PACIFIC AIR FORCES EGIONAL SUPPORT CENTER...Apr 01, 2016 · pacific air forces. regional support center. joint base elmendorf-richardson, alaska. pcb-contaminated soil removal action

PACIFIC AIR FORCES REGIONAL SUPPORT CENTER JOINT BASE ELMENDORF-RICHARDSON, ALASKA PCB-CONTAMINATED SOIL REMOVAL ACTION 2015 INTERIM DATA REPORT SUMMARY

PORT HEIDEN, ALASKA FINAL APRIL 2016

PACIFIC AIR FORCES REGIONAL SUPPORT CENTER JOINT BASE ELMENDORF-RICHARDSON, ALASKA PCB-CONTAMINATED SOIL REMOVAL ACTION 2015 INTERIM DATA REPORT SUMMARY PORT HEIDEN, ALASKA FINAL APRIL 2016

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TABLE OF CONTENTS SECTION PAGE

ACRONYMS AND ABBREVIATIONS ..................................................................................iii

1.0 PROJECT OVERVIEW .................................................................................................1-1

2.0 2015 FIELDWORK .......................................................................................................2-1

2.1 EXCAVATION ACTIVITIES ..............................................................................2-2

2.1.1 Radio Relay Station ...............................................................................2-2

2.1.2 Drum Storage Area ................................................................................2-3

2.1.3 Torn and Spilled Bag .............................................................................2-3

2.1.4 Quantities ...............................................................................................2-4

2.1.5 Excavated Soil Transportation and Disposal .........................................2-4

2.2 STORAGE AREA 1 FINAL DECOMMISSIONING ..........................................2-6

2.3 ANALYTICAL SAMPLING ...............................................................................2-6

2.3.1 Soil PCB Analysis ..................................................................................2-7

2.3.2 Equipment Decontamination Confirmation Samples .............................2-8

2.3.3 Soil Lead Analyses .................................................................................2-9

2.3.4 Soil VOC and GRO Analysis .................................................................2-9

2.4 ASBESTOS SAMPLING ...................................................................................2-10

2.5 WINTER STORAGE OF EXCAVATED MATERIALS ..................................2-11

3.0 CONCLUSION AND FUTURE ACTIVITIES .............................................................3-1

4.0 REFERENCES ...............................................................................................................4-1

TABLES

Table 2-1 PCB-Contaminated Soil Loading, Transport, and Disposal Totals for 2015 .. 2-6

Table 2-2 Soil Samples Collected and Submitted for PCB Analysis in 2015 ................. 2-8

Table 2-3 Asbestos Samples Collected and Submitted for Analysis in 2015 ............... 2-11

Table 2-4 LiftPacs Staged Onsite Over Winter 2015-2016 ........................................... 2-12

TABLE OF CONTENTS (Continued) SECTION PAGE

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APPENDICES Appendix A Figures

Appendix B Photograph Log

Appendix C Waste Documentation

Appendix D Data Quality Assessment

Appendix E Asbestos Removal Action Report and Asbestos Sample Summary

Appendix F Estimate of Remaining Quantities of PCB-Contaminated Soil

Appendix G ADEC Approval Letter

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ACRONYMS AND ABBREVIATIONS

ACM asbestos-containing material

ADEC Alaska Department of Environmental Conservation

AFCEC Air Force Civil Engineering Center

bags LiftPacs, or an equivalent containment device

CERCLA Comprehensive Environmental Response, Compensation, and Liability Act

cy cubic yards

DQO data quality objective

DSA drum storage area

ELM ELM Solutions Corporation

EMI Environmental Management, Inc.

GRO gasoline-range organics

Jacobs Jacobs Engineering Group Inc.

KEMRON KEMRON Environmental Services, Inc.

m2 square meters

mg/kg milligrams per kilogram

MS/MSD matrix spike/matrix spike duplicate

NTCRA non-time-critical removal action

PCB polychlorinated biphenyl

ppm parts per million

RCRA Resource Conservation and Recovery Act

RRS Radio Relay Station

SA1 Storage Area 1

SRA2 Soil Removal Area 2

TCB trichlorobenzene

TCE trichloroethene

TCLP toxicity characteristic leaching protocol

TSCA Toxic Substances Control Act

USACE U.S. Army Corps of Engineers

USAF U.S. Air Force

VOC volatile organic carbon

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1.0 PROJECT OVERVIEW

This 2015 interim data report summary describes the current status of the removal action of

polychlorinated biphenyl (PCB)-contaminated soil at the former U.S. Air Force (USAF)

Radio Relay Station (RRS) at Port Heiden, Alaska. Removal of PCB-contaminated soil was

initiated in 2009 as part of the Record of Decision for Port Heiden Radio Relay Station

(USAF 2009).

The work described in this report was conducted for the Air Force Civil Engineer Center

(AFCEC) under the U.S. Army Corps of Engineers (USACE), Alaska District Worldwide

Environmental Remediation Services Contract No. W912DY-10-D-0027, Task Order ZJ01.

The work was performed in accordance with the requirements of the Alaska Department of

Environmental Conservation (ADEC), Alaska Administrative Code, Title 18, Section 75.360

(ADEC 2016) and the Comprehensive Environmental Response, Compensation, and Liability

Act (CERCLA). Other regulatory considerations for the project include the Resources

Conservation and Recovery Act (RCRA) and the Occupational Safety and Health

Administration asbestos regulations, as laid out in the Code of Federal Regulations Title 29,

sections 1910 and 1926.

This work was conducted in accordance with the 2013 work plan (USAF 2013), the 2014

sampling and analysis plan (USAF 2014), and the 2015 drum storage area (DSA) work plan

addendum (USAF 2015). The work was conducted by KEMRON Environmental Services,

Inc. (KEMRON), with support from Jacobs Engineering Group Inc. (Jacobs) and ELM

Solutions Corporation (ELM). Asbestos removal at the DSA was conducted according to the

2015 asbestos removal plan prepared by Environmental Management, Inc. (EMI) (EMI 2015).

Excavations of PCB-contaminated soil began in May 2015 at Soil Removal Area 2 (SRA2),

the southern portion of the former RRS site. Maps of the site layout are presented in

Figures A-1 and A-2. Contaminated soil was excavated from locations where PCB

concentrations were greater than 1 part per million (ppm), and was loaded directly into

LiftPacs (also known as Super Sacks), or equivalent containment devices (referred to


throughout this document as bags). Filled bags were stored on a liner adjacent to the work

area to await transport and disposal. All bags that had been filled prior to 1 July 2015,

including bags remaining from 2013 and 2014 activities, were transported to, and staged at,

the barge landing at Port Heiden by mid-July.

