SB Co-Mojave River Forks Restrooms-ASB-LBP-RPT.pdf

PDF 7 MB Posted Jan 20, 2026

Attached to: 1657 - Mojave River Forks Regional Park Restroom and Shower Replacement
Solicitation number: ANE223-ANE2C-6245
Issued by: San Bernardino County, El Paso De Robles (paso Robles) City, California

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Written by GovTribe AI · Jan 20, 2026

This is an Asbestos and Lead-Based Paint (LBP) Survey Report prepared by Converse Consultants for San Bernardino County's Project and Facilities Management Department regarding the Mojave River Forks Restrooms Replacement Project located at 17891 CA-173 in Hesperia, California. The non-destructive survey was conducted on July 24, 2025, and completed on August 6, 2025, covering three restroom structures (Sites 1, 2, and 3). The survey identified asbestos-containing materials (ACMs) and lead-containing materials (LCMs) present at the facilities to inform abatement requirements prior to demolition activities. All materials were observed to be in intact condition at the time of the survey, with no evidence of vandalism, fire, renovation, demolition, or structural damage.

The asbestos survey identified white vapor barrier paper containing 40% chrysotile asbestos at all three sites, located around water heater pipes in the ceiling areas, totaling approximately 11 square feet across the three structures. All other sampled materials, including plaster, mortar, concrete, and foundations, tested negative for asbestos. The lead-based paint survey detected LBP or LCMs on multiple interior and exterior components, with the highest concentrations found on porcelain sinks (25.6–31.0 mg/cm²), ceramic wall tiles (13.4–20.2 mg/cm²), and metal sinks (21.7–24.9 mg/cm²). All identified ACMs must be abated by a California-certified asbestos abatement contractor prior to demolition, and LCMs must be removed by a CDPH-licensed lead abatement contractor. Suspect materials not sampled during this initial survey, including ceramic tile grout, roofing materials, mirror mastics, caulking, and exterior stucco, will require sampling prior to demolition or must be assumed positive for asbestos and abated accordingly.

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

MAILING ADDRESS: 717 South Myrtle Avenue, Monrovia, CA 91016

8333 Foothill Boulevard, Suite 104, Rancho Cucamonga, California 91730 Telephone: (909) 796-0544 ♦ www.converseconsultants.com

August 6, 2025

Ms. Saretta Reed Project & Facilities Management Department San Bernardino County 620 South E Street San Bernardino, California 92415

Subject: ASBESTOS & LEAD-BASED PAINT SURVEY REPORT

Mojave River Forks Restrooms Replacement Project (Sites 1, 2 & 3)

17891 CA-173 (34.32876 N; 117.26553 W)

Hesperia, California Converse Project No. 22-16-180-26

Ms. Reed:

Provided is our report of the Asbestos & Lead-Based Paint (LBP) Survey completed on July 24, 2025 for the referenced site. Our work, which was a non-destructive survey, was completed in general accordance with our May 22, 2025.

The Scope of Services was completed by, or under the supervision, of the following Converse employees:

Name Asbestos Cert. No. CDPH Cert. No. Project Responsibility Contact

Number

Laura Cattaneo (LLC) CAC #92-0492 Sampling Tech

#11976

ASB Inspection & Sampling

Report Generation 818-642-5198

Norman Eke (NSE) CAC #96-2093 -- Report QA/QC 626-930-1260

Laura Tanaka (LAT) CAC #11-4708 Inspector/Assessor

#7879

LBP Survey Report Generation

Project Management 626-807-3422

All bulk asbestos samples were submitted and analyzed by following the laboratory:

• Eurofins Built Environment Testing (800-651-4802)

931 Corporate Center Drive, Pomona, CA 91768

NVLAP #600282-0

Copies of applicable staff and laboratory certifications have been attached to this letter.

