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Executive Summary TABLE ES-1 (CONTINUED) SUMMARY OF IMPACTS AND MITIGATION MEASURES Environmental Impact Mitigation Measures Level of Significance (Level of Significance Prior to Mitigation) After Mitigation d. Reclamation Activities. Following the completion of mining activities,site reclamation shall consist of preparing the site for cultivated agriculture.Soil tests and climatic studies of the reclaimed sites shall be systematically performed to ensure that soil compatibility is suitable for a production level present prior to mining.An evaluation of deep ripping the pit floor prior to the reintroduction of topsoil should be conducted to determine if such procedures would help to alleviate anticipated drainage limitations. In addition,the applicant shall minimize application of nitrogen and phosphorus fertilizers due to the close proximity of(shallow) groundwater.A complete agronomic evaluation shall be conducted prior to plantings to establish rates of fertilizer and herbicide applications. Transportation And Circulation 4.4.1 The project would generate additional vehicle trips, 4.4.1a Although the intersection of Koster and Blewett Roads is anticipated Less than Significant primarily haul truck traffic,on project area roadways.The to operate at acceptable levels of service with project implementation, added traffic would affect traffic operating conditions.This the intersection will require widening to accommodate truck turning would be a potentially significant impact. (PS) movements if access to the mining site is provided via Koster Road. Additionally,all-way stop control will be required to mitigate this intersection's cumulative year 2025 unacceptable levels of service impacts from Haul Route 1. If the County allows the use of this site access,the project sponsor would fund its fair share of this measure as a condition of approval of the project. Peters Engineering Group conducted a Fair-Share Percentage analysis as part of its Traffic Impact Study for this project.The fair share percentage provides a measure of the project's share of the anticipated future improvements to the transportation network. This analysis is contained in FEIR Appendix B. 4.4.1 b As a condition of approval,the applicant will be required to contribute an equitable share of the cost of the construction of a new interchange at SR 132 and Bird Road. Applicant's payment of its equitable share will be made through the creation of a CFD according to the County's June 6,2008 Acceptance of Petition from the Vernalis Producers Group to Form a Community Facilities District,or other similar financing mechanism.Caltrans has approved a Project Study Report for an interchange to replace the existing intersection. The proposed interchange is expected to mitigate the cumulative impacts to the intersection(for Haul Route 1). Comex Vernalis Quant'Mining and Redamatlon Project ES-6 ESA 1203015 Final Environmental Impact Report June 2008