R-7213 MSC Asbestos Lead Mold Assessment.pdf

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R-7213 Multi-Service Center Energy Efficiency Upgrade Project 3005010145
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PW-24-451
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California

About this file

This document is an environmental survey report prepared by Ninyo & Moore for the City of Long Beach Department of Public Works regarding the Multi Service Building located at 1301 West 12th Street in Long Beach, California. The survey was conducted in support of a planned roof and heating, ventilation, and air-conditioning (HVAC) replacement project at the approximately 15,000 square-foot single-story building. The limited asbestos, lead, and mold survey was performed on December 13, 2022, with the report submitted on January 11, 2023. The scope of work included collection and analysis of 35 bulk asbestos samples, 25 X-Ray Fluorescence (XRF) lead readings, moisture measurements, and photographic documentation of water-damaged areas. The survey was limited to accessible aboveground structures, roof systems, and interior ceilings and walls affected by water intrusion.

The analytical results indicate that asbestos-containing materials and lead-based paint were not detected in the planned renovation areas. However, the survey identified visible water ponding on the roof with vegetation growth and water staining or damage affecting approximately 59 square feet of interior ceiling tiles and drywall in the east restroom, east electrical room, and various interior areas. The report recommends selective removal of affected drywall in the east electrical room and east restroom under negative pressure containment by a professional water-restoration contractor, with subsequent visual inspection and airborne mold spore sampling to confirm acceptable indoor fungal ecology prior to area reoccupancy. Quantities of materials are presented as approximate estimates intended as rough guides for contractor bidding purposes.

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Asbestos, Lead, and Mold Survey Multi Service Building

Roof and HVAC Project

1301 West 12th Street Long Beach, California 90813

Prepared for:

City of Long Beach – Department of Public Works 411 West Ocean Boulevard, 5th Floor | Long Beach, California 90802

Submitted to: PSOMAS

100 Corporate Pointe | Culver City, California 90806

January 11, 2023 | Project No. 210042018

April 28, 2021 | Project No. 209616016

Geotechnical | Environmental | Construction Inspection & Testing | Forensic Engineering & Expert Witness

Geophysics | Engineering Geology | Laboratory Testing | Industrial Hygiene | Occupational Safety | Air Quality | GIS

475 Goddard, Suite 200 | Irvine, California 92618 | p. 949.753.7070 | www.ninyoandmoore.com

Asbestos, Lead, and Mold Survey Multi Service Building

Roof and HVAC Project

1301 West 12th Street Long Beach, California 90813

Prepared for: City of Long Beach – Department of Public Works

411 West Ocean Boulevard, 5th Floor | Long Beach, California 90802

Submitted to: PSOMAS

Ms. Kimvy “Vy” Nguyen Project Manager 100 Corporate Pointe | Culver City, California 90806

January 11, 2023 | Project No. 210042018

David M. Kelly Project Environmental Scientist Certified Site Surveillance Technician No. 17-6144 Lead Sampling Technician No. 2285

Nicholas Marinello Project Environmental Scientist Certified Asbestos Consultant No. 17-6117 Lead Inspector/Risk Assessor No. 3568

Stephen J. Waide, CIH, CSP Principal Environmental Scientist

DMK/NSM/SJW/scs

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 i

CONTENTS

1 INTRODUCTION 1

2 PURPOSE AND SCOPE OF SERVICES 1

3 SITE BUILDING DESCRIPTION 2

4 FIELD LIMITATIONS 2

5 LIMITED ASBESTOS SURVEY AND LABORATORY

ANALYSIS 2

5.1 Asbestos Inspection, Sampling, and Quantification 2

5.2 Asbestos Laboratory Analysis Procedures 4

6 LIMITED LEAD-CONTAINING SURFACES SURVEY 5

6.1 Lead Inspection 5

6.2 Lead Readings 5

7 MOISTURE AND MICROBIAL EVALUATION 6

7.1 Moisture Survey 6

8 SURVEY RESULTS 6

8.1 Limited Asbestos Survey Summary 6

8.2 Limited Lead Survey Summary 7

8.3 Moisture and Microbial Evaluation Summary 8

8.3.1 Visual Assessment 8

8.3.2 Moisture Survey 8

9 RECOMMENDATIONS 8

9.1 Asbestos 9

9.2 Lead 9

9.3 Moisture and Mold 9

10 LIMITATIONS 10

TABLES

1 – Non-Asbestos Containing Materials Sampled

2 – Visual Moisture and Microbial Evaluation Summary

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 ii

FIGURE

1 – Site Location

APPENDICES

A – Consultant Certificates

B – California Department of Public Health Form 8552

C – Analytical Results and Chain-of-Custody Records

D – Photographs

E – Field Drawings

F – XRF Readings Summary

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 1

1 INTRODUCTION

In accordance with the City of Long Beach Department of Public Works authorization, Ninyo &

Moore has performed a limited asbestos and lead survey, as well as a moisture and microbial evaluation, in support of the planned roof and heating, ventilation, and air-conditioning (HVAC) replacement project at the Multi Service Building, located at 1301 West 12th Street in Long Beach, California (site; Figure 1). This report has been prepared in accordance with generally accepted environmental science and engineering practices. This report is based on conditions at the site at the time of the sampling activities and provides documentation of our findings and recommendations.

