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  "description" : "\u003cp\u003e\u003cspan style=\"background-color:#ffffff; color:#000000; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-size:medium;\"\u003e\u003cspan style=\"font-variant-ligatures:none !important; margin:0px; padding:0px;\"\u003e\u003cstrong\u003eCommunity water system service areas\u003c/strong\u003e describe the geographic area that receives drinking water from a given community water system. Knowing these boundaries help to connect water system data (such as, compliance status) with water system customers.\u003c/span\u003e\u003c/span\u003e\u003cbr /\u003e\u003cspan style=\"color:#000000;\"\u003e \u003c/span\u003e\u003c/p\u003e\u003cdiv\u003e\u003cspan style=\"background-color:#ffffff; color:#000000; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-size:medium;\"\u003e\u003cspan style=\"font-variant-ligatures:none; margin:0px; padding:0px;\"\u003eThis dataset contains ~44,000 unique service areas across all 50 states. While not 100% comprehensive, these systems cover 99% of all public water system consumers.  56% of systems are sourced from state/utility databases. The remaining systems, those with no state supplied boundary, were modeled using machine learning techniques. This effort used state sourced service areas to train a model on dozens of explanatory variables including drinking water intakes in order to approximate service areas where none are publicly available.\u003c/span\u003e\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr /\u003e\u003cspan style=\"color:#000000;\"\u003e \u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"background-color:#ffffff; color:#000000; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-size:medium;\"\u003e\u003cspan style=\"font-variant-ligatures:none; margin:0px; padding:0px;\"\u003eThis dataset used the 2025 Quarter 2 Safe Drinking Water Information System for establishing the universe of community water systems.\u003c/span\u003e\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr /\u003e\u003cspan style=\"color:#000000;\"\u003e \u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"background-color:#ffffff; color:#000000; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-size:medium;\"\u003e\u003cspan style=\"font-variant-ligatures:none; margin:0px; padding:0px;\"\u003eFor detailed information on this dataset, visit our GitHub repository: \u003c/span\u003e\u003c/span\u003e\u003ca target=\"_blank\" href=\"https://github.com/USEPA/ORD_SAB_Model\" rel=\"nofollow ugc noopener noreferrer\"\u003e\u003cspan style=\"background-color:#ffffff; color:#000000; font-family:Calibri, Calibri_EmbeddedFont, Calibri_MSFontService, sans-serif; font-size:medium;\"\u003e\u003cspan style=\"font-variant-ligatures:none;\"\u003ehttps://github.com/USEPA/ORD_SAB_Model\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\u003c/div\u003e\u003cdiv\u003e \u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"color:#000000;\"\u003eThe system sourced boundaries are derived from approx. 1000 unique sources. Download the ‘Data Sources.xlsx’ spreadsheet to view these sources: https://epa.maps.arcgis.com/home/item.html?id=ed844af1c459429aa4a7c81299e6f41a.\u003c/span\u003e\u003cbr /\u003e\u003cspan style=\"color:#000000;\"\u003e \u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"color:#000000; font-family:Calibri, sans-serif; font-size:medium;\"\u003e***Version 1.3 was updated on 04/16/25. This update replaced Minnesota's modeled boundaries with authoritative boundaries derived from MN's lead service line inventory***\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e \u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"color:#000000; font-family:Calibri, sans-serif; font-size:medium;\"\u003e***Version 2.0 was updated on 09/19/25. This update substancially increased the number system sourced service areas. Many of these came from lead service line inventories and utility water main data, for example. With this update, 85% of the population on public water is represented by system sourced service areas.***\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e \u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"color:#000000; font-family:Calibri, sans-serif; font-size:medium;\"\u003e***Version 2.01 was updated on 09/29/25. There were minor edits to about 24 systems with duplicate PWSIDs***\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e \u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"color:#000000; font-family:Calibri, sans-serif; font-size:medium;\"\u003e***Version 2.1 was updated on 11/18/2025. 996 system sourced service areas were added. In particular, many system sourced utility boundaries were added for Alaska, Colorado, Florida, Mississippi, and Montana.***\u003c/span\u003e\u003c/div\u003e\u003cdiv\u003e \u003c/div\u003e\u003cdiv\u003e\u003cspan style=\"background-color:rgb(255,255,255); color:rgb(0,0,0); font-family:Calibri, sans-serif; font-size:medium;\"\u003e\u003cspan style=\"display:inline !important; float:none; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;\"\u003e***Version 3.0 was updated on 3/17/2026. This update showcases the release of transient and non-transient non-community water system service areas.***\u003c/span\u003e\u003c/span\u003e\u003c/div\u003e", 
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