Asbestos Abatement Report

126 Pages·2013·12.29 MB·English

by  Terracon Consultants Inc

Asbestos Abatement Report
Vacant House, Associated Barn, Sheds, and Debris Piles
811 Pemberton Hill Road
Dallas, Texas

July 30, 2013
Terracon Project No. 94127398C

Prepared for:
City of Dallas
Dallas, Texas 75201

Prepared by:
Terracon Consultants, Inc.
Dallas, Texas
lrerracan
July 30, 2013
Ms. Lori Trulson
City of Dallas TX
Office of Environmental Quality
1500 Marilla, L2FS
Dallas, Texas 75201
P: 214-671-8967
E: [email protected]
Re: Asbestos Abatement
Vacant House, Associated Barn, Sheds, and Debris Piles
811 Pemberton Hill Road
Dallas, Texas
Terracon Project No.: 94127398C
Dear Ms. Trulson:
Terracon Consultants, Inc. (Terracon) is pleased to provide you with this report regarding
asbestos consulting services conducted at the Vacant House, Associated Barn, Sheds, and
Debris Piles located at 811 Pemberton Hill Road, Dallas, Texas. Asbestos consulting
services were conducted in general accordance with Terracon Proposal No. P94121417
dated November 1, 2012. A description of abatement work activities and other project-related
documents are contained in the attached report and appendices.
We appreciate the opportunity to be of service to you on this project. If there are any
questions concerning the report, or if we may be of further assistance, please contact the
undersigned at 214-630-1010.
Sincerely,
Terracon Consultants, Inc.
anager-Asbestos Services
.~. ........... ,..,stos Consultant License No. 10 -5760
lhoun
Dep td,ent Manager -Asbestos Services
TDSHS Asbestos Consultant License No.10 -5510
Terracon Consultants, Inc. 8901 John Carpenter Freeway, Suite 100 Dallas, Texas 75247
P [214]630 1010 F [214]630-7070 terracon.com
Geotechnical • Environmental • Construction Materials • Facilities
TABLE OF CONTENTS

1.0 GENERAL ........................................................................................................................... 1
1.1 Asbestos Abatement Objective ................................................................................. 1
1.2 Site Location............................................................................................................. 1
2.0 ABATEMENT PROCEDURES ............................................................................................. 2
2.1 Work Area Preparation ............................................................................................. 2
2.2 General ACM Removal Practices ............................................................................. 3
2.3 ACM Waste Handling Procedures ............................................................................ 4
2.4 Final Visual Clearance Inspection ............................................................................. 4
2.5 Encapsulation ........................................................................................................... 5
3.0 AIR SAMPLING ................................................................................................................... 5
3.1 Air Sampling Equipment ........................................................................................... 5
3.2 Final Air Clearance Sampling ................................................................................... 5
3.3 Sample Analysis ....................................................................................................... 5
4.0 RESULTS AND CONCLUSIONS ........................................................................................ 6
4.1 Material Removal and Disposal ................................................................................ 6
4.2 Final Clearance of Abatement Work Areas ............................................................... 6
5.0 GENERAL COMMENTS ...................................................................................................... 6

APPENDICES

Appendix A Air Monitoring Reports
Appendix B Asbestos Project Design
Appendix C Licenses
ASBESTOS ABATEMENT REPORT
Vacant House, Associated Barn, Sheds, and Debris Piles
811 Pemberton Hill Road
Dallas, Texas
Terracon Project No. 94127398C

1.0 GENERAL

This report presents the results of Terracon Consultants, Inc. (Terracon) asbestos
abatement consulting services performed at the Vacant House, Associated Barn, Sheds,
and Debris Piles located at 811 Pemberton Hill Road, Dallas, Texas. Terracon provided
the asbestos consulting services in general accordance with Terracon Proposal No.
P94121417 dated November 1, 2012.

1.1 Asbestos Abatement Objective

The objective of Terracon’s asbestos consulting services was to document the removal
of the previously confirmed asbestos-containing materials (ACM) identified in Terracon’s
Asbestos Survey Reports No. 94127397B and No. 94127398B dated November 1, 2012
and monitor air quality in accordance with regulatory guidelines and project
specifications. This report has been prepared for the exclusive use of the City of Dallas.

Terracon’s abatement monitoring services for this project included:

 Confirming and documenting that the asbestos abatement work was
completed in accordance with the project technical specifications and
applicable federal, state and local regulations.

 Confirming that the ACM to be removed from the structure and associated
debris piles have been removed, and that post-abatement work surfaces
were visually free of asbestos-containing debris.

 Performing final air clearance sampling of asbestos abatement work areas.

Daily and clearance air monitoring reports are attached in Appendix A.