2 PURPOSE AND SCOPE OF SERVICES

The objective of the limited survey is to provide information about the current conditions within the site structure regarding the potential presence of asbestos containing materials (ACMs), lead containing surfaces (LCSs), and water intrusion and/or microbial growth that may be encountered or disturbed during upcoming renovation activities. For the purposes of this assessment, LCSs refers to both lead-based paint (LBP), as defined by the United States Department of Housing and

Urban Development (HUD) and the California Department of Public Health (CDPH), and other potential lead-containing materials such as ceramic tiles and porcelain plumbing fixtures.

The scope of services performed for the study is identified below:

• Performed a visual reconnaissance of the structure to evaluate the possible presence of ACMs and LCSs.

• Collected 35 bulk samples of suspect ACMs and submitted these samples to an independent laboratory for analysis of asbestos content. Samples were analyzed in accordance with the United States Environmental Protection Agency (EPA) recommended method of Polarized Light Microscopy (PLM), in accordance with EPA Test Method 600/R-93/116, July 93.

• Assessed suspect LCSs by collecting 25 X-Ray Fluorescence (XRF) readings (including calibration checks).

• Evaluated building materials for moisture content with a Delmhorst BD-2100 Moisture Meter and photo-documented visible water staining/damage and microbial growth areas.

• Prepared field drawings showing suspect ACMs sample locations, positive XRF reading locations, and areas with observed water staining/damage and/or microbial growth.

• Prepared this limited survey report, which documents our methodology for the field surveys and associated analysis, as well as the evaluated materials and their locations. This report includes field drawings, general building descriptions, photographic documentation, and laboratory analytical results, as well as our findings, conclusions and recommendations.

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 2

3 SITE BUILDING DESCRIPTION

The Multi Service Building is a single-story structure that comprises two attached buildings with a total area of approximately 15,000 square feet (SF). The structure includes a common area, a conference room, showers, a break room, offices, storage rooms, electrical rooms, a janitorial room/closet, and restrooms. The interior walls are finished with drywall. The ceilings are finished with either laid-in ceiling tiles or drywall. The floors are predominantly finished with carpet, except for ceramic tile in the restrooms. The exterior walls are finished with stucco and brick and mortar.

The roof system is finished with a mineral surfaced roofing (asphalt rolled roofing).

4 FIELD LIMITATIONS

Survey activities were limited to the aboveground structures of the subject site within our scope.

Underground utilities, such as suspect cementitious water lines or suspect insulated/coated gas or electrical lines, were not assessed during survey activities.

The field survey and sampling activities were limited to the roof and the interior ceilings and walls that were affected by water intrusion. Since non-destructive sampling techniques were used, there is a possibility that additional suspect materials and/or surfaces may be encountered in inaccessible areas (e.g., interstitial wall and ceiling spaces and canopy soffits) during building renovation and/or demolition activities. For instance, untested thermal system insulation may be present within wall and ceiling cavities and/or behind plumbing and heating fixtures (e.g., sinks, boilers, and radiators). Suspect materials and/or surfaces encountered during building renovation and/or demolition activities that have not been assessed either may be assumed to be asbestos-and/or lead-containing and handled accordingly, or may be sampled and analyzed to assess whether they are asbestos- and/or lead-containing.

5 LIMITED ASBESTOS SURVEY AND LABORATORY ANALYSIS

The limited ACMs survey was performed on December 13, 2022, by Mr. David Kelly, a California

Department of Occupational Safety and Health (DOSH) Certified Site Surveillance Technician

(#17-6144). Work was performed under the supervision of Mr. Nicholas Marinello, a DOSH

Certified Asbestos Consultant (#17-6117). Consultant certificates are presented in Appendix A.

5.1 Asbestos Inspection, Sampling, and Quantification

The limited survey inspection and sampling procedures were performed in accordance with the guidelines published by the EPA in Title 40 of the Code of Federal Regulations (CFR) Part 763, Subpart E, October 30, 1987 (Asbestos Hazards Emergency Response Act [AHERA]); the EPA guidance document “Asbestos in Buildings: Simplified Sampling Scheme for Friable Surfacing

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 3

Materials” (EPA 560/5-85-030a, October 1985); the National Emission Standards for Hazardous

Air Pollutants (NESHAP; 40 CFR Part 61, Subpart M); and the South Coast Air Quality

Management District (SCAQMD) Rule 1403.

