B08_Attach_25_MEVE_218998_FIO_Hazardous_Materials_Survey_Report_2023_07_14.pdf

Ensolum, LLC | Environmental, Engineering & Hydrogeologic Consultants

776 East 2nd Ave | Durango, CO 81301 | ensolum.com

July 14, 2023

Hennebery Eddy Architects, Inc.

921 SW Washington St Ste 250 Portland, Oregon 97205 Attention: Heather Crane Re: Hazardous Material Survey

Chapin Mesa Historic Buildings and Houses 1 Mesa Verde National Mesa Verde National Park CO, 81330

Dear Ms. Crane:

Ensolum, LLC (Ensolum), has prepared this report for Hennebery Eddy Architects, Inc.

(Hennebery) following a hazardous materials survey conducted at nine buildings located at 1 Mesa Verde National, Mesa Verde National Park, Colorado. The survey was conducted on the Museum and Residences 1 through 8 (Site Buildings, Figure 1).The hazardous materials survey included an inventory of potentially regulated materials including but not limited to polychlorinated bisphenols (PCBs), naturally occurring radioactive material (NORM), Mercury, hydrocarbons etc.

and the sampling of suspect asbestos containing materials (ACM) and lead based paint that may be impacted by planned future renovations.

Ensolum personnel completed the survey on May 22, 23, 24, and 25, 2023, at the Site Buildings.

Only accessible materials scheduled to be impacted by planned renovation activities at the Site Buildings were included in this survey. New building materials, such as roofing on all buildings and flooring in recently renovated residences were not included in this survey. Hidden materials, materials that would impact the integrity of the building by sampling and materials beyond reasonable access to the inspectors during the site visit were not evaluated as part of the survey.

REGULATED BUILDING MATERIAL SURVEY

Ensolum surveyed the interior and the exterior of the nine buildings for regulated building materials (RBM). Additionally, lead sampling was conducted using X-Ray Fluorescence (XRF) per Department of Housing and Urban Development (HUD), United States Environmental Protection Agency (EPA), and State of Colorado standards and definitions of lead-based paint.

The lead paint sampling was conducted on May 23, 2023 by Burnside Enterprises. Lead paint was identified in each of the buildings. The complete results of that survey are included as a separate report and included as Appendix E.

Regulatory agencies (HUD, EPA) have defined LBP as a paint or other surface coating that contain >5,000 parts per million (mg/kg) of lead or more than 0.5% of lead by weight. Based on the analytical results, some of the paint tested does meet the definition of LBP.

The Occupational Safety and Health Administration (OSHA) regulates worker exposure of paint which contains lead, regardless of concentration. Currently, any proposed renovation/demolition is subject to the OSHA regulations (29 CFR 1926.62 – Lead Exposure in Construction). The OSHA regulation defines specific training requirements, engineering controls and working

Chapin Mesa – Mesa Verde National Park practices for construction personnel subject to this standard. Federal and state regulations also require characterization of demolition/renovation debris to determine the proper disposal procedures.

ASBESTOS CONTAINING MATERIAL SAMPLING OBJECTIVES

The EPA 40 Code of Federal Regulations (CFR) Part 61, National Emission Standards for Hazardous Air Pollutants (NESHAP), prohibits the release of asbestos fibers to the atmosphere during renovation or demolition activities. The asbestos NESHAP rule requires that potentially regulated asbestos-containing material (RACM) be identified, classified, and quantified prior to planned disturbance, renovation, or demolition activities. In addition, the Colorado Department of Public Health and Environment (CDPHE) Regulation 8 Part B (Reg 8) requires buildings be inspected for asbestos prior to demolition or renovation.

The survey was conducted by Mr. Reece Hanson and Mr. Zach Myers, Colorado-certified Asbestos Building Inspectors (CABI’s). A copy of Mr. Hanson and Mr. Myers certifications and the Ensolum Asbestos Consulting Firm Certification are included as Appendix A. The survey was completed in accordance with EPA 40 CFR Part 763, CDPHE Regulation 8.

Visual Assessment

The asbestos survey activities within the Site Buildings began with a visual observation of the work areas to identify functional spaces and homogeneous materials that may be affected during planned demolition/renovation activities. Building materials and components observed in the buildings consisted of drywall systems and texturing, block sealant on CMU and concrete walls, various wall and ceiling plasters, stair tread mastic, carpet mastics, cove base and mastics, ceiling tiles, linoleum flooring and mastics, miscellaneous caulking, window glazing, thermal system insulation, various fireproofing/insulation material, plaster paper backing, and fire brick.

Asbestos Sample Collection

A physical assessment of each suspect homogeneous ACM was conducted to assess the condition of the material as friable or non-friable. The EPA defines friable material as one that, when dry, can be crumbled, pulverized, or reduced to a powder by hand pressure. Friability was assessed by physically touching suspect ACM. Ensolum classified the current condition of the suspect ACM and the potential for damage to the suspect ACM.

Bulk samples of suspect ACM were collected in general conformance with CDPHE Regulation 8, AHERA, and Table 2 of EPA Asbestos in Buildings: Simplified Sampling Scheme for Friable Surfacing Materials, also known as the Pink Book, but discretion of sample locations was used when applicable. The suspect ACM samples collected were obtained by physically removing a small portion of the suspect material using a sharp instrument. The disturbance of adjacent material was kept to a minimum during the sampling process. Appropriately attired inspectors collected bulk samples using wet methods as applicable to reduce the potential for fiber release.

Each sample was placed into a separate labeled container with a sample number, which was then sealed. The sampling instrument was cleaned after each sample was collected. After sample collection, any surficial damage was repaired, as applicable, to seal the disturbed area.

The asbestos sample locations are depicted on the Homogeneous Sampling Area Diagrams included as Appendix C. A total of 225 bulk samples of suspect ACM were collected during Ensolum's survey.

The suspect ACM samples were submitted to Eurofins Reservoirs Environmental (Reservoirs), Inc. in Denver, Colorado, an independent laboratory that has successfully participated in the

National Voluntary Laboratory Accreditation Program and is accredited by the American Industrial Hygiene Association. The bulk samples were submitted under chain-of-custody procedures to Reservoirs for analysis by polarized light microscopy (PLM) per EPA methodology (EPA-600/R- 93/116). Visual estimation was used to obtain the percentage of asbestos present within the bulk samples and the point counting method was used for 41 samples that contained 5% or less asbestos by visual estimation to get a more accurate analysis.

REGULATORY OVERVIEW

The CDPHE Regulation 8, Hazardous Air Pollutants Control, Part B, Asbestos, and 5 Code of Colorado Regulations (CCR) 1001-10, Part B applies, in general, to buildings, facilities, and associated components. The CDPHE Air Quality Control Division (AQCC) is the implementing regulatory agency for NESHAP regulations.