1.2 Site Location

The Vacant House, Associated Barn, Sheds, and Debris Piles are located at 811
Pemberton Hill Road, Dallas, Texas. Asbestos abatement of the following materials was
performed:

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Asbestos Abatement
City of Dallas ■ Vacant House, Associated Barn, Sheds, and Debris Piles
July 30, 2013 ■ Terracon Project No. 94127398C

Vacant House

Wall/ceiling texture (white, bumpy)/joint compound…………..……450 square feet (sq. ft.)
Wall texture (white, drag)/joint compound ...……………………………….…..… 450 sq. ft.
Wall/ceiling texture (white, crow’s foot)/drywall/joint compound…………..... 1,100 sq. ft.
Wall/ceiling texture (multi-color, bumpy)/drywall/joint compound……….…..… 600 sq. ft.
12" x 12" floor tile (gray, marble pattern)……….……………………………….….260 sq. ft.
Sheet flooring/paper (linoleum, white)…….……………........………………....….950 sq. ft.

Debris Pile 9

Asphaltic roofing material (black)………………………..……………....3,200 cubic feet (ft3)

Debris Pile 12

Asphaltic roofing material (black)……………………….. ……………………...……...160 ft3

Debris Pile 16

Mirror mastic (black)………………………………………………...……….…………... 800 ft3

Debris Pile 22

Cementitious panel (gray) …………………………………………………………….…...24 ft3

Debris Pile 23

Thermal pipe wrap (black) ……………………………………..……………………..…...10 ft3

Debris Pile 34

Asphaltic roofing material (black)……………………….. ……..……………...…….…...24 ft3

2.0 ABATEMENT PROCEDURES

2.1 Work Area Preparation

Terracon mobilized Filmon Weldelibanos, a Texas Department of State Health Services
licensed asbestos consultant (License No. 10-5741), to the abatement project site to
perform oversight and air monitoring services during asbestos removal activities.

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Asbestos Abatement
City of Dallas ■ Vacant House, Associated Barn, Sheds, and Debris Piles
July 30, 2013 ■ Terracon Project No. 94127398C

Abatement work was completed in the area as described above. Critical barriers,
containment barriers, and regulated areas were constructed by One Hall Environmental
LP, a Texas Department of State Health Services (TDSHS) licensed asbestos
abatement contractor (License No. 80-0824), under the direction of Ugo Okoro, a
TDSHS licensed asbestos abatement supervisor (License No. 80-4687), in accordance
with the asbestos abatement technical specifications dated March 7, 2013, Texas
Asbestos Health Protection Rules (TAHPR), and National Emission Standards for
Hazardous Air Pollutants (NESHAP) regulations. A copy of the asbestos abatement
technical specifications is included in Appendix B. The containment barriers were
designed and constructed to prevent asbestos fiber migration to areas outside of the
containment. Barriers were sealed at lap joints and gaps with duct tape and spray
adhesive. Outside penetrations were sealed with sheeting or tape. A worker
decontamination unit was attached to the containment areas to provide entry to and exit
from the abatement work area.

Upon completion of containment barrier construction, High Efficiency Particulate Air
(HEPA) filtration machines were placed within the containment structure. The intake
portion of the unit was located inside the enclosure and the filtered air discharge was
directed outside the building. Entrances into the abatement area were identified with
appropriate asbestos warning posters and barrier tape.

Abatement of the debris piles was conducted in a series of regulated areas employing 6-
mil polyethylene sheeting drop cloths and demarcated with appropriate asbestos
warning signage and barrier tape at approaches to the work areas. A central personnel
decontamination chamber was constructed for worker decontamination.

No unauthorized individuals were observed onsite during demolition or abatement
activities.

2.2 General ACM Removal Practices

Removal of the ACM was performed in accordance with project plans and technical
specifications, TAHPR, and NESHAP regulations using wet methods under full
containment or regulated area conditions. The removal of the asbestos materials
consisted of performing the following activities:

 Thoroughly wetting the ACM with amended water,

 Establishing a demarcated area with a drop cloth consisting of polyethylene
sheeting for exterior work under NESHAP regulations,

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Asbestos Abatement
City of Dallas ■ Vacant House, Associated Barn, Sheds, and Debris Piles
July 30, 2013 ■ Terracon Project No. 94127398C

 Establishing a negative pressure containment consisting of polyethylene
sheeting on floors, walls, and the ceiling under TAHPR regulations,

 Placing ACM waste associated with debris piles in an open top transport
trailer lined with two layers of polyethylene sheeting,

 Double-bagging ACM waste or wrapping the ACM waste in two layers of 6-
mil polyethylene sheeting with appropriate labels for abatement associated
with the vacant house; and

 Cleaning exposed substrates, containment surfaces, and polyethylene
sheeting by wet wiping and HEPA vacuuming followed by spray application of
a lock-down encapsulant.

2.3 ACM Waste Handling Procedures

Each bag of ACM waste abated from the vacant house was sealed, wet-wiped, placed
into another 6-mil polyethylene bag labeled with appropriate asbestos warning labels
and generator information and loaded into a covered transport trailer. Items that could
not be placed in bags were wrapped in two layers of 6-mil polyethylene, sealed, wet-
wiped, labeled with the appropriate asbestos warning labels and EPA regulated
generator information, and loaded into a covered transport trailer.

