PC-99-80 - Laserfiche WebLink

b. Implementation of a TSMP is required by Mitigation Measure J9b and implemented through Master PUD Condition 64 and the September 1998 Specific Plan Transportation Element, Transit/Transportation Systems Management Objective and will achieve anticipated trip generation rates, construct bus pull-out areas, and accommodate transit services on Project streets. This program will assist in minimizing the Project's traffic impacts. I. AIR QUALITY 1. Generation of Construction-Related Emissions. Impact K 1. Construction activities during site specific grading would generate dust and PM-10, creating the potential for nuisance. Mitil!ation Measure: Measure K 1. Prepare and implement a dust control plan for the construction period, which would control dust during all phases of construction, to be reviewed and approved by the City Public Works Department prior to development activity on the site. Findinl!: Changes or alterations have been required in, or incorporated into, the Project which avoid or substantially lessen the significant environmental effect identified in the Final EIR to a less than significant level. Facts in Suooort of Findinl!: The impact will be avoided or reduced based on the following: a. Construction air quality impacts result from dust generated by equipment and vehicles. Although short-term impacts may be considered significant, these impacts will be temporary. The dust control plan will include the following basic control measures: (1) water all active construction areas at least twice daily or as necessary to minimize dust; (2) pave, apply water three times daily, or apply (non-toxic) soil stabilizers on all unpaved access roads, parking areas and staging areas at construction sites; (3) sweep daily (with water sweepers) all paved access roads, parking areas and staging areas at construction sites or as necessary to minimize dust; (4) sweep streets daily with water sweepers if visible soil material is carried onto adjacent public streets; (5) hydroseed or apply (non-toxic) soil stabilizers to inactive construction areas (previously-graded areas inactive for 10 days or more); (6) enclose, cover, water twice daily or apply (non-toxic) soil binders to exposed stockpiles (dirt, sand, etc.); (7) limit traffic speeds on unpaved roads to 15 mph; (8) install sandbags or other erosion control measures to prevent silt runoff to public roadways; (9) replant vegetation in disturbed areas as quickly as possible; (10) install wheel washers for all exiting trucks, or wash off the tires or tracks of all trucks and equipment leaving the site; (11) install windbreaks, or plant trees/vegetative wind breaks at windward side(s) of construction areas; and (12) suspend excavation and grading activity when winds (instantaneous gusts) exceed 25 mph, and limit the area subject to excavation, grading and other construction activity at anyone time. SF:FMP\AGR\WEX\61IJI664.2 062499 A-35 WEX-66083