The survey activities consisted of three parts, including visual inspection, sampling, and quantification of the building materials.

5.1.1 Visual Evaluation

Initial observations were made throughout the structure to evaluate the presence and condition of accessible suspect materials within our scope. Materials that were similar in general appearance were grouped into homogeneous sampling areas (areas in which the materials are uniform in color, texture, construction, or application date), as recommended by the EPA. Each homogeneous area was observed for material type, location, condition, and friability.

The definition of an asbestos containing, friable material is one that contains more than one percent asbestos that, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure. The EPA’s NESHAP regulation lists different material categories for ACMs. These categories are used when demolition or renovation projects are being conducted. Each identified suspect homogeneous material was placed in one of the following EPA classifications:

• Category I Non-friable - NESHAP defines a Category I non-friable ACM as packing, gaskets, resilient floor covering (except sheet flooring products which are considered friable), and asphalt roofing products which contain more than one percent asbestos.

• Category II Non-friable - NESHAP defines a Category II non-friable ACM as any material, except for Category I non-friable ACM, which contains more than one percent asbestos and cannot be reduced to a powder by hand pressure when dry.

• Regulated Asbestos Containing Material - is (a) friable asbestos material; (b) Category I nonfriable ACM that has become friable; (c) Category I nonfriable ACM that will be or has been subjected to sanding, grinding, cutting, or abrading; or (d) Category II nonfriable 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 in the course of demolition or renovation operations.

In accordance with the EPA and AHERA, suspect materials were placed in one of three categories:

• Surfacing Materials - materials generally applied via sprayed or trowel methods,

• Thermal Systems Insulation (TSI) - materials generally applied to various mechanical systems, or

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 4

• Miscellaneous Materials - any materials that do not fit in the Surfacing or TSI classifications.

If asbestos is identified in a sample from a homogeneous area, the entire homogeneous area is considered to contain asbestos.

Representative samples were collected from each homogeneous area within the survey area, except areas that were inaccessible, or areas of assumed ACM, within the limitations of the survey activities.

5.1.2 Sampling Procedures

Following an initial walkthrough, the inspector collected samples of accessible materials identified as suspect ACM. EPA, AHERA, NESHAP, and SCAQMD guidelines were used to determine the sampling protocol. Sampling locations were chosen to be representative of the homogeneous material and were either collected from damaged areas or from areas that were inconspicuous. Samples of surfacing material were collected in general accordance with the EPA sampling protocol outlined in EPA 560 5-85 030a, October 1985 (3-5-7 Rule).

Samples of miscellaneous materials were collected as randomly as possible, while attempting to sample already damaged areas. Generally, three samples of each homogeneous material were collected of miscellaneous materials and TSI, if present.

5.1.3 Quantification

Quantities of accessible and/or exposed building materials that were suspected of containing asbestos were estimated by taking approximate measurements in the field. Quantities are presented in square feet or linear feet and are intended to be used as a rough guide for contractor estimates when bidding on abatement activities.

5.2 Asbestos Laboratory Analysis Procedures

Analysis was performed at EMLab P&K (EMLab), located at 4460 Brookfield Corporate Drive, Suite A in Chantilly, Virginia. EMLab is a National Volunteer Laboratory Accreditation Program

(NVLAP) accredited laboratory (NVLAP #600331-0). A chain-of-custody, documenting the possession of the samples from the time they were collected until analyzed and stored, was submitted with the bulk samples. The original chain-of-custody accompanied the materials at all times. Custody documentation began at the time samples were collected and each transferor retained a copy of the chain-of-custody record.

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 5

Analysis was performed by using bulk samples for visual observation and slide preparation(s) for microscopic examination and identification. The samples were mounted on slides and then analyzed for asbestos (chrysotile, amosite, crocidolite, anthophyllite, and actinolite/tremolite), fibrous non-asbestos constituents (mineral wool, paper, etc.), and non-fibrous constituents.

Refractive indices, morphology, color, pleochroism, birefringence, extinction characteristics, and signs of elongation were used to identify asbestos fibers. The same characteristics were used to identify the non-asbestos constituents.

The microscopist visually estimated relative amounts of each constituent by determining the volume of each constituent in proportion to the total volume of the sample, using a stereoscope.

The bulk samples were analyzed by PLM with dispersion staining as described by the method for the determination of asbestos in bulk building materials, EPA/600/R-93/116, July 1993. This is a standard method of analysis in optical mineralogy and the currently accepted method for the determination of asbestos in bulk samples. A suspect material is immersed in a solution of known refractive index and subjected to illumination by polarized light. The characteristic color displays that result enable mineral identification.

6 LIMITED LEAD-CONTAINING SURFACES SURVEY

The limited LCSs survey was performed on December 13, 2022, by Mr. David Kelly, a CDPH

Lead-Related Construction (LRC) Sampling Technician (#2285). Work was performed under the supervision of Mr. Nicholas Marinello, a CDPH LRC Inspector/Assessor (#3568). Consultant certificates are presented in Appendix A.

