Appendix I - Langan SMP Report Vantage Phases 2 & 3 — South San Francisco City Council, December 13, 2023 (part 1 of 3)

Appendix I
Soil Management Plan for Vantage Phases 2 and 3
Langan Engineering and Environmental Services Inc., November 4, 2022

SOIL MANAGEMENT PLAN
VANTAGE PHASES 2 and 3
420, 440, and 466 Forbes Boulevard
South San Francisco, California
Prepared For:

HCP Forbes, LLC and LS Forbes, LLC
1 Tower Place, Suite 200
South San Francisco, California 94080
Prepared By:

Langan Engineering and Environmental Services, Inc.
1 Almaden Boulevard, Suite 590
San Jose, California 95113
Daniel Wood
Senior Staff Geologist
Peter J. Cusack
Associate Principal/Vice President
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TABLE OF CONTENTS

1.0 INTRODUCTION.............................................................................................................1

2.0 PROPOSED SITE DEVELOPMENT ................................................................................1

3.0 PREVIOUS ENVIRONMENTAL REPORTS.....................................................................2

3.1 Langan Engineering and Environmental, Inc. – Phase I ESA – October 2021......................................................................................................2

4.0 RECENT LANGAN SUBSURFACE INVESTIGATIONS..................................................3

4.1 Langan Engineering and Environmental, Inc. –
October 2020 Geotechnical Investigation ........................................................3

4.2 Langan Engineering and Environmental, Inc. –
November 2021 Geotechnical Investigation....................................................4

4.3 Langan Engineering and Environmental, Inc. –
September 2022 Geotechnical Investigation...................................................6

5.0 SURFACE AND SUBSURFACE CONDITIONS ..............................................................8

6.0 RECOMMENDATIONS FOR ENVIRONMENTAL MANAGEMENT...............................9

6.1 Health and Safety Measures ...........................................................................10

6.2 Health and Safety of Personnel ......................................................................10

6.3 Health and Safety Issues .................................................................................10

6.3.1 Health and Safety Plan.........................................................................10

6.3.2 Health and Safety Officer.....................................................................11

6.4 Demolition........................................................................................................11

6.5 General Soil Handling Procedures ..................................................................11

6.6 Soil Management during Construction..........................................................12

6.6.1 Material Segregation and Disposal.....................................................12

6.6.2 Soil Disposition ....................................................................................12

6.6.3 Stockpile Sampling ..............................................................................14

6.6.4 On-Site Movement of Soils .................................................................14

6.6.5 Soil Import Criteria (If Needed) ...........................................................15

6.7 Dust Control .....................................................................................................16

6.8 Asbestos ATCM Compliance...........................................................................17

6.9 Odor Control ....................................................................................................18

6.10 Groundwater Management.............................................................................18

6.11 Contingency Procedures for Unknown/Unexpected Conditions .................19

7.0 COMPLETION REPORT................................................................................................20

8.0 LIMITATIONS...............................................................................................................21 TABLES

FIGURES

APPENDICES
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ATTACHMENTS
TABLES
Table 1 Soil Analytical Results for Non-Metals
Table 2 Soil Analytical Results for Metals

FIGURES
Figure 1 Site Location Map
Figure 2 Site Plan

APPENDICES
Appendix A Geotechnical Boring Logs
Appendix B Certified Analytical Reports and Chain-of-Custody Records Soil Management Plan
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SOIL MANAGEMENT PLAN
Vantage Phases 2 and 3
420, 440, and 466 Forbes Boulevard
South San Francisco, California

1.0 INTRODUCTION
Langan Engineering and Environmental Services, Inc. (Langan) presents this Soil Management Plan (SMP) on behalf of HCP Forbes, LLC and LS Forbes, LLC (Client), for the proposed Vantage Phase 2 development project located at 420, 440, and 466 Forbes Boulevard in South San Francisco, California (site; Figure 1). The site is between Forbes Boulevard to the north, an open lot to the east, and commercial buildings intended for demolition and a trail corridor to the west and south. The site is made up of five assessor parcels (APN 015-050-230, 015-050-590, 015-050-710, 015-050-720, 015-050-730). The majority of the site is currently occupied by one building, several small structures and parking lots (Figure 2).

This SMP presents the analytical results of Langan’s recent subsurface investigations, in addition to recommended measures to mitigate any long-term environmental or health and safety risks caused by the presence of hazardous materials and/or contamination at the site. This SMP also contains contingency plans to be implemented during construction activities, should unanticipated hazardous wastes be encountered. Construction activities will include soil handling, excavation, and disposal. This SMP includes measures to mitigate potential risks to the environment and to protect construction workers, nearby residents, workers, and/or pedestrians from potential exposure to hazardous substances that may be associated with unknown impacts or “Unanticipated Conditions” (as defined in Section 8.9 below). This SMP provides a framework for managing soil during construction, and presents procedures for handling, management, and disposal of impacted soil, if encountered.

2.0 PROPOSED SITE DEVELOPMENT
We understand any proposed development would include demolition of the existing structures and construction of several new structures that will be at-grade. The new structures include Parking Structures 1 through 3, and Buildings C, D, E, and F and will be constructed in two phases, designated as Phase 2 and 3. Phase 2 will consist of Buildings C and D, and Parking Structures 1 and 2. Phase 3 will consist of Buildings E and F, and Parking Structure 3.

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3.0 PREVIOUS ENVIRONMENTAL REPORTS
Langan previously prepared a Phase I Environmental Site Assessment (ESA) for the site (420, 440, and 466 Forbes Boulevard) dated 23 October 2021. A summary of the findings is provided below:
 Langan Engineering and Environmental, Inc., Phase I Environmental Site Assessment, Gallo Site, 420, 440, and 446 Forbes Boulevard, South San Francisco, California, dated 23 October 2022.

3.1 Langan Engineering and Environmental, Inc. – Phase I ESA – October 2021 Langan conducted a Phase I ESA for the site (including 420, 440, and 466 Forbes Boulevard) in October 2021. Based on the databases searched by EDR, requests made for public documentation related to past or present environmental conditions at the Site and surrounding area, and review of previous investigative documents Langan has identified evidence of one recognized environmental condition (REC) and one Controlled REC (CREC) associated with the site:

REC 1 – Sepentinite Bedrock at the Site
Portions of the site at the western end of the site (420 Forbes Boulevard) is underlain by serpentinite bedrock which can potentially contain concentrations of naturally occurring asbestos (NOA). Given that the area to be disturbed during the proposed development activities will be greater than one acre, the proposed project will be subject to the California Air Resource Board (CARB) Asbestos Airborne Toxic Control Measure (ATCM) for construction, grading, quarrying, and surface mining operations dated July 2001 due to the presence of serpentinite in the subsurface. The CARB Asbestos ATCM is enforced locally by the Bay Area Air Quality Management District (BAAQMD) and requires construction projects greater than one acre in size in which NOA, serpentinite, or ultramafic rock is present to prepare a site-specific Asbestos Dust Mitigation Plan (ADMP) for agency approval prior to construction and perimeter asbestos dust monitoring during construction. In addition, the serpentinite bedrock material may contain elevated concentrations of heavy metals (nickel, chromium, and lead) which could require special handling and disposal.

CREC 1 – Fuel Leak Case at Gallo Sales Company, 440 Forbes Boulevard A total of six underground storage tanks (USTs) were reportedly removed from the 440 Forbes Boulevard property between 1973 (one unknown) and November 1991 (five known). Petroleum Soil Management Plan
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hydrocarbon contamination was detected in the soil and groundwater and over excavation within the former UST pits was performed and a total of nine groundwater monitoring wells were installed and sampled. A groundwater extraction treatment system was installed an operated from 1991 until 2010. Based on the analytical results, it appeared that the soil contamination was limited in area and that the groundwater contamination would continue to naturally attenuate over time.

Based on the contaminated soil remediation and groundwater monitoring activities, administrative case closure for the fuel leak was granted by the San Mateo County Environmental Health Department – Groundwater Protection Program (SMCEHD-GPP) in a letter dated 3 April 2013 for the Gallo Sales Company located at 440 Forbes Boulevard, in South San Francisco, California.

The following conditions exist for the property:
 The City of South San Francisco Building department has notified that should excavation or development of the 440 Forbes Boulevard or adjacent 466 Forbes Boulevard be proposed that may encounter impacted soil or groundwater, SMCEHD-GPP must be notified.

4.0 RECENT LANGAN SUBSURFACE INVESTIGATIONS
This section briefly describes Langan’s recent subsurface investigations and current environmental conditions at the site, based on the analytical results from site soil.

4.1 Langan Engineering and Environmental, Inc. – October 2020 Geotechnical Investigation
Three borings, designated as B-1 through B-3, were drilled to a depth of approximately 26.5 to

31.5 feet below ground surface (bgs) as shown on Figure 2. A Langan field representative logged the borings and obtained environmental soil samples from borings B-1 and B-2 at approximate depths of 3.0 feet, 5.0 feet, 7.5 feet, 10.0 feet, 12.5 feet, and 15 feet bgs. A total of six samples were tested for asbestos by California Air Resource Board (CARB) Method 435.

Serpentinite bedrock was encountered in the western portion of the site containing naturally occurring asbestos (NOA) in the form of green rock fragments exhibiting chrysotile fibers (based on visual observations). Chrysotile is a grey to green, soft, fibrous silicate mineral in the serpentine subgroup and is one of the most commonly encountered forms of NOA. The suspect Soil Management Plan
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asbestiform material was sampled and the results indicated concentrations of asbestos ranging from zero to three percent. The asbestos results are summarized in Table 1.

4.2 Langan Engineering and Environmental, Inc. – November 2021 Geotechnical Investigation
On 10 November 2021, a total of three geotechnical exploratory borings (designated B-4 through B-6) to a maximum depth of 34.5 feet bgs as shown on Figure 2. A Langan field representative logged the borings and obtained environmental soil samples at approximate depths of 1.5, 3.0,

4.5, and 6.0 feet bgs.

Soil analytical results for parameters other than metals are summarized in Table 1. The results of the investigation were compared to the 2019 RWQCB ESLs for commercial/industrial land use.

The certified laboratory analytical results are presented in Appendix B.

TPHg and TPHd were not detected above the laboratory reporting limit in any samples analyzed.

TPHmo was detected above the laboratory reporting limit in four of the nine samples analyzed, at concentrations ranging from 12 milligrams per kilogram (mg/kg) to 19 mg/kg.

Trace concentrations of seven SVOCs including benzo(a)pyrene, benzo(g,h,i)perylene, chrysene, dibenzo(a,h)anthracene, fluoranthene, 2-methynaphthalene, and pyrene were detected in at least one of the nine samples analyzed, but none exceeded established ESLs:
 benzo(a)pyrene was detected in one sample at a concentration of 0.018 mg/kg;  benzo(g,h,i)perylene was detected in two samples at concentrations of 0.0058 mg/kg and

0.021 mg/kg;
 chrysene was detected in one sample at a concentration of 0.019 mg/kg;  dibenzo(a,h)anthracene was detected in one sample at a concentration of 0.013 mg/kg;  fluoranthene was detected in two samples at concentrations of 0.0015 mg/kg and

0.022 mg/kg;
 2-methynaphthalene was detected in one sample at a concentration of 0.013 mg/kg; and  pyrene was in one sample at a concentration of 0.025 mg/kg.

Trace concentrations of five OCPs including a-chlordane, dichlorodiphenyldichloroethane (DDD), dichlorodiphenyldichloroethylene (DDE), dichlorodiphenyltrichloroethane (DDT), and endrin Soil Management Plan
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ketone were detected in at least one of the nine samples analyzed, but none exceeded established ESLs:
 a-chlordane was detected in one sample at a concentration of 0.00020 mg/kg;  DDD was detected in one sample at a concentration of 0.00014 mg/kg;  DDE was detected in one sample at a concentration of 0.00011 mg/kg  DDT was detected in two samples at concentrations of 0.00016 mg/kg and

0.00026 mg/kg; and
 endrin ketone was detected in one sample at a concentration of 0.00016 mg/kg.

No TPHg, TPHd, VOCs, PCBs, or asbestos were detected at or above the laboratory reporting limits in any of the soil samples analyzed. None of the detections of TPHmo, SVOCs, or OCPs exceeded their respective 2019 RWQCB commercial environmental screening levels ESLs.

The metal analytical results are summarized in Table 2. Total chromium was detected at or above the laboratory reporting limit in each of the nine samples analyzed at concentrations ranging from 30 mg/kg to 160 mg/kg. Total chromium was detected at concentrations above 50 mg/kg (10 times the STLC) but below 2,500 mg/kg (TTLC) in seven of the nine samples analyzed.

Therefore, these samples were subsequently analyzed for STLC chromium to determine if soluble chromium levels exceed State of California hazardous waste criteria. STLC chromium was detected above the laboratory reporting limit in two of the seven samples analyzed at concentrations ranging from 0.13 milligrams per liter (mg/L) to 0.34 mg/L, which are below the STLC State of California hazardous waste criteria of 5 mg/L. In addition, total chromium was detected in two soil samples analyzed at concentrations above 100 mg/kg (20 times the TCLP).

Therefore, these two samples were subsequently analyzed for TCLP chromium to determine if soluble chromium levels exceed Federal hazardous waste criteria. TCLP chromium was not detected above the laboratory reporting limit in either of the two samples analyzed. None of the STLC or TCLP chromium concentrations exceed the Class I non-RCRA State of California or Class I RCRA Federal hazardous waste thresholds.

Arsenic was detected at or above the LRLs in each of the nine samples analyzed, with all detections exceeding the commercial ESL (0.31 mg/kg) with concentrations ranging from

1.1 mg/kg to 7.4 mg/kg. None of the detections exceeded applicable soluble testing criteria.

It should be noted that these detections are within normal background ranges found in the Soil Management Plan
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San Francisco Bay Area. The remaining metal concentrations were also within normal background ranges found in the San Francisco Bay Area.

4.3 Langan Engineering and Environmental, Inc. – September 2022 Geotechnical Investigation
On 10 November 2021, a total of three geotechnical exploratory borings (designated B-4 through B-6) to a maximum depth of 34.5 feet bgs as shown on Figure 2. A Langan field representative logged the borings and obtained environmental soil samples at approximate depths of 1.5, 3.0,

4.5, 6.0, 10.0 and 12.0 feet bgs. A total of three soil samples from each boring at depths of 1.5,

3.0 and 4.5 feet were analyzed for the chemical parameters at a State of California certified analytical laboratory. All samples were screened in the field with an organic vapor monitor.

The approximate sampling locations are shown on Figure 2. Logs of the soil borings are presented in Appendix A. The material encountered was classified according to the soil classification system described on Figure C-4.

All soil samples were delivered to McCampbell under COC control for analysis. Certified laboratory analytical reports and COC records from our subsurface investigations are included in Appendix B. The soil analytical results are presented in Tables 1 and 2.

Soil analytical results for parameters other than metals are summarized in Table 1. The results of the investigation were compared to the 2019 RWQCB ESLs for commercial/industrial land use.

The certified laboratory analytical results are presented in Appendix B.

TPHg was detected above the laboratory reporting limit in 12 of the 18 samples at concentrations ranging from 1.2 mg/kg to 32 mg/kg. TPHd was detected above the laboratory reporting limit in 14 of the 18 samples analyzed at concentrations ranging from 2.7 mg/kg to 250 mg/kg. TPHmo was detected above the laboratory reporting limit in 11 of the 18 samples analyzed at concentrations ranging from 12 mg/kg to 310 mg/kg. None of the TPHg, TPHd, and TPHmo detections exceeded established ESLs.

Trace concentrations of ten SVOCs including benzo(a)pyrene, benzo(b)fluoranthene, bis(2-ethylexyl)phthalate, butylbenzyl phthalate, chrysene, fluoranthene, 1-methylnaphthalene, 2-methynaphthalene, phenanthrene and pyrene were detected in at least one of the 18 samples analyzed, but none exceeded established ESLs:
 benzo(a)pyrene was detected in one sample at a concentration of 0.0060 mg/kg; Soil Management Plan
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 benzo(b)fluoranthene was detected in one sample at a concentration of 0.0076 mg/kg;  bis(2-ethylexyl)phthalate was detected in two samples at concentrations of 0.013 mg/kg and 0.017 mg/kg;
 butylbenzyl phthalate was detected in one sample at a concentration of 0.034  chrysene was detected in one sample at a concentration of 0.0053 mg/kg;  fluoranthene was detected in one sample at a concentration of 0.0089 mg/kg;  1-methylnapthalene was detected in one sample at a concentration of 0.0037 mg/kg;  2-methynaphthalene was detected in one sample at a concentration of 0.0073 mg/kg; and  phenanthrene was detected in one sample at a concentration of 0.013 mg/kg;  pyrene was detected in one sample at 0.0080 mg/kg.

Asbestos was detected in one sample at a concentration of 0.25% which exceeds both of the 2019 RWQCB ESLs for commercial/industrial land use of 0.25%.

No OCPs or PCBs were detected at or above the laboratory reporting limits in any of the soil samples analyzed. None of the detections of TPHg, TPHd, TPHmo or SVOCs exceeded their respective 2019 RWQCB commercial environmental screening levels ESLs.

The metal analytical results are summarized in Table 2. Total chromium was detected at or above the laboratory reporting limit in each of the 18 samples analyzed at concentrations ranging from 30 mg/kg to 140 mg/kg. Total chromium was detected at concentrations above 50 mg/kg (10 times the STLC) but below 2,500 mg/kg (TTLC) in 16 of the 18 samples analyzed. Therefore, these samples were subsequently analyzed for STLC chromium to determine if soluble chromium levels exceed State of California hazardous waste criteria. STLC chromium was detected at or above the laboratory reporting limit in seven of the 16 samples analyzed at concentrations ranging from 0.10 milligrams per liter (mg/L) to 0.63 mg/L, which are below the STLC State of California hazardous waste criteria of 5 mg/L. In addition, total chromium was detected in two soil samples analyzed at concentrations above 100 mg/kg (20 times the TCLP).

Therefore, these two samples were subsequently analyzed for TCLP chromium to determine if soluble chromium levels exceed Federal hazardous waste criteria. TCLP chromium was not detected at or above the laboratory reporting limit in either of the two samples analyzed. None of Soil Management Plan
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the STLC or TCLP chromium concentrations exceed the Class I non-RCRA State of California or Class I RCRA Federal hazardous waste thresholds.

Arsenic was detected at or above the lab reporting limits in each of the 18 samples analyzed, with all detections exceeding the commercial ESL (0.31 mg/kg) with concentrations ranging from

2.0 mg/kg to 9.6 mg/kg. None of the detections exceeded applicable soluble testing criteria.

It should be noted that these detections are within normal background ranges found in the San Francisco Bay Area. The remaining metal concentrations were also within normal background ranges found in the San Francisco Bay Area.

5.0 SURFACE AND SUBSURFACE CONDITIONS
Currently, the east and west ends of the Vantage development are open lots; the east lot is under construction (Phase 1) and the west lot is being used for staging and construction parking.

The center of the site is currently occupied by two commercial buildings and paved parking.

Borings indicate the existing pavement section of the paved parking consists of about one to five inches of asphalt underlain by up to twelve inches of aggregate base at boring locations drilled in pavement areas. According to a topographic site map, the existing ground surface elevations generally range from Elevation 35 feet to Elevation 42 feet1.

The site is underlain by up to about 4½ feet of fill consisting of sandy clay and sand with gravel.

Bedrock underlies the fill along the northwest corner of the site. In the remaining portions of the site, medium dense to very dense sand with varying amounts of silt and clay and stiff to very stiff clay of the Colma Formation were encountered to the maximum depth explored of 31½ feet bgs.

Bedrock, consisting of sandstone, shale and serpentinite, which sometimes contains naturally occurring asbestos (NOA), of the Francisco Complex, was encountered approximately between 2½ and 4 feet bgs in the northwestern corner of the project site during the previous and current investigations. As part of the previous geotechnical investigations, the results of asbestos testing indicated concentrations of asbestos ranging from 0.25 to 3 percent. The rock is intensely fractured to crushed, plastic to friable, deeply weathered, and has soft to moderately hard hardness. Bedrock generally becomes deeper to the south and east.

1 Elevations based on topographic site plan titled “VANTAGE Site Topo” provided by Project Management Advisors on 24 August 2022.

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During our current investigation, bedrock was encountered at approximately 16 to 20 feet bgs in the southwest corner of the site. Bedrock was not encountered in the central and eastern part of the project site; however, according to published top of bedrock elevation contour maps (Hensolt, 1990), bedrock is estimated to be approximately 40 to 50 feet bgs.

The historic high groundwater level is approximately 10 feet bgs (California Geological Survey, 2021). During the previous and current investigations, groundwater was encountered at approximately 15 to 25 feet bgs during drilling. Additionally, groundwater has been observed at the top of bedrock in the vicinity of the site; this may represent a perched groundwater condition.

The observed groundwater level may not represent stabilized level, and may also fluctuate due to seasonal rainfall.

6.0 RECOMMENDATIONS FOR ENVIRONMENTAL MANAGEMENT
The most recent analytical results indicate that some of the material present at the site contains low levels of petroleum hydrocarbons, SVOCs, and heavy metals in the soil at the site.

Serpentinite was encountered and asbestos detected in the western end of the site on the 420 Forbes Boulevard property. The presence of these compounds poses soil management and potential health and safety (H&S) issues to be addressed as part of the site development activities. The soil management objectives for the site are to minimize exposure of potentially hazardous constituents in soil to construction workers, nearby residents and/or pedestrians, and future users of the site. The routes of potential exposure could be through three pathways:
1) dermal (skin) contact with the soil; 2) inhalation of dusts; and 3) ingestion of the soil.

The general contractor (GC) would be responsible for establishing and maintaining proper health and safety procedures to minimize worker and public exposure to site contaminants during construction.

The procedures in this SMP are intended to facilitate compliance with applicable federal, state, and local laws and regulations, applicable to earthwork activities at the site as a result of the reported petroleum hydrocarbon, SVOCs, heavy metals, and asbestos concentrations at the site.

Before intrusive earthwork begins at the site, an on-site pre-field meeting will be conducted between Langan and the GC to review the site-specific health and safety plans and discuss the typical observations associated with contaminated soils.

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6.1 Health and Safety Measures
The GC will be responsible for establishing and maintaining proper health and safety procedures to minimize worker and public exposure to site contaminants during construction.

6.2 Health and Safety of Personnel
Potential health risk to on-site construction workers and the public will be addressed by developing and implementing a health and safety program. The GC will be responsible for establishing and maintaining proper health and safety procedures to minimize worker and public exposure to site contaminants during construction. It is the GC’s responsibility to communicate the site information, including this SMP, to its subcontractors.

6.3 Health and Safety Issues
On the basis of our experience on similar properties, there are potential health and safety risks associated with the heavy metals and petroleum hydrocarbons detected at the site for construction workers, nearby residents and/or pedestrians, and future users of the site.

The routes of potential exposure to the petroleum hydrocarbons and metals could be through three pathways: 1) dermal (skin) contact with the soil; 2) inhalation of dusts; and 3) ingestion of the soil.

The most likely potential for human exposure to the petroleum hydrocarbons and metals in the soil will be during soil excavation operations. The GC will be responsible for establishing and maintaining proper health and safety procedures to minimize worker and public exposure to site contaminants during construction.

6.3.1 Health and Safety Plan
The potential health risk to on-site construction workers and the public will be minimized by developing and implementing a comprehensive HASP. The contractor will be responsible for developing and implementing the HASP.

The purpose of the HASP will be to provide field personnel with an understanding of the potential chemical and physical hazards, protection of any off-site receptors, procedures for entering the project site, health and safety procedures, and emergency response to hazards should they occur. The HASP plan will describe the health and safety training requirements, i.e. specific personal hygiene, and monitoring equipment that will be used during construction to protect and Soil Management Plan
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verify the health and safety of the construction workers and the general public from exposure to constituents in the soil. A copy of the HASP will be kept on site during field activities and will be reviewed and updated as necessary.

6.3.2 Health and Safety Officer
A site health and safety officer (HASO) identified in the HASP will be on site at all times during excavation activities to ensure that all health and safety measures are maintained. The HASO will have authority to direct and stop (if necessary) all construction activities in order to ensure compliance with the HASP.

The general public will be protected through the following measures:

1. The site will be fenced;

2. Exposed soil at the construction site will be watered at least twice a day to prevent visible dust from migrating off-site;

3. Soil stockpiles will be covered;

4. Trucks transporting contaminated soil will be covered with a tarpaulin or other cover;

5. The wheels of the trucks exiting the site will be cleaned prior to entering public streets;

6. Public streets will be swept daily if soil is visible; and

7. Excavation and loading activities will be suspended if sustained winds exceed 25 miles per hour.

6.4 Demolition
The owner plans to demolish the existing buildings and the demolition will include removal of all above ground structures and the buildings’ concrete slabs. Langan will be present during the concrete slab removal activities to oversee any handling or excavation of potentially impacted soil.

