.usgs.gov/tm/11/a3/pdf/tm11-a3.pdf

The Regulated USTs, All Active & Inactive Facilities List shows all underground storage tanks (UST) at regulated facilities in Washington State. Previously, this list was separated into active facilities and inactive facilities due to the size of the list. To make searching easier, the lists are now combined, and a ‘Site Active’ filter is available if you only want to see active or inactive facilities, but not both. Active facilities are defined as those having at least one tank with Operational, Temporarily Closed, Deferred, or Red Tag status.Source: https://apps.ecology.wa.gov/tcpwebreporting/reports/ust?CityZip=tacoma

This is a detailed GIS database of public access locations (point features) along coastal shorelines. It contains a rich variety of information such as amenities (boat launches, toilets, ADA accessible, etc.) and activities (tidepooling, hiking, shellfishing, etc.) that are available at each access point.The information was collected using a GPS in the field between 2008-2010 and is updated as resources allow.For more information, contact Christina Kellum, Washington State Department of Ecology GIS Manager, gis@ecy.wa.gov.

A geodatabase of 387,237 points statistically chosen from the February 2005 version of the Washington DNR Hydrography layer representing stream site locations. For details, see the Design Documentation created by 3/18/2006 by Tony Olsen (U.S. EPA) and Janelle Black (NW Indian Fisheries Commission). The design document is available from the Washington State Department of Ecology at https://fortress.wa.gov/ecy/gispublic/DataDownload/documents/EPA_ENV_MasterSampleDesign.pdf.

These polygon features represent Water Quality Improvement (WQI) projects managed by the Washington State Department of Ecology. WQI projects can be TMDLs, Straight To Implementation (STI) plans, 4b projects and TMDL Alternatives. The boundaries show where the WQI project applies and is being implemented. TMDL Boundaries identified as "In Development" are considered draft and are subject to change when the project has been approved by the U.S. EPA. U.S. EPA only approves TMDLs and 4b projects. Boundaries are representations of each particular project and does not replace the official version of the approved TMDL report. Please see the TMDL Project webpage for specific information about that project. TMDL projects are required by the Federal Clean Water Act to identify pollution sources and pollution load reductions needed for water bodies to meet water quality standards. Once a TMDL project has been approved by the U.S. EPA, it enters an implementation phase where both point source and non-point source pollution is reduced through permit limits regulated under the NPDES system and through best management practices for land uses that contribute to non-point source pollution. Ecology’s water quality program works with permittees, local governments, watershed stakeholders, and residents to reduce sources of pollution to protect our aquatic resources and public health.