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Lennar Homes of California Mountain House Creek, Parcel L, Tract 3424, Tracy <br /> 4943.410.103 Modified Phase I Environmental Site Assessment <br /> TABLE OF CONTENTS <br /> LETTER OF TRANSMITTAL <br /> EXECUTIVE SUMMARY ................................................................................................ 1 <br /> 1.0 INTRODUCTION .................................................................................................. 2 <br /> 1.1 PURPOSE OF MODIFIED PHASE I ENVIRONMENTAL SITE ASSESSMENT................2 <br /> 1.2 DETAILED SCOPE OF SERVICES....................................................................................2 <br /> 1.3 SITE LOCATION AND DESCRIPTION ..............................................................................2 <br /> 1.4 CURRENT USE OF PROPERTY AND ADJOINING PROPERTIES .................................2 <br /> 1.5 SITE AND VICINITY CHARACTERISTICS........................................................................3 <br /> 2.0 PREVIOUS ENVIRONMENTAL REPORTS......................................................... 4 <br /> 3.0 RECORDS REVIEW ............................................................................................ 4 <br /> 3.1 PROPERTY RECORDS .....................................................................................................4 <br /> 3.1.1 Title Report/Ownership ..........................................................................................4 <br /> 3.1.2 Environmental Liens and Activity Use Limitations.................................................4 <br /> 3.2 HISTORICAL RECORD SOURCES...................................................................................4 <br /> 3.2.1 Historical Topographic Maps/Aerial Photographs/Sanborn Maps.........................4 <br /> 3.2.2 City Directory..........................................................................................................5 <br /> 3.3 ENVIRONMENTAL RECORD SOURCES .........................................................................5 <br /> 3.3.1 Environmental Records..........................................................................................5 <br /> 3.3.1.1 Subject Property.....................................................................................5 <br /> 3.3.1.2 Other Properties.....................................................................................6 <br /> 3.4 REGULATORY AGENCY FILES AND RECORDS ............................................................7 <br /> 3.5 INDOOR AIR QUALITY......................................................................................................7 <br /> 4.0 SITE RECONNAISSANCE................................................................................... 7 <br /> 4.1 METHODOLOGY................................................................................................................7 <br /> 4.2 EXTERIOR OBSERVATIONS............................................................................................8 <br /> 4.3 INTERIOR OBSERVATIONS .............................................................................................9 <br /> 4.4 ASBESTOS, LEAD, AND PCB-CONTAINING MATERIALS..............................................9 <br /> 5.0 INTERVIEWS ....................................................................................................... 9 <br /> 6.0 AGRICHEMICAL IMPACT ASSESSMENT ......................................................... 9 <br /> 6.1 SOIL SAMPLING ................................................................................................................9 <br /> 6.2 ANALYTICAL RESULTS .................................................................................................. 10 <br /> 7.0 FINDINGS AND CONCLUSIONS ...................................................................... 10 <br /> 8.0 LIMITATIONS..................................................................................................... 11 <br /> 8.1 SIGNIFICANT ASSUMPTIONS OR DEVIATIONS FROM ASTM STANDARD <br /> PRACTICE........................................................................................................................ 11 <br /> 8.2 OPINIONS AND DATA GAPS.......................................................................................... 11 <br /> 8.3 LIMITATIONS AND EXCEPTIONS OF ASSESSMENT................................................... 11 <br /> 8.4 SPECIAL TERMS AND CONDITIONS............................................................................. 12 <br /> REFERENCES <br /> ENGEO i of ii March 15, 2021 <br /> Expect Excellence <br />