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I� E Biological Resources, MONS &ASSOCIATES impacts and Mitigations Tracy Facility Expansion Site on the next phase area of the mining project,until all six areas were surveyed. Each miring area (e.g., Area 1) and an area of influence around'the mining area would be surveyed. Surveys would commence within 60 days of initiation of mining. Preconstruction survey methods would include den surveys and use of surveillance cameras at questionable burrow sites. Prior to initiating surveys,proposed survey methods would be approved by USFWS and CDFG. In' addition, survey results would be prepared and submitted to USFWS and CDFG prior to initiation of mining that year. If no occupied Idt fox dens are located during surveys, then mining would be allowed to commence in that area. If occupied kit fox dens are located during preconstruction surveys, each den would be excavated by hand and animals removed and released nearby, outside the project area. Excavation activities would be coordinated with USFWS and CDFG personnel. Any occupied dens located outside the construction footprint would be clearly flagged and disturbance would be minimized to the greatest extent practicable. A biologist would also be posted near the occupied den to monitor activities and disturbance during construction. For complete details on the proposed kit fox mitigation plan, including a discussion of mitigation management fees,please refer to the San Joaquin Kit Fox Mitigation Pian in Appendix A, at the back of this report. Reclamation of the project site and acquisition of an offsite mitigation I parcel,in combination with preconstruction surveys,would reduce impacts to San Joaquin kit fox from the proposed project to a level considered less than significant. 14.21 Impact Number 11 -Waters of the United States and Stream Channels in Iemeiitation of the project.as proposed could result in impacts to waters of the United I P P . P P J States and stream channels. Corral Hollow Creek is the only"water of the United States"present on the project site. This stream channel meets the Corps criteria as an"other water." Impacts proposed to this stream channel include annual temporary installation and removal of a road crossing over a two year period. Installation of culverts to construct the road crossing would adversely effect approximately 0.03-acre-of"waters of the United States." Installation of these culverts would be considered a short-term significant impact. This impact could be mitigated to a level considered less than significant. 14.22 Mitigation Measure I1 -Waters of the United States-and Stream Channels Implementation of the following mitigation would reduce impacts to waters of the United States and stream channels to a level considered less than.significant. Installation of culverts in Corral Hollow Creek would require authorization from CDFG pursuant to Section 1603 of California Fish and Game Code, authorization from the Corps pursuant to Section 404 of the Clean Water Act,and receipt of a certificate or waiver of water quality from the Regional Water Quality Control Board pursuant to Section 401 of the Clean Water Act. Once these three agencies authorize/verify these agreements, culvert installation could take place. Since placement of the culverts in the creek would not impact riparian vegetation, and culvert installation and removal would occur during the dry months of the year, impacts to i 39