730 Stanyan Street San Francisco, California
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PHASE I ENVIRONMENTAL SITE ASSESSMENT 730 Stanyan Street San Francisco, California Prepared For: Mayor’s Office of Housing and Community Development 1 South Van Ness Avenue, 5th Floor San Francisco, California 94103 Prepared By: Langan Engineering and Environmental Services, Inc. 555 Montgomery Street, Suite 1300 San Francisco, California 94111 Dustyne Sutherland Senior Project Scientist Dorinda Shipman, PG, CHG Principal/Vice President 9 October 2017 731639402 9 October 2017 Mr. Eugene T. Flannery Mayor’s Office of Housing and Community Development 1 South Van Ness Avenue, 5th Floor San Francisco, CA 94103 Subject: Phase I Environmental Site Assessment 730 Stanyan Street San Francisco, California Langan Project: 731639402 Dear Mr. Flannery: Langan Engineering and Environmental Services, Inc. is pleased to submit this Phase I Environmental Site Assessment for the property located at 730 Stanyan Street, in San Francisco, California. In performing this Phase I ESA, we have endeavored to observe the degree of care and skill generally exercised by other consultants undertaking similar studies at the same time, under similar circumstances and conditions, and in the same geographical area. We appreciate the opportunity to assist you with this project. If you have any questions or need any information clarified, please call Ms. Dustyne Sutherland at (415) 955-5283. Sincerely yours, Langan Engineering and Environmental Services, Inc. Dustyne Sutherland Dorinda Shipman, PG, CHG Senior Project Scientist Principal/Vice President \\Langan.com\data\SFO\data4\731639402\Outbound\731639402.01 DJS_Phase I ESA-730 Stanyan St V2.docx Phase I Environmental Site Assessment 9 October 2017 730 Stanyan Street 731639402 San Francisco, California Page i TABLE OF CONTENTS ACRONYMS AND ABBREVIATIONS ....................................................................................... iii E1.0 EXECUTIVE SUMMARY ................................................................................................ 1 E1.1 Site Description.................................................................................................. 1 E1.2 Environmental Database and File Review ........................................................ 2 E1.3 Conclusions ........................................................................................................ 2 1.0 INTRODUCTION ............................................................................................................. 3 1.1 Purpose ............................................................................................................... 3 1.2 Scope of Phase I ESA ......................................................................................... 4 1.3 Assumptions Limitations and Exceptions ........................................................ 5 1.4 Special Terms and Conditions and User Reliance ........................................... 6 2.0 SITE DESCRIPTION ........................................................................................................ 6 2.1 Location and Legal Description ........................................................................ 6 2.2 Site and Vicinity General Characteristics ......................................................... 6 2.3 Current Use of the Site and Adjoining Properties ........................................... 7 2.4 Descriptions of Structures, Roads, Other Improvements on the Site ............ 7 3.0 USER PROVIDED INFORMATION ................................................................................. 7 3.1 User/Owner Questionnaire ............................................................................... 7 3.2 Title Record ........................................................................................................ 8 3.3 Environmental Liens or Activity and Use Limitation ....................................... 8 3.4 Specialized Knowledge ..................................................................................... 8 3.5 Commonly Known and Reasonable Ascertainable Information ..................... 8 3.6 Valuation Reduction for Environmental Issues ............................................... 8 3.7 Owner, Site Manager and Occupant Information ........................................... 8 3.8 Reason for Performing a Phase I ESA ............................................................... 8 4.0 RECORDS REVIEW ........................................................................................................ 9 4.1 Standard Environmental Record Sources ........................................................ 9 4.1.1 Site – 730 Stanyan Street .................................................................... 