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Item 6b PUD-97-01, Currin Construction Application for certification of the f'mal Supplemental Environmental Impact Report (SEIR) for Oak Tree Farm - Phase 3 project and removal of the geotechnical setback line, commonly referred to as the "Berlogar Line" from the existing Oak Tree Farm subdivision located on the west side of Foothill Road, south of the Castlewood country Club and across from the Verona Bridge. Zoning for the property is PUD - RDR / LDR (Planned Unit Development - Low Density Residential / Rural Density Residential) District. (SR 01:186) Brian Swirl presented the staff report. Ms. Dennis asked Mr. Swirl to briefly discuss for the audience the recommendations for further mitigation made by the Planning Commission. Mr. Swirl responded by saying when the Planning Commission reviewed the Supplemental Environmental Impact Report they raised three issues. The first had to do with the biological analysis that was in the original Supplemental Environmental Impact Report, which is now two years old. Since that time the Fish and Wildlife Service has designated much of Pleasanton Ridge as Critical Habitat Area for the Alameda Whip Snake, and the California Red-legged Frog. The Planning Commission felt that before any further subdivision occurred, which does not effect the geotechnical line issue which is before Council tonight, that a subsequent biological assessment of the site be undertaken and the results forwarded to the various State and Federal agencies. That mitigation measure has been incorporated as part of the recommendations of the final Supplemental Environmental Impact Report. The second issue had to do with the monitoring of groundwater and technical issues of what parameters go into the formula to determine the stability of a hillside. The Planning Commission was concerned that not enough evidence of groundwater levels was in place at the time the geotechnical studies were done. Staff is comfortable that in the "worse case" analysis that was prepared included an assumption of groundwater levels that are far higher than is likely to be found. The last modification had to do with the information that would be provided at the time the subsequent application for new subdivision comes back before the City. The Planning Commission asked for analysis of hillside movement and the subsequent impact to a critical strncmres, such as a hospital or police station, and required that any structures be built to withstand a high magnitude seismic event. They wanted this information in order to put the corresponding information for residential units in context of a safer structure. Rita Martin, 2860 Sanderling Drive, Fremont, is the owner of 8187 War Glory Place in Pleasanton. Her property is Lot Seven in Phase Two. The geotechnical setback line runs through her property and said she is in favor of having the line eliminated. David Glenn, 10 Tehan Canyon Road, Pleasanton, had concerns regarding the removal of the setback line. He discussed the difference in the amount of rainfall that occurs at his residence versus the amount in Pleasanton. He expressed concerns about Pleasanton City Council 5 08/07/01 Minutes