EVALUATION ON PROJECT Prepared for: Carson. City, Nevada

Transcription

1 HAZARDOUS MATERIALS EVALUATION STRUCTURAL DEMOLITIO ON PROJECT DESERT LANE LAS VEGAS, NEVADA Prepared for: Nevada Department of Transportation 1263 South Stewart Street Carson City, Nevada Converse Project No July 7, 2014

2 C onverse Consultants Geotechnical Engineering, Environmental & Groundwater Science, Inspection & Testing Services July 7, Mr. Rob Piekarz Environmental Services Division Nevada Department of Transportation 1263 South Stewart Street Carson City, Nevada Subject: Hazardous Materials Evaluation Desert Lane 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 June 20, Based on our understanding of the project, our scopee 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, If you have any questions concerning information contained in this contact us at your convenienc ce. report, please Respectfully submitted, CONVERSE CONSULTANTSS Duane H. Matters, CEM Senior Geologist/A Asbestos and Lead Program Manager 731 Pilot Road, Suite H, Las Vegas Nevada Telephone: (702) Facsimile: (702) lasvegas@converseconsultants.com

3 HAZARDOUS MATERIALS EVALUATION TABLE OF CONTENTS PAGE EXECUTIVE SUMMARY... i HAZARDOUS MATERIALS SURVEY... 1 SURVEY... 1 METHODOLOGY... 1 ASBESTOS... 1 LBP... 2 ASBESTOS AND LBP SURVEY RESULTS... 2 ASBESTOS... 2 LBP... 5 CONCLUSIONS AND RECOMMENDATIONS... 6 ASBESTOS... 6 LBP... 6 ADDITIONAL HAZARDOUS MATERIALS... 7 LIMITATIONS... 7 Appendix A: Asbestos Sample Location Diagrams Laboratory Analytical Report Chain of Custody Documents Appendix B: Lead Sample Location Diagrams Laboratory Analytical Report Chain of Custody Documents Appendix C: Certifications

4 HAZARDOUS MATERIALS EVALUATION EXECUTIVE SUMMARY The suspect ACMs identified and sampled during the course of our investigation consisted of: Brown Ceramic Tile (2 types) Ceramic Wall Tile Drywall Joint Compound Acoustic Ceiling Acoustic Overspray Mirror Mastic Exterior Stucco Roofing Mastic (3 areas) Following the visual portion of the survey, a total of 46 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 two of the materials tested. The materials identified consisted of the following: Roofing Mastic on pitched roof Roofing Mastic on parapet wall above South entry 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: Roofing Mastic on pitched roof Roofing Mastic on parapet wall above South entry The following material was found to contain asbestos in quantities less than one percent (<1%). Joint Compound This material is considered to be non-acm/accm and may remain in place during the demolition process. One damaged suspect lead-based paint (LBP) was identified and sampled during the course of our investigation and consisted of a white paint located on exterior wood roofing beams. The paint film coating tested had concentrations above regulatory action NDOT 1111 Desert Lane DHM-ls i

5 HAZARDOUS MATERIALS EVALUATION levels as set by Fed-OSHA. Other paint film coatings observed appeared to be intact and in good condition. The levels of lead did not meet the Environmental Protection Agency (EPA) definition of lead-based paint (e.g., > 5,000 parts per million (ppm) of lead); however, the Occupational Safety and Health Administration (OSHA) regulates employee exposure to materials with any detectable levels of lead. In regard to the future demolition of the structure, it is the opinion of Converse that the loose and/or peeling paint located on the exterior of the structure will require stabilization and/or component removal by a certified Nevada licensed lead abatement contractor utilizing workers that have undergone the necessary lead training and are EPA certified prior to the demolition process. Waste resulting from the stabilization must be characterized and profiled for lead content prior to determining the transportation and disposal methods. Other suspect LBP paint film coatings in fair condition may remain in place during the demolition process. Those building components with intact paint can be disposed of as non-hazardous construction waste. The demolition contractor must be notified that they will be required to follow OSHA methods of compliance as stated in 29 CFR regarding employee protection. Also, perimeter air monitoring must be conducted during the demolition process to identify possible airborne lead concentrations during the demolition process. Information regarding the suspect ACMs/LBP sampled/analyzed is provided in the body of our report. Additional hazardous materials that have been identified which will require proper disposal prior to the demolition process consist of the following: 10 Smoke Detectors 38 Fluorescent Light Bulbs 3 HVAC Units (Refrigerant) All light fixtures must be evaluated for polychlorinated biphenyl (PCB) containing ballasts during the abatement process NDOT 1111 Desert Lane DHM-ls ii

