HSI SITE 10071, GEORGIA PORTS AUTHORITY-BAINBRIDGE TERMINAL HSI SITE 10071, GEORGIA PORTS AUTHORITY-BAINBRIDGE

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  • H S I S I T E 1 0 0 7 1 , G E O R G I A P O R T S A U T H O R I T Y - B A I N B R I D G E T E R M I N A L

    SEVENTH VIRP SEMI-ANNUAL PROGRESS REPORT

    April 29, 2016

    Submitted to:

    GEORGIA ENVIRONMENTAL PROTECTION DIVISION

    Georgia Department of Natural Resources

    Response and Remediation Program

    Suite 1054 East Tower 2 Martin Luther King Jr. Drive, S.E.

    Atlanta, Georgia 30334

    Prepared for:

    GEORGIA PORTS AUTHORITY

    P.O. Box 2406

    Savannah, Georgia 31402

    Prepared by:

    ENVIRONMENTAL INTERNATIONAL CORPORATION

    161 Kimball Bridge Road, Suite 100, Alpharetta, GA 30009, USA

    Phone 770.772.7100 • Fax 770.772.0555

    http://www.eicusa.com

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    TABLE OF CONTENTS

    LIST OF TABLES ......................................................................... iv 

    LIST OF FIGURES ........................................................................ v 

    LIST OF PHOTOGRAPHS .......................................................... vi 

    LIST OF ATTACHMENTS ......................................................... vii 

    LIST OF EXHIBITS ................................................................... viii 

    1.  Introduction ........................................................................... 1 

    1.1  PRIMARY OBJECTIVES .............................................................................................. 1 

    2.  EPD Comment Letter ........................................................... 2 

    3.   Groundwater Monitoring ...................................................... 5 

    3.1  GROUNDWATER MONITORING FIELD PROGRAM .......................................... 5 

    3.1.1  Sampling Protocol ........................................................................................................................ 5 

    3.1.2  Site Access ..................................................................................................................................... 5 

    3.1.3  Field Procedures ........................................................................................................................... 6 

    3.1.3.1  Groundwater Gauging ........................................................................................................... 6 

    3.1.3.2  Groundwater Sampling .......................................................................................................... 6 

    3.2  QUALITY ASSURANCE AND QUALITY CONTROL ............................................. 7 

    3.2.1  QA Evaluation .............................................................................................................................. 7 

    3.3  DATA EVALUATION ................................................................................................... 7 

    3.3.1  Groundwater Potentiometric Map ............................................................................................. 8 

    3.3.2  Horizontal Extent of COC Plumes ............................................................................................ 8 

    3.3.2.1  Alpha-BHC Plume ................................................................................................................. 8 

    3.3.2.2  Beta-BHC Plume .................................................................................................................... 8 

    3.3.2.3  Delta-BHC Plume .................................................................................................................. 9 

    3.3.3  Vertical Extent of COC Plumes ........................................................................................... 9 

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    3.3.4  BHC Plume Stability .................................................................................................................... 9 

    4.  FLINT RIVER MIXING MODEL ..................................... 10 

    4.1  MODEL SETUP .......................................................................................................... 10 

    4.1.1  Groundwater Mass Flux ............................................................................................................ 11 

    4.1.2  Groundwater Concentration ..................................................................................................... 12 

    4.1.3  Flint River Flow Rate ................................................................................................................. 12 

    4.1.3.1  Average River Discharge ..................................................................................................... 12 

    4.1.3.2  1Q10 River Discharge .......................................................................................................... 13 

    4.1.4  Upstream River Concentration ................................................................................................. 13 

    4.2  MIXING ZONE CALCULATION ............................................................................. 13 

    4.3  RESULTS ..................................................................................................................... 14 

    5.  SITE CLOSURE .................................................................. 16 

    5.1  SITE COVENANTS .................................................................................................... 16 

    5.1.1  AOC Locations and Legal Descriptions .................................................................................. 16 

    5.2  MAINTENANCE AND MONITORING PLAN ...................................................... 17 

    5.3  MONUMENTS ............................................................................................................ 17 

    5.4  COMPLIANCE STATUS REPORT ........................................................................... 17 

    6.  Summary ............................................................................... 18 

    7.  Summary of Hours ............................................................... 19 

    8.  References ............................................................................ 20 

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    LIST OF TABLES Table 3-1: Well Gauging Data for March 2016 Monitoring Event

    Table 3-2: Chronological Groundwater Quality Field Parameters Summary

    Table 3-3: Groundwater Pesticides Data Summary

    Table 3-4: Historical Groundwater Potentiometric Surface Elevation

    Table 4-1: Flint River Model Concentrations

    Table 4-2: Flint River Model Results under average flow

    Table 4-3: Flint River Model results 1Q10 flow

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    LIST OF FIGURES Figure 3-1: Site Map

    Figure 3-2: March 2016 Groundwater Potentiometric Surface Map

    Figure 3-3: March 2016 Alpha-BHC Isoconcentration Map

    Figure 3-4: March 2016 Beta-BHC Isoconcentration Map

    Figure 3-5: March 2016 Delta-BHC Isoconcentration Map

    Figure 4-1: Flint River Mixing Model Flow Path with March 2016 Groundwater

    Potentiometric Surface

    Figure 5-1: Uniform Environmental Covenant Monument Installation Locations for Areas of

    Concern 1 and 2

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    LIST OF PHOTOGRAPHS Photograph 5-1: AOC-1 Monument Installation

    Photograph 5-2: AOC-2 Monument Installation

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    LIST OF ATTACHMENTS A. March 2016 Well Purging and Sampling Field Logs

    B. March 2016 Groundwater Analytical Results

    C. Mixing Model USGS Data Source

    D. AOC-1 Legal Description

    E. AOC-2 Legal Description

    F. February 2016 AOC Boundary and UEC Monument Survey

    G. Monthly Summary of Hours Invoiced

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    LIST OF EXHIBITS

    A. Bainbridge Georgia Gulf Sulfur Manufacturing Plant Web Publication

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    Page 1

    1. Introduction On behalf of the Georgia Ports Authority (GPA), Environmental International Corporation (EIC) is pleased to submit the Seventh Semi-annual Progress Report to the Georgia Environmental Protection Division (EPD). This report was prepared as outlined in the Voluntary Investigation and Remediation Plan (VIRP) dated July 27, 2012 that EPD subsequently approved on November 2, 2012 under the Voluntary Remediation Program (VRP).

    1.1 PRIMARY OBJECTIVES

    The primary objectives of this report is to present a compilation of tasks conducted by EIC during the sixth-month time frame covering the period from November 2015 to April 2016. This report documents the following tasks, which EIC completed to create a better understanding of Site conditions and constituents of concern (COC) trends and to address concerns from the EPD:

     Addressing comments from EPD

     Continued evaluation of COC trends in groundwater

     Fl