The Occupational Safety and Health Administration (OSHA) asbestos standard for the construction industry (29 CFR 1926.1101) regulates workplace exposure to asbestos. The OSHA standard requires that employee exposure to airborne asbestos fibers be maintained below 0.1 asbestos fibers per cubic centimeter (0.1 f/cc) of air for an 8-hour day. The OSHA standard classifies construction and maintenance activities that could disturb ACM, and specifies work practices and precautions, which employers must follow when engaging in each class of regulated work.

The asbestos NESHAP rule (40 CFR Part 61) regulates asbestos fiber emissions and asbestos waste disposal practices. It requires the identification and classification of existing building materials prior to renovation or demolition activities. Under NESHAP, asbestos-containing building materials are classified as either friable, Category I non-friable, or Category II non-friable

ACM.

Friable materials are those that, when dry, may be crumbled, pulverized, or reduced to powder by hand pressure. Category I non-friable ACM includes packings, gaskets, resilient flooring covering, and asphalt roofing products. Category II non-friable ACM are any materials other than Category I materials that contain more than 1 percent (%) asbestos.

RACM is defined by CDPHE Regulation 8 as friable ACM and Category I and Category II non-friable ACM that is in poor condition and has become friable or will be subjected to sanding, grinding, cutting, or abrading. In addition, RACM includes Category II non-friable ACM that has a high probability of becoming or has become crumbled, pulverized, or reduced to powder by the forces expected to act on the material during demolition or renovation operations.

RACM must be removed prior to renovation or demolition activities. If the amount of RACM exceeds the threshold levels of 260 linear feet (LF), 160 square feet (SF), or the volume equivalent of one 55-gallon drum for a non-single family dwelling or 50 LF on pipes, 32 SF on other surfaces, or the volume equivalent of a 55-gallon drum for single-family residential dwellings the owner or operator must provide the CDPHE-APCD with written notification of planned removal activities at least 10 working days prior to the commencement of asbestos abatement activities. Removal of RACM must be conducted by a trained and appropriately licensed asbestos abatement contractor.

ACM SURVEY FINDINGS

Of the 225 suspect ACM samples collected by Ensolum, seven (7) samples contained greater than 1% asbestos and are defined as ACM. These materials are located in the Museum basement, and Residences 4 and 6. Forty-one samples were re-analyzed by the point counting method and found to contain 1% or less asbestos. Materials containing 1% or less asbestos are currently not regulated by CDPHE and the EPA; however, OSHA regulation 1926.1101, regarding the protection of worker health and safety still applies. Ensolum recommends following OSHA guidelines to ensure that asbestos permissible exposure limits are not exceeded by workers.

These materials are located in the Museum basement, and Residences 1 through 8. Table 1 provides a summary of all samples that had detectable asbestos content. Summary figures identifying the location of ACM and OSHA regulated materials in each building are included in Appendix B. Homogenous materials identified during survey activities are defined in Table 2. The sample locations and homogenous sampling area diagrams are included in Appendix C. Specific sample locations and the results of the physical and visual assessment are described in the Sample Collection Forms (Appendix D). The laboratory analytical reports are included in Appendix F, and a photographic log of ACM is included in Appendix G.

RESULTS

Based on the results of the laboratory analysis of the survey conducted by Ensolum, the following materials were defined as ACM:

ASBESTOS CONTAINING MATERIAL (ACM)

Mesa Verde National Park: Capin Mesa

Homogenous Material Building Field Description Lab

Description

Type (Surf, Misc, TSI)/

Friable (Yes/No)

Square footage

(SF)

Asbestos Content

MVM-DWC1 Museum Basement Off-white drywall under smooth to light sponge texture

A: Beige texture Misc/Yes 1,335 SF A: 1.50

R4-LN2 Residence 4

Fake marble pattern, brown-white sheet linoleum with yellow mastic under carpet

A: Beige/gray sheet flooring

B: Yellow mastic

Misc/No 770 SF A: 65

B: 3.17

R6-FP1 Residence 6 Black, charcoal coated fibrous paper, cream colored A: Beige felt Misc/No 4 SF A: 100

R6-MA3 Residence 6 Gray, hard, degraded caulk B: Black caulk Misc/No <1 SF B: 1.8

The following materials were determined to contain 1% or less asbestos using the point count method:

OSHA REGUALTED MATERIALS

Mesa Verde National Park: Chapin Mesa

Homogenous Material

General Material Location Field Description Lab

Description

Type (Surf, TSI, Misc)/Friable (Yes/No)

Square Footage (SF)

Asbestos Content (%)

MVM-DWT1 Museum basement White, smooth to light sponge drywall texture

A: White texture Surf/Yes 1,335 SF A: 0.50

R1-DWC1-01 Residence 1 White drywall with brown paper A: White texture Misc/Yes 640 SF A: <0.25

R2-DWC1 Residence 2 White drywall under smooth texture

A: White texture

C: White joint compound

Misc/Yes 640 SF A: <0.25

C: 0.50

R2-DWT2 Residence 2 Rough sponge texture over plaster A: White texture Surf/Yes 110 SF A: 0.50

R3-DWT1 Residence 3 Rough sponge texture on walls A: White texture Surf/Yes 955 SF A: <0.25

R3-DWC1 Residence 3 Drywall under rough sponge texture A: White texture Misc/Yes 955 SF A: 0.50

R4-DWC1 Residence 4 Degraded, brown plaster or drywall on ceiling

B: White plaster Misc/Yes 920 SF B: 0.25

R5-DWT1 Residence 5 Smooth texture over drywall A: White texture Surf/Yes 140 SF A: 1.00

R5-DWC1 Residence 5 Drywall under smooth texture A: White texture Misc/Yes 140 SF A: 0.50

R5-DWT2 Residence 5 Sponge texture A: White texture Misc/Yes 100 SF A: 0.50

R5-DWT3 Residence 5 Smooth texture or layer of paint over plaster

A: White/Gray plaster Surf/Yes 2,100 SF A: 0.25

R5-FP1 Residence 5 Gray cementitious material in flue A: Gray plaster Misc/No 1 SF A: 0.25

R5-PL1 Residence 5 Tan, crumbly plaster over chicken wire A: Gray plaster Misc/Yes 2,100 SF A: <0.25

R5-WG1 Residence 5

White, crumbly window glazing, similar to other residences

A: White window glazing Misc/Yes <1 SF A: 0.25

R6-DWT2 Residence 6 Smooth-sponge texture over plaster A: White texture Surf/Yes 1,600 SF A: 0.75

R7-DWT1 Residence 7 Smooth texture over plaster A: White texture Surf/Yes 2,250 SF A: <0.25

R8-SC1 Residence 8 Sink undercoating A: Beige ceiling texture Misc/No 4 SF A: 0.50

R8-PL1 Residence 8 Gray cementitious plaster

A: White/gray plaster Misc/No 980 SF A: 0.25

RECOMMENDATIONS

Based on the analytical results, Ensolum recommends the following prior to the planned renovations:

• Renovation activities will result in the disturbance of the identified friable and non-friable materials, which, based on the quantities are considered to be RACM, these materials are listed in the ACM Table above. Based on the quantities of RACM planned for abatement, the abatement must be completed in accordance with CDPHE Regulation 8, a permit must be submitted to the CDPHE-AQCC;

• At a minimum, any removal of materials identified to contain 1% or less asbestos are still subject to compliance with the OSHA regulations and must be completed by qualified personnel; however, Ensolum recommends that material containing trace amounts of asbestos be abated as RACM to prevent contamination of the building.

