loch lomond - project neon

HAZARDOUS MATERIALS EVALUATION

STRUCTURAL DEMOLITION PROJECT 162-04-311-031

1713 LOCH LOMOND WAY LAS VEGAS, NEVADA

Prepared for:

Nevada Department of Transportation 1263 South Stewart Street

Carson City, Nevada

Converse Project No. 12-43224-01

June 13, 2014

Converse Consultants Geotechnical Engineering, Environmental & Groundwater Science, Inspection & Testing Services

731 Pilot Road, Suite H, Las Vegas Nevada 89119-4429

Telephone: (702) 269-8336 Facsimile: (702) 269-8353 email: [email protected]

June 13, 2014 12-43224-01 Mr. Rob Piekarz Environmental Services Division Nevada Department of Transportation 1263 South Stewart Street Carson City, Nevada 89701 Subject: Hazardous Materials Evaluation 162-04-311-031 1713 Loch Lomond Way Las Vegas, Nevada

Dear Mr. Piekarz:

Converse Consultants (Converse) is pleased to submit the results of the hazardous materials evaluation conducted at the above referenced site on May 12, 2014. Based on our understanding of the project, our scope of services consisted of a visual inspection, bulk sample collection of suspect asbestos-containing materials (ACMs), laboratory analysis, and the generation of this report. The objective of our evaluation was to identify asbestos which may require remediation in regard to the planned demolition of the structure. Additional hazardous materials identified at the site have also been noted for proper removal/disposal, as required. The survey was performed in general accordance with our proposal dated July 18, 2012 and your written authorization to proceed on October 5, 2012. If you have any questions concerning information contained in this report, please contact us at your convenience. Respectfully submitted, CONVERSE CONSULTANTS Philip Childers Senior Project Manager


TABLE OF CONTENTS

PAGE

EXECUTIVE SUMMARY ................................................................................... i HAZARDOUS MATERIALS SURVEY ................................................................. 1

SURVEY ....................................................................................................... 1 METHODOLOGY ........................................................................................... 1

ASBESTOS ............................................................................................... 1 LBP .......................................................................................................... 2

ASBESTOS SURVEY RESULTS ...................................................................... 2 CONCLUSIONS AND RECOMMENDATIONS .................................................... 4

ASBESTOS ................................................................................................... 4 ADDITIONAL HAZARDOUS MATERIALS .......................................................... 6

CLOSURE ....................................................................................................... 6 Appendix A ..................................................................................................... i Appendix B .................................................................................................... ii

Appendix A: Asbestos Laboratory Analytical Report Chain of Custody Documents Sample Location Diagram Appendix B: Certifications


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EXECUTIVE SUMMARY The suspect ACMs identified and sampled during the course of our investigation consisted of:

Acoustic Ceiling Acoustic Overspray Drywall Joint Compound Drywall Surfacing Beige Sheet Flooring/ Tan Sheet Flooring/ black mastic (2 layers) Ceramic Floor Tile 12”x12” Tan Floor Tile/ tan mastic 12”x12” Floor Tile Grey/ Cream Sheet Flooring 12”x12” Floor Tile White/ tan mastic 12”x12” Floor Tile Red 9”x9” Floor Tile brown /black mastic (1 layer) 9”x9” Floor Tile gray /black mastic (1 layer) Sheet Flooring White (1 layer) Fire Brick & Grout Grey Brick & Grout Grey CMU & Mortar Exterior Plaster Roofing Shingles Roofing Mastic

Following the visual portion of the survey, a total of 66 bulk samples were collected from areas representing the homogeneous use of suspect building materials. Polarized Light Microscopy (PLM) indicated the presence of asbestos in excess of 1% by weight in 8 of the materials tested. The materials identified consisted of the following:

Acoustic Ceiling Drywall Surfacing Material Beige/tan Sheet Flooring (both layers), including the black mastic 9”x9” Floor Tile grey (1 layer), including the black mastic 9”x9” Floor Tile brown (1 layer), including the black mastic 12”x12” Tan Floor Tile Acoustic Overspray Black Mastic under Ceramic Tile


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It is the opinion of Converse, based on our understanding of the National Emission Standards for Hazardous Air Pollutants (NESHAP), the following ACMs will require removal by a certified Nevada licensed abatement contractor in order to comply with Federal, State and County regulations prior to the demolition process. It may also be necessary to perform third party air quality sampling after the removal activities to comply with Nevada OSHES and Clark County Department of Air Quality (CCDAQ) regulations.

