Description: This data set is used as a reference layer for geographic information systems to show the approximate locations of public water supply wellhead protection areas in Washington state.
Service Item Id: e4c3ff014812419bb4b86af06d05f52c
Copyright Text: Washington State Department of Health
Color: [0, 38, 115, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: left Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 12 Font Family: Tw Cen MT Condensed Font Style: normal Font Weight: normal Font Decoration: none
Description: PA defines a sole source aquifer (SSA) as one where:The aquifer supplies at least 50 percent of the drinking water for its service areaThere are no reasonably available alternative drinking water sources should the aquifer become contaminatedThe SSA program enables EPA to designate an aquifer as a sole source of drinking water and establish a review area. EPA then reviews proposed projects that will both:Be located within the review areaReceive federal fundingThe review area includes the area overlying the SSA. It may also include the source areas of streams that flow into the SSA's recharge zone. EPA's review is intended to ensure that the projects do not contaminate the SSA.The SSA program is authorized by Section 1424(e) of the Safe Drinking Water Act of 1974 (Public Law 93-523, 42 U.S.C. 300 et. seq), which states:"If the Administrator determines, on his own initiative or upon petition, that an area has an aquifer which is the sole or principal drinking water source for the area and which, if contaminated, would create a significant hazard to public health, he shall publish notice of that determination in the Federal Register. After the publication of any such notice, no commitment for federal financial assistance (through a grant, contract, loan guarantee, or otherwise) may be entered into for any project which the Administrator determines may contaminate such aquifer through a recharge zone so as to create a significant hazard to public health, but a commitment for federal assistance may, if authorized under another provision of law, be entered into to plan or design the project to assure that it will not so contaminate the aquifer.”
Service Item Id: e4c3ff014812419bb4b86af06d05f52c
Copyright Text: U.S. Environmental Protection Agency
Description: Source: U.S. Geological Survey "The Ground-Water System and Ground-Water Quality in Western Snohomish County, Washington" (1997). Copies of the USGS survey are available from Snohomish County Department of Planning and Development Services, 3000 Rockefeller Ave, 4th Floor, Administration Bldg. Everett, Wa.Use the item “score_grou” to display the three catergories of aquifer sensitivityscore_grou = 1 Low aquifer sensitivityscore_grou = 2 Medium aquifer sensitivityscore_grou = 3 High aquifer sensitivity