Laserfiche WebLink
Less Than <br /> Significant After No River Reduced Depth Alternate Quarry <br /> Potentially Significant Impacts Suggested Mitigation Measures Mitigation? No Project Crossing of Excavation Site <br /> Biology <br /> Removal of riparian woodland and mature oak The route of the access road and bridge through Yes No Impact No Impact Similar Impact Similar Impact <br /> trees would occur as a result of the proposed the riparian corridor shall be adjusted to avoid <br /> access road and bridge crossing relocation. removal of valley oak and elderberry. If these <br /> species cannot be avoided,a survey shall be <br /> conducted by a qualified arborist or biologist <br /> once the final alignment of the bridge and <br /> access road has been staked. Each valley oak <br /> that will be removed shall be mitigated for at a <br /> rate of five to one. These replacement trees <br /> shall be one to five gallon trees planted along <br /> the Mokelumne River, in the area where the <br /> existing bridge will be removed,to enhance the <br /> riparian vegetation in that area. Any elderberry <br /> that would be impacted by the bridge and access <br /> road shall be relocated within an unim pactcd <br /> area of the riparian corridor according to <br /> USFWS specification. <br /> No excavation or other activity shall occur <br /> within five feet of the dripline of the trees that <br /> will not be removed. <br /> Prior to construction or grading, bright colored <br /> fencing shall be provided around trees at a <br /> distance of five feet from the dripline in areas <br /> of construction. <br /> Prior to construction of the access road and <br /> bridge,a survey shall be conducted by a <br /> qualified wildlife biologist to identify any <br /> raptor nests in the riparian corridor within 100 <br /> feet of the area to be disturbed. If raptor nests <br /> are identified in this area, no construction shall <br /> be conducted during the nesting season for these <br /> birds. <br /> Prior to construction of the access road,a <br /> survey shall be conducted for the presence of <br /> delta button celery in that portion of the <br /> freshwater marsh that would be impacted by the <br /> access road. If delta button celery is identified <br /> in this area, mitigation shall be provided as <br /> designated by the USFWS. <br /> A mitigation plan shall be developed and <br /> submitted to the County prior to construction <br /> which provides for development of wetland <br /> habitat to compensate for any of the freshwater <br /> marsh that would be impacted by the access <br /> road construction. This mitigation shall involve <br /> expansion of the existing fresh water marsh and <br /> provide for no net loss of wetlands. <br />