10 4.1.2 Off-Site Database Listings ................................................................... 10 4.2 Physical Setting Sources ................................................................................. 13 4.3 Surface Water and Flood Plain Conditions .................................................... 13 4.4 Nearby Well Locations ..................................................................................... 13 4.5 Historical Use Information on the Site, Adjoining Properties, and Surrounding Properties ................................................................................... 14 4.6 Vapor Encroachment Screen .......................................................................... 18 5.0 SITE RECONNAISSANCE ............................................................................................ 18 5.1 Methodology and Limiting Conditions........................................................... 18 5.2 General Site Setting and Reconnaissance Observations .............................. 19 5.3 Site Observations ............................................................................................ 20 Phase I Environmental Site Assessment 9 October 2017 730 Stanyan Street 731639402 San Francisco, California Page ii TABLE OF CONTENTS (Continued 6.0 INTERVIEWS ...................................................................................................................... 22 6.1 Subject Site User/Owner ................................................................................ 22 7.0 PHASE I ESA FINDINGS AND CONCLUSION ............................................................. 22 7.1 Known or Suspect RECs .................................................................................. 22 7.2 Data Gaps ......................................................................................................... 23 7.3 Conclusion ........................................................................................................ 23 8.0 DEVIATIONS ................................................................................................................ 24 9.0 ADDITIONAL SERVICES .............................................................................................. 24 10.0 REFERENCES ............................................................................................................... 25 11.0 SIGNATURE OF ENVIRONMENTAL PROFESSIONAL ............................................... 25 12.0 QUALIFICATIONS OF ENVIRONMENTAL PROFESSIONAL ...................................... 25 REFERENCES FIGURES APPENDIX A – SITE PHOTOGRAPH LOG APPENDIX B – OWNER PROVIDED INFORMATION APPENDIX C – RADIUS MAP REPORT APPENDIX D – AERIAL PHOTO DECADE PACKAGE APPENDIX E – CERTIFIED SANBORN MAP REPORT APPENDIX F – HISTORICAL TOPOGRAPHIC MAP REPORT APPENDIX G – CITY DIRECTORY ABSTRACT APPENDIX H – VAPOR ENCROACHMENT SCREEN APPENDIX I – QUALIFICATIONS OF ENVIRONMENTAL PROFESSIONALS Phase I Environmental Site Assessment 9 October 2017 730 Stanyan Street 731639402 San Francisco, California Page iii ACRONYMS AND ABBREVIATIONS Acronym Definition AAI All Appropriate Inquiry ACM Asbestos containing material APN Assessor’s Parcel Number AST Aboveground storage tank ASTM American Society for Testing and Materials BER Business environmental risk bgs Below ground surface BTEX Benzene, toluene, ethylbenzene, total xylenes CERCLA Comprehensive Environmental Response Compensation and Liability Act CFR Code of Federal Regulations client Mayor's Office of Housing and Community Development CUPA Certified Unified Program Agency DTSC California Department of Toxic Substances Control EDR Environmental Data Resources, Inc. EDR Hist Cleaners EDR Historic Dry Cleaners database ESA Environmental site assessment FEMA Federal Emergency Management Agency FINDS Federal Index System/Facility Registry System HLA Harding Law Associates HREC Historic recognized environmental condition Langan Langan Engineering and Environmental Services, Inc. LBP Lead-based paint LOP Local Oversight Program LUST Leaking underground storage tank mg/kg Milligrams per kilogram MOHCD Mayor's Office of Housing and Community Development Phase I Environmental Site Assessment 9 October 2017 730 Stanyan Street 731639402 San Francisco, California Page iv ACRONYMS AND ABBREVIATIONS (Continued) msl Mean sea level MTBE Methyl tert-butyl ether ND Nondetect OWS Oil/water separator PCB Polychlorinated biphenyl PCE Tetrachloroethene REC Recognized environmental condition RWQCB California Regional Water Quality Control Board Sanborn Maps Sanborn Fire Insurance Maps SFDPH San Francisco Department of Public Health USEPA United States Environmental Protection Agency Phase I Environmental Site Assessment 9 October 2017 730 Stanyan Street 731639402 San Francisco, California Page 1 PHASE I ENVIRONMENTAL SITE