SU0004097 - Laserfiche WebLink

Home Browse Search

Biological Resources, MONK&ASSOCIATES Impacts and Mitigations Tracy Facility Expansion Site 1. INTRODUCTION Monk&Associates (M&A) have contracted with Granite Construction Company(Granite)tQ prepare this biological resources,impacts, and mitigation analysis for the proposed expa=nsion of Granite's Tracy Facility in San Joaquin County, California. The purpose of this biological resources report is to provide a description of existing biological resources on the proposed Tracy Facility expansion site(herein referred to as the project site) and present the potential impacts to biological resources associated with expansion of the project as currently proposed. This report also provides mitigation measures that,when implemented,would reduce all project- related impacts to biological resources to less than significant levels. 2. PROJECT LOCATION The proposed Tracy Facility expansion site(the project site)is located west of the existing Tracy Facility,west of the California Aqueduct,on the east side of I-580 in southwestern San Joaquin County(Tigure:1.). The legal description of-- e projeet site sa the South Wd§t`l bf S-&6-F166117, Township 3 South,Range 5 East,Tracy, California 7.5 minute U.S. Geological Survey Quadrangle. 3. HISTORY OF THE PROJECT AND THE PROJECT SITE Both the proposed project and the project site have a long history. The project as currently proposed has undergone substantial modifications to reach the point where it is today. The project site has been altered over the years during past mining activities'and other land use manipulations. A discussion of the project and project site's history are provided below. Cf 3.1 Project History In 1979, Granite was granted an excavation permit by San Joaquin County(EP-80-3)to remove sand and gravel from a 267-acre parcel of laud which lies within the Corral Hollow Creek alluvial fan near Tracy. The parcel is divided into a west half(the proposed expansion site)and an east half(the existing Tracy Facility)by the California Aqueduct. Excavation began on the east half in 1979. By 1989, excavation had been continuous on the east half but had not yet begun on the west half(the expansion site). In 1989 Granite submitted an application to San Joaquin County to renew the then existing excavation permit(QX-89-1). In response to this application, California Department of Fish and Game(CDFG) objected to including the west half of the parcel in the permit renewal because of the then pending development of the San Joaquin Kit Fox (Vulpes macrotis mutica)Habitat Conservation Plan(HCP). Since mining of the west half had not yet begun under the Granite permit, San Joaquin County concurred with CDFG and subsequently issued a renewal permit(QX-89=1)that only permitted mining on the east half of the parcel(the existing Tracy,Facility). There have been seven previous excavation permits authorized by San Joaquin County for mining the 267 acre parcel: EP-71 (1966),EP-98 (1967),EP-136 (1968), EP-173 (1969),EP-71- l