ASBESTOS ABATEMENT TECHNICAL SPECIFICATIONS - City of Houston
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ASBESTOS ABATEMENT TECHNICAL SPECIFICATIONS
Applicant ID: EHR-680
11239 Vailview Drive
Houston, Texas 77016
Prepared For:
City of Houston
Housing and Community Development Department
2100 Travis Street, 9th Floor
Houston, TX 77002
MARCH 2, 2021
Submitted by:
Tetra Tech, Inc.
1500 CityWest Blvd, Ste 1000
Houston, TX 77042
Prepared By:
Terra Nova Consulting, Inc.
Asbestos Consultant Agency No. 100473
ASBESTOS ABATEMENT TECHNICAL SPECIFICATIONS
Applicant ID: EHR-680
11239 Vailview Drive
Houston, Texas 77016
Prepared For:
City of Houston
Housing and Community Development Department
2100 Travis Street, 9th Floor
Houston, TX 77002
Submitted by:
Tetra Tech, Inc.
1500 CityWest Blvd, Ste 1000
Houston, TX 77042
Prepared By:
Terra Nova Consulting, Inc.
Asbestos Consultant Agency No. 100473
Jake Wimberley ____________________
Program Manager, Tetra Tech Signature
Robert L. Voorhies _______________________
Asbestos Consultant, Terra Nova Signature
(DSHS License # 10-5524)
TABLE OF CONTENTS PROJECT DESCRIPTION ............................................................................................................ 1 DECON ......................................................................................................................................... 1 PROJECT OBJECTIVES .............................................................................................................. 2 PROHIBITIONS ............................................................................................................................ 2 CONTRACTORS DUTIES ............................................................................................................ 3 OWNER’S REPRESENTATIVE RESPONSIBILITIES .................................................................. 3 SUBMITTALS ............................................................................................................................... 3 QUALIFICATIONS ........................................................................................................................ 4 ACM STORAGE, HANDLING AND DISPOSAL ........................................................................... 4 EXPOSURE MONITORING .......................................................................................................... 5 PRE-ABATEMENT PREPARATION ............................................................................................. 5 STANDARD ABATEMENT PROCEDURES ................................................................................. 6 REMOVAL ACTIVITIES ................................................................................................................ 9 FINAL CLEARANCE ................................................................................................................... 10 DISPOSAL OF ASBESTOS-CONTAINING WASTE MATERIAL ............................................... 11 ATTACHMENT A LIMITED ASBESTOS SURVEY REPORT
Page 1
Project Description
This project abatement design covers the removal of the materials listed below found to contain
asbestos at regulated levels:
5% Chrysotile in the green floor tiles and 3% Chrysotile in the black mastic in the restroom
o Approximately 47 square feet total
Abatement of materials in good condition which will not be impacted by the planned
repairs and renovations is not required. The green floor tile and mastic in the restroom
that will not be removed or otherwise disturbed by the planned repairs/renovations may
be left in place and abatement is not necessary.
The exact square footage of the materials to be abated must be estimated and reported by the
Abatement Contractor.
The abatement is based on the asbestos survey performed on February 2, 2021 by Mr. Yemisi
Adetomiwa, a Texas Department of State Health Services (DSHS) licensed asbestos inspector
(DSHS License #603665) with Terra Nova Consulting, Inc. a DSHS licensed Asbestos Consultant
(DSHS license # 100473).
The asbestos survey was conducted in association with the City of Houston Housing and
Community Development Department (herein referred to as the Owner’s Representative) in
association with ordinance number 2020-0516.
All abatement will be done inside full negative pressure containment with an attached decon. The
air exhaust will be outside of the building.
All exterior doors, windows and any openings in the exterior walls and ceilings (including recessed
lighting) in the containments must be sealed by at least 1 layer of minimum 6-mil poly critical
barriers. All plastic sheeting must meet current DSHS requirements for strength and tear
resistance.
All walls in the containment not being abated must be covered by either 2 layers of 4 mil poly
sheeting from floor to ceiling or, for areas where floor tile is being removed, 1 layer of 4 mil poly
from floor to ceiling and 1 layer of 6 mil poly along the bottom 4’ of the walls (a splashguard).
All floors in the containment not being abated must be covered by 2 layers of 6 mil poly sheeting.
Decon
A decon with at least 3 separate chambers and working shower is required to be attached to each
containment and must be used for entry and exit from the work area.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.com
Page 1
Negative pressure differential of at least -0.02 inches of water must be maintained at all times
from the beginning of abatement until final clearance. All containments must utilize a functional
manometer with audible alarm. The negative air exhaust will be directed out of the building.
For each containment in the building a minimum of 4 air changes per hour will be required
assuming each machine is functioning at 75% capacity. At least one additional negative air
machine must be on standby in case of failure of a unit or if additional machines are needed to
hold the required pressure differential of -0.02 inches of water.
