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Prior to approval of any discretionary application, the developer shall: 1. Identify and mitigate traffic impacts, including those adjacent to the 1-580 and 1-205/Patterson Pass Road interchanges and have Caltrans approval on a Project Study Report; and 2. Submit an infrastructure plan for provision of water and wastewater treatment, with commitment(s) from service providers. Caltrans has determined that a Project Study Report(PSR) is not required at this time. However,.a PSR will be required in the future, and the developer is required to pay his fair share of the future PSR (see Traffic). The Special Purpose Plan Amendment includes an infrastructure plan for water and wastewater treatment. The applicant has entered into an agreement with the City of Tracy for provision of those services. Traffic A traffic study prepared by Korve Engineering and reviewed by the Department of Public Works indicated that the project will generate up to 4,714 passenger car equivalent daily trips. The study concluded that the traffic generated by the project would not impact any intersections. All nearby intersections would continue to operate at Level of Service (LOS) C or better, and all freeway segments would continue to experience LOS D or better. The analysis then examined impacts on intersections and roadways assuming year 2020 cumulative development conditions. The study identified cumulative impacts, mitigation measures, and the applicant's fair share of those mitigation measures. The Department of Public Works recommends that the applicant shall comply with all the mitigation measures identified in the Traffic Study by Korve Engineering dated July 14, 2000. The applicant shall pay his fair share for roadway improvements as identified in Table 6 of the Traffic Study prior to the release of building permits. The fair share amounts to$355,920.00. (See the attached Public Works Conditions of Approval.) As noted above, Caltrans has asked that the applicant be required to pay his fair share toward a PSR and any improvements that are needed to the 1-580/Patterson Pass Road and 1-205/Mountain House interchanges when required by the County. The Department of Public Works recommends that the applicant pay his fair share of the PSR for the Interstate 205/Mountain House Parkway and the Interstate 580/Mountain House Parkway interchanges. The fair share of 11 percent amounts to $8,800.00. Improvements needed to the interchanges, based on a 20-year forecast, were identified in the July 14, 2000, Korve study. The applicant's fair share of the cost of those improvements are included in the $355,920.00 figure discussed above. During review of the project,the Department of Public Works received specific critical comments(prepared by Optrans traffic consultants) from the Mountain House Community Services District regarding the County's traffic study. Those comments and Public Works'responses are attached to the August 25,2000, letter from the Department of Public Works. Storm Drainage A storm drainage study was prepared by Kier and Wright Engineering and reviewed by Public Works: A portion of the existing business park uses an existing 20-acre-foot detention basin. The ADT Auto Auction site plan proposes to construct a series of ten-foot-wide vegetative swales that would drain the project parking areas into the detention basin. The natural swale of Patterson Run and Drainage"A" ' would drain into Area"C"(Figure 11). A third natural drainage in the northern part of the site(Drainage "B")would not be modified and would not accommodate any storm waters from the developed project. in order to maintain the existing peak flows in the drainage swale after the ADT auto auction project has been completed, the existing detention basin will be increased from 20 acre-feet(AF)to 54 AF. San Joaquin County PP-99-2, DA-90-11Tracy Industrial Community Development Page 5