• Upon completing the abatement, each containment area should have final visual and air clearance completed prior to removing the containment areas. The final visual inspection and air clearance must be completed by a certified Air Monitoring Specialist (AMS);

• It is recommended these results be incorporated into the existing Asbestos Management Plan for the buildings, or an Asbestos Management Plan be developed and includes the findings of this survey;

• Should the ACM or RACM remain in the building, an Asbestos Operations and Maintenance Program should be prepared; and

• If the proposed renovation does not take place, Ensolum recommends abatement of any damaged ACM or OSHA regulated materials identified in Table 1 prior to re-occupancy.

REGULATED BUILDING MATERIAL INVENTORY

Objectives

In order to identify RBM that could require special waste handling or disposal as part of deconstruction or demolition activities, Ensolum compiled an inventory of building components, materials, and equipment that might contain RBM. This inventory describes suspect RBM within the structures at the Site.

Ensolum conducted a visual inspection of the structures (interior and exterior) to assess and inventory the presence of building materials regulated by the EPA via the Resource Conservation and Recovery Act (RCRA). Information related to liquids, chemicals, refining waste, impacted soil, and impacted groundwater impacts are not included in this report.

RBM Regulatory Overview

Materials defined as RBMs include, but are not limited to:

• Batteries;

• Pesticides;

• Mercury‐containing devices;

• Mercury‐containing light wastes;

• Radioactive containing devices; and

• Electronic devices and components.

Regulatory agencies recommend that lighting ballast be evaluated for the following and that ballasts be disposed of properly prior to renovation and demolition:

• Polychlorinated Biphenyl (PCB)‐containing lighting ballasts in accordance with the Toxic Substance Control Act (TSCA); and

• Di(2‐ethylexyl)phthalate (DEHP)‐containing lighting ballasts in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).

Ozone‐depleting compounds are defined by the EPA, which includes the following:

• Stationary appliances including any refrigeration and air conditioning equipment that contains and uses an ozone depleting compound refrigerant, which is not portable by nature or design.

RBM Inventory Findings

Ensolum identified the following materials as potential regulated building materials:

• Various types of florescent light bulbs;

• Mercury-containing switches

• Exit signs;

• Drinking fountains;

• Smoke detectors; and

• Air conditioning units.

Descriptions, quantities, and locations of the suspect RBM and their potential hazardous material are presented in Table 3.

RECOMMENDATIONS

Ensolum recommends the following regarding the identified suspect RBM:

• Suspect RBM should be removed from the structures prior to demolition activities or additional sampling will be required to determine if the suspect RBM is non-regulated;

• Debris generated by the demolition/deconstruction activities should be sampled for the Toxicity Characteristic Leaching Procedure (TCLP) for waste characterization prior to disposal;

• RBM removal must be completed by qualified individuals; and

• RBM must be properly packaged, transported, manifested, and disposed of or recycled at a licensed facility in accordance with applicable local, state, and federal regulations.

LIMITATIONS

Ensolum performed its services consistent with the level of care and expertise exercised by asbestos and lead professionals performing the same or similar services at the same time and in the same geographic area. No express or implied warranties apply to these services or this report.

Due to the limited extent of the assessment and sampling activities at the Site, Ensolum cannot and does not imply, warranty, or guarantee that materials not sampled contain no asbestos, lead or RBM’s. This Hazardous Materials Survey was intended to identify reasonably accessible materials most likely to contain asbestos as well as other hazardous materials in quantities subject to regulation. Please note that due to the non-destructive nature of the survey, the potential exists for additional materials to be present in hidden or concealed areas (i.e. beneath new flooring and roofing, above ceilings, in voids, chases, behind wall coverings, etc.).

The quantity estimates presented in the report were based upon observations during the survey.

While it is believed that the estimated quantities are reasonable, unanticipated conditions could be present in inaccessible or un-surveyed areas. Ensolum does not warrant or guarantee the quantity estimates, and the use of such estimates shall be at the user’s own risk and shall constitute a release and agreement to defend and indemnify Ensolum from and against any liability.

All conclusions and recommendations in this report represent the professional opinions of the Ensolum personnel involved with the project. The results, findings, conclusions, and recommendations expressed in this report are based on access provided and conditions observed, and samples taken during Ensolum’s survey of the building. The information contained in this report is relevant as of the date on which the field work was performed and should not be relied upon to represent site conditions at a later date. This study and report were prepared on behalf of and for the exclusive use of Hennebery solely for their use and reliance in determining the presence of hazardous materials in identified areas of the Site. The results of this report are not intended or to be construed as legal interpretation of existing federal, state, or local environmental, health and safety laws or regulations. Ensolum assumes no responsibility or liability for errors in information or data provided to Ensolum by the Client or any third party or developments resulting from activities or situations outside the scope of this project.

Contractors or consultants reviewing this report must draw their own conclusions regarding further investigation or remediation deemed necessary. Ensolum does not warrant the work of regulatory agencies, laboratories or other third parties supplying information, which may have been used in the preparation of this report. No warranty expressed or implied is made. Drawings and diagrams contained in this report are for informational purposes only, and proportion and scales are approximate. Contractors or consultants reviewing this report must draw their own conclusions regarding further investigation or remediation deemed necessary. This report is not to be considered as a bid specification or bid document.

CLOSING

Ensolum appreciates the opportunity to provide environmental services to Hennebery. If you have any questions, please contact the undersigned at (970) 210-9803.

Sincerely, ENSOLUM, LLC

Reece Hanson Staff Geologist CABI (cert #27130)

Zach Myers Staff Geologist CABI (cert #27978)

APPENDICES

Figure 1 – Site Location Map

Table 1 – Asbestos Containing Sample Results

Table 2 – Homogenous Materials

Table 3 – Regulated Building Material Inventory

Appendix A – Ensolum Certifications

Appendix B – ACM and OSHA Materials Summary Figures

Appendix C – Homogenous Sampling Area Diagrams

Appendix D – Sample Collection Forms

Appendix E – Lead Based Paint Survey Reports

Appendix F – Laboratory Analytical Reports

Appendix G – ACM Photographic Log

Appendix H – Regulated Building Material Photographic Log

FIGURE

FIGURE

Site Map

1 Mesa Verde National Mesa Verde National Park, CO 81330

Montezuma County, Colorado

Sources: Environmental Systems Research Institute (ESRI), Maxar, Microsoft

Mesa Verde National Park

0 80 16040 Feet

Legend

Residence

Museum

Museum

TABLES

Sample ID Date Sample Location Field Description Laboratory Description HA # Type (Surf, TSI, Misc.)