6.1 Lead Inspection

The limited survey was conducted using a portable SciAps X-550 XRF analyzer in accordance with accepted environmental science and engineering practices. The protocol used for selecting components and sampling locations was that contained in the federal HUD “Guidelines for the

Evaluation and Control of Lead-Based Paint Hazards in Housing” (Chapter 7 “Lead-Based Paint

Inspection”), except the inspection was limited to accessible materials and, once a pattern was recognized for the component results, fewer readings for each component were collected.

6.2 Lead Readings

The XRF analyzer used for the testing is a direct-reading instrument that determines the concentration of lead in painted surfaces by subjecting the surfaces to energy from an X-Ray tube. When the instrument is placed against a surface, the energy from the XRF causes the surface to emit X-Rays that are indicative of the chemical make-up of the surface coating(s), which

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 6 the XRF then analyzes. The instrument was calibrated to the manufacturer’s specifications and the calibration was checked, at least every four hours and at the beginning and completion of each set of readings, against known lead sample standards produced by the National Institute of

Standards and Testing. The XRF instrument measures lead in units of milligrams per square centimeter (mg/cm2). A total of 25 XRF readings were collected (including calibration checks) over the course of the survey activities.

The CDPH requires that, after a lead evaluation is performed, a copy of CDPH form 8552 “Lead

Hazard Evaluation Report” should be submitted. Ninyo & Moore has faxed this form to the CDPH and a copy is included in Appendix B.

7 MOISTURE AND MICROBIAL EVALUATION

The moisture and microbial evaluation was performed on December 13, 2022, by Mr. Jeff Ramsey an industrial hygienist under the supervision of Mr. Stephen Waide, a Certified Industrial Hygienist.

The evaluation included a visual assessment, moisture measurements, and photographic documentation of water damaged areas and/or microbial growth. Consultant certificates are presented in Appendix A.

7.1 Moisture Survey

The moisture survey focused on acoustic laid-in ceiling tiles and drywall ceilings and walls where visible water staining/damage and/or microbial growth was observed. Moisture measurements were collected from target areas using a Delmhorst BD-2100 Moisture Meter. The moisture meter operates by measuring the electrical conductivity between two pins that are inserted into the sample substrate. Materials containing moisture exhibit increased conductivity compared to a dry sample of the same material. The meter provides a digital readout in real-time, reported in terms of percent moisture content. The microbial evaluation was limited to visual observations;

confirmation sampling was not performed.

8 SURVEY RESULTS

The following sections describe the limited survey results.

8.1 Limited Asbestos Survey Summary

A total of 35 samples of suspect ACMs were collected and transferred to EMLab for analysis. The lower limit of reliable detection for asbestos using the PLM method is approximately 1 percent by volume. In the state of California, DOSH regulations define asbestos containing construction materials (ACCMs) as materials that contain asbestos content greater than one tenth of 1 percent

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 7

(>0.1 percent) that has been verified by PLM point-count analysis. Materials in which no asbestos was detected are defined in the laboratory report as “None detected” (represented with ND).

Materials containing asbestos, but in amounts less than 1 percent, are defined as containing

“trace” amounts and, for the purpose of this report, are assumed to be ACCM. Inaccessible suspect ACMs are noted to be assumed asbestos containing, if present/observed.

Based on observations and the analytical results of bulk samples collected during the limited survey, ACMs were not detected within the planned renovation areas of the structure. The building materials that were sampled and found to be non-asbestos containing are summarized in Table 1.

A copy of the laboratory analytical report and chain-of-custody record is presented in Appendix C.

General photographic documentation of the structure is presented in Appendix D. The suspect asbestos sample locations are presented within the field drawings provided in Appendix E.

Table 1 – Non-Asbestos Containing Materials Sampled

Sample No.

from COC

HA No. Sample Material Descriptions Material Location

01 – 03 1 Roof core (asphalt rolled roof) West roof 04 – 06 2 Gray/white penetration mastic West roof vents, vent pipes, and HVAC islands 07 – 09 3 Black penetration mastic West roof skylights 10 – 12 4 HVAC ducting sealant Roof and interior HVAC ducting 13 – 15 5 Roof core (asphalt rolled roof) East roof 16 – 18 6 Black penetration mastic East roof vent pipes, HVAC islands, and wind breaker walls 19 – 21 7 Gray/black penetration mastic with fibrous material East roof vents 22 – 24 8 White caulking West and east roof flashing 25 – 27 9 Mortar Roof parapet walls 28 – 30 10 Laid-in ceiling tiles Throughout interior ceiling 31 – 35 11 Drywall with joint compound Throughout interior walls and ceilings

Notes:

