Draft_Work_Plan_LTM_of_Sites_FT-02,_FT-03,_OT-04,_DP-05,_DP-06,_and_OT-07.pdf

Draft Work Plan

Long Term Management (LTM) of Sites FT-02, FT-03, OT-04, DP-05, DP-06, and OT-07

Dobbins Air Reserve Base Marietta, Georgia

Prepared for:

Dobbins Air Reserve Base 531 Atlantic Avenue Marietta, Georgia

AFCEE Contract No. FA8903-10-D-8596 Project No. FGWB-2011-4302, FGWB-2011-4304, and FGWB-2011-4305

ECOS Task Order No. 0044

HydroGeoLogic Inc

Tetra Tech EM, Inc.

July 2011

LTM of Sites FT-02, FT-03, OT-04, DP-05, Draft Work Plan DP-06, and OT-07 ECOS Task Order 0044 Dobbins Air Reserve Base July 2011 i

Table of Contents

Section Page

1.0 INTRODUCTION

1.1 Project Staff

2.0 SCOPE OF WORK

3.0 EQUIPMENT LOCATION, STORAGE AND SECURITY

4.0 TRANSPORTATION

5.0 HEALTH AND SAFETY

6.0 LONG TERM MANAGEMENT ROD FOR SITE DP-05

6.1 Review Existing Information and Guidelines

6.2 Decision Document/Record of Decision

6.3 Preparation of Public Information Guidance Documents for DP-05

7.0 LONG TERM MANAGEMENT ACTIVITIES

7.1 Inspection and Maintenance of DPE System at DP-05

7.2 Semi-Annual Vegetation Removal

7.3 Gravel Access Road Inspection and Maintenance

7.4 Groundwater Monitoring Well Inspection

7.5 Well and Protective Bollard Painting/Maintenance (DP-05)

7.6 Inspection of Land use Controls

8.0 DECONTAMINATION PROCEDURES

8.1 Personal Protective Equipment Decontamination

8.2 Water Level Measurement Equipment Decontamination

9.0 REPORTING

9.1 Dual Phase Extraction System Inspection Report

9.2 Long Term Management Report

10.0 REFERENCES

List of Figures

Figure 1.1 Project Organization and Management

List of Attachments

Attachment 1 Dual Phase Extraction System Checklist

Attachment 2 Groundwater Monitoring Well Checklist

1.0 INTRODUCTION

HydroGeoLogic, Inc., (HGL) received ECOS Task Order (TO) No. 0044 from The United States

Air Force Center for Environmental Excellence (AFCEE) under Contract No. FA8903-10-D-

8596 to perform Long Term Management (LTM) of Sites FT-02, FT-03, OT-04, DP-05, DP-06, and OT-07 at the Dobbins Air Reserve Base (ARB), an installation of the Air Force Reserve

Command (AFRC) located in Marietta, Georgia. To support the execution of this task order, HGL subcontracted to Tetra Tech Inc. (Tetra Tech). Tetra Tech has prior experience providing support to Dobbins ARB at Site DP-05. Tetra Tech and HGL will perform the LTM requirements of this TO as defined in the Statement of Work (SOW).

This work plan was prepared based on information contained in the proposal prepared for the

LTM at the above referenced sites. This work plan presents and discusses the activities to be conducted at these sites under the ECOS TO (ECOS 0044). This work plan will include the following information:

Project staff and qualifications;

Location and security of supplies and equipment staged for use under ECOS 0044

Spill and discharge control procedures;

Transportation issues;

Health and safety plan (HASP) (ECOS 0044);

Preparation of a LTM Record of Decision (ROD) for Site DP-05;

Performance of LTM activities at all six sites in the SOW;

Decontamination procedures for field equipment; and

Reporting requirements.

1.1 Project Staff

As shown in Figure 1.1, Cathy Nelson will serve as the HGL Point of Contact (POC) for this TO, and Kellie Warriner will serve as the Tetra Tech POC.

The project manager for HGL will be Mr. Robert Keskonis. The project manager for Tetra Tech will be Mr. Andrew Kandray, who will also provide senior management and quality assurance support to this project. Mr. Christopher Jones will serve as technical lead for all activities

Figure 1.1

PROJECT ORGANIZATION AND MANAGEMENT

Jessica Vickers, Tt

HydroGeoLogic, Inc. (POC)

VP, Business Operations Cathy Nelson

Project Manager Andrew Kandray, Tt

Tetra Tech Division (POC) Manager, Contracting Officer

Kellie Warriner

Task Leads Satara Thomas, Tt Didi Fung, EIT, Tt

Environmental professionals and administrative support staff located in Georgia are available to provide additional technical support to the project as required in the following disciplines:

CADD, GIS, field technicians, chemistry, geology, and engineering.