6.5 General Soil Handling Procedures
The soil handling procedures described in this section are intended to support compliance with federal, state, and local requirements, reduce the potential for off-site migration, and reduce the potential for exposure by construction workers, nearby residents and workers, and pedestrians, to constituents in site soil and groundwater.

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6.6 Soil Management during Construction
The proposed construction activities will disturb soil during excavation, site grading, utility trenching, and the construction of new foundations. During these earthwork activities, soil management and dust control measures shall be implemented to reduce the potential exposure of construction workers, off-site receptors, and future site users to constituents in the soil.

The following sections outline specific mitigation measures for the on-site movement of soils; material segregation and disposal; stockpiling, soil sampling, material importing, and material placement/compaction (as necessary). The site’s HASP will contain additional dust monitoring, action levels, and work stoppage provisions that will be followed during construction activities in addition to those described in this SMP.

6.6.1 Material Segregation and Disposal
Based on the analytical results of the soil samples, the fill material will be disposed of as non-hazardous material and/or unrestricted waste. The excavation subcontractor shall be responsible for tracking the disposition of soil removed from the site.

Based on the excavation and grading depths proposed for the site development, it is anticipated that soil excavated during the construction activities will be directly loaded into trucks for off-site disposal; if necessary, other means for disposal of soils include use of bins for containing soil prior to transport and off-site disposal.

If soil stockpiling of suspected contaminated soil is to be performed, the excavation contractor shall establish appropriate soil stockpile locations on the site to properly segregate, cover, control dust, profile, and manage the excavated soil. At a minimum, stockpiled soils will be placed on top of one layer of 20-mil polyethylene sheeting (or equivalent), such as Visqueen.

When stockpiled soil is not actively being handled, top sheeting will be adequately secured so that all surface areas are covered.

6.6.2 Soil Disposition
The GC will establish appropriate off-site soil disposal locations and direct truck loading scheduling and/or soil stockpile locations on the site to properly segregate, cover, moisture control, and profile the excavated soil. Soil profiling criteria will ultimately depend on the acceptance criteria of the facilities receiving the soil. These procedures will be established by the excavation contractor and coordinated with the proposed facilities prior to initiating soil excavation. Langan shall be provided documentation from the excavation contractor that the soils Soil Management Plan
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from the site development project to the proposed acceptance facilities have been approved.

The GC, on behalf of the owner, will be responsible for tracking final soil dispositions.

Any excavated soil considered Federal RCRA or State of California non-RCRA hazardous waste (none expected based on analytical data to date) will be tracked using the Uniform Hazardous Waste Manifest System (USEPA Form 8700-22), as applicable. Soil not considered hazardous waste will be tracked using non-hazardous bills of lading. These two systems will be used to comply with appropriate state and local requirements. All manifest and bills of lading will be provided to Langan during or subsequent to said excavation activities.

The excavation contractor will arrange for transportation of all wastes off-site to the appropriate disposal facility using a permitted, licensed, and insured transportation company. Transporters of hazardous waste must meet the requirements of 40 CFR 263 and 22 CCR 66263. All trucks transporting bulk hazardous waste will be properly lined and covered with compatible materials.

Soil is to be exported off-site that is characterized as a hazardous waste; an appropriate USEPA Generator Identification Number will be recorded on the hazardous waste manifests used to document transport of hazardous waste off-site. The hazardous waste transporter, disposal facility, and U.S. Department of Transportation (DOT) waste description required for each manifest will be determined on a case-by-case basis. A description of the number of containers being shipped, the type of container, and the total quantity of waste being shipped will also be included on each manifest.

The excavation contractor will be responsible for accurate completion of the hazardous waste manifests and nonhazardous bills of lading. Records of all wastes shipped off-site will be maintained by the owner and will be made available for inspection on request. The final destination of wastes transported off-site will be documented in the Soil Management Completion Report (Section 7.0).

The following records will be kept by the owner for the indicated length of time:

1. Copies of uniform hazardous waste manifests signed by the designated waste disposal facility will be retained for at least five years from the date the waste was accepted by the initial transporter.

2. All records pertaining to the characterization of hazardous or nonhazardous waste will be retained for a minimum of three years.

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Vantage Phases 2 and 3
420, 440, and 466 Forbes Boulevard
South San Francisco, California
4 November 2022
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6.6.3 Stockpile Sampling
If needed, chemical testing of the stockpiled soil will be performed to profile the soil for disposal that has not already been previously characterized or suspected to have contamination.

Soil profiling criteria depends on the proposed landfill location or off-site receiving facility.

These procedures shall be established by the excavation contractor and coordinated with the proposed landfills prior to initiating soil excavation. Langan shall be provided documentation from the excavation contractor that the soils from the site to the proposed acceptance/landfill facilities have been approved. Typical soil profiling requirements for landfills are one four-point composite sample per 250 cubic yards of material to be disposed. If soil samples are required for analysis, the samples shall be collected using a hand-driven sampler with an inside diameter of two inches, lined with a clean stainless steel tube, and driven into the soil. The ends of the sample tube shall be covered with Teflon and sealed with plastic end caps, and placed into an ice-chilled cooler until delivery under COC protocol to a California-certified analytical laboratory. The soil samples collected from the stockpile shall be identified by using a progressive numbering sequence with the date of the sample collection and the location. All appropriate regulatory sampling methods, holding times, and detection limits shall be followed. Stockpiled soil samples will be analyzed for the following analyses:
 TPHg, TPHd and TPHmo by EPA Method 8015M;
 VOCs (VOCs) by EPA Method 8260B;
 SVOCs by EPA Method 8270C;
 PCBs by EPA Method 8082;
 Asbestos by California Air Resources Board (CARB) Method 435; and  California Assessment Manual (CAM) 17 Metals by EPA Method 6020.

6.6.4 On-Site Movement of Soils
Soil within the boundaries of the Site may be moved within or between various portions of the Site, managed and re-used without need for sampling, provided the soils are not adjacent to documented or newly discovered impacted soil or unanticipated subsurface conditions. Prior to moving and reusing soil on the site, Langan must be notified and approve of the proposed use.

Langan-approved representatives must also visually inspect the soil proposed for reuse prior to reusing the soil.

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420, 440, and 466 Forbes Boulevard
South San Francisco, California
4 November 2022
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6.6.5 Soil Import Criteria (If Needed)
Unless from a documented clean source such as a quarry, soil imported onto the Project Site will be tested in accordance with the “Clean Imported Fill Material” information advisory developed by the California DTSC in October 2001. In accordance with the DTSC information advisory, import fill will be analyzed for the following:
 TPHd and TPHmo by EPA Method 8015 modified by EPA Method 3630;  TPHg by EPA Method 8015 modified;
 VOCs by EPA Method 8260;
 SVOCs by EPA Method 8270C;
 CAM 17 Metals by EPA Method 6020;
 OCPs by EPA Method 8081 (for fill source areas formerly used as agricultural land);  Chlorinated herbicides by EPA Method 8151 (for fill source areas formerly used as agricultural land);
 PCBs by EPA Method 8082; and,
 Asbestos by California Air Resources Board Method 435 (CARB).  For in-place import material, the following sampling frequency is required:
 Two acres or less – a minimum of four samples;
 Two to four acres – a minimum of one sample per 1/2 acre;  Four to 10 acres - a minimum of eight samples; and,
 Greater than 10 acres- a minimum of eight locations with four subsamples per location.

For excavated and stockpiled import material, the following sampling frequency is required:
 Up to 1,000 cubic yards (cy) – one sample per 250 cy;  1,000 to 5,000 cy – four samples for the first 1,000 cy plus one sample per each additional 500 cy; and,
 Greater than 5,000 cy – 12 samples for the first 5,000 cy plus 1 sample per each additional 1,000 cy.

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420, 440, and 466 Forbes Boulevard
South San Francisco, California
4 November 2022
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If the chemical properties of an import fill source are known (i.e. quarried material) sampling may not be required. Soil quality parameters for acceptable imported soil are will be based on the 2019 Water Board ESLs from Table S-1, Soil Direct Exposure Human Health Risk Screening Levels for commercial land use. For arsenic, the background level in the Bay Area of 11 mg/kg will be used in place of the ESL. Import soil with visual or olfactory evidence of petroleum hydrocarbons is prohibited.

6.7 Dust Control
Prior to initiating construction activities, a dust control plan (prepared by contractor and specific to this project) will be implemented to reduce potential exposure during excavation and loading operations, and included as an appendix to the site’s HASP. This document will contain measures to protect construction workers and the public including: dust control measures and work stoppage provisions that will be followed during construction activities.

During excavation and subsurface demolition activities, a dust control plan will be implemented through implementation of engineering controls, to minimize generation of dust and the potential off-site migration of chemicals in site soil. Dust control measures at a minimum will include:
 Covering soil stockpiles with plastic sheeting.
 Watering uncovered ground surface at the site; use of water will be limited to prevent runoff.
 Misting or spraying of soil during excavation and loading.  Emplacement of gravel and/or rubble plates on site access roads as feasible.  Trucks hauling soil from the site will be covered.
 Visible dust will be monitored during excavation and subsurface demolition.  The soil drop height from an excavator’s bucket onto soil piles or into transport trucks will be minimized.
 Windbreaks will be deployed as necessary.
 If necessary, the area of excavation may be limited to reduce dust generation.  Site vehicle speed limits.
 Street sweeping.

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420, 440, and 466 Forbes Boulevard
South San Francisco, California
4 November 2022
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 Termination of excavation if winds exceed 25 mph.
 Addition of soil stabilizers and other responses as needed.

Misting or spraying will be performed to sufficiently reduce fugitive dust emissions, but limited to prevent water runoff. Efforts will also be made to minimize the soil drop height from an excavator’s bucket onto soil piles or into transport trucks.

6.8 Asbestos ATCM Compliance
The site is subject to Title 17 of the California Code of Regulations (17 CCR) Section 93105 CARB Asbestos ATCM for construction, grading, quarrying, and surface mining operations dated July 2002 due to the presence of NOA in the subsurface. The CARB Asbestos ATCM is enforced locally by the Bay Area Air Quality Management District (BAAQMD) and requires construction projects greater than one acre in size, in which NOA, serpentinite, or ultramafic rock is present, to prepare a site-specific ADMP for agency approval. The ADMP will specify dust mitigation measures that must be initiated at the start and maintained throughout the duration of the construction and grading activity per the Asbestos ATCM. Asbestos dust mitigation will be implemented every day that construction and grading activities are performed at the site.

Construction and grading activities include any disturbance of surface or stockpiles conducted with powered equipment or any related activity including, but not limited to, all surface and subsurface cuts and fills, excavation, material loading, trenching, stockpiling, auger drilling, bulldozing, and landfilling.

Asbestos dust suppression measures will be implemented by the general contractor and their subcontractors in accordance with the ADMP. In addition, perimeter airborne asbestos monitoring will be conducted every day in which construction and grading activities occur.

Typically this includes one upwind and two downwind asbestos dust monitoring locations.

Based on air monitoring results, visual observations of fugitive dust and/or complaints of excessive dust generation by off-site parties, additional dust suppression measures may need to be implemented. The general contractor and their subcontractors will be responsible for conducting the dust control measures presented in the ADMP, and for general compliance with Asbestos ATCM during construction and grading activities.

The Asbestos ATCM states that at a minimum the following dust mitigation measures must be initiated at the start and maintained throughout the duration of the construction or grading activity:
 Construction vehicle speed at the work site must be limited to 15 miles per hour or less; Soil Management Plan
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420, 440, and 466 Forbes Boulevard
South San Francisco, California
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 Prior to any ground disturbance, sufficient water must be applied to the area to be disturbed to prevent visible emissions from crossing the property line;  Areas to be graded or excavated must be kept adequately wetted3 to prevent visible emissions from crossing the property line;
 Storage piles must be kept adequately wetted, treated with a chemical dust suppressant, or covered when material is not being added to or removed from the pile;  Equipment must be washed down before moving from the property onto a paved public road; and
 Visible track-out on the paved public road must be cleaned using wet sweeping or a HEPA filter equipped vacuum device within twenty-four hours.

Per the Asbestos ATCM, the project shall initiate at the start and maintain throughout the duration of the construction earth-disturbing activity the mitigation measures listed above until the site is fully encapsulated with concrete or serpentinite fragments are no longer exposed at the surface (i.e. covered with hardscape and/or landscape).

6.9 Odor Control
If needed, odor suppression measures will be implemented by the GC to minimize odor during excavation activities. The means to be considered for minimization of odors during excavation activities includes, but are not limited to: (a) limiting the area of open excavations; (b) shrouding open excavations with tarps and other covers; (c) Limiting soil excavation or loading to times when meteorological conditions are conducive to conducting operations (e.g., the predominant wind direction does not direct vapors or odors toward a sensitive receptor); (d) use of foams to cover exposed odorous soil and rock material; (e) use of chemical odorants in spray or misting systems (i.e. Simple Green, ODEX, or Biosolve); and, (e) use of staff to monitor odors in surrounding area.

6.10 Groundwater Management
Construction dewatering is not anticipated, based on site development plans and the estimated depth to groundwater. However, if required, any construction dewatering must adhere to a discharge permit obtained from the South San Francisco Department of Public Works Water

3 “Adequately Wetted,” as defined by the Asbestos ATCM, means sufficiently moistened with water to minimize the release of particulate matter into the ambient air as determined by the test method(s) in subsection (h)(5).

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Vantage Phases 2 and 3
420, 440, and 466 Forbes Boulevard
South San Francisco, California
4 November 2022
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Quality Control Division, Environmental Compliance Program. Based on previous groundwater analytical results from the Phase I development, the groundwater will likely be able to be discharge in accordance with the permit to a sanitary sewer system. In the event of the presence of petroleum hydrocarbon contamination or any other unexpected chemicals are detected in groundwater, the groundwater will be pumped into appropriate containers (i.e. Baker Tanks) and samples will be obtained for chemical analyses. The groundwater will be tested for parameters established by the South San Francisco Department of Public Works Water Quality Control Division, Environmental Compliance Program. If analytes in the groundwater exceed the permit discharge limits, the groundwater will be properly treated prior to disposal.

6.11 Contingency Procedures for Unknown/Unexpected Conditions The following tasks should be implemented during soil excavation if unknown historical subsurface features and/or unanticipated hazardous materials are encountered. Such materials may include unaccounted for USTs and associated product lines, sumps, and/or vaults, monitoring wells, and soil with significant petroleum hydrocarbon odors and/or stains:
 Stop work in the area where the suspect material is encountered and cover with plastic sheets;
 Notify the GC’s HSSO and site superintendent. The GC will request that Langan conduct a site inspection and will consult with the Langan regarding appropriate follow-up actions in the suspect area. Langan will notify the SSFDPH (if needed) of site conditions that indicate a material threat to human health or the environment; and  Review the existing HASP for revisions, if necessary, and have appropriately trained personnel on-Site to work with the affected materials, once directed by the GC.

If necessary, notifications will be performed, permits will be in place prior to subsurface feature removals, and permit conditions will be followed.

If a UST, product line, sump, or vault is found, SMCEH and South San Francisco Fire Department (SSFFD) will be notified and a licensed tank removal contractor will properly remove and dispose of the UST. Proper permits and notifications should be in place prior to removal of the UST. If soil staining is observed, the affected soil will be placed in a stockpile on plastic sheets and covered with plastic sheets. Langan will complete soil sampling and analysis tasks for UST closure in accordance with both SMCEH and SSFFD. Langan will collect and analyze soil samples to determine disposal of the material, the extent of the unexpected area of apparent petroleum impacted soil, and that impacted material has been appropriately removed. Soil samples collected Soil Management Plan
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420, 440, and 466 Forbes Boulevard
South San Francisco, California
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from beneath fuel pipelines, if any, will be collected beneath joints and elbows and at a frequency of one sample per 20 linear feet.

If a sump and/or vaults are located during excavation activities, Langan will be contacted for inspection and appropriate action. If no liquid, obvious soil staining or odors are noted, the sump and/or vault will be destroyed and disposed of. Langan will collect and analyze soil samples from beneath the sump and/or vault to determine disposal of the material, the extent of the unexpected area of apparent impacted soil, if any, and that impacted material has been appropriately removed. If liquid is present within the sump and/or vault and/or obvious staining and odors are noted, Langan will collect samples for analyses to evaluate proper disposal of the material Langan will collect and analyze samples of the liquid material and soil samples from beneath the sump and/or vault to determine disposal of the material, and the extent of the unexpected area of apparent impacted soil, if any, and that impacted material has been appropriately removed.

If stained soil or odors are noted in association with an unknown subsurface feature, plastic sheeting will be placed over the affected area and Langan will be contacted for inspection and appropriate action. If the stained or odor-containing soil is excavated, the soil will be stockpiled onto plastic sheeting and covered with plastic sheeting. Langan will collect and analyze soil samples to determine disposal of the material, the extent of the unexpected area of apparent petroleum impacted soil, and that impacted material has been appropriately removed.

Soil samples collected from beneath fuel pipelines, if any, will be collected beneath joints and elbows and at a frequency of one sample per 20 linear feet.

7.0 COMPLETION REPORT
Subsequent to the completion of the site developments soil handling and excavation activities, a Soil Management Completion Report (Completion Report) will be prepared. The Completion Report will present a chronology of the construction events, a summary of analytical data, a copy of all manifests from the site, and a description of all soil and groundwater management activities at the site. The report will also contain laboratory analytical results and figures, as appropriate, to provide details regarding the amount and type of contamination encountered during various activities. The report will also summarize any residual contaminants that were left on the site after completion of redevelopment activities and document that soil handling procedures were implemented in accordance with this SMP.

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420, 440, and 466 Forbes Boulevard
South San Francisco, California
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8.0 LIMITATIONS
This SMP has been prepared on behalf of HCP Forbes, LLC and LS Forbes, LLC (Client) and is specific to the proposed Vantage Phases 2 and 3 development project located at 420, 440, and 466 Forbes Boulevard in South San Francisco, California. All conclusions and recommendations in this report concerning the site are the professional opinions of the Langan personnel involved with the project, and this report should not be considered a legal interpretation of existing environmental regulations. Opinions presented herein apply to site conditions existing at the time of our assessment, and cannot necessarily be taken to apply to site changes or conditions of which we are not aware and have not had the opportunity to evaluate.

TABLES
Table 1
Soil Analytical Results for Non-Metals
Vanity Amenity Building
466 Forbes Blvd.

South San Francisco, California
Langan Project: 770675102
June 2022
TPHg TPHd TPHmo Benzo (a)
pyrene
Benzo (b)
fluoranthene
Benzo
(g,h,i)
perylene
Chrysene
Dibenzo
(a,h)
anthracene
Fluoranthene 1-Methyl
naphthalene
2-Methyl
naphthalene
Phenanthrene Pyrene aChlordane p,p-DDD p,p-DDE p,p-DDTEndrin ketone
%
B-1-3.0 3 10/19/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.0 B-1-7.5 7.5 10/19/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1.0 B-1-12.5 12.5 10/19/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.25 B-2-5.0 5.0 10/19/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND B-2-10.0 10.0 10/19/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND B-2-15.0 15.0 10/19/2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ND B-4-1.5 1.5 11/10/2021 < 1.0 < 2.0 18 H ND 0.018 < 0.032 0.021 0.019 0.013 0.022 < 0.0065 0.013 H < 0.025 0.025 ND 0.00020 < 0.00010 < 0.00010 0.00016 < 0.00010 ND ND < 0.25 B-4-3.0 3.0 11/10/2021 < 1.0 < 2.0 < 10 ND < 0.0025 < 0.0063 < 0.0025 < 0.0025 < 0.0025 0.0015 < 0.0013 < 0.0025 < 0.0050 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-4-4.5 4.5 11/10/2021 < 1.0 < 2.0 < 10 ND < 0.0025 < 0.0063 < 0.0025 < 0.0025 < 0.0025 < 0.0013 < 0.0013 < 0.0025 < 0.0050 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-5-1.5 1.5 11/10/2021 < 1.0 < 2.0 < 10 ND < 0.0050 < 0.013 0.0058 < 0.0050 < 0.0050 < 0.0026 < 0.0026 < 0.0050 < 0.10 < 0.0050 ND < 0.00010 0.00014 0.00011 0.00026 0.00016 ND ND < 0.25 B-5-3.0 3.0 11/10/2021 < 1.0 < 2.0 < 10 ND < 0.0025 < 0.0063 < 0.0025 < 0.0025 < 0.0025 < 0.0013 < 0.0013 < 0.0025 < 0.0050 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-5-6.0 6.0 11/10/2021 < 1.0 < 2.0 < 10 ND < 0.0025 < 0.0063 < 0.0025 < 0.0025 < 0.0025 < 0.0013 < 0.0013 < 0.0025 < 0.0050 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-6-1.5 1.5 11/10/2021 < 1.0 < 2.0 19 H ND < 0.0025 < 0.013 < 0.0025 < 0.0025 < 0.0025 < 0.0013 < 0.0026 < 0.0025 < 0.010 < 0.0025 ND < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 ND ND < 0.25 B-6-3.0 3.0 11/10/2021 < 1.0 < 2.0 16 H ND < 0.0025 < 0.0063 < 0.0025 < 0.0025 < 0.0025 < 0.0013 < 0.0013 < 0.0025 < 0.0050 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-6-4.5 4.5 11/10/2021 < 1.0 < 2.0 12 H ND < 0.0025 < 0.0063 < 0.0025 < 0.0025 < 0.0025 < 0.0013 < 0.0013 < 0.0025 < 0.0050 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-7-1.5 1.5 8/11/2022 < 1.0 < 2.0 < 10 ND 0.006 0.0076 <0.0050 -- -- 0.0089 0.0037 0.0073 0.013 0.008 ND <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 ND ND 0.25 B-7-3.0 3.0 8/11/2022 1.7 7 16 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-7-4.5 4.5 8/11/2022 29 250 210 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-8-1.5 1.5 8/11/2022 1.4 5.2 12 ND < 0.0025 < 0.0025 < 0.0025 0.0053 <0.0050 <0.0025 <0.0013 <0.0013 <0.0013 < 0.0025 ND <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 ND ND < 0.25 B-8-3.0 3.0 8/11/2022 <1.0 < 2.0 10 ND < 0.0025 < 0.0025 < 0.0025 < 0.0025 < 0.0025 < 0.0025 <0.0013 <0.0013 <0.0013 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-8-4.5 4.5 8/11/2022 <1.0 2.7 16 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-9-1.5 1.5 8/11/2022 <1.0 < 2.0 <10 ND <0.0025 <0.0025 <0.0025 < 0.0025 < 0.0025 < 0.0025 <0.0013 <0.0013 <0.0013 < 0.0025 ND <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 ND ND < 0.25 B-9-3.0 3.0 8/11/2022 12 7.1 <10 ND <0.0025 <0.0025 <0.0025 < 0.0025 < 0.0025 < 0.0025 <0.0013 <0.0013 -- -- ND -- -- -- -- -- ND ND < 0.25 B-9-4.5 4.5 8/11/2022 1.4 3 <10 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-10-1.5 1.5 8/12/2022 <1.0 21 260 ND -- -- -- -- -- -- -- -- -- -- ND <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 ND ND < 0.25 B-10-3.0 3.0 8/12/2022 1.3 3.7 <10 ND <0.0025 <0.0025 <0.0025 < 0.0025 < 0.0025 < 0.0025 <0.0013 <0.0013 <0.0013 < 0.0025 ND -- -- -- -- -- ND ND < 0.25 B-10-4.5 4.5 8/12/2022 18 20 51 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-11-1.5 1.5 8/12/2022 9.9 100 310 ND <0.4 <0.4 <0.4 <0.4 <0.4 <0.4 <0.21 <0.21 <0.21 <0.4 ND <0.050 <0.050 <0.050 <0.050 <0.050 ND ND < 0.25 B-11-3.0 3.0 8/12/2022 32 64 110 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-11-4.5 4.5 8/12/2022 4.7 35 71 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-12-1.5 1.5 8/12/2022 <1.0 <2.0 <10 ND <0.0025 <0.0025 <0.0025 <0.0025 <0.0025 <0.0025 <0.0013 <0.0013 <0.0013 < 0.0025 ND <0.010 <0.010 <0.010 <0.010 <0.010 ND ND < 0.25 B-12-3.0 3.0 8/12/2022 3.4 15 13 ND -- -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- ND ND < 0.25 B-12-4.5 4.5 8/12/2022 1.2 5.8 28 ND <0.020 <0.020 <0.020 <0.020 <0.020 <0.020 <0.010 <0.010 <0.010 <0.20 ND -- -- -- -- -- ND ND < 0.25 -- -- -- Various 2.1 -- 2,100 2.1 -- -- -- Various -- 12 8.3 8.5 -- Various 0.94 -- 2,000 1,200 180,000 Various 220 -- -- -- 30,000 3,000 23,000 Various -- -- -- 520 -- Various -- -- Notes: Abbreviations:

H - samples were analyzed out of hold time TPHg - Total Petroleum Hydrocarbons as Gasoline, EPA Method 8015M mg/kg - milligrams per kilogram TPHd - Total Petroleum Hydrocarbons as Diesel Range, EPA Method 8015M < 0.25 - Analyte was not detected above the reporting limit TPHmo - Total Petroleum Hydrocarbons as Motor Oil Range, EPA Method 8015M 1 - RWQCB, Soil Commercial / Industrial: Shallow Soil Exposure, Cancer Risk Environmental Screening Levels, dated January 2019 VOCs - Volatile Organics, EPA Method SW8260B 2 - RWQCB, Soil Commercial / Industrial: Shallow Soil Exposure, Non-Cancer Hazard Environmental Screening Levels, dated January 2019 SVOCs - Semi-Volatile Organics, EPA Method 8270C with GPC Cleanup -- - Not analyzed/Not established OCPs - Organochlorine Pesticides, EPA Method 8081 ND - Not detected at or above method reporting limit PCBs - Polychlorinated Biphenyls, EPA Method 8082 Commercial / Industrial ESLs - Non-Cancer
Hazard2
Date
Sampled
Sample
ID
Commercial / Industrial ESLs - Cancer Risk1
(mg/kg)
Screening Criteria
PCBs Asbestos Sample
Depth
(feet bgs)
OCPs
All Other
OCPs
TPH
VOCs All Other
SVOCs
SVOCs

Page 1 of 1 ends

Table 2
Soil Analytical Results for Metals
Vanity Amenity Building
466 Forbes Blvd.

