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Resolution No. 2756 February 12, 1986 Page 2 a.7 Fact. The City has formed an Environmental Monitoring Commission to monitor the air quality within Pleasanton, and Condition 18 requires development to cease if primary pollutant concentrations violate standards. a.8 Finding. The No Project Alternative, the Reduced Intensity Alternative, and the Mixed Use Alternative, which could partially mitigate the significant effects on air quality, are infeasible. a.9 Fact. See Section XII (infeasibility of alternatives). V. Noise. A. Significant Effect. Increased noise levels along roadways in residential areas of North Pleasanton which could potentially exceed the City's maximum noise level guidelines for sensitive residential receptors. a.l Finding. Mitigation measures to achieve acceptable residential noise level incorporated into the Project will substantially lessen the effect. a.2 Fact. Condition 19 requires Developer to implement an acoustical monitoring program to monitor noise levels at certain specific areas of the Project and to implement a noise abatement program, including installation of soundwalls and residential installation, to ensure City standards are met. a.3 Fact. Acoustical analysis at Muirwood Park to determine mitigation measures to meet federal guidelines will be done and noise mitigation measures taken, if needed. B. Significant Effect. Generation of truck noise. b.l Finding. Mitigation measures incorporated into the Project to reduce generation of truck noise will substantially lessen this effect. b.2 Fact. Condition 20 requires Developer to relocate trucks to routes within the site. C. Significant Effect. Noise levels along I-580 and I-680 will exceed City and FHWA standards in some instances. c.l Findinq. Exterior mitigation measures to meet local standards would conflict with the I-580 Scenic Highway Plan. c.2 Fact. The I-580 Scenic Highway Plan seeks retention of vistas while allowing economically