Excavation of the soil and liner covering the DSA (39.9 tons) was conducted prior to the

hauling operation and was staged at the barge landing. Excavations below the liner at the

DSA began after completing these hauling operations. While awaiting excavation

confirmation samples from the DSA, excavations intermittently continued at the SRA2. A

second hauling operation was performed in mid-August to stage the excavated additional

SRA2 soil at the barge landing in preparation for arrival of the barge. All DSA material

excavated after the initial 39.9 tons remains staged onsite pending final disposal plans.

Previous reports indicated the potential presence of asbestos-containing material (ACM) in

the area. During the initial excavation of the DSA, suspected ACM was discovered, and

excavation activities were halted. EMI conducted the asbestos removal from the DSA area

from 16 through 23 September, 2015.

In total, 1,787 bags of PCB-contaminated soil with weights measured onsite with a wheel

loader’s integrated scale (hereafter referred to as estimated weights) totaling 12,659.6 tons

were generated during the 2015 field effort. A total of 1,632 bags with a certified weight of

11,822.36 tons were transported via truck, barge, and rail to the final disposal facility in

Arlington, Oregon. There are 636 bags with an estimated total weight of 4,203 tons remaining

at Port Heiden. These bags will be transported and disposed of as part of the 2016 field

effort. This interim report is organized as follows:

• Section 1.0 summarizes the project and progress made in 2015.

• Section 2.0 describes the fieldwork and analytical sampling results for PCB-contaminated soil and ACM.

• Section 3.0 summarizes the conclusions from the 2015 efforts and presents recommendations for future activities.

• Section 4.0 lists the supporting documents used in this report.


In addition, the following appendices have been provided to supplement the information

presented in this report:

• Appendix A presents project figures. The figures show the grids that have been delineated, characterized, remediated, and targeted for future sampling. Other figures include the locations and results of asbestos sampling, the locations of overwintered bags, and maps of the site layout.

• Appendix B presents photographs of project activities.

• Appendix C presents waste documentation, including certificates of disposal, bag totals, and certified weight totals for all PCB-contaminated soil disposed of in 2015.

• Appendix D presents the data quality assessment, and associated ADEC Laboratory Data Review Checklists.

• Appendix E presents the asbestos removal action report, prepared by EMI, and asbestos sampling summary and results.

• Appendix F presents an estimate of the remaining quantities of PCB-contaminated soil, including a figure, which presents the locations and estimated quantities of PCB-contaminated soil at various areas at Port Heiden.

• Appendix G presents the ADEC approval letter for the draft report.


2.0 2015 FIELDWORK

From 14 May to 29 September 2015, Jacobs directed the excavation and removal of an

estimated 12,260 tons of PCB-contaminated soil from the SRA2 in the southern portion of the

former RRS site, from Access Road, from Site Road and Tundra Sections 89 through 92, and

from the DSA (Figure A-2). This soil was excavated directly from targeted grid cells into 8.5

cubic yard (cy) bags. In total, 1,787 bags were generated. The contaminated soil was

characterized under the Toxic Substances Control Act (TSCA) (Title 15 of the U.S. Code,

§2605) as either TSCA (PCB concentrations greater than or equal to 50 milligrams per

kilogram [mg/kg]) or non-TSCA (PCB concentrations less than 50 mg/kg, but greater than or

equal to 1 mg/kg). TSCA bag labels were denoted with a “T” and staged separately from non-

TSCA bags. The TSCA bags contained an extra plastic liner, which was manually placed

inside the bag as a secondary containment barrier.

During the 2015 field season, contaminated soil was transported offsite or staged onsite for

offsite transport and disposal in 2016 as follows:

• A total of 317 bags of TSCA soil, with a certified total weight of 2,145.78 tons, were transferred to barges contracted by ELM, and transported to Chemical Waste Management in Arlington, Oregon for disposal.

• A total of 1,315 bags containing non-TSCA soil with a certified total weight of 9,676.58 tons were transferred to barges contracted by ELM and transported to Columbia Ridge Landfill in Arlington, Oregon. Included in this total were six bags, weighing 10.5 tons, of uncontaminated waste (bags used to build the barge ramp) disposed of by ELM, and approximately 27.9 tons of mistakenly excavated non-contaminated soil, disposed of by Jacobs, which were also transported to Columbia Ridge Landfill (see Section 2.1.1 for additional information).

• A total of 596 bags of non-TSCA soil (weighing an estimated 3,988.2 tons), 35 bags of TSCA soil (approximately 199.8 tons), and all DSA debris were staged onsite for disposal during the 2016 field season. In addition, five bags of dry-decontaminated and crushed barrels removed from the DSA were staged in cells at the DSA that have been confirmed as below cleanup. Five bags of uncontaminated soil and liners (15.1 tons) generated from the decommissioning of Storage Area 1 (SA1) were staged onsite, as well.


2.1 EXCAVATION ACTIVITIES

During 2015 field activities, Jacobs excavated contaminated soil from four areas within the

RRS: SRA2, Access Road, Site Road and Tundra Sections 89-92 and the DSA (Figure A-2).

The DSA is discussed separately in Section 2.1.2 due to the collocated debris and unique

excavation approach. Grids targeted for excavation were selected based on laboratory

sampling results from current and previous field seasons, and excavation instructions were

displayed graphically through use of ArcGIS. Excavation locations and depths for TSCA and

non-TSCA soils are shown on Figures A-3 through A-17 for 2016 removal activities.

Excavation instructions are updated in real time as new analytical results are received.

2.1.1 Radio Relay Station

At the RRS, Jacobs filled 8.5 cy bags directly from excavations of targeted grids utilizing bag

frames positioned adjacent to the active excavation. Bags were manually mounted on the

frames at a central location before being transported to the active excavation site by a loader.

An additional plastic liner was manually installed into bags intended to contain TSCA soil.

Bags were then filled by an excavator, transported back to the central location, unhooked

from the frames, and sealed. Once sealed, the bags were moved to a lined staging area using a

loader and transport rack. RRS area excavations occurred south of Site Road in road sections

89 through 92, along Access Road, and in SRA2 (Figure A-2). The filled bags were staged

and labeled with the general excavation location (e.g., SRA2, DSA), a bag identification

number (with an added “T” for TSCA bags), the weight of the bag, the date of generation, and

the site and owner information. Bags were later transported from the staging areas by semi-

truck and trailer to the barge landing area and then transferred to ELM for disposal.

In early June 2015, approximately 27.9 tons of clean soil was erroneously excavated from

Tundra Section 91 and loaded into bags with contaminated soil. The contaminated and

uncontaminated soil could not be separated. This mistakenly excavated soil was disposed of at

Jacobs’ expense and is not included in the quantities displayed in Table 2-1 below.


2.1.2 Drum Storage Area

Prior to excavations beginning at the DSA, a geotextile fabric covering the area was removed

and disposed of along with some of the soil that had been used to hold the liner down. Soil

that could be removed without disturbing the liner was placed into two suspected clean

stockpiles, and each was sampled according to Table 2A of the ADEC Draft Field Sampling

Guidance (ADEC 2010). All samples from the first stockpile were below cleanup levels, and

the soil from this stockpile was subsequently used for backfill elsewhere on the site. Both

samples collected from the second stockpile were above cleanup levels and this soil was

bagged for disposal.