Tt = Tetra Tech, Inc.

Technical Lead Christopher Jones, Tt

HydroGeoLogic, Inc.

Project Manager Robert Keskonis

Professional Engineer

Tim Bricker, PE, Tt conducted under this TO. Mr. Jones is a geologist who has extensive knowledge and experience with subsurface contamination investigation and remediation. Also assisting Mr. Kandray and

Mr. Jones will be Satara Thomas and Didi Fung, who will provide support in conducting the field activities. Tim Bricker, a Georgia-licensed Professional Engineer (PE) will review and approve all reports required for submittal to the site regulator; the Georgia Department of Environmental

Protection (EPD).

Each of these individuals has previous experience and knowledge with the work and responsibilities assigned to them. The HGL /Tetra Tech team will draw on its extensive resources located in the vicinity of Dobbins ARB to conduct field work and prepare deliverables.

Additional personnel and resources from Tetra Tech’s Duluth, Georgia operations will be used to provide support to assure the quality of products and services, produce and submit deliverables, procure subcontractors, ensure adherence with agreed upon schedules, and interface with the

Dobbins ARB and AFRC POCs.

2.0 SCOPE OF WORK

Tetra Tech and HGL will provide the personnel, services, equipment, and materials necessary to perform ECOS 0044. Activities conducted during this LTM may include preparation of the ROD and public information documents for Site DP-05, inspection and maintenance of the mothballed dual phase extraction (DPE) system at Site DP-05, groundwater monitoring well inspections, well and protective bollard painting/maintenance at Site DP-05, semi-annual vegetation removal;

gravel access road inspection and maintenance, and inspection of land use controls (LUC) at all six sites.

Tetra Tech will perform activities associated with preparing for and conducting a DPE system inspection and performing maintenance to this system, preparing for and conducting groundwater monitoring well inspections, decision document (DD) and public information document preparation for Site DP-05, and reporting for LTM associated with groundwater monitoring well inspections at sites FT-02, FT-03, OT-04, DP-05, DP-06, and OT-07 located on the Dobbins

ARB.

The HGL and Tetra Tech team will perform activities associated with preparing for and conducting semi-annual vegetation removal, gravel access road inspection and maintenance, well and protective bollard painting/maintenance (at Site DP-05 only), inspection and repair of LUCs, and reporting for LTM for activities conducted by HGL. Tetra Tech will provide reporting for groundwater monitoring well inspections at sites FT-02, FT-03, OT-04, DP-05, DP-06, and OT-

07 located on the Dobbins ARB, which will be incorporated into the final LTM report. .

3.0 EQUIPMENT LOCATION, STORAGE AND SECURITY

Tetra Tech and HGL will bring all necessary supplies and equipment to Dobbins ARB when conducting field work at the base. Tetra Tech and HGL personnel and subcontractors must obtain security badges prior to entering the base. Badges are obtained at the front gate, located adjacent to Cobb Parkway. Personnel attempting to gain access to the base must present a valid driver’s license (or valid identification if riding as a passenger), proof of insurance, and vehicle registration. Dobbins ARB security staff will then contact the Base POC to verify Tetra

Tech/HGL’s reason for entry to base. After these criteria have been met, a pass will be issued.

4.0 TRANSPORTATION

Transportation for conducting inspection and maintenance of the mothballed DPE system at Site

DP-05, groundwater monitoring well inspections, well and protective bollard painting/maintenance at Site DP-05, semi-annual vegetation removal; gravel access road inspection and maintenance, and inspection of LUCs at all six sites will include the use of personally owned vehicles (POV) or rental vehicles to travel to and from the base as well as to travel around the base itself. POVs or rental vehicles will be subject to the security procedures described in Section 3.0 before entering the base. Tetra Tech and HGL personnel operating

POVs or rental vehicles on base will observe all traffic signs and signals, follow Georgia driving regualations, and obey appropriate instructions provided by base security or traffic enforcement personnel.

5.0 HEALTH AND SAFETY

A separate Level 2 HASP has been developed to include task-specific health and safety criteria.

The HASP is a stand-alone document that is being submitted in conjunction with this work plan.

All organizations conducting or participating in the field work associated with this investigation shall adhere to the HASP.

Throughout the field investigation, HGL / Tetra Tech, its subcontractors, and other organizations involved in efforts associated with the work described in this plan will take all appropriate measures to ensure the safety of site workers and the general public.

