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PROPOSAL FOR SERVICES MOUNTAIN HOUSE NEIGHBORHOODS I&J INITIAL STUDYNITIGATED NEGATIVE DECLARATION in the vicinity(e.g.,Delta Community College, SP III, etc. depending on their status). ■ Develop appropriate mitigation measures related to potential land use conflicts or policy/code conflicts. B. Geology The geology/soils analyses will be completed by Mr. Joe Farrow,Environmental Scientist, of Questa Engineering,Inc.who will complete the following tasks: ■ Review published regional geological, soil,and fault related maps and reports. The geotechnical reports for Neighborhoods I and J prepared by the applicant will be reviewed and summarized in the report. Regional and project site geology will be presented as it pertains to geological hazards of the area. • Conduct a site geological reconnaissance in conjunction with the site visit for hydrologic conditions. ■ Determine soils and foundation conditions based on the expansive nature of site soils, geotechnical reports,if any, and existing drill log data. Of particular concern will be the potential for soil expansion. ■ Complete the impact analysis and determine potentially significant geological and geotechnical impacts to the project. In addition,evaluate the site suitability for construction of the proposed structures based on the characteristics of site soils and geology. ■ Identify feasible mitigation measures for all potentially significant and significant impacts. These may include avoidance of certain areas and/or special design measures. C. Hydrology We understand that the proposal for I and J at this time is to retain Dry Creek in its natural state and not to make any major alterations that would require permitting. This section will be completed by Mr. Syd Temple of Questa Engineering who will complete the following tasks: ■ Prepare the setting section of the IS/MND based upon existing regional and site-specific information and a site reconnaissance. Much of this information will be derived from previous Initial Study and EIR documents for the Mountain House community. ■ Analyze the hydrology/water quality impacts of the proposed project and alternatives in accordance with the following approach: — Complete a site hydrologic reconnaissance to include observation of existing surface drainage patterns and infrastructure. The amount of land disturbance and impervious surfaces created will be estimated and compared to existing conditions. This information will be used to develop corresponding estimates of the projected change in runoff characteristics for the developed conditions. Any additional drainage information provided by the applicant for the proposed project will be reviewed and incorporated into this analysis. The runoff impacts will be presented for the project site, and will cover both the effects on annual/seasonal runoff as well as peak storm flow. Any changes in runoff amounts will be analyzed with respect to the existing storm drainage infrastructure capacity. 07111/06