6 HAZARDOUS MATERIALS EVALUATION HAZARDOUS MATERIALS SURVEY SURVEY On June 20, 2014, Converse Consultants (Converse) conducted a visual and sampling survey at the commercial structure located at 1111 Desert Lane in Las Vegas, Clark County, Nevada. The objective of our evaluation was to identify asbestos and/or damaged lead-containing paint film coatings 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 15, The site consisted of an approximate 4,158 square foot (SF) slab-on grade structure. The site appears to have been formerly occupied as a residential building and converted into an office and included three restrooms, nine offices, a reception area, and a lobby. Interior walls were drywall. The exterior of the building was stucco walls and asphalt and shingle roofing. 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 46 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. 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) NDOT 1111 Desert Lane DHM-ls 1

7 HAZARDOUS MATERIALS EVALUATION LBP A visual survey was performed to identify damaged suspect lead-containing paint film coatings in poor condition (loose and/or peeling) at the site. Sampling of loose and/or peeling paint film coatings was conducted to determine lead concentrations and whether the paint film coatings would require stabilization prior to the demolition process. A total of one paint chip sample was collected. LBP sample collection was conducted by removing the peeling/damaged paint film coating with a hand chisel and then uplifting the representative paint layer. The paint was removed as closely as possible to the substrate. Once the sample was collected, it was transferred to a labeled, sealable sample bag. Following collection, the sample was assigned a field sample number and listed on a laboratory submittal form. A summary of this sample is presented on the EMS laboratory submittal form located in Appendix B. All other paint film coatings observed appeared to be intact and in good condition. Our sampling methodology generally followed the Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing published by the Department of Housing and Urban Development (HUD) in ASBESTOS AND LBP SURVEY RESULTS ASBESTOS The 46 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. Per regulations, each layer 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. Summary of Suspect ACMs Sample ID#/Layer 1111-CT CT CT-03 Suspect Material Asbestos Content (%) EPA Category Quantity Brown Ceramic Tile Brown Grout White Mortar Tan Mastic Black Mastic Brown Ceramic Tile Brown Grout White Mortar Tan Mastic Brown Ceramic Tile Brown Grout Cream Mortar Tan Mastic None Detected Non-ACM N/A None Detected Non-ACM N/A None Detected Non ACM N/A NDOT 1111 Desert Lane DHM-ls 2

8 HAZARDOUS MATERIALS EVALUATION Sample ID#/Layer 1111-CT CT CT-06 Suspect Material Asbestos Content (%) EPA Category Quantity Brown Ceramic Tile White Leveling Compound White Mortar Tan Mastic Brown Ceramic Tile Brown Grout White Mortar Tan Mastic Brown Ceramic Tile Brown Grout White Mortar Cream Mastic None Detected Non ACM N/A None-Detected Non-ACM N/A None-Detected Non-ACM N/A 1111-MM-07 Black Mirror Mastic None-Detected Non-ACM N/A 1111-MM-08 Black Mirror Mastic None-Detected Non-ACM N/A 1111-WT WT WT DW DW DW DW DW DW-17 White Ceramic tile Light Beige Grout Tan Mastic White Ceramic tile Light Beige Grout Tan Mastic White Ceramic tile Light Beige Grout Tan Mastic Cream Texture White Drywall Beige Drywall Cream Texture White Drywall Cream Texture White Drywall Cream Texture White Drywall Cream Texture White Drywall Cream Texture White Drywall None-Detected Non-ACM N/A None Detected Non-ACM N/A None-Detected Non-ACM N/A None-Detected Non-ACM N/A None Detected Non-ACM N/A None Detected Non-ACM N/A None-Detected Non-ACM N/A None-Detected Non-ACM N/A None-Detected Non-ACM N/A 1111-JC-18 Cream Joint Compound None-Detected Non-ACM N/A 1111-JC-19 Cream Joint Compound None-Detected Non-ACM N/A 1111-JC-20 Cream Joint Compound <1 % Non-ACM N/A 1111-JC-21 Cream Joint Compound None Detected Non-ACM N/A 1111-AC-22 White Acoustic None-Detected Non-ACM N/A NDOT 1111 Desert Lane DHM-ls 3