All abatement must be done by a DSHS licensed asbestos abatement contractor. All personnel
must be DSHS licensed as workers or supervisors. Documentation of current licensing, medical
clearance, respiratory fit testing and training must be on location for each worker.
Final air clearance for all containments for all containments will be by PCM. All clearance samples
will be taken to a licensed laboratory for analysis.
All electrical equipment must be plugged into GFCI outlets. Water and Electricity will be
supplied by the contractor approved by the City of Houston.
Project Objectives
1) Remove ACM as detailed in Project Description;
2) Prevent personnel from inhaling asbestos fibers;
3) Prevent asbestos contamination of adjacent work areas, equipment or fixtures remaining in
abatement area, or general environment outside the building;
4) Ensure all asbestos wastes are disposed of completely and properly;
5) Prevent injury to workers as a result of abatement activities;
6) Perform all activities required by federal, state, and local regulations and contract documents;
7) Document completely all activities.
Prohibitions
1) Dry removal is not authorized unless specifically indicated otherwise.
2) Removal shall occur within regulated areas and shall be accomplished under negative
pressure unless specifically indicated otherwise.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.com
Page 1
3) No asbestos containing materials will be used or placed on or in the facility.
Contractors Duties
1) Provide and pay for labor, materials, tools, and equipment;
2) Execute required notices and, if necessary, revised notices;
3) Comply with codes, ordinances, rules, regulations, and other legal requirements covering this
work;
4) Arrange for the proper transportation and disposal of asbestos waste;
5) Arrange and pay for on-site storage and transportation and disposal of asbestos, including
permits, government fees, and licenses;
6) Water and electricity associated with abatement activities will be supplied by the contractor.
Owner’s Representative Responsibilities
1) Contract for the services of an independent third-party air monitor and a Licensed Asbestos
Consultant to oversee the project as required by DSHS regulations.
2) Pay the notification fee assessed by the Texas Dept. of State Health Services.
Submittals
The following information must be submitted to the Owner’s Representative during abatement
activities:
1) Within 5 days of waste disposal submit a copy of the asbestos waste manifest.
2) Upon Completion of Project: The following information must be submitted to the Owner’s
Representative within 30 days following the completion of abatement activities:
3) Copy of the completed asbestos waste disposal certificate.
4) The project will not be considered complete until all required forms have been provided to the
Owner’s Representative.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.com
Page 1
Qualifications
Abatement Contractor qualifications:
1) Licensed under regulations of the State of Texas as an Asbestos Abatement Contractor.
2) General Personnel requirements:
3) Personnel must be trained in the hazards associated with this operation as required by 29
CFR 1910.1200, 29 CFR 1926.58 (k), and 29 CFR 1926.1101.
4) Personnel shall be thoroughly familiar with Contractors Standard Operating Procedures.
5) All personnel entering the regulated area must have on file at the site a written physician's
statement, fit test for the type of respirators to be used, and copies of all licenses or
registrations.
Abatement Supervisor qualifications:
1) Licensed under regulations of the State of Texas as an Asbestos Abatement Contractor or
Supervisor.
2) Be qualified by training and experience to accomplish those supervisory tasks outlined in 29
CFR 1926.58, paragraph (b) and CFR 1926.1101.
3) Be designated by name in the submittals;
4) Have the authority as outlined in 29 CFR 1926.32 (f) and the authority to cease work without
the approval of a higher authority if work conditions present unacceptable risk to the workers,
facility, or the public.
5) All requirements outlined in the General Personnel requirements.
Abatement Worker Qualifications:
1) Licensed under regulations of the State of Texas as an Asbestos Worker.
2) All requirements outlined in the General Personnel requirements.
ACM Storage, Handling and Disposal
1) Bag up all asbestos wastes from the abatement areas daily. Do not store asbestos wastes in
bags or drums in direct contact with the ground. Bagged asbestos waste may be stored in
the containment overnight, but must be removed the next working day.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.com
Page 1
2) Temporary on-site storage of waste outside the abatement area shall not exceed 2000 cubic
feet (truck or dumpster) and shall be completely lined and fully enclosed. Secure temporary
on-site storage by lock.
3) Disposal will be in an accredited landfill. The contractor must furnish copies of all waste
disposal manifests to the Owner's Representative at the completion of the job.
Exposure Monitoring
Baseline and area sampling is not required for this project. The Contractor is responsible for
personnel sampling of workers to meet OSHA requirements.
Pre-Abatement Preparation
The following preparations must be made prior to beginning removal of any material inside
containment:
Critical Barriers - Place critical barriers to seal off all duct openings, recessed lights, doors, and
other openings in the work areas with 6 mil polyethylene plastic taped securely in place and sealed
around its perimeter with duct tape. Maintain seal until all work, including decontamination, is
complete.
Warning Signs - Erect warning signs around workspace and at every potential entry point from
outside workspace. Warning signs shall be a bright color and size of signs and lettering shall be
no less than OSHA requirements.
