Phase I Environmental Site Assessment 1951 South River Road West Sacramento, Yolo County, California Assessor’s Parcel Numbers (APNs) 067-180-004, 067-180-001, 058-260- 019, 058-260-017, 058-260-018, and 058-260-016 Presented to: City of West Sacramento Mr. Jon Robinson Housing and Community Investment Manager 1110 West Capitol Avenue, 2nd Floor West Sacramento, California 95691 (916) 371-0845 Presented by: SCS ENGINEERS 852 Northport Drive, Suite 5 West Sacramento, CA 95691 October 21, 2014 Project Number: 01214093.00, Task 03 Offices Nationwide www.scsengineers.com 1951South River Road (APNs: 067-180-004, 067-180-001, 067-180-019, 058-260-017, 058-260-018, & 058-260-016) Table of Contents Section Page 1 Background ............................................................................................................................................. 1 2 Standards Background ......................................................................................................................... 2 Detailed Scope of Study ....................................................................................................................... 3 3 Objective ................................................................................................................................................. 4 4 Scope of Services .................................................................................................................................. 4 Site Reconnaissance ................................................................................................................................ 4 General Information .................................................................................................................... 4 Site Buildings ................................................................................................................................. 5 Site Grounds ................................................................................................................................. 6 Hazardous Materials/Petroleum Products .............................................................................. 6 Hazardous Wastes ...................................................................................................................... 7 Indications of Releases of Hazardous Materials/Wastes or Petroleum Products ........... 7 On-Site Utilities ............................................................................................................................ 8 Septic System ................................................................................................................................ 8 Non-ASTM Items Considered ..................................................................................................... 8 Asbestos Containing Building Materials (ACBM) .................................................................... 9 Lead Based Paint (LBP) ............................................................................................................... 9 Site Research ........................................................................................................................................... 9 Available Documents ................................................................................................................... 9 Environmental Health Department Records Review ............................................................ 14 Fire Department Records Review ........................................................................................... 15 Community Development Records Review ............................................................................ 17 Air Quality Management District Records Review .............................................................. 17 Central Valley Regional Water Quality Control Board Records Review ...................... 18 Interviews............................................................................................................................................... 18 User Requirements ............................................................................................................................... 19 Data Gaps in Connection With Current Site Land Use ................................................................. 19 Topography, Soil, Geology, Hydrogeology and Water Quality Survey ................................ 20 Topography ............................................................................................................................... 20 Soil Survey ................................................................................................................................. 21 Geology ..................................................................................................................................... 21 Hydrogeology ........................................................................................................................... 22 Groundwater Quality Survey ................................................................................................. 22 Site Vicinity Reconnaissance and Off-Site Source Survey ........................................................... 23 Current Site Vicinity Conditions .............................................................................................. 23 Environmental EDR® Site Assessment Report ....................................................................... 23 Known, Reported, or Suspected Releases within the Site Vicinity ......................... 26 State and Tribal EnviroStor - CERCLIS Equivalent ................................................... 26 California LUSTs ............................................................................................................. 26 Federal RCRA Gen Facilities List ................................................................................. 28 CORTESE database and HIST CORTESE Sites .......................................................... 30 California State Spills, Leaks, Investigations and Cleanup (SLIC) List .................. 32 Phase I ESA ii 1951South River Road (APNs: 067-180-004, 067-180-001, 067-180-019, 058-260-017, 058-260-018, & 058-260-016) US Hist Auto Stat ............................................................................................................ 33 US Hist Cleaners ............................................................................................................. 33 Other EDR Site Listings .................................................................................................. 33 Non-Geocoded Site ...................................................................................................... 33 Water Supply Wells ..................................................................................................... 33 California Division of Oil and Gas ............................................................................. 33 Additional SCS Research ......................................................................................................... 34 Data Gaps in Connection With Off-Site Sources .......................................................................... 34 Historical Land Use Review ................................................................................................................ 35 Historical Site Land Use ........................................................................................................... 35 Historical Site Vicinity Land Use ............................................................................................. 37 Data Gaps in Connection With the Historical Site Land Use ....................................................... 39 Vapor Intrusion ..................................................................................................................................... 40 5 Conclusions and Recommendations ................................................................................................... 41 Significant Assumptions ....................................................................................................................... 44 Limitations and Exceptions ................................................................................................................. 44 Special Terms and Conditions................................................................................................. 46 6 Report Usage and Future Site Conditions ....................................................................................... 46 7 Likelihood Statements ......................................................................................................................... 47 8 Special Contractual Conditions Between User and Environmental Professional ...................... 47 9 References ............................................................................................................................................. 48 Appendices A Figures and Maps Figure 1 – Site Location Map Figure 2a – Site Plan (APN 067-180-004 – Navigation Lock) Figure 2b – Site Plan (APN 067-180-001; 067-180-019 – WWTP) Figure 2c – Site Plan (APN 058-260-017; 058-260-018 – Corp. Yard) Figure 2d – Site Plan (APN 058-260-016 – Sludge Basin) Topographical Maps (from EDR®) Sanborn Map Report (from EDR®) B Site and Vicinty Photographs and Aerial Photographs (from EDR®) C EDR® Radius Report D City Directory (EDR®) E Agency Records F All Appropriate Inquiry (AAI) User