Due the presence of metallic debris, potentially pressurized gas cylinders, and potential ACM,

additional care was required when excavating at the DSA. Magnetometric screening and hand

digging were performed, and lifts of approximately 2 inches were scraped with the excavator

bucket. In addition, bags used for soil excavated at the DSA had a pre-installed felt liner to

prevent tears and punctures from metallic debris. Large metallic debris, 12 depressurized gas

cylinders, creosote wooden beams, and approximately 100 electronic components including

batteries and transformers were dry-decontaminated and staged onsite. Approximately 100

empty drums were dry-decontaminated, crushed, and stored in five bags separate from the

contaminated soil. Five small plastic jugs and glass bottles with unknown liquid contents were

found during the DSA excavations. The bottles were placed in a 10-gallon overpack drum and

staged onsite. Complete characterization and final disposition of DSA debris is yet to be

determined.

2.1.3 Torn and Spilled Bag

During hauling activities, on 25 June, one previously staged non-TSCA bag ripped as it was

being lifted and spilled its contents onto a liner in the bag storage area at the RRS site. A

portion of the spilled material was observed falling into a berm of clean soil used to hold

down the edge of the liner. The spilled material and torn bag were loaded into a new bag, and

as a precaution, approximately 1,500 pounds of soil were removed from the berm where

mixing could have occurred. Three samples were collected from the area to ensure all


contaminated material had been removed. Two of the three results were nondetect for PCBs

and one result was 0.0564 mg/kg (below the cleanup level of 1 mg/kg).

2.1.4 Quantities

The weight of each bag was measured onsite using uncertified scales integrated into the

loaders. The weight of the bags measured while on site was considered an estimate, and

certified scales at the disposal facilities were used to provide the actual weight. During the

2015 field effort, 1,435 bags of non-TSCA-contaminated material was excavated, weighing

an estimated 10,324.6 tons, and 352 bags of TSCA-contaminated material was excavated,

weighing an estimated 2,335.0 tons.

During barge loading, 1,312 non-TSCA bags and 317 TSCA bags were recorded as loaded.

However, upon arrival in Seattle, 1,315 non-TSCA bags and 317 TSCA bags were unloaded,

weighed, and disposed of. The discrepancy in non-TSCA bags is most likely due to a clerical

error made during loading. The estimated weight for the 1,312 non-TSCA bags that were

recorded as shipped was 10,042.4 tons and the certified weight for the 1,315 bags that arrived

was 9,676.58 tons. The variance on the uncertified site scales and the certified scales for the

non-TSCA material was 365.82 tons lighter, or 3.6 percent difference. However, because of

the disparity in bag counts, the exact percentage could not be calculated. The 317 bags of

TSCA material were estimated at the site to weigh 2,135.3 tons. The weight recorded by

certified scales was 2145.78, heavier by 10.48 tons, or 0.5 percent more, at the certified

scales. The overall variance between the calculated and certified weights of TSCA and non-

TSCA soil in 2015 was 2.92 percent lighter than the estimated weight. Table 2-1 presents the

PCB-contaminated soil loading, transport, and disposal totals for 2015.

2.1.5 Excavated Soil Transportation and Disposal

Two barges belonging to Boyer Towing transported PCB-contaminated waste from Port

Heiden, Alaska in 2015. The first barge, Bainbridge, was loaded with 837 bags containing a

certified weight of 6,206.83 tons of non-TSCA soil from 1 through 4 September 2015. The

second barge, Klinkwan, was loaded from 5 through 9 September 2015 with 478 bags


containing non-TSCA soil with a certified weight of 3,469.75 tons (including six bags

containing 10.5 tons of uncontaminated waste that was used for the construction of the barge

ramp), and 317 bags of TSCA hazardous soil with a certified weight of 2,145.78 tons. The six

bags of uncontaminated waste were disposed of at the expense of ELM. After loading was

complete, the barges travelled to Seattle, Washington.

All bags containing non-TSCA soil were transferred to rail cars in Seattle and transported to

the final disposal facility at Columbia Ridge Landfill in Arlington, Oregon. Weights for the

six bags of barge landing construction materials were included in the waste tracking

documents in Appendix C; however, the estimated weights for these bags (10.5 tons) were

omitted from the calculations of waste generated and waste disposed presented in Table 2-1.

Weights and bag numbers from 2013 and 2014 are included in Table 2-1 for reference. Bags

containing TSCA hazardous soil were loaded into R Transport intermodal containers and

transported via intermodal rail cars to the final disposal facility at Chemical Waste

Management of the Northwest in Arlington, Oregon. Signed certificates of disposal were

issued for the TSCA-generated waste for disposal dates between 13 October and 28 October

2015 (Appendix C).


Table 2-1 PCB-Contaminated Soil Loading, Transport, and Disposal Totals for 2015

Year of Generation

PCB Soil TSCA/Non-TSCA

Total Bags

Generated

Total Estimated

Weight Generated

(tons)

Total Bags Transferred1

Total Estimated

Weight Transferred

(tons)

Total Certified Weight

Disposed (tons)

2013 non-TSCA 1,542 12,089 1,347 10,557 10,422.73 TSCA hazardous 82 334 82 334 348.15

2014 non-TSCA 1,366 10,403.8 1,096 8,228.8 8,718.68 TSCA hazardous 268 2,230.6 268 2,230.6 2,082.11

2015 non-TSCA 1,435 10,324.6 1,3092 10,004.0* 9,638.18* TSCA hazardous 352 2,335.0 317 2,135.3 2,145.78

Total 5,045 37,717.0 4,419 33,489.7 33,355.63 Notes: 1 Six bags weighing a total of 10.5 tons were subtracted from the 2015 non-TSCA figures, as they were uncontaminated

materials used for the barge landing and were disposed of at the expense of waste management subcontractor ELM. A total of 27.9 tons of mistakenly excavated clean soil that was disposed of at the expense of Jacobs were subtracted. The number of bags related to the excavation error is unknown and is not reflected in the bag counts.

2 Bags transferred in 2015 included bags excavated in 2013 and 2014 that were staged onsite. For definitions, refer to the Acronyms and Abbreviations section.

2.2 STORAGE AREA 1 FINAL DECOMMISSIONING

The former stockpiles at SA1 were constructed during the non-time-critical removal action

(NTCRA) conducted in accordance with the 2012 NTCRA decision (USAF 2012). The

stockpiles were decommissioned in 2013 and 2014 and post-construction samples were

collected from the footprints of the stockpiles (USAF 2016). In late-August 2015, Jacobs

directed the final decommissioning of SA1 (Figure A-1). Liners were removed and bagged for

future disposal. Site controls were taken down, and the area was graded with a loader using its

bucket attachment. The post-construction samples collected in 2013 and 2014 did not indicate

PCB contamination, and as such, all garbage collected was disposed of at the Port Heiden

Landfill.