COC – chain of custody

HA – homogeneous area

HVAC – heating, ventilation, and air-conditioning

No. – number

8.2 Limited Lead Survey Summary

Federal efforts to regulate LBP began with the LBP Poison Prevention Act in 1971. In 1973, the

Consumer Product Safety Commission (CPSC) defined LBP as paint having lead content equal to or greater than 0.5 percent by weight in a dry film of newly applied paint. In 1978, the CPSC lowered the allowable lead levels in new paint to 0.06 percent, which is considered lead containing paint. HUD developed guidelines relating to HUD facilities that specified lead content of 0.5 percent (1.0 mg/cm2) as an action level in determining the need for corrective action. However, a more stringent level was established by the Los Angeles County Department of Health Services, which defines “dangerous level of lead-bearing substances” as paint or other surface coating with lead in excess of 0.7 mg/cm2 (Los Angeles County Code, Title 11, Chapter 11.28, Section 11.28.010 C). Federal and State DOSH do not define an amount of lead in paint in their regulatory requirements; rather activities, or tasks, are the basis for when their regulations are in

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 8 effect. Both Federal and State standards use the term “trigger task” activities. In the work place, employers must make certain assumptions of the exposure levels and comply with regulations based on the level of disturbance rather than the level of lead.

A total of 25 XRF readings were collected from representative testing combinations (i.e., unique combination of room equivalent, building component, substrate, and color) within the planned renovation areas of the structure. LBP/LCSs were not detected within the planned renovation areas of the structure. A summary of all XRF readings are summarized in the table presented in

Appendix F.

8.3 Moisture and Microbial Evaluation Summary

8.3.1 Visual Assessment

During the field reconnaissance, interior ceilings within the site structure were observed to have been affected by water intrusion events. Indicators of water intrusion included staining and/or damage of ceiling tiles and drywall. Visible mold growth was not observed during our site visit. Representative photographs are presented in Appendix D.

8.3.2 Moisture Survey

Interior ceilings and walls with visible water staining/damage were generally dry when measured with a Delmhorst® BD-2100 moisture meter.

A summary of our visual evaluation for microbial growth/contamination or signs of moisture intrusion is presented in Table 2. Figures indicating the specific locations of areas of concern are presented on the field drawings in Appendix E.

Table 2 – Visual Moisture and Microbial Evaluation Summary

Area Surveyed Description Photograph No.

Roof Visible water ponding and vegetation growth. 2 – 5 East restroom Water staining/damage on ceiling drywall, approximately 5 SF. NA

Interior areas Water staining/damage on laid-in ceiling tiles throughout the interior areas

(see field drawing), approximately 50 SF.

6, 7, 9

East electrical room Water staining/damage on ceiling and wall drywall, approximately 4 SF. 8 Notes:

NA – not applicable No. – number SF – square feet

9 RECOMMENDATIONS

The following recommendations are provided in preparation of renovation of the structure:

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 9

9.1 Asbestos

In the unlikely event additional suspect asbestos containing building materials are found to be present during renovation activities, the material should be sampled for asbestos content by qualified personnel in order to determine the materials appropriate handling and disposal requirements.

9.2 Lead

In the unlikely event additional suspect lead containing building materials are found to be present during renovation activities, the material should be sampled for lead content by qualified personnel in order to determine the materials appropriate handling and disposal requirements.

9.3 Moisture and Mold

To identify the full extent of moisture intrusion and/or mold growth to be remediated, selective removal of the affected drywall from the ceiling and walls within the east electrical room and east restroom should occur. This should be performed by a professional water-restoration contractor under containment with negative pressure. If any microbial growth is encountered, it should be appropriately removed and the affected surfaces cleaned or removed. The process should be completed as follows:

• Remove and replace all water stained/damaged laid-in ceiling tiles.

• Remediation workers should set up a negative pressure enclosure of the east restroom and east electrical room. Negative air machines should be utilized within the containment.

• All critical barriers should be sealed with two layers of 6-millimeter polyethylene sheeting.

• Workers should don single-use, full body protective Tyvek suits with integral head and foot coverings, as well as half-face air purifying respirators equipped with high efficiency particulate air (HEPA) filters.

• Hand tools and scrapers should be utilized for the removal of affected materials.

• All building materials removed should be placed in transparent, leak-tight 6-millimeter polyethylene sheeting bags (goose-neck tied) and removed from the premises.

• Once removal of necessary building materials is complete, all remaining vertical and horizontal surfaces should be cleaned with vacuums equipped with HEPA filters.

