ATTACHMENT_05_-_140P8625Q0074_-_EXISTING_HAZ_MAT_REPORTS_-_APR_2022_docx.pdf

Limited Asbestos Sampling, Paint Chip Sampling and Dust Wipe Sampling for

Metals Building T-1111

Bunker Road Golden Gate National Recreation Area

Sausalito, California

United States National Park Service

201 Fort Mason San Francisco, California 94123

April 4, 2022 | Project No. 402504015

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

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

2020 Challenger Drive, Suite 103 | Alameda, California 94501 | p. 510.343.3000 | www.ninyoandmoore.com

April 4, 2022 Project No. 402504015

Mr. James Melbostad Project Manager/COR/CCR Golden Gate National Recreation Area 201 Fort Mason San Francisco, California 94123

Subject: Limited Asbestos Sampling, Paint Chip Sampling and Dust Wipe Sampling for Metals Building T-1111 Bunker Road United States National Park Service Golden Gate National Recreation Area Sausalito, California 94129

Dear Mr. Melbostad:

In accordance with the United States National Park Service’s (NPS/Client) request, Ninyo &

Moore has performed limited suspect bulk asbestos sampling, paint chip sampling and surface dust wipe sampling for metals at Building T-1111 along Bunker Road in Sausalito, California (site, Figures 1 and 2). Building T-1111 is currently used as a storage facility for various service areas

(NPS police evidence, plumbing, mechanical, electric, etc.) of the NPS within the Golden Gate

National Recreation Area (GGNRA). Basic equipment (ladders, chairs, etc.), new/old/recycled supplies, powered light machinery (sprayers, pumps, etc.), paint, fluorescent lights, and other supplies were observed stored within Building T-1111.

The following report presents a description of sampling activities, reported analytical results, sample location figures and our findings and conclusions. This report has been prepared for the

NPS in accordance with generally-accepted industrial hygiene, environmental science, and engineering practices. This report is based upon conditions at Building T-1111 at the time of the sampling activities. Professional certifications of Ninyo & Moore personnel are included in

Attachment A.

Ninyo & Moore | Building T-1111, Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022 2

PAST SAMPLING REPORTS

The Client provided Ninyo & Moore with the Asbestos-Containing Materials Survey Report for

National Park Service, United States Department of the Interior, Golden Gate National Recreation

Area, San Francisco, California, prepared by Mactec Engineering and Consulting, Inc., in

September of 2012 (Mactec 2012 Report). The Mactec 2012 Report is a summary of Mactec’s

2012 suspect asbestos-containing materials (ACMs) sampling efforts related to all NPS GGNRA facilities. Ninyo & Moore reviewed the sampling and analytical results related to Building T-1111.

The suspect ACMs sampled and analyzed in the Mactec 2012 Report were brown fiberboard, white window glazing, red roof shingles, white wallboard and white wallboard joint compound.

These five suspect ACMs were reported as non-detect for asbestos. Red rolled roofing (another suspect ACM) was not analyzed and is assumed to contain asbestos. Additionally, the Mactec

2012 Report was not a complete survey and other potential ACMs may remain in Building T-1111.

No past sampling reports related to wipe sampling for metals or paint (chip) sampling were provided for review.

SUSPECT ASBESTOS AND PAINT CHIP SAMPLING AND ANALYSIS

Asbestos

Ninyo & Moore personnel sampled only the brown fiberboard during these sampling activities

(Table 1). The sample was sent to EMSL Analytical, Inc. (EMSL) of San Leandro, California for analysis of asbestos content (EPA Method 600/R-93/116). Analytical results associated with the limited asbestos sampling activities are included in Attachment B. Sampling locations are shown on Figure 3.

Paint

Ninyo & Moore personnel also collected five exterior paint chip samples (Table 2). These samples were sent to EMSL for analysis of lead content (Flame AAS, SW 846 3050B/7000B). Analytical results associated with the limited paint chip sampling activities are included in Attachment C.

Sampling locations are shown on Figure 3. A copy of the State of California Department of Public

Health (CDPH) form 8552 (“Lead Hazard Evaluation Report”) for the site building is included in

Attachment D.