Acoustic Ceiling Drywall Surfacing Material Beige/tan Sheet Flooring (both layers), including the black mastic Acoustic Overspray

It is the opinion of Converse that with the use of proper engineering controls (i.e. wet methods, perimeter air monitoring, and proper training of the demolition contractor), the approval of Nevada OSHES, CCDAQ, and if no recycling of waste materials is permitted, the following non-friable ACMs may be allowed to stay in place through the demolition process:

9”x9” Floor Tile grey (1 layer), including the black mastic 9”x9” Floor Tile brown (1 layer), including the black mastic 12”x12” Tan Floor Tile Black Mastic under Ceramic tile

No damaged paint was identified and sampled during the course of our investigation. No stabilization of exterior or interior paints will be required. Additional hazardous materials that have been identified, evaluated, and will require proper disposal prior to the demolition process consist of the following:

3 Smoke Detectors 10 Fluorescent Lights 1 HVAC (Refrigerant)


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HAZARDOUS MATERIALS SURVEY SURVEY

On May 12, 2014, Converse Consultants (Converse) conducted a visual and sampling survey at the residential structure located at 1713 Loch Lomond Way in Las Vegas, Clark County, Nevada. The objective of our evaluation was to identify any asbestos and/or lead containing paint film coatings which may require remediation in regard to the planned demolition of the structure. Any additional hazardous materials identified at the site have also been noted for proper removal/disposal, as required. The survey was performed in general accordance with our proposal dated July 18, 2012 and your written authorization to proceed on October 5, 2012. The site consisted of an approximate 3,960 square foot (s.f.) structure on a slab-on grade foundation. The structure was comprised of four bedrooms, two bathrooms, an interior laundry room, and an attached garage. A wood burning fireplace is centrally located, separating the living room and the dining room. The interior wall finishes consisted of drywall with textured surfacing material. The ceiling finishes consisted of sprayed on acoustical ceiling material and/or textured surfacing material. The floor finishes consisted of sheet flooring, carpet, and ceramic tile. The exterior finishes consisted of exterior plaster/stucco. The roofing material consisted of asphalt roofing shingles. METHODOLOGY

ASBESTOS A visual survey was performed to classify each suspect ACM by location and condition in order to establish homogeneous areas for bulk sample collection. Homogeneous areas refer to areas in which similar application, age, and appearance of building materials exist. Following the visual portion of the survey, a total of 66 bulk samples were collected from areas representing the homogeneous use of suspect ACMs. A summary of these samples regarding each material location and condition is found in the chain of custody documentation in Appendix A. In general, suspect ACM bulk samples were obtained by (1) adequately wetting the sample area with a water and surfactant mixture and (2) placing bulk pieces of the building materials into labeled plastic bags. Where possible, bulk samples were obtained to the depth of the affected area. Bulk samples were transferred to an analytical laboratory with continuous chain-of-custody documentation.


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Our sampling methodology followed the general guidelines for bulk asbestos sampling as presented in Section 40, Part 763 (AHERA) of the Code of Federal Regulations (CFR).