• Air changes should continue for 48 hours after completion of work, including air scrubbing

• After completion of the recommended remediation tasks, visual inspection and sampling for airborne mold spores should also be performed by an industrial hygienist in order to confirm a normal indoor fungal ecology prior to releasing the area for unrestricted use. A Certified

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 10

Industrial Hygienist should evaluate the results of air sampling and assess if the premises are acceptable for re-occupancy

10 LIMITATIONS

Ninyo & Moore’s opinions and recommendations regarding environmental conditions, as presented in this report, are based on limited sampling and chemical analysis. Further assessment of potential adverse environmental impacts may be accomplished by a more comprehensive assessment. The samples collected and used for testing, and the observations made, are believed to be representative of the area(s) evaluated. However, if additional suspect

ACMs or LCSs are encountered during renovation activities, these materials should be sampled by qualified personnel, and analyzed for content prior to further disturbance. In addition, please note that quantities of ACMs, and LCSs are approximate. These numbers should be confirmed prior to removal or repair activities.

The environmental services described in this report have been conducted in general accordance with current regulatory guidelines and the standard-of-care exercised by environmental consultants performing similar work in the project area. No warranty, expressed or implied, is made regarding the professional opinions presented in this report. Variations in site conditions may exist and conditions not observed or described in this report may be encountered during subsequent activities.

This document is intended to be used only in its entirety. No portion of the document, by itself, is designed to completely represent any aspect of the project described herein. Ninyo & Moore should be contacted if the reader requires any additional information, or has questions regarding content, interpretations presented, or completeness of this document.

The environmental interpretations and opinions contained in this report are based on the results of laboratory tests and analyses intended to detect the presence and concentration of specific chemical or physical constituents in samples collected from the subject site. The testing and analyses have been conducted by an independent laboratory which is certified by the State of

California to conduct such tests. Ninyo & Moore has no involvement in, or control over, such testing and analysis. Ninyo & Moore, therefore, disclaims responsibility for any inaccuracy in such laboratory results.

Our conclusions, recommendations, and opinions are based on an analysis of the observed site conditions. It should be understood that the conditions of a site can change with time as a result of natural processes or the activities of humans at the subject site or nearby sites. In addition, Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023 11 changes to the applicable laws, regulations, codes, and standards of practice may occur due to government action or the broadening of knowledge. The findings of this report may, therefore, be invalidated over time, in part or in whole, by changes over which Ninyo & Moore has no control.

Ninyo & Moore | 1301 West 12th Street, Long Beach, California | 210042018 | January 11, 2023

FIGURE

SITE

Geotechnical & Environmental Sciences Consultants

1_

8_

SL

.d w g

1/

/2

G

K

SITE LOCATION

FIGURE 1

NOTE: DIMENSIONS, DIRECTIONS AND LOCATIONS ARE APPROXIMATE. I REFERENCE: USGS, 2022. 0

FEET

2,000 4,000

1301 WEST 12TH STREET

LONG BEACH, CALIFORNIA

210042018 I 1/23

N

APPENDIX A

Consultant Certificates

APPENDIX B

California Department of Public Health Form 8552

APPENDIX C

Analytical Results and Chain-of-Custody Records

Approved by:

Approved Signatory Virginia Jones

Report for:

David Kelly Ninyo & Moore - Irvine 475 Goddard Suite 200 Irvine, CA 92618

Regarding:

Eurofins EPK Built Environment Testing, LLC Project: 210042000Q; MSC Building, 1301 W. 12th Street

EML ID: 3109331

All samples were received in acceptable condition unless noted in the Report Comments portion in the body of the report. The results relate only to the samples as received and tested. The results include an inherent uncertainty of measurement associated with estimating percentages by polarized light microscopy. Measurement uncertainty data for sample results with >1% asbestos concentration can be provided when requested.

Eurofins EPK Built Environment Testing, LLC ("the Company"), a member of the Eurofins Built Environment Testing group of companies, shall have no liability to the client or the client's customer with respect to decisions or recommendations made, actions taken or courses of conduct implemented by either the client or the client's customer as a result of or based upon the Test Results. In no event shall the Company be liable to the client with respect to the Test Results except for the Company's own willful misconduct or gross negligence nor shall the Company be liable for incidental or consequential damages or lost profits or revenues to the fullest extent such liability may be disclaimed by law, even if the Company has been advised of the possibility of such damages, lost profits or lost revenues. In no event shall the Company's liability with respect to the Test Results exceed the amount paid to the Company by the client therefor.

Dates of Analysis:

Asbestos PLM: 12-16-2022

Service SOPs: Asbestos PLM (EPA 40CFR App E to Sub E of Part 763 & EPA METHOD 600/R-93-116, SOP EM-AS-S-1267) NVLAP Lab Code 600331-0

EMLab ID: 3109331, Page 1 of 10Eurofins EPK Built Environment Testing, LLC

Eurofins EPK Built Environment Testing, LLC 4460 Brookfield Corporate Drive, Suite A, Chantilly, VA 20151

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Total Samples Submitted: 35 Total Samples Analyzed: 35

Total Samples with Layer Asbestos Content > 1%: 0

Location: 01, W. Roof- North, Roof Core (Asphalt) Lab ID-Version‡: 15024599-1

Sample Layers Asbestos Content Gray/Black Roofing Material ND

Composite Non-Asbestos Content: 15% Glass Fibers Sample Composite Homogeneity: Good