WIPE SAMPLING ACTIVITIES AND ANALYSIS

Ninyo & Moore collected a total of 38 surface wipe samples on December 21, 2021 and December

29, 2021 from various floor areas throughout Building T-1111 (Figure 3). At the Client’s request, 14 of the 19 wipe samples collected on December 21, 2021 were analyzed for metals via

Ninyo & Moore | Building T-1111, Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022 3

Resource Recovery and Conservation Act (RCRA) Method 6010D/7471B. The other five wipe samples collected on December 21, 2021 were analyzed for metals via California Title 22 metals

(CAM 17) protocols. The 19 wipe samples collected on December 29, 2021 were analyzed for mercury via OSHA Method ID-145. The following metals were analyzed as part of this effort:

antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, molybdenum, nickel, selenium, silver, thallium, vanadium and zinc. Analytical results associated with the RCRA wipe sampling activities are included in Attachment E.

Ninyo & Moore reviewed the widely-referenced Brookhaven National Laboratory (BNL) Document

No. IH75190, “Surface Wipe Sampling for Metals”, for both wipe sampling protocols as well as guidance in determining potential areas of elevated metals concentrations within Building T-1111.

Analytical results associated with the wipe sampling activities for mercury are included in

Attachment F.

ANALYTICAL RESULTS

Asbestos

The lone bulk asbestos sample collected was reported as non-detect for asbestos.

Paint

Gray exterior wall paint (samples 1221-01P and 1221-05P) was reported with lead concentrations from 0.13% by weight (or 1,300 milligrams per kilogram [mg/kg]) to 2.7% by weight (or 27,000 mg/kg). Gray paint from a fascia board on a northeast loading dock (samples 1221-04P) was reported to have a lead concentration of 0.0096% by weight (or 96 mg/kg). The other two paint chip samples (1221-02P and 1221-03P) were reported to contain lead at less than their associated limits of detection.

Wipe Sampling

Based upon the reported analytical results associated with the December 21, 2022 and December

29, 2022 sampling events, 15 metals were reported at, or above, their reporting limits. Beryllium and thallium were not detected.

Chromium was reported at greater than 31 micrograms per square foot (31 μg/ft2, the BNL guidance action level for floors) in nine of the 19 wipe samples analyzed. The reported chromium concentrations varied from 11 μg/ft2 (samples 1221-09W and 1221-11W) to 78 μg/ft2 (sample

1221-10W).

Ninyo & Moore | Building T-1111, Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022 4

Lead concentrations were reported at concentrations greater than 10 μg/ft2 (EPA and CDPH Dust

Hazard Action Level for interior floors) in all 19 samples. The reported lead concentrations varied from 37 μg/ft2 (sample 1221-16W) to 440 μg/ft2 (sample 1221-08W).

Mercury was detected above laboratory detection limits in 18 of 19 samples collected. The reported mercury concentrations varied from 0.064 μg/ft2 (sample 1229-02M) to 0.49 μg/ft2

(sample 1229-015M). One sample (1229-06M) was reported at less than its associated limit of detection (<0.050 μg/ft2).

FINDINGS

Asbestos

Based upon our review of the Mactec 2012 Report and the analytical results associated with our limited bulk asbestos sampling at Building T-1111, we believe that the planned sprinkler installation activities will not impact any ACMs.

Paint

Based upon the analytical results associated with our limited paint chip sampling at Building T-

1111, we feel that the sprinkler installation contractor will have to assume that the planned scope of work will impact lead-based paint (LBP) and/or lead-containing paint (LCP).

Wipe Sampling

Based upon the reported analytical results associated with our wipe sampling activities, 15 metals were reported at, or above, their reporting limits. Beryllium and thallium were not detected.

Chromium was reported at greater than 31 μg/ft2 in nine of the 19 wipe samples analyzed. Lead concentrations exceeding the EPA and CDPH action levels are present throughout Building T-

1111. Similarly, mercury was also detected above laboratory detection limits throughout the building (in 18 of the 19 samples collected). Lead is the prominent contaminant of concern and protection against lead exposure including engineering and/or administrative controls and personal protective equipment is expected to adequately protect against all other metals potentially present.

RECOMMENDATIONS

Based upon the reported analytical results and findings of this report, the following recommendations are provided for future work within Building T-1111:

Ninyo & Moore | Building T-1111, Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022 5

Contractors performing work in Building T-1111 should assume that the painted surfaces to be disturbed by the sprinkler installation are either LBP or LCP. It should also be assumed that dust associated with surfaces that will be disturbed contains lead and other various metals that will require specific monitoring and controls prior to obtaining the results of a negative exposure assessment for lead.

