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animals wastes, sewage sludge, fertilizers, or other chemical or biological hazards or dangerous wastes as defined in WAC Chapter 173-303, or any other substances, solids, or liquids in quantities identified by Kittitas County Public Health, consistent with WAC 173-303, as a risk to groundwater quality, shall be designated and constructed so as to: a. Prevent the release of such substances to the ground, groundwaters, or surface waters; b. Be contained or enclosed by an impervious containment area with a volume greater than the volume of the storage tank or vault to avoid an overflow of the containment area; c. Provide for release detection; d. Provide written spill response and spill notification procedures to the local fire district; e. Use material in the construction or lining of the storage containment area which is compatible with the substance to be storage to protect against corrosion or leakage, or otherwise designed in a manner to prevent the release or threatened release of any storage substance; and f. Comply with chapters 173-303 and 173-360 WAC. g. The tanks must comply with Ecology regulations contained in WAC Chapters 173- 360 and 173-303 as well as International Building Code requirements. 4. The Administrator may grant a waiver from one or more of the above requirements (in 3.a. through g.) upon a finding that the aboveground storage activity would not create a significant risk to groundwater quality. Aboveground or underground storage facilities designed and maintained according to an approved plan from the Natural Resources Conservation Service or Kittitas County Conservation District are exempt from these requirements but remain under the jurisdiction of the County to ensure compliance with the protective features of this Section and for enforcement purposes. 5. The use of fertilizers, herbicides, pesticides, or other chemical for vegetation management within critical aquifer recharge areas shall adhere to the best management practices to prevent impacts to water quality and water supply. Where the application of such chemicals covers five (5) or more acres, a mitigation plan shall be required pursuant the regulations listed below. 6. The following uses and development activities, when proposed in medium or high susceptibility critical aquifer recharge areas, have the potential to adversely affect ground water quality and/or quantity and may only be allowed subject to the County’s review and approval of a special hydrogeological assessment prepared by a qualified professional: a. Vehicle repair, servicing, and salvaging facilities, provided that the facility must be conducted over impermeable pads and within a covered structure capable of withstanding normally expected weather conditions. Chemicals used in the process of vehicle repair and servicing must be stored in a manner that protects them from weather and provides containment should leaks occur. Dry wells shall not be allowed on sites used for vehicle repair and servicing. Dry wells existing on the site prior to facility establishment must be abandoned using techniques approved by the Washington State Department of Ecology prior to commencement of the proposed activity; b. Use of reclaimed wastewater must be in accordance with adopted water or sewer comprehensive plans that have been approved by Ecology; c. Any other uses or development activity that the Administrator determines is likely to have a significant adverse impact on ground water quality or quantity, or on the recharge of the aquifer. The determination must be made based on credible scientific information;