Environment & Sustainability | Environmentally Critical Areas
5. Requirements for Specific Uses and Activities.
of fertilizers applied to lawns and gardens to protect groundwater quality.
a. Commercial Vehicle Repair and Servicing.
c. Spreading or Injection of Storm Water or Reclaimed Water. Water reuse projects for reclaimed water and storm water are regulated in accordance with the adopted water, sewer or storm water comprehensive plans that have been approved by the Departments of Ecology and Health. Injection wells are prohibited in Class 1 and 2 CARA areas. Injection wells are allowed, subject to City review and approval, in Class 3 CARA areas provided injection wells shall comply with the requirements of Chapters 173-200 and 173-218 WAC and the Sammamish Municipal Code. d. Construction Activity. In all CARA classes, if construction vehicles will be refueled on a construction site and/ or the quantity of hazardous materials that will be used or stored on a site exceeds 20 gallons, exclusive of the quantity of hazardous materials contained in fuel or fluid reservoirs of construction vehicles, then persons obtaining construction permits shall provide information to the public works department regarding the types and quantities of hazardous materials that will be on site and then use BMPs to prevent and respond to spills. Construction site refueling must be conducted over impermeable pads, with containment curbs. The operator of the site shall immediately report to the City any spills and is responsible for complete recovery and cleanup. e. Fill Quality Standards and Imported Fill Source Statement. In all CARA classes, fill material shall not contain concentrations of contaminants that exceed
i. In all CARA classes, vehicle repair and servicing must be conducted over impermeable pads, with containment curbs, 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. ii. In all CARA classes, no dry wells shall 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 State Department of Ecology prior to commencement of the proposed activity.
b. Use of Pesticides, Herbicides, and Fertilizers.
i. Residential Use. In all CARA classes, application of household pesticides, herbicides, and fertilizers shall not exceed times, rates, concentrations and locations specified on the packaging. ii. Other Uses. In Class 1 and 2 CARA areas, proposed developments with maintained landscape areas greater than 10,000 square feet in area shall prepare an operations and maintenance manual using best management practices (BMPs) and integrated pest management (IPM) for fertilizer and pesticide/ herbicide applications. The BMPs shall include recommendations on the quantity, timing and type
92 | Title 21: Sammamish Development Code
Effective | January 1, 2022
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