Quantity (LF or SF)

Friable or Non-Friable

Asbestos Content

MVM-DWT1-03 Basement lab #28, south wall, 4' east of west, 4.5' AFL A: White texture A: 2 (PC: 0.50)

MVM-DWT1-04 Basement break room #23, north wall above lockers, 1' east of west, 6.5' AFL A: White texture A: 2 (PC: <0.25)

MVM-DWC1-03 5/24/2023 Basement lab #28, south wall, 4' east of west, 4.5' AFL

Off-white drywall under white, smooth to light sponge texture

A: Beige texture B: Brown/white drywall 2 Misc 1,335 SF Friable A: 2 (PC: 1.50)

B: ND

R1-DWC1-01 5/23/2023 Laundry room ceiling, 4' west of east, 4' south of north White drywall with brown paper A: White texture 4 Misc 640 SF Friable A: TR (PC: <0.25)

R2-DWC1-01 Bathroom, east wall, 4' south of north, 3.5'

AFL

A: White texture B: Brown/white drywall

A: TR (PC: <0.25)

B: ND

R2-DWC1-02 Kitchen, 2.5' north of entrance, 0.5' west of east cupboards, ceiling

A: White texture B: Beige tape

C: White joint compound D: Brown/white drywall

A: TR (PC: <0.25)

B: ND

C: TR (PC: 0.50)

D: ND

R2-DWC1-03 South area of bedroom, east wall, 5' AFL, 3' north of south

A: White texture B: Beige tape

C: White joint compound D: Brown/white drywall

A: ND

B: ND

C: TR (PC: 0.25)

D: ND

R2-DWT2-01 Dining room, east wall, 0.5' south of doorway to office, 2.5' AFL A: White texture A: 2 (PC: <0.25)

R2-DWT2-02 Dining room above counter, south wall A: White texture A: 2 (PC: 0.25)

R2-DWT2-03 N end of dining room W wall, 2' S of bedroom door, 3' AFL A: White texture A: 2 (PC: 0.50)

R3-DWT1-03 5/22/2023 Northwest corner of dining room, west wall, 8' AFL, 2' south of north Rough sponge texture on walls A: White texture 1 Surf 955 SF Friable A: 2 (PC: <0.25)

5/22/2023 Rough sponge texture over plaster 4 Surf 110 SF

TABLE 1

ASBESTOS CONTAINING SAMPLE RESULTS

Mesa Verde National Park: Chapin Mesa Ensolum Project #07C2242001

Museum

5/24/2023 White, smooth to light sponge drywall texture 1 Surf 1,335 SF Friable

Residence #1

Residence #2

5/22/2023 3 Misc 640 SF FriableWhite drywall under smooth texture

Friable

Residence #3

Quantity (LF or SF)

Friable or Non-Friable

Asbestos Content

TABLE 1

ASBESTOS CONTAINING SAMPLE RESULTS

Mesa Verde National Park: Chapin Mesa Ensolum Project #07C2242001

R3-DWC1-01 Southeast of bathroom, 3' AFL A: White texture B: Beige plaster

A: 2 (PC: <0.25)

B: ND

R3-DWC1-03 Northwest corner of dining room, west wall, 8' AFL, 2' south of north

A: White texture B: Beige plaster

A: 2 (PC: 0.50)

B: ND

R4-DWC1-01 5/24/2023 Kitchen ceiling, 4.8' south of north, 3.8' east of west Degraded, brown plaster or drywall on ceiling A: White texture

B: White plaster 2 Misc 920 SF Friable A: ND

B: TR (PC: 0.25)

R4-LN2-01 Bedroom #4, 3' west of east, 4' north of south A: Beige/gray sheet flooring B: Yellow mastic

A: 65

B: TR, PC: 2.39

R4-LN2-02 Bedroom #8, south edge, 6" east of west A: Beige/gray sheet flooring B: Yellow mastic

A: 65

B: TR, PC: 0.06

R4-LN2-03 Living room, west edge, 5' south of north A: Beige/gray sheet flooring B: Yellow mastic

A: 65

B: TR, PC: 3.17

R5-DWT1-01 Bedroom #4, 6' east of west, 2' south of north A: White texture A: 2 (PC: 1.00)

R5-DWT1-02 Bedroom #4, 3' west of east, 4' north of south A: White texture B: Brown/white drywall

A: 2 (PC: 0.50)

B: ND

R5-DWT1-03 Bedroom #4, 2' east of west, 4' south of north A: White texture A: 2 (PC: 0.75)

Residence #5

5/23/2023 Smooth texture over drywall 1 Surf 140 SF Friable

Residence #4

5/24/2023 Fake marble pattern, brown-white sheet linoleum with yellow mastic under carpet 7 Misc 770 SF Non-Friable

5/22/2023 Drywall under rough sponge texture 2 Misc 955 SF Friable

Quantity (LF or SF)

Friable or Non-Friable

Asbestos Content

TABLE 1

ASBESTOS CONTAINING SAMPLE RESULTS

Mesa Verde National Park: Chapin Mesa Ensolum Project #07C2242001

R5-DWC1-01 Bedroom #4, 6' east of west, 2' south of north A: White texture B: Brown/white drywall

A: 2 (PC: 0.50)

B: ND

R5-DWC1-02 Bedroom #4, 3' west of east, 4' north of south A: White texture B: Brown/white drywall

A: 2 (PC: 0.50)

B: ND

R5-DWC1-03 Bedroom #4, 2' east of west, 4' south of north A: White texture B: Brown/white drywall

A: 2 (PC: 0.25)

B: ND

R5-DWT2-01 Above door to storage room A: White texture B: Brown/white drywall

A: 2 (PC: 0.50)

B: ND

R5-DWT2-02 South center bathroom, 2' north of south, 4' west of east

A: White texture B: Brown/white drywall

A: 2 (PC: 0.25)

B: ND

R5-DWT2-03 Bathroom, northwest corner, 2' east of west, 3' south of north A: White texture A: 2 (PC: 0.50)

R5-DWT3-01 Bedroom #7, south wall by east side of window frame A: White plaster A; TR (PC: <0.25)

R5-DWT3-02 Living room, East wall by outlet, 0.5' AFL, 6' south of north A: Gray plaster A; TR (PC: <0.25)

R5-DWT3-03 Kitchen, west wall, 2' south of west doorway, 5' AFL

A: white texture B: Gray plaster

A: ND

B: TR (PC: 0.25)

R5-DWT3-04 Bedroom #4, east wall, at former floor level, 5' north of south A: Gray plaster A; TR (PC: <0.25)

Friable5/23/2023 Drywall under smooth texture 2 Misc 140 SF

Friable

5/23/2023 Smooth texture or layer of paint over plaster 5 Surf 2,100 SF Friable

5/23/2023 Sponge texture 3 Surf 100 SF

Quantity (LF or SF)