Negative Air - negative air machines equipped with HEPA filters must be used in all areas
requiring containment or critical barriers. The flow rate must be sufficient to allow for a minimum
of 4 volume changes per hour in all containments. A minimum of 1 neg air machine must be used
continuously with 1 more on standby.
Plastic Sheeting – All plastic sheeting must meet current DSHS requirements for strength and
tear resistance. All ceiling openings, including recessed lighting, must be covered by at least 1
layer of minimum 6-mil plastic sheeting if they can be safely accessed. All walls in the containment
not being abated must be covered by either 2 layers of 4 mil poly sheeting from floor to ceiling or,
for areas of floor tile removal, 1 layer of 4 mil poly from floor to ceiling and 1 layer of 6 mil poly
along the bottom 4’ of the walls (a splashguard).
Decon - A decon with at least 3 separate chambers and working shower is required to be attached
to each containment and must be used for entry and exit from the work area. The location of the
personnel decons and placement of the negative air filtration equipment and exhausts are subject
to approval by the Consultant and Project Manager.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.com
Page 1
Regulated area - use warning tape to demarcate the regulated area where persons not wearing
proper PPE may not be present.
Standard Abatement Procedures
Containment is required for abatement activities involving removal of friable materials.
Respiratory Protection - Abatement may be done using ½ face HEPA respirators as long as fiber
levels do not exceed 0.5 f/cc 8 hour TWA or 2.0 f/cc STEL on personal samples.
Protective Clothing - All persons entering the regulated area shall wear disposable protective
clothing (Tyvek or equivalent). Shoes or boots shall be worn at all times. Eye protection, hard-
hats, and gloves shall be worn if required by work conditions.
Ventilation - Interior work areas must operate under differential ventilation systems on a 24-hour
basis throughout the project. The number of negative air machines used in each interior work
area must be sufficient to provide a minimum of 4 air volume changes per hour in the work area.
In areas of full containment the pressure differential must be maintained at a minimum of .02
inches of water. A working manometer must be used continuously on all containments.
Decontamination Systems - A working decon consisting of a minimum of a clean room, shower
room, and equipment room will be constructed on the site. Personnel decontamination system(s)
must be provided and used by all workers and visitors exiting a regulated area. Bagged asbestos
waste may be processed through the personnel decontamination system, or through a separate
equipment decon. The Contractor must require that the Personnel Decontamination Unit be the
only means of ingress and ingress for the work area
The Decontamination System is described in greater detail in the following section.
Decontamination System
Materials & Construction
Polyethylene Sheet: A minimum of 2 layers polyethylene film in the largest sheet size possible to
minimize seams, 6.0 mils thick, clear, frosted, or black as indicated.
Duct Tape: Provide duct tape in 2" or 3" widths as indicated, with an adhesive which is formulated
to aggressively stick to sheet polyethylene.
Spray Cement: Provide adhesive, which is specifically formulated to stick tenaciously to sheet
polyethylene.
Shower: Provide a shower, which meets approval of the Owner’s Representative.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.com
Page 1
Shower Head and Controls: Provide a factory-made showerhead producing a spray of water,
which can be adjusted for spray size and intensity. Feed shower with water mixed from hot and
cold supply lines. Arrange so that control of water temperature, flow rate, and shut off is from
inside shower without outside aid.
Filters: Provide cascaded filter units on drain lines from showers or any other water source
carrying asbestos contaminated water from the work area. Provide units with disposable filter
elements as indicated below. Connect so that discharged water passes primary filter and output
of primary filter passes through secondary filter.
Primary Filter - Pass particles 20 microns and smaller
Secondary Filter - Pass particles 5 microns and smaller
Sump Pump: Provide totally submersible waterproof sump pump with integral float switch.
Provide unit sized to pump 2 times the flow capacity of all showers or hoses supplying water to
the sump, through the filters specified herein when they are loaded to the extent that replacement
is required. Provide unit capable of pumping debris, sand, plaster or other materials Washed off
during decontamination procedures without damage to mechanism of pump. Adjust float switch
so that a minimum of 3" remains between top of liquid and top of sump pan.
Personnel Decontamination Unit: Provide a Personnel Decontamination Unit consisting of a serial
arrangement of connected rooms or spaces, Changing Room, Shower Room, Equipment Room.
Require all persons without exception to pass through this decontamination unit for entry into and
exiting from the work area for any purpose. Do not allow parallel routes for entry or exit. Do not
remove equipment or materials through Personnel Decontamination Unit. Provide temporary
lighting within decontamination units as necessary to reach a lighting level of 100-foot candles.
Changing Room (clean room): Provide an area that is physically and visually separated from the
rest of the building for the purpose of changing into protective clothing. Require workers to
remove all street clothes in this area, dress in clean disposable coveralls, and don respiratory
protection equipment. Do not allow asbestos contaminated items to enter this room.
An existing room may be utilized as the Changing Room if it is suitably located and of a
configuration whereby workmen may enter the Changing Room directly from the Shower Room.
