Combined Risk Assessment - Domestic Wells and State Small Water Systems

This web experience contains a dashboard that displays spatial data and summary statistics for the 2025 Risk Assessment for domestic wells and state small water systems. Users can navigate between four tabs that display the combined risk as well as specific risk indicators for water quality, water shortage, and socioeconomic risk. Users can filter the map display and summary statistics to specific geographic areas, distance to a community water system, or risk bin.<div><br /><div><p style='margin-top:0px; margin-bottom:6px; padding-bottom:1em;'>Water quality data is from the State Water Resources Control Board <a href='https://gispublic.waterboards.ca.gov/portal/apps/experiencebuilder/experience/?id=18c7d253f0a44fd2a5c7bcfb42cc158d' target='_blank' rel='nofollow ugc noopener noreferrer'>Aquifer Risk Map</a>.<br />Water shortage data is from the <a href='https://experience.arcgis.com/experience/ae1b4e3e41004f07b4901a7a3fa50637/' target='_blank' rel='nofollow ugc noopener noreferrer'>Department of Water Resources Water Shortage Vulnerability Assessment Scoring</a>.<br />Socioeconomic data is from the Office of Environmental Health Hazard Assessment.</p><p style='margin-top:0px; margin-bottom:6px; padding-bottom:1em;'>Domestic well counts are from the Department of Water Resources OSWCR database.<br />State small water system counts are from the Division of Drinking Water.</p><p style='margin-top:0px; margin-bottom:6px; padding-bottom:1em;'>For more information, including the methodology write-up, please refer to the <a href='https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/needs.html' target='_blank' rel='nofollow ugc noopener noreferrer'>SWRCB Needs Assessment homepage</a>.</p><p style='margin-top:0px; margin-bottom:6px; padding-bottom:1em;'>To connect to the GIS data in this dashboard and the GIS data for previous years risk assessments, please use the links below:</p><p style='margin-top:0px; margin-bottom:6px; padding-bottom:1em;'>2025 Risk Assessment <font size='3'><a href='https://gispublic.waterboards.ca.gov/portalserver/rest/services/Hosted/CombinedRiskAnalysis2025/FeatureServer' style='box-sizing:border-box; color:rgb(7, 111, 229); text-decoration-line:none; background-color:rgba(0, 0, 0, 0); font-family:&quot;Avenir Next&quot;, &quot;Helvetica Neue&quot;, sans-serif, &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;; text-align:center;' target='_blank' rel='nofollow ugc noopener noreferrer'><u>REST Endpoint URL</u></a><span style='box-sizing:border-box; color:rgb(5, 5, 5); font-family:&quot;Avenir Next&quot;, &quot;Helvetica Neue&quot;, sans-serif, &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;; text-align:center; background-color:rgba(0, 0, 0, 0);'>/</span><a href='https://gispublic.waterboards.ca.gov/portal/home/item.html?id=46484d48b79f4c36b30e6116ea843a4d' style='box-sizing:border-box; color:rgb(7, 111, 229); text-decoration-line:none; background-color:rgba(0, 0, 0, 0); font-family:&quot;Avenir Next&quot;, &quot;Helvetica Neue&quot;, sans-serif, &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;; text-align:center;' target='_blank' rel='nofollow ugc noopener noreferrer'><u>SWRCB Portal page</u></a></font><br />2024 Risk Assessment <a href='https://gispublic.waterboards.ca.gov/portalserver/rest/services/Hosted/CombinedRiskAnalysis2024/FeatureServer' target='_blank' rel='nofollow ugc noopener noreferrer'>REST Endpoint URL</a>/<a href='https://gispublic.waterboards.ca.gov/portal/home/item.html?id=221e4125b4bf41a38fdc0988dcfe8124' target='_blank' rel='nofollow ugc noopener noreferrer'>SWRCB Portal page</a><br />2023 Risk Assessment <a href='https://gispublic.waterboards.ca.gov/portalserver/rest/services/Hosted/Combined_Risk_Domestic_Wells_and_State_Small_Water_Systems/FeatureServer' target='_blank' rel='nofollow ugc noopener noreferrer'>REST Endpoint URL</a>/<a href='https://gispublic.waterboards.ca.gov/portal/home/item.html?id=1bc3961e3d624452ba58da55677dc51b' target='_blank' rel='nofollow ugc noopener noreferrer'>SWRCB Portal page</a><br />2022 Risk Assessment <a href='https://gispublic.waterboards.ca.gov/portalserver/rest/services/Hosted/Combined_Risk___2022_Needs_Assessment_WFL1/FeatureServer' target='_blank' rel='nofollow ugc noopener noreferrer'>REST Endpoint URL</a>/<a href='https://gispublic.waterboards.ca.gov/portal/home/item.html?id=2a31b47e4bc44d2c821496fd295bc02c' target='_blank' rel='nofollow ugc noopener noreferrer'>SWRCB Portal page</a></p></div></div>