San Bernardino County 17891 CA-173, Hesperia, California

August 6, 2025

ASBESTOS

Prior to sampling, Converse visually surveyed the interior and exterior of the structures for suspect asbestos-containing materials (ACMs) and homogeneous areas (areas that have uniform color, texture, and appearance). Each structure, or Site, was sampled independently from one another. Suspect materials were divided into friable (crushable to dust) and non-friable materials, and placed in one of the following Environmental Protection Agency (EPA) categories:

• Surfacing Materials (sprayed or troweled-on materials)

• Thermal Systems Insulations (materials generally applied to various mechanical systems)

• Miscellaneous Materials (any materials which do not fit in the above categories)

The strategy for the collection of asbestos samples was in general accordance with the EPA guidance document “Asbestos in Buildings: Simplified Sampling Scheme for Friable Surfacing Materials”, EPA 560/5-85-030a, October 1985, 40 CFR 763 (AHERA); National Exposure Standards for Hazardous Air Pollutants (NESHAP), 40 CFR Part 61; and South Coast Air Quality Management District, Rule 1403, Asbestos Emissions From Demolition/Renovation Activities, Amended October 5, 2007.

Bulk asbestos samples were collected of the following general types of materials:

• Plaster • Block mortar

• Concrete • Vapor barrier paper

The bulk samples were analyzed by Polarized Light Microscopy (PLM) in accordance with EPA Test Method 600/R-93/116. A summary of the types of suspect materials sampled along with the analytical results is presented in the following table.

Table 1 – Suspect Materials Sampled & Analytical Results Sample

No. Suspect Material % Asbestos Detected

Fri or NF Material

I or D Condition SF

Site 1 – Restroom structure located generally south of main entrance.

01-03 Plaster

ND (skim coat)

ND (plaster)

NF I 520

Comments: Located on ceiling of structure.

04-06 Block mortar ND NF I 1,000

Comments: Mortar to block walls of structure.

07-09 Concrete sidewalk ND NF I 500

Comments: Sidewalk surrounding structure.

Table 1 – Suspect Materials Sampled & Analytical Results Sample

No. Suspect Material % Asbestos Detected

Fri or NF Material

I or D Condition SF

10-12 Concrete building foundation ND NF I 520

Comments:

37-39

Vapor barrier paper, white 40% F I 4 Comments: Chrysotile asbestos detected in the material. Located around the water heater pipe in the ceiling. Opening cut out in ceiling and 4 square feet visible. Above water heater in ceiling.

Site 2 – Restroom structure located generally northeast of main entrance, and east of Site 3.

13-15 Plaster ceiling

Comments: Ceiling of structure.

16-18 CMU mortar ND NF I 1,000

Comments: Mortar to block walls of structure.

19-21 Sidewalk concrete ND NF I 500

Comments: Sidewalk surrounding structure.

34-36

Vapor barrier paper, white 40% F I 4 Comments: Chrysotile asbestos detected in material. Located around water heater pipe.

Observed 4 square feet through ceiling opening.

Site 3 - Restroom structure located generally north of main entrance.

22-24 CMS mortar ND NF I 1,000

Comments: Mortar to walls of the structure.

25-27 Sidewalk concrete ND NF I 500

Comments: Sidewalk surrounding the structure.

28-30 Plaster

Comments: Ceiling to structure.

31-33

Vapor barrier paper, white 40% F I 3 Comments: Chrysotile asbestos detected in material. Located around the water heater pipe in the ceiling. Opening cut out in ceiling and 3 square feet visible. Above water heater in ceiling.

Table 1 – Suspect Materials Sampled & Analytical Results Sample

No. Suspect Material % Asbestos Detected

Fri or NF Material

I or D Condition SF

Additional Comments:

The buildings were occupied at the time of the survey; therefore, this was a non-destructive survey. Suspect materials not sampled during this initial survey included:

• Ceramic tile grout and underlayment

• Roofing materials

• Mirror mastics

• Caulking

• Exterior stucco, and

• Additional concrete and mortar.

The laboratory may have identified additional layers or compounds within a sample under microscopic analysis that were not observed by the naked eye when the material was sampled in the field.

All materials were generally in good condition at the time of the survey. No obvious vandalism, fire, renovation, demolition or structural damage was observed.

The analytical report and chain of custody documentation are attached to this letter report.

A sample location map is also attached to this letter report.

Prior to demolition of the structures, the identified ACM (white vapor barrier paper) will need to be abated by a California certified asbestos abatement contractor using certified workers.

In addition, suspect materials not sampled and analyzed for asbestos content during the initial survey will need to sampled prior to demolition activities. If these materials are not sampled, the suspect materials can be assumed to be positive for asbestos and abated as such prior to the demolition activities.