South San Francisco, California
Langan Project: 770675102
June 2022
Antimony Arsenic Barium Beryllium Cadmium Chromium Chromium STLC
Chromium
TCLP Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc B-4-1.5 1.5 11/10/2021 < 0.50 7.4 90 0.54 < 0.50 160 0.34 < 0.10 20 33 11 0.078 H < 0.50 240 0.51 < 0.50 < 0.50 60 66 B-4-3.0 3.0 11/10/2021 < 0.50 3.2 66 < 0.50 < 0.50 120 0.13 < 0.10 11 12 6.0 0.13 H < 0.50 73 < 0.50 < 0.50 < 0.50 50 35 B-4-4.5 4.5 11/10/2021 < 0.50 2.2 51 < 0.50 < 0.50 62 < 0.10 -- 16 9.8 3.6 0.24 H < 0.50 42 < 0.50 < 0.50 < 0.50 34 24 B-5-1.5 1.5 11/10/2021 < 0.50 2.2 52 < 0.50 < 0.50 41 -- -- 6.5 7.8 3.1 < 0.050 H < 0.50 47 < 0.50 < 0.50 < 0.50 32 26 B-5-3.0 3.0 11/10/2021 < 0.50 1.4 37 < 0.50 < 0.50 30 -- -- 5.5 5.2 1.8 < 0.050 H < 0.50 36 < 0.50 < 0.50 < 0.50 23 17 B-5-6.0 6.0 11/10/2021 < 0.50 1.9 52 < 0.50 < 0.50 89 < 0.10 -- 16 11 3.5 0.063 H < 0.50 59 < 0.50 < 0.50 < 0.50 49 23 B-6-1.5 1.5 11/10/2021 < 0.50 1.1 51 < 0.50 < 0.50 63 < 0.10 -- 9.1 11 2.8 0.053 H < 0.50 64 < 0.50 < 0.50 < 0.50 38 27 B-6-3.0 3.0 11/10/2021 < 0.50 1.3 51 < 0.50 < 0.50 66 < 0.10 -- 11 9.9 2.9 < 0.050 H < 0.50 65 < 0.50 < 0.50 < 0.50 48 29 B-6-4.5 4.5 11/10/2021 < 0.50 1.3 41 < 0.50 < 0.50 68 < 0.10 -- 8.0 8.2 2.7 < 0.050 H < 0.50 56 < 0.50 < 0.50 < 0.50 52 28 B-7-1.5 1.5 8/11/2022 < 0.50 5.8 110 < 0.50 < 0.50 140 < 0.10 < 0.10 17.0 31.0 9.4 0.068 < 0.50 150 < 0.50 < 0.50 < 0.50 58 58 B-7-3.0 3.0 8/11/2022 < 0.50 9.6 120 0.6 < 0.50 73 < 0.10 -- 16.0 41.0 12 0.079 1.1 110 < 0.50 < 0.50 < 0.50 59 85 B-7-4.5 4.5 8/11/2022 < 0.50 5.7 170 0.53 < 0.50 66 < 0.10 -- 16.0 13.0 13 0.2 0.82 67 < 0.50 < 0.50 < 0.50 68 66 B-8-1.5 1.5 8/11/2022 < 0.50 2.6 55 < 0.50 < 0.50 73 0.10 -- 8.8 9.5 3.7 < 0.050 < 0.50 40 < 0.50 < 0.50 < 0.50 53 32 B-8-3.0 3.0 8/11/2022 < 0.50 2.8 52 < 0.50 < 0.50 65 < 0.10 -- 8.4 9.7 3.2 < 0.050 < 0.50 38 < 0.50 < 0.50 < 0.50 52 28 B-8-4.5 4.5 8/11/2022 < 0.50 3.5 63 < 0.50 < 0.50 69 < 0.10 -- 11.0 12.0 5.3 0.061 < 0.50 42 < 0.50 < 0.50 < 0.50 49 27 B-9-1.5 1.5 8/11/2022 < 0.50 4.9 72 < 0.50 < 0.50 82 < 0.10 -- 8.9 14.0 3.9 < 0.050 < 0.50 71 < 0.50 < 0.50 < 0.50 75 39 B-9-3.0 3.0 8/11/2022 < 0.50 4.5 68 < 0.50 < 0.50 64 < 0.10 -- 5.8 11.0 3.3 < 0.050 < 0.50 56 < 0.50 < 0.50 < 0.50 66 32 B-9-4.5 4.5 8/11/2022 < 0.50 4.3 65 < 0.50 < 0.50 63 0.15 -- 7.4 9.4 3 < 0.050 < 0.50 51 < 0.50 < 0.50 < 0.50 65 32 B-10-1.5 1.5 8/12/2022 < 0.50 3.9 91 < 0.50 < 0.50 63 < 0.10 -- 9.5 18.0 6.4 < 0.050 < 0.50 74 < 0.50 < 0.50 < 0.50 47 39 B-10-3.0 3.0 8/12/2022 < 0.50 3.7 110 < 0.50 < 0.50 80 0.14 -- 13.0 13.0 7.1 < 0.050 < 0.50 58 < 0.50 < 0.50 < 0.50 56 28 B-10-4.5 4.5 8/12/2022 < 0.50 8.3 390 0.57 < 0.50 93 0.13 -- 66.0 32.0 10 0.063 0.9 180 < 0.50 < 0.50 < 0.50 88 54 B-11-1.5 1.5 8/12/2022 0.52 6.1 110 0.6 < 0.50 110 < 0.10 < 0.10 20.0 34.0 15 0.18 0.57 160 < 0.50 < 0.50 < 0.50 82 70 B-11-3.0 3.0 8/12/2022 < 0.50 5.3 130 < 0.50 < 0.50 66 0.17 -- 13.0 22.0 12 0.057 0.53 73 < 0.50 < 0.50 < 0.50 56 51 B-11-4.5 4.5 8/12/2022 < 0.50 6.2 98 0.55 < 0.50 72 < 0.10 -- 25.0 13.0 10 0.07 < 0.50 90 < 0.50 < 0.50 < 0.50 64 22 B-12-1.5 1.5 8/12/2022 < 0.50 2.1 69 < 0.50 < 0.50 30 -- -- 5.2 13.0 5.5 < 0.050 < 0.50 19 < 0.50 < 0.50 < 0.50 23 37 B-12-3.0 3.0 8/12/2022 < 0.50 2.2 49 < 0.50 < 0.50 43 -- -- 7.5 6.9 2.9 < 0.050 < 0.50 28 < 0.50 < 0.50 < 0.50 37 19 B-12-4.5 4.5 8/12/2022 < 0.50 2 54 < 0.50 < 0.50 65 0.63 -- 6.4 6.0 2.8 < 0.050 < 0.50 53 < 0.50 < 0.50 < 0.50 42 22 -- 0.31 -- 6,900 4,000 -- -- -- 1,900 -- 380 -- -- 64,000 -- -- -- -- -- 160 3.6 220,000 230 1,100 -- -- -- 350 47,000 320 190 5,800 11,000 5,800 5,800 12 5,800 350,000 mg/kg 500 500 10,000 75 100 2,500 -- -- 8,000 2,500 1,000 20 3,500 2,000 100 500 700 2,400 5,000 mg/L 15 5 100 0.75 1 5 5 -- 80 25 5 0.2 350 20 1 5 7 24 250 mg/L -- 5 100 -- 1 5 -- 5 -- -- 5 0.2 -- -- 1 5 -- -- --

1.5-7.1 1.2-31 41-411 0.29-1.1 0.27-3.3 10-142 -- -- 6.5-25.5 5.4-100 4.8-65 0.07-0.6 0.33-11.4 16-144 < 0.25-7 0.2-2.2 < 0.25-42.5 22-90 33-282 Notes:

H - samples were analyzed out of hold time Abbreviations:
mg/kg - milligrams per kilogram TTLC - California Total Threshold Limit Concentration - State hazardous waste criterion mg/L - milligrams per liter STLC - California Soluble Threshold Limit Concentration < 0.5 - Analyte was not detected above the reporting limit TCLP - Federal Toxicity Characteristic Leaching Procedure 1 - RWQCB, Soil Commercial / Industrial: Shallow Soil Exposure, Cancer Risk Environmental Screening Levels, dated January 2019 2 - RWQCB, Soil Commercial / Industrial: Shallow Soil Exposure, Non-Cancer Hazard Environmental Screening Levels, dated January 2019 3 Environmental Resources Management. Feasibility Study, Hookston Station, Pleasant Hill, California. Appendix A, Table A-2, “Comparison of Background Concentrations of Metals in Bay Area Soils,” July 2006. -- - Not analyzed/not established
ND - Not detected at or above method reporting limit
Date
Sampled
Sample
ID
Background Metal Concentrations3
Screening Criteria
Hazardous Waste Criteria
Commercial / Industrial ESLs -
Non-Cancer Hazard2
Commercial / Industrial ESLs -
Cancer Risk1
Sample
Depth
(mg/kg) (mg/L) (mg/kg)
TTLC
STLC
TCLP

Page 1 of 1 ends

FIGURES
1 Almaden Boulevard, Suite 590
San Jose, CA 95113
T: 408.283.3600 F: 408.283.3601 www.langan.com
© 2019 Langan
Langan Engineering, Environmental, Surveying, Landscape Architecture and Geology, D.P.C.

Filename: C:\bms\langan-pw-01\d0266232\FG01-770675103-B-GI0101.dwg Date: 10/26/2022 Time: 12:43 User: jfrank Style Table: Langan.stb Layout: Figure 1 Site Loc Approximate scale
0 2,000 Feet
Notes: Topographic base map is provided through Langan’s Esri Arc GIS software licensing and Arc GIS online ,
National Geographic Society, i-cubed .

SITE
B-7
B-10
B-11
B-8
B-12
B-9

FORBES BOULEVARD

ALLERTON AVENUE RAILS-TO-TRAILS
B-3
B-2
B-1
B-4
B-5
B-6
Filename: C:\bms\langan-pw-01\d0266232\FG02-770675103-B-SP0102.dwg Date: 10/26/2022 Time: 12:46 User: jfrank Style Table: Langan.stb Layout: SITE PLAN 135 Main Street, Suite 1500
San Francisco, CA 94105
T: 415.955.5200 F: 415.955.5201 www.langan.com
© 2020 Langan
Langan Engineering and Environmental Services, Inc.

Approximate location of boring by
Langan, August 2022
Approximate location of boring by
Langan, November 2021
Approximate location of boring by
Langan, October 2020

EXPLANATION
Approximate scale
B-1 0 150 Feet
Reference: Base map by Healthpeak
Properties titled "Vantage Amenity Building".

B-4
B-7 Approximate site boundary
Vantage Phase 1 Structure (not included in
this study)
Vantage Phase 2 Structure (fire station not
included in this study)
Vantage Phase 3 Structure

APPENDIX A

GEOTECHNICAL BORING LOGS
SILTY SAND with GRAVEL (SM)
gray-brown, moist, fine- to medium-grained,
subangular to subrounded fine to coarse gravel, trace
coarse-grained sand [FILL]

SERPENTINITE
gray-brown, intensely fractured to crushed, low
hardness, friable, deeply weathered [BEDROCK]
gray to gray-brown
SHALE
gray-brown to dark brown, intensely fractured, low
hardness to crushed, moderately hard, plastic to
friable deeply weathered, serpentinite fragments
gray with white discoloration, low hardness
gray-brown, increased serpentinite content

SERPENTINITE
gray-green, closely fractured to crushed, low hardness
to moderately hard, friable to weak, deeply weathered,
white discoloration
gray to gray-green with white discoloration at bottom
with white discoloration
6 5
7 3
4 6
7 13
18 11
50/
4"
17 50/
6"
23 17
23 12
21 50/
2"
12 17
24 14
12 37
60/
4"
60/
6"
48 85/
8"
49 SM
BULK
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
See Site Plan, Figure 2
10/19/20
Hollow Stem Auger
Standard Penetration Test (SPT)
Date finished: 10/19/20
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

JDO
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches
Logged by:

Drilled By:

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
GALLO SITE Log of Boring B-1 South San Francisco, California Figure:
770675101
Project No.:

PROJECT:

A-1
PAGE 1 OF 1
TEST GEOTECH LOG 770675101_GALLOSITE.GPJ TEMPLATE_CA-MODIFIED.GDT 10/23/20 1 S&H and SPT blow counts for the last two increments were converted to SPT N-Values using factors of 0.7 and 1.2, respectively to account for sampler type and hammer energy.

Boring terminated at a depth of 26.5 feet below ground surface.

Boring backfilled with cement grout.

Groundwater not observed at time of drilling.

SILTY SAND with GRAVEL (SM)
gray-brown, moist, fine- to medium-grained,
subangular to subrounded fine to coarse gravel, trace
coarse-grained sand [FILL]
SHALE
gray-brown, intensely fractured to crushed, soft to low hardness, plastic to friable, deeply weathered, white
discoloration [BEDROCK]
light brown to gray-brown with white discoloration
gray-brown
gray-green to gray-brown
gray-brown to light gray, soft to low hardness
low hardness to moderately hard, white discoloration
gray-brown to dark brown with blue-green serpentinite
fragments
8 9
14 7
14 11
11 24
41 24
50/
4"
13 23
29 14
38 36
14 19
50/
2"
15 45
47 28
30 78
60/
4"
62 89
83/
8"
110
SM
GRAB
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

Date started:

Drilling method:

Samplers:

JDO
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches
Logged by:

Drilled By:

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
GALLO SITE Log of Boring B-2 South San Francisco, California Figure:
770675101
Project No.:

PROJECT:

A-2
PAGE 1 OF 1
TEST GEOTECH LOG 770675101_GALLOSITE.GPJ TEMPLATE_CA-MODIFIED.GDT 10/23/20 1 S&H and SPT blow counts for the last two increments were converted to SPT N-Values using factors of 0.7 and 1.2, respectively to account for sampler type and hammer energy.

Boring terminated at a depth of 26.5 feet below ground surface.

Boring backfilled with cement grout.

Groundwater not observed at time of drilling.
2 inches asphalt parking log (AC/AB)
Top 5 feet Hand Augered
SAND with SILT (SP-SM)
red-yellow to brown, moist, fine- to medium-grained,
trace coarse particles and clay, moist
increased fines content [FILL]
SAND with SILT (SP-SM)
red-yellow to brown, medium dense, moist, trace dark
brown clay
very dense

CLAYEY SAND (SC)
red-yellow, medium dense, moist, fine- to
medium-grained, trace silt
dense
medium dense, decreased fines content
(10/19/20, 12:35 PM)
red-brown to yellow-brown, wet
SAND with CLAY (SP-SC)
yellow to light brown, very dense, wet, fine- to
medium-grained, trace silt
7 14
28 17
22 22
11 18
26 3
6 6
7 14
14 6
11 13
4 6
7 5
12 20
29 53
53 14
34 29
16 22
SPSM
SPSM
SC
SPSC
GRAB
S&H
SPT
SPT
SPT
SPT
SPT
SPT
S&H
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
See Site Plan, Figure 2
10/19/20
Hollow Stem Auger
Sprague & Henwood (S&H), Standard Penetration Test (SPT) Date finished: 10/19/20
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

JDO
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches
Logged by:

Drilled By:

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
GALLO SITE Log of Boring B-3 South San Francisco, California Figure:
770675101
Project No.:

PROJECT:

A-3a
PAGE 1 OF 2
TEST GEOTECH LOG 770675101_GALLOSITE.GPJ TEMPLATE_CA-MODIFIED.GDT 10/23/20 SAND with CLAY (SP-SC) (continued)
very dense
17 37
50/
3"
61 SPSC S&H
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample

SAMPLES LABORATORY TEST DATA
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60

MATERIAL DESCRIPTION
GALLO SITE Log of Boring B-3 South San Francisco, California Figure:
770675101
Project No.:

PROJECT:

A-3b
PAGE 2 OF 2
TEST GEOTECH LOG 770675101_GALLOSITE.GPJ TEMPLATE_CA-MODIFIED.GDT 10/23/20 1 S&H and SPT blow counts for the last two increments were converted to SPT N-Values using factors of 0.7 and 1.2, respectively to account for sampler type and hammer energy.

Boring terminated at a depth of 31.25 feet below ground surface.

Boring backfilled with cement grout - via tremie pipe.

Groundwater observed at 22 feet at time of drilling.

18.0 100
4 inches Asphalt Concrete (AC)
6 inches Aggregate Base (AB)

SANDY CLAY (CL)
gray, moist, fine- to medium sand, fine subangular to
subrounded gravel with rootlets [FILL]
gray-brown to yellow-brown

CLAYEY SAND (SC)
red-yellow, medium dense, moist, fine-grained, trace
fine subangular to subrounded gravel
dense to very dense

SANDY CLAY (CL)
red-yellow, very stiff, moist, fine sand

CLAYEY SAND (SC)
red-yellow with brown mottling, medium dense, moist,
fine-grained
very dense
at 11 feet: LL = 25, PI = 8, see Figure D-1
12 12
18 8
18 24
5 15
22 12
20 25
21 50
26 54
AC
AB
CL
SC
CL
SC
HA
HA
HA
S&H
SPT
S&H
SPT

22.5 DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
See Site Plan, Figure 2
11/10/21
Hollow Stem Auger
Ground Surface Elevation: 40.0 feet2
Sprague & Henwood (S&H), Standard Penetration Test (SPT) Date finished: 11/10/21
Hammer type: Automatic Safety
Boring location:

Date started:

Drilling method:

Samplers:

T. Toledo
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches
Logged by:

Drilled By:

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
466 FORBES BOULEVARD Log of Boring B-4 South San Francisco, California Figure:
770675102
Project No.:

PROJECT:

C-1
PAGE 1 OF 1
TEST GEOTECH LOG 770675102_466 FORBES BOULEVARD.GPJ TEMPLATE_CA-MODIFIED - COPY.GDT 2/15/22 1 S&H and SPT blow counts for the last two increments were converted to SPT N-Values using factors of 0.7 and 1.2, respectively to account for sampler type and hammer energy. 2
Elevations based on topographic survey provided by PMA, datum unknown.

Boring terminated at a depth of 13 feet below ground surface.

Boring backfilled with cement grout.

Groundwater not encountered at time of drilling.
119
109

13.5 14.1

17.1 19.8
5 inches Asphalt Concrete (AC)
4 inches Aggregate Base (AB)
SAND with SILT (SP-SM)
yellow-brown, moist, fine-grained, trace coarse
subrounded gravel, trace brick debris [FILL]
red-brown, with less gravel and brick

CLAYEY SAND (SC)
red-brown, medium dense, moist, fine-grained
gray-brown to red-yellow
yellow-brown to gray-brown, dense, moist,
fine-grained sand, trace fine angular to subangular
gravel
medium dense
LL = 24, PI = 7, see Figure D-1

SILTY SAND (SM)
red-brown to red, dense, moist, fine-grained, trace clay (11/10/21, 2:30 PM)

SILTY SAND (SM)
olive-gray, dense, wet, fine-grained
trace black mottling
very dense, wet, fine-grained, trace fine gravel
8 10
10 6
10 11
18 25
27 8
15 25
18 19
19 10
18 20
9 24
40 14
25 36
28 46
46 77
AC
AB
SPSM
SC
SM
SM
HA
HA
HA
S&H
SPT
S&H
S&H
SPT
SPT
SPT

37.9 23.9

16.3 DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
See Site Plan, Figure 2
11/10/21
Hollow Stem Auger
Ground Surface Elevation: 40.0 feet2
Sprague & Henwood (S&H), Standard Penetration Test (SPT) Date finished: 11/10/21
Hammer type: Automatic Safety
Boring location:

Date started:

Drilling method:

Samplers:

T. Toledo
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches
Logged by:

Drilled By:

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
466 FORBES BOULEVARD Log of Boring B-5 South San Francisco, California Figure:
770675102
Project No.:

PROJECT:

C-2a
PAGE 1 OF 2
TEST GEOTECH LOG 770675102_466 FORBES BOULEVARD.GPJ TEMPLATE_CA-MODIFIED - COPY.GDT 2/15/22

21.9 107

19.6 SAND (SP)
grey-brown, wet, non-plastic
SAND with SILT (SP-SM)
brown, wet, plastic
dense
8 9
11 9
22 16
24 46
SP
SPSM
DIST
SPT
SPT

3.6 9.1
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample

SAMPLES LABORATORY TEST DATA
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60

MATERIAL DESCRIPTION
466 FORBES BOULEVARD Log of Boring B-5 South San Francisco, California Figure:
770675102
Project No.:

PROJECT:

C-2b
PAGE 2 OF 2
TEST GEOTECH LOG 770675102_466 FORBES BOULEVARD.GPJ TEMPLATE_CA-MODIFIED - COPY.GDT 2/15/22 1 S&H and SPT blow counts for the last two increments were converted to SPT N-Values using factors of 0.7 and 1.2, respectively to account for sampler type and hammer energy. 2
Elevations based on topographic survey provided by PMA, datum unknown.

Boring terminated at a depth of 151.5 feet below ground surface.

Boring backfilled with cement grout. Groundwater observed at 19 feet on 11/10/21 at 2:30 PM. 107
111

19.6 18.8
5 inches Asphalt Concrete (AC)
6 inches Aggregate Base (AB)
SAND with SILT (SP-SM)
yellow-brown, moist, fine grained [FILL]
SAND with SILT (SP-SM)
red-yellow, dense, moist, fine-grained, fine rootlets
some cementation

CLAYEY SAND (SC)
yellow-brown with red mottling, dense, moist,
fine-grained
yellow-brown with gray mottling

SILTY CLAYEY SAND (SC-SM)
yellow-brown, medium dense, moist, fine-grained,
trace clay
LL = 25, PI = 5, see Figure D-1

CLAYEY SAND (SC)
yellow-brown with orange and gray mottling, medium
dense, moist, fine- to medium-grained, trace fine
subangular gravel
(11/10/21, 10:20 AM)

SILTY CLAYEY SAND (SC-SM)
yellow-brown to gray-brown, medium dense, wet,
fine-grained
dense
LL = 22, PI = 6, see Figure D-1
8 20
45 5
12 15
9 12
20 10
15 26
4 10
8 5
12 20
10 12
20 46
32 38
29 22
22 38
AC
AB
SPSM
SPSM
SC
SCSM
SC
SCSM
SC
HA
HA
HA
S&H
SPT
SPT
S&H
SPT
S&H
SPT

18.2 19.4
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
See Site Plan, Figure 2
11/10/21
Hollow Stem Auger
Ground Surface Elevation: 39.0 feet2
Sprague & Henwood (S&H), Standard Penetration Test (SPT) Date finished: 11/10/21
Hammer type: Automatic Safety
Boring location:

Date started:

Drilling method:

Samplers:

T. Toledo
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches
Logged by:

Drilled By:

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
466 FORBES BOULEVARD Log of Boring B-6 South San Francisco, California Figure:
770675102
Project No.:

PROJECT:

C-3a
PAGE 1 OF 2
TEST GEOTECH LOG 770675102_466 FORBES BOULEVARD.GPJ TEMPLATE_CA-MODIFIED - COPY.GDT 2/15/22

CLAYEY SAND (SC)
light brown, dense, wet, fine-grained

SILTY SAND (SM)
red-yellow, dense, wet, fine-grained, trace clay
9 15
20 42
SC
SPSC
SPT
Type of
Strength
Test
Fines %
Natural
Moisture
Confining
Content, %
Pressure
Lbs/Sq Ft
Shear Strength
Lbs/Sq Ft
Dry Density
Lbs/Cu Ft
DEPTH
(feet)
Blows/ 6"
SPT
N-Value
1 Sampler

LITHOLOGY
Type
Sample

SAMPLES LABORATORY TEST DATA
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
51 52
53 54
55 56
57 58
59 60

MATERIAL DESCRIPTION
466 FORBES BOULEVARD Log of Boring B-6 South San Francisco, California Figure:
770675102
Project No.:

PROJECT:

C-3b
PAGE 2 OF 2
TEST GEOTECH LOG 770675102_466 FORBES BOULEVARD.GPJ TEMPLATE_CA-MODIFIED - COPY.GDT 2/15/22 1 S&H and SPT blow counts for the last two increments were converted to SPT N-Values using factors of 0.7 and 1.2, respectively to account for sampler type and hammer energy. 2
Elevations based on topographic survey provided by PMA, datum unknown.

