10A Public Hearings - Laserfiche WebLink

Home

City of San Leandro 14143-14273 Washington Avenue Warehouse Project 32 1. All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. 2. All haul trucks transporting soil, sand, or other loose material off-site shall be covered. 3. All visible mud or dirt track-out onto adjacent public roads shall be removed using wet power vacuum street sweepers at least once per day. The use of dry power sweeping is prohibited. 4. All vehicle speeds on unpaved roads shall be limited to 15 mph. 5. All roadways, driveways, and sidewalks to be paved shall be completed as soon as possible. Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used. 6. All excavation, grading, and/or demolition activities shall be suspended when average wind speeds exceed 20 mph. 7. All trucks and equipment, including their tires, shall be washed off prior to leaving the site. 8. Unpaved roads providing access to sites located 100 feet or further from a paved road shall be treated with a 6- to 12-inch compacted layer of wood chips, mulch, or gravel. 9. Publicly visible signs shall be posted with the telephone number and name of the person to contact at the lead agency regarding dust complaints. This person shall respond and take corrective action within 48 hours. The Air District’s General Air Pollution Complaints number shall also be visible to ensure compliance with applicable regulations. In the absence of a qualified Community Risk Reduction Plan,2 BAAQMD has established the following Thresholds of Significance for local community risks and hazards associated with TACs and PM2.5 for assessing individual source impacts at a local level. Impacts would be significant if: ▪ The project would result in an increased cancer risk of > 10 in one million ▪ The project would result in an increased non-cancer (i.e., Chronic or Acute) risk of > 1.0 Hazard Index ▪ The project would result in an ambient PM2.5 concentration increase of > 0.3 µg/m3 annual average A project would be considered to have a cumulatively considerable impact if the aggregate total of current and proposed TAC sources within a 1,000 feet radius of the project fence-line in addition to the project would exceed the Cumulative Thresholds of Significance. Impacts would be significant if: ▪ The project would result in an increased cancer risk of > 100 in one million ▪ The project would result in an increased non-cancer (i.e., Chronic or Acute) risk of > 10 Hazard Index ▪ The project would result in an ambient PM2.5 concentration increase of > 0.8 µg/m3 annual average Excess cancer risks are defined as those occurring in excess of or above and beyond those risks that would normally be associated with a location or activity if toxic pollutants were not present. Non- 2 The goal of a Community Risk Reduction Plan is to bring TAC and PM2.5 concentrations for the entire community covered by the Plan down to acceptable levels as identified by the local jurisdiction and approved by the Air District. This approach provides local agencies a proactive alternative to addressing communities with high levels of risk on a project-by-project approach. The Air District has developed detailed guidelines for preparing Community Risk Reduction Plans which can be found on the Air District web site at: https://www.baaqmd.gov/~/media/files/planning-and-research/ceqa/draft_community_risk_reduction_plan_guidelines_may_2010.pdf