B08_Attachment_7-Hazmat_Survey_Report.pdf

Hazardous Materials Survey Report Stinson Beach Lifeguard Tower and Snack Bar

Stinson Beach, CA 94970

Prepared for

Mr. Michael Gelfand

WSP USA

One Penn Plaza, 4th Floor New York, NY 10119

Jerald Cook, CIH, CAC, CDPH Lead I/A

Prepared by

Professional Service Industries, Inc.

4703 Tidewater Avenue, Suite B

Oakland, CA 94601

(510) 434-9200

L. J. Stallworth Department Manager/Principal Consultant

February 19, 2023

PSI Project 05822259-1 www.intertek.com/building

TABLE OF CONTENTS

1 EXECUTIVE SUMMARY

1.1 GENERAL INFORMATION

1.2 AUTHORIZATION

1.3 SUMMARY OF FINDINGS

2 RESULTS SUMMARY

2.1 ACM SURVEY RESULTS

2.2 LEAD-CONTAINING MATERIALS RESULTS

2.3 UNIVERSAL WASTES

2.4 POLYCHLORINATED BIPHENYLS (PCB) SURVEY RESULTS-REMOVE IF NOT ANALYZED

3 WARRANTY

3.1 USED BY THIRD PARTIES

3.2 UNIDENTIFIABLE CONDITIONS

4 METHODS

4.1 ASBESTOS-CONTAINING MATERIALS

4.2 LEAD BASED PAINT

4.3 POLYCHLORINATED BIPHENYLS (PCB) MATERIALS

5 NOTICES, PERMITS, AND LICENSES

5.1 LOCAL AIR QUALITY BOARD

5.2 CAL-OSHA

5.3 PERMITS

5.4 LICENSES

LIST OF APPENDICES

APPENDIX A – ASBESTOS LABORATORY RESULTS AND CHAIN OF CUSTODY DOCUMENTATION SAMPLE

LOCATIONS

APPENDIX B – LEAD LABORATORY RESULTS AND CHAIN OF CUSTODY DOCUMENTATION

APPENDIX C – SAMPLE LOCATION DIAGRAM

APPENDIX D – PERSONNEL CERTIFICATIONS

APPENDIX E – POLYCHLORINATED BIPHENYLS (PCB) LABORATORY RESULTS AND CHAIN OF CUSTODY

DOCUMENTATION

APPENDIX E – PHOTO LOG

PSI Project Number.: 05822259-1 Limited Hazardous Materials Survey

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

1 EXECUTIVE SUMMARY

1.1 GENERAL INFORMATION

Professional Service Industries, Inc. (PSI) was retained by to perform a pre-renovation hazardous materials survey for the buildings located at Stinson Beach Lifeguard Snack Bar in Stinson Beach, California. The survey area consisted of a one-story snack bar and attached lifeguard tower totaling approximately 1730 square feet.

1.2 AUTHORIZATION

Authorization to perform this survey was provided via email from WSP.

1.3 SUMMARY OF FINDINGS

The scope of work included the identification of suspect Asbestos-Containing Materials (ACM), lead-containing paints, Polychlorinated Biphenyls (PCB)-containing materials and Universal Waste. The survey was conducted on January 30, 2023 by PSI representatives Wendy Plank, CAC, CDPH Lead Project Designer and Inspector/Assessor and Antonio Navarro, under the technical guidance of PSI Principal Consultant L. J. Stallworth.

1.3.1 ASBESTOS-CONTAINING MATERIALS

A total of twenty-two (22) samples of suspect asbestos-containing materials were collected with twenty-two (22) analyzed from the buildings for asbestos content. Materials that were sampled during the survey included Barrier Paper, window caulking, roof flashing mastic, paints, roof shingles, and ceiling tile glue. Asbestos containing materials were identified by laboratory analysis in the designated structures. A summary of lab results is provided in Section 2 of this report.

For bulk samples which are found to contain <1% asbestos, Point Count Analysis as described by the method for the determination of asbestos in accordance with Environmental Protection Agency’s (EPA) “Interim Method for Identification of Asbestos in Bulk Insulation Samples” (40 CFR 763, Appendix A, Subpart F), is often utilized. As part of this method, a bulk sample is reduced, in an effort to dissolve any non-asbestos constituents, such as calcite. As a result of this reduction process, a concentrated sample is then obtained and analyzed. A minimum number of counts for each sample are 400. The number of identified asbestos points is divided by 400, then multiplied by 100 in order to calculate the percentage. Each asbestos type is quantified individually

1.3.2 LEAD-CONTAINING MATERIALS

Seventeen (17) samples of suspect lead containing materials were collected from the buildings for lead analysis during the survey. One sample was found to be above the analytical detection limit. In general, paint coatings were observed to be in intact condition at the time of the survey. A summary of laboratory result information is listed in Section 2 of this report.

Four soil samples were collected at a depth of <6 inches below ground surface around the Tower/Snack Bar Structure for lead content analysis. A summary of lab results is provided in Appendix D of this report.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

1.3.3 UNIVERSAL WASTES

PSI documented universal wastes, including fluorescent light tubes, refrigerants, thermostats, smoke detectors, sprinkler heads, and incandescent light bulbs.

2 RESULTS SUMMARY

2.1 ACM SURVEY RESULTS

A material is considered by the Environmental Protection Agency (EPA) to be asbestos-containing if at least one sample collected from an area shows asbestos present in an amount greater than one percent (1%). In the State of California, the Department of Occupational Safety and Health (DOSH) considers a material to be Asbestos- Containing Construction Material (ACCM) if at least one sample collected from the area shows asbestos present in an amount greater than one-tenth of one percent (>0.1%).

Also, information from the 2012 Survey Report completed by Mactec Engineering and Consulting, Inc. was utilized and verified in the field by the PSI team.

The following homogeneous suspect building materials were investigate as part of this survey. Results are summarized in the following tables.

TABLE 1 – ASBESTOS SAMPLING RESULTS

Material I.D. Material

Description Sample Location f/nf NESHAP Category condition No. of

Samples RESULTS APROX.

