CITY OF GALVESTON – RFP # 19-29 ADDENDUM # 1 49TH STREET IMPROVEMENTS Date: 8/22/2019 To: Prospective Proposers Subject: Addendum No. 1 Geotechnical Reports This addendum forms part of the proposal and contract documents and modifies the original solicitation documents dated 8/14/2019 Acknowledge receipt of this addendum in the space provided below. FAILURE TO DO SO WILL SUBJECT OFFEROR TO DISQUALIFICATION. The Geotechnical Reports are attached; addendum must be acknowledged and included in the submittal. I hereby certify receipt of this addendum and have incorporated its information or changes in preparation of my submittal. _______________________________ _____________________________ Authorized Signature Date _______________________________ _____________________________ Printed Name Company Name A COPY OF THE ADDENDUM MUST BE SIGNED AND RETURNED WITH YOUR PROPOSAL LIMITED PHASE I ENVIRONMENTAL SITE ASSESSMENT 49TH STREET PAVING IMPROVEMENTS FROM AVENUE ‘P’ TO AVENUE ‘S” 1/2 CITY OF GALVESTON, TEXAS PROJECT NO. 18-104E TO STANTEC CONSULTING SERVICES INC. HOUSTON, TEXAS BY GEOTECH ENGINEERING AND TESTING SERVICING TEXAS, LOUISIANA, NEW MEXICO, OKLAHOMA www.geotecheng.com MARCH 2018 TEXAS BOARD OF PROFESSIONAL ENGINEERS REGISTRATION NUMBER F-001183 TABLE OF CONTENTS Page ABBREVIATIONS ...............................................................................................................................1 1.0 EXECUTIVE SUMMARY .......................................................................................................2 2.0 INTRODUCTION .....................................................................................................................6 2.1 Purpose ...............................................................................................................................6 2.2 Detailed Scope-of-Services ................................................................................................7 2.3 Credentials of Environmental Professionals ......................................................................8 2.4 Significant Assumptions .....................................................................................................8 2.5 Limitations and Exceptions of Assessment ........................................................................9 2.6 Special Terms and Conditions ............................................................................................9 2.7 Reliance ..............................................................................................................................9 3.0 SITE DESCRIPTION ..............................................................................................................10 3.1 Location and Legal Description .......................................................................................10 3.2 Site and Vicinity Description ...........................................................................................10 3.3 Past and Current Uses of the Property ..............................................................................10 3.4 Description of Structures ..................................................................................................10 3.5 Current Uses of the Adjoining Properties ........................................................................10 4.0 USER - PROVIDED INFORMATION ...................................................................................11 4.1 Reason for Performing the Phase I ESA ..........................................................................11 5.0 RECORDS REVIEW...............................................................................................................11 5.1 Standard Environmental Record Sources, Federal and State ...........................................11 5.1.1 RCRA Database (RCRIS List)...............................................................................12 5.1.2 Leaking Petroleum Storage Tank (LPST) Site ......................................................13 5.1.3 RCRA NonGen / NLR Site ....................................................................................13 5.1.4 Formerly Used Defense Sites (FUDS) ...................................................................14 5.1.5 Unexploded Ordnance Site (UXO) ........................................................................15 5.1.6 TX Ind. Haz. Waste Site ........................................................................................16 5.1.7 TX IHW CORR ACTION Site ..............................................................................16 5.1.8 NY MANIFEST site ..............................................................................................17 5.1.9 WI MANIFEST site ...............................................................................................17 5.1.10 MN MANIFEST site..............................................................................................17 5.1.11 EDR Hist. Auto site ...............................................................................................17 5.2 Physical Setting Sources ..................................................................................................18 5.2.1 Topography ............................................................................................................18 5.2.2 Soils/Geology .........................................................................................................18 5.2.3 Surface Water Hydrology ......................................................................................18 5.2.4 Hydrogeology ........................................................................................................18 5.3 Oil and Gas Wells .............................................................................................................19 5.4 Water Wells ......................................................................................................................19 5.5 Flood Insurance Rate Map ...............................................................................................19 5.6 Historical Use Information on the Project Site and Adjoining Properties .......................19 i GEOTECH ENGINEERING AND TESTING 5.6.1 Historical Aerial Photographs ................................................................................20 5.6.2 Historical Topographic Maps ................................................................................20 5.6.3 Sanborn Fire Insurance Maps ................................................................................21 5.6.4 Vapor Encroachment Screening Summary ............................................................21 5.6.5 Historical Use Information Summary ....................................................................21 5.7 NEPA Search Description, Federal and State ..................................................................21 6.0 SITE RECONNAISSANCE ....................................................................................................22 6.1 Methodology and Limiting Conditions ............................................................................22 6.2 General Site Setting ..........................................................................................................22 6.3 Exterior and Interior Observations ...................................................................................22 6.3.1 Current Use(s) of the Property ...............................................................................22 6.3.2 Hazardous Substances ............................................................................................22 6.3.3 Storage Tanks.........................................................................................................22 6.3.4 PCBs ......................................................................................................................22 6.3.5 Wells ......................................................................................................................23 6.3.6 Septic Systems .......................................................................................................23 6.3.7 Drums/Containers ..................................................................................................23 6.3.8 Odors ......................................................................................................................23 7.0 INTERVIEWS .........................................................................................................................23 8.0 FINDINGS ...............................................................................................................................24 9.0 CONCLUSIONS AND OPINIONS ........................................................................................24 10.0 STANDARD OF CARE ..........................................................................................................24 11.0 DEFINITIONS .........................................................................................................................24 APPENDICES Appendix A – Site Maps Appendix B – Site Photographs Appendix C – Regulatory Records Documentation – Executive Summary Appendix D – Physical Setting Information – Summary Appendix E – Historical Records Documentation E-1 – Historical Aerial Photographs E-2 – Historical Topographic Map E-3 – Historical Sanborn Fire Insurance Map E-4 – Vapor Encroachment Screen Appendix F – NEPA Search Description Appendix G – Interview