9 HAZARDOUS MATERIALS EVALUATION Sample ID#/Layer Suspect Material Asbestos Content (%) EPA Category Quantity 1111-AC-23 White Acoustic None-Detected Non-ACM N/A 1111-AC-24 White Acoustic None-Detected Non-ACM N/A 1111-AC-25 White Acoustic None-Detected Non-ACM N/A 1111-AC-26 White Acoustic None-Detected Non-ACM N/A 1111-BI-27 Brown Insulation None-Detected Non-ACM N/A 1111-BI-28 Brown Insulation None-Detected Non-ACM N/A 1111-AOS-29 Cream Overspray None-Detected Non-ACM N/A 1111-AOS-30 Cream Overspray None-Detected Non-ACM N/A 1111-AOS-31 Cream Overspray None-Detected Non-ACM N/A 1111-RM-32 Black Roof Mastic 5-10% Chrysotile Category II-NF 19 SF 1111-RM-33 Black Roof Mastic 5-10% Chrysotile Category II-NF 19 SF 1111-RM-34 Black Roof Mastic 3-5% Chrysotile Category II-NF 19 SF 1111-RS RS RS-37 Black Shingle Black Felt Black Shingle Black Felt Black Shingle Black Felt None Detected Non-ACM N/A None Detected Non-ACM N/A None Detected Non-ACM N/A 1111-DM-38 Gray Duct Mastic None-Detected Non-ACM N/A 1111-DM-39 Gray Duct Mastic None-Detected Non-ACM N/A 1111-RM RM-41 Gray Coating Yellow Foam Black Roofing Gray Coating Yellow Foam Black Roofing None Detected Non-ACM N/A None-Detected Non-ACM N/A 1111-RM-42 Black Roof Mastic 5-10% Chrysotile Category II-NF 12 SF 1111-RM-43 Black Roof Mastic 5-10% Chrysotile Category II-NF 12 SF 1111-ES-44 Gray Cementitious Light Gray Cementitious None Detected Non-ACM N/A NDOT 1111 Desert Lane DHM-ls 4

10 HAZARDOUS MATERIALS EVALUATION Sample ID#/Layer 1111-ES-45 Suspect Material Asbestos Content (%) EPA Category Quantity Gray Cementitious Tan Coating None Detected Non-ACM N/A 1111-ES-46 Gray Cementitious None Detected Non-ACM N/A 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. All quantities are estimates and must be field verified by the abatement contractor. The following material was found to contain asbestos in quantities less than one percent (<1%). Material Containing Less Than 1% Asbestos (Trace) MATERIAL LOCATION Cream Joint Compound Appeared to be typical to the building (however only one sample reported trace asbestos). This material is considered to be non-acm/accm and may remain in place during the demolition process. The sample location map, analytical reports, and chain of custody documentation are provided in Appendix A. LBP The paint chip sample collected from the Property was submitted to EMS Laboratories, Inc. located at 117 West Bellevue Drive, Suite #3, in Pasadena, California for analysis by atomic absorption spectroscopy Method EPA 3050M/7420. EMS Laboratories, Inc. is EPA-NLLAP accredited and enrolled in and proficient throughout the American Industrial Hygiene Association Lead Analysis (101634) ELPAT Program. A summary of the material sampled and the analytical result is presented in the following table. Summary of Suspect LBPs Sample # Building Component Paint Color Lead Content (PPM) 1111-LBP Paint on Exterior Wood Roofing Beam White <46 The sample location map, analytical reports, and chain of custody documentation are provided in Appendix B NDOT 1111 Desert Lane DHM-ls 5

