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DWR Project Level GHG Emissions Reduction Measures <br />The following list of Best Management Practices (BMPs) for DWR construction and <br />maintenance activities are recommended to reduce GHG emissions from construction <br />projects. All projects that rely on the GGERP must implement the BMPs as part of the <br />project or explain why the measures that have not been incorporated do not apply to the <br />project. Variances from the standard BMPs that have been requested for this project are <br />described below. <br />BMP 1. Evaluate project characteristics, including location, project work flow, site <br />conditions, and equipment performance requirements, to determine whether <br />specifications of the use of equipment with repowered engines, electric drive trains, <br />or other high efficiency technologies are appropriate and feasible for the project or <br />specific elements of the project. <br />BMP 2. Evaluate the feasibility and efficacy of performing on-site material hauling with <br />trucks equipped with on-road engines. <br />Variance requested: Material hauling is not required for the proposed soil <br />investigations; therefore, this BMP does not apply. <br />BMP 3. Ensure that all feasible avenues have been explored for providing an electrical <br />service drop to the construction site for temporary construction power. When <br />generators must be used, use alternative fuels, such as propane or solar, to power <br />generators to the maximum extent feasible. <br /> Variance requested: Electrical service drops are not feasible for this project as <br />work willbe conducted at each site for no more than 15 days; therefore, this <br />BMP does not apply. <br />BMP 4. Evaluate the feasibility and efficacy of producing concrete on-site and specify <br />that batch plants be set up on-site or as close to the site as possible. <br />Variance requested: Concrete production is not required for the proposed soil <br />investigations; therefore, this BMP does not apply. <br />BMP 5. Evaluate the performance requirements for concrete used on the project and <br />specify concrete mix designs that minimize GHG emissions from cement production and <br />curing while preserving all required performance characteristics. <br />Variance requested: Concrete is not required for the proposed soil investigations. <br />Cement-bentonite mixture used to grout boreholes conforms to industry standards. <br />BMP 6. Limit deliveries of materials and equipment to the site to off peak traffic <br />congestion hours.