Boring terminated at a depth of 31.5 feet below ground surface.

Boring backfilled with cement grout.

Groundwater encountered at a depth of 25 feet on 11/10/21 at 10:20 AM.

CL
SM
SPT
SPT
SPT
12 inches thick aggregate base (AB)
CLAY with SAND (CL)
brown to dark brown, very stiff, moist, fine to
coarse sand, trace fine to coarse gravel and
organics [FILL]
SILTY SAND with GRAVEL (SM)
brown to dark brown, very dense, moist, fine to
coarse gravel [FILL]

SANDSTONE
gray, closely fractured, moderately hard, strong,
moderately weathered [BEDROCK]
25 60/
3"
60/
1"
5 9
12 7
50/
3"
18 50/
1" DEPTH (feet) Blows/ 6" SPT N-Value
1 Sampler LITHOLOGY Type Sample
Type of
Strength Test Fines % Natural Moisture Confining
Content, % Pressure Lbs/Sq Ft Shear Strength Lbs/Sq Ft
Dry Density Lbs/Cu Ft
See Site Plan, Figure 2
08/11/22
Hollow Stem Auger
Ground Surface Elevation: 41 feet2
Standard Penetration Test (SPT)
Date finished: 08/11/22
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

Logged by:

Drilled By:

K. Pettey
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
VANTAGE PHASES 2 AND 3 Log of Boring B-7 South San Francisco, California Figure:

PAGE 1 OF 1
770675103
Project No.:

PROJECT:

C-1
TEST GEOTECH LOG 770675103_VANTAGE PHASE 2.GPJ TR.GDT 10/17/22 1 SPT blow counts for the last two increments were converted to SPT N-Values using factor of 1.2, to account for sampler type and hammer energy. 2 Elevations based on topographic site plan titled "VANTAGE Site Topo" provided by Project Management Advisors on 24 August 2022.

Boring terminated at a depth of 5.1 feet below ground surface.

Boring backfilled with cement grout.

Groundwater not observed during drilling.

32.5 38.1

47.6 41.0
SC
SC
SPSC
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT

16.3 15.9

16.1 15.3

1.5 inches thick asphalt concrete (AC)

CLAYEY SAND (SC)
brown to yellow-brown, medium dense, moist,
fine-grained [FILL]
light brown to red-brown

CLAYEY SAND (SC)
brown to red-brown, loose to medium dense, moist,
fine-grained
LL = 23, PI = 10, see Figure D-1
medium dense
LL = 22, PI = 12, see Figure D-1
red-yellow to light brown with red mottling, trace
organics
LL = 25, PI = 12, see Figure D-1
LL = 26, PI = 13, see Figure D-1
red-yellow to red-brown, very dense, trace silt
red-yellow to red-brown with red mottling, dense
SAND with CLAY (SP-SC)
red-yellow to red-brown with red mottling, very
dense, moist, fine-grained
(8/12/22, 2:35PM)
red-brown to light brown with gray mottling, wet
dense
12 8
13 16
16 25
59 38
60 64
48 4
5 5
2 3
4 2
4 7
5 6
7 5
6 7
6 9
12 13
21 28
4 12
20 12
20 30
11 21
32 10
15 25 DEPTH (feet) Blows/ 6" SPT N-Value
1 Sampler LITHOLOGY Type Sample
Type of
Strength Test Fines % Natural Moisture Confining
Content, % Pressure Lbs/Sq Ft Shear Strength Lbs/Sq Ft
Dry Density Lbs/Cu Ft
See Site Plan, Figure 2
08/12/22
Hollow Stem Auger
Ground Surface Elevation: 38.4 feet2
Standard Penetration Test (SPT)
Date finished: 08/12/22
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

Logged by:

Drilled By:

K. Pettey
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
VANTAGE PHASES 2 AND 3 Log of Boring B-8 South San Francisco, California Figure:

PAGE 1 OF 1
770675103
Project No.:

PROJECT:

C-2
TEST GEOTECH LOG 770675103_VANTAGE PHASE 2.GPJ TR.GDT 10/17/22 1 SPT blow counts for the last two increments were converted to SPT N-Values using factor of 1.2, to account for sampler type and hammer energy. 2 Elevations based on topographic site plan titled "VANTAGE Site Topo" provided by Project Management Advisors on 24 August 2022.

Boring terminated at a depth of 25.5 feet below ground surface (bgs).

Boring backfilled with cement grout.

Groundwater observed at 22.5 feet bgs at 2:35 PM at time of drilling.

15.2 21.1
SM
SC
SM
SCSM
SM
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT

9.6 16.2
12 inches aggregate base (AB)

SILTY SAND (SM)
red-brown, dense, moist, fine-grained, trace
organics [FILL]

CLAYEY SAND (SC)
yellow-brown to red-brown, very dense, moist,
fine-grained, trace organics

SILTY SAND (SM)
yellow-brown to red-yellow, dense to very dense,
moist, fine-grained
dense
red-brown, medium dense
non plastic, see Figure D-1
very dense

CLAYEY SILTY SAND (SC-SM)
red-brown to light brown, dense, moist, fine-grained
LL = 19, PI = 6, see Figure D-1

SILTY SAND (SM)
red-brown to light brown, very dense, moist,
fine-grained
(8/11/22, 3:03 PM)
37 65
50 37
26 59
35 37
55 5
12 19
9 26
28 9
20 22
6 14
17 7
10 12
16 17
32 10
14 15
9 14
17 11
20 26 DEPTH (feet) Blows/ 6" SPT N-Value
1 Sampler LITHOLOGY Type Sample
Type of
Strength Test Fines % Natural Moisture Confining
Content, % Pressure Lbs/Sq Ft Shear Strength Lbs/Sq Ft
Dry Density Lbs/Cu Ft
See Site Plan, Figure 2
08/11/22
Hollow Stem Auger
Ground Surface Elevation: 37.5 feet2
Sprague & Henwood (S&H), Standard Penetration Test (SPT) Date finished: 08/11/22
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

Logged by:

Drilled By:

K. Pettey
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
VANTAGE PHASES 2 AND 3 Log of Boring B-9 South San Francisco, California Figure:

PAGE 1 OF 1
770675103
Project No.:

PROJECT:

C-3
TEST GEOTECH LOG 770675103_VANTAGE PHASE 2.GPJ TR.GDT 10/17/22 1 SPT blow counts for the last two increments were converted to SPT N-Values using factor of 1.2, to account for sampler type and hammer energy. 2 Elevations based on topographic site plan titled "VANTAGE Site Topo" provided by Project Management Advisors on 24 August 2022.

Boring terminated at a depth of 25.5 feet below ground surface (bgs).

Boring backfilled with cement grout.

Groundwater observed at 25 feet bgs at 3:30 PM at time of drilling.

57.5 CL
CL
CL
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT

14.3 2.5 inches thick asphalt concrete (AC)
SANDY CLAY with GRAVEL (CL)
brown, hard, moist, fine sand, fine to coarse
subrounded to subangular gravel [FILL]

SANDY CLAY (CL)
brown to dark brown, very stiff, moist, fine sand
yellow-brown to brown, trace fine subangular gravel
stiff, fine to coarse sand, trace fine to medium
subrounded to subangular gravel and organics
LL = 30, PI = 16, see Figure D-1

CLAY (CL)
yellow-brown to brown, stiff, moist, trace fine sand
and fine to medium subrounded to subangular
gravel
yellow-brown to gray-brown, hard, trace fine to
coarse sand and fine subangular gravel
SHALE
gray, intensely fractured, low hardness, weak,
moderately weathered [BEDROCK]

SANDSTONE
gray, intensely fractured, moderately hard, little
weathered [BEDROCK]
34 16
17 10
14 71
50 92/
8"
60/
3"
60/
3"
5 6
22 7
6 7
7 6
8 3
3 5
2 5
7 16
29 30
6 17
25 12
27 50/
2"
40 50/
3"
50/
3" DEPTH (feet) Blows/ 6" SPT N-Value
1 Sampler LITHOLOGY Type Sample
Type of
Strength Test Fines % Natural Moisture Confining
Content, % Pressure Lbs/Sq Ft Shear Strength Lbs/Sq Ft
Dry Density Lbs/Cu Ft
See Site Plan, Figure 2
08/11/22
Hollow Stem Auger
Ground Surface Elevation: 41 feet2
Standard Penetration Test (SPT)
Date finished: 08/11/22
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

Logged by:

Drilled By:

K. Pettey
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
VANTAGE PHASES 2 AND 3 Log of Boring B-10 South San Francisco, California Figure:

PAGE 1 OF 1
770675103
Project No.:

PROJECT:

C-4
TEST GEOTECH LOG 770675103_VANTAGE PHASE 2.GPJ TR.GDT 10/17/22 1 SPT blow counts for the last two increments were converted to SPT N-Values using factor of 1.2, to account for sampler type and hammer energy. 2 Elevations based on topographic site plan titled "VANTAGE Site Topo" provided by Project Management Advisors on 24 August 2022.

Boring terminated at a depth of 23.5 feet below ground surface.

Boring backfilled with cement grout.

Groundwater not observed during drilling.

28.2 51.9
SC
CL
CL
CL
CL
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT

13.9 16.6
3 inches thick aggregate base (AB)

CLAYEY SAND (SC)
brown, medium dense, moist, fine- to
coarse-grained, trace fine to coarse gravel [FILL]
LL = 25, PI = 11, see Figure D-1

SANDY CLAY (CL)
brown to yellow-brown, stiff, moist, fine to coarse
sand
LL = 35, PI = 19, see Figure D-2
CLAY with SAND (CL)
yellow-brown to light brown, very stiff, moist, fine to coarse sand
CLAY with GRAVEL (CL)
yellow-brown to light brown, hard, moist, fine to
coarse subangular gravel, trace fine to coarse sand
CLAY with SAND (CL)
gray-brown to brown with orange mottling, very stiff,
moist, fine to coarse sand
yellow-brown, hard
yellow-brown to gray-brown with orange to dark
brown mottling

SERPENTINITE
gray-brown, crushed, low hardness, friable,
moderately weathered [BEDROCK]
19 19
14 29
40 24
38 38
60/
3"
60/

5.5"
4 6
10 6
8 8
4 4
8 6
9 15
6 13
20 6
10 10
13 15
17 10
16 16
8 50/
3"
50/

5.5" DEPTH (feet) Blows/ 6" SPT N-Value
1 Sampler LITHOLOGY Type Sample
Type of
Strength Test Fines % Natural Moisture Confining
Content, % Pressure Lbs/Sq Ft Shear Strength Lbs/Sq Ft
Dry Density Lbs/Cu Ft
See Site Plan, Figure 2
08/12/22
Hollow Stem Auger
Ground Surface Elevation: 41 feet2
Standard Penetration Test (SPT)
Date finished: 08/12/22
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

Logged by:

Drilled By:

K. Pettey
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
VANTAGE PHASES 2 AND 3 Log of Boring B-11 South San Francisco, California Figure:

PAGE 1 OF 1
770675103
Project No.:

PROJECT:

C-5
TEST GEOTECH LOG 770675103_VANTAGE PHASE 2.GPJ TR.GDT 10/17/22 1 SPT blow counts for the last two increments were converted to SPT N-Values using factor of 1.2, to account for sampler type and hammer energy. 2 Elevations based on topographic site plan titled "VANTAGE Site Topo" provided by Project Management Advisors on 24 August 2022.

Boring terminated at a depth of 24.5 feet below ground surface.

Boring backfilled with cement grout.

Groundwater not observed during drilling.

22.9 31.9

26.6 28.8
SM
SC
SCSM
SC
CL
SM
CL
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT
SPT

15.8 16.1

14.1 15.4
1-inch-thick asphalt concrete (AC)
SILTY SAND with GRAVEL (SM)
brown, moist, fine-grained, fine to coarse
subrounded to subangular gravel [FILL]
CLAYEY SAND with GRAVEL (SC)
dark brown, medium dense, moist, fine-grained,
fine to coarse subrounded to subangular gravel
[FILL]
at 1.5 feet: LL = 28, PI = 9, see Figure D-2

CLAYEY SILTY SAND (SC-SM)
gray-brown to dark brown, medium dense, moist,
fine-grained, trace organics
at 3 feet: LL = 18, PI = 5, see Figure D-2
gray-brown
at 4.5 feet: LL = 20, PI = 7, see Figure D-2
red-brown to light brown, dense
increase clay content

CLAYEY SAND (SC)
red-brown, medium dense, moist, fine-grained,
trace organics
LL = 21, PI = 8, see Figure D-2
red-brown with red mottling

SANDY CLAY (CL)
red-yellow, very stiff, moist, fine sand

SILTY SAND (SM)
yellow-brown with red mottling, dense to very
dense, moist, fine- to coarse-grained, trace fine to
medium subrounded gravel, with clay

SANDY CLAY (CL)
red-brown to light brown with red mottling, medium
stiff to stiff, moist, fine sand, trace fine to medium
subrounded to subangular gravel
(8/12/2022, 5:43 PM)
wet, very stiff
hard
26 11
22 37
41 12
12 22
23 50
8 19
31 4
5 17
4 3
6 7
8 10
6 6
25 7
16 18
5 5
5 2
4 6
6 8
10 6
7 12
8 17
25 2
3 4
3 6
10 3
10 16 DEPTH (feet) Blows/ 6" SPT N-Value
1 Sampler LITHOLOGY Type Sample
Type of
Strength Test Fines % Natural Moisture Confining
Content, % Pressure Lbs/Sq Ft Shear Strength Lbs/Sq Ft
Dry Density Lbs/Cu Ft
See Site Plan, Figure 2
08/12/22
Hollow Stem Auger
Ground Surface Elevation: 34.9 feet2
Sprague & Henwood (S&H), Standard Penetration Test (SPT) Date finished: 08/12/22
Hammer type: Automatic Trip
Boring location:

Date started:

Drilling method:

Samplers:

Logged by:

Drilled By:

K. Pettey
Gregg Drilling
Hammer weight/drop: 140 lbs./30 inches

SAMPLES

LABORATORY TEST DATA
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

MATERIAL DESCRIPTION
VANTAGE PHASES 2 AND 3 Log of Boring B-12 South San Francisco, California Figure:

PAGE 1 OF 1
770675103
Project No.:

PROJECT:

C-6
TEST GEOTECH LOG 770675103_VANTAGE PHASE 2.GPJ TR.GDT 10/17/22 1 SPT blow counts for the last two increments were converted to SPT N-Values using factor of 1.2, to account for sampler type and hammer energy. 2 Elevations based on topographic site plan titled "VANTAGE Site Topo" provided by Project Management Advisors on 24 August 2022.

Boring terminated at a depth of 26 feet below ground surface (bgs).

Boring backfilled with cement grout.

Groundwater observed at 23.5 feet bgs at 5:45 PM at time of drilling.

I FRACTURING Intensity
Very little fractured
Occasionally fractured
Moderately fractured
Closely fractured
Intensely fractured Crushed Size of Pieces in Feet Greater than 4.0 1.0 to 4.0 0.5 to 1.0 0.1 to 0.5 0.05 to 0.1 Less than 0.05 II HARDNESS 1. Soft - reserved for plastic material alone. 2. Low hardness - can be gouged deeply or carved easily with a knife blade. 3. Moderately hard - can be readily scratched by a knife blade; scratch leaves a heavy trace of dust and is readily visible after the powder has been blown away. 4. Hard - can be scratched with difficulty; scratch produced a little powder and is often faintly visible. 5. Very hard - cannot be scratched with knife blade; leaves a metallic streak. III STRENGTH 1. Plastic or very low strength. 2. Friable - crumbles easily by rubbing with fingers. 3. Weak - an unfractured specimen of such material will crumble under light hammer blows. 4. Moderately strong - specimen will withstand a few heavy hammer blows before breaking. 5. Strong - specimen will withstand a few heavy ringing hammer blows and will yield with difficulty only dust and small flying fragments. 6. Very strong - specimen will resist heavy ringing hammer blows and will yield with difficulty only dust and small flying fragments. IV WEATHERING - The physical and chemical disintegration and decomposition of rocks and minerals by natural processes such as oxidation, reduction, hydration, solution, carbonation, and freezing and thawing.

D. Deep - moderate to complete mineral decomposition; extensive disintegration; deep and thorough discoloration; many fractures, all extensively coated or filled with oxides, carbonates and/or clay or silt. M. Moderate - slight change or partial decomposition of minerals; little disintegration; cementation little to unaffected. Moderate to occasionally intense discoloration. Moderately coated fractures. L. Little - no megascopic decomposition of minerals; little of no effect on normal cementation. Slight and intermittent, or localized discoloration. Few stains on fracture surfaces. F. Fresh - unaffected by weathering agents. No disintegration of discoloration. Fractures usually less numerous than joints. ADDITIONAL COMMENTS: V CONSOLIDATION OF SEDIMENTARY ROCKS: usually determined from unweathered samples. Largely dependent on cementation. U = unconsolidated P = poorly consolidated M = moderately consolidated W = well consolidated VI BEDDING OF SEDIMENTARY ROCKS Splitting Property Thickness Stratification Massive Greater than 4.0 ft. very thick-beddedBlocky 2.0 to 4.0 ft. thick bedded Slabby 0.2 to 2.0 ft. thin bedded
Flaggy 0.05 to 0.2 ft. very thin-bedded
Shaly or platy 0.01 to 0.05 ft. laminated
Papery less than 0.01 thinly laminated
1 Almaden Boulevard, Suite 590
San Jose, CA 95113
T: 408.283.3600 F: 408.283.3601 www.langan.com © 2019 Langan Langan Engineering, Environmental, Surveying, Landscape Architecture and Geology, D.P.C. Filename: C:\bms\langan-pw-01\d0266232\FG03-770675103-B-GI0101.dwg Date: 10/17/2022 Time: 15:40 User: jcarabelas Style Table: Langan.stb Layout: Rock Classification Major Divisions Gravels (More than half of coarse fraction > no. 4 sieve size) Sands (More than half of coarse fraction < no. 4 sieve size) Silts and Clays LL = < 50 Silts and Clays LL = > 50 Highly Organic Soils Symbols GWGP GMGCSWSPSMSCML CLOL MHCHOHPT GRAIN SIZE CHART Range of Grain Sizes Classification Boulders Cobbles Gravel coarse fine Sand coarse medium fine Silt and Clay U.S. Standard Sieve Size Above 12" 12" to 3" 3" to No. 4 3" to 3/4" 3/4" to No. 4 No. 4 to No. 200 No. 4 to No. 10 No. 10 to No. 40 No. 40 to No. 200 Below No. 200 Unstabilized groundwater level Stabilized groundwater level Grain Size in Millimeters Above 305 305 to 76.2 76.2 to 4.76 76.2 to 19.1 19.1 to 4.76 4.76 to 0.075 4.76 to 2.00 2.00 to 0.420 0.420 to 0.075 Below 0.075 UNIFIED SOIL CLASSIFICATION SYSTEM Typical Names Well-graded gravels or gravel-sand mixtures, little or no fines Poorly-graded gravels or gravel-sand mixtures, little or no fines Silty gravels, gravel-sand-silt mixtures Clayey gravels, gravel-sand-clay mixtures Well-graded sands or gravelly sands, little or no fines Poorly-graded sands or gravelly sands, little or no fines Silty sands, sand-silt mixtures Clayey sands, sand-clay mixtures Inorganic silts and clayey silts of low plasticity, sandy silts, gravelly silts Inorganic clays of low to medium plasticity, gravelly clays, sandy clays, lean clays Organic silts and organic silt-clays of low plasticity Inorganic silts of high plasticity Inorganic clays of high plasticity, fat clays Organic silts and clays of high plasticity Peat and other highly organic soils SAMPLE DESIGNATIONS/SYMBOLS Sample taken with Sprague & Henwood split-barrel sampler with a 3.0-inch outside diameter and a 2.43-inch inside diameter. Darkened area indicates soil recovered Classification sample taken with Standard Penetration Test sampler Undisturbed sample taken with thin-walled tube Disturbed sample Sampling attempted with no recovery Core sample Analytical laboratory sample Sample taken with Direct Push or Drive sampler SAMPLER TYPE C Core barrel CA California split-barrel sampler with 2.5-inch outside diameter and a 1.93-inch inside diameter D&M Dames & Moore piston sampler using 2.5-inch outside diameter, thin-walled tube
O Osterberg piston sampler using 3.0-inch outside
diameter, thin-walled Shelby tube
PT Pitcher tube sampler using 3.0-inch outside diameter, thin-walled Shelby tube
S&H Sprague & Henwood split-barrel sampler with a 3.0-inch outside diameter and a 2.43-inch inside diameter SPT Standard Penetration Test (SPT) split-barrel sampler with a 2.0-inch outside diameter and a 1.5-inch inside diameter ST Shelby Tube (3.0-inch outside diameter, thin-walled tube) advanced with hydraulic pressure
Fine -Grained Soils
(more than half of soil
< no. 200 sieve size)
Coarse-Grained Soils
(more than half of soil > no. 200
sieve size Sonic Filename: C:\bms\langan-pw-01\d0266232\FG03-770675103-B-GI0101.dwg Date: 10/17/2022 Time: 15:39 User: jcarabelas Style Table: Langan.stb Layout: SOIL CLASSIFICATION REPORT 1 Almaden Boulevard, Suite 590 San Jose, CA 95113 T: 408.283.3600 F: 408.283.3601 www.langan.com © 2019 Langan Langan Engineering, Environmental, Surveying, Landscape Architecture and Geology, D.P.C.

APPENDIX B

CERTIFIED ANALYTICAL REPORTS AND

CHAIN-OF-CUSTODY RECORDS
WorkOrder:

Report Created for: Langan
1 Almaden Blvd, Suite 590
San Jose, CA 95113
Project Contact: Peter Cusack
Project: 770675102; 466 Forbes Boulevard
Project P.O.:

Project Received: 12/17/2021
Analytical Report reviewed & approved for release on 12/29/2021 by:

Christine Askari
2112A92
The report shall not be reproduced except in full, without the written approval of the laboratory. The analytical results relate only to the items tested. Results reported conform to the most current NELAP standards, where applicable, unless otherwise stated in a case narrative.

Analytical Report
1534 Willow Pass Rd. Pittsburg, CA 94565 ♦ TEL: (877) 252-9262 ♦ FAX: (925) 252-9269 ♦ www.mccampbell.com CA ELAP 1644 ♦ NELAP 4033 ORELAP
Project Manager
McCampbell Analytical, Inc.
"When Quality Counts"

Page 1 of 105 ends

Glossary of Terms & Qualifier Definitions
Client: Langan
Project: 770675102; 466 Forbes Boulevard
WorkOrder: 2112A92
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Glossary Abbreviation
%D Serial Dilution Percent Difference
95% Interval 95% Confident Interval
CPT Consumer Product Testing not NELAP Accredited
DF Dilution Factor
DI WET (DISTLC) Waste Extraction Test using DI water
DISS Dissolved (direct analysis of 0.45 µm filtered and acidified water sample) DLT Dilution Test (Serial Dilution)
DUP Duplicate
EDL Estimated Detection Limit
ERS External reference sample. Second source calibration verification.

ITEF International Toxicity Equivalence Factor
LCS Laboratory Control Sample
LQL Lowest Quantitation Level
MB Method Blank
MB % Rec % Recovery of Surrogate in Method Blank, if applicable MDL Method Detection Limit
ML Minimum Level of Quantitation
MS Matrix Spike
MSD Matrix Spike Duplicate
N/A Not Applicable
ND Not detected at or above the indicated MDL or RL
NR Data Not Reported due to matrix interference or insufficient sample amount.