QUANTITY

14424 – 12A Concealed Floor Barrier Paper

Tower 3rd and 2nd floors F N/A Significantly Damaged 2 Non-ACM ---

14424 – 13A Interior Window Caulking

Tower NF N/A Damaged 2 Non-ACM ---

14424 – 14A Exterior Window Caulking

Tower NF N/A Damaged 2 Non-ACM ---

14424 – 15A Roof Flashing Mastic

Tower 3rd Floor Roof NF N/A Good 2 Non-ACM ---

14424 001A, 001B

Gypsum Wall and Ceiling Board

Tower Interior F RACM Damaged N/A Contaminated

ACM

2,000 SFJoint Compound assoc. with

Gypsum Wall Board

Tower Interior F RACM Damaged N/A Confirmed

ACM in 2012 Report

14424 011A 12”x12” Dark Brown Floor Tiles

Tower, 1st Aid Room NF 2 Damaged N/A

Confirmed ACM in 2012

Report

42 SF

14424 011B Mastic assoc.

with 12”x12”

Floor Tiles

Tower, 1st Aid Room NF N/A Good N/A

Confirmed Non-ACM in 2012 Report

14424 010 ACM Cement Board Wall

Panels

Tower Exterior, 3rd Level NF 2 Good N/A

Confirmed ACM in 2012

Report

100 SF

14424-16A Gray paint on wood

Tower Exterior NF N/A Damaged 2 Non-ACM ---

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

Material I.D. Material Description Sample Location f/nf NESHAP

Category condition No. of Samples RESULTS APROX.

QUANTITY

14424 002A, 002B, 004A, 004B

Resilient Sheet Flooring and

Adhesive Tower NF N/A Damaged N/A

Confirmed Non-ACM in 2012 Report

14424 003A, 003B

1’x1’ Ceiling Tiles and Adhesive

Tower F/NF N/A Good N/A Confirmed

Non-ACM in 2012 Report

14424 005A, 005B, 008A, 008B

Covebase and assoc. Mastic

Tower NF N/A Damaged N/A Confirmed

Non-ACM in 2012 Report

14424 006A, 006B

Stair Tread and assoc. Mastic

Tower NF N/A Damaged N/A Confirmed

Non-ACM in 2012 Report

14424 007A, 007B

Resilient Sheet Flooring, and

Adhesive Tower NF N/A Damaged N/A

Confirmed Non-ACM in 2012 Report

14424 – 18 Built-up Roofing Tower, 3rd Level NF 2 Damaged N/A Assumed

ACM 620 SF

14424 – 17 Roofing/Flashing Tower Top Roof NF 2 Damaged N/A Assumed

ACM 64 SF

--- Electrical Wiring Insulation

Tower --- N/A N/A N/A Non-suspect ---

--- Wood Floors Tower --- N/A N/A N/A Non-suspect ---

14425 – 8A Paint on wood Snack Bar Exterior NF N/A Significantly

Damaged 2 Non-ACM ---

14425 – 9A Roof shingles Snack Bar Lower

Roof NF N/A Good 2 Non-ACM ---

14425 – 10A Flashing mastic on Exhaust Vent

Snack Bar Roof NF N/A Damaged 2 Non-ACM ---

14425 – 11A Flashing mastic Snack Bar Roof

Perimeter NF N/A Good 2 Non-ACM ---

14425 – 12A Roof shingles Snack Bar Small Overhang Roof next to the Tower NF N/A Good 2 Non-ACM ---

14425 – 13A 1’x1’ Ceiling Tile Glue/Adhesive

Snack Bar NF N/A Good 2 Non-ACM ---

14425 002A, 002B, 002C

Resilient Sheet Flooring, Adhesive, Leveling

Compound

Snack Bar NF/F N/A Damaged N/A Confirmed

Non-ACM in 2012 Report

14425 003A, 003B

Covebase and assoc. Mastic

Snack Bar NF N/A Damaged N/A Confirmed

Non-ACM in 2012 Report

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

Material I.D. Material Description Sample Location f/nf NESHAP

Category condition No. of Samples RESULTS APROX.

QUANTITY

14425 001A, 001B

Gypsum Wall and Ceiling Board

Snack Bar F RACM Damaged N/A Contaminated

ACM

4,100 SFJoint Compound assoc. with

Gypsum Wall Board

Snack Bar F RACM Damaged N/A Confirmed

ACM in 2012 Report

14425 004A 1’x1’ Ceiling Tiles, Pindot

Snack Bar F N/A Damaged N/A Confirmed

Non-ACM in 2012 Report

14425 005A 1’x1’ Ceiling Tiles, smooth

Snack Bar F N/A Damaged N/A Confirmed

Non-ACM in 2012 Report

--- Electrical Wiring Insulation

Snack Bar --- N/A N/A N/A Non-suspect ---

--- Wood Floors Tower --- N/A N/A N/A Non-suspect ---

Total 6,926 SF

N/A = Not Applicable SF = square feet LF = linear feet

2.2 LEAD-CONTAINING MATERIALS RESULTS

Federal efforts to regulate Lead Based Paint (LBP) began with the enactment of the Lead-Based Paint Poison Prevention Act (LBPPPA) in 1971. In 1973, the Consumer Product Safety Commission (CPSC) defined lead-based paint 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%. In 2011, the CPSC once again lowered the allowable lead levels in new paint or similar surface coatings to 0.009%.

The Housing and Urban Development Agency (HUD) developed guidelines relating to HUD facilities. The HUD guidelines specified lead content of 0.5% as an action level in determining the need for corrective action. Federal and State Occupational Health and Safety Administration (Fed-OSHA 29 CFR 1920.1025 and California-OSHA and California-OSHA under Title 8 CCR 1532.1) do not define the amount of lead in paint to a regulatory requirement;

rather the activities or task define when the regulation is in 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 the regulations based on the level of disturbance rather than the lead level.

The following materials were sampled for lead content as part of this survey. Results are summarized in following table(s).

