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San Joaquin County Department of Planning July 16, 1990 Page 5 5. Transportation -- The DEIR Summary states that there is no significant environmental impact regarding transportation. However, the Summary of Capacity Analysis, Table 3 . 4-2 , at page 62 , confirms that this project will drop the level of service (LOS) from "C" to "D" at the State Route 88 and Mackvill Road intersection for the p.m. peak. Given the information that the County of San Joaquin requires an LOS "D" or better for the minimally acceptable service level, it is unclear why there is not a mitigation measure in response to this impact. At page 65, the DEIR confirms that this degradation will result in an unacceptable LOS "D" level . However, at page 66, the DEIR represents that because the rate of production at the 7 processing facility would remain similar to current production rates, that the proposed project would continue to generate the same number of trips and therefore there are no increased impacts. This theory assumes an average of 40 daily trips with only four trips during the peak hours. However, there are not specifics which would allow an independent evaluation of the assumption. Given the significance that transportation has to the project and its impacts, it would appear important to objectively evaluate the scope of the existing facility and the anticipated scope of the "replacement facility" to determine whether or not it is actually "apples and apples. " In reviewing the Notice of Preparation (NOP) , the Department of Transportation indicated in their letter of March 16, 1990, that in order to adequately assess the traffic impacts of this project that a traffic analysis needs to be prepared regarding the impacts of large trucks on the structural and operational aspects of 8 Route 88 . In addition, the San Joaquin County Department of Public Works, in its March 1, 1990 written comment to the NOP, indicated that the EIR should include a traffic study and that a specific truck circulation/access plan should be provided. The DEIR does not appear to contain a specific truck circulation/access plan as requested. 6. Noise -- The DEIR confirms that State Route 88 is designated by the County as a "critical noise route. " Moreover, the noise section acknowledges that there is a residential area within 400 feet of the southern 9 fence line of the proposed quarry site and a zoned residential area (Oak. Ridge Estates) which is located approximately 300 feet from the southwestern fence line.