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contribute significantly to the replenishment of ground water. These conditions also create a high potential for ground water contamination. All lands and shorelands classified as having high aquifer recharge potential and aquifer susceptibility are hereby designated as critical aquifer recharge areas. Critical aquifer recharge areas also include known wellhead protection areas for Class A water systems. A wellhead protection area is the surface and subsurface area surrounding a well or wellfield that supplies a public water system through which contaminants are likely to pass and eventually reach the water well(s) as designated under the Federal Safe Drinking Water Act. 2. Mapping: The general location and extent of critical aquifer recharge are shown on maps maintained by the County. These maps are useful as a guide for Kittitas County, project applicants, and/or property owners, and may be updated as more information on aquifer recharge and susceptibility becomes available. These maps are a reference and do not provide a conclusive or final critical area designation. 3. Classification: All Kittitas County shorelands shall be classified as having either a high, medium, or low aquifer recharge potential. At a minimum, classification shall be based on soil permeability and recharge potential as described within the Soil Survey of Kittitas County. Where adequate information is available, aquifer recharge potential shall be further classified based on the recharge potential of surficial geologic materials, presence or absence of restrictive layers, surface and groundwater monitoring data, wellhead protection areas, depth to groundwater, topography (i.e., slopes), and locally adopted groundwater protection plans and studies. Land classified as having a high, medium, or low aquifer recharge potential shall also be classified as having a high, medium, or low susceptibility to contamination of an underlying aquifer, respectively. Based on these criteria, the potential for recharging aquifers or transmitting contaminants to the underlying aquifer is greatest where the aquifer is close to the ground surface, where ground surface slopes are minimal, and where the recharge potential of the soils and/or surficial geologic material is greatest. All wellhead protection areas shall be designated as highly susceptible critical aquifer recharge areas. Wellhead Protection Areas are the areas defined by the boundaries of the 10-year time of ground water travel, in accordance with WAC 246-290-135. (Ord. 2016-006, 2016) 17B.05.020V Critical aquifer recharge areas – protection standards. 1. Protection standards for critical aquifer recharge areas have been incorporated into the water quality regulations in KCC 17B.05.060 and into the provisions for specific shoreline uses in KCC 17B.04. Such standards shall be considered the minimum necessary to protect critical aquifer recharge areas. 2. New use and development in a critical aquifer recharge area shall meet the following standards: a. The proposed use and/or development will not cause contaminants to enter the aquifer and will not significantly adversely affect the recharging of the aquifer. b. The proposed use and/or development must comply with applicable water source protection requirements of the Federal Environmental Protection Agency (EPA), Washington State Department of Health, and the Kittitas County Health Department. c. The proposed use and/or development must be designed and constructed in accordance with applicable stormwater management standards 3. When located within an area of medium or high aquifer susceptibility, aboveground/underground storage tanks or vaults for the storage of hazardous substances,