LEAD-BASED PAINTS (LBPs) OR LEAD-CONTAINING MATERIALS (LCMs) Prior to sampling, Converse visually surveyed the interior and exterior of each Site for painted or ceramic building components. Our sampling methodology generally followed the “Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing” published by the Department of Housing and Urban Development (HUD) in 1995. However, similarly painted building components were treated as homogenous throughout each building.

The LBP Survey was conducted using a Viken Pb200i X-ray fluorescence (XRF) device.

The detection level for lead was set at 1.0 milligrams per square centimeter (mg/cm²).

Suspect components surveyed included:

LEGEND

Fri: Friable Material ND: None Detected

NF: Non-Friable Material I: Intact Condition

D: Damaged Condition SF: Square Footage

Interior Components Exterior Components

• Walls, floors and ceilings • Eaves

• Sinks, Toilets and Urinals • Pipes

• Cabinets • Doors and associated components

• Doors and associated components

• Partition walls and doors

Provided in Table 2 is a summary of the LBPs and LCMs detected during this survey. All materials were observed to be in intact condition at the time of the survey.

The XRF Summary Table is attached to this letter report. This table provides a complete list of the components surveyed.

If the lead-containing materials are removed in one piece (intact, no damage), the materials may be disposed of as construction debris. If the materials are damaged during the removal process, the items will need to be disposed of as lead waste, and the waste stream will need to be characterized.

The LCM abatement must be performed by a CDPH licensed lead abatement contractor using workers that have undergone the necessary lead training and are CDPH certified.

Converse further recommends that the lead abatement activities be monitored by an independent third party or consultant knowledgeable in lead abatement procedures and is at a minimum, a CDPH certified Lead Project Monitor.

Although other painted and/or ceramic materials did not meet the criteria for LBP or LCM, concentrations of lead were detected in these materials. Title 8 CCR 1532.1 (Cal/OSHA Lead regulation) may require workers that perform work that disturbs the LBPs or LCMs such as manual demolition, manual scraping, sanding of painted surfaces, etc. to undergo an exposure assessment including, but not limited to, air monitoring of the breathing zone.

Other requirements including training and medical surveillance may be necessary per the lead regulation. Employers are responsible for worker exposure in relation to lead.

Table 2 – Summary of LBPs and LCMs

Building Component Paint Color Lead Conc.

(mg/cm2) Comments

Interior metal sinks White 21.7 – 24.9 Located in the Laundry Rooms at Site 1, 2 & 3.

Metal doors and door frames

Brown Light Brown

Beige Orange (door only)

1 – 2.4

Doors and door frames at Site 1, 2 & 3.

Site 3 – only the orange door is LBP.

Orange door frame is not a LBP.

Interior ceramic wall and baseboard tiles Yellow 13.4 – 20.2 Wall and baseboard ceramic tiles at Site

1, 2 & 3.

Interior porcelain sinks White 25.6 - 31 Sinks in Men’s and Women’s restrooms at Site 1, 2 & 3.

In the event that suspect LBPs are observed during the demolition activities that were not previously sampled, these materials should be assumed to contain lead in concentrations exceeding 1.0 mg/cm2, until such time that they can be sampled and evaluated for lead content.

CLOSURE

This report is for the sole benefit and exclusive use of San Bernardino County (herein referred to as Client) in accordance with the terms and conditions of our contract under which these services have been provided. Its preparation has been in accordance with generally accepted environmental practices. No other warranty, either express or implied, is made. The Scope of Services associated with the report was designed solely in accordance with the objectives, schedule, budget, and risk-management preferences of Client.

This letter report should not be regarded as a guarantee that no further ACMs or LBPs, beyond that which could be detected within the scope of this survey, are present at the property. Converse makes no warranties or guarantees as to the accuracy or completeness of information provided or compiled by others. It is not possible to absolutely confirm that no ACMs or LBPs exist at the property. If none are identified as part of a limited scope of work, such a conclusion should not be construed as a guaranteed absence of such materials, but merely the results of the evaluation of the property at the time of the survey.

Also, events may occur after the survey, which may result in contamination of the property.

Additional information, which was not found or available to Converse at the time of report preparation, may result in a modification of the conclusions and recommendations presented.