Friable or Non-Friable

Asbestos Content

TABLE 1

ASBESTOS CONTAINING SAMPLE RESULTS

Mesa Verde National Park: Chapin Mesa Ensolum Project #07C2242001

R5-FP1-01 Around old flue in center of house A: Gray plaster A; TR (PC: 0.25)

R5-FP1-02 Around old flue in center of house A: Gray plaster A; TR (PC: <0.25)

R5-PL1-01 Living room, north wall, 0.5' above former floor level, 13' west of east A: Gray plaster A: TR (PC: <0.25)

R5-PL1-02 Bedroom #4, east wall, at former floor level, 5' north of south A: Gray plaster A: TR (PC: <0.25)

R5-PL1-03 Kitchen, west wall, 2' south of west doorway, 5' AFL A: Gray plaster A: TR (PC: <0.25)

R5-WG1-01 5/23/2023 Garage window (exterior) White, crumbly window glazing same as other residences A: White window glazing 9 Misc <1 SF Friable A: 2 (PC: 0.25)

R6-DWT2-01 Hall, north wall below thermostat, 5.5' AFL A: White texture A: TR (PC: <0.25)

R6-DWT2-03 Kitchen, east wall, 5' south of north, 4' AFL A: White texture A: TR (PC: 0.75)

R6-FP1-01 A: Beige felt A: 100

R6-FP1-02 A: Beige felt A: 100

5/23/2023 Black, charcoal coated fibrous paper, cream colored 7 Misc 4 SF

Residence #6

5/23/2023 Smooth-sponge texture over plaster

5/23/2023 Tan, crumbly plaster over chicken wire 6 Misc 2,100 SF Friable

5/23/2023 Gray cementaceous material in flue 7 Misc 1 SF

3 Surf 1,600 SF Friable

Non-FriableInside old stove firebox

No

Quantity (LF or SF)

Friable or Non-Friable

Asbestos Content

TABLE 1

ASBESTOS CONTAINING SAMPLE RESULTS

Mesa Verde National Park: Chapin Mesa Ensolum Project #07C2242001

R6-MA3-02 5/23/2023 Exterior wall, ~5' AFL Gray, hard, degraded caulk A: Gray caulk B: Black caulk 13 Misc <1 SF Non-Friable A: ND

B: 3 (PC: 1.8)

R7-DWT1-02 Southeast bedroom, east wall, 4' AFL, 8' north of south A: White texture A: TR (PC: <0.25)

R7-DWT1-04 Southwest bedroom, East wall, 4.5' north of south, 3' AFL

A: White texture B: Gray plaster

A: TR: (PC: <0.25)

B: ND

R8-SC1-01 A: Beige ceiling texture A: 2 (PC: 0.25)

R8-SC1-02 A: Beige ceiling texture A: 2 (PC: 0.50)

R8-PL1-01 A: White/gray plaster A: 2 (PC: 0.25)

R8-PL1-02 A: White/gray plaster A: 2 (PC: <0.25)

Notes:

' - feet Misc - Miscellaneous material N - North " - inches ND - non detect S - South % - percent asbestos by visual estimate PC: asbestos content determined by the point counting method E - East Bold - indicates materials that are >1% asbestos SF - square feet W - West AFL - above floor level Surf - surfacing material HA - homogenous area TR - trace LF - linear feet TSI - thermal system insulation

Non-FriableUnder kitchen sink

5/24/2023 Gray cementaceous plaster 7 Misc 980 SF Friable Intersection between circular building and hallway, east wall, where wall was already damaged

5/24/2023 Sink undercoating 5 Misc 4 SF

Residence #7

5/23/2023 Smooth texture over plaster 2 Surf 2,250 SF Friable

Residence #8

Material HA # Type (Surf, Asbestos Containing (Yes or No)

Sample numbers

White, smooth to light sponge drywall texture 1 Surf Yes MVM-DWT1-01, MVM-DWT1-02, MVM-DWT1-03, MVM-DWT1-04, MVM-DWT1-05

Off-white drywall under white, smooth to light sponge texture 2 Misc Yes MVM-DWC1-01, MVM-DWC1-02, MVM-DWC1-03

Sponge texture under white and/or yellow paint 3 Surf Yes MVM-DWT2-01 through MVM-DWT2-03

Grayish drywall under sponge texture 4 Misc Yes MVM-DWC2-01 through MVM-DWC2-03

White concrete sealant 5 Surf No MVM-BS1-01 through MVM-BS1-05

Gray, granular, cementaceous plaster 6 Misc No MVM-PL1-01 through MVM-PL1-03

Tan, brittle floor coating/mastic 7 Misc No MVM-FM1-01 through MVM-FM1-03

Tan, sticky mastic with brown vinyl/rubber 8 Misc No MVM-STM1-01 and MVM-STM1-02

Green sticky carpet mastic with some brittle yellow 9 Misc No MVM-CM1-01 through MVM-CM1-03

Tan, sticky, slightly brittle carpet mastic, 12" X 10 Misc No MVM-CM2-01 and MVM-CM2-02

Tan, sticky, slightly brittle carpet mastic underneath 24"x24" black square grid pattern carpet squares, 0.5" squares 11 Misc No MVM-CM3-01 and MVM-CM3-02

Tan, sticky, slightly brittle carpet mastic underneath 24"x24" black, gray, blue carpet squares in bookstore 12 Misc No MVM-CM4-01 and MVM-CM4-02 brown 4" cove base with gray mastic 13 Misc No MVM-CBM1-01 through MVM-CBM1-03

2'X4' Ceiling tiles 14 Misc No MVM-CT1-01 through MVM-CT1-03

Gray, cementaceous plaster 1 Misc No R1-PL1-01 and R1-PL1-02

Tan linoleum with floor backing 2 Misc No R1-LN1-01 and R1-LN1-02

Smooth/ sponge texture wall and ceiling surfacing 3 Surf No R1-DWT1-01 through R1-DWT1-03

TABLE 2

HOMOGENEOUS MATERIALS

Mesa Verde National Park, Chapin Mesa Ensolum Project #07B7174001

Museum

Residence #1

Asbestos Containing (Yes or No)

Sample numbers

TABLE 2

HOMOGENEOUS MATERIALS

Mesa Verde National Park, Chapin Mesa Ensolum Project #07B7174001

White drywall with brown paper 4 Misc No R1-DWC1-01 , R1-DWC1-02, R1-DWC1-03

White, silicone-like caulking 5 Misc No R1-MA1-01 and R1-MA1-02

Very thin white caulk 6 Misc No R1-MA2-01 and R1-MA2-02

Off-white, firm, crumbly caulking 7 Misc No R1-MA3-01 and R1-MA3-02

Off-white, thick caulking 8 Misc No R1-MA4-01 and R1-MA4-02

Rough textured white plaster on inside of masonry walls 1 Misc No R2-MP1-01 through R2-MP1-03

