Culebra Water Ranges – Flamenco Bay Water Area (MRS 03) and Luis Peña Channel (MRS 12) Culebra, Puerto Rico
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FINAL WORK PLAN Environmental Baseline Survey Culebra Water Ranges – Flamenco Bay Water Area (MRS 03) and Luis Peña Channel (MRS 12) Culebra, Puerto Rico November 16, 2012 Prepared under: Contract Task Order 0003 Contract No. W912DY-10-D-0015 Prepared for: U.S. Army Corps of Engineers, Jacksonville District 701 San Marco Boulevard Jacksonville, FL 33207 & U.S. Army Engineering and Support Center, Huntsville 4820 University Square Huntsville, AL 35816-1822 Prepared by: 1050 NE Hostmark Street, Suite 202 Poulsbo, Washington 98370 Review Signature: ____________________________________ Date: ___________Nov. 16, 2012 Mark Dollar, Tetra Tech EC, Inc. Quality Management Representative Environmental Baseline Survey Culebra Water Ranges MRS 03 and 12, Culebra, Puerto Rico Final Work Plan TABLE OF CONTENTS 1.0 INTRODUCTION ............................................................................................................. 1-1 1.1 PROJECT AUTHORIZATION ........................................................................... 1-1 1.2 PROJECT PURPOSE AND SCOPE ................................................................... 1-1 1.3 WORK PLAN ORGANIZATION ...................................................................... 1-1 1.4 PROJECT PROPERTY DESCRIPTION ............................................................ 1-3 1.5 PROJECT HISTORY .......................................................................................... 1-3 1.6 CURRENT AND PROJECTED LAND USE ..................................................... 1-4 1.7 PREVIOUS INVESTIGATIONS ........................................................................ 1-6 1.7.1 1991 Inventory Project Report .............................................................. 1-6 1.7.2 1995 Archives Search Report ............................................................... 1-6 1.7.3 1995 Interim Remedial Action.............................................................. 1-6 1.7.4 1997 Final Engineering Evaluation/Cost Analysis ............................... 1-6 1.7.5 2004 UXO Construction Support.......................................................... 1-7 1.7.6 2004 Archives Search Report Supplement ........................................... 1-7 1.7.7 2005 Revised Inventory Project Report ................................................ 1-8 1.7.8 2005 Supplemental Archives Search Report ........................................ 1-8 1.7.9 Cultural and Archeological Resources .................................................. 1-8 1.7.10 2006 and 2007 Underwater Investigations ........................................... 1-9 1.8 INITIAL SUMMARY OF MEC RISK ............................................................... 1-9 1.9 INITIAL CONCEPTUAL SITE MODEL ......................................................... 1-10 2.0 TECHNICAL MANAGEMENT PLAN ........................................................................... 2-1 2.1 INTRODUCTION ............................................................................................... 2-1 2.2 OBJECTIVES ...................................................................................................... 2-1 2.3 EBS ORGANIZATION ....................................................................................... 2-1 2.4 TETRA TECH EC PERSONNEL ....................................................................... 2-1 2.4.1 Program Management ........................................................................... 2-1 2.4.2 Project Manager .................................................................................... 2-2 2.4.3 Field Investigation Coordinator ............................................................ 2-2 2.4.4 Underwater Lead ................................................................................... 2-2 2.4.5 Field Operations Lead / Quality Control Manager ............................... 2-2 2.4.6 Hydrographers and Geophysicists ........................................................ 2-2 2.4.7 Biologists .............................................................................................. 2-3 2.5 COMMUNICATION AND REPORTING ......................................................... 2-4 2.5.1 Recordkeeping ...................................................................................... 2-4 2.5.2 Field Communications and Reporting .................................................. 2-4 2.6 DELIVERABLES ................................................................................................ 2-4 2.6.1 Environmental Baseline Survey Report ................................................ 2-5 2.6.2 MBE Deliverables ................................................................................. 2-6 2.6.3 Sidescan Sonar Deliverables ................................................................. 2-6 2.6.4 Underwater Video Deliverables ............................................................ 2-6 2.6.5 Targets................................................................................................... 2-7 2.7 SCHEDULE ......................................................................................................... 2-7 2.8 PERIODIC REPORTING .................................................................................... 2-7 2.9 COSTING AND BILLING.................................................................................. 2-7 CTO No. 0003 iii November 16, 2012 Contract No. W912DY-10-D-0015 Environmental Baseline Survey Culebra Water Ranges MRS 03 and 12, Culebra, Puerto Rico Final Work Plan TABLE OF CONTENTS (Continued) 2.10 PROJECT PUBLIC RELATIONS SUPPORT .................................................... 2-7 2.11 FIELD OPERATION MANAGEMENT PROCEDURES .................................. 2-8 2.11.1 General Approach ................................................................................. 2-8 2.11.2 Mobilization .......................................................................................... 2-9 2.11.3 Environmental Baseline Survey ............................................................ 2-9 3.0 FIELD INVESTIGATION PLAN .................................................................................... 3-1 3.1 OVERALL APPROACH TO EBS ACTIVITIES ............................................... 3-1 3.1.1 Site Characterization Processes ............................................................ 3-1 3.1.2 Measurement Quality Objectives .......................................................... 3-2 3.2 IDENTIFICATION OF AREAS OF CONCERN ............................................... 3-4 3.3 LOCATION SURVEYS AND MAPPING PLAN .............................................. 3-7 3.3.1 Bathymetry Survey ............................................................................... 3-7 3.3.2 Sidescan Sonar Survey .......................................................................... 3-8 3.3.3 Underwater Video Survey..................................................................... 3-8 3.3.4 Data Spatial Density ............................................................................. 3-9 3.3.5 Survey Data Collection Areas and Line Plans ...................................... 3-9 3.3.6 Equipment Specifications ................................................................... 3-12 3.3.7 Survey Vessel...................................................................................... 3-16 3.3.8 Survey Systems Schematic ................................................................. 3-17 3.4 GEOSPATIAL INFORMATION AND ELECTRONIC SUBMITTALS ........ 3-20 3.4.1 Coordinates ......................................................................................... 3-20 3.4.2 Control Points ..................................................................................... 3-20 3.4.3 Accuracy ............................................................................................. 3-20 3.4.4 Map Requirements .............................................................................. 3-20 3.4.5 Monument Description ....................................................................... 3-21 3.4.6 Digital Format for Geographic Information System Data .................. 3-21 3.4.7 Quality Control ................................................................................... 3-22 3.5 DATA COLLECTION AND PROCESSING PROCEDURES ........................ 3-22 3.5.1 General Requirements and Procedures ............................................... 3-22 3.5.2 Positioning .......................................................................................... 3-23 3.5.3 Site Control Network .......................................................................... 3-24 3.5.4 Multibeam Echosounder Survey ......................................................... 3-24 3.5.5 Multibeam Echosounder Data Processing .......................................... 3-25 3.5.6 Quality Assurance/Quality Control for Multibeam Echosounder Data ..................................................................................................... 3-26 3.5.7 Sidescan Sonar Survey ........................................................................ 3-27 3.5.8 Sidescan Sonar Data Processing ......................................................... 3-28 3.5.9 Quality Assurance/Quality Control for Sidescan Sonar Data ............. 3-28 3.5.10 Benthic Characterization and Habitat Assessment ............................. 3-28 4.0 QUALITY CONTROL PLAN .........................................................................................