2.3 ANALYTICAL SAMPLING

During the 2015 field season, 1,748 analytical samples were collected at Port Heiden and

submitted for chemical analysis. Of those, 1,735 samples were analyzed for PCBs, eight were

used to screen soil for lead, or volatile organic carbon (VOC) and gasoline-range organics


(GRO), and five were used to assess the effectiveness of equipment decontamination

procedures.

Samples were analyzed by SGS Environmental Services in Anchorage, Alaska. Analytical

data, including the sample summary, analytical results tables, and ADEC laboratory data

review checklists, can be found in Appendix D. Data quality was compared to the objectives

outlined in Worksheet #28 of the 2013 work plan (USAF 2013). The reported data were

considered usable for the soil removal action. Limitations of the analytical results and data

that did not meet project data quality objectives (DQOs) are also noted in Appendix D.

2.3.1 Soil PCB Analysis

Of the 1,735 samples collected in 2015, 1,576 were primary samples and 159 were duplicate

samples. Primary PCB samples consisted of the following:

• Nine-point composite excavation confirmation samples

• Nine-point composite initial surface characterization samples, or step-out grid samples

• Three-point composite excavation sidewall confirmation samples for walls at least 18 inches deep

• Discrete subsurface samples to delineate the vertical extent of PCB contamination in 50 percent of grids with confirmed surface contamination at the DSA

• Eight-point composite North Landfill Road surface samples

• Stockpile decommissioning samples

• Discrete surface samples at the pumice pit (to confirm use as clean backfill), located south of the airport (Figure A-1), and in the vicinity of a torn and spilled bag (Section 2.1.3 above)

The distribution of PCB soil samples is shown in Table 2-2. Samples were collected and

handled in accordance with the 2013 work plan (USAF 2013), the 2014 work plan addendum

(USAF 2014), and the 2015 DSA work plan addendum (USAF 2015). Sample collection

locations include SRA2, Access Road, and Site Road/Tundra Sections 89-92, which are

combined as RRS area; the DSA; Site Road/Tundra Sections 08 and 10 (Figure A-1); soil


stockpiles; the pumice pit (Figure A-1); the area around a spilled bag; and at North Landfill

Road (Figure A-2).

Table 2-2 Soil Samples Collected and Submitted for PCB Analysis in 2015

Source # of Samples

Radio Relay Station Area Grid floor excavation confirmations – nine-point composite 694 Initial grid surface characterizations – nine-point composite 297 Excavation wall confirmations – three-point composite 162 Duplicates 119 Total collected at the Radio Relay Station Area 1,272

Drum Storage Area Grid floor excavation confirmations – nine-point composite 112 Initial grid surface characterizations – nine-point composite 129 Excavation wall confirmations – three-point composite 49 Discrete subsurface delineations of contamination 87 Duplicates 38 Total collected at the Drum Storage Area 415

Site Road and Tundra Sections 08 and 10 Initial grid surface characterizations – nine-point composite 27 Duplicates 2

Total collected at the Road and Tundra Sections 08 and 10 29 Miscellaneous Samples Soil stockpile characterization 8 Pumice pit characterization 5 Spilled bag cleanup confirmations 3 North Landfill Road surface characterization – eight-point composite 3 Total miscellaneous samples collected 19 Total PCB soil analysis samples collected in 2015 1,735

Note: For definitions, refer to the Acronyms and Abbreviations section.

2.3.2 Equipment Decontamination Confirmation Samples

Five equipment decontamination confirmation samples were collected prior to demobilization

from the site. While preparing an excavator for return to its owner, a sample of soil

compacted in the tracks of the excavator was collected, and the PCB result was 1.08 mg/kg.

This soil was removed and bagged for disposal. A hexane wipe of the track confirmed


decontamination was complete. Three additional hexane wipe samples were collected from

excavator buckets, and the PCB results were below the action level of 10 micrograms per for

each.

2.3.3 Soil Lead Analyses

During excavations at the DSA, approximately 100 buried electrical components

(transformers and batteries) were found. Batteries used during the operation period of the

RRS were often lead-acid, and not all the batteries found were completely sealed. As a result,

three discrete targeted samples were collected from areas where batteries were uncovered to

ensure soil from those areas could not be classified as a RCRA hazardous waste. Samples

were submitted for toxicity characteristic leaching protocol (TCLP) analysis of total lead.

Results ranged from 8.06 to 18.0 mg/kg.

2.3.4 Soil VOC and GRO Analysis

Field crews noticed a strong odor originating from soil near a monitoring well (PG1-MW-01)

within SRA2. Trichloroethene (TCE) has been detected at this well in the past. To assess the

potential worker exposure risk, soil from two grids adjacent to the well were tested with TCE-

specific Dräger tubes. Neither test produced a color change in the tube from 2 to 50 ppm or

from 20 to 250 ppm. With consultation from AFCEC and USACE, two primary samples and

one duplicate sample were collected and sent to the analytical laboratory to be analyzed for

VOCs and GRO. The strongest odor was near an antenna pad that had been recently exposed

below the surface, and in an area with PCB concentrations above 3,000 mg/kg. Testing

revealed the presence of 1,2,3-trichlorobenzene (1,2,3-TCB) and 1,2,4-trichlorobenzene

(1,2,4-TCB). One sample had a result of 1.38 mg/kg, above the ADEC Method Two

migration to groundwater cleanup level for 1,2,4-TCB (0.85 mg/kg) (ADEC 2016). The odor

threshold for 1,2,4-TCB is 3 milligrams per cubic meter. As such, the 2015 Explanation of

Significant Differences (currently undergoing internal review) describes 1,2,4-TCB as a new

contaminant of concern for the RRS site. The analyte 1,2,3-TCB has no published exposure or

cleanup levels.


To ensure that material excavated from the area could not be classified as a RCRA hazardous

waste during transport, a sample was collected for TCLP analysis of VOCs from a staged bag

containing soil from the area in question. The results were nondetect for all tested analytes

and the bags from the area were cleared for transport as TSCA waste, as PCB concentrations

were greater than 50 mg/kg.

2.4 ASBESTOS SAMPLING

Because of known asbestos disposal at the DSA and at other former RRS buildings, an onsite

qualified asbestos inspector collected and submitted 79 samples for asbestos analysis during

the 2015 field season. Of the 79 samples, 28 were air monitoring samples, 13 were samples of

soil around known or suspected ACMs, and 38 were samples of bulk materials often

associated with asbestos, such as tiles and pipe insulation (Table 2-3). Of the 38 bulk material

samples, six samples that contained yarn, wool, wire insulation, and baseboard/mastic were

analyzed by transmission electron microscopy, and the remaining 32 were analyzed by

polarized light microscopy. Six samples of bulk material tested positive for chrysotile,

including four floor tiles and mastic and two bags containing thermal system insulation, foam,

and metal at the DSA. The samples collected from these two bags also contained amosite.