Any reliance on this report by Third Parties shall be at the Third Party’s sole risk.

We appreciate the opportunity to be of service to you. If you should have any questions or comments regarding the results, please contact Laura Tanaka at (626) 930-1261 or Norman Eke at (626) 930-1260.

CONVERSE CONSULTANTS

Laura Tanaka Norman S. Eke CDPH Inspector/Assessor, #7879 Certified Asbestos Consultant, #96-2093 Principal Environmental Scientist Managing Officer/COB

Attached: Certifications

Asbestos - Analytical Report & Sample Location Maps LBPs/LCMs – XRF Summary Table

Certifications Converse Staff & Laboratory

U ni te d

St at es D ep ar tm en t o f C om m er ce

N at io na l I ns tit ut e of S ta nd ar ds a nd

T ec hn ol og y

C er tif ic at e of A cc re di ta tio n to

/IE

N V

L A

P L

A B

C O

D E

: 6

E ur of in s B ui lt E nv ir on m en t T es tin g W es t-

P om on a, C A

Po m on a, C A is a cc re di te d by th e

N at io na l V ol un ta ry L ab or at or y A cc re di ta tio n

P ro gr am fo r s pe ci fic s er vi ce s, lis te d on th e S co pe o f A cc re di ta tio n, fo r:

A sb es to s F ib er A na ly si s

-0 7-th ro ug h

-0

E ffe ct iv e D at es

Fo r t he N at io na l V ol un ta ry

L ab or at or y

A cc re di ta tio n P ro gr am

Th is la bo ra to ry is a cc re di te d in a cc or da nc e w ith th e re co gn iz ed

In te rn at io na l S ta nd ar d

/IE

Th is a cc re di ta tio n de m on st ra te s te ch ni ca l c om pe te nc e fo r a d ef in ed s co pe a nd th e op er at io n of a la bo ra to ry q ua lit y m an ag em en t s ys te m

(r ef er to jo in t I S

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SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017

For the National Voluntary Laboratory Accreditation Program

Effective

National Voluntary Laboratory Accreditation Program

2025-07-01 through 2026-06-30

Eurofins Built Environment Testing West- Pomona, CA 931 Corporate Center Drive

Pomona, CA 91768 Quynh Nguyen

Phone: 800-651-4802 Email: quynh.nguyen@et.eurofinsus.com https://www.eurofinsus.com/environment-testing/built-environment

ASBESTOS FIBER ANALYSIS NVLAP LAB CODE 600282-0

Bulk Asbestos Analysis

Code Description 18/A01 EPA -- 40 CFR Appendix E to Subpart E of Part 763, Interim Method of the Determination of

Asbestos in Bulk Insulation Samples

18/A03 EPA 600/R-93/116: Method for the Determination of Asbestos in Bulk Building Materials

Asbestos Analytical Report & Chain of Custody

Sample Location Map

Approved by:

Approved Signatory Peter Mai

Report for:

Ms. Laura Tanaka Converse Consultants, Monrovia & Costa Mesa 717 S. Myrtle Avenue Monrovia, CA 91016

Regarding:

Eurofins Built Environment Testing West, LLC Project: 22-16-180-26; 17891 CA-173 Hesperia

EML ID: 4160278

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 Built Environment Testing West, 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: 07-31-2025

Service SOPs: Asbestos PLM (EPA 40CFR App E to Sub E of Part 763 & EPA METHOD 600/R-93-116, SOP EB-AS-S-1267) NVLAP Lab Code 600282-0

EMLab ID: 4160278, Page 1 of 26Eurofins Built Environment Testing West, LLC

Eurofins Built Environment Testing West, LLC

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Total Samples Submitted: 39 Total Samples Analyzed: 39

Total Samples with Layer Asbestos Content > 1%: 9

Location: 01, [Plaster] Site 1-RR - Storage Room - SEC Lab ID-Version‡: 20782528-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster ND Sample Composite Homogeneity: Good

Location: 02, [Plaster] Site 1-RR - Water Heater Room - SWC Lab ID-Version‡: 20782529-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster ND Sample Composite Homogeneity: Good

Location: 03, [Plaster] Site 1-RR - Men's Restroom - NWC Lab ID-Version‡: 20782530-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster ND Sample Composite Homogeneity: Good

Location: 04, [Black Mortar] Site 1 RR - SWC Lab ID-Version‡: 20782531-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 2 of 26Eurofins Built Environment Testing West, 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 NVLAP, NIST, or 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.