LBP

A visual survey was performed to identify any suspect paint film coatings in poor condition (loose and/or peeling) at the site. Loose and/or peeling paint film coatings were not identified during the visual inspection and paint chip sampling was not conducted at the site ASBESTOS SURVEY RESULTS The 66 bulk samples collected from the Property of suspect homogeneous ACMs were submitted to the Converse asbestos lab located in Reno, Nevada for analysis by Polarized Light Microscopy (PLM – US EPA Method 600/R-93/116). The Converse asbestos lab is accredited by the U.S. Department of Commerce, National Institute of Standards and Technology (NIST), under the National Voluntary Laboratory Accreditation Program (NVLAP) for bulk asbestos analysis. For quality assurance purposes, ten percent (10%) of all samples received are subjected to duplicate, replicate or round-robin reanalysis. Per regulations, all layers of a sample must be analyzed as a separate material. A summary of the materials sampled and the analytical results is presented in the following table. Based on laboratory results and our survey, the following materials were found to contain in excess of one percent (>1%) asbestos by weight:

Summary of Suspect ACMs

Sample ID#/Layer

Suspect Material Asbestos Content (%)

EPA Category

Quantity

N-AS-01

Acoustic Ceiling

>1-3% Chrysotile RACM -F ≈ 2200 SF

N-AS-02 Acoustic Ceiling >1-3% Chrysotile RACM -F ≈Listed above

N-AS-03 Acoustic Ceiling 3-5% Chrysotile RACM -F ≈Listed above

N-AS-04 Acoustic Ceiling 3-5% Chrysotile RACM -F ≈Listed above

N-AS-05 Acoustic Ceiling >1-3% Chrysotile RACM -F ≈Listed above

N-DW/JC-06 Joint Compound >1-3% Chrysotile Non-ACM N/A



Sample ID#/Layer


EPA Category

Quantity

N-DW/JC-08 Cream Surfacing Joint Compound

Drywall

>1-3% Chrysotile >1-3% Chrysotile

Non-Detect

RACM-F Non-ACM Non-ACM

≈ 5000 SF

N-DW-11 Cream Surfacing

Drywall >1-3% Chrysotile

Non-Detect RACM-F Non-ACM

N/A

N-DW-12 Cream Surfacing

Drywall >1-3% Chrysotile

Non-Detect RACM-F Non-ACM

≈Listed above

N-SF-15 Beige Sheet Flooring Tan Sheet Flooring

Mastic

Non-Detect 20-30% Chrysotile 10-20% Chrysotile

Non-ACM RACM-F

Category I Non-Friable

≈ 800 SF

N-SF-16 Beige Sheet Flooring Tan Sheet Flooring

Mastic

25-35% Chrysotile 3-5% Chrysotile

10-20% Chrysotile

Non-ACM RACM-F


≈Listed above

N-FT-17 12x12” Grey Floor Tile Cream Sheet Flooring Leveling Compound

Non-Detect 50-60% Chrysotile

Non-Detect

Non-ACM RACM-F Non-ACM

≈Listed above

N-FT-18 12x12” Grey Floor Tile

Mastic Non-Detect

>1-3% Chrysotile

Non-ACM Category I

Non-Friable ≈Listed above

N-FT-25 12x12” Tan Floor Tile

Tan Mastic 5-10% Chrysotile <1% Chrysotile

Category I Non-Friable Non-ACM

≈ 300 SF

N-FT-26 12x12” Tan Floor Tile 5-10% Chrysotile Category I


N-FT-29 9x9” Brown Floor Tile 5-10% Chrysotile Category I

Non-Friable ≈ 360 SF

N-FT-30 9x9” Brown Floor Tile

Black Mastic 5-10% Chrysotile 5-10% Chrysotile


≈Listed above

N-C-31 12x12” Ceramic Tile

Cream Mortar Black Mastic

Non-Detect Non-Detect

20-30% Chrysotile

Non-ACM Non-ACM Category I

Non-Friable

≈ 360 SF

N-C-32 12x12” Ceramic Tile

Cream Mortar Black Mastic


20-30% Chrysotile


Non-Friable

≈Listed above

N-FT-33 12x12” Gray Floor Tile

Tan Mastic Black Mastic


5-10% Chrysotile


Non-Friable

≈Listed above


Black Mastic >1-3% Chrysotile 5-10% Chrysotile


≈ 180 SF


Black Mastic 3-5% Chrysotile

5-10% Chrysotile Category I



Black Mastic 3-5% Chrysotile

5-10% Chrysotile Category I



Black Mastic >1-3% Chrysotile 20-30% Chrysotile