PDS Post Digestion Spike
PDSD Post Digestion Spike Duplicate
PF Prep Factor
RD Relative Difference
RL Reporting Limit (The RL is the lowest calibration standard in a multipoint calibration.) RPD Relative Percent Deviation
RRT Relative Retention Time
SPK Val Spike Value
SPKRef Val Spike Reference Value
SPLP Synthetic Precipitation Leachate Procedure
ST Sorbent Tube
TCLP Toxicity Characteristic Leachate Procedure
TEQ Toxicity Equivalents
TZA TimeZone Net Adjustment for sample collected outside of MAI's UTC.

WET (STLC) Waste Extraction Test (Soluble Threshold Limit Concentration)

Page 2 of 105 ends

P Agreement between quantitative confirmation results exceed method recommended limits S Surrogate recovery outside accepted recovery limits.
a3 Sample diluted due to high organic content interfering with quantitative/or qualitative analysis. c1 Surrogate recovery outside of the control limits due to the dilution of the sample. c2 Surrogate recovery outside of the control limits due to matrix interference. e7 Oil range compounds are detected.
k10 CARB 435 Exception 1 - No asbestos detected. The limit of quantitation (LOQ) = 0.25%. k12 Asbestos observed but no asbestos points counted
k15 Chrysotile
Quality Control Qualifiers
F2 LCS/LCSD recovery and/or RPD/RSD is out of acceptance criteria.

F5 LCS/LCSD recovery is outside of acceptance limits; however, the data is acceptable based upon the TNI allowable marginal exceedances.

Page 3 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/21/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640Am/3630Cm
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
B-4-1.5 2112A92-001A Soil 11/10/2021 GC23 12272151.d 236038 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND H 0.00010 1 12/28/2021 00:08
a-BHC ND H 0.00010 1 12/28/2021 00:08
b-BHC ND H 0.00030 1 12/28/2021 00:08
d-BHC ND H 0.00020 1 12/28/2021 00:08
g-BHC ND H 0.00010 1 12/28/2021 00:08
Chlordane (Technical) ND H 0.0025 1 12/28/2021 00:08
a-Chlordane 0.00020 H 0.00010 1 12/28/2021 00:08
g-Chlordane ND H 0.00010 1 12/28/2021 00:08
p,p-DDD ND H 0.00010 1 12/28/2021 00:08
p,p-DDE ND H 0.00010 1 12/28/2021 00:08
p,p-DDT 0.00016 PH 0.00010 1 12/28/2021 00:08
Dieldrin ND H 0.00010 1 12/28/2021 00:08
Endosulfan I ND H 0.00010 1 12/28/2021 00:08
Endosulfan II ND H 0.00010 1 12/28/2021 00:08
Endosulfan sulfate ND H 0.00010 1 12/28/2021 00:08
Endrin ND H 0.00010 1 12/28/2021 00:08
Endrin aldehyde ND H 0.00010 1 12/28/2021 00:08
Endrin ketone ND H 0.00010 1 12/28/2021 00:08
Heptachlor ND H 0.00010 1 12/28/2021 00:08
Heptachlor epoxide ND H 0.00010 1 12/28/2021 00:08
Hexachlorobenzene ND H 0.0010 1 12/28/2021 00:08
Hexachlorocyclopentadiene ND H 0.0020 1 12/28/2021 00:08 Methoxychlor ND H 0.00020 1 12/28/2021 00:08
Toxaphene ND H 0.0050 1 12/28/2021 00:08
Aroclor1016 ND H 0.0050 1 12/28/2021 00:08
Aroclor1221 ND H 0.0050 1 12/28/2021 00:08
Aroclor1232 ND H 0.0050 1 12/28/2021 00:08
Aroclor1242 ND H 0.0050 1 12/28/2021 00:08
Aroclor1248 ND H 0.0050 1 12/28/2021 00:08
Aroclor1254 ND H 0.0050 1 12/28/2021 00:08
Aroclor1260 ND H 0.0050 1 12/28/2021 00:08
PCBs, total ND H 0.0050 1 12/28/2021 00:08
Surrogates REC (%) Qualifiers Limits
Analyst(s): CN
Decachlorobiphenyl 140 H 20-145 12/28/2021 00:08
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/21/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640Am/3630Cm
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
B-5-1.5 2112A92-005A Soil 11/10/2021 GC23 12272152.d 236038 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND H 0.00010 1 12/28/2021 00:23
a-BHC ND H 0.00010 1 12/28/2021 00:23
b-BHC ND H 0.00030 1 12/28/2021 00:23
d-BHC ND H 0.00020 1 12/28/2021 00:23
g-BHC ND H 0.00010 1 12/28/2021 00:23
Chlordane (Technical) ND H 0.0025 1 12/28/2021 00:23
a-Chlordane ND H 0.00010 1 12/28/2021 00:23
g-Chlordane ND H 0.00010 1 12/28/2021 00:23
p,p-DDD 0.00014 H 0.00010 1 12/28/2021 00:23
p,p-DDE 0.00011 H 0.00010 1 12/28/2021 00:23
p,p-DDT 0.00026 H 0.00010 1 12/28/2021 00:23
Dieldrin ND H 0.00010 1 12/28/2021 00:23
Endosulfan I ND H 0.00010 1 12/28/2021 00:23
Endosulfan II ND H 0.00010 1 12/28/2021 00:23
Endosulfan sulfate ND H 0.00010 1 12/28/2021 00:23
Endrin ND H 0.00010 1 12/28/2021 00:23
Endrin aldehyde ND H 0.00010 1 12/28/2021 00:23
Endrin ketone 0.00016 H 0.00010 1 12/28/2021 00:23
Heptachlor ND H 0.00010 1 12/28/2021 00:23
Heptachlor epoxide ND H 0.00010 1 12/28/2021 00:23
Hexachlorobenzene ND H 0.0010 1 12/28/2021 00:23
Hexachlorocyclopentadiene ND H 0.0020 1 12/28/2021 00:23 Methoxychlor ND H 0.00020 1 12/28/2021 00:23
Toxaphene ND H 0.0050 1 12/28/2021 00:23
Aroclor1016 ND H 0.0050 1 12/28/2021 00:23
Aroclor1221 ND H 0.0050 1 12/28/2021 00:23
Aroclor1232 ND H 0.0050 1 12/28/2021 00:23
Aroclor1242 ND H 0.0050 1 12/28/2021 00:23
Aroclor1248 ND H 0.0050 1 12/28/2021 00:23
Aroclor1254 ND H 0.0050 1 12/28/2021 00:23
Aroclor1260 ND H 0.0050 1 12/28/2021 00:23
PCBs, total ND H 0.0050 1 12/28/2021 00:23
Surrogates REC (%) Qualifiers Limits
Analyst(s): CN
Decachlorobiphenyl 123 H 20-145 12/28/2021 00:23
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/21/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640Am/3630Cm
Analytical Method: SW8081A/8082
Unit: mg/kg
Organochlorine Pesticides + PCBs
B-6-1.5 2112A92-009A Soil 11/10/2021 GC23 12232152.d 236038 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Aldrin ND H 0.00010 1 12/23/2021 23:33
a-BHC ND H 0.00010 1 12/23/2021 23:33
b-BHC ND H 0.00030 1 12/23/2021 23:33
d-BHC ND H 0.00020 1 12/23/2021 23:33
g-BHC ND H 0.00010 1 12/23/2021 23:33
Chlordane (Technical) ND H 0.0025 1 12/23/2021 23:33
a-Chlordane ND H 0.00010 1 12/23/2021 23:33
g-Chlordane ND H 0.00010 1 12/23/2021 23:33
p,p-DDD ND H 0.00010 1 12/23/2021 23:33
p,p-DDE ND H 0.00010 1 12/23/2021 23:33
p,p-DDT ND H 0.00010 1 12/23/2021 23:33
Dieldrin ND H 0.00010 1 12/23/2021 23:33
Endosulfan I ND H 0.00010 1 12/23/2021 23:33
Endosulfan II ND H 0.00010 1 12/23/2021 23:33
Endosulfan sulfate ND H 0.00010 1 12/23/2021 23:33
Endrin ND H 0.00010 1 12/23/2021 23:33
Endrin aldehyde ND H 0.00010 1 12/23/2021 23:33
Endrin ketone ND H 0.00010 1 12/23/2021 23:33
Heptachlor ND H 0.00010 1 12/23/2021 23:33
Heptachlor epoxide ND H 0.00010 1 12/23/2021 23:33
Hexachlorobenzene ND H 0.0010 1 12/23/2021 23:33
Hexachlorocyclopentadiene ND H 0.0020 1 12/23/2021 23:33 Methoxychlor ND H 0.00020 1 12/23/2021 23:33
Toxaphene ND H 0.0050 1 12/23/2021 23:33
Aroclor1016 ND H 0.0050 1 12/23/2021 23:33
Aroclor1221 ND H 0.0050 1 12/23/2021 23:33
Aroclor1232 ND H 0.0050 1 12/23/2021 23:33
Aroclor1242 ND H 0.0050 1 12/23/2021 23:33
Aroclor1248 ND H 0.0050 1 12/23/2021 23:33
Aroclor1254 ND H 0.0050 1 12/23/2021 23:33
Aroclor1260 ND H 0.0050 1 12/23/2021 23:33
PCBs, total ND H 0.0050 1 12/23/2021 23:33
Surrogates REC (%) Qualifiers Limits
Analyst(s): CN
Decachlorobiphenyl 112 H 20-145 12/23/2021 23:33
CA ELAP 1644 • NELAP 4033ORELAP