Contractors are required to comply with California Code of Regulations Title 8, Section

§1532.1 during the course of all activities. As such, workers must receive appropriate training and initial protection prior to obtaining the results of negative exposure assessment sampling. If through these monitoring activities, it is ascertained that the specific scope of work does not expose the workers to lead above the Action Level

(AL) or Permissible Exposure Limit (PEL), then many of the requirements can be reduced in accordance with 8CCR §1532.1.

LIMITATIONS

The environmental services described in this report have been conducted in general accordance with current regulatory guidelines and the standard-of-care exercised by environmental consultants performing similar work in the project area. No other warranty, expressed or implied, is made regarding the professional opinions presented in this report.

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

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

This report is intended exclusively for use by the Client. Any use or reuse of the findings or conclusions of this report by parties other than the Client is undertaken at said parties’ sole risk.

Ninyo & Moore | Building T-1111, Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022 6

Respectfully submitted, NINYO & MOORE

William P. Larkin Principal Environmental Scientist DOSH Certified Asbestos Consultant (No. 99-2688) CDPH Certified Lead Inspector/Assessor and Project Monitor (Nos. 1284/1285)

WPL

Attachments: Table 1 – Bulk Asbestos Sampling Results Table 2 – Lead-Containing Material Sampling Results Figure 1 – Site Location Figure 2 – Site Vicinity Figure 3 – Sample Locations Attachment A – Certifications Attachment B – Asbestos Laboratory Analytical Report and Chain-of-Custody Records Attachment C – Lead-Containing Material Laboratory Analytical Report and Chain-of-Custody Records Attachment D – CDPH Form 8552 - Lead Hazard Evaluation Report Attachment E – RCRA 8/CAM 17 Metals Wipe Sampling Analytical Results and Chain-of-Custody Documentation (Except Mercury) Attachment F – Mercury Wipe Sampling Analytical Results and Chain-of-Custody Documentation

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Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

Appendix A

Photographic Documentation

ATTACHMENT A

Certifications

Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

ATTACHMENT B

Asbestos Laboratory Analytical Report and Chain-of- Custody Records

Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

ATTACHMENT C

Lead-Containing Material Laboratory Analytical

Report and Chain-of-Custody Records

Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

ATTACHMENT D

CDPH Form 8552 – Lead Hazard Evaluation Report

Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

ATTACHMENT E

RCRA 8/CAM 17 Metals Wipe Sampling Analytical Results and Chain-of-Custody Documentation (Except Mercury)

Michael Chapman, Laboratory Manager

Approved By:

Fax: (510) 633-5646 Phone: (510) 343-3000

The following analytical report covers the analysis performed on samples submitted to LA Testing on 12/27/2021. The results are tabulated on the attached data pages for the following client designated project:

NPS/ B T-1111/ 402504015

The reference number for these samples is EMSL Order #332131107. Please use this reference when calling about these samples. If you have any questions, please do not hesitate to contact me at (714) 828-4999.

1/4/2022Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

The samples associated with this report were received in good condition unless otherwise noted. This report relates only to those items tested as received by the laboratory. The QC data associated with the sample results meet the recovery and precision requirements established by the NELAP, unless specifically indicated. All results for soil samples are reported on a dry weight basis, unless otherwise noted. This report may not be reproduced except in full and without written approval by EMSL Analytical, Inc.

LA Testing 5431 Industrial Drive, Huntington Beach, CA 92649 Phone: (714) 828-4999 Fax: (714) 828-4944 Email: gardengrovelab@latesting.com

LA Testing 5431 Industrial Drive, Huntington Beach, CA 92649 Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-01W 332131107-0001 NE int/ paint storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Antimony TH<4.0 μg/ft² 1/4/2022 12:574.0 1/3/2022 cc

3050B/6010D Arsenic TH5.0 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Barium TH63 μg/ft² 1/4/2022 12:575.0 1/3/2022 cc

3050B/6010D Beryllium TH<0.10 μg/ft² 1/4/2022 12:570.10 1/3/2022 cc

3050B/6010D Cadmium TH<1.0 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Chromium TH13 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Cobalt TH2.4 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Copper TH100 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Lead TH76 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Molybdenum TH<1.0 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Nickel TH11 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Selenium TH4.7 μg/ft² 1/4/2022 12:574.0 1/3/2022 cc