≈Listed above

N-AOS-42 Acoustic Overspray 3-5% Chrysotile RACM-F ≈ 100 SF



Sample ID#/Layer


EPA Category

Quantity

N-AOS-43 Acoustic Overspray 3-5% Chrysotile RACM-F ≈Listed above

N-AOS-44 Acoustic Overspray 3-5% Chrysotile RACM-F ≈Listed above

Note: EPA material classifications include: 1) Friable (F), 2) Non-friable (N), and 3) Non-Friable-potentially friable (N-PF) indicating materials which are currently non-friable which may be made friable by standard renovation or demolition techniques.

The sample location map, analytical reports and chain of custody documentation are provided in Appendix A.

CONCLUSIONS AND RECOMMENDATIONS ASBESTOS Current State and Federal standards define an asbestos-containing material as “any material containing asbestos in excess of one percent by weight.” It is noted that Federal OSHA regulates worker exposure to airborne asbestos fibers with Permissible Exposure Limits (PELs) and requires specific work practices and procedures, per 29 CFR1926.1101, when disturbing materials containing asbestos; State of Nevada protects building occupants from airborne asbestos exposure. Clark County Department of Air Quality (CCDAQ) does not allow any airborne asbestos fiber generation. ACMs containing greater than 1% asbestos are required to be abated prior to the demolition/renovation or remodeling activities that will impact or disturb the asbestos-containing materials resulting in the creation of airborne asbestos fibers. It is the opinion of Converse, based on our understanding of the National Emission Standards for Hazardous Air Pollutants (NESHAP), the following ACMs will require removal by a certified Nevada licensed abatement contractor in order to comply with Federal, State, and County regulations prior to the demolition process. It may also be necessary to perform third party air quality sampling after the removal activities to comply with Nevada OSHES and Clark County Department of Air Quality (CCDAQ) regulations.

ACMs to be Abated

Suspect Material Location Quantity % Asbestos

Detected

Acoustic Ceiling

Appeared typical to: The ceiling in the living room, dining room, laundry room, bedrooms, bathrooms, and

entryway

≈ 2200 SF 1-5% Chrysotile

Acoustic Overspray Appeared typical to: all vents in areas with

acoustic ceiling. 11 vents, 2 registers ≈ 100 SF 3-5% Chrysotile



ACMs to be Abated


Detected

Drywall Surfacing Material Appeared typical to:

The interior walls and ceilings in the four bedrooms, kitchen and bathrooms

≈ 5,000 SF >1-3% Chrysotile

Beige/Tan Sheet Flooring (2 layers)

Black Mastic

Appeared typical to: The kitchen floor to under the dining room tile ≈ 800 SF 20-60%

It is the opinion of Converse that with the use of proper engineering controls (i.e. wet methods, perimeter air monitoring, and proper training of the demolition contractor), the approval of Nevada OSHES, CCDAQ, and if no recycling of waste materials is permitted, the following non-friable ACMs may be allowed to stay in place through the demolition process:

ACMs to be Left in Place


Detected 9x9 Brown Floor Tile

Black Mastic Appeared typical to: The two bedrooms by

the garage ≈ 360 SF 1-10% Chrysotile 5-10% Chrysotile

9x9 Grey Floor Tile Black Mastic

Appeared typical to: The bedroom sharing a wall with the kitchen ≈ 180 SF

>1-3% Chrysotile 5-10% Chrysotile

12x12 Tan Floor Tile Appeared typical to: The living room under the carpet


Black Mastic under Ceramic Tile Appeared typical to: The laundry room and bathroom adjacent


