PHASE I ENVIRONMENTAL SITE ASSESSMENT REPORT US Army Corps of Engineers South Pacific Division Laboratory 25 Liberty Ship Way Sausalito, California 94965 December 1, 2004 (Revised Dec. 20, 2004) Project No. U04-2732 Phase I ESA – USACOE – S. Pacific Division Laboratory – Sausalito, CA U04-2732/ASGI001 Page 1 December 1, 2004 (Revised 12/20/04) TABLE OF CONTENTS Section Page EXECUTIVE SUMMARY .................................................................................................1 Site and Surrounding Property Description Summary ....................................................1 1.0 PROJECT DESCRIPTION..........................................................................................7 1.1 Site Description........................................................................................................7 1.2 Purpose.....................................................................................................................7 1.3 Scope of Services.....................................................................................................8 1.4 User’s Responsibilities and Obligations..................................................................8 2.0 HYDROGEOLOGIC SETTING .................................................................................9 2.1 Geologic Setting ......................................................................................................9 2.2 Area Hydrogeology..................................................................................................9 2.3 Water Wells ...........................................................................................................10 3.0 HISTORICAL LAND USE REVIEW.......................................................................11 3.1 Site Use Summary..................................................................................................11 3.2 Fire Insurance Maps...............................................................................................11 3.3 City Directories......................................................................................................12 3.4 Aerial Photographs ................................................................................................12 3.5 Local Agency Review............................................................................................13 3.6 Interviews...............................................................................................................13 3.7 Previous Reports and Proceedings.........................................................................13 4.0 SITE RECONNAISSANCE .......................................................................................16 4.1 Site Access and Limitations...................................................................................16 4.2 Current Operations/Tenants...................................................................................16 4.3 Hydrologic, Topographic and Surface Conditions ................................................16 4.4 Utilities and Building Systems ..............................................................................17 4.5 Chemical Storage...................................................................................................17 4.6 Waste Generation, Storage, and Disposal..............................................................17 4.7 Polychlorinated Biphenyls (PCBs) ........................................................................17 4.8 Storage Tanks ........................................................................................................17 Phase I ESA – USACOE – S. Pacific Division Laboratory – Sausalito, CA U04-2732/ASGI001 Page 2 December 1, 2004 (Revised 12/20/04) 4.9 Lead-Based Paint ...................................................................................................18 4.10 Asbestos Containing Building Materials (ACBM)............................................18 4.11 Surrounding Property Observations...................................................................18 5.0 REGULATORY REVIEW........................................................................................19 5.1 Federal Agency Record Review ............................................................................19 5.2 State Agency Record Review ................................................................................21 5.3 Local Agency Record Review ...............................................................................24 5.3.1. Sausalito Fire Department.............................................................................24 6.0 CONCLUSIONS RECOMMEDATIONS................................................................26 7.0 STANDARD OF CARE ............................................................................................26 REFERENCES ..................................................................................................................27 LIST OF FIGURES 1. Site Location Map 2. Site Topographic Map 3. Site Drawing LIST OF APPENDICES A. Photographic Documentation B. Regulatory Database Evaluation Report C. Sanborn Maps D. Aerial Photograph E. Excerpts from Previous Environmental Reports Phase I ESA – USACOE – S. Pacific Division Laboratory – Sausalito, CA U04-2732/ASGI001 Page 3 December 1, 2004 (Revised 12/20/04) PHASE I ENVIRONMENTAL ASSESSMENT REPORT US ARMY CORPS OF ENGINEERS SOUTH PACIFIC DIVISION LABORATORY 25 LIBERTY SHIP WAY SAUSALITO, CALIFORNIA 94965 PROJECT NO.: U04-2732 DECEMBER 1, 2004 (Revised December 20, 2004) Prepared for: Veterans Administration Hospital San Francisco, California Prepared by: Advanced Solutions Group, LLC 1205 West Flint Meadow Drive, #3 P.O. Box 125 Kaysville, Utah 84037 (801) 444-0029 Phase I ESA – USACOE – S. Pacific Division Laboratory – Sausalito, CA U04-2732/ASGI001 Page 4 December 1, 2004 (Revised 12/20/04) EXECUTIVE SUMMARY Advanced Solutions Group, Inc. (ASG) conducted a Phase I Environmental Assessment (EA) of the US Army Corps of Engineers (USACOE) South Pacific Division Laboratory Building located at 25 Liberty Ship Way (Lat. 36.8624, Long. –122.4945) in Marin County, California. This EA was conducted in general accordance with the scope and limitations of ASTM Designation E 1527-2000, “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process”. No exceptions to or deletions from the ASTM E 1527-2000 standard practice and authorized Scope of Services were encountered. This Executive Summary summarizes the key findings of this assessment based on information and data available to us during the performance of this project. Detailed information regarding these findings is provided in the corresponding section of the text of the report. The report should be read in its entirety to obtain a more complete understanding of the information provided. Site and Surrounding Property Description Summary The Site is a rectangular-shaped parcel, consists of approximately 1.79 acres, and is improved with a two-story unoccupied building. The building was originally constructed in the late-1940s and was originally occupied by the US Army Corps of Engineers South Pacific Division Laboratory. In addition, the Site contains asphalt parking and various interior sumps. The building contains a total of approximately 37,800 square feet. The surrounding property consists of commercial property and a marina, as the Site is located approximately 200 feet west of Richardson Bay. Findings and Conclusions Potential recognized environmental conditions associated with the Site include the following: • Historical Site Usage – A NWP railroad yard and an associated electrical building were on Site since 1909 until the 1950s. The existing Site building was constructed in the late-1940s, according to a previous environmental report and visual evidence on a 1949 aerial photograph. Remnant of the previous railroad spur can currently be seen on Site (east border of Site); however, they are no longer in use. The previous existence of the railroad tracks and electrical building represent a potential recognized environmental concern to the Site due to the nature of their operations. Phase I ESA – USACOE – S. Pacific Division Laboratory – Sausalito, CA U04-2732/ASGI001 Page 5 December 1, 2004 (Revised 12/20/04) • Historical adjacent properties – an oil house, an oil tank, the Marin Shipyards, a gas house, and Plaster Works company. Due to the nature of their operations and their relative locations to the Site, these facilities may have had an environmental impact to the Site. • South Adjacent Property - The Schoonmaker Building is involved with various oil-based wastes. It is cross-gradient; however, it may have impacted the subsurface conditions at the Site. In addition, this facility is on the LUST database and is listed as on-going and having contaminated the groundwater. This leak was discovered in 1994 and remediation is still on- going. Due to the environmental impact and the relative distance from the Site, this facility may impact the subsurface conditions at the Site. • North Adjacent Property – The US Army COE, located at the north adjacent property is involved with PCB waste, asbestos waste, and various metal waste. This facility may have impacted the subsurface conditions at the subject Site. • Nearby Dry Cleaner - Orchid Cleaners, located approximately 200 feet southeast of the Site, is a listed dry cleaning facility. Due to the relative distance of this facility, and