Hazardous Materials Commodity Flow Study with Special Focus on Sea Level Rise and Flood Risk Contra Costa County California
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HAZARDOUS MATERIALS COMMODITY FLOW STUDY WITH SPECIAL FOCUS ON SEA LEVEL RISE AND FLOOD RISK CONTRA COSTA COUNTY CALIFORNIA Contra Costa Health Services Hazardous Materials Programs Tait Environmental Services, Inc. August 2019 Primarily prepared and edited by Tait Environmental Services, Inc. In Cooperation with the Contra Costa Health Services Hazardous Materials Programs TABLE OF CONTENTS 1.0 INTRODUCTION ........................................................................................................................ 1 1.1 Project Objectives 1 1.2 Project Background 2 2.0 HISTORICAL INFORMATION ............................................................................................... 3 2.1 Hazardous Materials Transportation Study 2005 3 2.1.1 Railroad Data ...................................................................................................................... 3 2.1.2 Highway Data ...................................................................................................................... 6 2.2 Highway Flow Study Data from Marin and Solano Counties 12 2.2.1 Marin County Flow Study Data 2014............................................................................. 12 2.2.2 Solano County Flow Study Data 2016 .......................................................................... 16 3.0 COMMODITY FLOW STUDY .............................................................................................. 22 3.1 Railroad Data 22 3.2 Industry Chemical Data 24 3.3 Pipeline Data 25 3.3.1 Richmond Area Pipeline Data ........................................................................................ 26 3.3.2 Crockett Area Pipeline Data ........................................................................................... 28 3.3.3 Martinez Area Pipeline Data ........................................................................................... 30 3.3.4 Pittsburg-Antioch Area Pipeline Data ............................................................................ 32 3.4 Hazardous Materials Incidents 34 3.4.1 Railroad Incidents ............................................................................................................. 34 3.4.2 Highway Incidents ............................................................................................................ 43 3.4.2 Pipeline Incidents ............................................................................................................. 48 4.0 COMMUNITY RISK ASSESSMENT FOR HAZARDOUS MATERIALS ................ 54 4.1 Determination of Pinch Points 55 4.1.1 Rising Tides Data ............................................................................................................. 56 4.1.2 California Healthy Places Index ..................................................................................... 66 4.1.3 Liquefaction Susceptibility ............................................................................................... 68 4.1.4 CalARP Facilities .............................................................................................................. 69 4.1.5 Critical Facilities and Vulnerable Populations .............................................................. 70 4.1.6 Chemicals of Concern ..................................................................................................... 77 4.1.7 Background Weather Data .............................................................................................. 77 4.1.8 Railroads ............................................................................................................................ 79 4.1.9 Roadways .......................................................................................................................... 80 4.2 Release Plume Analysis 81 4.2.1 Background Plume Analysis Parameters ..................................................................... 82 4.2.2 Chemicals of Concern for Plume Analysis ................................................................... 83 4.2.3 Basis for Plume Analysis ................................................................................................. 86 4.3 Ammonia Gas Summary 87 4.4 Propane Summary 91 4.5 Sulfuric Acid Summary 95 5.0 CHEMICAL PLUME ANALYSIS ......................................................................................... 99 5.1 Pinch Point – Richmond #1 101 5.1.1 Scenario 1: Ammonia ................................................................................................... 103 5.1.2 Scenario 2: Propane ..................................................................................................... 105 5.1.3 Scenario 3: Sulfuric Acid .............................................................................................. 108 5.2 Pinch Point – Richmond #2 110 5.2.1 Scenario 1: Ammonia ................................................................................................... 112 5.2.2 Scenario 2: Propane ..................................................................................................... 114 5.2.3 Scenario 3: Sulfuric Acid .............................................................................................. 117 5.3 Pinch Point – Martinez #3 119 5.3.1 Scenario 1: Ammonia ................................................................................................... 121 5.3.2 Scenario 2: Propane ..................................................................................................... 123 5.3.3 Scenario 3: Sulfuric Acid .............................................................................................. 126 5.4 Pinch Point – Bay Point #4 128 5.4.1 Scenario 1: Ammonia ................................................................................................... 130 5.4.2 Scenario 2: Propane ..................................................................................................... 132 5.4.3 Scenario 3: Sulfuric Acid .............................................................................................. 135 5.5 Pinch Point – Antioch #5 137 5.5.1 Scenario 1: Ammonia ................................................................................................... 139 5.5.2 Scenario 2: Propane ..................................................................................................... 141 5.5.3 Scenario 3: Sulfuric Acid .............................................................................................. 144 6.0 INTEGRATION OF DATA WITH GIS ............................................................................. 146 7.0 EMERGENCY RESPONSE AND MITIGATION .......................................................... 147 8.0 SUMMARY .............................................................................................................................. 149 9.0 CONCLUDING STATEMENT ........................................................................................... 159 APPENDICES APPENDIX A Pipeline Details APPENDIX B Critical Facilities Data APPENDIX C ALOHA Background Data Hazardous Materials Commodities Flow Study with Special Focus on Sea Level Rise and Flood Risk Contra Costa County, California August 2019 Contra Costa Health Services, Hazardous Materials Programs TAIT Environmental Services, Inc. 1.0 Introduction The project consisted of the completion of an initial Hazardous Materials Commodities Flow Study (Flow Study), the results of which were utilized to prepare a Community Risk Assessment for Hazardous Materials (CRA) for Contra Costa Health Services, Hazardous Materials Programs (CCHSHMP). The project was restricted to the coastal areas of the Contra Costa County in areas affected by rising tides. 1.1 Project Objectives The proposed overall structure for the completion of the project covered two (2) distinct areas of focus. An initial Flow Study was completed, and the results of the Flow Study were utilized to prepare a CRA for the coastal areas of Contra Costa County. The objective of the Flow Study portion of this project was to determine the potential effects/consequences of a chemical spill on critical and vulnerable populations and facilities in the coastal cities of Contra Costa County. The primary focus of the Flow Study was to look at this with respect to rail transport of hazardous chemicals through the County, and particularly within areas of the county where the rail lines may be susceptible to rising tides and flooding risks from changes in our climate. Chemical data from industries in the County helped to determine what types of hazardous chemicals were being transported through the County via rail. Three chemicals of concern (COCs) were determined from the railroad data, and these chemicals (ammonia/anhydrous ammonia, propane, and sulfuric acid) were used in the plume analysis in the CRA portion of this report. Utilization of this information allowed for the study to focus on and determine a series of vulnerable points (“pinch points”), primarily along the rail lines. Additional information used to locate the pinch points consisted of a review potential flooding due to rising tides, with information available from the Adapting to Rising Tides Program, locations of critical facilities and vulnerable populations, areas of high probability of liquefaction resulting from earthquakes, and specific arterial roads that could be affected by disruption of rail transport of hazardous materials. Once specific pinch points were located, a comprehensive CRA was performed to assess worst-case