Location: 02, W. Roof- South, Roof Core (Asphalt) Lab ID-Version‡: 15024600-1

Sample Layers Asbestos Content Gray/Black Roofing Material ND

Composite Non-Asbestos Content: 15% Glass Fibers Sample Composite Homogeneity: Good

Location: 03, W. Roof- West, Roof Core (Asphalt) Lab ID-Version‡: 15024601-1

Sample Layers Asbestos Content Gray/Black Roofing Material ND

Composite Non-Asbestos Content: 15% Glass Fibers Sample Composite Homogeneity: Good

Location: 04, W. Roof- Vent Pipe, Gray/ White Pen. Mastic Lab ID-Version‡: 15024602-1

Sample Layers Asbestos Content Gray/White Mastic ND

Sample Composite Homogeneity: Good

EMLab ID: 3109331, Page 2 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is reflected by the value of "x".

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 05, W. Roof- Vent, Gray/ White Pen. Mastic Lab ID-Version‡: 15024603-1

Sample Layers Asbestos Content Gray/White Mastic ND

Sample Composite Homogeneity: Good

Location: 06, W. Roof- HVAC Island, Gray/ White Pen. Mastic Lab ID-Version‡: 15024604-1

Sample Layers Asbestos Content Gray/White Mastic ND

Sample Composite Homogeneity: Good

Location: 07, W. Roof- Sky Light N., Black Pen. Mastic Lab ID-Version‡: 15024605-1

Sample Layers Asbestos Content Black Mastic ND

Sample Composite Homogeneity: Good

Location: 08, W. Roof- Sky Light W., Black Pen. Mastic Lab ID-Version‡: 15024606-1

Sample Layers Asbestos Content Black Mastic ND

Sample Composite Homogeneity: Good

EMLab ID: 3109331, Page 3 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 09, W. Roof- Sky Light S., Black Pen. Mastic Lab ID-Version‡: 15024607-1

Sample Layers Asbestos Content Black Mastic ND

Sample Composite Homogeneity: Good

Location: 10, W. Roof- Ducting, Duct Sealant Lab ID-Version‡: 15024608-1

Sample Layers Asbestos Content Gray Sealant ND

Sample Composite Homogeneity: Good

Location: 11, W. Roof- Ducting, Duct Sealant Lab ID-Version‡: 15024609-1

Sample Layers Asbestos Content Gray Sealant ND

Sample Composite Homogeneity: Good

Location: 12, Interior- Ducting, Duct Sealant Lab ID-Version‡: 15024610-1

Sample Layers Asbestos Content Gray Sealant ND

Sample Composite Homogeneity: Good

EMLab ID: 3109331, Page 4 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 13, E. Roof- East, Roof Core (Asphalt) Lab ID-Version‡: 15024611-1

Sample Layers Asbestos Content Black Roofing Material ND

Sample Composite Homogeneity: Good

Location: 14, E. Roof- North, Roof Core (Asphalt) Lab ID-Version‡: 15024612-1

Sample Layers Asbestos Content Black Roofing Material ND

Sample Composite Homogeneity: Good

Location: 15, E. Roof- West, Roof Core (Asphalt) Lab ID-Version‡: 15024613-1

Sample Layers Asbestos Content Black Roofing Material ND

Sample Composite Homogeneity: Good

Location: 16, E. Roof- Vent Pipes, Black Pen. Mastic Lab ID-Version‡: 15024614-1

Sample Layers Asbestos Content Black Mastic ND

Sample Composite Homogeneity: Good

EMLab ID: 3109331, Page 5 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 17, E. Roof- HVAC Island, Black Pen. Mastic Lab ID-Version‡: 15024615-1

Sample Layers Asbestos Content Black Mastic ND

Sample Composite Homogeneity: Good

Location: 18, E. Roof- Wind Breaker Wall, Black Pen. Mastic Lab ID-Version‡: 15024616-1

Sample Layers Asbestos Content Black Mastic ND

Sample Composite Homogeneity: Good

Location: 19, E. Roof- Vents, Gray/Black Pen. Mastic W/ Fibrinous Material Lab ID-Version‡: 15024617-1

Sample Layers Asbestos Content Gray/Black Mastic ND

Sample Composite Homogeneity: Good

Location: 20, E. Roof- Vents, Gray/Black Pen. Mastic W/ Fibrinous Material Lab ID-Version‡: 15024618-1

Sample Layers Asbestos Content Gray/Black Mastic ND

Sample Composite Homogeneity: Good

EMLab ID: 3109331, Page 6 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 21, E. Roof- Vents, Gray/Black Pen. Mastic W/ Fibrinous Material Lab ID-Version‡: 15024619-1