Protect all surfaces of room with sheet plastic.
Maintain floor of changing area dry and clean at all times. Do not allow overflow water from
shower to wet floor in changing room.
Damp wipe all surfaces after each shift change with a disinfectant solution.
Provide a continuously adequate supply of disposable bath towels.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comPage 1
Provide posted information for all emergency phone numbers and procedures.
Shower Room: Provide a completely water tight operational shower to be used for transit by
cleanly dressed workers heading for the Work Area from the Changing Area, or for showering by
workers headed out of the Work Area after undressing in the Equipment Room.
Separate this room from the rest of the building with airtight walls fabricated of 6-mil polyethylene.
Separate this room from the Changing and Equipment Rooms with airtight walls fabricated of 6-
mil polyethylene.
Provide splash proof entrances to Changing and Equipment Rooms with 2 doors.
Provide showerhead and controls.
Provide temporary extensions of existing hot and cold water and drainage, as necessary for a
complete and operable shower.
Provide a soap dish and a continuously adequate supply of soap and maintain in sanitary
condition.
Arrange so that water from showering does not splash into the Changing or Equipment Rooms.
Arrange water shut off and drain pump operation controls so that a single individual can shower
without assistance from either inside or outside of the work area.
Provide flexible hose shower head.
Pump Waste Water to drain or to storage for use in amended water. If pumped to drain, provide
20 micron and 5 micron wastewater filters in line to drain or waste water storage. Change filters
daily or more often if necessary. Locate filters inside shower unit so that water lost during filter
changes is caught by shower pan.
Provide hose bibb.
Airlock: Provide an airlock between the shower room and the equipment room. This is a transit
area for workers. Separate this room from the equipment room by a sheet plastic doorway.
Equipment Room (contaminated area): Require work equipment, footwear and additional
contaminated work clothing to be left here. This is a change and transit area for workers. Separate
this room from the work area by a 6-mil polyethylene flap doorway.
Separate this room from the rest of the building with airtight walls fabricated of 6-mil polyethylene.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comPage 1
Doors: Fabricated from overlapping sheets with openings a minimum of three feet (31) wide.
Configure so that sheeting overlaps adjacent surfaces. Weigh sheets at bottoms as required so
that they quickly close after being released. Put arrows on sheets to indicate direction of overlap
and/or travel. Provide a minimum of six feet (61) between entrance and exit of any room.
Removal Activities
All asbestos containing materials will be removed following the procedures in this section.
Products
Wetting Materials: For wetting prior to disturbance of asbestos-containing materials use either
amended water or a removal encapsulant:
Amended Water: Provide water to which a surfactant has been added. Use a mixture of surfactant
and water which results in wetting of the asbestos containing material and retardation of fiber
release during disturbance of the material equal to or greater than that provided by the use of one
ounce of a surfactant consisting of 50% polyoxyethylene ester and 50% polyoxyethylene ether
mixed with five gallons of water.
Removal Encapsulant: Provide a penetrating type encapsulant designed specifically for removal
of asbestos containing material. Use a material which results in wetting of the asbestos-
containing material and retardation of fiber release during disturbance of the material equal to or
greater than that provided by Water amended with a surfactant consisting of 50% polyoxyethylene
ester and 50% polyoxyethylene either mixed with five gallons of water.
Polyethylene Sheet: A single polyethylene film in the largest sheet size possible to minimize
seams, 4.0 or 6.0 mils thick as indicated, clear, frosted, or black as indicated. Duct Tape: Provide
duct tape in 2” or 3" widths as indicated, with an adhesive which is formulated to aggressively
stick to sheet polyethylene.
Spray Cement: Provide spray adhesive in aerosol cans which is specifically formulated to stick
tenaciously to sheet polyethylene.
Disposal Bags: Provide 6 mil thick leak-tight polyethylene bags labeled with one of the two labels
with text as follows:
First Label:
CAUTION
CONTAINS ASBESTOS FIBERS
AVOID OPENING OR BREAKING CONTAINER
BREATHING ASBESTOS IS HAZARDOUS TO YOUR HEALTH
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comPage 1
Second Label: Provide in accordance with 29 CFR 1910.1200(f) of OSHA's Hazard
Communication standard:
DANGER
CONTAINS ASBESTOS FIBERS
AVOID CREATING DUST
CANCER AND LUNG DISEASE HAZARD
BREATHING AIRBORNE ASBESTOS, TREMOLITE, ANTHOPHYLLITE, OR
ACTINOLITE FIBERS IS HAZARDOUS TO YOUR HEALTH
Wet Removal
Thoroughly wet to satisfaction of Owner’s Representative asbestos-containing materials to be
removed prior to stripping and/or tooling to reduce fiber dispersal into the air. Accomplish wetting
by a fine spray (mist) of amended water or removal encapsulant. Saturate material sufficiently to
wet to the substrate without causing excess dripping. Allow time for water or removal encapsulant
to penetrate material thoroughly. If amended water is used, spray material repeatedly during the
work process to maintain a continuously wet condition. If a removal encapsulant is used, apply in
strict accordance with manufacturer's written instructions. Perforate outer covering of any
installation which has been painted and/or jacketed in order to allow penetration of amended
water or removal encapsulant, or where necessary, carefully strip away while simultaneously
spraying amended water or removal encapsulant on the installation to minimize dispersal of
asbestos fibers into the air.