All components not quantified as asbestos content and non-asbestos content are considered to be non-fibrous matrix components. Matrix components may include, but are not limited to, gypsum, paint, silicate minerals, vinyl, binder, calcium carbonate, tar, and foam.

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".

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 05, [Black Mortar] Site 1 RR - Privacy Wall East - SEC Lab ID-Version‡: 20782532-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 06, [Black Mortar] Site 1 RR - Men's Restroom - West Wall Lab ID-Version‡: 20782533-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 07, [Concrete Sidewalk] Men's Restroom - Site 1 - RR Lab ID-Version‡: 20782534-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 08, [Concrete Sidewalk] Women's Restroom - Site 1 - RR Lab ID-Version‡: 20782535-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 3 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 09, [Concrete Sidewalk] SEC - Site 1 - RR Lab ID-Version‡: 20782536-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 10, [Building Foundation] Site1 RR - North Side Lab ID-Version‡: 20782537-1

Sample Layers Asbestos Content Gray Rock (Building Foundation) ND

Sample Composite Homogeneity: Good

Location: 11, [Building Foundation] Site1 RR - East Side Lab ID-Version‡: 20782538-1

Sample Layers Asbestos Content Gray Rock (Building Foundation) ND

Sample Composite Homogeneity: Good

Location: 12, [Building Foundation] Site1 RR - West Side Lab ID-Version‡: 20782539-1

Sample Layers Asbestos Content Gray Rock (Building Foundation) ND

Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 4 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 13, [Plaster Ceiling] Site 2 RR - Men's Restroom, West Lab ID-Version‡: 20782540-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster Ceiling ND Sample Composite Homogeneity: Good

Location: 14, [Plaster Ceiling] Site 2 RR - Storage Room - Floor Lab ID-Version‡: 20782541-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster Ceiling ND Sample Composite Homogeneity: Good

Location: 15, [Plaster Ceiling] Site 2 RR - Women's Restroom, East Lab ID-Version‡: 20782542-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster Ceiling ND Sample Composite Homogeneity: Good

Location: 16, [CMU Mortar] Site 2 - RR - South Privacy Wall, SWC Lab ID-Version‡: 20782543-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 5 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 17, [CMU Mortar] Site 2 - RR - NWC Lab ID-Version‡: 20782544-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 18, [CMU Mortar] Site 2 - RR - North Privacy Wall Lab ID-Version‡: 20782545-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 19, [Sidewalk Concrete] Site 2 RR - SWC Lab ID-Version‡: 20782546-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 20, [Sidewalk Concrete] Site 2 RR - NWC Lab ID-Version‡: 20782547-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 6 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 21, [Sidewalk Concrete] Site 2 RR - NEC Lab ID-Version‡: 20782548-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 22, [CMU Mortar] Site 3-RR - NWC Lab ID-Version‡: 20782549-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 23, [CMU Mortar] Site 3-RR - Privacy Wall - Women's SEC Lab ID-Version‡: 20782550-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

Location: 24, [CMU Mortar] Site 3-RR - South Wall, East of Storage Lab ID-Version‡: 20782551-1

Sample Layers Asbestos Content Gray Mortar ND

Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 7 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 25, [Sidewalk Concrete] Site 3 - RR - SWC Lab ID-Version‡: 20782552-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 26, [Sidewalk Concrete] Site 3 - RR - SEC Lab ID-Version‡: 20782553-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 27, [Sidewalk Concrete] Site 3 - RR - West Side Lab ID-Version‡: 20782554-1

Sample Layers Asbestos Content Gray Concrete ND

Sample Composite Homogeneity: Good

Location: 28, [Plaster] Site 3 - RR - Men's Restroom, NWC Lab ID-Version‡: 20782555-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster ND Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 8 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 29, [Plaster] Site 3 - RR - Women's Restroom, NEC Lab ID-Version‡: 20782556-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster ND Sample Composite Homogeneity: Good

Location: 30, [Plaster] Site 3 - RR - Water Heater Room NWC Lab ID-Version‡: 20782557-1

