BRODY, TODD D.B.A. SYNECTECOLOGY 1-2002

Home Browse Search

.. .' Construction Impacts At this time, the project serves as a pilot program until the results of the analysis can be determined. If the project were to become a permanent fixture, those streets designated for closure would in all probability receive minor construction work such as the construction of a cul-de-sac. This construction would then entail the use of heavy equipment. Noise-related impacts from project construction will be identified using accepted noise criteria applicable to..construction equipment regardless of whether or not this construction were to actually occur. This would then save the City the task of reexamining this potentially significant impact at U a later-date if-the project is-tO prOceed.-uEmphasi"s'will be-On--- identifying the impacts to those nearby sensitive receptors identified during the on-site noise survey. While haul trucks and worker vehicles will add marginally to local roadway noise, the project is of limited size and duration and any noise increase from these vehicles will not be significant. Mitigation Measures Mitigation will be proposed for any significant impacts. Potential mitigation for construction includes limitations on construction hours, placement of stationary sources as far from sensitive receptors as feasible, and use of proper mufflers. Operational mitigation, if necessary, could include the use sound walls, structural modifications to impacted receptors, reductions in speed limits, and restrictions on heavy truck use. The amount of attenuation afforded by these measures will vary with the types of equipment used, the operating conditions, the type of terrain, and the proximity to sensitive receptors. Residual impact after mitigation will be compared with the impact criteria to assess the adequacy of the proposed mitigation measures. SCHEDULING As per our conversation, Synectecology will work with the City to attain their target deadlines. Our noise report would be submitted for City review within 4 weeks of receiving the traffic count data. A final document shall be submitted within 2 weeks time of receiving comments. DELIVERABLES AND BUDGETING " At the completion of the noise analysis, the study shall be incorporated into a "stand alone" document and the City of Santa Ana will be presented with one draft hard copy and one copy in MSWord format. The document will be prepared in quasi-MND format for direct inclusion in any subsequent CEQA'-documentation which may become necessary prior to final project acceptance. Upon receipt of City comments, the draft document shall be revised, a~ necessary, and a final document issued; also in hard copy and MSWord format. 2