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WMITMI U- 1 <br />1. Temporary culverts, ditches, catch basins, dams and settling ponds will <br />be installed in construction areas to maintain existing drainage flows <br />and collect excess water and sediment coming from construction sites. <br />Sediments collected will be disposed of at a Class II or Class III <br />disposal facility. <br />2. II reconstruction of the Santiago Creek Bridge supports is determined <br />to be necessary, construction activities will be limited to dry months. <br />Construction will be coordinated with the Orange County <br />Environmental Management Agency and will comply with their <br />requirements. Temporary drainage and erosion controls such as <br />sandbags, ditches, dams, culverts, catch basins and settling ponds will be <br />used, as needed. Collected sediments will be properly disposed of at a <br />Class II or Class III disposal facility. <br />10,701 41 <br />The widening of Bristol Street will necessitate the removal of various street <br />trees and ornamental landscaping adjacent to the existing roadway. The plant <br />species to be removed are not considered to possess any unique biological <br />value, except for the mature age and size of some specimens. The design of <br />the widened roadway incorporates substantial landscaping into the public right - <br />of-way, thereby providing an opportunity to establish an extensive and <br />consistent landscaping theme along the entire length of the street. There may <br />also be an opportunity to establish new landscaping on those sites which need <br />to be redesigned as a result of the project (i.e., commercial parking areas) or <br />which will be converted to a new use (i.e., full parcel takes). <br />Each of the three alternatives for widening would have similar impacts on <br />existing landscaping. The TSM and "no project" options would avoid any <br />possible impacts. <br />Mitigation Measures <br />1. A consistent theme will be developed and implemented for the <br />landscaping within the public right -of -way for Bristol Street as a part of <br />the street widening project. <br />2. Consideration will be given to the implementation of a Xeriscape <br />landscaping program. Such a program would involve the use of low- <br />IV -7 <br />75B -142 <br />