Figures A-18 and A-19 depict locations of bulk and soil asbestos sampling, and the associated

results.

The 28 air monitoring samples were collected during initial DSA sampling, while closing

bags, and during the asbestos removal activities as described in the asbestos removal plan

(EMI 2015). Six of the 28 air monitoring samples were negative control field blanks or sealed

blanks. Five of the 28 samples were collected as background air or personal air samples

during soil sampling that occurred after the initial discovery of potential ACM at the DSA.

Field staff were equipped with high-efficiency particulate air filter respiratory protection

during the collection of all air samples. Air monitoring cassettes were analyzed by phase

contrast microscopy. Two of the five personal air monitoring samples collected during

removal activities at the DSA identified airborne asbestos particles, but the results were below

the regulatory personal exposure limit and exclusion limit. The remaining 12 air samples were


collected at the perimeter of the exclusion zones during the removal activities at the DSA.

Three of these samples were upwind of the removal area, and nine samples were downwind;

all were nondetect. Appendix E presents the asbestos removal action summary prepared by

EMI.

Asbestos analyses were submitted to and performed by White Laboratories, LLC in

Anchorage, Alaska; however, White Laboratories outsourced some analyses to Scientific

American Institute in Greensboro, North Carolina. The complete asbestos sample summary

and analytical results can be found in Attachment E-1 of Appendix E.

Table 2-3 Asbestos Samples Collected and Submitted for Analysis in 2015

Sample Type Samples Collected Asbestos Detected

Potentially asbestos-containing soil 13 0 Potentially asbestos-containing bulk materials 38 6 Air monitoring for airborne asbestos fibers 22 2 Negative controls for air monitoring 6 0

Total 79 8

2.5 WINTER STORAGE OF EXCAVATED MATERIALS

As described in Section 2.2, the majority of the materials excavated in 2015 were sent for

disposal, while some remains staged on site. All 277 bags containing non-TSCA soil and

debris and 22 bags containing TSCA soil and debris from the DSA, as well as 324 non-TSCA

bags and 13 TSCA bags from former RRS areas, are still staged in Port Heiden for disposal

during the 2016 field season. Bags being overwintered in Port Heiden are staged on one of

five pads (Figure A-20). Each pad has a liner upon which the bags were set, then the bags and

pads were covered with a second liner. Covers will be inspected monthly throughout the

winter by a local subcontractor. Bags are segregated by PCB level (TSCA or non-TSCA) and

source area (DSA or SRA2). Due to the expected length of storage of TSCA level soil, the

U.S. Environmental Protection Agency was notified. A total of 636 bags weighing


approximately 4,203 tons are staged onsite for winter 2015/2016. Table 2-4 presents the

contents of each pad.

Table 2-4 LiftPacs Staged Onsite Over Winter 2015-2016

Pad Number Pad Contents

Pad Area (m2)

# of Bags

Weight (tons)

CA-1A Non-TSCA from RRS areas 646.4

324 2,319.2 CA-1B

Non-TSCA from RRS areas + 5 bags of uncontaminated soil and liners from SA1 decommissioning

797.6

CA-1C TSCA from DSA

777.6 22 109.8

TSCA from RRS areas 13 90.0 CA-1D Non-TSCA from DSA 224.0

277 1,684.1 CA-1E Non-TSCA from DSA 729.8

Total 3,175.4 636 4,203.0 Notes: CA-1A and CA-1B contain the same type of bags from the same source, as do CA-1D and CA-1E. Because the location of each

individual bag is not tracked, only the total weight of both pads combined can be calculated. For definitions, refer to the Acronyms and Abbreviations section.


3.0 CONCLUSION AND FUTURE ACTIVITIES

During the 2015 field season, 1,787 bags totaling an estimated 12,659.6 tons (10,324.6 tons

non-TSCA and 2,335.0 tons TSCA) of PCB-contaminated soil were generated from newly

excavated grid cells. A total of 1,632 bags with a certified weight of 11,822.36 tons,

consisting of 9,638.18 tons of non-TSCA soil, 2,145.78 tons of TSCA soil, 10.5 tons of barge

landing construction materials, and 27.9 tons of mistakenly excavated clean soil was

transported to facilities in Arlington, Oregon for disposal.

All remaining waste from 2013 and 2014 and approximately 65 percent of the soil excavated

in 2015 was transported to the disposal facility. All material excavated from the DSA

(299 bags weighing an estimated 1793.8 tons) and 332 bags of soil from SRA2 (weighing an

estimated 2,409.2 tons) remains staged at Port Heiden. Other material staged at the DSA

(within the fenced excavation area) includes a large pile of metal debris, more than

100 transformers and batteries, 12 depressurized gas cylinders, an overpack drum with five

bottles of unknown liquid, and five bags of crushed and dry-decontaminated drums. Complete

characterization and appropriate disposal of DSA debris is yet to be determined. All 636

staged bags will be transported to the disposal facility in 2016 along with the soil excavated

under remaining contract quantities in 2016.

Work at the DSA is anticipated to be completed in spring 2016. Three remaining grid cells

with PCB results above cleanup levels were inaccessible at the end of 2015 due to pooling of

heavy rain in mid-September. End-of-season sampling also delineated five additional

excavation sidewalls with PCB concentrations above cleanup levels. All TSCA materials are

thought to have been removed from the DSA, with only non-TSCA soil remaining. As PCB-

contaminated soil was found collocated with buried metallic debris, a geophysical survey was

performed at the end of the 2015 field season and revealed no remaining buried metallic

debris within 10 feet of the surface.

Levels of 1,2,4-TCB will continue to be screened against ADEC Method Two migration to

groundwater cleanup levels at SRA2. PCBs and 1,2,4-TCB are expected to be collocated at


the site, as 1,2,4-TCB was historically used as a dielectric fluid in transformers. Removal of

1,2,4-TCB-contaminated soil is expected to occur during the removal of PCB-contaminated

soil.

The quantities of PCB-contaminated soil remaining at the Port Heiden RRS area are estimated

based on sampling results from previous and current removal activities (2013 through 2015).

These calculations are presented in Appendix F. Approximately 7,800 cy of contaminated soil

remains at Port Heiden. This quantity is based on the current surface characterization results

and estimated results in unsampled areas, and may change based on characterization and

depth delineation sampling planned for the 2016 field season at the former RRS, Septic

Lagoon, North Landfill, and North Landfill Road. The contaminated grids targeted for future

excavation activities and proposed characterization sample locations are presented on figures

in Appendix A.