TABLE 2 – LEAD SAMPLING RESULTS

Material I.D. Material Description Location Condition

Result % Lead by

Weight LBP/LCP Approx.

Quantity

14424 -

PB-01

Tower exterior blue paint on wood post

Tower exterior post Significantly Damaged 0.024 LCP 350 SF

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

Material I.D. Material Description Location Condition

Result % Lead by

Weight LBP/LCP Approx.

Quantity

14424

PB-02

Blue paint on exterior siding

Tower exterior siding Significantly Damaged <0.008 --- ---

14424 PB-03 Brown paint metal sign Exterior WS Significantly

Damaged 0.64 LBP 10 SF

14424

PB-04

Dr blue paint on wood window trim

Window trim Damaged <0.008 --- ---

14424

PB-05

White paint on exterior window trim - metal

Exterior window trim Damaged 0.0083 ---

[at limit of detection]

14424

PB-06

Blue paint on metal stair rail

Interior 2nd floor tower

Significantly Damaged 0.43 LCP 50 SF

14424

PB-07

Green paint on metal flashing

Metal flashing top tower Damaged <0.008 --- ---

14424

PB-08

White paint on interior panels

Top tower on transite panel Damaged 0.048 LCP 96 SF

14424

PB-09

White paint on wood exterior trim

Exterior window trim Damaged <0.008 --- ---

14425

PB-01

Blue paint on exterior wood siding

Snack bar exterior siding

Significantly Damaged 0.01 LCP 800 SF

14425

PB-02

White paint on wood trim exterior

Snack bar wood trim exterior

Significantly Damaged 0.023 LCP 250 SF

14425

PB-03

White paint on interior wood trim

Snack bar interior wood trim

Significantly Damaged <0.008 --- ---

14425 PB-04 Black paint on wood door Snack bar door Damaged 0.022 LCP 60 SF

14425

PB-05

White paint on wood shelves

Storage shelves Damaged <0.0009 --- ---

14425 PB-06 White paint on wood door Snack bar door Significantly

Damaged 0.065 LBP 120 SF

< 0.008 = Below analytical limit of detection LBP = Lead-based Paint (greater than 0.5% by weight) LCP = Lead-containing Paint (above limit of detection but below 0.5% by weight)

There is the possibility that other surfaces may contain levels of lead. Caution should be taken during demolition and renovation activities to prevent lead levels in generated airborne dust from painted surfaces from exceeding the Permissible Exposure Limit (PEL) as required by California/OSHA, Title 8, CCR Construction Safety Orders for Lead, Section 1532.1.

Title 17, California Code of Regulations (CCR), Division 1, Chapter 8: Accreditation, Certification and Work Practices for Lead-Based Paint and Lead Hazards, defines lead-based paint as paint or other surfacing coating that contain an amount of lead equal to, or in excess of one milligram per square centimeter (1.0 mg/cm2) or more than 0.5% by weight. The industry has interpreted this to mean that any detectable amount of lead is regulated. For example, employees who perform trigger tasks (such as manual demolition) are required to receive employer provided training, air monitoring, protective clothing, respirators, and hand washing facilities.

In addition, there are standard work practices required such as the use of wet methods and HEPA vacuums.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

Soil lead sampling results are provided in the table below. The samples were below the laboratory analytical limit of detection.

TABLE 3 – LEAD SOIL SAMPLING RESULTS

MATERIAL I.D. LOCATION RESULT (PPM)

GOGA-LEAD-N North Facade <40 GOGA-LEAD-S South Facade <40 GOGA-LEAD-E East Facade <40 GOGA-LEAD-W West Facade <40

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

2.3 UNIVERSAL WASTES

Universal Wastes are provided in the table below.

UNIVERSAL WASTE DESCRIPTION QUANTITY

Fluorescent light tubes 14 Refrigerants None Thermostats None

Smoke detectors 3 Sprinkler heads None

Incandescent light bulbs None

2.4 POLYCHLORINATED BIPHENYLS (PCB) SURVEY RESULTS

Cal/EPA regulates the disposal of PCB-containing materials. Materials containing more than 1 ppm PCBs must be disposed in accordance with Cal/EPA regulations. The following materials were sampled for PCB content as part of this survey. Results are summarized in following tables.

TABLE 3 – POLYCHLORINATED BIPHENYLS (PCB) SAMPLING RESULTS

SAMPLE I.D. MATERIAL DESCRIPTION LOCATION

RESULT

(PPM)

Sample 14425-1 Ceiling tile brow mastic Snack bar hallway <0.24

Sample 14425-2 Ceiling tile brow mastic Bar <0.24

Sample 14424-3 White caulking exterior Lifeguard tower exterior <0.25

Sample 14424-4 Grey caulking Lifeguard tower Interior caulking <0.25

All samples were found to contain PCBs below the laboratory’s analytical detection limits. Laboratory reports and chain of custody documentation are included in Appendix E.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

3 WARRANTY

PSI warrants that the findings contained herein have been prepared in general accordance with the standard of care exercised within the asbestos and lead-based paint testing and abatement industries. PSI recognizes that raw laboratory test data are not usually sufficient to make all abatement and management decisions.

The survey included inspection of reasonably accessible materials such as above or behind suspended ceilings, walls or other non-permanent structures. PSI did not, however, inspect or sample inaccessible areas.

The information contained in this report is based upon the data furnished by the client and observations and test results provided by PSI. These observations and results are time dependent, are subject to changing site conditions, and revisions to Federal, State and local regulations.

PSI did not provide any service to investigate or detect the presence of moisture, mold or other biological contaminates in or around any structure, or any service that was designed or intended to prevent or lower the risk of the occurrence of the amplification of the same. Client acknowledges that mold is ubiquitous to the environment with mold amplification occurring when building materials are impacted by moisture. Client further acknowledges that site conditions are outside of PSI’s control, and that mold amplification will likely occur, or continue to occur, in the presence of moisture. As such, PSI cannot and shall not be held responsible for the occurrence or recurrence of mold amplification. No other warranties are implied or expressed.