3050B/6010D Silver TH1.3 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Thallium TH<2.0 μg/ft² 1/4/2022 12:572.0 1/3/2022 cc

3050B/6010D Vanadium TH5.7 μg/ft² 1/4/2022 12:571.0 1/3/2022 cc

3050B/6010D Zinc TH650 μg/ft² 1/4/2022 12:5710 1/3/2022 cc

Client Sample Description Lab ID:1221-02W 332131107-0002 E- central floor

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH6.7 μg/ft² 1/4/2022 12:591.0 1/3/2022 cc

3050B/6010D Barium TH99 μg/ft² 1/4/2022 12:595.0 1/3/2022 cc

3050B/6010D Cadmium TH1.4 μg/ft² 1/4/2022 12:591.0 1/3/2022 cc

3050B/6010D Chromium TH39 μg/ft² 1/4/2022 12:591.0 1/3/2022 cc

3050B/6010D Lead TH130 μg/ft² 1/4/2022 12:591.0 1/3/2022 cc

3050B/6010D Selenium TH4.7 μg/ft² 1/4/2022 12:594.0 1/3/2022 cc

3050B/6010D Silver TH1.7 μg/ft² 1/4/2022 12:591.0 1/3/2022 cc

Client Sample Description Lab ID:1221-03W 332131107-0003 Se work/ storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

Page 2 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-03W 332131107-0003 Se work/ storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH15 μg/ft² 1/4/2022 13:011.0 1/3/2022 cc

3050B/6010D Barium TH160 μg/ft² 1/4/2022 13:015.0 1/3/2022 cc

3050B/6010D Cadmium TH10 μg/ft² 1/4/2022 13:011.0 1/3/2022 cc

3050B/6010D Chromium TH41 μg/ft² 1/4/2022 13:011.0 1/3/2022 cc

3050B/6010D Lead TH260 μg/ft² 1/4/2022 13:011.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:014.0 1/3/2022 cc

3050B/6010D Silver TH1.3 μg/ft² 1/4/2022 13:011.0 1/3/2022 cc

Client Sample Description Lab ID:1221-04W 332131107-0004 S- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH62 μg/ft² 1/4/2022 13:031.0 1/3/2022 cc

3050B/6010D Barium TH240 μg/ft² 1/4/2022 13:035.0 1/3/2022 cc

3050B/6010D Cadmium TH5.8 μg/ft² 1/4/2022 13:031.0 1/3/2022 cc

3050B/6010D Chromium TH46 μg/ft² 1/4/2022 13:031.0 1/3/2022 cc

3050B/6010D Lead TH270 μg/ft² 1/4/2022 13:031.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:034.0 1/3/2022 cc

3050B/6010D Silver TH1.4 μg/ft² 1/4/2022 13:031.0 1/3/2022 cc

Client Sample Description Lab ID:1221-05W 332131107-0005 S- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH12 μg/ft² 1/4/2022 13:051.0 1/3/2022 cc

3050B/6010D Barium TH500 μg/ft² 1/4/2022 13:055.0 1/3/2022 cc

3050B/6010D Cadmium TH1.9 μg/ft² 1/4/2022 13:051.0 1/3/2022 cc

3050B/6010D Chromium TH24 μg/ft² 1/4/2022 13:051.0 1/3/2022 cc

3050B/6010D Lead TH67 μg/ft² 1/4/2022 13:051.0 1/3/2022 cc

3050B/6010D Selenium TH5.0 μg/ft² 1/4/2022 13:054.0 1/3/2022 cc

3050B/6010D Silver TH2.0 μg/ft² 1/4/2022 13:051.0 1/3/2022 cc

Page 3 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-06W 332131107-0006 S- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH16 μg/ft² 1/4/2022 13:081.0 1/3/2022 cc

