ARCHIVED REPORTS_DRAFT ENVIRONMENTAL IMPACT REPORT

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are based on the State CEQA Guidelines. The proposed project would result in significant transportation and circulation impacts if it would: ► cause an increase in traffic that is substantial in relation to the existing traffic load and capacity of the street system; ► exceed, either individually or cumulatively, an LOS standard established by the City or Caltrans for designated roads or highways; ► result in inadequate parking capacity; ► substantially increase hazards because of a design feature or incompatible uses; or ► result in inadequate emergency access. IMPACT ANALYSIS IMPACT Transportation and Circulation—Increased Vehicle Trips or Traffic Congestion During Construction. 4.11-1 The project would generate up to 180 one-way construction-related vehicle trips per day associated with construction of the proposed WQCF improvements and up to 114 one-way construction-related vehicle trips associated with construction of proposed pipelines and pumping stations over the course of the planning period. Construction-related WQCF,pipeline, and pumping station trips would represent approximately 1.6Y.-7%of existing traffic volumes on area roadways. These trips would be temporary and would cease once project construction is complete, would not substantially degrade existing levels of service, and would not increase congestion at nearby intersections. Therefore, the project's construction-related traffic impacts would be less than significant. The proposed facilities would be constructed over a period of at least 12 years. Construction activities would increase the number of vehicles traveling to and from the WQCF site and other project areas. Construction could require 80 workers at the WQCF and 50 workers along the wastewater collection system,outfall, and recycled- water distribution pipeline alignments and pumping station areas at any one time, although the exact number would depend on the final design of individual facilities. The exact timing of planned facility improvements is based on projected wastewater flows and loads,regulatory requirements, operational needs, and design criteria. Facility improvements would be phased in 10-year increments over the planning period. 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). Construction activities would require the delivery of construction vehicles, equipment, and materials during the construction period. Construction activities at the WQCF site would generate approximately 10 deliveries per day,resulting in 20 one-way delivery trips, and pipeline and pumping station construction activities would generate seven deliveries per day,resulting in 14 one-way delivery trips (Richard, pers. comm.,2006b). Overall,the project would generate up to 180 one-way construction-related vehicle trips per day associated with construction of the proposed WQCF improvements and up to 114 one-way construction-related vehicle trips associated with construction of proposed pipelines and pumping stations over the course of the planning period. Construction of WQCF and pipeline improvements could occur concurrently,but would be separated from one another such that a substantial increase in local roadway volumes would not occur. Construction-related WQCF trips would represent approximately 1.6%of existing traffic volumes on area roadways, and construction-related pipeline and pumping station trips would represent approximately 7%of existing traffic volumes on area roadways. These trips would not substantially degrade existing levels of service and would not increase Manteca WQCF and Collection System Master Plans EIR EDAW City of Manteca 4-11.7 Transportation and Circulation