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PHASE I <br /> ENVIRONMENTAL SITE ASSESSMENT REPORT <br /> PROPOSED MOUNTAIN HOUSE PRESCHOOL <br /> AND MULTI-PURPOSE BUILDINGS <br /> APN 254-260-480 <br /> 54 WEST CONEJO COURT <br /> MOUNTAIN HOUSE, SAN JOAQUIN COUNTY <br /> CALIFORNIA <br /> EXECUTIVE SUMMARY <br /> December 2,2020 <br /> This ASTM E 1527-13 Phase I Environmental Site Assessment (ESA) was performed by Condor Earth <br /> (Condor) at the request of CATX Partners, LLC (Client). The assessment was performed on Assessor's <br /> Parcel Number (APN) 254-260-480 (Site), totaling approximately 3 acres. The Site is located at 54 West <br /> Conejo Court, in Mountain House,California(Figures 1 through 3,Appendix A). <br /> The approximately 3-acre Site 54 West Conejo Court located in Neighborhood E of Mountain House, <br /> California. The Site was used for agricultural purposes since the 1930s. In the early 20t' century, Shell <br /> operated twin crude oil pipelines that transected the Neighborhood 1,300 feet west of the Site and were <br /> partially removed during the 1960s.The pipelines leaked in certain areas,releasing petroleum hydrocarbons <br /> (crude oil and diesel range hydrocarbons) into soil and groundwater. <br /> Condor conducted a Phase I ESA on the Site in 2001. One recognized environmental condition was <br /> identified for the Site: <br /> 1. The former agricultural use of the Site possibly having resulted in residual pesticides and herbicides <br /> in soil. <br /> Condor conducted an assessment for agricultural chemicals on the Site and entire neighborhood in 2002 as <br /> documented in the Phase II Environmental Site Assessment Report, Proposed Neighborhood E, Portions <br /> of Assessor's Parcels 209-050-06, 209-050-02, 209-050-07, and 209-050-04, Mountain House, San <br /> Joaquin County, California,dated July 3,2002.The soil samples collected from the Site and Neighborhood <br /> E did not contain detectable residual pesticides or herbicides above the laboratory reporting limits, and the <br /> laboratory reporting limits were well below sensitive land use screening levels. <br /> This assessment has revealed no evidence of recognized environmental conditions in connection with the <br /> property(Site). During the site reconnaissance, several truckloads of concrete debris were observed on the <br /> southeast portion of the Site from various sources, see Photo 8, Appendix B. Condor recommends no <br /> further evaluation of the Site for environmental concerns. <br /> LIMITATIONS TO EXECUTIVE SUMMARY <br /> This executive summary should only be read in conjunction with the full report text.Terminology is defined in <br /> the Glossary of Terms and Acronyms in Appendix G.The scope of work,significant assumptions,limitations, <br /> and exceptions should be understood prior to reading the Site-specific information, findings, opinions, and <br /> conclusions. <br /> to ii CONDOR <br />