3050B/6010D Barium TH730 μg/ft² 1/4/2022 13:085.0 1/3/2022 cc

3050B/6010D Cadmium TH1.6 μg/ft² 1/4/2022 13:081.0 1/3/2022 cc

3050B/6010D Chromium TH28 μg/ft² 1/4/2022 13:081.0 1/3/2022 cc

3050B/6010D Lead TH92 μg/ft² 1/4/2022 13:081.0 1/3/2022 cc

3050B/6010D Selenium TH5.6 μg/ft² 1/4/2022 13:084.0 1/3/2022 cc

3050B/6010D Silver TH1.5 μg/ft² 1/4/2022 13:081.0 1/3/2022 cc

Client Sample Description Lab ID:1221-07W 332131107-0007 NW storage / walkway area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH40 μg/ft² 1/4/2022 13:241.0 1/3/2022 cc

3050B/6010D Barium TH260 μg/ft² 1/4/2022 13:245.0 1/3/2022 cc

3050B/6010D Cadmium TH4.2 μg/ft² 1/4/2022 13:241.0 1/3/2022 cc

3050B/6010D Chromium TH49 μg/ft² 1/4/2022 13:241.0 1/3/2022 cc

3050B/6010D Lead TH250 μg/ft² 1/4/2022 13:241.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:244.0 1/3/2022 cc

3050B/6010D Silver TH1.1 μg/ft² 1/4/2022 13:241.0 1/3/2022 cc

Client Sample Description Lab ID:1221-08W 332131107-0008 S- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH21 μg/ft² 1/4/2022 13:261.0 1/3/2022 cc

3050B/6010D Barium TH190 μg/ft² 1/4/2022 13:265.0 1/3/2022 cc

3050B/6010D Cadmium TH3.7 μg/ft² 1/4/2022 13:261.0 1/3/2022 cc

3050B/6010D Chromium TH31 μg/ft² 1/4/2022 13:261.0 1/3/2022 cc

3050B/6010D Lead TH440 μg/ft² 1/4/2022 13:261.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:264.0 1/3/2022 cc

3050B/6010D Silver TH1.6 μg/ft² 1/4/2022 13:261.0 1/3/2022 cc

Page 4 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-09W 332131107-0009 SW hall/ walkway area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH9.6 μg/ft² 1/4/2022 13:281.0 1/3/2022 cc

3050B/6010D Barium TH160 μg/ft² 1/4/2022 13:285.0 1/3/2022 cc

3050B/6010D Cadmium TH1.2 μg/ft² 1/4/2022 13:281.0 1/3/2022 cc

3050B/6010D Chromium TH11 μg/ft² 1/4/2022 13:281.0 1/3/2022 cc

3050B/6010D Lead TH52 μg/ft² 1/4/2022 13:281.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:284.0 1/3/2022 cc

3050B/6010D Silver TH1.1 μg/ft² 1/4/2022 13:281.0 1/3/2022 cc

Client Sample Description Lab ID:1221-10W 332131107-0010 S- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH51 μg/ft² 1/4/2022 13:301.0 1/3/2022 cc

3050B/6010D Barium TH1200 μg/ft² 1/4/2022 13:305.0 1/3/2022 cc

3050B/6010D Cadmium TH2.0 μg/ft² 1/4/2022 13:301.0 1/3/2022 cc

3050B/6010D Chromium TH78 μg/ft² 1/4/2022 13:301.0 1/3/2022 cc

3050B/6010D Lead TH150 μg/ft² 1/4/2022 13:301.0 1/3/2022 cc

3050B/6010D Selenium TH5.8 μg/ft² 1/4/2022 13:304.0 1/3/2022 cc

3050B/6010D Silver TH2.4 μg/ft² 1/4/2022 13:301.0 1/3/2022 cc

Client Sample Description Lab ID:1221-11W 332131107-0011 S- central walkway area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH9.3 μg/ft² 1/4/2022 13:321.0 1/3/2022 cc

3050B/6010D Barium TH80 μg/ft² 1/4/2022 13:325.0 1/3/2022 cc

3050B/6010D Cadmium TH<1.0 μg/ft² 1/4/2022 13:321.0 1/3/2022 cc

3050B/6010D Chromium TH11 μg/ft² 1/4/2022 13:321.0 1/3/2022 cc

3050B/6010D Lead TH64 μg/ft² 1/4/2022 13:321.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:324.0 1/3/2022 cc

3050B/6010D Silver TH2.1 μg/ft² 1/4/2022 13:321.0 1/3/2022 cc

Page 5 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-12W 332131107-0012 S- central walkway area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH9.9 μg/ft² 1/4/2022 13:341.0 1/3/2022 cc

