Tunnels - Narrative Report.pdf

TUNNELS

LEGEND No. 0800912

TABLE OF CONTENTS

ITEM

NARRATIVE REPORT

1.0 BUILDING INTRODUCTION

2.0 ASBESTOS SURVEY INFORMATION

2.1 SUSPECT MATERIALS IDENTIFIED AND SAMPLED

2.2 ASBESTOS CONTAINING MATERIALS

2.3 COST ESTIMATES

2.4 SURVEY NOTES

ACM LOCATIONS/FRIABLE MATERIALS ASSESSMENTS TABLE

ACM LOCATIONS DIAGRAMS

LABORATORY DATA

ASBESTOS BULK SAMPLE RESULTS TABLE

ASBESTOS BULK SAMPLE LOCATIONS DIAGRAM

LEGEND No. 0800912 TUNNELS Page 1 of 2

1.0 BUILDING INFORMATION

The tunnel system was originally constructed in 1945; it begins at Building #10, runs west connecting to Building #13 and Building #12, turns south connecting to Building #11, and ends at Building #1/9/46. The tunnel system can be readily accessed from Building #1/9/46, #10, and #13; in addition to three manholes north of Building #1/9/46.

The piping systems were insulated; fiberglass insulation (without hard fittings), millboard insulation (with hard fittings), and mag block insulation (with hard fittings) are located in the tunnel system.

2.0 ASBESTOS SURVEY INFORMATION

The tunnel system was surveyed as part of a larger project for the VA. This report is part of “Volume 2” of a two volume series. This report includes tunnel system specific information only; please refer to the opening section of “Volume 2” for methodologies, definitions, and other pertinent supporting information.

A total of 4 samples were collected from suspect asbestos-containing materials (ACM) on November 7, 2008. Laboratory analysis results indicate 2 of these samples tested positive for asbestos.

2.1 Suspect Materials Identified and Sampled

Encapsulant on Fiberglass Insulation Millboard Pipe Insulation Hard Fittings on Mag Block Pipe Insulation Mag Block Pipe Insulation

The Asbestos Bulk Sample Results Table includes asbestos sampling data.

2.2 Asbestos Containing Materials

Hard Fittings on Mag Block Pipe Insulation Millboard Pipe Insulation Hard Fittings on Millboard Pipe Insulation (assumed)

The ACM Locations/ Friable Materials Assessments Table includes ACM locations data.

2.3 Cost Estimates

Legend Technical Services Inc. estimates abatement costs (removal & disposal) of ACM as follows:

ACM QUANTITY UNIT COST TOTAL COST

Asbestos Pipe Insulation (all types) 18 ft 17 fittings

$100.00/ft

$100.00/fitting $3,500.00

Total Estimated Abatement Costs: $3,500.00

LEGEND No. 0800912 TUNNELS Page 2 of 2

2.4 Survey Notes

LEGEND identified Mag Block Pipe Insulation in the tunnel system, site observations imply it was installed in 1976 and a review of the laboratory data indicates it does not contain asbestos;

however, the laboratory data also indicates the Hard Fittings on the Mag Block Pipe Insulation do contain asbestos. LEGEND noted several Hard Fittings on Mag Block Pipe Insualtion in each manhole location.

LEGEND identified Millboard Pipe Insulation in the tunnel system, site observations imply it was installed in 1945 and a review of the laboratory data indicates it does contain asbestos; in addition, LEGEND assumed the Hard Fittings on Millboard Pipe Insulation do contain asbestos.

LEGEND noted the Millboard Pipe Insulation and Hard Fittings on Millboard Pipe Insulation in the tunnel system by Building #13, only.

LEGEND TECHNICAL SERVICES, INC.

ACM LOCATIONS/FRIABLE MATERIALS ASSESSMENTS TABLE

LEGEND No. 0800912 (VA)

ROOM/

ACM

ACM TYPE

(SAMPLE #)

EST.

QUANTITY

MATERIAL

CONDITION

DAMAGE

POTENTIAL

HIGH

M

OD

LOW

ASSESS.

CAT.1 NOTES ABATEMENT INFORMATION

* = Non-Friable materials were not assessed Page 1 of 1

Tunnels Hard Fittings on Mag Block Pipe Insulation

Friable

TSI

(4)

16 fittings

Damaged Physical Air Erosion Vibration

1 Refer to the ACM Locations Diagram for exact locations.

LEGEND #: ____________________

Date: ________________________ Millboard Pipe Insulation

Friable

TSI

(2,assumed)

18 ft 1 fitting

Significantly Damaged

Physical Air Erosion Vibration

1 Refer to the ACM Locations Diagram for exact locations.

LEGEND #: ____________________

Date: ________________________

1Assessment Categories:

1) Damaged or Significantly Damaged TSI ACM 5) ACM with Potential for Damage

2) Damaged Friable Surfacing ACM 6) ACM with Potential for Significant Damage

3) Significantly Damaged Friable Surfacing ACM 7) Any Remaining Friable ACM or Friable Suspected ACM

4) Damaged or Significantly Damaged Friable Miscellaneous ACM

End

LABORATORY DATA

LEGEND TECHNICAL SERVICES, INC.

ASBESTOS BULK SAMPLE RESULTS TABLE

LEGEND No. 0800912 (VA)

MATERIAL/

SAMPLE NO. LAB NO. LOCATION PHYSICAL DESCRIPTION ASBESTOS CONTENT BALANCE OF MATERIAL

< = Less than the number shown Page 1 of 1

1 0800912-YZ Tunnels by Building #13

Encapsulant on Fiberglass Insulation Tan, Cementitious Homogeneous

None Detected 80% Nonfibrous 20% Glass

2 0800912-ZA Tunnels by Building #13

Millboard Pipe Insulation Black, Fibrous Homogeneous

25% Chrysotile 70% Cellulose 5% Nonfibrous

3 0800912-ZB Tunnels by Building #11

Mag Block Pipe Insulation White, Cementitious Homogeneous

None Detected 85% Nonfibrous 10% Glass

5% Synthetic

4 0800912-ZC Tunnels by Building #11

Hard Fitting on Mag Block Pipe Insulation Gray, Cementitious Homogeneous

5% Chrysotile 5% Cellulose 65% Nonfibrous

25% Glass