ACM waste associated with the debris piles was loaded into an open-top transport trailer
that was lined with two layers of 6 mil polyethylene sheeting. The polyethylene sheeting
was then sealed before the transport trailer left the site.

ACM waste was transported by One Hall Environmental LP (Transporter License No. 40-
0349) to Skyline Landfill (TCEQ Permit No. 42C), 1201 N Central Street, Ferris, Texas
an appropriately permitted asbestos waste landfill.

2.4 Final Visual Clearance Inspection

Following removal of the ACM within the vacant house, Terracon performed a visual
assessment of each containment area. The floors, ceilings, abatement barrier walls, and
areas adjacent to the containment were checked for visual evidence of residual ACM or
ACM debris. Based on the results of our observations, the abatement contractor was
instructed to either perform additional removal/cleaning or was provided clearance to
proceed with encapsulation.

Following removal of ACM from debris piles, Terracon performed a visual assessment of
each regulated area. The areas adjacent to the debris piles were checked for visual
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Asbestos Abatement
City of Dallas ■ Vacant House, Associated Barn, Sheds, and Debris Piles
July 30, 2013 ■ Terracon Project No. 94127398C

evidence of residual ACM or ACM debris. Based on the results of our observations, the
abatement contractor was instructed to either perform additional removal/cleaning or
was provided clearance to tear down the regulated area.

2.5 Encapsulation

Following a final visual clearance survey and approval by Terracon, the abatement
contractor spray applied a lockdown encapsulant to the exposed substrates and
containment barrier surfaces on the interior of the vacant house.
3.0 AIR SAMPLING

Air sampling was conducted during the course of this project in accordance with the
project specifications, TAHPR and NESHAP.

3.1 Air Sampling Equipment

Air samples collected during this project were obtained using calibrated air sampling
pumps and appropriate asbestos air sampling filter cassettes. Each air sampling
cassette was placed on a stand approximately four (4) feet above the floor, oriented
downward at approximately 45 degrees from the horizontal, and connected to the air
sampling pump via flexible tubing.

3.2 Final Air Clearance Sampling

Final air clearance samples were collected within the interior abatement work areas
following final visual clearance and encapsulation. The air within each containment was
agitated using a 1 horse power leaf blower and stationary fans. A minimum sample
volume of 1,250 liters of air was collected for clearance samples.

Upwind and downwind area sampling was conducted at barriers of the regulated areas
during removal for exterior NESHAP work. Samples were collected upon completion of
the removal of the ACM associated with the debris piles.

3.3 Sample Analysis

Air samples collected during the asbestos abatement project were analyzed by Phase
Contrast Microscopy (PCM) in accordance with National Institute for Occupational Safety
and Health (NIOSH) 7400 method and Texas Department of State Health Services
(TDSHS) requirements. Air samples were analyzed by Terracon’s on-site laboratory.
Terracon’s laboratory is a participant in the American Industrial Hygiene Association
(AIHA) Proficiency Analytical Testing Program (PAT), PAT ID No. 102438, and is
licensed with the State of Texas as an Asbestos Laboratory for PCM, License No.
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Asbestos Abatement
City of Dallas ■ Vacant House, Associated Barn, Sheds, and Debris Piles
July 30, 2013 ■ Terracon Project No. 94127398C

300131. Air sampling reports are attached in Appendix A. Copies of the appropriate
licenses are attached in Appendix C.

4.0 RESULTS AND CONCLUSIONS

4.1 Material Removal and Disposal

Based on our observations, the materials as defined in Section 1.2 of this report were
abated from the site. The ACM waste was transported by One Hall Environmental LP
(Transporter License No. 40-0349) to Skyline Landfill (TCEQ Permit No. 42C), 1201 N
Central Street, Ferris, Texas an appropriately permitted asbestos waste landfill.

4.2 Final Clearance of Abatement Work Areas

Final visual inspections indicated that the ACM to be removed from the abatement work
areas has been removed, and that post-abatement work surfaces were visually free of
asbestos-containing debris. Analytical results of the final air clearance samples
indicated airborne asbestos fiber concentrations within the containment area(s) were
less than the 0.01 f/cc PCM clearance criteria established for the project. Analytical
results of the upwind and downwind samples for exterior NESHAP work indicated
airborne asbestos fiber concentrations within the regulated area(s) were less than the
0.01 f/cc PCM exposure criteria established for the project.

5.0 GENERAL COMMENTS

The analysis and conclusions in this report are based upon data obtained while
monitoring asbestos abatement activities. Abatement activities were conducted in
compliance with applicable regulatory standards (e.g. NESHAP, OSHA). As stated in
Section 4.2 above, Terracon conducted a visual inspection of the abatement areas prior
to collection of final air clearance samples. Analysis of clearance samples indicated
fiber concentrations below the clearance criteria established for the project. The
professional services provided and judgments rendered on this project are consistent
with the level of care and skill ordinarily exercised by members of the profession
currently practicing under similar conditions in the same locale. Terracon does not
warrant the work of regulatory agencies, laboratories or other third parties supplying
information that may have been used in the preparation of this report.
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APPENDIX A

AIR MONITORING REPORTS