3050B/6010D Barium TH120 μg/ft² 1/4/2022 13:345.0 1/3/2022 cc

3050B/6010D Cadmium TH3.0 μg/ft² 1/4/2022 13:341.0 1/3/2022 cc

3050B/6010D Chromium TH18 μg/ft² 1/4/2022 13:341.0 1/3/2022 cc

3050B/6010D Lead TH81 μg/ft² 1/4/2022 13:341.0 1/3/2022 cc

3050B/6010D Selenium TH5.2 μg/ft² 1/4/2022 13:344.0 1/3/2022 cc

3050B/6010D Silver TH2.9 μg/ft² 1/4/2022 13:341.0 1/3/2022 cc

Client Sample Description Lab ID:1221-13W 332131107-0013 W- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Antimony TH11 μg/ft² 1/4/2022 13:374.0 1/3/2022 cc

3050B/6010D Arsenic TH37 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Barium TH110 μg/ft² 1/4/2022 13:375.0 1/3/2022 cc

3050B/6010D Beryllium TH<0.10 μg/ft² 1/4/2022 13:370.10 1/3/2022 cc

3050B/6010D Cadmium TH6.6 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Chromium TH27 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Cobalt TH2.5 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Copper TH54 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Lead TH200 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Molybdenum TH<1.0 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Nickel TH18 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:374.0 1/3/2022 cc

3050B/6010D Silver TH1.8 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Thallium TH<2.0 μg/ft² 1/4/2022 13:372.0 1/3/2022 cc

3050B/6010D Vanadium TH8.2 μg/ft² 1/4/2022 13:371.0 1/3/2022 cc

3050B/6010D Zinc TH2100 μg/ft² 1/4/2022 13:3710 1/3/2022 cc

Client Sample Description Lab ID:1221-14W 332131107-0014 SW storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

Page 6 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-14W 332131107-0014 SW storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH12 μg/ft² 1/4/2022 13:531.0 1/3/2022 cc

3050B/6010D Barium TH680 μg/ft² 1/4/2022 13:535.0 1/3/2022 cc

3050B/6010D Cadmium TH5.4 μg/ft² 1/4/2022 13:531.0 1/3/2022 cc

3050B/6010D Chromium TH14 μg/ft² 1/4/2022 13:531.0 1/3/2022 cc

3050B/6010D Lead TH180 μg/ft² 1/4/2022 13:531.0 1/3/2022 cc

3050B/6010D Selenium TH4.0 μg/ft² 1/4/2022 13:534.0 1/3/2022 cc

3050B/6010D Silver TH1.8 μg/ft² 1/4/2022 13:531.0 1/3/2022 cc

Client Sample Description Lab ID:1221-15W 332131107-0015 S- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Antimony TH6.9 μg/ft² 1/4/2022 13:554.0 1/3/2022 cc

3050B/6010D Arsenic TH45 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Barium TH170 μg/ft² 1/4/2022 13:555.0 1/3/2022 cc

3050B/6010D Beryllium TH<0.10 μg/ft² 1/4/2022 13:550.10 1/3/2022 cc

3050B/6010D Cadmium TH21 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Chromium TH23 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Cobalt TH3.6 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Copper TH110 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Lead TH170 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Molybdenum TH6.5 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Nickel TH34 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:554.0 1/3/2022 cc

3050B/6010D Silver TH1.5 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Thallium TH<2.0 μg/ft² 1/4/2022 13:552.0 1/3/2022 cc

3050B/6010D Vanadium TH15 μg/ft² 1/4/2022 13:551.0 1/3/2022 cc

3050B/6010D Zinc TH1700 μg/ft² 1/4/2022 13:5510 1/3/2022 cc

Client Sample Description Lab ID:1221-16W 332131107-0016 N- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

Page 7 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-16W 332131107-0016 N- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH9.0 μg/ft² 1/4/2022 13:571.0 1/3/2022 cc

3050B/6010D Barium TH130 μg/ft² 1/4/2022 13:575.0 1/3/2022 cc

3050B/6010D Cadmium TH<1.0 μg/ft² 1/4/2022 13:571.0 1/3/2022 cc

3050B/6010D Chromium TH12 μg/ft² 1/4/2022 13:571.0 1/3/2022 cc

3050B/6010D Lead TH37 μg/ft² 1/4/2022 13:571.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:574.0 1/3/2022 cc