3.1 USED BY THIRD PARTIES

This report was prepared pursuant to the contract PSI has with the client. That contractual relationship included an exchange of information about the subject sites that was unique and between PSI and the client and serves as the basis upon which this report was prepared. Because of the importance of the communication between PSI and the client reliance or any use of this report by anyone other than the client for whom it was prepared, is prohibited and therefore not foreseeable to PSI.

Reliance or use by any such third party without explicit authorization in the report does not make said third party a third-party beneficiary to PSI’s contract with the client. Any such unauthorized reliance on or use of this report, including any of its information or conclusions, will be at third party’s risk. For the same reasons, no warranties or representations, expressed or implied in this report, are made to any such third party.

3.2 UNIDENTIFIABLE CONDITIONS

This report is necessarily limited to the conditions observed and to the information available at the time of the work. Due to the nature of the work, there is a possibility that conditions may exist, which could not be identified within the scope of work or which were not apparent at the time of our site work. This report is also limited to information available from the client at the time it was prepared. The report may not represent all conditions at the subject sites as it only reflects the information gathered from specific locations.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

4 METHODS

4.1 ASBESTOS-CONTAINING MATERIALS

Inspection and sampling procedures were performed in accordance with the guidelines published by the EPA in 40 CFR Part 763 Subpart E, October 30, 1987. Sampling procedures include collection of at least 3 samples of all suspect friable and non-friable materials as recommended by EPA Guidance document 700/B-92/001, February 1992. An EPA accredited inspector performed the inspection and survey as described below.

The survey consisted of three major activities: visual inspection, sampling, and quantification of building materials. Although these activities are listed separately, they are integrated tasks.

4.1.1 VISUAL INSPECTION

An initial building walkthrough was conducted to determine the presence and condition of suspect materials that were accessible and/or exposed. Materials, which were similar in general appearance, were grouped into homogeneous sampling areas.

HOMOGENEOUS MATERIAL CLASSIFICATIONS

A preliminary walkthrough of the building was conducted to determine areas of materials, which were visually similar in color, texture, general appearance, and which appeared to have been installed at the same time. Such materials are termed "homogeneous materials" by the EPA. During this walkthrough, the approximate locations of these homogeneous materials were also noted.

Following the EPA inspection protocol, each identified suspect homogeneous material was placed in one of the following EPA classifications:

1. Surfacing Materials (spray or trowel applied to building members).

2. Thermal System Insulation (materials generally applied to various mechanical systems).

3. Miscellaneous Materials (any materials which do not fit either of the above categories).

FRIABILITY CLASSIFICATIONS

A regulated asbestos-containing material (RACM) as defined by National Emissions Standard for Hazardous Air Pollutants (NESHAP), is any (a) Friable asbestos material, (b) Category I non-friable ACM that has become friable,

(c) Category I non-friable ACM that will be or has been subjected to sanding, grinding, cutting, or abrading, or (d) 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 in the course of renovation operations.

Following the EPA inspection protocol, each identified suspect homogeneous material was placed in one of the following EPA classifications:

RACM (regulated asbestos-containing materials) Friable Materials NESHAP defines a friable ACM as any material containing more than one percent asbestos, which, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

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 a Category I non-friable ACM, which contains more than one percent asbestos and cannot be, reduced to a powder by hand pressure when dry.

4.1.2 SAMPLING PROCEDURES

Following the walkthrough, the inspector collected selected samples of accessible materials identified as suspect ACM.

EPA guidelines were used to determine the sampling protocol. Sampling locations were chosen to be representative of the homogeneous material.

Samples of surfacing material were collected in general accordance with the EPA sampling protocol outlined in the EPA publication, "Asbestos in Buildings: Simplified Sampling Scheme for Friable Surfacing Materials" (EPA 560/5-85-030a, October 1985). Representative samples were taken preferentially from already damaged areas or areas which were the least visible.

Samples of miscellaneous materials were taken as randomly as possible while again attempting to sample already damaged areas so as to minimize disturbance of the material. Multiple sampling was used to assess each miscellaneous material unless the total quantity of accessible material was less than 260 square feet.

4.1.3 QUANTIFICATIONS

Quantities of accessible and/or exposed building materials that were suspected of containing asbestos were estimated. Taking approximate measurements in the field performed this estimation.

4.1.4 LABORATORY PROCEDURES

METHOD OF ANALYSIS

Analysis was performed at EMSL Analytical in San Leandro, CA, a National Voluntary Laboratory Accreditation Program (NVLAP) accredited laboratory. 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.

Analysis was performed by using the bulk sample 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 identified asbestos. 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. All bulk samples were analyzed by Polarized Light Microscopy (PLM) with dispersion staining as described by the method of the

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023 determination of asbestos in bulk insulation, 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 which result enable mineral identification.

For bulk samples which are found to contain <1% asbestos, Point Count Analysis as described by the method for the determination of asbestos in accordance with Environmental Protection Agency’s (EPA) “Interim Method for Identification of Asbestos in Bulk Insulation Samples” (40 CFR 763, Appendix A, Subpart F), is often utilized. As part of this method, a bulk sample is reduced, in an effort to dissolve any non-asbestos constituents, such as calcite. As a result of this reduction process, a concentrated sample is then obtained and analyzed. A minimum number of counts for each sample are 400. The number of identified asbestos points is divided by 400, then multiplied by 100 in order to calculate the percentage. Each asbestos type is quantified individually.

4.2 LEAD BASED PAINT

This survey was prepared in anticipation of possible renovation or demolition of the building. Survey activities included the sampling of major building components with sample locations provided in the drawings set forth in Appendix B of this report.

4.2.1 VISUAL INSPECTION

An initial walk-through was conducted to determine the presence of loose and peeling paint films and materials suspected to contain lead which were accessible and/or exposed in the building. Major building components were selected, and paint-chip and bulk sampling was performed.