Asbestos abatement must be performed by a State of Nevada licensed asbestos abatement contractor using 40-hour asbestos trained workers and appropriate wet methods and engineering controls. All asbestos abatement workers must have current asbestos training documentation, current medical exams and releases, and current fit tests for the use of personal protective equipment (PPE). The asbestos abatement contractor shall be responsible for estimating and verifying dimensions and quantities of ACMs to be abated. The asbestos abatement contractor shall also be responsible for providing any required notifications in order to comply with CCDAQ and NV-OSHA regulations. In addition, Converse recommends that asbestos abatement activities be monitored by a NV-OSHA certified third party consultant that will document the asbestos abatement contractor’s use of 40-hour asbestos trained workers, engineering controls and work practices, perform final visual inspections for completeness of the abatement work, perform final air clearance testing for re-occupancy and monitor proper waste handling, transport and disposal.



ADDITIONAL HAZARDOUS MATERIALS Additional hazardous materials that have been identified, evaluated, and will require proper disposal prior to the demolition process consist of the following:

3 Smoke Detectors 10 Fluorescent Lights 1 HVAC (Refrigerant)

CLOSURE This report has been prepared for the sole benefit and exclusive use of the Nevada Department of Transportation as it pertains to the property located at 1713 Loch Lomond Way in Las Vegas, Clark County, Nevada. Our services have been performed with generally accepted practices in the environmental sciences. No other warranty, either express or implied, is made. Converse is not responsible for any claims or liable for any claims or damages associated with the accuracy or completeness of information provided by others. This letter report should not be regarded as a guarantee that no further asbestos-containing materials and/or lead-based paint, beyond that which was suspected to be present (and sampled) during our investigation, is present at the Property. Other suspect materials may be uncovered that were previously hidden during renovation or demolition. Additional samples of these materials should be collected and analyzed for asbestos and/or lead-based paint if this occurs. In the event that changes in the nature of the Property occur, or additional relevant information about the Property is brought to our attention, the conclusions and recommendations contained in this assessment may not be valid unless these changes and additional relevant information are reviewed and the recommendations of this assessment are modified or verified in writing. Reliance on this letter report by Third Parties shall be at the Third Party’s sole risk.



Thank you for the opportunity to be of service. Should you have any questions or comments regarding this report, or if you require further assistance, please do not hesitate to call our office. Respectfully submitted, CONVERSE CONSULTANTS Kevin J. Paprocki Inspector Nevada License No.: I-1689

Reviewed and Approved by: Philip Childers Senior Project Manager Nevada License No.: I-IPM-1692 Dist: 1 copy addressee electronic mail

Enclosure: Appendices A and B

Appendix A

ASBESTOS

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Addition

Kitchen

Living Room

Dining Room

Fireplace

Garage

Bedroom

Bedroom

MasterBedroom

Closets

ClosetsCloset

Bedroom

LaundryRoom

Bathroom

Bathroom

Roof Samples

Wall Sample

0102

03

0405

06

07

0809

10

1213

14

16 1511

17

18

19

20

21

22

23

24

25

26

27

28

29

30

3132

3334

35

36

37

38&39

40&4142

43

44

45

46

4748

49

50

51

52

53

54

55

56

57

58

6364

59-62 &65-66

0 10 20 30 40 505Feet

1117 Desert Sample Location Map.mxd Date Created: Project No:

Legend!A Asbestos Legend

Building Outline Converse ConsultantsOver 60 Years of Geotechnical Engineering, Environmental & Groundwater Science, Inspection & Testing Services

ASBESTOS SAMPLE LOCATION MAPPROJECT NEON

05/16/14 12-43224-01

1713 Loch Lomond WayLas Vegas, NevadaPlate No. 1

Note: Asbestos Locations are not to scale. Contractor must verfiy all quantities.

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Appendix B

CERTIFICATIONS