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Timing: Inclusion of a note on Improvement Plans approved by CDD and MHCSD prior to approval of Final Maps. 28. Geotechnical Investigation Recommendations: The applicant shall follow the recommendations of the Services Report prepared by Kleinfelder, dated December 20. 2002, Timing: Inclusion of a note on Improvement Plans approved by CDD and MHCSD prior to approval of Final Maps, and the incorporation of all recommendations of the geotechnical engineering studies into site preparation and construction of each dwelling prior to approval of building permits. [San Joaquin County Development Title, Chapter 9-905] HAZARDS 29. Exposure to Pre-existing Hazardous Materials: Project grading, excavation, and other earth-moving activities at the project site and off-site infrastructure locations shall be monitored at the County s discretion by qualified hazardous materials experts(either qualified County staff or consultants)for signs of potential pesticide, hydrocarbon,or other contamination. If the County or consultants observe soil discoloration, noxious odors, or other signs of potential contamination, Phase II testing (excavation, laboratory testing of soil, possibly groundwater testing)shall be undertaken, and any recommendations made by the consultants shall be implemented. [MM 4.9-1] Timing: Monitoring during construction/grading activities. 30. Hazardous Materials-Existing Structures: Project construction activities at hazardous materials sites#3,which is the Mountain House wastewater treatment plant site, and 7 (identified in Figure 4.9-2 and Table 4.9-1 of the College Park Final EIR)and 7 shall occur only after any contamination that may exist at these sites has been fully remediated to the satisfaction of the County Environmental Health Department, the status of the sites has been changed to"no further action required" in the regulatory agency databases, and the facilities that are the source of any contamination have been removed in accordance with applicable regulations.The project developers may attempt to advance the above, if they desire, by conducting their own investigations of these sites in coordination with the property owners and regulatory agencies, and working with the regulatory agencies to accomplish the above. [Mitigation Measure 4.9-1] Timing: Improvement Plans shall be checked by CCD and County Environmental Health Department. Corrective actions shall taken prior to the recordation of a Final Map or the issuance of a grading permit for the affected area, whichever occurs first. 31. Hazardous Materials—Exposure to Pipeline Hazards: Public disclosure of the hazard posed by the Pipelines L401, L002, and CSDF 0499 shall be provided in the purchase and rental agreements for all habitable residential structures to be located within 249 feet of the PG&E/Chevron easement and shall appear in all subsequent purchase and rental agreements associated with these structures. [MM 4.9-5] Timing: Note included on Improvement Plans and Final Map. 32. Hazardous Materials—Exposure to Pipeline Hazards: No habitable residential structures (i.e., homes, apartments, granny flats, garages converted to living quarters, patio rooms, sun rooms)shall be permitted within 68 feet of the PG&E–Chevron pipeline that bisects the College Park site and contains Pipelines L401, L002, and CSDF 0499.Alternatively, no habitable residential structures as defined above shall be permitted within 68 feet of the nearest pipeline in the PG&E easement. Outdoor structures such as pools,fences, patios, and decks could be allowed within the no build zone, since occupancy would be less than 100%. Garages would be permitted as long as documentation accompanies the sale or rental 7