4.2.2 SAMPLING PROCEDURES

Following the walk-through, the inspector performed paint-chip and bulk sampling of the selected building component. The paint chip sample was approximately a 2" x 2" chip that represents all potential paint layers.

4.2.3 LABORATORY PROCEDURES

Analysis was performed at EMSL Analytical, located in San Leandro, CA, a National Volunteer Laboratory Accreditation Program (NVLAP) accredited laboratory using the method for determination of lead in paint-chip samples. The lead analysis was performed using a Flame Atomic Absorption Spectrophotometer (FLAA) (Method 7420). The FLAA burner head was first lit by opening the flow regulator on the acetylene tank and was allowed to thermally stabilize before any analysis procedures could begin. The samples were filtered and examined after placing in an auto-sampler tube. The FLAA was calibrated using a known lead standard. After the FLAA calibration procedure was completed, the lead-chip samples were analyzed by the FLAA.

LABORATORY QUALITY CONTROL PROGRAM

EMSL Analytical is AIHA accredited and participates in the AIHA, ELLAP, and ELPAT performance rounds as part of the accreditation requirements. Quality control procedures at the laboratory monitor the proficiency of the technicians and the reliability of the results and include the insertion of various samples into the sample stream for quality assurance. The laboratory demonstrates proficiency with each analytical method used, including documentation of precision and accuracy, and maintenance of detection limit information.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

4.3 POLYCHLORINATED BIPHENYLS (PCB) MATERIALS

This survey was prepared in anticipation of possible demolition of the building. Building products including caulking and glazing putty manufactured before 1979 may contain PCBs. Materials found to contain greater than 50 ppm PCB content are classified as PCB Bulk Product Waste under 40 CFR 761.61.

4.3.1 VISUAL INSPECTION

An initial walk-through was conducted to determine the presence of materials suspected to contain PCBs which were accessible and/or exposed in the building. Major building components were selected, and bulk sampling was performed.

4.3.2 SAMPLING PROCEDURES

Following the walk-through, the inspector performed bulk sampling of the selected building component.

4.3.3 LABORATORY PROCEDURES

Analysis was performed by EMSL Analytical in Cinnaminson, NJ, a NVLAP accredited laboratory, using the method for determination of polychlorinated biphenyls (PCB) samples. Samples were analyzed by Gas Chromatography- Electron Capture Detector (GC-ECD) by EPA Method 8082.

Stinson Beach Lifeguard Tower and Snack Bar Stinson Beach, CA February 15, 2023

5 NOTICES, PERMITS, AND LICENSES

Asbestos Containing Materials were identified in this location. Assumed materials will be subject to the requirements set forth in all applicable local, state, and federal regulations until tests are performed to confirm the absence of asbestos.

Regarding lead in paint or coatings, it should be noted that federal OSHA does not define an amount of lead in a product that triggers their regulation. This is interpreted to mean that the regulation must be followed when there is any “detectable” lead in the product. Cal-OSHA Lead in Construction Standard 1532.1 sets regulations that take effect when workers disturb lead coatings or materials that contain any detectable levels of lead.

The following notices, permits and licenses are necessary for abatement work as of the date of this report. The abatement contractor is cautioned to verify these requirements as applicable to the final project scope and confirm that no new requirements exist.

5.1 LOCAL AIR QUALITY BOARD

Written notification is required to the Bay Area Air Quality Management District (BAAQMD) at least 10 days prior to beginning any work on friable asbestos-containing materials. The EPA also enforces this requirement.

5.2 CAL-OSHA

Written notification on (their form) to the California Occupational Safety and Health Administration (Cal-OSHA) is required by Cal-OSHA Asbestos Regulations (Title 8, Section 341.9) at least 24 hours prior to beginning any work on asbestos-containing materials.

Prior to the abatement, all employees, contractors, or other parties who may be affected by the abatement must be advised in writing of activities pursuant to Cal-OSHA Asbestos Regulations (Title 8, Section 1529, Subpart K).

5.3 PERMITS

The abatement contractor must obtain all building and special permits required for the asbestos removal work, including permits required by the Uniform Fire Code (UFC), if applicable.

5.4 LICENSES

The Abatement Contractor must maintain current licenses as required by applicable state or local jurisdictions for the removal, transporting, disposal or other regulated activity.

APPENDIX A – SAMPLE LOCATIONS

2004595 Line

2004595 Rectangle

2004595 Rectangle

2004595 Rectangle

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Text Box Sheetrock Wall & Ceiling Board with ACM Joint Compound

2004595 Rectangle

2004595 Rectangle

2004595 Rectangle

2004595 Text Box 12-inch Glued-On Ceiling Tiles with ACM Mastic

2004595 Rectangle

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Rectangle

2004595 Rectangle

2004595 Line

2004595 Line

2004595 Line

2004595 Text Box Exterior ACM Cement Board Wall Panels

Line

Rectangle

2004595 Rectangle

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Line

2004595 Text Box Sheetrock Wall & Ceiling Board with ACM Joint Compound

2004595 Text Box Exterior ACM Cement Board Wall Panels

2004595 Line

2004595 Rectangle

Text Box

APPENDIX B – INSPECTOR CERTIFICATIONS

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APPENDIX C – ASBESTOS LABORATORY RESULTS AND CHAIN OF CUSTODY

EMSL Analytical, Inc.