Mist work area continuously with amended Water whenever necessary to reduce airborne fiber
levels.
Remove saturated asbestos-containing material in small sections from all areas. Do not allow
material to dry out. As it is removed, simultaneously pack material while still wet into disposal
bags. Twist neck of bags. Bend over and seal with minimum three wraps of duct tape. Clean
outside and move to wash down station adjacent to material decontamination unit.
When all traces of the material being abated have been removed and all walls, floors, ceilings,
and other surfaces cleaned a final clearance inspection will be made by the Owner's
Representative. If no additional cleaning is required spray all surfaces thoroughly with
encapsulant.
Final Clearance
1) Work area shall be free of visible asbestos contamination.
2) Plastic, tape, and all disposable contaminated equipment shall be disposed of as asbestos
containing.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comPage 1
3) All equipment used in the work area shall be thoroughly decontaminated by wet wiping and
HEPA vacuuming prior to removal from work area.
4) A DSHS licensed Asbestos Consultant or Project Manager will perform a complete visual
inspection of the work area. When in the opinion of the Consultant or Project Manager the
containment is sufficiently clean the Contractor may proceed with encapsulation.
5) Encapsulant will be sprayed in the enclosure when all debris, equipment, and other
materials have been removed.
6) The Consultant or a Licensed Project Manager/Air Monitoring Technician with an Asbestos
Consultant Agency will conduct clearance air monitoring inside all containments. Aggressive
clearance techniques will be used. A minimum of 1250 liters per sample will be collected at a
maximum rate of up to 15 l/min. Fiber concentrations must be .01 f/cc or less to pass final
clearance. A minimum of 2 samples per containment will be collected unless the containment
is less than 1,000 square feet in which case 1 sample may be collected, with not less than
one sample per 2,000 square feet of containment area.
7) If any air sample fails PCM clearance, contractor shall re-clean entire area prior to re-testing.
Disposal of Asbestos-Containing Waste Material
Friable asbestos-containing waste material and debris, which is packaged in accordance with the
provision of this Specification, may be disposed of at designated sanitary landfills when certain
precautions are taken.
Notice to Appropriate Environmental Protection Agency regional office.
Notice and Permit from Appropriate State and/or Local Agencies.
Dispose of non-friable asbestos containing material in accordance with applicable regulations.
Labeling
All packaged asbestos containing waste material and debris (i.e., bags, drums, bladders, etc.) will
be labeled in accordance with 40 CFR Part 61 Asbestos NESHAP Revision; Final Rule.
Submittals
Submit copies of all manifests and landfill receipts to Owner’s Representative within 30 calendar
days of project completion.
General
Carefully load containerized waste on sealed trucks or other appropriate vehicles for transport.
Exercise care before and during transport, to ensure that no unauthorized persons have access
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comPage 1
to the material. Do not store disposal-bagged material outside of the work area. Take bags from
the work area directly to a sealed truck or dumpster.
Do not transport disposal-bagged materials on open trucks. Double bagged material may be
transported on open trucks if they are first loaded in sealed drums. Label drums with same
Warning labels as bags. Uncontaminated drums may be reused. Treat drums that have been
contaminated as asbestos-containing waste and dispose of in accordance with this specification.
Advise the sanitary landfill operator, at least twenty-four hours in advance of transport, of the
quantity of material to be delivered.
At the burial site, sealed plastic bags may be carefully removed from the truck. If bags are broken
or damaged in transit, leave in the truck and clean entire truck and contents using proper
procedures.
Retain receipts from landfill for materials disposed of.
The Owner’s Representative may withhold final payment to the Abatement Contractor until all the
properly executed manifests have been submitted to the Owner’s Representative.
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comATTACHMENT A
LIMITED ASBESTOS SURVEY REPORT
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comLIMITED ASBESTOS SURVEY REPORT
Conducted At:
Applicant ID: EHR-680
11239 Vailview Drive
Houston, Texas 77016
Prepared For:
City of Houston
Housing and Community Development Department
2100 Travis Street, 9th Floor
Houston, TX 77002
FEBRUARY 12, 2021
Submitted by:
Tetra Tech, Inc.
1500 CityWest Blvd, Ste 1000
Houston, TX 77042
Prepared By:
Terra Nova Consulting, Inc.
