Reso13 PC 13-16 2898 PC Reso Recommending Stanford EIR Certification

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Mitigation: Mitigation 8-3. Buffer the child care center ftom existinc and planned ernission sources, and include praject features to reduce TAC ar�d PMz.s exposure from a�r pollutant sources--which snclude U5 101 trafFic, the Tyco Thermal Controls facility, and existing and proposed generators--through the follawing measures: 1. When construction of a child care center is propased, conduct site-specific detailed analysis to determine the child care cer�ter's TAC and PM2.s ex�osures. The analysis shauld be utilized to gui�e final design and siting of the child care facility and determine the le�el of ventilation/ filtration necessary to ensure that indoor concentrations will be less-than-sign�cant. 2. E�aluate and appropriately buffer the child care center from existing diesel generatars at khe Stanford Medicine Outpatient Center and 550 Broadway, and any ather sources near the Precise Plan area ident�ed by �AAQMD at the time such analysis is undertaken. 3. Ensure that the ventilation�ftration systems in the child care center result in ar� indoor cancer risk of less tha� 10 ir� one miliion and annual PMz.s concentrations af less than 0.3 �glm3 from any single soufce or less than �00 ir� one million cancer risk and ann�al PMZ.S cancentrations of less than 0.8 �glrn3 from cumulative resources. 4. Cansider tiered plarttings of trees between #he child care center ar�d air poliutant sources such as the freeway, exRs#ing and planned generators, and the Tyca Thermal Controls facility. 5. A�aid location of any truck loading zones near the child care facility. 6. With respect to outdoar use areas for fhe child care center, impacts from L!S 101 shall be mitigated by placing the child care center more than 700 feet from the freeway. Based on currently available information, the impact from Tyco Thermal Cor�trols cannot be mitigated to a less-than-significant level because the ele�ated PM2.s levels from the facility extend across the ent�re project development site. If the Tyco Thermal Controls facility rem�ins in operation at the time of canstr�ction of the child care center, and if the detailed analysis described abov� shows PM2.s le�els exceeding the a.3 {�glm3 standard throughout the de�efapment site, construction and operation of a child care center on the development site shall be prohibited. If the detailed analysis shows that some or all of the development site wou�d be expased to PM�.S levels lower than 0.3 Ng/m3, the outdoor use area for the child care center shail be si#ed in ane of those lacations. Finding: Implementatio� of Mitigation 8-3 wauld reduce community fisk and hazard impacts to a less-tharrsignificant Isvel. Facts in Support of Finding: Implementation of Mitigation 8-3 would reduce the praject's corrtmunity risk and hazard impacts to a less-than-significant level by buffering the proposed child care center from existing and planned emission sources and including project features to reduce exposure from air pollutant sources, as described and quantified in Draft EIR chapter 8 (Air Qualityj on pages $-1 ATTY/RE50.2898/PC RE50 RECONkMENQING 57ANFORD EIR CfRTIFICATION REV:08-15-13 VR Page 13 of 56