464 McCormick Street San Leandro, CA 94577

Tel/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com / sanleandrolab@emsl.com

092302461EMSL Order:

Customer ID: PSIK26

Customer PO: 31800179.004

Project ID:

Attention: Phone:Jerald Cook (510) 434-9200

Fax:PSI, Inc. (510) 434-7676

Received Date:4703 Tidewater Avenue 01/30/2023 10:45 AM

Analysis Date:Suite B 02/01/2023

Collected Date:Oakland, CA 94601

Project: 05822259 - 31800179.004

Test Report: Asbestos Analysis of Bulk Materials via AHERA Method 40CFR 763 Subpart E

Appendix E supplemented with EPA 600/R-93/116 using Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous

Non-Asbestos Asbestos

% Type

606A-14425-8A-1-Paint

092302461-0001

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Gray

Non-Fibrous

Homogeneous

PAINT ON WOOD

606A-14425-8A-1-Paint

092302461-0001A

None DetectedMatrix

Non-fibrous (Other)

80%

20%

White/Green

Non-Fibrous

Homogeneous

PAINT ON WOOD

606A-14425-8A-2

092302461-0002

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Gray

Non-Fibrous

Homogeneous

PAINT ON WOOD

606A-14425-9A-1-Shing le 1

092302461-0003

None DetectedMatrix

Non-fibrous (Other)

60%

25%

Glass15%Various/Black

Fibrous

Homogeneous

ROOF SHINGLE

606A-14425-9A-1-Shing le 2

092302461-0003A

None DetectedMatrix

Non-fibrous (Other)

60%

25%

Glass15%Gray/Black

Fibrous

Homogeneous

ROOF SHINGLE

606A-14425-9A-2-Shing le 1

092302461-0004

None DetectedMatrix

Non-fibrous (Other)

60%

25%

Glass15%Various/Black

Fibrous

Homogeneous

ROOF SHINGLE

606A-14425-9A-2-Shing le 2

092302461-0004A

None DetectedMatrix

Non-fibrous (Other)

60%

25%

Glass15%Brown/Black

Fibrous

Homogeneous

ROOF SHINGLE

606A-14425-10A-1

092302461-0005

None DetectedMatrix

Non-fibrous (Other)

70%

20%

Cellulose10%Black

Non-Fibrous

Homogeneous

FLASHING MASTIC -

ROOF

606A-14425-10A-2

092302461-0006

None DetectedMatrix

Non-fibrous (Other)

70%

20%

Cellulose10%Black

Non-Fibrous

Homogeneous

FLASHING MASTIC -

ROOF

606A-14425-11A-1-Mas tic

092302461-0007

None DetectedMatrix

Non-fibrous (Other)

70%

20%

Cellulose10%Black

Non-Fibrous

Homogeneous

FLASHING MASTIC

606A-14425-11A-1-Tap e

092302461-0007A

None DetectedMatrix

Non-fibrous (Other)

50%

20%

Synthetic30%Brown/Gray/Tan

Fibrous

Homogeneous

FLASHING MASTIC

606A-14425-11A-2-Mas tic

092302461-0008

None DetectedMatrix

Non-fibrous (Other)

70%

20%

Cellulose10%Black

Non-Fibrous

Homogeneous

FLASHING MASTIC

606A-14425-11A-2-Tap e

092302461-0008A

None DetectedMatrix

Non-fibrous (Other)

50%

20%

Synthetic30%Gray/White

Fibrous

Homogeneous

FLASHING MASTIC

Report amended: 02/07/2023 07:43:03 Replaces initial report from: 02/01/2023 10:15:21 Reason Code: Client-Change to PO

Page 1 of 2ASB_PLM_0008_0001 - 1.78 Printed: 2/7/2023 7:43 AM

Tel/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com / sanleandrolab@emsl.com

092302461EMSL Order:

Customer ID: PSIK26

Customer PO: 31800179.004

Project ID:

Test Report: Asbestos Analysis of Bulk Materials via AHERA Method 40CFR 763 Subpart E

Appendix E supplemented with EPA 600/R-93/116 using Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous

Non-Asbestos Asbestos

% Type

606A-14425-12A-1-Shin gle

092302461-0009

None DetectedMatrix

Non-fibrous (Other)

50%

35%

Glass15%Various/Black

Fibrous

Homogeneous

ROOF SHINGLE -

SMALL 12

OVERHANG

606A-14425-12A-1-Tar

092302461-0009A

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Black

Non-Fibrous

Homogeneous

ROOF SHINGLE -

SMALL 12

OVERHANG

606A-14425-12A-2-Shin gle

092302461-0010

None DetectedMatrix

Non-fibrous (Other)

60%

25%

Glass15%Gray/Black

Fibrous

Homogeneous

ROOF SHINGLE -

SMALL 12

OVERHANG

606A-14425-12A-2-Tar

092302461-0010A

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Black

Non-Fibrous

Homogeneous

ROOF SHINGLE -

SMALL 12

OVERHANG

606A-14425-13A-1

092302461-0011

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Brown

Non-Fibrous

Homogeneous

CEILING TILE GLUE

606A-14425-13A-2

092302461-0012

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Brown

Non-Fibrous

Homogeneous

CEILING TILE GLUE

606A-14424-16A-1-Pain t 1

092302461-0013

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Gray

Non-Fibrous

Homogeneous

GRAY PAINT ON

WOOD

606A-14424-16A-1-Pain t 2

092302461-0013A

None DetectedMatrix

Non-fibrous (Other)

80%

20%

White

Non-Fibrous

Homogeneous

GRAY PAINT ON

WOOD

606A-14424-16A-2-Pain t 1

092302461-0014

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Gray

Non-Fibrous

Homogeneous

GRAY PAINT ON

WOOD

606A-14424-16A-2-Pain t 2

092302461-0014A

None DetectedMatrix

Non-fibrous (Other)

80%

20%

White

Non-Fibrous

Homogeneous

GRAY PAINT ON

WOOD

Analyst(s)

Xeena Paul (23) Cecilia Yu, Laboratory Manager or Other Approved Signatory

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received.

Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA 600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code 101048-3, WA C884

Report amended: 02/07/2023 07:43:03 Replaces initial report from: 02/01/2023 10:15:21 Reason Code: Client-Change to PO

Page 2 of 2ASB_PLM_0008_0001 - 1.78 Printed: 2/7/2023 7:43 AM

OrderID: 092302461

OrderID: 092302461

Tel/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com / sanleandrolab@emsl.com

092302573EMSL Order:

Customer ID: PSIK26

Customer PO:

Project ID:

Attention: Phone:Jerald Cook (510) 434-9200

Fax:PSI, Inc. (510) 434-7676

Received Date:4703 Tidewater Avenue 01/31/2023 10:45 AM

Analysis Date:Suite B 02/02/2023

Collected Date:Oakland, CA 94601 01/30/2023

Project:

Test Report: Asbestos Analysis of Bulk Materials via AHERA Method 40CFR 763 Subpart E

Appendix E supplemented with EPA 600/R-93/116 using Polarized Light Microscopy

Sample Description Appearance % Fibrous % Non-Fibrous

Non-Asbestos Asbestos

% Type

606A14414-12A-1-Barri er Paper

092302573-0001

None DetectedMatrix

Non-fibrous (Other)

10%

10%

Cellulose80%Brown

Fibrous

Homogeneous

BARRIER PAPER

606A14414-12A-1-Insul ation

092302573-0001A

None DetectedNon-fibrous (Other)5%Min. Wool95%Pink

Fibrous

Homogeneous

BARRIER PAPER

606A14424-12A-2-Barri er Paper

092302573-0002

None DetectedNon-fibrous (Other)5%Cellulose95%Brown

Fibrous

Homogeneous

BARRIER PAPER

606A14424-12A-2-Dryw all

092302573-0002A

None DetectedGypsum

Non-fibrous (Other)

80%

20%

White

Non-Fibrous

Homogeneous

BARRIER PAPER

606A14424-13A-1

092302573-0003

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Gray

Non-Fibrous

Homogeneous

WINDOW CAULKING

GREY

606A14424-13A-2

092302573-0004

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Gray

Non-Fibrous

Homogeneous

WINDOW CAULKING

GREY

606A14424-14A-1-Caul king

092302573-0005

None DetectedCa Carbonate

Matrix

Non-fibrous (Other)

15%

70%

15%

White

Non-Fibrous

Homogeneous

WHITE WINDOW

CAULKING

EXTERIOR

606A14424-14A-1-Dryw all

092302573-0005A

None DetectedGypsum

Non-fibrous (Other)

80%

20%

White

Non-Fibrous

Homogeneous

WHITE WINDOW

CAULKING

EXTERIOR

606A14424-14A-1-Plast er

092302573-0005B

None DetectedCa Carbonate

Gypsum

Non-fibrous (Other)

30%

40%

27%

Cellulose3%Gray/White

Non-Fibrous

Homogeneous

WHITE WINDOW

CAULKING

EXTERIOR

606A14424-14A-2-Caul king 1

092302573-0006

None DetectedCa Carbonate

Matrix

Non-fibrous (Other)

15%

70%

15%

White

Non-Fibrous

Homogeneous

WHITE WINDOW

CAULKING

EXTERIOR

606A14424-14A-2-Caul king 2

092302573-0006A

None DetectedMatrix

Non-fibrous (Other)

80%

20%

Clear

Non-Fibrous

Homogeneous

WHITE WINDOW

CAULKING

EXTERIOR

606A14424-15A-1

092302573-0007

None DetectedMatrix

Non-fibrous (Other)

70%

22%

Cellulose8%Black

Fibrous

Homogeneous

ROOF FLASHING

MASTIC

606A14424-15A-2

092302573-0008

None DetectedMatrix

Non-fibrous (Other)

80%

12%

Cellulose8%Black

Fibrous

Homogeneous

ROOF FLASHING

MASTIC

Initial report from: 02/02/2023 12:28:19

Page 1 of 2ASB_PLM_0008_0001 - 1.78 Printed: 2/2/2023 12:28 PM

Tel/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com / sanleandrolab@emsl.com

092302573EMSL Order:

Customer ID: PSIK26

Customer PO:

Project ID:

Analyst(s)

Karina Martinez (13) Cecilia Yu, Laboratory Manager or Other Approved Signatory

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received.

Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted. The above analyses were performed in general compliance with Appendix E to Subpart E of 40 CFR (previously EPA 600/M4-82-020 “Interim Method”) but augmented with procedures outlined in the 1993 (”final”) version of the method. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Estimation of uncertainty is available on request.

Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code 101048-3, WA C884

Initial report from: 02/02/2023 12:28:19

Page 2 of 2ASB_PLM_0008_0001 - 1.78 Printed: 2/2/2023 12:28 PM

OrderID: 092302573

OrderID: 092302573

APPENDIX D – LEAD LABORATORY RESULTS AND CHAIN OF CUSTODY

Client Sample Description ConcentrationLab ID Analyzed Weight Lead

Collected

EMSL Analytical, Inc 464 McCormick Street, San Leandro, CA 94577 Phone/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com sanleandrolab@emsl.com

Attn: Jerald Cook PSI, Inc.

4703 Tidewater Avenue Suite B Oakland, CA 94601

Received: 2/1/2023 10:45 AM

STINSON BEACH

Fax: (510) 434-7676 Phone: (510) 434-9200

Project:

Collected:

Test Report: Lead in Paint Chips by Flame AAS (SW 846 3050B/7000B)*

092302595 CustomerID: PSIK26 CustomerPO:

ProjectID:

EMSL Order:

0.2593 Site: TOWER EXTERIOR POST BLUE

092302595-0001GOGA-14424-L1 0.024 % wt2/1/2023 g

0.2563 Site: TOWER EXTERIOR SIDING BLUE

092302595-0002GOGA-14424-L2 <0.0080 % wt2/1/2023 g

0.2578 Site: BROWN PAINT METAL SIGN

092302595-0003GOGA-14424-L3 0.64 % wt2/1/2023 g

0.2501 Site: DK BLUE PAINT ON WOOD WINDOW TRIM

092302595-0004GOGA-14424-L4 <0.0080 % wt2/1/2023 g

0.2497 Site: WT PAINT ON EXT WINDOW TRIM METAL

092302595-0005GOGA-14424-L5 0.0083 % wt2/1/2023 g

0.2544 Site: BLUE PAINT ON METAL STAIR RAIL

092302595-0006GOGA-14424-L6 0.43 % wt2/1/2023 g

0.2509 Site: GREEN PAINT ON METAL FLASHING

092302595-0007GOGA-14424-L7 <0.0080 % wt2/1/2023 g

0.2522 Site: WT PAINT ON INTERIOR PANELS

092302595-0008GOGA-14424-L8 0.048 % wt2/1/2023 g

0.2508 Site: WT PAINT ON WOOD EXT TRIM

092302595-0009GOGA-14424-L9 <0.0080 % wt2/1/2023 g

Cecilia Yu, Laboratory Manager or other approved signatory

Test Report ChmSnglePrm/nQC-7.32.3 Printed: 2/1/2023 6:05:16 PM

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received.

Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted.

* Analysis following Lead in Paint by EMSL SOP/Determination of Environmental Lead by FLAA. Reporting limit is 0.008% wt based on the minimum sample weight per our SOP. "<" (less than) result signifies the analyte was not detected at or above the reporting limit. Measurement of uncertainty is available upon request. Definitions of modifications are available upon request.

Samples analyzed by EMSL Analytical, Inc San Leandro, CA AIHA LAP, LLC-ELLAP Accredited #101748

Initial report from 02/01/2023 18:05:16 http://www.EMSL.com mailto:sanleandrolab@emsl.com

OrderID: 092302595

OrderID: 092302595

Collected

EMSL Analytical, Inc 464 McCormick Street, San Leandro, CA 94577 Phone/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com sanleandrolab@emsl.com

Attn: Jerald Cook PSI, Inc.

4703 Tidewater Avenue Suite B Oakland, CA 94601

Received: 1/31/2023 10:45 AM

SANAK BAR

Fax: (510) 434-7676 Phone: (510) 434-9200

Project:

Collected:

Test Report: Lead in Paint Chips by Flame AAS (SW 846 3050B/7000B)*

092302590 CustomerID: PSIK26 CustomerPO:

ProjectID:

EMSL Order:

0.2485 Site: EXT WOOD SIDING - BLUE PAINT

092302590-0001GOGA-14425-L1 0.010 % wt2/1/2023 g

0.251 Site: WT PAINT ON EXT. WOOD TRIM

092302590-0002GOGA-14425-L2 0.023 % wt2/1/2023 g

0.2591 Site: WT PAINT ON INTERIOR WOOD TRIM

092302590-0003GOGA-14425-L3 <0.0080 % wt2/1/2023 g

0.2511 Site: BLANK PAINT ON WOOD DOOR

092302590-0004GOGA-14425-L4 0.022 % wt2/1/2023 g

0.2558 Site: WT PAINT ON WOOD SHELVES

092302590-0005GOGA-14425-L5 <0.0080 % wt2/1/2023 g

0.2541 Site: WT PAINT ON WOOD DOOR

092302590-0006GOGA-14425-L6 0.065 % wt2/1/2023 g

Cecilia Yu, Laboratory Manager or other approved signatory

Test Report ChmSnglePrm/nQC-7.32.3 Printed: 2/1/2023 5:06:26 PM

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received.

Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted.

* Analysis following Lead in Paint by EMSL SOP/Determination of Environmental Lead by FLAA. Reporting limit is 0.008% wt based on the minimum sample weight per our SOP. "<" (less than) result signifies the analyte was not detected at or above the reporting limit. Measurement of uncertainty is available upon request. Definitions of modifications are available upon request.

Samples analyzed by EMSL Analytical, Inc San Leandro, CA AIHA LAP, LLC-ELLAP Accredited #101748

Initial report from 02/01/2023 17:06:26

OrderID: 092302590

OrderID: 092302590

Collected

EMSL Analytical, Inc 464 McCormick Street, San Leandro, CA 94577 Phone/Fax: (510) 895-3675 / (510) 895-3680 http://www.EMSL.com sanleandrolab@emsl.com

Attn: Jerald Cook PSI, Inc.

4703 Tidewater Avenue Suite B Oakland, CA 94601

Received: 1/31/2023 10:45 AM

STINSON BEACH LIFE GUARD SHACK STAND

Fax: (510) 434-7676 Phone: (510) 434-9200

Project:

1/30/2023Collected:

Test Report: Lead in Soils by Flame AAS (SW 846 3050B/7000B)*

092302591 CustomerID: PSIK26 CustomerPO: 31800179.004 ProjectID:

EMSL Order:

0.5096092302591-0001606A-LEAD-N <40 mg/Kg2/2/2023 g1/30/2023 0.5045092302591-0002606A-LEAD-S <40 mg/Kg2/2/2023 g1/30/2023 0.5249092302591-0003606A-LEAD-E <40 mg/Kg2/2/2023 g1/30/2023 0.5354092302591-0004606A-LEAD-W <40 mg/Kg2/2/2023 g1/30/2023

Cecilia Yu, Laboratory Manager or other approved signatory

Test Report ChmSnglePrm/nQC-7.32.3 Printed: 2/2/2023 11:03:35 AM

EMSL maintains liability limited to cost of analysis. Interpretation and use of test results are the responsibility of the client. This report relates only to the samples reported above, and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. The report reflects the samples as received.

Results are generated from the field sampling data (sampling volumes and areas, locations, etc.) provided by the client on the Chain of Custody. Samples are within quality control criteria and met method specifications unless otherwise noted.

* Analysis following Lead in Soil/Solids by EMSL SOP/Determination of Environmental Lead by FLAA. Reporting limit is 40 mg/kg based on the minimum sample weight per our SOP. Unless noted, results in this report are not blank corrected. "<" (less than) result signifies that the analyte was not detected at or above the reporting limit. Measurement of uncertainty is available upon request. Definitions of

Samples analyzed by EMSL Analytical, Inc San Leandro, CA Method SW 846 7000B replaces EPA 7420 for lead analysis and is an equivalent method. CA ELAP 1628, AIHA LAP, LLC-ELLAP Accredited #101748

Initial report from 02/02/2023 11:03:35

O r d e r I D

P a g e f r d e r I D

P a g e f

GLUED-ON CEILING TILES

Sheetrock & ACM Joint Compound

Tar &…