3050B/6010D Silver TH1.6 μg/ft² 1/4/2022 13:571.0 1/3/2022 cc

Client Sample Description Lab ID:1221-17W 332131107-0017 N- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Antimony TH4.4 μg/ft² 1/4/2022 13:594.0 1/3/2022 cc

3050B/6010D Arsenic TH23 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Barium TH450 μg/ft² 1/4/2022 13:595.0 1/3/2022 cc

3050B/6010D Beryllium TH<0.10 μg/ft² 1/4/2022 13:590.10 1/3/2022 cc

3050B/6010D Cadmium TH3.4 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Chromium TH33 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Cobalt TH3.9 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Copper TH76 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Lead TH180 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Molybdenum TH2.4 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Nickel TH29 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 13:594.0 1/3/2022 cc

3050B/6010D Silver TH2.0 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Thallium TH<2.0 μg/ft² 1/4/2022 13:592.0 1/3/2022 cc

3050B/6010D Vanadium TH20 μg/ft² 1/4/2022 13:591.0 1/3/2022 cc

3050B/6010D Zinc TH830 μg/ft² 1/4/2022 13:5910 1/3/2022 cc

Client Sample Description Lab ID:1221-18W 332131107-0018 E- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

Page 8 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131107 CustomerID: NOMO22 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 2020 Challenger Drive Suite 103 Alameda, CA 94501

Received: 12/27/2021 01:00 PM

NPS/ B T-1111/ 402504015

Fax: (510) 633-5646 Phone: (510) 343-3000

Project:

12/21/2021Collected:

Client Sample Description Lab ID:1221-18W 332131107-0018 E- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH18 μg/ft² 1/4/2022 14:011.0 1/3/2022 cc

3050B/6010D Barium TH160 μg/ft² 1/4/2022 14:015.0 1/3/2022 cc

3050B/6010D Cadmium TH3.0 μg/ft² 1/4/2022 14:011.0 1/3/2022 cc

3050B/6010D Chromium TH42 μg/ft² 1/4/2022 14:011.0 1/3/2022 cc

3050B/6010D Lead TH390 μg/ft² 1/4/2022 14:011.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 14:014.0 1/3/2022 cc

3050B/6010D Silver TH2.0 μg/ft² 1/4/2022 14:011.0 1/3/2022 cc

Client Sample Description Lab ID:1221-19W 332131107-0019 E- central storage area

Collected: 12/21/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

3050B/6010D Arsenic TH19 μg/ft² 1/4/2022 14:031.0 1/3/2022 cc

3050B/6010D Barium TH170 μg/ft² 1/4/2022 14:035.0 1/3/2022 cc

3050B/6010D Cadmium TH3.0 μg/ft² 1/4/2022 14:031.0 1/3/2022 cc

3050B/6010D Chromium TH47 μg/ft² 1/4/2022 14:031.0 1/3/2022 cc

3050B/6010D Lead TH370 μg/ft² 1/4/2022 14:031.0 1/3/2022 cc

3050B/6010D Selenium TH<4.0 μg/ft² 1/4/2022 14:034.0 1/3/2022 cc

3050B/6010D Silver TH1.5 μg/ft² 1/4/2022 14:031.0 1/3/2022 cc

MDL - method detection limit J - Result was below the reporting limit, but at or above the MDLND - indicates that the analyte was not detected at the reporting limit RL - Reporting Limit (Analytical) D - Dilution Sample required a dilution which was used to calculate final results

Definitions:

Page 9 of 9ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 5:37:55 PM

OrderID: 332131107

OrderID: 332131107

Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

ATTACHMENT F

Mercury Wipe Sampling Analytical Results and Chain-of- Custody Documentation

Michael Chapman, Laboratory Manager

Approved By:

Fax: (858) 576-9600 Phone: (858) 576-1000

The following analytical report covers the analysis performed on samples submitted to LA Testing on 12/30/2021. The results are tabulated on the attached data pages for the following client designated project:

402504015

The reference number for these samples is EMSL Order #332131302. Please use this reference when calling about these samples. If you have any questions, please do not hesitate to contact me at (714) 828-4999.

