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East Gateway Planned Action OrdinanceExhibit B Ordinance 1001 Mitigation Measures A. Air quality 1. Dust suppression techniques shall be incorporated in grading and construction activities. Water trucks will be kept on site at all times during construction. 2. Any proposed uses that are considered major employers as defined by Section 70.94.524 RCW shall develop and implement programs to reduce drive -alone commute trips and encourage use of alternative transportation modes. 3. Construction vehicles and delivery trucks shall be routed and scheduled to avoid peak travel times and shall not be left idling on site in order to reduce the amount of drive time and vehicle emissions. B. Cultural resources 1. If an archaeological resource is discovered during construction site earthwork, all activity in the immediate vicinity of the find shall cease pending notification of the Nisqually Indian Tribe and the Department of Archaeology and Historic Preservation (DAHP). Consultation with DAHP shall take place and, if deemed necessary after consultation with DAHP, a qualified archaeologist will be retained by the applicant to assess the significance of the find and develop a preservation plan which shall be implemented by the applicant. C Mazama pocket gopher 1. Prior to construction of any individual development proposal within the planned action area, a critical areas report shall be prepared to the standards of the Yelm Critical Areas Code. If gophers are present on the site, a mitigation plan shall be prepared pursuant to the Critical Areas Code that is approved by the City and implemented by the applicant. 2. Compliance with Yelm's requirements under the Critical Areas Code does not ensure compliance with the provisions of the Endangered Species Act, as enforced by the US Fish and Wildlife Service. D. Transportation 1. Driveways shall be designed to accommodate the ultimate configuration of the coordinated conceptual access plan, but based on a Site Circulation Study, may be constructed to a lesser configuration with property and frontage improvement setbacks to accommodate the ultimate configuration. 2. Each development within the project area shall design internal site circulation systems to accommodate connections to adjacent properties. Internal connections shall be designed to accommodate through- traffic within the project area between individual parcels. 3. Prior to any development approval within the planned action area, a conceptual design for a two -lane modern roundabout at the intersection of Grove Road and Yelm Avenue (SR 507) shall be prepared by the applicant and reviewed and approved by the City of Yelm and the Washington State Department of Transportation. The design shall include a construction sequencing plan for the construction of a single lane roundabout within the full design and shall specify the conditions under which a two lane roundabout is required. 4. Prior to occupancy of any development on parcels located south of Yelm Avenue and west of the extension of the Yelm Loop (SR 510 Alt) that provide access to Yelm Avenue (SR 507) and creates fewer than 25 peak PM trips, the southbound approach lanes of the Grove Road /Yelm Avenue intersection shall be constructed. The intersection shall be controlled by stop signs on the north and south approaches until a roundabout is triggered. 5. Prior to occupancy of any development on parcels located south of Yelm Avenue and west of the extension of the Yelm Loop (SR 510 Alt) that provide access to Yelm Avenue (SR 507) and creates 25 or more peak PM trips the single lane roundabout shall be constructed. 6. Prior to any development approval within the planned action area, a conceptual design for the completion of the Walmart Boulevard (SR 510 Alt) and Yelm Avenue (SR 507) intersection shall be prepared by the applicant and approved by the City of Yelm and the Washington State Department of Transportation. The design shall include a construction sequencing plan for the construction of: a. A new northbound approach with a dedicated left turn lane and a combined through /right turn lane b. Improving the southbound approach with a dedicated left turn lane, a dedicated through lane, and a dedicated right turn lane. C. Improving the westbound approach with a dedicated left turn lane, a dedicated through lane and a combined through /right turn lane. d. Improving the eastbound approach with a dedicated left turn lane, a dedicated through lane and a combined through /right turn lane. 7. Any development approval within the planned action area shall require the dedication of any necessary right of way for a single lane roundabout and the initial intersection improvement at Yelm Avenue (SR 507) and Walmart Boulevard (SR 510 Alt). No buildings, parking, or other impediments shall be permitted within the future right of way for the two lane roundabout at Grove Road and the full intersection improvements of Yelm Avenue (SR 507) and Walmart Boulevard (SR 510 Alt).