08 ATTACHMENTS 1- 6 - Laserfiche WebLink

Ranch Road (Independence Drive to project site boundary) and Independence Drive (from Lund Ranch Road to Hopkins Way) with noise attenuating asphalt. If an updated noise analysis, prepared to the satisfaction of the Director of Community Development based on the Project's circulation system approved by the City, demonstrates that the noise increases to Lund Ranch Road, Independence Drive, and all neighborhood streets would be less than 4 dBA, the street resurfacing requirement would no longer apply. AIR QUALITY(SECTION 4.8) Significant Impact Impact 4.8-1: Construction activities associated with proposed construction would generate short-term emissions of criteria pollutants, including suspended and inhalable particulate matter and equipment exhaust emissions. Finding Changes or alterations have been required in, or incorporated into,the project which mitigate or avoid the significant effects on the environment. Facts in Support of Finding The City of Pleasanton has adopted the following measures which will reduce potential construction period air quality impacts to a less-than-significant level: Mitigation Measure 4.8-1: To limit the project's construction-related dust and criteria pollutant emissions,the following BAAQMD-recommended Basic Construction Mitigation Measures shall be included in the contractor specifications for the proposed project: a. All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas,and unpaved access roads) shall be watered two times per day. b. All haul trucks transporting soil, sand, or other loose material off-site shall be covered. c. 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. d. All vehicle speeds on unpaved roads shall be limited to 15 mph. e. 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. f. Idling times shall be minimized either by shutting equipment off when not in use or reducing the maximum idling time to 5 minutes(as required by the California airborne toxics control measure Title 13, Section 2485 of California Code of Regulations [CCR]). Clear signage shall be provided for construction workers at all access points. g. All construction equipment shall be maintained and properly tuned in accordance with manufacturer's specifications. All equipment shall be checked by a certified mechanic and determined to be running in proper condition prior to operation. h. A publicly visible sign with the telephone number and person to contact at the Lead Agency regarding dust complaints shall be posted at the site. This person shall respond and take corrective action within 48 hours. The Air District's phone number shall also be visible to ensure compliance with applicable regulations. Mitigation Measure 4.8-2: To reduce the project's construction-related NOx emissions,the following provisions shall be included in the contractor specifications for the proposed project: LUND RANCH 1I(PUD-25)RESIDENTIAL PROJECT 16 FINDINGS