ARCHIVED REPORTS_DRAFT ENVIRONMENTAL IMPACT REPORT

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in designated areas on the WQCF property during nonwork hours. Pumping stations would most likely be constructed within new residential subdivisions, and pipelines would be constructed primarily within existing roadway right-of-way. Once constructed,pumping stations and pipelines would require minimal maintenance. During peak construction activities, 80 construction workers could commute to the WQCF site daily, generating approximately 160 one-way vehicle trips per day. In addition, 50 construction workers would commute to pipeline and pumping station sites on a daily basis,generating approximately 100 one-way vehicle trips per day (Richard,pers. comm.,2006a). To ensure public safety, standard construction practices would be employed as needed and would include temporary traffic controls such as signage,traffic control personnel, and cones. Standard construction practices would also include the selection of adequate staging areas for construction equipment, employee parking, and storage during construction activities. However,the increased number of vehicles accessing the WQCF site during construction could result in the queuing of vehicles on Yosemite Avenue. In addition,the increased number of vehicles associated with construction of the outfall pipeline, pumping stations, and pipelines for the wastewater collection system and recycled-water distribution system could temporarily block some roadways and result in the queuing of vehicles on Airport Way,Woodward Avenue, and other project area roadways. This could lead to an increase in the potential for vehicle accidents along these roadways and could temporarily increase response times for fire protection,police, and ambulance service vehicles along affected roadways. Because the increased number of vehicles associated with construction of the WQCF,outfall pipeline,pumping stations, and pipelines for the wastewater collection system and recycled-water distribution system could result in an increase in the potential for vehicle accidents and could temporarily increase response times for emergency service vehicles along these roadways,this impact would be potentially significant. 4.11.3 MITIGATION MEASURES No mitigation measures are necessary for the following less-than-significant impacts: 4.11-1: Increased Vehicle Trips or Traffic Congestion During Construction. 4.11-2: Potential Increase in Long-Term Operational Traffic. 4.11-3: Potential for Inadequate Parking Capacity. The following mitigation measure is recommended for the potentially significant impact of Impact 4.11-4. Mitigation Measure 4.11-4: Increase in Hazards because of a Design Feature. Before commencement of any construction activities,the City of Manteca Public Works Department will prepare and approve a construction management plan. The plan will identify the timing of construction and the timing of elements that would result in the full or partial blockage of local roadways. The plan will indicate where emergency vehicle access to project facilities would be provided, and will also outline the procedures for coordination with emergency service providers before project construction and road closures. The plan will also specify the measures that would be implemented to minimize traffic-related impacts, including construction parking during construction. These measures could include,but are not limited to,use of signage notifying travelers that they are entering a construction zone; and use of cones, flaggers, and guide vehicles to direct traffic through the construction zone. In addition,the plan will include, at a minimum,the following conditions: 1. Before beginning any construction activities,the City will determine the roadways that will receive project- related construction traffic for the transport of materials and equipment to the WQCF and those roadways in which new pipeline would be installed. EDAW Manteca WQCF and Collection System Master Plans EIR Transportation and Circulation 4-11.10 City of Manteca