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-4-1.5 2112A92-001A Soil 11/10/2021 GC38 12272112.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 18:30
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 18:30 Benzene ND H 0.0050 1 12/27/2021 18:30
Bromobenzene ND H 0.0050 1 12/27/2021 18:30
Bromochloromethane ND H 0.0050 1 12/27/2021 18:30
Bromodichloromethane ND H 0.0050 1 12/27/2021 18:30
Bromoform ND H 0.0050 1 12/27/2021 18:30
Bromomethane ND H 0.0050 1 12/27/2021 18:30
2-Butanone (MEK) ND H 0.10 1 12/27/2021 18:30
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 18:30
n-Butyl benzene ND H 0.0050 1 12/27/2021 18:30
sec-Butyl benzene ND H 0.0050 1 12/27/2021 18:30
tert-Butyl benzene ND H 0.0050 1 12/27/2021 18:30
Carbon Disulfide ND H 0.0050 1 12/27/2021 18:30
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 18:30
Chlorobenzene ND H 0.0050 1 12/27/2021 18:30
Chloroethane ND H 0.0050 1 12/27/2021 18:30
Chloroform ND H 0.0050 1 12/27/2021 18:30
Chloromethane ND H 0.0050 1 12/27/2021 18:30
2-Chlorotoluene ND H 0.0050 1 12/27/2021 18:30
4-Chlorotoluene ND H 0.0050 1 12/27/2021 18:30
Dibromochloromethane ND H 0.0050 1 12/27/2021 18:30
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 18:30 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 18:30 Dibromomethane ND H 0.0050 1 12/27/2021 18:30
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 18:30
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 18:30
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 18:30
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 18:30
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 18:30
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 18:30 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 18:30
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 18:30
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 18:30 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 18:30
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 18:30
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 18:30
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-4-1.5 2112A92-001A Soil 11/10/2021 GC38 12272112.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 18:30
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 18:30
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 18:30 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 18:30 Ethylbenzene ND H 0.0050 1 12/27/2021 18:30
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 18:30 Freon 113 ND H 0.0050 1 12/27/2021 18:30
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 18:30
Hexachloroethane ND H 0.0050 1 12/27/2021 18:30
2-Hexanone ND H 0.0050 1 12/27/2021 18:30
Isopropylbenzene ND H 0.0050 1 12/27/2021 18:30
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 18:30
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 18:30 Methylene chloride ND H 0.020 1 12/27/2021 18:30
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 18:30 Naphthalene ND H 0.0050 1 12/27/2021 18:30
n-Propyl benzene ND H 0.0050 1 12/27/2021 18:30
Styrene ND H 0.0050 1 12/27/2021 18:30
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 18:30 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 18:30 Tetrachloroethene ND H 0.0050 1 12/27/2021 18:30
Toluene ND H 0.0050 1 12/27/2021 18:30
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 18:30
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 18:30
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 18:30
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 18:30
Trichloroethene ND H 0.0050 1 12/27/2021 18:30
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 18:30
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 18:30
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 18:30
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 18:30
Vinyl Chloride ND H 0.00025 1 12/27/2021 18:30
m,p-Xylene ND H 0.0050 1 12/27/2021 18:30
o-Xylene ND H 0.0050 1 12/27/2021 18:30
Xylenes, Total ND H 0.0050 1 12/27/2021 18:30
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Page 9 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-4-3.0 2112A92-002A Soil 11/10/2021 GC38 12272113.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 19:07
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 19:07 Benzene ND H 0.0050 1 12/27/2021 19:07
Bromobenzene ND H 0.0050 1 12/27/2021 19:07
Bromochloromethane ND H 0.0050 1 12/27/2021 19:07
Bromodichloromethane ND H 0.0050 1 12/27/2021 19:07
Bromoform ND H 0.0050 1 12/27/2021 19:07
Bromomethane ND H 0.0050 1 12/27/2021 19:07
2-Butanone (MEK) ND H 0.10 1 12/27/2021 19:07
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 19:07
n-Butyl benzene ND H 0.0050 1 12/27/2021 19:07
sec-Butyl benzene ND H 0.0050 1 12/27/2021 19:07
tert-Butyl benzene ND H 0.0050 1 12/27/2021 19:07
Carbon Disulfide ND H 0.0050 1 12/27/2021 19:07
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 19:07
Chlorobenzene ND H 0.0050 1 12/27/2021 19:07
Chloroethane ND H 0.0050 1 12/27/2021 19:07
Chloroform ND H 0.0050 1 12/27/2021 19:07
Chloromethane ND H 0.0050 1 12/27/2021 19:07
2-Chlorotoluene ND H 0.0050 1 12/27/2021 19:07
4-Chlorotoluene ND H 0.0050 1 12/27/2021 19:07
Dibromochloromethane ND H 0.0050 1 12/27/2021 19:07
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 19:07 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 19:07 Dibromomethane ND H 0.0050 1 12/27/2021 19:07
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 19:07
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 19:07
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 19:07
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 19:07
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 19:07
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 19:07 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 19:07
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 19:07
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 19:07 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 19:07
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 19:07
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 19:07
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 10 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-4-3.0 2112A92-002A Soil 11/10/2021 GC38 12272113.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 19:07
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 19:07
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 19:07 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 19:07 Ethylbenzene ND H 0.0050 1 12/27/2021 19:07
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 19:07 Freon 113 ND H 0.0050 1 12/27/2021 19:07
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 19:07
Hexachloroethane ND H 0.0050 1 12/27/2021 19:07
2-Hexanone ND H 0.0050 1 12/27/2021 19:07
Isopropylbenzene ND H 0.0050 1 12/27/2021 19:07
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 19:07
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 19:07 Methylene chloride ND H 0.020 1 12/27/2021 19:07
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 19:07 Naphthalene ND H 0.0050 1 12/27/2021 19:07
n-Propyl benzene ND H 0.0050 1 12/27/2021 19:07
Styrene ND H 0.0050 1 12/27/2021 19:07
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 19:07 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 19:07 Tetrachloroethene ND H 0.0050 1 12/27/2021 19:07
Toluene ND H 0.0050 1 12/27/2021 19:07
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 19:07
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 19:07
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 19:07
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 19:07
Trichloroethene ND H 0.0050 1 12/27/2021 19:07
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 19:07
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 19:07
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 19:07
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 19:07
Vinyl Chloride ND H 0.00025 1 12/27/2021 19:07
m,p-Xylene ND H 0.0050 1 12/27/2021 19:07
o-Xylene ND H 0.0050 1 12/27/2021 19:07
Xylenes, Total ND H 0.0050 1 12/27/2021 19:07
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-4-4.5 2112A92-003A Soil 11/10/2021 GC38 12272114.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 19:44
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 19:44 Benzene ND H 0.0050 1 12/27/2021 19:44
Bromobenzene ND H 0.0050 1 12/27/2021 19:44
Bromochloromethane ND H 0.0050 1 12/27/2021 19:44
Bromodichloromethane ND H 0.0050 1 12/27/2021 19:44
Bromoform ND H 0.0050 1 12/27/2021 19:44
Bromomethane ND H 0.0050 1 12/27/2021 19:44
2-Butanone (MEK) ND H 0.10 1 12/27/2021 19:44
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 19:44
n-Butyl benzene ND H 0.0050 1 12/27/2021 19:44
sec-Butyl benzene ND H 0.0050 1 12/27/2021 19:44
tert-Butyl benzene ND H 0.0050 1 12/27/2021 19:44
Carbon Disulfide ND H 0.0050 1 12/27/2021 19:44
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 19:44
Chlorobenzene ND H 0.0050 1 12/27/2021 19:44
Chloroethane ND H 0.0050 1 12/27/2021 19:44
Chloroform ND H 0.0050 1 12/27/2021 19:44
Chloromethane ND H 0.0050 1 12/27/2021 19:44
2-Chlorotoluene ND H 0.0050 1 12/27/2021 19:44
4-Chlorotoluene ND H 0.0050 1 12/27/2021 19:44
Dibromochloromethane ND H 0.0050 1 12/27/2021 19:44
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 19:44 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 19:44 Dibromomethane ND H 0.0050 1 12/27/2021 19:44
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 19:44
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 19:44
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 19:44
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 19:44
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 19:44
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 19:44 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 19:44
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 19:44
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 19:44 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 19:44
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 19:44
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 19:44
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 13 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-4-4.5 2112A92-003A Soil 11/10/2021 GC38 12272114.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 19:44
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 19:44
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 19:44 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 19:44 Ethylbenzene ND H 0.0050 1 12/27/2021 19:44
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 19:44 Freon 113 ND H 0.0050 1 12/27/2021 19:44
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 19:44
Hexachloroethane ND H 0.0050 1 12/27/2021 19:44
2-Hexanone ND H 0.0050 1 12/27/2021 19:44
Isopropylbenzene ND H 0.0050 1 12/27/2021 19:44
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 19:44
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 19:44 Methylene chloride ND H 0.020 1 12/27/2021 19:44
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 19:44 Naphthalene ND H 0.0050 1 12/27/2021 19:44
n-Propyl benzene ND H 0.0050 1 12/27/2021 19:44
Styrene ND H 0.0050 1 12/27/2021 19:44
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 19:44 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 19:44 Tetrachloroethene ND H 0.0050 1 12/27/2021 19:44
Toluene ND H 0.0050 1 12/27/2021 19:44
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 19:44
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 19:44
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 19:44
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 19:44
Trichloroethene ND H 0.0050 1 12/27/2021 19:44
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 19:44
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 19:44
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 19:44
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 19:44
Vinyl Chloride ND H 0.00025 1 12/27/2021 19:44
m,p-Xylene ND H 0.0050 1 12/27/2021 19:44
o-Xylene ND H 0.0050 1 12/27/2021 19:44
Xylenes, Total ND H 0.0050 1 12/27/2021 19:44
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-5-1.5 2112A92-005A Soil 11/10/2021 GC38 12272115.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 20:21
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 20:21 Benzene ND H 0.0050 1 12/27/2021 20:21
Bromobenzene ND H 0.0050 1 12/27/2021 20:21
Bromochloromethane ND H 0.0050 1 12/27/2021 20:21
Bromodichloromethane ND H 0.0050 1 12/27/2021 20:21
Bromoform ND H 0.0050 1 12/27/2021 20:21
Bromomethane ND H 0.0050 1 12/27/2021 20:21
2-Butanone (MEK) ND H 0.10 1 12/27/2021 20:21
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 20:21
n-Butyl benzene ND H 0.0050 1 12/27/2021 20:21
sec-Butyl benzene ND H 0.0050 1 12/27/2021 20:21
tert-Butyl benzene ND H 0.0050 1 12/27/2021 20:21
Carbon Disulfide ND H 0.0050 1 12/27/2021 20:21
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 20:21
Chlorobenzene ND H 0.0050 1 12/27/2021 20:21
Chloroethane ND H 0.0050 1 12/27/2021 20:21
Chloroform ND H 0.0050 1 12/27/2021 20:21
Chloromethane ND H 0.0050 1 12/27/2021 20:21
2-Chlorotoluene ND H 0.0050 1 12/27/2021 20:21
4-Chlorotoluene ND H 0.0050 1 12/27/2021 20:21
Dibromochloromethane ND H 0.0050 1 12/27/2021 20:21
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 20:21 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 20:21 Dibromomethane ND H 0.0050 1 12/27/2021 20:21
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 20:21
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 20:21
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 20:21
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 20:21
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 20:21
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 20:21 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 20:21
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 20:21
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 20:21 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 20:21
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 20:21
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 20:21
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-5-1.5 2112A92-005A Soil 11/10/2021 GC38 12272115.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 20:21
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 20:21
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 20:21 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 20:21 Ethylbenzene ND H 0.0050 1 12/27/2021 20:21
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 20:21 Freon 113 ND H 0.0050 1 12/27/2021 20:21
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 20:21
Hexachloroethane ND H 0.0050 1 12/27/2021 20:21
2-Hexanone ND H 0.0050 1 12/27/2021 20:21
Isopropylbenzene ND H 0.0050 1 12/27/2021 20:21
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 20:21
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 20:21 Methylene chloride ND H 0.020 1 12/27/2021 20:21
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 20:21 Naphthalene ND H 0.0050 1 12/27/2021 20:21
n-Propyl benzene ND H 0.0050 1 12/27/2021 20:21
Styrene ND H 0.0050 1 12/27/2021 20:21
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 20:21 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 20:21 Tetrachloroethene ND H 0.0050 1 12/27/2021 20:21
Toluene ND H 0.0050 1 12/27/2021 20:21
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 20:21
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 20:21
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 20:21
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 20:21
Trichloroethene ND H 0.0050 1 12/27/2021 20:21
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 20:21
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 20:21
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 20:21
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 20:21
Vinyl Chloride ND H 0.00025 1 12/27/2021 20:21
m,p-Xylene ND H 0.0050 1 12/27/2021 20:21
o-Xylene ND H 0.0050 1 12/27/2021 20:21
Xylenes, Total ND H 0.0050 1 12/27/2021 20:21
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-5-3.0 2112A92-006A Soil 11/10/2021 GC38 12272116.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 20:59
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 20:59 Benzene ND H 0.0050 1 12/27/2021 20:59
Bromobenzene ND H 0.0050 1 12/27/2021 20:59
Bromochloromethane ND H 0.0050 1 12/27/2021 20:59
Bromodichloromethane ND H 0.0050 1 12/27/2021 20:59
Bromoform ND H 0.0050 1 12/27/2021 20:59
Bromomethane ND H 0.0050 1 12/27/2021 20:59
2-Butanone (MEK) ND H 0.10 1 12/27/2021 20:59
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 20:59
n-Butyl benzene ND H 0.0050 1 12/27/2021 20:59
sec-Butyl benzene ND H 0.0050 1 12/27/2021 20:59
tert-Butyl benzene ND H 0.0050 1 12/27/2021 20:59
Carbon Disulfide ND H 0.0050 1 12/27/2021 20:59
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 20:59
Chlorobenzene ND H 0.0050 1 12/27/2021 20:59
Chloroethane ND H 0.0050 1 12/27/2021 20:59
Chloroform ND H 0.0050 1 12/27/2021 20:59
Chloromethane ND H 0.0050 1 12/27/2021 20:59
2-Chlorotoluene ND H 0.0050 1 12/27/2021 20:59
4-Chlorotoluene ND H 0.0050 1 12/27/2021 20:59
Dibromochloromethane ND H 0.0050 1 12/27/2021 20:59
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 20:59 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 20:59 Dibromomethane ND H 0.0050 1 12/27/2021 20:59
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 20:59
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 20:59
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 20:59
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 20:59
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 20:59
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 20:59 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 20:59
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 20:59
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 20:59 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 20:59
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 20:59
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 20:59
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 19 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-5-3.0 2112A92-006A Soil 11/10/2021 GC38 12272116.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 20:59
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 20:59
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 20:59 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 20:59 Ethylbenzene ND H 0.0050 1 12/27/2021 20:59
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 20:59 Freon 113 ND H 0.0050 1 12/27/2021 20:59
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 20:59
Hexachloroethane ND H 0.0050 1 12/27/2021 20:59
2-Hexanone ND H 0.0050 1 12/27/2021 20:59
Isopropylbenzene ND H 0.0050 1 12/27/2021 20:59
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 20:59
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 20:59 Methylene chloride ND H 0.020 1 12/27/2021 20:59
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 20:59 Naphthalene ND H 0.0050 1 12/27/2021 20:59
n-Propyl benzene ND H 0.0050 1 12/27/2021 20:59
Styrene ND H 0.0050 1 12/27/2021 20:59
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 20:59 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 20:59 Tetrachloroethene ND H 0.0050 1 12/27/2021 20:59
Toluene ND H 0.0050 1 12/27/2021 20:59
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 20:59
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 20:59
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 20:59
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 20:59
Trichloroethene ND H 0.0050 1 12/27/2021 20:59
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 20:59
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 20:59
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 20:59
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 20:59
Vinyl Chloride ND H 0.00025 1 12/27/2021 20:59
m,p-Xylene ND H 0.0050 1 12/27/2021 20:59
o-Xylene ND H 0.0050 1 12/27/2021 20:59
Xylenes, Total ND H 0.0050 1 12/27/2021 20:59
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Page 21 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-5-6.0 2112A92-008A Soil 11/10/2021 GC38 12272117.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 21:36
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 21:36 Benzene ND H 0.0050 1 12/27/2021 21:36
Bromobenzene ND H 0.0050 1 12/27/2021 21:36
Bromochloromethane ND H 0.0050 1 12/27/2021 21:36
Bromodichloromethane ND H 0.0050 1 12/27/2021 21:36
Bromoform ND H 0.0050 1 12/27/2021 21:36
Bromomethane ND H 0.0050 1 12/27/2021 21:36
2-Butanone (MEK) ND H 0.10 1 12/27/2021 21:36
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 21:36
n-Butyl benzene ND H 0.0050 1 12/27/2021 21:36
sec-Butyl benzene ND H 0.0050 1 12/27/2021 21:36
tert-Butyl benzene ND H 0.0050 1 12/27/2021 21:36
Carbon Disulfide ND H 0.0050 1 12/27/2021 21:36
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 21:36
Chlorobenzene ND H 0.0050 1 12/27/2021 21:36
Chloroethane ND H 0.0050 1 12/27/2021 21:36
Chloroform ND H 0.0050 1 12/27/2021 21:36
Chloromethane ND H 0.0050 1 12/27/2021 21:36
2-Chlorotoluene ND H 0.0050 1 12/27/2021 21:36
4-Chlorotoluene ND H 0.0050 1 12/27/2021 21:36
Dibromochloromethane ND H 0.0050 1 12/27/2021 21:36
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 21:36 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 21:36 Dibromomethane ND H 0.0050 1 12/27/2021 21:36
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 21:36
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 21:36
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 21:36
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 21:36
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 21:36
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 21:36 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 21:36
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 21:36
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 21:36 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 21:36
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 21:36
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 21:36
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 22 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-5-6.0 2112A92-008A Soil 11/10/2021 GC38 12272117.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 21:36
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 21:36
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 21:36 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 21:36 Ethylbenzene ND H 0.0050 1 12/27/2021 21:36
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 21:36 Freon 113 ND H 0.0050 1 12/27/2021 21:36
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 21:36
Hexachloroethane ND H 0.0050 1 12/27/2021 21:36
2-Hexanone ND H 0.0050 1 12/27/2021 21:36
Isopropylbenzene ND H 0.0050 1 12/27/2021 21:36
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 21:36
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 21:36 Methylene chloride ND H 0.020 1 12/27/2021 21:36
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 21:36 Naphthalene ND H 0.0050 1 12/27/2021 21:36
n-Propyl benzene ND H 0.0050 1 12/27/2021 21:36
Styrene ND H 0.0050 1 12/27/2021 21:36
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 21:36 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 21:36 Tetrachloroethene ND H 0.0050 1 12/27/2021 21:36
Toluene ND H 0.0050 1 12/27/2021 21:36
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 21:36
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 21:36
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 21:36
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 21:36
Trichloroethene ND H 0.0050 1 12/27/2021 21:36
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 21:36
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 21:36
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 21:36
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 21:36
Vinyl Chloride ND H 0.00025 1 12/27/2021 21:36
m,p-Xylene ND H 0.0050 1 12/27/2021 21:36
o-Xylene ND H 0.0050 1 12/27/2021 21:36
Xylenes, Total ND H 0.0050 1 12/27/2021 21:36
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-6-1.5 2112A92-009A Soil 11/10/2021 GC16 12272126.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/27/2021 23:52
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/27/2021 23:52 Benzene ND H 0.0050 1 12/27/2021 23:52
Bromobenzene ND H 0.0050 1 12/27/2021 23:52
Bromochloromethane ND H 0.0050 1 12/27/2021 23:52
Bromodichloromethane ND H 0.0050 1 12/27/2021 23:52
Bromoform ND H 0.0050 1 12/27/2021 23:52
Bromomethane ND H 0.0050 1 12/27/2021 23:52
2-Butanone (MEK) ND H 0.10 1 12/27/2021 23:52
t-Butyl alcohol (TBA) ND H 0.050 1 12/27/2021 23:52
n-Butyl benzene ND H 0.0050 1 12/27/2021 23:52
sec-Butyl benzene ND H 0.0050 1 12/27/2021 23:52
tert-Butyl benzene ND H 0.0050 1 12/27/2021 23:52
Carbon Disulfide ND H 0.0050 1 12/27/2021 23:52
Carbon Tetrachloride ND H 0.0050 1 12/27/2021 23:52
Chlorobenzene ND H 0.0050 1 12/27/2021 23:52
Chloroethane ND H 0.0050 1 12/27/2021 23:52
Chloroform ND H 0.0050 1 12/27/2021 23:52
Chloromethane ND H 0.0050 1 12/27/2021 23:52
2-Chlorotoluene ND H 0.0050 1 12/27/2021 23:52
4-Chlorotoluene ND H 0.0050 1 12/27/2021 23:52
Dibromochloromethane ND H 0.0050 1 12/27/2021 23:52
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/27/2021 23:52 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/27/2021 23:52 Dibromomethane ND H 0.0050 1 12/27/2021 23:52
1,2-Dichlorobenzene ND H 0.0050 1 12/27/2021 23:52
1,3-Dichlorobenzene ND H 0.0050 1 12/27/2021 23:52
1,4-Dichlorobenzene ND H 0.0050 1 12/27/2021 23:52
Dichlorodifluoromethane ND H 0.0050 1 12/27/2021 23:52
1,1-Dichloroethane ND H 0.0050 1 12/27/2021 23:52
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/27/2021 23:52 1,1-Dichloroethene ND H 0.0050 1 12/27/2021 23:52
cis-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 23:52
trans-1,2-Dichloroethene ND H 0.0050 1 12/27/2021 23:52 1,2-Dichloropropane ND H 0.0050 1 12/27/2021 23:52
1,3-Dichloropropane ND H 0.0050 1 12/27/2021 23:52
2,2-Dichloropropane ND H 0.0050 1 12/27/2021 23:52
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-6-1.5 2112A92-009A Soil 11/10/2021 GC16 12272126.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/27/2021 23:52
cis-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 23:52
trans-1,3-Dichloropropene ND H 0.0050 1 12/27/2021 23:52 Diisopropyl ether (DIPE) ND H 0.0050 1 12/27/2021 23:52 Ethylbenzene ND H 0.0050 1 12/27/2021 23:52
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/27/2021 23:52 Freon 113 ND H 0.0050 1 12/27/2021 23:52
Hexachlorobutadiene ND H 0.0050 1 12/27/2021 23:52
Hexachloroethane ND H 0.0050 1 12/27/2021 23:52
2-Hexanone ND H 0.0050 1 12/27/2021 23:52
Isopropylbenzene ND H 0.0050 1 12/27/2021 23:52
4-Isopropyl toluene ND H 0.0050 1 12/27/2021 23:52
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/27/2021 23:52 Methylene chloride ND H 0.020 1 12/27/2021 23:52
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/27/2021 23:52 Naphthalene ND H 0.0050 1 12/27/2021 23:52
n-Propyl benzene ND H 0.0050 1 12/27/2021 23:52
Styrene ND H 0.0050 1 12/27/2021 23:52
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 23:52 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/27/2021 23:52 Tetrachloroethene ND H 0.0050 1 12/27/2021 23:52
Toluene ND H 0.0050 1 12/27/2021 23:52
1,2,3-Trichlorobenzene ND H 0.0050 1 12/27/2021 23:52
1,2,4-Trichlorobenzene ND H 0.0050 1 12/27/2021 23:52
1,1,1-Trichloroethane ND H 0.0050 1 12/27/2021 23:52
1,1,2-Trichloroethane ND H 0.0050 1 12/27/2021 23:52
Trichloroethene ND H 0.0050 1 12/27/2021 23:52
Trichlorofluoromethane ND H 0.0050 1 12/27/2021 23:52
1,2,3-Trichloropropane ND H 0.00025 1 12/27/2021 23:52
1,2,4-Trimethylbenzene ND H 0.0050 1 12/27/2021 23:52
1,3,5-Trimethylbenzene ND H 0.0050 1 12/27/2021 23:52
Vinyl Chloride ND H 0.00025 1 12/27/2021 23:52
m,p-Xylene ND H 0.0050 1 12/27/2021 23:52
o-Xylene ND H 0.0050 1 12/27/2021 23:52
Xylenes, Total ND H 0.0050 1 12/27/2021 23:52
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-6-3.0 2112A92-010A Soil 11/10/2021 GC16 12272134.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/28/2021 05:21
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/28/2021 05:21 Benzene ND H 0.0050 1 12/28/2021 05:21
Bromobenzene ND H 0.0050 1 12/28/2021 05:21
Bromochloromethane ND H 0.0050 1 12/28/2021 05:21
Bromodichloromethane ND H 0.0050 1 12/28/2021 05:21
Bromoform ND H 0.0050 1 12/28/2021 05:21
Bromomethane ND H 0.0050 1 12/28/2021 05:21
2-Butanone (MEK) ND H 0.10 1 12/28/2021 05:21
t-Butyl alcohol (TBA) ND H 0.050 1 12/28/2021 05:21
n-Butyl benzene ND H 0.0050 1 12/28/2021 05:21
sec-Butyl benzene ND H 0.0050 1 12/28/2021 05:21
tert-Butyl benzene ND H 0.0050 1 12/28/2021 05:21
Carbon Disulfide ND H 0.0050 1 12/28/2021 05:21
Carbon Tetrachloride ND H 0.0050 1 12/28/2021 05:21
Chlorobenzene ND H 0.0050 1 12/28/2021 05:21
Chloroethane ND H 0.0050 1 12/28/2021 05:21
Chloroform ND H 0.0050 1 12/28/2021 05:21
Chloromethane ND H 0.0050 1 12/28/2021 05:21
2-Chlorotoluene ND H 0.0050 1 12/28/2021 05:21
4-Chlorotoluene ND H 0.0050 1 12/28/2021 05:21
Dibromochloromethane ND H 0.0050 1 12/28/2021 05:21
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/28/2021 05:21 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/28/2021 05:21 Dibromomethane ND H 0.0050 1 12/28/2021 05:21
1,2-Dichlorobenzene ND H 0.0050 1 12/28/2021 05:21
1,3-Dichlorobenzene ND H 0.0050 1 12/28/2021 05:21
1,4-Dichlorobenzene ND H 0.0050 1 12/28/2021 05:21
Dichlorodifluoromethane ND H 0.0050 1 12/28/2021 05:21
1,1-Dichloroethane ND H 0.0050 1 12/28/2021 05:21
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/28/2021 05:21 1,1-Dichloroethene ND H 0.0050 1 12/28/2021 05:21
cis-1,2-Dichloroethene ND H 0.0050 1 12/28/2021 05:21
trans-1,2-Dichloroethene ND H 0.0050 1 12/28/2021 05:21 1,2-Dichloropropane ND H 0.0050 1 12/28/2021 05:21
1,3-Dichloropropane ND H 0.0050 1 12/28/2021 05:21
2,2-Dichloropropane ND H 0.0050 1 12/28/2021 05:21
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-6-3.0 2112A92-010A Soil 11/10/2021 GC16 12272134.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/28/2021 05:21
cis-1,3-Dichloropropene ND H 0.0050 1 12/28/2021 05:21
trans-1,3-Dichloropropene ND H 0.0050 1 12/28/2021 05:21 Diisopropyl ether (DIPE) ND H 0.0050 1 12/28/2021 05:21 Ethylbenzene ND H 0.0050 1 12/28/2021 05:21
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/28/2021 05:21 Freon 113 ND H 0.0050 1 12/28/2021 05:21
Hexachlorobutadiene ND H 0.0050 1 12/28/2021 05:21
Hexachloroethane ND H 0.0050 1 12/28/2021 05:21
2-Hexanone ND H 0.0050 1 12/28/2021 05:21
Isopropylbenzene ND H 0.0050 1 12/28/2021 05:21
4-Isopropyl toluene ND H 0.0050 1 12/28/2021 05:21
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/28/2021 05:21 Methylene chloride ND H 0.020 1 12/28/2021 05:21
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/28/2021 05:21 Naphthalene ND H 0.0050 1 12/28/2021 05:21
n-Propyl benzene ND H 0.0050 1 12/28/2021 05:21
Styrene ND H 0.0050 1 12/28/2021 05:21
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/28/2021 05:21 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/28/2021 05:21 Tetrachloroethene ND H 0.0050 1 12/28/2021 05:21
Toluene ND H 0.0050 1 12/28/2021 05:21
1,2,3-Trichlorobenzene ND H 0.0050 1 12/28/2021 05:21
1,2,4-Trichlorobenzene ND H 0.0050 1 12/28/2021 05:21
1,1,1-Trichloroethane ND H 0.0050 1 12/28/2021 05:21
1,1,2-Trichloroethane ND H 0.0050 1 12/28/2021 05:21
Trichloroethene ND H 0.0050 1 12/28/2021 05:21
Trichlorofluoromethane ND H 0.0050 1 12/28/2021 05:21
1,2,3-Trichloropropane ND H 0.00025 1 12/28/2021 05:21
1,2,4-Trimethylbenzene ND H 0.0050 1 12/28/2021 05:21
1,3,5-Trimethylbenzene ND H 0.0050 1 12/28/2021 05:21
Vinyl Chloride ND H 0.00025 1 12/28/2021 05:21
m,p-Xylene ND H 0.0050 1 12/28/2021 05:21
o-Xylene ND H 0.0050 1 12/28/2021 05:21
Xylenes, Total ND H 0.0050 1 12/28/2021 05:21
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-6-4.5 2112A92-011A Soil 11/10/2021 GC16 12272135.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acetone ND H 0.20 1 12/28/2021 06:03
tert-Amyl methyl ether (TAME) ND H 0.0050 1 12/28/2021 06:03 Benzene ND H 0.0050 1 12/28/2021 06:03
Bromobenzene ND H 0.0050 1 12/28/2021 06:03
Bromochloromethane ND H 0.0050 1 12/28/2021 06:03
Bromodichloromethane ND H 0.0050 1 12/28/2021 06:03
Bromoform ND H 0.0050 1 12/28/2021 06:03
Bromomethane ND H 0.0050 1 12/28/2021 06:03
2-Butanone (MEK) ND H 0.10 1 12/28/2021 06:03
t-Butyl alcohol (TBA) ND H 0.050 1 12/28/2021 06:03
n-Butyl benzene ND H 0.0050 1 12/28/2021 06:03
sec-Butyl benzene ND H 0.0050 1 12/28/2021 06:03
tert-Butyl benzene ND H 0.0050 1 12/28/2021 06:03
Carbon Disulfide ND H 0.0050 1 12/28/2021 06:03
Carbon Tetrachloride ND H 0.0050 1 12/28/2021 06:03
Chlorobenzene ND H 0.0050 1 12/28/2021 06:03
Chloroethane ND H 0.0050 1 12/28/2021 06:03
Chloroform ND H 0.0050 1 12/28/2021 06:03
Chloromethane ND H 0.0050 1 12/28/2021 06:03
2-Chlorotoluene ND H 0.0050 1 12/28/2021 06:03
4-Chlorotoluene ND H 0.0050 1 12/28/2021 06:03
Dibromochloromethane ND H 0.0050 1 12/28/2021 06:03
1,2-Dibromo-3-chloropropane ND H 0.00050 1 12/28/2021 06:03 1,2-Dibromoethane (EDB) ND H 0.00025 1 12/28/2021 06:03 Dibromomethane ND H 0.0050 1 12/28/2021 06:03
1,2-Dichlorobenzene ND H 0.0050 1 12/28/2021 06:03
1,3-Dichlorobenzene ND H 0.0050 1 12/28/2021 06:03
1,4-Dichlorobenzene ND H 0.0050 1 12/28/2021 06:03
Dichlorodifluoromethane ND H 0.0050 1 12/28/2021 06:03
1,1-Dichloroethane ND H 0.0050 1 12/28/2021 06:03
1,2-Dichloroethane (1,2-DCA) ND H 0.00010 1 12/28/2021 06:03 1,1-Dichloroethene ND H 0.0050 1 12/28/2021 06:03
cis-1,2-Dichloroethene ND H 0.0050 1 12/28/2021 06:03
trans-1,2-Dichloroethene ND H 0.0050 1 12/28/2021 06:03 1,2-Dichloropropane ND H 0.0050 1 12/28/2021 06:03
1,3-Dichloropropane ND H 0.0050 1 12/28/2021 06:03
2,2-Dichloropropane ND H 0.0050 1 12/28/2021 06:03
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW5030B
Analytical Method: SW8260B
Unit: mg/kg
Volatile Organics
B-6-4.5 2112A92-011A Soil 11/10/2021 GC16 12272135.D 235908 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 1,1-Dichloropropene ND H 0.0050 1 12/28/2021 06:03
cis-1,3-Dichloropropene ND H 0.0050 1 12/28/2021 06:03
trans-1,3-Dichloropropene ND H 0.0050 1 12/28/2021 06:03 Diisopropyl ether (DIPE) ND H 0.0050 1 12/28/2021 06:03 Ethylbenzene ND H 0.0050 1 12/28/2021 06:03
Ethyl tert-butyl ether (ETBE) ND H 0.0050 1 12/28/2021 06:03 Freon 113 ND H 0.0050 1 12/28/2021 06:03
Hexachlorobutadiene ND H 0.0050 1 12/28/2021 06:03
Hexachloroethane ND H 0.0050 1 12/28/2021 06:03
2-Hexanone ND H 0.0050 1 12/28/2021 06:03
Isopropylbenzene ND H 0.0050 1 12/28/2021 06:03
4-Isopropyl toluene ND H 0.0050 1 12/28/2021 06:03
Methyl-t-butyl ether (MTBE) ND H 0.0050 1 12/28/2021 06:03 Methylene chloride ND H 0.020 1 12/28/2021 06:03
4-Methyl-2-pentanone (MIBK) ND H 0.0050 1 12/28/2021 06:03 Naphthalene ND H 0.0050 1 12/28/2021 06:03
n-Propyl benzene ND H 0.0050 1 12/28/2021 06:03
Styrene ND H 0.0050 1 12/28/2021 06:03
1,1,1,2-Tetrachloroethane ND H 0.0050 1 12/28/2021 06:03 1,1,2,2-Tetrachloroethane ND H 0.0050 1 12/28/2021 06:03 Tetrachloroethene ND H 0.0050 1 12/28/2021 06:03
Toluene ND H 0.0050 1 12/28/2021 06:03
1,2,3-Trichlorobenzene ND H 0.0050 1 12/28/2021 06:03
1,2,4-Trichlorobenzene ND H 0.0050 1 12/28/2021 06:03
1,1,1-Trichloroethane ND H 0.0050 1 12/28/2021 06:03
1,1,2-Trichloroethane ND H 0.0050 1 12/28/2021 06:03
Trichloroethene ND H 0.0050 1 12/28/2021 06:03
Trichlorofluoromethane ND H 0.0050 1 12/28/2021 06:03
1,2,3-Trichloropropane ND H 0.00025 1 12/28/2021 06:03
1,2,4-Trimethylbenzene ND H 0.0050 1 12/28/2021 06:03
1,3,5-Trimethylbenzene ND H 0.0050 1 12/28/2021 06:03
Vinyl Chloride ND H 0.00025 1 12/28/2021 06:03
m,p-Xylene ND H 0.0050 1 12/28/2021 06:03
o-Xylene ND H 0.0050 1 12/28/2021 06:03
Xylenes, Total ND H 0.0050 1 12/28/2021 06:03
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-4-1.5 2112A92-001A Soil 11/10/2021 GC47 12222120.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0065 5 12/22/2021 18:23
Acenaphthylene ND H 0.0065 5 12/22/2021 18:23
Acetochlor ND H 1.2 5 12/22/2021 18:23
Anthracene ND H 0.0065 5 12/22/2021 18:23
Benzidine ND H 6.2 5 12/22/2021 18:23
Benzo (a) anthracene ND H 0.065 5 12/22/2021 18:23
Benzo (a) pyrene 0.018 H 0.012 5 12/22/2021 18:23
Benzo (b) fluoranthene ND H 0.032 5 12/22/2021 18:23
Benzo (g,h,i) perylene 0.021 H 0.012 5 12/22/2021 18:23 Benzo (k) fluoranthene ND H 0.0065 5 12/22/2021 18:23
Benzyl Alcohol ND H 6.2 5 12/22/2021 18:23
1,1-Biphenyl ND H 0.065 5 12/22/2021 18:23
Bis (2-chloroethoxy) Methane ND H 1.2 5 12/22/2021 18:23 Bis (2-chloroethyl) Ether ND H 0.0065 5 12/22/2021 18:23 Bis (2-chloroisopropyl) Ether ND H 0.0065 5 12/22/2021 18:23 Bis (2-ethylhexyl) Adipate ND H 1.2 5 12/22/2021 18:23
Bis (2-ethylhexyl) Phthalate ND H 0.12 5 12/22/2021 18:23 4-Bromophenyl Phenyl Ether ND H 1.2 5 12/22/2021 18:23
Butylbenzyl Phthalate ND H 0.12 5 12/22/2021 18:23
4-Chloroaniline ND H 0.012 5 12/22/2021 18:23
4-Chloro-3-methylphenol ND H 1.2 5 12/22/2021 18:23
2-Chloronaphthalene ND H 1.2 5 12/22/2021 18:23
2-Chlorophenol ND H 0.065 5 12/22/2021 18:23
4-Chlorophenyl Phenyl Ether ND H 1.2 5 12/22/2021 18:23 Chrysene 0.019 H 0.012 5 12/22/2021 18:23
Dibenzo (a,h) anthracene 0.013 H 0.012 5 12/22/2021 18:23 Dibenzofuran ND H 0.0065 5 12/22/2021 18:23
Di-n-butyl Phthalate ND H 0.065 5 12/22/2021 18:23
1,2-Dichlorobenzene ND H 1.2 5 12/22/2021 18:23
1,3-Dichlorobenzene ND H 1.2 5 12/22/2021 18:23
1,4-Dichlorobenzene ND H 1.2 5 12/22/2021 18:23
3,3-Dichlorobenzidine ND H 0.012 5 12/22/2021 18:23
2,4-Dichlorophenol ND H 0.0065 5 12/22/2021 18:23
Diethyl Phthalate ND H 0.065 5 12/22/2021 18:23
2,4-Dimethylphenol ND H 1.2 5 12/22/2021 18:23
Dimethyl Phthalate ND H 0.012 5 12/22/2021 18:23
4,6-Dinitro-2-methylphenol ND H 6.2 5 12/22/2021 18:23
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-4-1.5 2112A92-001A Soil 11/10/2021 GC47 12222120.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 1.2 5 12/22/2021 18:23
2,4-Dinitrotoluene ND H 0.065 5 12/22/2021 18:23
2,6-Dinitrotoluene ND H 0.065 5 12/22/2021 18:23
Di-n-octyl Phthalate ND H 2.5 5 12/22/2021 18:23
1,2-Diphenylhydrazine ND H 1.2 5 12/22/2021 18:23
Fluoranthene 0.022 H 0.0065 5 12/22/2021 18:23
Fluorene ND H 0.012 5 12/22/2021 18:23
Hexachlorobenzene ND H 0.0065 5 12/22/2021 18:23
Hexachlorobutadiene ND H 0.012 5 12/22/2021 18:23
Hexachlorocyclopentadiene ND H 10 5 12/22/2021 18:23
Hexachloroethane ND H 0.065 5 12/22/2021 18:23
Indeno (1,2,3-cd) pyrene ND H 0.065 5 12/22/2021 18:23
Isophorone ND H 1.2 5 12/22/2021 18:23
1-Methylnaphthalene ND H 0.0065 5 12/22/2021 18:23
2-Methylnaphthalene 0.013 H 0.012 5 12/22/2021 18:23
2-Methylphenol (o-Cresol) ND H 1.2 5 12/22/2021 18:23
3 & 4-Methylphenol (m,p-Cresol) ND H 1.2 5 12/22/2021 18:23 Naphthalene ND H 0.0065 5 12/22/2021 18:23
2-Nitroaniline ND H 6.2 5 12/22/2021 18:23
3-Nitroaniline ND H 6.2 5 12/22/2021 18:23
4-Nitroaniline ND H 6.2 5 12/22/2021 18:23
Nitrobenzene ND H 1.2 5 12/22/2021 18:23
2-Nitrophenol ND H 6.2 5 12/22/2021 18:23
4-Nitrophenol ND H 6.2 5 12/22/2021 18:23
N-Nitrosodimethylamine ND H 6.2 5 12/22/2021 18:23
N-Nitrosodiphenylamine ND H 1.2 5 12/22/2021 18:23
N-Nitrosodi-n-propylamine ND H 1.2 5 12/22/2021 18:23
Pentachlorophenol ND H 0.31 5 12/22/2021 18:23
Phenanthrene ND H 0.025 5 12/22/2021 18:23
Phenol ND H 0.25 5 12/22/2021 18:23
Pyrene 0.025 H 0.012 5 12/22/2021 18:23
Pyridine ND H 1.2 5 12/22/2021 18:23
1,2,4-Trichlorobenzene ND H 1.2 5 12/22/2021 18:23
2,4,5-Trichlorophenol ND H 0.012 5 12/22/2021 18:23
2,4,6-Trichlorophenol ND H 0.065 5 12/22/2021 18:23
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-4-3.0 2112A92-002A Soil 11/10/2021 GC47 12222121.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0013 1 12/22/2021 18:49
Acenaphthylene ND H 0.0013 1 12/22/2021 18:49
Acetochlor ND H 0.25 1 12/22/2021 18:49
Anthracene ND H 0.0013 1 12/22/2021 18:49
Benzidine ND H 1.2 1 12/22/2021 18:49
Benzo (a) anthracene ND H 0.013 1 12/22/2021 18:49
Benzo (a) pyrene ND H 0.0025 1 12/22/2021 18:49
Benzo (b) fluoranthene ND H 0.0063 1 12/22/2021 18:49
Benzo (g,h,i) perylene ND H 0.0025 1 12/22/2021 18:49
Benzo (k) fluoranthene ND H 0.0013 1 12/22/2021 18:49
Benzyl Alcohol ND H 1.2 1 12/22/2021 18:49
1,1-Biphenyl ND H 0.013 1 12/22/2021 18:49
Bis (2-chloroethoxy) Methane ND H 0.25 1 12/22/2021 18:49 Bis (2-chloroethyl) Ether ND H 0.0013 1 12/22/2021 18:49 Bis (2-chloroisopropyl) Ether ND H 0.0013 1 12/22/2021 18:49 Bis (2-ethylhexyl) Adipate ND H 0.25 1 12/22/2021 18:49 Bis (2-ethylhexyl) Phthalate ND H 0.025 1 12/22/2021 18:49 4-Bromophenyl Phenyl Ether ND H 0.25 1 12/22/2021 18:49 Butylbenzyl Phthalate ND H 0.025 1 12/22/2021 18:49
4-Chloroaniline ND H 0.0025 1 12/22/2021 18:49
4-Chloro-3-methylphenol ND H 0.25 1 12/22/2021 18:49
2-Chloronaphthalene ND H 0.25 1 12/22/2021 18:49
2-Chlorophenol ND H 0.013 1 12/22/2021 18:49
4-Chlorophenyl Phenyl Ether ND H 0.25 1 12/22/2021 18:49 Chrysene ND H 0.0025 1 12/22/2021 18:49
Dibenzo (a,h) anthracene ND H 0.0025 1 12/22/2021 18:49 Dibenzofuran ND H 0.0013 1 12/22/2021 18:49
Di-n-butyl Phthalate ND H 0.013 1 12/22/2021 18:49
1,2-Dichlorobenzene ND H 0.25 1 12/22/2021 18:49
1,3-Dichlorobenzene ND H 0.25 1 12/22/2021 18:49
1,4-Dichlorobenzene ND H 0.25 1 12/22/2021 18:49
3,3-Dichlorobenzidine ND H 0.0025 1 12/22/2021 18:49
2,4-Dichlorophenol ND H 0.0013 1 12/22/2021 18:49
Diethyl Phthalate ND H 0.013 1 12/22/2021 18:49
2,4-Dimethylphenol ND H 0.25 1 12/22/2021 18:49
Dimethyl Phthalate ND H 0.0025 1 12/22/2021 18:49
4,6-Dinitro-2-methylphenol ND H 1.2 1 12/22/2021 18:49
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-4-3.0 2112A92-002A Soil 11/10/2021 GC47 12222121.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.25 1 12/22/2021 18:49
2,4-Dinitrotoluene ND H 0.013 1 12/22/2021 18:49
2,6-Dinitrotoluene ND H 0.013 1 12/22/2021 18:49
Di-n-octyl Phthalate ND H 0.50 1 12/22/2021 18:49
1,2-Diphenylhydrazine ND H 0.25 1 12/22/2021 18:49
Fluoranthene 0.0015 H 0.0013 1 12/22/2021 18:49
Fluorene ND H 0.0025 1 12/22/2021 18:49
Hexachlorobenzene ND H 0.0013 1 12/22/2021 18:49
Hexachlorobutadiene ND H 0.0025 1 12/22/2021 18:49
Hexachlorocyclopentadiene ND H 2.0 1 12/22/2021 18:49
Hexachloroethane ND H 0.013 1 12/22/2021 18:49
Indeno (1,2,3-cd) pyrene ND H 0.013 1 12/22/2021 18:49
Isophorone ND H 0.25 1 12/22/2021 18:49
1-Methylnaphthalene ND H 0.0013 1 12/22/2021 18:49
2-Methylnaphthalene ND H 0.0025 1 12/22/2021 18:49
2-Methylphenol (o-Cresol) ND H 0.25 1 12/22/2021 18:49
3 & 4-Methylphenol (m,p-Cresol) ND H 0.25 1 12/22/2021 18:49 Naphthalene ND H 0.0013 1 12/22/2021 18:49
2-Nitroaniline ND H 1.2 1 12/22/2021 18:49
3-Nitroaniline ND H 1.2 1 12/22/2021 18:49
4-Nitroaniline ND H 1.2 1 12/22/2021 18:49
Nitrobenzene ND H 0.25 1 12/22/2021 18:49
2-Nitrophenol ND H 1.2 1 12/22/2021 18:49
4-Nitrophenol ND H 1.2 1 12/22/2021 18:49
N-Nitrosodimethylamine ND H 1.2 1 12/22/2021 18:49
N-Nitrosodiphenylamine ND H 0.25 1 12/22/2021 18:49
N-Nitrosodi-n-propylamine ND H 0.25 1 12/22/2021 18:49
Pentachlorophenol ND H 0.062 1 12/22/2021 18:49
Phenanthrene ND H 0.0050 1 12/22/2021 18:49
Phenol ND H 0.050 1 12/22/2021 18:49
Pyrene ND H 0.0025 1 12/22/2021 18:49
Pyridine ND H 0.25 1 12/22/2021 18:49
1,2,4-Trichlorobenzene ND H 0.25 1 12/22/2021 18:49
2,4,5-Trichlorophenol ND H 0.0025 1 12/22/2021 18:49
2,4,6-Trichlorophenol ND H 0.013 1 12/22/2021 18:49
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-4-4.5 2112A92-003A Soil 11/10/2021 GC21 12232120.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0013 1 12/23/2021 18:31
Acenaphthylene ND H 0.0013 1 12/23/2021 18:31
Acetochlor ND H 0.25 1 12/23/2021 18:31
Anthracene ND H 0.0013 1 12/23/2021 18:31
Benzidine ND H 1.2 1 12/23/2021 18:31
Benzo (a) anthracene ND H 0.013 1 12/23/2021 18:31
Benzo (a) pyrene ND H 0.0025 1 12/23/2021 18:31
Benzo (b) fluoranthene ND H 0.0063 1 12/23/2021 18:31
Benzo (g,h,i) perylene ND H 0.0025 1 12/23/2021 18:31
Benzo (k) fluoranthene ND H 0.0013 1 12/23/2021 18:31
Benzyl Alcohol ND H 1.2 1 12/23/2021 18:31
1,1-Biphenyl ND H 0.013 1 12/23/2021 18:31
Bis (2-chloroethoxy) Methane ND H 0.25 1 12/23/2021 18:31 Bis (2-chloroethyl) Ether ND H 0.0013 1 12/23/2021 18:31 Bis (2-chloroisopropyl) Ether ND H 0.0013 1 12/23/2021 18:31 Bis (2-ethylhexyl) Adipate ND H 0.25 1 12/23/2021 18:31 Bis (2-ethylhexyl) Phthalate ND H 0.025 1 12/23/2021 18:31 4-Bromophenyl Phenyl Ether ND H 0.25 1 12/23/2021 18:31 Butylbenzyl Phthalate ND H 0.025 1 12/23/2021 18:31
4-Chloroaniline ND H 0.0025 1 12/23/2021 18:31
4-Chloro-3-methylphenol ND H 0.25 1 12/23/2021 18:31
2-Chloronaphthalene ND H 0.25 1 12/23/2021 18:31
2-Chlorophenol ND H 0.013 1 12/23/2021 18:31
4-Chlorophenyl Phenyl Ether ND H 0.25 1 12/23/2021 18:31 Chrysene ND H 0.0025 1 12/23/2021 18:31
Dibenzo (a,h) anthracene ND H 0.0025 1 12/23/2021 18:31 Dibenzofuran ND H 0.0013 1 12/23/2021 18:31
Di-n-butyl Phthalate ND H 0.013 1 12/23/2021 18:31
1,2-Dichlorobenzene ND H 0.25 1 12/23/2021 18:31
1,3-Dichlorobenzene ND H 0.25 1 12/23/2021 18:31
1,4-Dichlorobenzene ND H 0.25 1 12/23/2021 18:31
3,3-Dichlorobenzidine ND H 0.0025 1 12/23/2021 18:31
2,4-Dichlorophenol ND H 0.0013 1 12/23/2021 18:31
Diethyl Phthalate ND H 0.013 1 12/23/2021 18:31
2,4-Dimethylphenol ND H 0.25 1 12/23/2021 18:31
Dimethyl Phthalate ND H 0.0025 1 12/23/2021 18:31
4,6-Dinitro-2-methylphenol ND H 1.2 1 12/23/2021 18:31
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-4-4.5 2112A92-003A Soil 11/10/2021 GC21 12232120.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.25 1 12/23/2021 18:31
2,4-Dinitrotoluene ND H 0.013 1 12/23/2021 18:31
2,6-Dinitrotoluene ND H 0.013 1 12/23/2021 18:31
Di-n-octyl Phthalate ND H 0.50 1 12/23/2021 18:31
1,2-Diphenylhydrazine ND H 0.25 1 12/23/2021 18:31
Fluoranthene ND H 0.0013 1 12/23/2021 18:31
Fluorene ND H 0.0025 1 12/23/2021 18:31
Hexachlorobenzene ND H 0.0013 1 12/23/2021 18:31
Hexachlorobutadiene ND H 0.0025 1 12/23/2021 18:31
Hexachlorocyclopentadiene ND H 2.0 1 12/23/2021 18:31
Hexachloroethane ND H 0.013 1 12/23/2021 18:31
Indeno (1,2,3-cd) pyrene ND H 0.013 1 12/23/2021 18:31
Isophorone ND H 0.25 1 12/23/2021 18:31
1-Methylnaphthalene ND H 0.0013 1 12/23/2021 18:31
2-Methylnaphthalene ND H 0.0025 1 12/23/2021 18:31
2-Methylphenol (o-Cresol) ND H 0.25 1 12/23/2021 18:31
3 & 4-Methylphenol (m,p-Cresol) ND H 0.25 1 12/23/2021 18:31 Naphthalene ND H 0.0013 1 12/23/2021 18:31
2-Nitroaniline ND H 1.2 1 12/23/2021 18:31
3-Nitroaniline ND H 1.2 1 12/23/2021 18:31
4-Nitroaniline ND H 1.2 1 12/23/2021 18:31
Nitrobenzene ND H 0.25 1 12/23/2021 18:31
2-Nitrophenol ND H 1.2 1 12/23/2021 18:31
4-Nitrophenol ND H 1.2 1 12/23/2021 18:31
N-Nitrosodimethylamine ND H 1.2 1 12/23/2021 18:31
N-Nitrosodiphenylamine ND H 0.25 1 12/23/2021 18:31
N-Nitrosodi-n-propylamine ND H 0.25 1 12/23/2021 18:31
Pentachlorophenol ND H 0.062 1 12/23/2021 18:31
Phenanthrene ND H 0.0050 1 12/23/2021 18:31
Phenol ND H 0.050 1 12/23/2021 18:31
Pyrene ND H 0.0025 1 12/23/2021 18:31
Pyridine ND H 0.25 1 12/23/2021 18:31
1,2,4-Trichlorobenzene ND H 0.25 1 12/23/2021 18:31
2,4,5-Trichlorophenol ND H 0.0025 1 12/23/2021 18:31
2,4,6-Trichlorophenol ND H 0.013 1 12/23/2021 18:31
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-5-1.5 2112A92-005A Soil 11/10/2021 GC47 12222122.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0026 2 12/22/2021 19:16
Acenaphthylene ND H 0.0026 2 12/22/2021 19:16
Acetochlor ND H 0.50 2 12/22/2021 19:16
Anthracene ND H 0.0026 2 12/22/2021 19:16
Benzidine ND H 2.5 2 12/22/2021 19:16
Benzo (a) anthracene ND H 0.026 2 12/22/2021 19:16
Benzo (a) pyrene ND H 0.0050 2 12/22/2021 19:16
Benzo (b) fluoranthene ND H 0.013 2 12/22/2021 19:16
Benzo (g,h,i) perylene 0.0058 H 0.0050 2 12/22/2021 19:16 Benzo (k) fluoranthene ND H 0.0026 2 12/22/2021 19:16
Benzyl Alcohol ND H 2.5 2 12/22/2021 19:16
1,1-Biphenyl ND H 0.026 2 12/22/2021 19:16
Bis (2-chloroethoxy) Methane ND H 0.50 2 12/22/2021 19:16 Bis (2-chloroethyl) Ether ND H 0.0026 2 12/22/2021 19:16 Bis (2-chloroisopropyl) Ether ND H 0.0026 2 12/22/2021 19:16 Bis (2-ethylhexyl) Adipate ND H 0.50 2 12/22/2021 19:16 Bis (2-ethylhexyl) Phthalate ND H 0.050 2 12/22/2021 19:16 4-Bromophenyl Phenyl Ether ND H 0.50 2 12/22/2021 19:16 Butylbenzyl Phthalate ND H 0.050 2 12/22/2021 19:16
4-Chloroaniline ND H 0.0050 2 12/22/2021 19:16
4-Chloro-3-methylphenol ND H 0.50 2 12/22/2021 19:16
2-Chloronaphthalene ND H 0.50 2 12/22/2021 19:16
2-Chlorophenol ND H 0.026 2 12/22/2021 19:16
4-Chlorophenyl Phenyl Ether ND H 0.50 2 12/22/2021 19:16 Chrysene ND H 0.0050 2 12/22/2021 19:16
Dibenzo (a,h) anthracene ND H 0.0050 2 12/22/2021 19:16 Dibenzofuran ND H 0.0026 2 12/22/2021 19:16
Di-n-butyl Phthalate ND H 0.026 2 12/22/2021 19:16
1,2-Dichlorobenzene ND H 0.50 2 12/22/2021 19:16
1,3-Dichlorobenzene ND H 0.50 2 12/22/2021 19:16
1,4-Dichlorobenzene ND H 0.50 2 12/22/2021 19:16
3,3-Dichlorobenzidine ND H 0.0050 2 12/22/2021 19:16
2,4-Dichlorophenol ND H 0.0026 2 12/22/2021 19:16
Diethyl Phthalate ND H 0.026 2 12/22/2021 19:16
2,4-Dimethylphenol ND H 0.50 2 12/22/2021 19:16
Dimethyl Phthalate ND H 0.0050 2 12/22/2021 19:16
4,6-Dinitro-2-methylphenol ND H 2.5 2 12/22/2021 19:16
(Cont.)