1/4/2022Attn: Bill Larkin Ninyo & Moore 5710 Ruffin Road San Diego, CA 92123

The samples associated with this report were received in good condition unless otherwise noted. This report relates only to those items tested as received by the laboratory. The QC data associated with the sample results meet the recovery and precision requirements established by the NELAP, unless specifically indicated. All results for soil samples are reported on a dry weight basis, unless otherwise noted. This report may not be reproduced except in full and without written approval by EMSL Analytical, Inc.

LA Testing 5431 Industrial Drive, Huntington Beach, CA 92649 Phone: (714) 828-4999 Fax: (714) 828-4944 Email: gardengrovelab@latesting.com

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131302 CustomerID: 32NIN63 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 5710 Ruffin Road San Diego, CA 92123

Received: 12/30/2021 11:45 AM

402504015

Fax: (858) 576-9600 Phone: (858) 576-1000

Project:

12/29/2021Collected:

Client Sample Description Lab ID:1229-01M 332131302-0001 NE Interior - Paint Storage

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.10 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-02M 332131302-0002 E-Central Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.064 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-03M 332131302-0003 SE Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.20 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-04M 332131302-0004 SE Storage / Work Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.079 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-05M 332131302-0005 S-Central Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.41 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-06M 332131302-0006 S-Central Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

Page 2 of 5ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 1:16:21 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131302 CustomerID: 32NIN63 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 5710 Ruffin Road San Diego, CA 92123

Received: 12/30/2021 11:45 AM

402504015

Fax: (858) 576-9600 Phone: (858) 576-1000

Project:

12/29/2021Collected:

Client Sample Description Lab ID:1229-06M 332131302-0006 S-Central Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc<0.050 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-07M 332131302-0007 NW- Storage Walk Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.38 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-08M 332131302-0008 S- Central Storgae Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.48 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-09M 332131302-0009 SW hall/Walkway Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.20 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-09MD 332131302-0010 SW hall/Walkway Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.092 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-10M 332131302-0011 S-Central Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

Page 3 of 5ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 1:16:21 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131302 CustomerID: 32NIN63 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 5710 Ruffin Road San Diego, CA 92123

Received: 12/30/2021 11:45 AM

402504015

Fax: (858) 576-9600 Phone: (858) 576-1000

Project:

12/29/2021Collected:

Client Sample Description Lab ID:1229-10M 332131302-0011 S-Central Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.41 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-11M 332131302-0012 S-Central Walkway Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.19 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-12M 332131302-0013 S-Central Walkway Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.14 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-13M 332131302-0014 W-Central Storage

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.21 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-14M 332131302-0015 SW-Storage Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.29 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-15M 332131302-0016 S-Central Storage

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

Page 4 of 5ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 1:16:21 PM

Phone/Fax: (714) 828-4999 / (714) 828-4944 http://www.LATesting.com gardengrovelab@latesting.com

332131302 CustomerID: 32NIN63 CustomerPO:

ProjectID:

LA Testing Order:

Analytical Results

Attn: Bill Larkin Ninyo & Moore 5710 Ruffin Road San Diego, CA 92123

Received: 12/30/2021 11:45 AM

402504015

Fax: (858) 576-9600 Phone: (858) 576-1000

Project:

12/29/2021Collected:

Client Sample Description Lab ID:1229-15M 332131302-0016 S-Central Storage

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.49 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-16M 332131302-0017 W-Central Storage

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.48 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-17M 332131302-0018 N-Central Storage

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.47 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

Client Sample Description Lab ID:1229-18M 332131302-0019 E-Central Walk Area

Collected: 12/29/2021

Method Parameter Result UnitsRL Analysis

Date & Time Prep

Date & Time

METALS

7471B Mercury cc0.20 μg/ft² 1/4/2022 00:000.050 1/4/2022 cc

MDL - method detection limit J - Result was below the reporting limit, but at or above the MDLND - indicates that the analyte was not detected at the reporting limit RL - Reporting Limit (Analytical) D - Dilution Sample required a dilution which was used to calculate final results

Definitions:

Page 5 of 5ChemSmplw/RDL/NELAC-2.19.0.0 Printed: 1/4/2022 1:16:21 PM

OrderID: 332131302

Ninyo & Moore | Building T-1111 Bunker Road, NPS/GGNRA, Sausalito, California 94965 | 402504015 | April 4, 2022

1956 Webster Street, Suite 400 | Oakland, California 94612 | p. 510.343.3000

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