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TMDL Effectiveness Monitoring projects
Map of Post-TMDL, or TMDL effectiveness monitoring studies and data. -
Wetland
This dataset represents wetland CEFs identified during the development review process since 1995. Prior to 1995, data is either unavailable or lost.Wetland CEFs were digitized... -
Municipal Stormwater Permit Outfall Data
Special Condition S8.D of the 2007-2012 Phase I Municipal Stormwater Permit required permittees to collect and analyze data to evaluate pollutant loadings of stormwater... -
Rock Outcrop
This dataset represents Rock Outcrop Critical Environmental Features (CEFs) identified during the development review process since 1995. Prior to 1995, data is either... -
Annual 2013 Water Quality Index Scores
Routine freshwater monitoring data collected by the The WA State Department of Ecology's River and Stream Monitoring Program are summarized by a technique called the "Water... -
Western Washington Hydrology Model (WWHM)
This dataset includes versions of the WWHM as they are released, including installation files and descriptions of changes along with dates and version numbers. -
2016 Residential Sewer Rate Survey
The survey includes monthly sewer rates per “equivalent residential unit” (ERU)* served by municipal wastewater treatment plants in Washington State. Information was compiled... -
Summer Low Flow Trend Indicator 1975-2014
Summer Low Flow Trend Indicator results, statewide, updated through Oct 2014 This information is updated annually with an additional year of flow data. These results are... -
Cleanup Sites in Washington State
This is a list of cleanup sites in Washington State. It includes sites and associated websites. It includes location data, Cleanup Status, Site Rank – if the site is ranked, and... -
Water Resource Inventory Areas (WRIA) -- Washington State
Areas for state water resource planning and administration. -
Spring
Spring critical environmental features (CEFs) were digitized from construction plans, environmental assessments and City of Austin staff review and field observations. -
Summer Low Flow Indicator 1975-2017
Summer Low Flow Trend Indicator results, statewide, updated through Oct 2017. This information is updated annually with an additional year of flow data. These results are... -
Spring
Spring critical environmental features (CEFs) were digitized from construction plans, environmental assessments and City of Austin staff review and field observations.