Page 43 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-5-1.5 2112A92-005A Soil 11/10/2021 GC47 12222122.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.50 2 12/22/2021 19:16
2,4-Dinitrotoluene ND H 0.026 2 12/22/2021 19:16
2,6-Dinitrotoluene ND H 0.026 2 12/22/2021 19:16
Di-n-octyl Phthalate ND H 1.0 2 12/22/2021 19:16
1,2-Diphenylhydrazine ND H 0.50 2 12/22/2021 19:16
Fluoranthene ND H 0.0026 2 12/22/2021 19:16
Fluorene ND H 0.0050 2 12/22/2021 19:16
Hexachlorobenzene ND H 0.0026 2 12/22/2021 19:16
Hexachlorobutadiene ND H 0.0050 2 12/22/2021 19:16
Hexachlorocyclopentadiene ND H 4.0 2 12/22/2021 19:16
Hexachloroethane ND H 0.026 2 12/22/2021 19:16
Indeno (1,2,3-cd) pyrene ND H 0.026 2 12/22/2021 19:16
Isophorone ND H 0.50 2 12/22/2021 19:16
1-Methylnaphthalene ND H 0.0026 2 12/22/2021 19:16
2-Methylnaphthalene ND H 0.0050 2 12/22/2021 19:16
2-Methylphenol (o-Cresol) ND H 0.50 2 12/22/2021 19:16
3 & 4-Methylphenol (m,p-Cresol) ND H 0.50 2 12/22/2021 19:16 Naphthalene ND H 0.0026 2 12/22/2021 19:16
2-Nitroaniline ND H 2.5 2 12/22/2021 19:16
3-Nitroaniline ND H 2.5 2 12/22/2021 19:16
4-Nitroaniline ND H 2.5 2 12/22/2021 19:16
Nitrobenzene ND H 0.50 2 12/22/2021 19:16
2-Nitrophenol ND H 2.5 2 12/22/2021 19:16
4-Nitrophenol ND H 2.5 2 12/22/2021 19:16
N-Nitrosodimethylamine ND H 2.5 2 12/22/2021 19:16
N-Nitrosodiphenylamine ND H 0.50 2 12/22/2021 19:16
N-Nitrosodi-n-propylamine ND H 0.50 2 12/22/2021 19:16
Pentachlorophenol ND H 0.12 2 12/22/2021 19:16
Phenanthrene ND H 0.010 2 12/22/2021 19:16
Phenol ND H 0.10 2 12/22/2021 19:16
Pyrene ND H 0.0050 2 12/22/2021 19:16
Pyridine ND H 0.50 2 12/22/2021 19:16
1,2,4-Trichlorobenzene ND H 0.50 2 12/22/2021 19:16
2,4,5-Trichlorophenol ND H 0.0050 2 12/22/2021 19:16
2,4,6-Trichlorophenol ND H 0.026 2 12/22/2021 19:16
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-5-3.0 2112A92-006A Soil 11/10/2021 GC47 12222123.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0013 1 12/22/2021 19:42
Acenaphthylene ND H 0.0013 1 12/22/2021 19:42
Acetochlor ND H 0.25 1 12/22/2021 19:42
Anthracene ND H 0.0013 1 12/22/2021 19:42
Benzidine ND H 1.2 1 12/22/2021 19:42
Benzo (a) anthracene ND H 0.013 1 12/22/2021 19:42
Benzo (a) pyrene ND H 0.0025 1 12/22/2021 19:42
Benzo (b) fluoranthene ND H 0.0063 1 12/22/2021 19:42
Benzo (g,h,i) perylene ND H 0.0025 1 12/22/2021 19:42
Benzo (k) fluoranthene ND H 0.0013 1 12/22/2021 19:42
Benzyl Alcohol ND H 1.2 1 12/22/2021 19:42
1,1-Biphenyl ND H 0.013 1 12/22/2021 19:42
Bis (2-chloroethoxy) Methane ND H 0.25 1 12/22/2021 19:42 Bis (2-chloroethyl) Ether ND H 0.0013 1 12/22/2021 19:42 Bis (2-chloroisopropyl) Ether ND H 0.0013 1 12/22/2021 19:42 Bis (2-ethylhexyl) Adipate ND H 0.25 1 12/22/2021 19:42 Bis (2-ethylhexyl) Phthalate ND H 0.025 1 12/22/2021 19:42 4-Bromophenyl Phenyl Ether ND H 0.25 1 12/22/2021 19:42 Butylbenzyl Phthalate ND H 0.025 1 12/22/2021 19:42
4-Chloroaniline ND H 0.0025 1 12/22/2021 19:42
4-Chloro-3-methylphenol ND H 0.25 1 12/22/2021 19:42
2-Chloronaphthalene ND H 0.25 1 12/22/2021 19:42
2-Chlorophenol ND H 0.013 1 12/22/2021 19:42
4-Chlorophenyl Phenyl Ether ND H 0.25 1 12/22/2021 19:42 Chrysene ND H 0.0025 1 12/22/2021 19:42
Dibenzo (a,h) anthracene ND H 0.0025 1 12/22/2021 19:42 Dibenzofuran ND H 0.0013 1 12/22/2021 19:42
Di-n-butyl Phthalate ND H 0.013 1 12/22/2021 19:42
1,2-Dichlorobenzene ND H 0.25 1 12/22/2021 19:42
1,3-Dichlorobenzene ND H 0.25 1 12/22/2021 19:42
1,4-Dichlorobenzene ND H 0.25 1 12/22/2021 19:42
3,3-Dichlorobenzidine ND H 0.0025 1 12/22/2021 19:42
2,4-Dichlorophenol ND H 0.0013 1 12/22/2021 19:42
Diethyl Phthalate ND H 0.013 1 12/22/2021 19:42
2,4-Dimethylphenol ND H 0.25 1 12/22/2021 19:42
Dimethyl Phthalate ND H 0.0025 1 12/22/2021 19:42
4,6-Dinitro-2-methylphenol ND H 1.2 1 12/22/2021 19:42
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-5-3.0 2112A92-006A Soil 11/10/2021 GC47 12222123.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.25 1 12/22/2021 19:42
2,4-Dinitrotoluene ND H 0.013 1 12/22/2021 19:42
2,6-Dinitrotoluene ND H 0.013 1 12/22/2021 19:42
Di-n-octyl Phthalate ND H 0.50 1 12/22/2021 19:42
1,2-Diphenylhydrazine ND H 0.25 1 12/22/2021 19:42
Fluoranthene ND H 0.0013 1 12/22/2021 19:42
Fluorene ND H 0.0025 1 12/22/2021 19:42
Hexachlorobenzene ND H 0.0013 1 12/22/2021 19:42
Hexachlorobutadiene ND H 0.0025 1 12/22/2021 19:42
Hexachlorocyclopentadiene ND H 2.0 1 12/22/2021 19:42
Hexachloroethane ND H 0.013 1 12/22/2021 19:42
Indeno (1,2,3-cd) pyrene ND H 0.013 1 12/22/2021 19:42
Isophorone ND H 0.25 1 12/22/2021 19:42
1-Methylnaphthalene ND H 0.0013 1 12/22/2021 19:42
2-Methylnaphthalene ND H 0.0025 1 12/22/2021 19:42
2-Methylphenol (o-Cresol) ND H 0.25 1 12/22/2021 19:42
3 & 4-Methylphenol (m,p-Cresol) ND H 0.25 1 12/22/2021 19:42 Naphthalene ND H 0.0013 1 12/22/2021 19:42
2-Nitroaniline ND H 1.2 1 12/22/2021 19:42
3-Nitroaniline ND H 1.2 1 12/22/2021 19:42
4-Nitroaniline ND H 1.2 1 12/22/2021 19:42
Nitrobenzene ND H 0.25 1 12/22/2021 19:42
2-Nitrophenol ND H 1.2 1 12/22/2021 19:42
4-Nitrophenol ND H 1.2 1 12/22/2021 19:42
N-Nitrosodimethylamine ND H 1.2 1 12/22/2021 19:42
N-Nitrosodiphenylamine ND H 0.25 1 12/22/2021 19:42
N-Nitrosodi-n-propylamine ND H 0.25 1 12/22/2021 19:42
Pentachlorophenol ND H 0.062 1 12/22/2021 19:42
Phenanthrene ND H 0.0050 1 12/22/2021 19:42
Phenol ND H 0.050 1 12/22/2021 19:42
Pyrene ND H 0.0025 1 12/22/2021 19:42
Pyridine ND H 0.25 1 12/22/2021 19:42
1,2,4-Trichlorobenzene ND H 0.25 1 12/22/2021 19:42
2,4,5-Trichlorophenol ND H 0.0025 1 12/22/2021 19:42
2,4,6-Trichlorophenol ND H 0.013 1 12/22/2021 19:42
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-5-6.0 2112A92-008A Soil 11/10/2021 GC21 12232122.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0013 1 12/23/2021 19:26
Acenaphthylene ND H 0.0013 1 12/23/2021 19:26
Acetochlor ND H 0.25 1 12/23/2021 19:26
Anthracene ND H 0.0013 1 12/23/2021 19:26
Benzidine ND H 1.2 1 12/23/2021 19:26
Benzo (a) anthracene ND H 0.013 1 12/23/2021 19:26
Benzo (a) pyrene ND H 0.0025 1 12/23/2021 19:26
Benzo (b) fluoranthene ND H 0.0063 1 12/23/2021 19:26
Benzo (g,h,i) perylene ND H 0.0025 1 12/23/2021 19:26
Benzo (k) fluoranthene ND H 0.0013 1 12/23/2021 19:26
Benzyl Alcohol ND H 1.2 1 12/23/2021 19:26
1,1-Biphenyl ND H 0.013 1 12/23/2021 19:26
Bis (2-chloroethoxy) Methane ND H 0.25 1 12/23/2021 19:26 Bis (2-chloroethyl) Ether ND H 0.0013 1 12/23/2021 19:26 Bis (2-chloroisopropyl) Ether ND H 0.0013 1 12/23/2021 19:26 Bis (2-ethylhexyl) Adipate ND H 0.25 1 12/23/2021 19:26 Bis (2-ethylhexyl) Phthalate ND H 0.025 1 12/23/2021 19:26 4-Bromophenyl Phenyl Ether ND H 0.25 1 12/23/2021 19:26 Butylbenzyl Phthalate ND H 0.025 1 12/23/2021 19:26
4-Chloroaniline ND H 0.0025 1 12/23/2021 19:26
4-Chloro-3-methylphenol ND H 0.25 1 12/23/2021 19:26
2-Chloronaphthalene ND H 0.25 1 12/23/2021 19:26
2-Chlorophenol ND H 0.013 1 12/23/2021 19:26
4-Chlorophenyl Phenyl Ether ND H 0.25 1 12/23/2021 19:26 Chrysene ND H 0.0025 1 12/23/2021 19:26
Dibenzo (a,h) anthracene ND H 0.0025 1 12/23/2021 19:26 Dibenzofuran ND H 0.0013 1 12/23/2021 19:26
Di-n-butyl Phthalate ND H 0.013 1 12/23/2021 19:26
1,2-Dichlorobenzene ND H 0.25 1 12/23/2021 19:26
1,3-Dichlorobenzene ND H 0.25 1 12/23/2021 19:26
1,4-Dichlorobenzene ND H 0.25 1 12/23/2021 19:26
3,3-Dichlorobenzidine ND H 0.0025 1 12/23/2021 19:26
2,4-Dichlorophenol ND H 0.0013 1 12/23/2021 19:26
Diethyl Phthalate ND H 0.013 1 12/23/2021 19:26
2,4-Dimethylphenol ND H 0.25 1 12/23/2021 19:26
Dimethyl Phthalate ND H 0.0025 1 12/23/2021 19:26
4,6-Dinitro-2-methylphenol ND H 1.2 1 12/23/2021 19:26
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-5-6.0 2112A92-008A Soil 11/10/2021 GC21 12232122.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.25 1 12/23/2021 19:26
2,4-Dinitrotoluene ND H 0.013 1 12/23/2021 19:26
2,6-Dinitrotoluene ND H 0.013 1 12/23/2021 19:26
Di-n-octyl Phthalate ND H 0.50 1 12/23/2021 19:26
1,2-Diphenylhydrazine ND H 0.25 1 12/23/2021 19:26
Fluoranthene ND H 0.0013 1 12/23/2021 19:26
Fluorene ND H 0.0025 1 12/23/2021 19:26
Hexachlorobenzene ND H 0.0013 1 12/23/2021 19:26
Hexachlorobutadiene ND H 0.0025 1 12/23/2021 19:26
Hexachlorocyclopentadiene ND H 2.0 1 12/23/2021 19:26
Hexachloroethane ND H 0.013 1 12/23/2021 19:26
Indeno (1,2,3-cd) pyrene ND H 0.013 1 12/23/2021 19:26
Isophorone ND H 0.25 1 12/23/2021 19:26
1-Methylnaphthalene ND H 0.0013 1 12/23/2021 19:26
2-Methylnaphthalene ND H 0.0025 1 12/23/2021 19:26
2-Methylphenol (o-Cresol) ND H 0.25 1 12/23/2021 19:26
3 & 4-Methylphenol (m,p-Cresol) ND H 0.25 1 12/23/2021 19:26 Naphthalene ND H 0.0013 1 12/23/2021 19:26
2-Nitroaniline ND H 1.2 1 12/23/2021 19:26
3-Nitroaniline ND H 1.2 1 12/23/2021 19:26
4-Nitroaniline ND H 1.2 1 12/23/2021 19:26
Nitrobenzene ND H 0.25 1 12/23/2021 19:26
2-Nitrophenol ND H 1.2 1 12/23/2021 19:26
4-Nitrophenol ND H 1.2 1 12/23/2021 19:26
N-Nitrosodimethylamine ND H 1.2 1 12/23/2021 19:26
N-Nitrosodiphenylamine ND H 0.25 1 12/23/2021 19:26
N-Nitrosodi-n-propylamine ND H 0.25 1 12/23/2021 19:26
Pentachlorophenol ND H 0.062 1 12/23/2021 19:26
Phenanthrene ND H 0.0050 1 12/23/2021 19:26
Phenol ND H 0.050 1 12/23/2021 19:26
Pyrene ND H 0.0025 1 12/23/2021 19:26
Pyridine ND H 0.25 1 12/23/2021 19:26
1,2,4-Trichlorobenzene ND H 0.25 1 12/23/2021 19:26
2,4,5-Trichlorophenol ND H 0.0025 1 12/23/2021 19:26
2,4,6-Trichlorophenol ND H 0.013 1 12/23/2021 19:26
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-6-1.5 2112A92-009A Soil 11/10/2021 GC47 12222124.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0026 2 12/22/2021 20:09
Acenaphthylene ND H 0.0026 2 12/22/2021 20:09
Acetochlor ND H 0.50 2 12/22/2021 20:09
Anthracene ND H 0.0026 2 12/22/2021 20:09
Benzidine ND H 2.5 2 12/22/2021 20:09
Benzo (a) anthracene ND H 0.026 2 12/22/2021 20:09
Benzo (a) pyrene ND H 0.0050 2 12/22/2021 20:09
Benzo (b) fluoranthene ND H 0.013 2 12/22/2021 20:09
Benzo (g,h,i) perylene ND H 0.0050 2 12/22/2021 20:09
Benzo (k) fluoranthene ND H 0.0026 2 12/22/2021 20:09
Benzyl Alcohol ND H 2.5 2 12/22/2021 20:09
1,1-Biphenyl ND H 0.026 2 12/22/2021 20:09
Bis (2-chloroethoxy) Methane ND H 0.50 2 12/22/2021 20:09 Bis (2-chloroethyl) Ether ND H 0.0026 2 12/22/2021 20:09 Bis (2-chloroisopropyl) Ether ND H 0.0026 2 12/22/2021 20:09 Bis (2-ethylhexyl) Adipate ND H 0.50 2 12/22/2021 20:09 Bis (2-ethylhexyl) Phthalate ND H 0.050 2 12/22/2021 20:09 4-Bromophenyl Phenyl Ether ND H 0.50 2 12/22/2021 20:09 Butylbenzyl Phthalate ND H 0.050 2 12/22/2021 20:09
4-Chloroaniline ND H 0.0050 2 12/22/2021 20:09
4-Chloro-3-methylphenol ND H 0.50 2 12/22/2021 20:09
2-Chloronaphthalene ND H 0.50 2 12/22/2021 20:09
2-Chlorophenol ND H 0.026 2 12/22/2021 20:09
4-Chlorophenyl Phenyl Ether ND H 0.50 2 12/22/2021 20:09 Chrysene ND H 0.0050 2 12/22/2021 20:09
Dibenzo (a,h) anthracene ND H 0.0050 2 12/22/2021 20:09 Dibenzofuran ND H 0.0026 2 12/22/2021 20:09
Di-n-butyl Phthalate ND H 0.026 2 12/22/2021 20:09
1,2-Dichlorobenzene ND H 0.50 2 12/22/2021 20:09
1,3-Dichlorobenzene ND H 0.50 2 12/22/2021 20:09
1,4-Dichlorobenzene ND H 0.50 2 12/22/2021 20:09
3,3-Dichlorobenzidine ND H 0.0050 2 12/22/2021 20:09
2,4-Dichlorophenol ND H 0.0026 2 12/22/2021 20:09
Diethyl Phthalate ND H 0.026 2 12/22/2021 20:09
2,4-Dimethylphenol ND H 0.50 2 12/22/2021 20:09
Dimethyl Phthalate ND H 0.0050 2 12/22/2021 20:09
4,6-Dinitro-2-methylphenol ND H 2.5 2 12/22/2021 20:09
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-6-1.5 2112A92-009A Soil 11/10/2021 GC47 12222124.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.50 2 12/22/2021 20:09
2,4-Dinitrotoluene ND H 0.026 2 12/22/2021 20:09
2,6-Dinitrotoluene ND H 0.026 2 12/22/2021 20:09
Di-n-octyl Phthalate ND H 1.0 2 12/22/2021 20:09
1,2-Diphenylhydrazine ND H 0.50 2 12/22/2021 20:09
Fluoranthene ND H 0.0026 2 12/22/2021 20:09
Fluorene ND H 0.0050 2 12/22/2021 20:09
Hexachlorobenzene ND H 0.0026 2 12/22/2021 20:09
Hexachlorobutadiene ND H 0.0050 2 12/22/2021 20:09
Hexachlorocyclopentadiene ND H 4.0 2 12/22/2021 20:09
Hexachloroethane ND H 0.026 2 12/22/2021 20:09
Indeno (1,2,3-cd) pyrene ND H 0.026 2 12/22/2021 20:09
Isophorone ND H 0.50 2 12/22/2021 20:09
1-Methylnaphthalene ND H 0.0026 2 12/22/2021 20:09
2-Methylnaphthalene ND H 0.0050 2 12/22/2021 20:09
2-Methylphenol (o-Cresol) ND H 0.50 2 12/22/2021 20:09
3 & 4-Methylphenol (m,p-Cresol) ND H 0.50 2 12/22/2021 20:09 Naphthalene ND H 0.0026 2 12/22/2021 20:09
2-Nitroaniline ND H 2.5 2 12/22/2021 20:09
3-Nitroaniline ND H 2.5 2 12/22/2021 20:09
4-Nitroaniline ND H 2.5 2 12/22/2021 20:09
Nitrobenzene ND H 0.50 2 12/22/2021 20:09
2-Nitrophenol ND H 2.5 2 12/22/2021 20:09
4-Nitrophenol ND H 2.5 2 12/22/2021 20:09
N-Nitrosodimethylamine ND H 2.5 2 12/22/2021 20:09
N-Nitrosodiphenylamine ND H 0.50 2 12/22/2021 20:09
N-Nitrosodi-n-propylamine ND H 0.50 2 12/22/2021 20:09
Pentachlorophenol ND H 0.12 2 12/22/2021 20:09
Phenanthrene ND H 0.010 2 12/22/2021 20:09
Phenol ND H 0.10 2 12/22/2021 20:09
Pyrene ND H 0.0050 2 12/22/2021 20:09
Pyridine ND H 0.50 2 12/22/2021 20:09
1,2,4-Trichlorobenzene ND H 0.50 2 12/22/2021 20:09
2,4,5-Trichlorophenol ND H 0.0050 2 12/22/2021 20:09
2,4,6-Trichlorophenol ND H 0.026 2 12/22/2021 20:09
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-6-3.0 2112A92-010A Soil 11/10/2021 GC47 12222125.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0013 1 12/22/2021 20:36
Acenaphthylene ND H 0.0013 1 12/22/2021 20:36
Acetochlor ND H 0.25 1 12/22/2021 20:36
Anthracene ND H 0.0013 1 12/22/2021 20:36
Benzidine ND H 1.2 1 12/22/2021 20:36
Benzo (a) anthracene ND H 0.013 1 12/22/2021 20:36
Benzo (a) pyrene ND H 0.0025 1 12/22/2021 20:36
Benzo (b) fluoranthene ND H 0.0063 1 12/22/2021 20:36
Benzo (g,h,i) perylene ND H 0.0025 1 12/22/2021 20:36
Benzo (k) fluoranthene ND H 0.0013 1 12/22/2021 20:36
Benzyl Alcohol ND H 1.2 1 12/22/2021 20:36
1,1-Biphenyl ND H 0.013 1 12/22/2021 20:36
Bis (2-chloroethoxy) Methane ND H 0.25 1 12/22/2021 20:36 Bis (2-chloroethyl) Ether ND H 0.0013 1 12/22/2021 20:36 Bis (2-chloroisopropyl) Ether ND H 0.0013 1 12/22/2021 20:36 Bis (2-ethylhexyl) Adipate ND H 0.25 1 12/22/2021 20:36 Bis (2-ethylhexyl) Phthalate ND H 0.025 1 12/22/2021 20:36 4-Bromophenyl Phenyl Ether ND H 0.25 1 12/22/2021 20:36 Butylbenzyl Phthalate ND H 0.025 1 12/22/2021 20:36
4-Chloroaniline ND H 0.0025 1 12/22/2021 20:36
4-Chloro-3-methylphenol ND H 0.25 1 12/22/2021 20:36
2-Chloronaphthalene ND H 0.25 1 12/22/2021 20:36
2-Chlorophenol ND H 0.013 1 12/22/2021 20:36
4-Chlorophenyl Phenyl Ether ND H 0.25 1 12/22/2021 20:36 Chrysene ND H 0.0025 1 12/22/2021 20:36
Dibenzo (a,h) anthracene ND H 0.0025 1 12/22/2021 20:36 Dibenzofuran ND H 0.0013 1 12/22/2021 20:36
Di-n-butyl Phthalate ND H 0.013 1 12/22/2021 20:36
1,2-Dichlorobenzene ND H 0.25 1 12/22/2021 20:36
1,3-Dichlorobenzene ND H 0.25 1 12/22/2021 20:36
1,4-Dichlorobenzene ND H 0.25 1 12/22/2021 20:36
3,3-Dichlorobenzidine ND H 0.0025 1 12/22/2021 20:36
2,4-Dichlorophenol ND H 0.0013 1 12/22/2021 20:36
Diethyl Phthalate ND H 0.013 1 12/22/2021 20:36
2,4-Dimethylphenol ND H 0.25 1 12/22/2021 20:36
Dimethyl Phthalate ND H 0.0025 1 12/22/2021 20:36
4,6-Dinitro-2-methylphenol ND H 1.2 1 12/22/2021 20:36
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-6-3.0 2112A92-010A Soil 11/10/2021 GC47 12222125.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.25 1 12/22/2021 20:36
2,4-Dinitrotoluene ND H 0.013 1 12/22/2021 20:36
2,6-Dinitrotoluene ND H 0.013 1 12/22/2021 20:36
Di-n-octyl Phthalate ND H 0.50 1 12/22/2021 20:36
1,2-Diphenylhydrazine ND H 0.25 1 12/22/2021 20:36
Fluoranthene ND H 0.0013 1 12/22/2021 20:36
Fluorene ND H 0.0025 1 12/22/2021 20:36
Hexachlorobenzene ND H 0.0013 1 12/22/2021 20:36
Hexachlorobutadiene ND H 0.0025 1 12/22/2021 20:36
Hexachlorocyclopentadiene ND H 2.0 1 12/22/2021 20:36
Hexachloroethane ND H 0.013 1 12/22/2021 20:36
Indeno (1,2,3-cd) pyrene ND H 0.013 1 12/22/2021 20:36
Isophorone ND H 0.25 1 12/22/2021 20:36
1-Methylnaphthalene ND H 0.0013 1 12/22/2021 20:36
2-Methylnaphthalene ND H 0.0025 1 12/22/2021 20:36
2-Methylphenol (o-Cresol) ND H 0.25 1 12/22/2021 20:36
3 & 4-Methylphenol (m,p-Cresol) ND H 0.25 1 12/22/2021 20:36 Naphthalene ND H 0.0013 1 12/22/2021 20:36
2-Nitroaniline ND H 1.2 1 12/22/2021 20:36
3-Nitroaniline ND H 1.2 1 12/22/2021 20:36
4-Nitroaniline ND H 1.2 1 12/22/2021 20:36
Nitrobenzene ND H 0.25 1 12/22/2021 20:36
2-Nitrophenol ND H 1.2 1 12/22/2021 20:36
4-Nitrophenol ND H 1.2 1 12/22/2021 20:36
N-Nitrosodimethylamine ND H 1.2 1 12/22/2021 20:36
N-Nitrosodiphenylamine ND H 0.25 1 12/22/2021 20:36
N-Nitrosodi-n-propylamine ND H 0.25 1 12/22/2021 20:36
Pentachlorophenol ND H 0.062 1 12/22/2021 20:36
Phenanthrene ND H 0.0050 1 12/22/2021 20:36
Phenol ND H 0.050 1 12/22/2021 20:36
Pyrene ND H 0.0025 1 12/22/2021 20:36
Pyridine ND H 0.25 1 12/22/2021 20:36
1,2,4-Trichlorobenzene ND H 0.25 1 12/22/2021 20:36
2,4,5-Trichlorophenol ND H 0.0025 1 12/22/2021 20:36
2,4,6-Trichlorophenol ND H 0.013 1 12/22/2021 20:36
(Cont.)

