PC-98-31 - Laserfiche WebLink

ing the first significant storm event of the rainy season each year ("frrst flush"). In addition, surface water samples shall be collected from creeks that drain the proposed Golf Course. Groundwater samples shall be collected from shallow monitoring wells installed in areas of high groundwater conditions, particularly in alluvial sediments along the seasonal creeks and near detention basins. . . Establishment of sampling parameters, protocols. and frequency. The plan shall establish the compounds to be analyzed based on the uses of the site. For example, samples collected from areas which drain the Golf Course shall be analyzed for the specific pesticide and herbicide' compounds used on the course. The plan shall also establish the required sampling protocols and frequency for each sampling event so that consistent high quality data can be compiled. . Establishment of criteria for data analysis and review. The plan shall establish criteria for evalu- ating the data (e.g., regulatory threshold values for pollutants). Once collected, the data shall be analyzed by a. qualified professional and compared to the established criteria to evaluate potential impacts. If water quality degradation is identified, the qualified professional shall recommend actions to mitigate the impact. Reports summarizing the analytical data and conclusions shall be submitted to the City of Pleasant on for review and approval on an annual basis. Timing: Prior to issuance of grading permits. H. GEOLOGY AND SOILS HI. Individual development projects proposed within the Specific Plan Area shall be subject to prepa- ration of a soils study as required by the Pleasanton General Plan (Public Safety Element, Policy 5). Design of such projects are required, under the Plan, to incorporate all recommendations of the City's consulting engineer. Timing: Prior to issuance of building permits. H2. Purchasers of new residential units shall be provided with a copy of an earthquake hazards informa- tion document that describes !he pOlential for strong groundshaking at the site, potential effects of such groundshaking, and earthquake preparedness procedures. Timing: Prior to (l) completion of sale or (2) occupancy (for non-owner-occupied buildings). H3. The developer shall prepare an earthquake preparedness and emergency response plan for each community use facility, including the proposed Golf Course clubhouse. Timing: Prior to occupancy of new development permitted by the Specific Plan. H4. For areas with slopes steeper than 20 percent or within or adjacent to existing landslides, a slope stability analysis (addressing static and pseudo-static conditions) shall be prepared by a licensed Civil Engineer and include the appropriate recommendations from the approved geotechnical report for any proposed residential development or roadway construction. These geotechnical reports shall provide recommendations for control of surface drainage, adequate groundwater drainage, and slide mass removal or stabilization, if necessary. The analysis shall be supported by investigation of site-specific conditions that shall include but not be limited to: 13