Smooth texture over drywall 2 Surf No R2-DWT1-03 through R2-DWT1-03

White drywall under smooth texture 3 Misc Yes R2-DWC1-01, R2-DWC1-01, R2-DWC1-03

Rough sponge texture over plaster 4 Surf Yes R2-DWT2-01, R2-DWT2-01, R2-DWT2-03

Tan cove base with tan mastic 5 Misc No R2-CBM1-01 and R2-CBM1-02

12" X 12" fake tile linoleum with mastic 6 Misc No R2-LN1-01 and R2-LN1-02

White caulking in bathroom and kitchen below inside windows 7 Misc No R2-MA1-01 through R2-MA1-03

Massive, gray silicone-like caulking below window 8 Misc No R2-MA2-01 and R2-MA2-02

Massive, white silicone-like caulking around window frames 9 Misc No R2-MA3-01 and R2-MA3-02

Black caulking on exterior edge of the garage door 10 Misc No R2-MA4-01 and R2-MA4-02

Rough sponge texture on walls 1 Surf Yes R3-DWT1-01, R3-DWT1-01, R3-DWT1-03

Drywall under rough sponge texture 2 Misc Yes R3-DWC1-01 , R3-DWC1-01, R3-DWC1-03

Orange peel texture, off-white 3 Surf No R3-DWT2-01 through R3-DWT2-03

Residence #3

Residence #2

Asbestos Containing (Yes or No)

Sample numbers

TABLE 2

HOMOGENEOUS MATERIALS

Mesa Verde National Park, Chapin Mesa Ensolum Project #07B7174001

Thin (~1/4") drywall, gray to off-white 4 Misc No R3-DWC2-01 through R3-DWC2-03

Massive, white, silicone-like caulking 5 Misc No R3-MA1-01 and R3-MA1-02

Brown, pliable caulking at base of door trim 6 Misc No R3-MA2-01 and R3-MA2-02

White crumbly window glazing 7 Misc No R3-MA3-01 and R3-MA3-02

Same plaster as in Residence 2 8 Misc No R3-MP1-01

Off-white/gray, orange-peel/sponge texture over drywall/plaster 1 Surf No R4-DWT1-01 through R4-DWT1-05

Off-white/gray/brown plaster or drywall 2 Misc Yes R4-DWC1-01 and R4-DWC1-02

White, silicone-like caulking 3 Misc No R4-MA1-01 through R4-MA1-03

Yellow, sticky mastic under 4" cove base 4 Misc No R4-CBM1-01 and R4-CBM1-02

White, crumbly window glazing same as other residences 5 Misc No R4-WG1-01

Buff colored, stone texture sheet linoleum 6 Misc No R4-LN1-01 and R4-LN1-02

Fake marble pattern, brown-white sheet linoleum with yellow mastic under carpet 7 Misc Yes R4-LN2-01, R4-LN2-02, R4-LN2-03

12"x12" fake tile pattern linoleum sheet flooring 8 Misc No R4-LN3-01 and R4-LN3-02

2" diameter yellow TSI 9 TSI No R4-TSI1-01 and R4-TSI1-02

Smooth texture over drywall 1 Surf Yes R5-DWT1-01, R5-DWT1-02, R5-DWT1-03

Drywall under smooth texture 2 Misc Yes R5-DWC1-01, R5-DWC1-01, R5-DWC1-03

Sponge texture 3 Surf Yes R5-DWT2-01, R5-DWT2-02, R5-DWT2-03

Drywall under sponge texture 4 Misc No R5-DWC2-01 through R5-DWC2-03

Smooth texture or layer of paint over plaster 5 Surf Yes R5-DWT3-01, R5-DWT3-02, R5-DWT3-03, R5-

DWT3-04

Residence #4

Residence #5

Asbestos Containing (Yes or No)

Sample numbers

TABLE 2

HOMOGENEOUS MATERIALS

Mesa Verde National Park, Chapin Mesa Ensolum Project #07B7174001

Tan, crumbly plaster over chicken wire 6 Misc Yes R5-PL1-01, R5-PL1-02, R5-PL1-03

Gray cementaceous material in flue 7 Misc Yes R5-FP1-01 and R5-FP1-02

Yellow foam TSI around copper pipe 8 TSI No R5-TSI1-01 and R5-TSI1-02

White, crumbly window glazing same as other residences 9 Misc Yes R5-WG1-01

Small popcorn drywall texture 1 Surf Yes R6-DWT1-01 , R6-DWT1-02, R6-DWT1-03

White drywall with brown paper under popcorn ceiling texture 2 Misc No R6-DWC1-01 through R6-DWC1-03

Smooth-sponge texture over plaster 3 Surf No R6-DWT2-01 through R6-DWT2-03

Gray cement-like plaster 4 Misc No R6-PL1-01 through R6-PL1-03

Gray vapor barrier/paper backing to plaster 5 Misc No R6-PB1-01 and R6-PB1-02

Tan fire brick in wood stove 6 Misc No R6-FB1-01 and R6-FB1-02

Black, charcoal coated fibrous paper, cream colored 7 Misc Yes R6-FP1-01 and R6-FP1-02

White, chalky insulation/fireproofing 8 Misc No R6-SI1-01 and R6-SI1-02

White-yellow insulation 9 Misc No R6-SI2-01 and R6-SI2-02

White, crumbly window glazing 10 Misc No R6-WG1-01 and R6-WG1-02

Brown caulking around exterior windows 11 Misc No R6-MA1-01 through R6-MA1-03

Black, degraded tar-like sealant with tar paper 12 Misc No R6-MA2-01 and R6-MA2-02

Gray, hard, degraded caulk 13 Misc Yes R6-MA3-01 and R6-MA3-02

Residence #6

Asbestos Containing (Yes or No)

Sample numbers

TABLE 2

HOMOGENEOUS MATERIALS

Mesa Verde National Park, Chapin Mesa Ensolum Project #07B7174001

Fake stone linoleum, cream colored with cream colored mastic 1 Misc No R7-LN1-01 through R7-LN1-03

Smooth texture over plaster 2 Surf Yes R7-DWT1-01, R7-DWT1-02 , R7-DWT1-03, R7-

DWT1-04 , R7-DWT1-05

Plaster beneath smooth texture 3 Misc No R7-PL1-01 through R7-PL1-03

Plaster on bedroom ceilings 4 Misc No R7-PL2-01 through R7-PL2-03

4" cove base and mastic 5 Misc No R7-CBM1-01 and R7-CBM1-02

Orange peel/sponge texture in bathroom 6 Surf No R7-DWT2-01 through R7-DWT2-03

Drywall under orange peel/sponge texture 7 Misc No R7-DWC1-01 and R7-DWC1-02

White caulking in bathroom and kitchen 8 Misc No R7-MA1-01 and R7-MA1-02

Tan cove base w/ yellow mastic 1 Misc No R8-CBM1-01 and R8-CBM1-02

Buff colored, 12"x12" fake tile pattern linoleum 2 Misc No R8-LN1-01 and R8-LN1-02