Sample Layers Asbestos Content Gray/Black Mastic ND

Sample Composite Homogeneity: Good

Location: 22, Roof Flashing- North, White Caulking Lab ID-Version‡: 15024620-1

Sample Layers Asbestos Content White Caulk ND

Sample Composite Homogeneity: Good

Location: 23, Roof Flashing- East White Caulking Lab ID-Version‡: 15024621-1

Sample Layers Asbestos Content White Caulk ND

Sample Composite Homogeneity: Good

Location: 24, Roof Flashing- West, White Caulking Lab ID-Version‡: 15024622-1

Sample Layers Asbestos Content White Caulk ND

Sample Composite Homogeneity: Good

EMLab ID: 3109331, Page 7 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 25, Roof Parapet Wall- N., Mortar Lab ID-Version‡: 15024623-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 26, Roof Parapet Wall- S., Mortar Lab ID-Version‡: 15024624-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 27, Roof Parapet Wall- W., Mortar Lab ID-Version‡: 15024625-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 28, Interior Ceiling- N., Lendrin Ceiling Tile Lab ID-Version‡: 15024626-1

Sample Layers Asbestos Content Gray Ceiling Tile with White Surface ND

Composite Non-Asbestos Content: 65% Cellulose 25% Mineral Wool

Sample Composite Homogeneity: Moderate

EMLab ID: 3109331, Page 8 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 29, Interior Ceiling- S., Lendrin Ceiling Tile Lab ID-Version‡: 15024627-1

Sample Layers Asbestos Content Gray Ceiling Tile with White Surface ND

Composite Non-Asbestos Content: 65% Cellulose 25% Mineral Wool

Sample Composite Homogeneity: Moderate

Location: 30, Interior Ceiling- E., Lendrin Ceiling Tile Lab ID-Version‡: 15024628-1

Sample Layers Asbestos Content Gray Ceiling Tile with White Surface ND

Composite Non-Asbestos Content: 65% Cellulose 25% Mineral Wool

Sample Composite Homogeneity: Moderate

Location: 31, Interior- E. Restroom Ceiling, DW/JC Lab ID-Version‡: 15024629-1

Sample Layers Asbestos Content White Drywall with Brown Paper ND White Joint Compound with Paint ND

Composite Non-Asbestos Content: 10% Cellulose Sample Composite Homogeneity: Moderate

Location: 32, Interior- E. Office Area E. Wall, DW/JC Lab ID-Version‡: 15024630-1

Sample Layers Asbestos Content White Drywall with Brown Paper ND White Joint Compound with Paint ND

Composite Non-Asbestos Content: 10% Cellulose Sample Composite Homogeneity: Moderate

EMLab ID: 3109331, Page 9 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed. Floor tile samples may contain large amounts of interference material and it is recommended that the sample be analyzed by gravimetric point count analysis to lower the detection limit and to aid in asbestos identification.

‡ A "Version" indicated by -"x" after the Lab ID# with a value greater than 1 indicates a sample with amended data. The revision number is

(866) 871-1984 www.eurofinsus.com/BuiltClient: Ninyo & Moore - Irvine C/O: David Kelly Re: 210042000Q; MSC Building, 1301 W. 12th Street

Date of Sampling: 12-13-2022 Date of Receipt: 12-14-2022 Date of Report: 12-19-2022

ASBESTOS PLM REPORT

Location: 33, Interior- E. Elec. Room Ceiling, DW/JC Lab ID-Version‡: 15024631-1

Sample Layers Asbestos Content White Drywall with Brown Paper ND White Joint Compound with Paint ND

Composite Non-Asbestos Content: 10% Cellulose Sample Composite Homogeneity: Moderate

Location: 34, Interior- W. Elec. Room S. Wall, DW/JC Lab ID-Version‡: 15024632-1

Sample Layers Asbestos Content White Drywall with Brown Paper ND White Joint Compound with Paint ND

Composite Non-Asbestos Content: 10% Cellulose Sample Composite Homogeneity: Moderate

Location: 35, Interior- Common Area N. Wall, DW/JC Lab ID-Version‡: 15024633-1

Sample Layers Asbestos Content White Drywall with Brown Paper ND White Joint Compound with Paint ND

Composite Non-Asbestos Content: 10% Cellulose Sample Composite Homogeneity: Moderate

EMLab ID: 3109331, Page 10 of 10Eurofins EPK Built Environment Testing, LLC

The test report shall not be reproduced except in full, without written approval of the laboratory. The report must not be used by the client to claim product certification, approval, or endorsement by any agency of the federal government. The Company reserves the right to dispose of all samples after a period of thirty (30) days, according to all state and federal guidelines, unless otherwise specified.

Inhomogeneous samples are separated into homogeneous subsamples and analyzed individually. ND means no fibers were detected. When detected, the minimum detection and reporting limit is less than 1% unless point counting is performed.

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