Sample Layers Asbestos Content White Skim Coat ND

Gray Plaster ND Sample Composite Homogeneity: Good

Location: 31, [Vapor Barrier Paper (White)] Site 3 RR - Water Heater Ceiling Pipe Opening, South Lab ID-Version‡: 20782558-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

Location: 32, [Vapor Barrier Paper (White)] Site 3 RR - Water Heater Ceiling Pipe Opening, South Lab ID-Version‡: 20782559-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 9 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 33, [Vapor Barrier Paper (White)] Site 3 RR - Water Heater Ceiling Pipe Opening, East Lab ID-Version‡: 20782560-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

Location: 34, [Vapor Barrier Paper, White] Boiler Room Lab ID-Version‡: 20782561-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

Location: 35, [Vapor Barrier Paper, White] Boiler Room Lab ID-Version‡: 20782562-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

Location: 36, [Vapor Barrier Paper, White] Boiler Room Lab ID-Version‡: 20782563-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 10 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

Location: 37, [Vapor Barrier Paper (White)] Site 1 RR - Water Heater Room Lab ID-Version‡: 20782564-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

Location: 38, [Vapor Barrier Paper (White)] Site 1 RR - Water Heater Room Lab ID-Version‡: 20782565-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

Location: 39, [Vapor Barrier Paper (White)] Site 1 RR - Water Heater Room Lab ID-Version‡: 20782566-1

Sample Layers Asbestos Content White Vapor Barrier Paper 40% Chrysotile

Composite Non-Asbestos Content: 40% Cellulose Sample Composite Homogeneity: Good

EMLab ID: 4160278, Page 11 of 26Eurofins Built Environment Testing West, LLC

‡ 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

(833) 465-5857 www.eurofinsus.com/BuiltClient: Converse Consultants, Monrovia & Costa Mesa C/O: Ms. Laura Tanaka Re: 22-16-180-26; 17891 CA-173 Hesperia

Date of Sampling: 07-24-2025 Date of Receipt: 07-24-2025 Date of Report: 07-31-2025

ASBESTOS PLM REPORT

PROJECT ANALYST AND SIGNATORY REPORT

Project Analyst

‡ 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".

Analyst: Vivian Le

EMLab ID: 4160278, Page 12 of 26Eurofins Built Environment Testing West, LLC

SITE 1

SITE 2SITE 3

LBP / LCM

XRF Summary Table

Survey Date: 07-24-25

CDPH Inspect/Assessor: L Tanaka, #7879 XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Reading

No.

Site No.

Interior/

Exterior Room Component

Component

Comment Substrate Side Color Condition

Pb Conc.

