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STONERIDGE DRIVE SPECIFIC PLAN AMENDMENT /STAPLES RANCH PROJECT MITIGATION MONITORING AND REPORTING PLAN [May 20101 Date Completed/ Mitigation Measures/Improvement Measures Monitoring Action Responsibility'' Timing Signature health risk assessment is conducted, conduct a health risk assessment for inclusion of any Project Developer for Date residential units within 500 feet of the closest ultimate travel lane adjacent recommended the senior continuing measures, such as care community. to the Staples Ranch site assuming the closest edge of the closest travel filtration systems; field lane would shift south 32 feet by the Staples Ranch site. Prior to the inspections. Field inspections: Field inspections: approval of final site design for the senior continuing care community, a City of Pleasanton Prior to health risk assessment (HRA) shall be prepared by a qualified air quality Building and Safety occupancy. Division. consultant that shall demonstrate that proposed residential uses within 500 feet of I -580 on the Staples Ranch site would not be significantly exposed to diesel particulate matter. Typically the minimum level of significance provided by the BAAQMD for stationary sources is a cancer risk of 10 in a million. However, risks from mobile sources are often acceptable at higher levels, and therefore the significance thresholds would be established by the HRA in consultation with the City. The HRA shall take into consideration the ultimate widening of I -580, and will assume that the closest travel lane by the Staples Ranch site will shift south by 32 feet, if Caltrans has not adopted its plans by the time the health risk assessment is conducted. If residents are proposed for areas where exposure could exceed the established threshold, then the HRA shall make recommendations for reducing exposure to on -site residents. Recommendations could include increasing the distance between residents and the freeway, modification to the location and height of intakes to the ventilation system, addition of HEPA an filtration systems, or reducing outdoor use areas, such as patio areas and balconies. Biological Resources BIO -2.1 Conduct preconstruction surveys for CRLF. To avoid and Verify that a Contracting of Survey m preconstruction survey qualified biologist for construction area: Signature nimize impact to the CRLF, prior to bridge construction or activities for California red survey; notification to No more than 48 within the Arroyo Mocho channel or its riparian vegetation, a qualified legged frog (CRLF) USFWS and City of hours prior to Title wildlife biologist with the required USFWS permits shall be retained by was conducted; Pleasanton bridge 7