White sponge texture 3 Surf No R8-DWT1-01 through R8-DWT1-03 off-white drywall under sponge texture 4 Misc No R8-DWC1-01 and R8-DWC1-02

Sink undercoating 5 Misc No R8-SC1-01 and R8-SC1-02

White caulking 6 Misc No R8-MA1-01 through R8-MA1-03

Gray cementaceous plaster 7 Misc No R8-PL1-01 and R8-PL1-02

Crumbly, white window glazing 8 Misc No R8-WG1-01

Notes:

Bold - Contains >1% asbestos (ACM) Italicize - Contains ≤1% asbestos HA - homogenous area

MISC - Miscellaneous

Surf. - Surfacing Material

TSI - thermal system insulation

Residence #8

Residence #7

Identified Materials Material Location (by building) Estimated Quantity Potential Hazardous Material

Museum 20

Residence 1 2

Drinking Fountains Museum 2 Chlorofluorocarbons, Ozone depleting compounds

Electrical Transformer Museum 1 PCB's

Exit Signs Museum 3 Radioactive Materials

Residence 1 1

Residence 2 1

Residence 3 1

Residence 4 1

Residence 5 1

Residence 7 1

Residence 8 1

Residence 1 1

Residence 2 1

Residence 3 1

Residence 4 1

Residence 5 2

Residence 7 1

Museum 48 Bulbs

Residence 4 6 Bulbs

Residence 6 4 Bulbs

Residence 7 4 Bulbs

Residence 8 2 Bulbs

Air conditioning units Chlorofluorocarbons, Ozone depleting compounds

TABLE 3

REGULATED BUILDING MATERIALS INVENTORY

Site: Chapin Mesa Residences and Museum Mesa Verde National Park, Colorado

Ensolum Project #07B7174001

PCB's, DEHP's PCB Fluorescent Light Bulbs

Furnace PCB's, glycol

Hot Water Heaters PCB's, glycol

Ensolum 1 of 3

TABLE 3

REGULATED BUILDING MATERIALS INVENTORY

Site: Chapin Mesa Residences and Museum Mesa Verde National Park, Colorado

Ensolum Project #07B7174001

Residence 1 15

Residence 2 8

Residence 3 5

Residence 4 10

Residence 7 8

Museum 2

Residence 1 1

Residence 2 1

Residence 3 1

Residence 4 1

Residence 7 1

Residence 8 2

Museum 20

Residence 1 2

Residence 2 1

Residence 3 1

Residence 4 1

Residence 7 1

Residence 8 2

Refrigerator/ Ice Maker Chlorofluorocarbons, Ozone depleting compounds

Radiant Heaters PCB's

Smoke Detectors Radioactive Materials

Ensolum 2 of 3

TABLE 3

REGULATED BUILDING MATERIALS INVENTORY

Site: Chapin Mesa Residences and Museum Mesa Verde National Park, Colorado

Ensolum Project #07B7174001

Museum 14

Residence 1 2

Residence 2 1

Residence 3 1

Residence 4 1

Residence 5 1

Residence 6 1

Residence 7 2

Residence 8 1

Notes:

DEHP - Di(2 ethylexyl)phthalate PCB - polychlorinated bisphenyl

Thermostats Mercury

Ensolum 3 of 3

APPENDIX A

Firm Certifications

Issued:

Expires:

STAT

March 29, 2023

O COLO

March 29, 2024 l876

ASBESTOS CONSULTING FIRM

Colorado Department of Public Health and Environment

This certifies that has met the registration requirements of 25-7-507, CR.S. and the Air Quality Control Commission Regulation No. 8, Part B, and is hereby authorized to perform asbestos consulting activities as required under Regulation No 8, Part B, in the state ofColorado.

Ensolum, LLC

Registration No.: ACF-27624

Authonzed APCD Representative

SEAL

WAMAMMAMMM MMIMIY0M

NE

Colorado Department of Public Health and Environment

ASBESTOS

CERTIFICATION*

This certifies that

Reece Hanson

Certification No.: 27130 has met the requirements of 25-7-507, C.R.S. and Air Quality Control

Commission Regulation No. 8, Part B, and is hereby certified by the state of Colorado in the following discipline:

Building Inspector*

Issued: January 13, 2023

Expires: January 13, 2024

* This certificate is valid only with the possession ofsa current Division-approved training course certification in the discipline speeified above N

Authorized APqD Representative

OF C LOR TE O

Colorado Department of Public Health and Environment

ASBESTOS

CERTIFICATION*

This certifies that

Zachary Myers Certification No.: 27978 has met the requirements of 25-7-507, C.R.S. and Air Quality Control Commission Regulation No. 8, Part B, and is hereby certified by the state of Colorado in the following discipline:

Building Inspector*

Issued: June 10, 2022

Expires: June 17, 2023

This certificate is valid only with the possession of a Current Division-approved training course certification in the discipline specified above. Authorized APCD Representative