6.0 LONG TERM MANAGEMENT ROD FOR SITE DP-05

Tetra Tech will review existing information and prepare a DD to fulfill the requirement to implement LTM of the ROD for Site DP-05. The following subtasks detail each activity.

6.1 Review Existing Information and Guidelines

Tetra Tech will collect and review existing information about DP-05. Documents included in this review are investigation reports, the Corrective Action Plan (CAP) Part B for the site, and the operations and maintenance (O&M) manual for DP-05. These and other documents will be reviewed to prepare for and implement a DD for Site DP-05. Tetra Tech will also obtain and review relevant guidance documents for the DD, determine applicable alternate concentration limits

(ACL) for unrestricted use, and coordinate with the technical reviewers of the DD.

6.2 Decision Document/Record of Decision

The DD/ROD document will be prepared according to the applicable guidelines presented in the

Final Environmental Restoration Proposed Plan and Decision Document Procedure (AFCEE, December 31, 2009). This plan identifies four different types of RODs with respect to the information required. They are:

1). No Action ROD - Lead agency determines that no action is warranted.

2). No Further Action- (NFA) ROD - When a removal, remedial action, or interim remedial action has taken place and there are no longer any unacceptable risks.

3). Interim Action ROD - Lead agency determines that an interim remedial action is appropriate during various stages of the remedial investigation/feasibility study (RI/FS).

4). Contingency Remedy ROD - The lead agency may incorporate a contingency remedy if there is significant uncertainty regarding the ability of remedial options to achieve cleanup levels.

Tetra Tech, HGL, and Dobbins ARB personnel will determine the most appropriate type of ROD to develop for Site DP-05. The ROD will consist of a declaration, decision summary, and a responsiveness summary. The declaration will declare that the selected remedy satisfy the statutory and regulatory requirements of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) program. The decision summary will describe the impacts posed by the contamination identified at the site and a review of the remedial options proposed for the site. Finally, the responsiveness summary will provide an overview of comments and concerns from the community and the other local agencies in regards to the contamination at the site. Furthermore, the responsiveness summary will reflect how public comments played a role in the selection of the remedy.

6.3 Preparation of Public Information Guidance Documents for DP-05

Tetra Tech will prepare Public Information Guidance Documents for DP-05 using formats that conform to AFCEE guidance and past public documents developed for other Dobbins ARB sites.

These documents, including notification letters and updated fact sheets for Site DP-05, will be submitted to HGL, Air Force, and the applicable regulatory agencies for review. Tetra Tech will address comments from all stakeholders prior to submitting final versions for Air Force signature and regulator approval.

7.0 LONG TERM MANAGEMENT ACTIVITIES

Tetra Tech and HGL will conduct LTM requirements of ECOS 0044. LTM activities include inspection and maintenance at DP-05, semi-annual vegetation removal, inspection and maintenance of gravel access roads, groundwater monitoring well inspections at all sites excluding DP-05, well and protective bollard painting at DP-05, and maintaining LUCs at all six sites. The following subsections described each activity in detail.

7.1 Inspection and Maintenance of DPE System at DP-05

Tetra Tech anticipates conducting one inspection of the mothballed DPE system. During the inspection, the blower will be allowed to run for 30 minutes (assuming the DPE system is connected to a power source). Routine maintenance will also be conducted, including light cleaning and lubrication of equipment. Light maintenance activities for the DPE system may also include removal of any rainwater that may have accumulated in the oil water separator, air stripper, and Meyers Pumps; and spraying the SVE blower with a rust inhibitor to decrease the formation of rust inside the blower. Additionally, a checklist (see Attachment 1) will be prepared and used during the inspection to note the condition of the mothballed equipment and any repairs

(beyond the scope of this project) needed to restore the system to a fully operational status. Tetra

Tech anticipates that the mothballed DPE system will be inspected in late March 2012, with light maintenance also performed during the inspection event.

Tetra Tech will prepare and submit a draft DPE system inspection and maintenance report within

30 calendar days of completion of the inspection and maintenance event. As outlined in section

9.1, this report will describe the condition of the DPE system, discuss the maintenance activities performed during this inspection, identify any conditions that must be addressed to make the system operational but that were infeasible to repair while the system was mothballed, and make recommendations for future inspection and maintenance requirements.

7.2 Semi-Annual Vegetation Removal

HGL and Tetra Tech will perform one total acre of site and monitoring well access through two semi-annual vegetative removal events consisting of cutting and/or moving events in early fall

(October 2011) and in early summer (June 2012). Up to 300 yards of 10 foot wide paths will be cleared for each event. Clearing will be performed utilizing weed eaters and machetes or other hand tools as appropriate. All brush material will be left in place along the sides of the paths.