4.0 REFERENCES

ADEC (Alaska Department of Environmental Conservation). 2016 (January). Oil and Other Hazardous Pollution Control Regulations – Discharge Reporting, Cleanup, and Disposal of Oil and Other Hazardous Substances. 18 AAC 75.

ADEC. 2010 (May). Draft Field Sampling Guidance. ADEC Division of Spill Prevention and Response Contaminated Sites Program.

EMI (Environmental Management, Inc.). 2015 (August). Asbestos Removal Plan.

USAF. (U.S. Air Force). 2016 (March). Site Road PCB-Contaminated Soil Removal, 2013/2014 After Action Report. Draft-Final. Prepared by Jacobs Engineering Group Inc.

USAF. 2015 (June). PCB-Contaminated Soil Excavation and Removal Action: Drum Storage Area Work Plan Addendum. Final. Prepared by Jacobs Engineering Group, Inc.

USAF. 2014 (May). PCB-Contaminated Soil Delineation Sampling and Analysis Plan, Work Plan Addendum. Final. Prepared by Jacobs Engineering Group, Inc.

USAF. 2013 (August). PCB-Contaminated Soil Excavation and Removal Action: 2013 Work Plan. Prepared by KEMRON Environmental Services, Inc.

USAF. 2012 (April). Action Memorandum for a Non-Time-Critical Removal Action of PCB-Contaminated Soil. (Draft-Final). Port Heiden Site Road. Port Heiden, Alaska.

USAF. 2009 (February). Record of Decision for Port Heiden Radio Relay Station (Final). Port Heiden RRS, Port Heiden, Alaska. Prepared by Weston Solutions, Inc.

APPENDIX A

Figures

SITE LOCATION AND VICINITYPORT HEIDEN PCB-CONTAMINATED REMOVAL ACTION

PORT HEIDEN, AK

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All Locations Are Approximate

WGS 1984 UTM Zone 4N Transverse Mercator

Bering SeaPort Heiden

DATE: PROJECT MANAGER: FIGURE NO:

LegendRoads

ARCTIC OCEAN

Gulf of AlaskaBering Sea

AlaskaCanadaRussia

PACIFIC OCEAN Pumice Pit

Site OfficeStorage Area 1

Road and TundraSections 08 and 10

Former RadioRelay Station

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Black LagoonOutfall Area

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NorthLandfill

NorthLandfillRoad

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89 - 92

SepticPipeline

SepticLagoon

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0 150 300 450 600Feet

Below Cleanup, 50 mg/kgUncharacterized

Site_RoadRoad Section LineRRS_Areas

WGS 1984 UTM Zone 4N Imagery: Aerometric 2002

Radio Relay Station Site Overview

Radio Relay Station RemediationPort Heiden, Alaska

26 JAN 2016 Kelly McGovern A-2

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Soil Removal Area 2 SoutheastRadio Relay Station Remediation

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14 MAR 2016 K. McGovernPROJECT MANAGER: FIGURE NO:



Access Roads

Sacking station

RRS concrete

Below Cleanup

WERS Legacy DataBelow Cleanup, < 1 mg/kg

Above Cleanup, 1 to 50 mg/kg

TSCA, > 50 mg/kg

Grid To Be Characterized

TSCA Excavation DepthComments

Remove TSCA wall 2.5 feet

TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches

PCB 1-50ppm Excavation DepthComments

1-50 mg/kg to wall depth

Remove wall 2.5 feet

1-50 mg/kg at 24 inches




oTrueNorth oProjectNorth

DATE:

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Soil Removal Area 2 NortheastRadio Relay Station Remediation

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Access Roads

Bag Storage Areas

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Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

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Soil Removal Area 2 NorthwestRadio Relay Station Remediation

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Access Roads

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Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-5

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Soil Removal Area 2 SouthwestRadio Relay Station Remediation

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Access Roads

RRS concrete

Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-6

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Access Roads

Bag Storage Areas

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Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-7

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Access Roads

Sacking station

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Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-8

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Access Roads

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TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

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Access Roads

RRS concrete

Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-10

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New Source AreaRadio Relay Station Remediation

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Access Roads

Sacking station

RRS concrete

Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-11

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Drum Storage AreaRadio Relay Station Remediation

Port Heiden, Alaska




Access Roads

RRS concrete

Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-12

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Port Heiden, Alaska




Access Roads

RRS concrete

Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-13

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Access Roads

RRS concrete

Below Cleanup



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

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Septic LagoonRadio Relay Station Remediation

Port Heiden, Alaska




Access Roads

RRS concrete



TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

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Access Roads

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TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-16

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Access Roads

RRS concrete

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TSCA, > 50 mg/kg




TSCA to 36 inches

TSCA to 30 inches

TSCA to 24 inches

TSCA to 18 inches

TSCA to 12 inches

TSCA to 6 inches









DATE:

A-17

Non-DSA Asbestos Samples Collected in 2015

Radio Relay Station RemediationPort Heiden, Alaska

14 MAR 2016 A-18KELLY McGOVERNP:\Por

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o0 50 100 150 200FeetAll Locations Are Approximate

WGS 1984 UTM Zone 4N


LegendSoil sample, Nondetect for asbestosBulk sample, Asbestos detected

Bulk sample, Nondetect for asbestos

Access RoadsApproximate DSA boundaryRRS concreteSacking station

SampleID Type ResultH32V15-AD-GWTILE-005 Bulk NondetectH32V15-AD-CONCRETE-006A Bulk NondetectH32V15-AD-CONCRETE-006B Bulk Nondetect

SampleID Type ResultH32V09-AD-PACM-004A Bulk NondetectH32V09-AD-PACM-004B Bulk Nondetect

SampleID Type ResultRRS-DA-BLACKPIPE-017 Bulk NondetectRRS-DA-BLACKPIPE-018 Bulk Nondetect

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DSA Asbestos Samples Collected in 2015Radio Relay Station Remediation

Port Heiden, Alaska




Access Roads

Approximate DSA boundary

Asbestos Samples 2015Soil sample, Nondetect for asbestos

Bulk sample, Asbestos detected

Bulk sample, Nondetect for asbestos


DATE:

A-19

SampleID Type Result15PH-DSA-H17V22-AS-12 Soil Nondetect






SampleID Type ResultDSA-AD-UNKFRI-017 Bulk NondetectDSA-AD-WIREINS-018 Bulk Nondetect



SampleID Type Result15PH-DSA-H13V27-AS-12 Soil NondetectDSA-AD-FBGINSULATION-006C Bulk NondetectDSA-AD-GRNTILE-010B Bulk Chrysotile detected

SampleID Type ResultDSA-AD-WALLBOARD-003E Bulk NondetectDSA-AD-GREYWTTILE-014 Bulk NondetectDSA-AD-CLEARTILE-015 Bulk NondetectDSA-AD-YARN-016 Bulk NondetectDSA-AD-COVEBASE-019 Bulk NondetectDSA-AD-WOOL-020B Bulk Nondetect