Asbestos Consultant Agency No. 100473February 12, 2021
Via electronic mail
Mr. Gerardo Rodriguez
City of Houston
Housing and Community Development Department
2100 Travis Street, 9th Floor
Houston, Texas 77002
RE: Limited Asbestos Survey
11239 Vailview Drive, Houston, Texas 77016
Applicant ID: EHR-680
Project No.: COH-PH2-15
Dear Mr. Rodriguez:
Tetra Tech, Inc. (Tetra Tech) is pleased to present the results of the Limited Asbestos Survey performed
at the above referenced property. This report includes the results of findings from visual reconnaissance
and laboratory analyses. Site photographs are included in Attachment A.
Tetra Tech was contracted by the City of Houston Housing and Community Development Department
(HCDD), in association with ordinance number 2020-0516, to conduct a limited asbestos survey at the
above referenced residence prior to rehabilitation of the property.
BACKGROUND
Asbestos-containing materials (ACM) are defined as any material or product that contains more than 1
percent asbestos according to Asbestos Hazard Emergency Response Act of 1986 (AHERA). The
purpose of the sampling is to evaluate the presence, quantity, location, and characterizations of ACM that
may require abatement and/or special disposal in accordance with the National Emissions Standards for
Hazardous Air Pollutants (NESHAP) regulations created by the U.S. Environmental Protection Agency
(EPA). State of Texas Department of State Health Services (DSHS) Licensed Asbestos Inspectors
collected bulk samples of suspect ACMs in accordance with NESHAP regulations and the AHERA
protocols.
SAMPLE COLLECTION AND ANALYTICAL PROCEDURES
Prior to collecting bulk samples of suspect ACM, distinct homogeneous sampling areas and specific
sampling sites were defined based on building construction dates. A homogeneous sample area can be
defined as a material that is similar in appearance, color, and generally having the same episode of
installation as surrounding "like" material. Attempts were made in all cases to obtain representative
samples of like materials as this is the most cost-effective method for determination of ACM. It should be
assumed by the building owner, contractor, and the abatement contractors that the composition of like
materials in a single homogeneous area is the same.
A total of twelve (12) samples were collected from the suspect ACMs. The samples were submitted under
chain-of-custody to Eurofins J3 Resources, an independent laboratory in Houston, Texas, to be analyzed
utilizing the Environmental Protection Agency’s Polarized Light Microscopy (PLM) Method for the
Detection of Asbestos in Bulk Insulation Samples (EPA 600/R-93/116) or 40 CFR, Part 763, Subpart F,
as appropriate. Components of non-homogenous or layered materials are analyzed separately andPage 2
reported individually if asbestos is found in one or more layers or components. Eurofins J3 Resources is
accredited by the National Voluntary Laboratory Accreditation Program (NVLAP), participates in the
NVLAP and AIHA Bulk Asbestos Sample Quality Assurance Programs, and is licensed to analyze bulk
asbestos samples collected in the State of Texas (TDSHS #30-0273).
Ms. Yemisi Adetomiwa, Asbestos Inspector License No. 603665, performed the field survey and collected
bulk samples of the suspect ACMs.
RESULTS & CONCLUSIONS
Analytical results of confirmed ACMs are presented in the table below. A copy of the laboratory analytical
report is included in Attachment B.
Analytical Results
Sample Sample Material Condition / Quantity
Percent Asbestos
Number Location Description Friable (sqft)
Entrance White textured
PH2-15-01 No asbestos N/A 40
hallway ceiling
Master White textured
PH2-15-02 No asbestos N/A 170
Bedroom 1 ceiling
White textured
PH2-15-03 Restroom No asbestos N/A 47
sheetrock ceiling
Den/Dining White sheetrock
PH2-15-04 No asbestos N/A 160
room wall
Hallway 3 /
White sheetrock
PH2-15-05 (Bedroom No asbestos N/A 40
wall
area)
White sheetrock
PH2-15-06 Bedroom 2 No asbestos N/A 90
wall
5% Chrysotile in
green floor tile Damaged/
PH2-15-07
3% Chrysotile in Friable
12x12 light green black mastic
Restroom floor tile and 47
black mastic
PH2-15-08
Not analyzed per
N/A
client request
PH2-15-09
PH2-15-10
White sheetrock
Garage No asbestos N/A 426
ceiling
PH2-15-11
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comPage 3
Analytical Results
Sample Sample Material Condition / Quantity
Percent Asbestos
Number Location Description Friable (sqft)
White sheetrock < 1% Chrysotile in
PH2-15-12 Kitchen Fair / Friable 63
ceiling texture
Notes:
Bold – ACM detected
Red – ACM above limits detected
N/A – not applicable
1 – Condition and Friability not listed for non-ACM
Based on the analytical results in the table above, asbestos was detected in the following material:
5% Chrysotile in the green floor tiles and 3% Chrysotile in the black mastic in the restroom
o Approximately 47 square feet total
Page 4
exposed during renovation or demolition activities, these materials should be sampled and analyzed for
asbestos content prior to any disturbance.
CLOSING
Should you have any questions or comments regarding this report, please do not hesitate to contact Jake
Wimberley at 346-252-7651.