7.3 Gravel Access Road Inspection and Maintenance

HGL and Tetra Tech will maintain 2,300 total linear feet of existing 10 foot wide gravel access roads through two semi-annual events in October 2011 and June 2012. The maintenance events will include removing vegetation as needed and completing minor repairs as needed to maintain a relatively smooth gravel surface. If required, the gravel access repairs will utilize a rubber tire compact Skidsteer loader to place and grade delivered 57 stone gravel. HGL / Tetra Tech shall provide a letter type report detailing other recommendations beyond the scope of this task for repair or additional maintenance that exceeds a simple rut, washboard repair, or excessive vegetation removal.

7.4 Groundwater Monitoring Well Inspection

This task includes labor and equipment required to inspect the groundwater monitoring wells at

30 locations associated with five sites at the base (Sites FT-02, FT-03, OT-04, DP-06, and OT-

07). The inspection will be conducted to insure the casings, concrete pads, bollards, and well interiors are in good conditions and acceptable for use during future monitoring events. Tetra

Tech will use a water level meter to verify that the interior of each well casing is unobstructed and that groundwater is present within each well. The inspection is anticipated to take place in

April 2012. Tetra Tech will develop and complete a checklist (see Attachment 2) for the well inspections, based on guidelines for monitoring well installation and development presented in

Design and Installation of Monitoring Wells (U.S. Environmental Protection Agency [EPA], Region 4, February 18, 2008).

7.5 Well and Protective Bollard Painting/Maintenance (DP-05)

HGL / Tetra Tech will complete required maintenance and repairs found necessary to ensure the safety and security of 15 existing Site DP-05 groundwater monitoring wells. This may include rust removal and painting, well labeling, repair of metal covers and casings, and replacement of broken external well parts. The exterior of the steel pipe bollards will be painted bright yellow in color. All bollard maintenance will be in accordance with Dobbins ARB requirements.

7.6 Inspection of Land use Controls

HGL / Tetra Tech will inspect in place land use controls (LUCs) for six sites and report deviations / conditions and recommend remedies if required to ensure that the sites remain protective of human health and the environment. HGL / Tetra Tech will repair, replace, or install up to three warning / advisory signs for this task.

8.0 DECONTAMINATION PROCEDURES

The procedures described in the following subsections discuss decontamination of personal protective equipment (PPE) and water level measurement equipment. Decontamination procedures will follow guidelines established by Tetra Tech in accordance with EPA applicable standards.

Decontamination will occur in an area to be designated prior to implementation of the field activities. This area will be located outside of the working area to ensure that cross-contamination does not occur. Tetra Tech and HGL do not anticipate generating any hazardous or petroleum contact waste during the course of field activities conducted under ECOS 0044.

8.1 Personal Protective Equipment Decontamination

Personnel working in the field are required to follow specific procedures for decontamination prior to leaving the work area so that contamination is not spread offsite or to clean areas. All used solid waste PPE will be disposed of accordingly, as directed by the Dobbins ARB POC.

8.2 Water Level Measurement Equipment Decontamination

Field personnel will decontaminate the well sounder and interface probe before inserting and after removing them from each well. The following decontamination procedures will be used:

1. Wipe the sounding cable with a disposable cloth or paper towel.

2. Rinse with ASTM Type II deionized water.

3. Wash the equipment in detergent and water followed by a tap water rinse.

Spray bottles and paper towels will be utilized during the decontamination process. Damp paper towels generated during the decontamination procedures will be disposed of as non-hazardous solid waste. No net rinse water is expected to be generated.

9.0 REPORTING

Tetra Tech, in conjunction with HGL, anticipates preparation of two reports during this period of performance. The two subtasks below detail each report.

9.1 Dual Phase Extraction System Inspection Report

Following the completion of the inspection, Tetra Tech will prepare a DPE system inspection report that summarizes the condition of the system at DP-05, the maintenance performed during the period of performance, and the additional maintenance needed to repair/replace the system equipment and piping and allow reinstallation and restarting of the DPE system that is beyond our limited capabilities to address during routine maintenance to be conducted under this task. This document will be submitted to HGL and the Air Force for review and Tetra Tech will address any comments received in a revised report with the submittal of the final report anticipated for the end of May 2012.

9.2 Long Term Management Report

During the last month of the period of performance, Tetra Tech and HGL will jointly prepare and submit a report that describes and summarizes the maintenance activities conducted during the period of performance. A draft report will be submitted to the Air Force For review and Tetra

Tech and HGL will address comments in a revised version of the report. Submittal of the final report to the Air Force is anticipated for late July of 2012.