11 HAZARDOUS MATERIALS EVALUATION 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 CFR , 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. 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 Suspect Material Location Quantity % Asbestos Detected Roofing Mastic Appeared typical to: pitched roof 19 SF 3-10% Chrysotile Roofing Mastic Appeared typical to: parapet wall over South entrance 12 SF 5-10% Chrysotile It is the opinion of Converse, based on our understanding of the National Emission Standards for Hazardous Air Pollutants (NESHAP), that standard demolition procedures may be used in regard to the structure at the site. LBP The EPA and HUD define LBP as those materials, which contain greater than 1.0 mg/cm 2 or 5,000 parts per million (ppm) lead. Fed-OSHA defines LBP as those materials which contain greater than 0.6 mg/cm 2 or 600 ppm lead, which consequently triggers their lead regulation requiring training, personal protection equipment, and specific work practices. One damaged suspect LBP was identified and sampled during the course of our investigation and consisted of a brown paint film coating located on the wood window frames. The paint film coating tested exhibited concentrations below regulatory action levels as set by Fed-OSHA. Using a conservative approach, OSHA considers paint with measurable lead as a LBP because of possible health concerns. A LBP project is a project disturbing lead-based paint, including sealing over previous paint coats. OSHA regulations require personal protective equipment and procedures be used on nearly all lead-based paint projects, NDOT 1111 Desert Lane DHM-ls 6

12 HAZARDOUS MATERIALS EVALUATION unless specific related project documentation including personnel air monitoring for airborne lead levels verifies the protective equipment and procedures are not necessary. OSHA regulations also require employee training, medical monitoring, and proper signage and safety program implementations similar to what is implemented when handling other hazardous materials. It must be noted that OSHA lead regulations in the OSHA Standards for General Industry require that a Negative Initial Determination for lead exposure be made with paint that contains greater than 0.06% (600 ppm) lead. Paint with less than 0.06% lead should still be treated within OSHA guidelines, but the utilization of proper engineering controls should not generate OSHA action levels of lead exposure. ADDITIONAL HAZARDOUS MATERIALS Additional identified hazardous materials which will require proper disposal prior to the demolition process consist of the following: 10 Smoke Detectors 38 Fluorescent Light Bulbs 3 HVAC Units (Refrigerant) All light fixtures must be evaluated for PCB containing ballasts during the abatement process for the presence of a No PCB label. LIMITATIONS This report has been prepared for the sole benefit and exclusive use of the Nevada Department of Transportation as it pertains to the Project Neon property located at 1111 Desert Lane in Las Vegas, Clark County, Nevada. Our services have been performed with generally accepted practices in the environmental sciences. No other warranty, either expressed 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 NDOT 1111 Desert Lane DHM-ls 7

13 HAZARDOUS MATERIALS EVALUATION NDOT 1111 Desert Lane DHM-ls Thank you for the opportunity to be of service. Should you have any questions or comments regarding this report, or if you requiree further assistance, please do not hesitate to call our office. Respectfully submitted, CONVERSE CONSULTANTSS Nick Wahnefreid Inspector Nevada License No.: I-1762 Reviewed and Approved by: Duane Matters, CEM Senior Geologist/A Asbestos and Lead Program Manager Nevada License No.: IJPM-1066 EPA Lead Risk Assessor #NV-R EPA Lead Designer #NV-P Enclosures: Appendices A, B, and C 8

14 ASBESTOS Appendix A

15 Bathroom Bathroom q Entrance Closet Kitchen 32 Bathroom Closet Closet Closet Legend Asbestos Sample Locations Building Outline Note: Asbestos Locations are not to scale. Contractor must verfiy all quantities Feet Converse Consultants Over 60 Years of Geotechnical Engineering, Environmental & Groundwater Science, Inspection & Testing Services ASBESTOS SAMPLE LOCATION MAP PROJECT NEON 1111 Desert Lane Las Vegas, Nevada Plate No Desert Sample Location Map.mxd Date Created: 07/03/14 Project No:

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38 Bathroom Bathroom Entrance Kitchen Bathroom q Closet 1111-LBS Closet Closet Closet Legend Lead Sample Location Building Outline Note: Asbestos Locations are not to scale. Contractor must verfiy all quantities Feet Converse Consultants Over 60 Years of Geotechnical Engineering, Environmental & Groundwater Science, Inspection & Testing Services LEAD SAMPLE LOCATION MAP PROJECT NEON 1111 Desert Lane Las Vegas, Nevada Plate No Desert Lead Sample Location Map.mxd Date Created: 07/03/14 Project No:

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41 CERTIFICATIONS Appendix C

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