D)}

APPENDIX B

ACM and OSHA Materials Summary

LEGEND

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

ACM locations

Walls with > 1% asbestos

Basement

Cert # 27978/27130

Mesa Verde Residence # 1

North

OSHA regulated materials

Walls with ≤ 1% asbestos

Ceilings with ≤ 1% asbestos

Cert # 27978/27130

Mesa Verde Residence # 2

North

Walls with ≤ 1% asbestos

Ceilings with ≤ 1% asbestos

OSHA regulated materials

Cert # 27978/27130

Mesa Verde Residence #3

North

Walls with ≤ 1% asbestos

Cert # 27978/27130

Mesa Verde Residence #4

North

Linoleum flooring and mastic with >1% asbestos

Ceilings with ≤ 1% asbestos

ACM locations and

Cert # 27978/27130

Mesa Verde Residence #5

North

Walls with ≤ 1% asbestos

Ceilings with ≤ 1% asbestos

Cert # 27978/27130

Mesa Verde Residence #6

North

Walls with ≤ 1% asbestos

Ceilings with ≤ 1% asbestos

Other materials with > 1% asbestos

- Beige felt inside old stove box

- Black caulking on exterior

ACM locations and

Cert # 27978/27130

Mesa Verde Residence #7

North

Walls with ≤ 1% asbestos

Ceilings with ≤ 1% asbestos

Cert # 27978/27130

Mesa Verde Residence #8

North

Walls with ≤ 1% asbestos

Other materials with ≤ 1% asbestos

- Sink undercoating

APPENDIX C

Homogenous Sampling Area Diagrams

HA # 1

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

Walls with DWT1

Random sampling diagram #2

DWT1- White, smooth to light sponge drywall texture

~ 1,335 SF

DWT1 – 05

DWT1 – 01

DWT1 – 02DWT1 – 04

DWT1 – 03 Basement

HA # 2

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

Walls with DWC1

Random sampling diagram #2

DWC1- Off-white drywall under white, smooth to light sponge texture

~ 1,335 SF

Ceilings with DWC1

DWC1 – 01

DWC1 – 02

DWC1 – 03 Basement

HA # 3

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

Walls with DWT2

DWT2- Sponge texture under white or yellow paint

~ 640 SF

DWT2 – 01

DWT2 – 02

DWT2 – 03

HA # 4

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

Walls with DWC2

DWC2- Grayish drywall under sponge texture

~ 640 SF

DWC2 – 01

DWC2 – 02

DWC2 – 03

HA # 5

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

Walls with BS1

BS1- White concrete sealant

~ 4,150 SF

BS1 – 01

BS1 – 03

BS1 – 02

BS1 – 04

BS1 – 05

HA # 6

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

Walls with PL1

Random sampling diagram #3

PL1- Gray, granular, cementaceous plaster

~ 14,360 SF

Ceilings with PL1

Main Floor

PL1 – 01

PL1 – 02

PL1 – 03

HA # 7

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

FM1- Tan, brittle floor coating/mastic

~ 2,900 SF

Areas with FM1

Main Floor

FM1 – 01 FM1 – 02

FM1 – 03

HA # 8

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

STM1- Tan, sticky mastic with brown vinyl/rubber stair tread

~ 12 SF

Areas with STM1

Main Floor

STM1 – 01+02

HA # 9

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

CM1- Green sticky carpet mastic underneath 24"x24" tan/brown/gray carpet squares

~ 1,450 SF

Areas with CM1

Main Floor

Basement

CM1 – 02

CM1 – 01

CM1 – 03

HA # 10

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

CM2- Tan, sticky, slightly brittle carpet mastic underneath 24"x24" gray/black diamond grid carpet squares

~ 375 SF

Areas with CM2

Main Floor

CM2 – 02

CM2 – 01

HA # 11

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

CM3- Tan, sticky, slightly brittle carpet mastic underneath 24"x24" black square grid pattern carpet squares, 0.5" squares

~ 70 SF

Main Floor

Areas with CM3

CM3 – 02

CM3 – 01

HA # 12

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

CM4- Tan, sticky, slightly brittle carpet mastic underneath black, gray, blue carpet roll in bookstore

~ 560 SF

Main Floor

Areas with CM4

CM4 – 01+02

HA # 13

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

CBM1- Brown 4” cove base with gray mastic

~ 135 SF

Main Floor

Basement

Walls with CBM1

CBM1-01

CBM1-02

CBM1-03

HA # 14

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Museum

North

Sample location

CT1- 2’x4’ white ceiling tile

~ 200 SF

CT1 – 01 Basement

Ceilings with CT1

Random sampling diagram #3

CT1 – 02

CT1 – 03

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

PL1- Gray, cementaceous plaster

~ 800 SF

Ceilings with PL1

PL1 – 01

PL1 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

LN1- Tan linoleum sheet flooring

~ 25 SF

Floors with LN1

LN1-01+02

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

Walls with DWT1

Random sampling diagram #3

DWT1- Smooth/ sponge texture wall and ceiling surfacing

~ 640 SF

Ceilings with DWT1

DWT1-02

DWT1-03

DWT1-01

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

Walls with DWC1

DWC1- White drywall under smooth texture

~ 640 SF

Ceilings with DWC1

DWC1-02

DWC1-03

DWC1-01

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

Areas with MA1

MA1- White silicone-like caulking

~ 1 SF

MA1 – 02

MA1 – 01

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

MA2- Very thin white caulk

<1 SF

Areas with MA2

MA2 – 01

MA2 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

MA3- Off-white, firm, crumbly caulking

<1 SF

Areas with MA3

MA3 – 01+02

Zach Myers/Reece Hanson

Cert # 27978/27130

Mesa Verde Residence #1

North

Sample location

MA4- Off-white, thick caulking

<1 SF

Areas with MA4

MA4 – 01+02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with MP1

Random sampling diagram #1

MP1- Rough textured white plaster on inside of masonry walls

~ 1,265 SF

Mesa Verde Residence # 2

North

MP1 – 01

MP1 – 02

MP1 – 03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Walls with DWT1

Random sampling diagram #3

DWT1- Smooth texture over drywall

~ 640 SF

Mesa Verde Residence #2

North

Ceilings with DWT1

DWT1 – 01

DWT1 – 03

DWT1 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Walls with DWC1

Random sampling diagram #3

DWC1- White drywall under smooth texture

~ 640 SF

Mesa Verde Residence #2

North

Ceilings with DWC1

DWC1 – 01

DWC1 – 03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Walls with DWT2

No random sampling diagram used

DWT2- Rough sponge texture over plaster

~ 110 SF

Mesa Verde Residence #2

North

DWT2 – 01

DWT2 – 02

DWT2 – 03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with CBM1

No random sampling diagram used

CBM1- Tan cove base with mastic

~ 15 SF

Mesa Verde Residence #2

North

CBM1 – 01

CBM1 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with LN1

Limited access, no random sampling diagram used to avoid unnecessary damage

LN1- 12”x12” fake tile linoleum with mastic

~ 305 SF

Mesa Verde Residence #2

North

LN1 – 01

LN1 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with MA1

No random sampling diagram used

MA1- White caulking in bathroom and kitchen, below inside windows

~ 2 SF

Mesa Verde Residence #2

North

MA1 – 01

MA1 – 03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with MA2

No random sampling diagram used

MA2- Massive, gray silicone-like caulking below window

< 1 SF

Mesa Verde Residence #2

North

MA2 – 01

MA2 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with MA3

No random sampling diagram used

MA3- Massive, white silicone-like caulking around window frame

< 1 SF

Mesa Verde Residence #2

North

MA3 – 01

MA3 – 02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with MA4

No random sampling diagram used

MA4- Black caulking on exterior edges of garage door

< 1 SF

Mesa Verde Residence #2

North

MA4 – 01+02

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with DWT1

Random sampling diagram #5

DWT1- Rough sponge texture on walls

~ 955 SF

Mesa Verde Residence #3

North

DWT1–01

DWT1–02

DWT1–03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Areas with DWC1

Random sampling diagram #5

DWC1- Drywall under rough sponge texture on walls

~ 955 SF

Mesa Verde Residence #3

North

DWC1–01

DWC1–02

DWC1–03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Ceilings with DWT2

Random sampling diagram #6

DWT2- Orange peel texture, off white, on ceilings

~ 450 SF

Mesa Verde Residence #3

North

DWT2–01

DWT2–02

DWT2–03

Zach Myers/Reece Hanson

Cert # 27978/27130

Sample location

Ceilings with DWC2

Random sampling diagram #6

DWC2- Thin (~1/4”) drywall, gray to off-white under orange peel texture

~ 450 SF

Mesa Verde Residence #3

North

DWC2–01

DWC2–02

DWC2–03

Zach Myers/Reece Hanson

Cert # 27978/27130