10.0 REFERENCES

1. Air Force Center for Engineering and the Environment (AFCEE). 2009. Final

Environmental Restoration Proposed Plan and Decision Document Procedure.

December 31.

2. United States Environmental Protection Agency (EPA). 2008. Region 4 Science and

Ecosystem Support Division (SESD). Design and Installation of Monitoring Wells.

February 18.

3. Tetra Tech EM, Inc. 2004. Remediation System Operation and Maintenance Manual.

September (revised).

ATTACHMENT 1

DPE System Checklist

(Five Pages)

DOBBINS ARB

INSPECTION AND MAINTENANCE OF DPE SYSTEM

Dobbins ARB 1 of 5

Inspector Date

Weather

Seatainer

1. Any visible damage? YES NO If yes, explain

2. What is the overall condition of the seatainer?

3. Is the seatainer usable and able to withstand relocation? YES NO If no, explain why not.

4. Please note any repairs made to seatainer.

5. Please note any repairs needed for future use.

Additional Comments/Notes:

Dobbins ARB 2 of 5

External Features

1a. What is the condition of the external water lines (1-inch PVC)?

1b. Are any lines salvageable? YES NO If so, approximate total salvageable footage.

2a. What is the condition of the external air lines (3-inch PVC)?

2b. Are any lines salvageable? YES NO If so, approximate total salvageable footage.

3a. What is the condition of the power box?

3b. What is the condition of the switch board?

3c. Do all switches work? YES NO If no, explain.

4. What is he condition of the bypass valve and hoses for the carbon treatment system?

5. What is the condition of the telemetry system and wires?

6. Please note any repairs made to any external features.

7. Please note any repairs needed for future use.

Dobbins ARB 3 of 5

Soil Vapor Extraction System

1. Is the Roots vacuum blower operational? YES NO

2. Was the SVE blower allowed to run for 30 min? YES NO

3. What is the condition of the PVC piping (3-inch)?

4. Do all air gauges work? YES NO

5. Was a rust inhibitor sprayed into blower? YES NO

6. Was the SVE blower moisture separator (holding tank) drained? YES NO

6a. Was transfer pump P101 turned on to drain the moisture separator? YES NO

7. Check the condition of the V-belt drive. Note tension, or any damage/deterioration.

8. Please note any repairs made to SVE system.

9. Please note any repairs needed for future use.

Dobbins ARB 4 of 5

Groundwater Treatment System

1. What is the condition of the PVC pipes on the manifold and throughout the interior of the seatainer?

2. Do the flow gauges work? YES NO

3. What is the condition of the Oil Water Separator?

4. What is the condition of transfer pump P-102?

5. What is the condition of the five Grundfos submersible pumps?

6. What is the condition of the five transducers?

7a. What is the condition of the four HDPE air stripper trays?

7b. What is the condition of the rubber spacers?

8a. What is the condition of the Baldor Rotron 56C blower?

8b. Was the Baldor Rotron 56C blower allowed to run? YES NO How long?

9. What is the condition of transfer pump P-103?

10. Do the three level switches move freely? YES NO

Dobbins ARB 5 of 5

Groundwater Treatment System (Continued)

11. Do the filters in FIL-103 and FIL-104 need to be replaced? YES NO

12. Please note any repairs made to the groundwater treatment system.

13 Please note any repairs needed for future use.

ATTACHMENT 2

Groundwater Monitoring Well Checklist

(Two Pages)

Dobbins ARB Groundwater Monitoring Well Inspection

Dobbins ARB 1 of 2

Inspector Date

Weather

Well ID Site Name

Well type: Flush Mount Stickup

If flush mount, are all manhole bolts present? YES NO NA

Well diameter: inches

Well cap present? YES NO

Lock present? YES NO

Well material:

Depth to water: ft. below top of casing

Total well depth: ft. below top of casing

Sediment present in well? YES NO

Borehole depth (if known): ft

Screened interval (if known): ft to ft

Screen slot size (if known): inches

Depth to sand pack (if known): ft. below top of casing

Depth to bentonite seal (if known): ft. below top of casing

Any obstructions observed in well? YES NO If yes, explain:

Concrete pad present? YES NO

Concrete pad damaged? YES NO If yes, explain:

Dobbins ARB Groundwater Monitoring Well Inspection

Dobbins ARB 2 of 2

Are protective bollards present? YES NO

If not present, are protective bollards needed? YES NO NA