Sincerely,
Jake Wimberley Robert L. Voorhies (DSHS License #105524)
Program Manager, Tetra Tech Asbestos Consultant, Terra Nova Consulting, Inc.
ATTACHMENTS
Attachment A Photographic Log
Attachment B Laboratory Report
Attachment C General Provisions and Limitations
Tetra Tech, Inc.
1500 CityWest Boulevard, Suite 1000, Houston, TX 77042
Tel: 832.251.5160
www.tetratech.comATTACHMENT A Photographic Log
ATTACHMENT B Laboratory Report
Eurofins J3 Resources, Inc.
6110 W. 34th Street, Houston, Texas 77092
Phone: (713) 290-0221 - Fax: (713) 290-0248
J3Resources.com
Bulk Asbestos Fiber Analysis by Polarized Light Microscopy (PLM)
Appx E Sub E 40 CFR 763 / EPA 600/R-93/116
Order #: JH21125102
Rebecca Thomas
Project #: COH-PH2-15
Tetra Tech, Inc.
Date Received: 02-Feb-2021
2901 Wilcrest Dr, Ste 400
Date Analyzed: 02-Feb-2021
Houston TX 77042
Date Reported: 04-Feb-2021
City of Houston Phase 2-11239 Vailview Dr.
Asbestos Non-Asbestos
Sample ID # Sample Description Constituents Constituents
PH2-15-01 Wallboard, Brown/ White, Homogeneous None Detected Cellulose Fiber 10%
No Texture Present Fibrous GlassEurofins J3 Resources, Inc.
6110 W. 34th Street, Houston, Texas 77092
Phone: (713) 290-0221 - Fax: (713) 290-0248
J3Resources.com
Bulk Asbestos Fiber Analysis by Polarized Light Microscopy (PLM)
Appx E Sub E 40 CFR 763 / EPA 600/R-93/116
Order #: JH21125102
Rebecca Thomas
Project #: COH-PH2-15
Tetra Tech, Inc.
Date Received: 02-Feb-2021
2901 Wilcrest Dr, Ste 400
Date Analyzed: 02-Feb-2021
Houston TX 77042
Date Reported: 04-Feb-2021
City of Houston Phase 2-11239 Vailview Dr.
Asbestos Non-Asbestos
Sample ID # Sample Description Constituents Constituents
PH2-15-06 LAYER 1 None Detected Non-Fibrous Material 100%
Texture, White, Homogeneous
LAYER 2 None Detected Cellulose Fiber 100%
Tape, Beige, Homogeneous
LAYER 3 None Detected Non-Fibrous Material 100%
Joint Compound, White, Homogeneous
LAYER 4 None Detected Cellulose Fiber 10%
Wallboard, Brown/ White, Homogeneous Fibrous GlassEurofins J3 Resources, Inc.
6110 W. 34th Street, Houston, Texas 77092
Phone: (713) 290-0221 - Fax: (713) 290-0248
J3Resources.com
Bulk Asbestos Fiber Analysis by Polarized Light Microscopy (PLM)
Appx E Sub E 40 CFR 763 / EPA 600/R-93/116
Order #: JH21125102
Rebecca Thomas
Project #: COH-PH2-15
Tetra Tech, Inc.
Date Received: 02-Feb-2021
2901 Wilcrest Dr, Ste 400
Date Analyzed: 02-Feb-2021
Houston TX 77042
Date Reported: 04-Feb-2021
City of Houston Phase 2-11239 Vailview Dr.
Asbestos Non-Asbestos
Sample ID # Sample Description Constituents Constituents
PH2-15-12 LAYER 1 Chrysotile~!: eurofins I
Revision #v7/MF
Revision Date: 310912020
IH CHAIN OF CUSTODY J3 ~eso1m:e
D Open Lab Fee Euroiins
.
md5'J&J.e only)
I( 2-3q v . . \ be.
~
C\.LV\.IU.A-
Submitter Name: Bill to: ~ ---a);-rct li_d, .TV'\G
=-
Company: II i'•> .' \ . . · .· $i9li~~\ifil~)jl·{•.. ·~,;;.•.. / .•.•·.·.}} '•• J.: ...... ·....... ;·.· ... : . ,;
I tr:I ciJ-o m1~"-t'\
"\,ro,(I/\ («~.,. ( f Date: o~'" O!:L :;1..ITime: ,;r· J
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Relinquished By:
Received By: : " Date: ,Ji / b'/ Time: IW!IJ
'V' '
Relinquished By:
L/'-./"'1
Date: 7 Time:
Received Bv: Date: Time:
*Emergency TAT requires prior Jab notification. All samples analyzed outside normal business hours are charged at Emergency rate.