(mg/cm

Result

1 1.2 Positive

2 1.1 Positive

3 1.2 Positive

4 Site 1 Interior Water Heater Room Wall CMU North Yellow Intact 0.1 Negative

5 Site 1 Interior Water Heater Room Ceiling Plaster beige Intact -0.1 Negative

6 Site 1 Interior Laundry Room sink Metal White Intact 22.6 Positive

7 Site 1 Interior Laundry Room Wall cmu West Yellow Intact 0.2 Negative

8 Site 1 Interior Laundry Room Cabinets Metal North Yellow Intact 0.4 Negative

9 Site 1 Interior Laundry Room Door Metal South Brown Intact 0.6 Negative

10 Site 1 Interior Laundry Room Door Frame Metal South Brown Intact 1 Positive

11 Site 1 Exterior Door Frame Metal South Brown Intact 1.2 Positive

12 Site 1 Exterior Door Metal South Brown Intact 1.6 Positive

13 Site 1 Exterior Pipe Metal South Brown Intact 0.3 Negative

14 Site 1 Exterior Eaves Stucco West White Intact -0.1 Negative

15 Site 1 Interior Mens Restroom Door Metal West Lt-Brown Intact 0.8 Negative

16 Site 1 Interior Mens Restroom Door Frame Metal West Lt-Brown Intact 1.4 Positive

17 Site 1 Interior Mens Restroom partion Metal Lt-Brown Intact 0.2 Negative

18 Site 1 Interior Mens Restroom Wall Brick West White Intact 0.3 Negative

19 Site 1 Interior Mens Restroom Wall Ceramic West Yellow Intact 15.4 Positive

20 Site 1 Interior Mens Restroom Floor Ceramic Multi-Colored Intact 0.4 Negative

21 Site 1 Interior Mens Restroom sink Porcelain White Intact 31 Positive

22 Site 1 Interior Mens Restroom Toilet Porcelain White Intact 0 Negative

23 Site 1 Interior Mens Restroom Urinal Porcelain White Intact 0.1 Negative

24 Site 1 Interior Womens Restroom Door Metal Brown Intact 0.6 Negative

25 Site 1 Interior Womens Restroom Door Frame Metal Brown Intact 1.6 Positive

26 Site 1 Interior Womens Restroom Wall Ceramic East Yellow Intact 13.4 Positive

27 Site 1 Interior Womens Restroom Wall cmu East White Intact 0.1 Negative

28 Site 1 Interior Womens Restroom Wall cmu East White Intact 0.1 Negative

29 Site 1 Interior Womens Restroom partion Wood Gray Intact -0.3 Negative

30 Site 1 Interior Womens Restroom partion Drywall Gray Intact 0 Negative

31 Site 1 Interior Womens Restroom Floor Ceramic Multi-Colored Intact 0.2 Negative

32 Site 1 Interior Womens Restroom sink Porcelain White Intact 28.2 Positive

33 Site 1 Interior Womens Restroom Toilet Porcelain White Intact -0.3 Negative

Calibration Check

Calibrationc

Converse Project No. 22-16-180-26 1

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Reading

No.

Site No.

Interior/

Exterior Room Component

Component

Comment Substrate Side Color Condition

Pb Conc.

(mg/cm

Result

Calibration Check34 Site 1 Interior Womens Restroom Ceiling Plaster Off White Intact -0.3 Negative

35 1.1 Positive

36 1.1 Positive

37 1.1 Positive

38 Site 2 Interior Womens Restroom Door Metal East beige Intact 1.7 Positive

39 Site 2 Interior Womens Restroom Door Frame Metal East beige Intact 2.4 Positive

40 Site 2 Interior Womens Restroom Wall Ceramic South Yellow Intact 15.4 Positive

41 Site 2 Interior Womens Restroom Wall cmu South Yellow Intact 0.2 Negative

42 Site 2 Interior Womens Restroom Sink Porcelain South White Intact 31 Positive

43 Site 2 Interior Womens Restroom Toilet Porcelain White Intact 0.2 Negative

44 Site 2 Interior Womens Restroom partition Wood beige Intact 0.2 Negative

45 Site 2 Interior Womens Restroom partition Metal beige Intact 0 Negative

46 Site 2 Interior Womens Restroom Room Floor Ceramic Multi-Colored Intact 0.3 Negative

47 Site 2 Interior Womens Restroom Room Ceiling Plaster White Intact -0.1 Negative

48 Site 2 Interior Laundry Room Door Metal South Brown Intact 0.3 Negative

49 Site 2 Interior Laundry Room Door Frame Metal South Brown Intact 0.6 Negative

50 Site 2 Interior Laundry Room Sink Metal White Intact 24.9 Positive

51 Site 2 Interior Laundry Room Pipe Metal East Brown Intact 0.2 Negative

52 Site 2 Interior Laundry Room Wall cmu North Yellow Intact 0 Negative

53 Site 2 Exterior Door Metal South Brown Intact 1.6 Positive

54 Site 2 Exterior Door Frame Metal South Brown Intact 1.3 Positive

55 Site 2 Interior Mens Restroom Door Frame Metal West beige Intact 1.6 Positive

56 Site 2 Interior Mens Restroom Door Metal West beige Intact 1.5 Positive

57 Site 2 Interior Mens Restroom sink Porcelain White Intact 28.6 Positive

58 Site 2 Interior Mens Restroom Wall cmu Yellow Intact 0 Negative

59 Site 2 Interior Mens Restroom Wall Ceramic Yellow Intact 17.1 Positive

60 Site 2 Interior Mens Restroom partition Metal Yellow Intact -0.1 Negative

61 Site 2 Interior Mens Restroom partition Wood Yellow Intact 0 Negative

62 Site 2 Interior Mens Restroom Floor Ceramic Multi-Colored Intact -0.1 Negative

63 Site 2 Interior Mens Restroom Urinal Porcelain White Intact 0 Negative

64 Site 2 Interior Mens Restroom Toilet Porcelain White Intact -0.2 Negative

65 Site 2 Interior Mens Restroom Ceiling Plaster White Intact 0.1 Negative

Calibration Check

Converse Project No. 22-16-180-26 2

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Reading

No.

