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C 19: The commenter should refer to the revised biological study contained in Volume II, Section 4.7. Mitigation measures have been recommended based upon survey data not available early in the EIR preparation. C20: Comments noted. The terms used in the project description to describe the various aspects of the development were provided in the applicant's development plan. Mitigations recommended in the biological study limit the uses permitted in the "preservation" areas so that they can truly function as preservation areas. C21: Opinion noted. C22: During preparation of the DEIR, it was unknown to the EIR authors of this offer. The discussion on page 4.1-5 merely reiterates the point that the County has not provided implementation measures to purchase the property. If other funding sources are available,these should be identified. However,it is not the role of the EIR to identify potential funding sources. C23: Comments noted. Commenter should refer to revised biological study in the Final EIR. C24: Refer to revised biological study in Volume II, Section 4.7. The biological study was extended at the beginning of March, 1992 to obtain field data. C25- C30: Commenter should refer to the revised biological study in Volume II, Section 4.7. C31: Although widening the paved road width from 18-feet to 20-feet would increase the total amount of paved road area, the improvement could be accommodated within the original right-of-way width of 28 feet by reducing gravel shoulder widths from five feet to four feet. Also please refer to page 4.2-15,Impact and Mitigation Measure 4.2-1 for more detailed information. C32: The DEIR indicates the need to determine the effects of trucks on the haul route roads as identified on page 4.2-18 and in Appendix H, and that the program be coordinated with the County's Public Works Department. It is presumed the details of the nature and scope of such studies would be coordinated with the County as part of the development process. C33: In the water balance analysis the contribution to groundwater recharge is acknowledged. However, the EIR authors disagree that this volume of recharge would be an increase over current conditions. The proposed enlargement and management of the lakes call for compacting and sealing the lower portions of the lake to minimize seepage losses and to retain as much water in the lakes as possible. The current conditions and operation of the lakes allow for natural seepage losses to occur; and only excess water remaining in the spring is pumped into the Mokelumne River. Rough calculations indicate that considerably more recharge is likely to occur through the existing natural (unsealed) lake conditions during three or four winter months, than through the proposed compacted, sealed lake bottoms over the course of a full year. Detailed records on the historic volumes of water pumped from Tracy Lakes during the springtime could be used to refine the water balance analysis for the existing conditions to resolve the difference of opinion between the EIR authors and the commenter. C34: Erosion from grading of the golf course is not considered negligible. The inherent stochastic variations in timing of rainfall mandate that caution and a sound erosion control plan be followed. III-166