SampleID Type ResultDSA-AD-WOOL-020 Bulk Nondetect


SampleID Type ResultDSA-AD-WTFOAM-009 Bulk Nondetect

SampleID Type ResultDSA-AD-YARN-016B Bulk Nondetect

SampleID Type ResultDSA-AD-WALLBOARD-003B Bulk NondetectDSA-AD-WALLBOARD-003C Bulk NondetectDSA-AD-WALLBOARD-003D Bulk NondetectDSA-AD-TANTILE-005 Bulk Chrysotile detectedDSA-AD-FBGINSULATION006 Bulk NondetectDSA-AD-FBGINSULATION006B Bulk NondetectDSA-AD-LMTIME-007 Bulk NondetectDSA-AD-WTGRNTILE-008 Bulk NondetectDSA-AD-WTGRNTILE-008B Bulk NondetectDSA-AD-GRNTILE-010 Bulk Chrysotile detectedDSA-AD-BEIGETILE-011 Bulk NondetectDSA-AD-TILE-012 Bulk NondetectDSA-AD-GRNFOAM-013 Bulk Nondetect

SampleID Type Result15PH-DSA-H14V26-AS-12 Soil NondetectDSA-AD-GREYTILE-001 Bulk NondetectDSA-AD-BROWNTILE-002 Bulk 8% Chrysotile,

6% ChrysotileDSA-AD-WALLBOARD-002 Bulk Nondetect



SampleID Type ResultDSA-AD-BAGS-004A Bulk 5% Amosite,

20% ChrysotileDSA-AD-BAGS-004B Bulk 5% Amosite,

20% Chrysotile

APPENDIX B

Photograph Log

Former Port Heiden RRS – PCB-Contaminated Soil Removal 2015 Interim Data Report

Photograph Log B-i

TABLE OF CONTENTS

PHOTO NUMBER PAGE

Photo No. 1 May 14 2015 Bagging operations at TU92-L9-E. View facing southwest. ........................................................................................................ B-1

Photo No. 2 26 May 2015 Transferring the contents of a bag with a failed zipper to a new bag. View facing west........................................................................... B-1

Photo No. 3 28 May 2015 Excavating along the southern end of Access Road. View facing west. ............................................................................................ B-2

Photo No. 4 30 May 2015 Loading excavated soil into hopper along south end of Access Road. View facing west. ................................................................. B-B-2

Photo No. 5 30 May 2015 Digging through overlying vegetation to collect nine-point composite surface samples. View facing southeast. ............................. B-3

Photo No. 6 2 June 2015 Placing a new liner and weighting the corners at a bag storage area. View facing southwest. .............................................................. B-3

Photo No. 7 4 June 2015 Collecting initial asbestos samples at the DSA in level C PPE. View facing north. .................................................................................. B-4

Photo No. 8 13 June 2015 Overview of the DSA as equipment operators prepare to remove the cover to begin excavations. View facing northeast. ..................... B-4

Photo No. 9 15 June 2015 Operators continue removing the cover from the DSA in a thick fog. View facing west. ......................................................................... B-5

Photo No. 10 18 June 2015 Decontaminating the excavator bucket prior to commencement of hauling activities. View facing northwest. ...................... B-5

Photo No. 11 18 June 2015 Placing a liner at the barge landing to begin staging full bags for transfer and disposal. View facing south. ........................................ B-6

Photo No. 12 19 June 2015 Unloading a bag for staging at the barge landing. View facing northeast. .............................................................................................. B-6

Photo No. 13 23 June 2015 The village provided a watering truck to help with dust suppression through town. View facing northeast. ........................................ B-7

Photo No. 14 24 June 2015 Picking up a bag at the RRS storage to haul to the barge landing. View facing north. ............................................................................. B-7

Photo No. 15 27 June 2015 Hand auguring for subsurface samples at the DSA. View facing north. ........................................................................................... B-8

Photo No. 16 3 July 2015 Strong easterly winds caused a plume of pumice particles to be blown from the Aniakchak crater towards the RRS site and the village of Port Heiden and forced an early work stoppage. View facing northeast. .............................................................................................. B-8

Photo No. 17 8 July 2015 Guiding the loader operator while placing a bag on the flatbed. View facing east. ................................................................................ B-9


TABLE OF CONTENTS (Continued)

Photo Number Page

Photograph Log B-ii

Photo No. 18 8 July 2015 Hooking a bag to the loader rack to load onto the flatbed. View facing west. ............................................................................................ B-9

Photo No. 19 9 July 2015 Employee sampling in level C PPE preparing to collect a sample of a potentially asbestos-containing material. View facing north. ............................................................................................................. B-10

Photo No. 20 – 9 July 2015 Debris encountered at the DSA. Contents of a clear plastic bag labeled “WASTE ONLY” were sampled for asbestos. Two buried drums are also in view. View facing down. ....................................... B-10

Photo No. 21 13 July 2015 Loader operator guiding a full hopper into the sacking station bay. View facing west. ...................................................................... B-11

Photo No. 22 13 July 2015 View of DSA prior to excavation. View facing north. ........... B-11

Photo No. 23 14 July 2015 Two fire suppression cylinders located at the DSA. View facing down. ........................................................................................ B-12

Photo No. 24 16 July 2015 Excavating PCBs at concentrations greater than 50 mg/kg at the RRS area. Note the clear plastic liner lining the bag and folded over the outside. View facing southwest. .......................................... B-12

Photo No. 25 21 July 2015 A buried drum collocated with household garbage at the DSA. View facing down. .............................................................................. B-13

Photo No. 26 21 July 2015 Metallic debris staging area and decontamination area at the DSA. View facing north. ......................................................................... B-13

Photo No. 27 21 July 2015 An empty small chemical drum with two chemical safety warning signs located in excavations at the DSA. View facing down. ............................................................................................................. B-14

Photo No. 28 21 July 2015 A large piece of electrical equipment (likely a transformer). View facing down. .................................................................. B-14

Photo No. 29 22 July 2015 Tangled steel cable excavated from the DSA. View facing northwest. ........................................................................................... B-15

Photo No. 30 23 July 2015 Collection of five transformers pulled from early excavations at the DSA. View facing down.................................................. B-15

Photo No. 31 13 August 2015 Debris at the southwest corner of the DSA with 18-inch excavation instructions painted on the ground in pink. View facing south. .................................................................................................. B-16

Photo No. 32 13 August 2015 Amber 2 liter bottle with unknown contents recovered from DSA excavations. View facing down. ................................. B-16



Photo Number Page

Photograph Log B-iii

Photo No. 33 13 August 2015 A large bundle of electrical conduit was uncovered in the DSA. Conduit was multi-layered and approximately 4 inches in diameter. View facing west. .......................................................................... B-17