Site No.

Interior/

Exterior Room Component

Component

Comment Substrate Side Color Condition

Pb Conc.

(mg/cm

Result

Calibration Check66 1 Positive

67 0.9 Negative

68 1.1 Positive

69 Site 3 Interior Mens Restroom Door Metal West beige Intact 0.6 Negative

70 Site 3 Interior Mens Restroom Door Frame Metal West beige Intact 1.2 Positive

71 Site 3 Interior Mens Restroom Wall Brick West Yellow Intact 0.2 Negative

72 Site 3 Interior Mens Restroom Wall Ceramic West Yellow Intact 20.2 Positive

73 Site 3 Interior Mens Restroom partition Metal beige Intact -0.1 Negative

74 Site 3 Interior Mens Restroom partition Wood beige Intact 0 Negative

75 Site 3 Interior Mens Restroom Floor Ceramic Multi-Colored Intact -0.1 Negative

76 Site 3 Interior Mens Restroom sink Porcelain White Intact 25.6 Positive

77 Site 3 Interior Mens Restroom Wall CMU Off White Intact 0.2 Negative

78 Site 3 Interior Mens Restroom Toilet Porcelain White Intact 0.1 Negative

79 Site 3 Interior Mens Restroom Urinal Porcelain White Intact 0.2 Negative

80 Site 3 Interior Mens Restroom Ceiling Plaster Off White Intact -0.1 Negative

81 Site 3 Exterior Wall Stucco North White Intact 0.2 Negative

82 Site 3 Interior Womens Restroom Wall Ceramic West Yellow Intact 16.4 Positive

83 Site 3 Interior Womens Restroom Wall CMU West Yellow Intact 0.1 Negative

84 Site 3 Interior Womens Restroom Wall Brick East White Intact 0.2 Negative

85 Site 3 Interior Womens Restroom partition Metal beige Intact -0.2 Negative

86 Site 3 Interior Womens Restroom partition Wood beige Intact -0.2 Negative

87 Site 3 Interior Womens Restroom Baseboard Ceramic Yellow Intact 17.5 Positive

88 Site 3 Interior Womens Restroom Floor Ceramic Multi-Colored Intact -0.1 Negative

89 Site 3 Interior Womens Restroom Door Metal beige Intact 0.2 Negative

90 Site 3 Interior Womens Restroom Door Frame Metal beige Intact 0.4 Negative

91 Site 3 Exterior Door Frame Metal orange Intact -0.1 Negative

92 Site 3 Exterior Door Metal orange Intact 1.6 Positive

93 Site 3 Interior Door Frame Metal beige Intact 0.4 Negative

94 Site 3 Interior Laundry Room sink Metal White Intact 21.7 Positive

95 Site 3 Interior Laundry Room Wall CMU Yellow Intact 0.2 Negative

96 Site 3 Exterior Pipes Misc Metal South Yellow Intact 0.8 Negative

97 Site 3 Interior Water Heater Room Door Metal South Brown Intact 0.1 Negative

98 Site 3 Interior Water Heater Room Door Frame Metal South Brown Intact 0.5 Negative

Calibration Check

Converse Project No. 22-16-180-26 3

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Reading

No.

Site No.

Interior/

Exterior Room Component

Component

Comment Substrate Side Color Condition

Pb Conc.

(mg/cm

Result

Calibration Check99 Site 3 Interior Water Heater Room Wall CMU East Yellow Intact 0.2 Negative

100 1.1 Positive

101 1.1 Positive

102 1.1 PositiveCalibration Check

Calibration Check

Converse Project No. 22-16-180-26 4

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 5

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 6

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 7

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 8

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 9

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 10

XRF Summary Table

Mojave River Forks Restroons 1-3

17891 CA-173, Hesperia, CA

Viken XRF Pb200e

Action Level: 1.0 mg/cm

Converse Project No. 22-16-180-26 11

XRF…

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