Reso PC16-23 PC 0116 Reso CEQA - Sandpiper

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Section 4.0 — Environmental Setting and Discussion of Impacts Objectionable Odors The project would generate localized emissions of diesel exhaust during equipment operation and truck activity. These emissions may be noticeable from time to time by adjacent receptors. As discussed above, emissions of diesel exhaust would be temporary and localized, however, and are not likely to adversely affect people off-site such that they would result in confirmed odor complaints. (Less Than Significant Impact) Fugitive Dust The proposed project includes construction of a two-story modular classroom building, a Kindergarten modular classroom, a public restroom, and other various additions and improvements to the project site. Construction activities and grading operations would result in wind blowing over exposed earth and would generate exhaust emissions and fugitive particulate matter emissions that affect local and regional air quality. Impact AI11-1 The construction activities proposed by the project could result in short-term air quality impacts associated with dust generation. (Significant Impact) Mitigation Measure: The following measure is included in the project to minimize dust during construction activities. MM AIR -1 The BAAQMD CEQA Air Quality Guidelines includes the following list of basic construction mitigation measures that, upon implementation, would reduce project construction air quality impacts to a Iess than significant level: • All exposed surfaces (e.g., parking areas, staging areas, soil piles, graded areas, and unpaved access roads) shall be watered two times per day. • All haul trucks transporting soil, sand, or other loose material off-site shall be covered. • 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. • Building pads shall be laid as soon as possible after grading unless seeding or soil binders are used. • 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. • All construction equipment shall be maintained and properly tuned in accordance with manufacturer's specifications. All equipment shall be checked by a certified visible emissions evaluator. • Post a publicly visible sign with the telephone number and 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 City of Redwood City 27 Initial studylMitigated Negative Declaration Sandpiper Elementary School Facilities Expansion November 2016