SU0015263 - Laserfiche WebLink

Home Browse Search

San Joaquin Valley Air Pollution Control District Page 2 of 9 District Reference No : 20222572 December 19, 2022 1a) Construction Emissions The District recommends , to reduce impacts from construction - related diesel exhaust emissions , the Project should utilize the cleanest available off - road construction equipment , including the latest tier equipment . 2 ) Health Risk Screening /Assessment The County should evaluate the risk associated with the Project for sensitive receptors ( residences , businesses , hospitals , day -care facilities , health care facilities , etc . ) in the area and mitigate any potentially significant risk to help limit exposure of sensitive receptors to emissions . To determine potential health impacts on surrounding receptors ( residences , businesses , hospitals , day - care facilities , health care facilities , etc . ) a Prioritization and /or a Health Risk Assessment ( HRA ) should be performed for the Project . These health risk determinations should quantify and characterize potential Toxic Air Contaminants (TACs ) identified by the Office of Environmental Health Hazard Assessment/ California Air Resources Board ( OEHHA/GARB ) that pose- a present or potential hazard to human health . Health risk analyses should- include all potential air emissions from the project , which include emissions from construction of the project, including multi - year construction , as well as ongoing operational activities of the project . Note , two common sources of TACs can be attributed to diesel exhaust emitted from heavy - duty off - road earth moving equipment during construction , and from -ongoing operation of heavy - duty on - road trucks . Prioritization ( Screening Health Risk Assessment ) : A " Prioritization " is the recommended method for a conservative screening - level health risk assessment . The Prioritization should be performed using the California Air Pollution Control Officers Association ' s ( CAPCOA) methodology . The District recommends that a more refined analysis , in the fom of an HRA , be performed for any project resulting in a Prioritization score of 10 or greater . This is because the prioritization results are a conservative health risk representationn , while the detailed HRA provides a -more accurate health risk evaluation . To assist land use agencies and project proponents with Prioritization analyses , the District has created a prioritization calculator based on the aforementioned CAPCOA guidelines , which can be found here : http : //www . valleyair . org /busind /pto /emission factors/Criteria/Toxics/ Utilities/ PRIORI TIZATION - CALCULATOR . As