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City of Pleasanton Recycled Water Project CEQA Addendum Table 3 Environmental Review of Proposed Project Changes Do Proposed Changes Are Prior Involve Any New Mitigation What were the New Circumstances Measures Where Impact(s) Environmental Significant Involving New Any New Sufficient for were Analyzed Impact or Significant Information Addressing in conclusions for Substantially Impacts Requiring Any New Prior the Original More or Substantially New Potential Environmental Proposed Severe More Severe Analysis or • Changes or Environmental Issue Area Documents. Project? Impacts? Impacts? Verification? Impacts? _ Revised Proposed Project therefore would not have any incrementally significant effects to agricultural resources as defined in CEQA Guideline section 15162(a). IS/MND Air Quality Pages 3-5 LTS/M No No No Yes through 3-10 IS/MND Discussion: As described in the IS/MND,construction of the Proposed Project would result in temporary, but not significant and unavoidable, impacts to air quality. However, the Bay Area Air Quality Management District's approach to analyses of construction impacts as noted in their BAAQMD CEQA Guidelines is to emphasize implementation of effective and comprehensive control measures rather than detailed quantification of emissions. As a result, the Proposed Project's construction related dust impacts would be reduced further with the implementation of dust effective dust control measures and would remain less than significant. IS/MND Mitigation Measures: • Mitigation Measure AIR-I: Basic Construction Mitigation Measures Recommended for All Projects • Mitigation Measure AIR-2: Additional Construction Mitigation Measures for Projects with Emissions Over the Thresholds Project Change Discussion: The proposed changes to the Proposed Project would have the same impacts to air quality as the Original Proposed Project. The addition of 720 feet or 0.1 mile of new pipeline would not result in any new impacts to air quality as was evaluated in the IS/MND. Also, the construction activities associated with the revised pipeline conveyance facilities would be substantially the same as they were originally described in the IS/MND as they would also be constructed within existing roadways, highly disturbed areas, and/or public right-of-ways. The Revised Proposed Project therefore would not have any incrementally significant air quality effects as defined in CEQA Guideline section 15162(a). IS/MND Biological Pages 3-11 LTS/M No No No Yes Resources through 3-15 IS/MND Discussion: As identified in the IS/MND,the Proposed Project/could have a substantial adverse effect,either directly or through habitat modifications, on species identified as a candidate, sensitive, or special-status species in local or regional plans,policies,or regulations, or by the CDFW or USFWS. Specifically, the construction activities of the Proposed Project have the potential to affect these species in various ways ranging from removal and/or disturbance. However, with the implementation of the following mitigation measures any impacts would be reduced to less than significant levels. IS/MND Mitigation Measures: • Mitigation Measure B10-I: Conduct Alameda Whipsnake Pre-construction Protocol Level Plant Surveys • Mitigation Measure B10-2: Conduct Breeding Surveys • Mitigation Measure B10-3: Conduct Nesting Surveys December 2014 3-4