Environmentally Critical Areas | Environment & Sustainability
iv. Location of other critical areas, including surface waters, within 1,300 feet of the project area; v. Historic hydrogeologic data for the area to be affected by the proposed activity; vi. Best management practices (BMPs) and integrated pest management (IPM) proposed to be used; and vii. Discussion of the effects of the proposed project on the groundwater quality and quantity, including: a) Predictive evaluation of groundwater withdrawal and recharge effects on nearby wells and surface water features; b) Predictive evaluation of contaminant transport based on potential releases to groundwater; and
i. Criteria used to determine the need for site monitoring shall include, but not be limited to, the proximity of the facility to production or monitoring wells, the type and quantity of hazardous materials on site, and whether or not the hazardous materials are stored in underground vessels. ii. The City may employ an outside consultant at the applicant’s expense to review the monitoring plan and analysis, to ensure that the monitoring plan is followed, and that corrective actions are completed. 4. Prohibited Uses. Where land uses or materials prohibited in this section are allowed in the Table of Permitted Land Uses (Chapter 21.05 SDC), this section shall control and the use shall be prohibited. a. Table 21.03.020X.4.a identifies land uses and materials prohibited in Class 1, 2 and 3 CARAs for new uses; and b. Table 21.03.020X.4.b identifies land uses and materials that should be discontinued, removed and decommissioned where existing in Class 1, 2 and 3 CARAs. The City shall require discontinuation, removal and decommissioning of these uses from Class 1, 2 and 3 CARAs at the time of development and redevelopment, in proportion to the degree and nature of the proposal.
c) Predictive evaluation of changes in the infiltration/recharge rate.
d. A spill containment and response plan, when required by subsection 3.b. of this section, is required to identify equipment and/or structures that could fail and shall include provisions for inspection as required by the applicable state regulations, repair and replacement of structures and equipment that could fail. e. A groundwater monitoring plan, when required by subsection 3.b. of this section, may be required to monitor quality and quantity of groundwater, surface water runoff, and/or site soils. The City may require the owner of a facility to install one or more groundwater monitoring wells to accommodate the required groundwater monitoring.
Effective | January 1, 2022
Title 21: Sammamish Development Code | 89
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