Photo No. 34 22 August 2015 Debris excavated at the DSA. View facing west. .............. B-17

Photo No. 35 22 August 2015 Cleaning the excavator bucket into a bag prior to returning the unit at the end of its rental term. View facing east. ................ B-18

Photo No. 36 28 August 2015 Post-decommissioning photo of Storage Area 1. View facing east. ........................................................................................... B-18

Photo No. 37 1 September 2015 All bags staged at the barge landing for disposal. View facing east. ........................................................................................... B-19

Photo No. 38 16 September 2015 A liner bag was placed over the excavator bucket to prevent contaminated soil from dripping off while relocating the excavator during heavy rains. View facing southwest. ................................. B-19

Photo No. 39 18 September 2015 Overview of DSA regulated exclusion zone for asbestos removal activities. View facing northwest. .................................... B-20

Photo No. 40 19 September 2015 Hand-digging friable asbestos material and placing into asbestos waste bags. View facing down. .................................. B-20

Photo No. 41 19 September 2015 During asbestos removal activities, approximately 50 empty drums were encountered. At least nine are visible in this photo. View facing northeast. ....................................................................... B-21

Photo No. 42 19 September 2015 Asbestos removal crew members wet the affected areas with water before removal while the excavator removes a drum obstructing their access. View facing northwest. .......................................... B-21

Photo No. 43 25 September 2015 A geophysicist conducts a geophysical survey of the DSA to find any remaining buried metallic debris after excavations were complete. View facing north. ............................................................... B-22

Photo No. 44 26 September 2015 Two of the grids with sample results above cleanup levels remain under water and could not be excavated. View facing north. .................................................................................................. B-22

Photo No. 45 27 September 2015 Cylinders and electrical equipment are staged overwinter at the DSA awaiting final disposition orders. View facing southeast. ....................................................................................................... B-23

Photo No. 46 27 September 2015 Metal debris staged overwinter at the DSA awaiting final disposition orders. View facing south. ................................... B-23



Photo Number Page

Photograph Log B-iv

Photo No. 47 27 September 2015 Batteries, transformers, and fire suppression cylinders staged for overwintering at the DSA while awaiting final disposition orders (left half). View facing down. ......................................... B-24

Photo No. 48 27 September 2015 Batteries, transformers, and fire suppression cylinders staged for overwintering at the DSA while awaiting final disposition orders (right half). View facing down. ....................................... B-24

Photo No. 49 30 September 2015 Decontaminating the excavator bucket before returning it to the owner. View facing west. ................................................. B-25

Photo No. 50 1 October 2015 A bag storage pad covered by a liner for overwintering and weighted with clean fill. View facing north.................... B-25


Photograph Log B-1

Photo No. 1 – May 14 2015

Bagging operations at TU92-L9-E. View facing southwest.

Photo No. 2 – 26 May 2015

Transferring the contents of a bag with a failed zipper to a new bag. View facing west.


Photograph Log B-2


Excavating along the southern end of Access Road. View facing west.


Loading excavated soil into hopper along south end of Access Road. View facing west.


Photograph Log B-3


Digging through overlying vegetation to collect nine-point composite surface samples. View facing southeast.

Photo No. 6 – 2 June 2015

Placing a new liner and weighting the corners at a bag storage area. View facing southwest.


Photograph Log B-4


Collecting initial asbestos samples at the DSA in level C PPE. View facing north.


Overview of the DSA as equipment operators prepare to remove the cover to begin excavations. View facing northeast.


Photograph Log B-5


Operators continue removing the cover from the DSA in a thick fog. View facing west.


Decontaminating the excavator bucket prior to commencement of hauling activities. View facing northwest.


Photograph Log B-6


Placing a liner at the barge landing to begin staging full bags for transfer and disposal. View facing south.


Unloading a bag for staging at the barge landing. View facing northeast.


Photograph Log B-7


The village provided a watering truck to help with dust suppression through town. View facing northeast.


Picking up a bag at the RRS storage to haul to the barge landing. View facing north.


Photograph Log B-8


Hand auguring for subsurface samples at the DSA. View facing north.

Photo No. 16 – 3 July 2015

Strong easterly winds caused a plume of pumice particles to be blown from the Aniakchak crater towards the RRS site and the village of Port Heiden and forced an early work stoppage.

View facing northeast.


Photograph Log B-9


Guiding the loader operator while placing a bag on the flatbed. View facing east.


Hooking a bag to the loader rack to load onto the flatbed. View facing west.


Photograph Log B-10


Employee sampling in level C PPE preparing to collect a sample of a potentially asbestos-containing material. View facing north.


Debris encountered at the DSA. Contents of a clear plastic bag labeled “WASTE ONLY” were sampled for asbestos. Two buried drums are also in view. View facing down.


Photograph Log B-11


Loader operator guiding a full hopper into the sacking station bay. View facing west.


View of DSA prior to excavation. View facing north.


Photograph Log B-12


Two fire suppression cylinders located at the DSA. View facing down.


Excavating PCBs at concentrations greater than 50 mg/kg at the RRS area. Note the clear plastic liner lining the bag and folded over the outside. View facing southwest.


Photograph Log B-13


A buried drum collocated with household garbage at the DSA. View facing down.


Metallic debris staging area and decontamination area at the DSA. View facing north.


Photograph Log B-14


An empty small chemical drum with two chemical safety warning signs located in excavations at the DSA. View facing down.


A large piece of electrical equipment (likely a transformer). View facing down.


Photograph Log B-15


Tangled steel cable excavated from the DSA. View facing northwest.


Collection of five transformers pulled from early excavations at the DSA. View facing down.


Photograph Log B-16

Photo No. 31 – 13 August 2015

Debris at the southwest corner of the DSA with 18-inch excavation instructions painted on the ground in pink. View facing south.


Amber 2 liter bottle with unknown contents recovered from DSA excavations. View facing down.


Photograph Log B-17


A large bundle of electrical conduit was uncovered in the DSA. Conduit was multi-layered and approximately 4 inches in diameter. View facing west.


Debris excavated at the DSA. View facing west.


Photograph Log B-18


Cleaning the excavator bucket into a bag prior to returning the unit at the end of its rental term. View facing east.


Post-decommissioning photo of Storage Area 1. View facing east.


Photograph Log B-19

Photo No. 37 – 1 September 2015

All bags staged at the barge landing for disposal. View facing east.

Photo No. 38 – 16 September 2015 A liner bag was placed over the excavator bucket to prevent contaminated soil from dripping off

while relocating the excavator during heavy rains. View facing southwest.


Photograph Log B-20

Photo No. 39 – 18 September 2015

Overview of DSA regulated exclusion zone for asbestos re

Documents

PACIFIC AIR FORCES EGIONAL SUPPORT CENTER...Apr 01, 2016 · pacific air forces. regional support center. joint base elmendorf-richardson, alaska. pcb-contaminated soil removal action