**TAT1s are in Business Days rather than Hours (l.e.1 Day TAT= End of Next Business Day}
Eurofins J3 Resources, Inc. • 6110 West 34th Street• Houston, Texas 77092 • tel: 713-290-0221 • fax: 713-290-0248
Page_of_
Eurofins J3 Resources, Inc. • 3113 Red Bluff Road • Pasadena, Texas 77503 • tel: 713-290-0223 • fax: 713-290-0248l l ·i 3 q V0ve ! v1 .e. v0 ~:
Revision #v7/MF
Revision Date: 3/09/2020 IH CHAIN OF CUSTODY ~~ eurofins [
J3 Resources
Project Name%J 1t~".'.V)~I\- . -()(r,_9v?-C. l
Project Numbe ' H--Q tt:l..~15 Page_of_
SAMPLE IDENTIFICATION
SAMPLE NUMBER SAMPLE LOCATION I MATERIAL VOLUME/CONDITION
Ptt"i-is-o I ~(,h-i'w\t.Q.. 4.\.cJil,wcv'-1 /hi~ h:W SILCit,. (fe:vt~
I --
0/t;2....-15:- 0 'J_ ~ Jl'(om 1 (Jx~) /lrATTACHMENT C General Provisions and Limitations
GENERAL PROVISIONS
The removal or disturbance of any ACM is regulated under the Occupational Safety and Health
Administration (OSHA), the Environmental Protection Agency (EPA), National Emission Standards for
Hazardous Air Pollutants (NESHAP); and the Texas Department of State Health Services’ (DSHS) Texas
Asbestos Health Protection Rules (TAHPR) and must be performed with the proper engineering and
regulatory controls by a licensed asbestos abatement contractor and consultant. In most cases, a
licensed asbestos consultant is required to prepare project specific work procedures and perform on-site
project monitoring (inclusive of the final work area visual inspection and air clearance). This provides
critical documentation for the building owner.
EPA has not prohibited the manufacture of non-friable asbestos-containing materials, such as vinyl
floorings, mastics, roofing materials, and joint compound. Materials arriving from other countries can
contain asbestos.
In addition, House Bill 1927 and the TDSHS’ TAHPR prohibit the installation of asbestos-containing
materials in public and commercial buildings, unless there is not an alternative material or part. Material
Safety Data Sheets (MSDS) must be obtained for building materials or replacement parts. As a result,
any future replacement materials should be checked for the presence of asbestos or certification from a
licensed engineer or architect should be obtained stating that the MSDS have been reviewed and in their
professional opinion all parts of the building affected by the planned renovation or demolition do not
contain asbestos.
LIMITATIONS
This survey was authorized by Tetra Tech and prepared for the City of Houston (COH) for use in
evaluating suspect ACMs prior to intended rehabilitation of the property. This report was produced for the
exclusive use of the COH and its authorized representatives. Further dissemination of this report without
prior written authorization from Tetra Tech or any of its subcontractors and the COH is strictly prohibited.
This work product was performed consistent with standards of care and diligence normally practiced by
recognized environmental consulting firms in performing services of a similar nature in this region.
Un-sampled asbestos-containing construction materials may be located in interior and exterior materials,
on the roof, within walls, ceiling cavities, underneath ceiling tiles, below flooring or grade, above ceiling
tiles, and in other non-accessible areas. Therefore, if any suspect material, not sampled during this
survey, is encountered during any building activities, it should be sampled and tested for possible
asbestos content by qualified personnel prior to the continuation of these activities. Precaution should be
used in relation to these un-sampled materials until proper sampling and analyses have determined their
asbestos content. The condition of the ACMs may change gradually or suddenly, depending upon use,
maintenance, or accident.
Tetra Tech and its subcontractors relied on the results of the analytical testing performed by Eurofins J3
Resources, an independent laboratory in Houston, Texas. Tetra Tech and its subcontractors do not
guarantee or warranty the analytical results provided by Eurofins J3 Resources but assumes that the
results are true and accurate.The conclusions and recommendations in this report are professional opinions based solely upon visual observations of the site, at the time of our investigation, and the results of laboratory analyses. These opinions describe only the reasonably foreseeable conditions present at the time of our investigation in areas that were observed. They cannot necessarily apply to site conditions that Tetra Tech or any of its subcontractors are not aware of and have not had the opportunity to evaluate. Tetra Tech or any of its subcontractors do not warrant against future changes in operations or conditions, nor do they warrant conditions present of a type or at a location not addressed in this study. Tetra Tech or any of its subcontractors cannot act as insurers, and no expressed or implied representation or warrant is included or intended in our report except that our work was performed, within the limits prescribed by our client, with the customary thoroughness and competence of our profession. This report does not constitute an appraisal of value or legal opinion and Tetra Tech or any of its subcontractors make no representations or warranties of the fitness of the property for any specific use or value. Tetra Tech and its subcontractors assume no responsibility for the client’s, or a third party’s, misinterpretation or improper use of this report. Tetra Tech and its subcontractors shall not be liable for any special, consequential, or exemplary damages resulting in whole or in part, from the Client’s use of this report. Liability on the part of Tetra Tech or any of its subcontractors to any impacted third party is limited to the monetary value paid for this report.
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