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Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-6-4.5 2112A92-011A Soil 11/10/2021 GC21 12232123.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID Acenaphthene ND H 0.0013 1 12/23/2021 19:53
Acenaphthylene ND H 0.0013 1 12/23/2021 19:53
Acetochlor ND H 0.25 1 12/23/2021 19:53
Anthracene ND H 0.0013 1 12/23/2021 19:53
Benzidine ND H 1.2 1 12/23/2021 19:53
Benzo (a) anthracene ND H 0.013 1 12/23/2021 19:53
Benzo (a) pyrene ND H 0.0025 1 12/23/2021 19:53
Benzo (b) fluoranthene ND H 0.0063 1 12/23/2021 19:53
Benzo (g,h,i) perylene ND H 0.0025 1 12/23/2021 19:53
Benzo (k) fluoranthene ND H 0.0013 1 12/23/2021 19:53
Benzyl Alcohol ND H 1.2 1 12/23/2021 19:53
1,1-Biphenyl ND H 0.013 1 12/23/2021 19:53
Bis (2-chloroethoxy) Methane ND H 0.25 1 12/23/2021 19:53 Bis (2-chloroethyl) Ether ND H 0.0013 1 12/23/2021 19:53 Bis (2-chloroisopropyl) Ether ND H 0.0013 1 12/23/2021 19:53 Bis (2-ethylhexyl) Adipate ND H 0.25 1 12/23/2021 19:53 Bis (2-ethylhexyl) Phthalate ND H 0.025 1 12/23/2021 19:53 4-Bromophenyl Phenyl Ether ND H 0.25 1 12/23/2021 19:53 Butylbenzyl Phthalate ND H 0.025 1 12/23/2021 19:53
4-Chloroaniline ND H 0.0025 1 12/23/2021 19:53
4-Chloro-3-methylphenol ND H 0.25 1 12/23/2021 19:53
2-Chloronaphthalene ND H 0.25 1 12/23/2021 19:53
2-Chlorophenol ND H 0.013 1 12/23/2021 19:53
4-Chlorophenyl Phenyl Ether ND H 0.25 1 12/23/2021 19:53 Chrysene ND H 0.0025 1 12/23/2021 19:53
Dibenzo (a,h) anthracene ND H 0.0025 1 12/23/2021 19:53 Dibenzofuran ND H 0.0013 1 12/23/2021 19:53
Di-n-butyl Phthalate ND H 0.013 1 12/23/2021 19:53
1,2-Dichlorobenzene ND H 0.25 1 12/23/2021 19:53
1,3-Dichlorobenzene ND H 0.25 1 12/23/2021 19:53
1,4-Dichlorobenzene ND H 0.25 1 12/23/2021 19:53
3,3-Dichlorobenzidine ND H 0.0025 1 12/23/2021 19:53
2,4-Dichlorophenol ND H 0.0013 1 12/23/2021 19:53
Diethyl Phthalate ND H 0.013 1 12/23/2021 19:53
2,4-Dimethylphenol ND H 0.25 1 12/23/2021 19:53
Dimethyl Phthalate ND H 0.0025 1 12/23/2021 19:53
4,6-Dinitro-2-methylphenol ND H 1.2 1 12/23/2021 19:53
(Cont.)

Page 58 of 105 ends

Analytical Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Received: 12/17/2021 16:00
Date Prepared: 12/20/2021
WorkOrder: 2112A92
Extraction Method: SW3550B/3640A
Analytical Method: SW8270C
Unit: mg/Kg
Semi-Volatile Organics (Low Level) with GPC Cleanup
B-6-4.5 2112A92-011A Soil 11/10/2021 GC21 12232123.D 235941 Analytes Result Qualifiers RL DF Date Analyzed
Client ID Lab ID Matrix Date Collected Instrument Batch ID 2,4-Dinitrophenol ND H 0.25 1 12/23/2021 19:53
2,4-Dinitrotoluene ND H 0.013 1 12/23/2021 19:53
2,6-Dinitrotoluene ND H 0.013 1 12/23/2021 19:53
Di-n-octyl Phthalate ND H 0.50 1 12/23/2021 19:53
1,2-Diphenylhydrazine ND H 0.25 1 12/23/2021 19:53
Fluoranthene ND H 0.0013 1 12/23/2021 19:53
Fluorene ND H 0.0025 1 12/23/2021 19:53
Hexachlorobenzene ND H 0.0013 1 12/23/2021 19:53
Hexachlorobutadiene ND H 0.0025 1 12/23/2021 19:53
Hexachlorocyclopentadiene ND H 2.0 1 12/23/2021 19:53
Hexachloroethane ND H 0.013 1 12/23/2021 19:53
Indeno (1,2,3-cd) pyrene ND H 0.013 1 12/23/2021 19:53
Isophorone ND H 0.25 1 12/23/2021 19:53
1-Methylnaphthalene ND H 0.0013 1 12/23/2021 19:53
2-Methylnaphthalene ND H 0.0025 1 12/23/2021 19:53
2-Methylphenol (o-Cresol) ND H 0.25 1 12/23/2021 19:53
3 & 4-Methylphenol (m,p-Cresol) ND H 0.25 1 12/23/2021 19:53 Naphthalene ND H 0.0013 1 12/23/2021 19:53
2-Nitroaniline ND H 1.2 1 12/23/2021 19:53
3-Nitroaniline ND H 1.2 1 12/23/2021 19:53
4-Nitroaniline ND H 1.2 1 12/23/2021 19:53
Nitrobenzene ND H 0.25 1 12/23/2021 19:53
2-Nitrophenol ND H 1.2 1 12/23/2021 19:53
4-Nitrophenol ND H 1.2 1 12/23/2021 19:53
N-Nitrosodimethylamine ND H 1.2 1 12/23/2021 19:53
N-Nitrosodiphenylamine ND H 0.25 1 12/23/2021 19:53
N-Nitrosodi-n-propylamine ND H 0.25 1 12/23/2021 19:53
Pentachlorophenol ND H 0.062 1 12/23/2021 19:53
Phenanthrene ND H 0.0050 1 12/23/2021 19:53
Phenol ND H 0.050 1 12/23/2021 19:53
Pyrene ND H 0.0025 1 12/23/2021 19:53
Pyridine ND H 0.25 1 12/23/2021 19:53
1,2,4-Trichlorobenzene ND H 0.25 1 12/23/2021 19:53
2,4,5-Trichlorophenol ND H 0.0025 1 12/23/2021 19:53
2,4,6-Trichlorophenol ND H 0.013 1 12/23/2021 19:53
(Cont.)

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Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/21/2021
WorkOrder: 2112A92
BatchID: 236038
Analytical Method: SW8081A/8082
Unit: mg/kg
Sample ID: MB/LCS/LCSD-236038
Instrument: GC23
Matrix: Soil
Extraction Method: SW3550B/3640Am/3630Cm
QC Summary Report for SW8081A/8082
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Aldrin ND 0.0000360 0.000100 - - -
a-BHC ND 0.0000250 0.000100 - - -
b-BHC ND 0.000250 0.000300 - - -
d-BHC ND 0.000130 0.000200 - - -
g-BHC ND 0.0000660 0.000100 - - -
a-Chlordane ND 0.0000950 0.000100 - - -
g-Chlordane ND 0.0000470 0.000100 - - -
p,p-DDD ND 0.0000430 0.000100 - - -
p,p-DDE ND 0.0000940 0.000100 - - -
p,p-DDT ND 0.0000920 0.000100 - - -
Dieldrin ND 0.0000610 0.000100 - - -
Endosulfan I ND 0.0000480 0.000100 - - -
Endosulfan II ND 0.0000760 0.000100 - - -
Endosulfan sulfate ND 0.0000780 0.000100 - - -
Endrin ND 0.0000350 0.000100 - - -
Endrin aldehyde ND 0.0000670 0.000100 - - -
Endrin ketone ND 0.0000840 0.000100 - - -
Heptachlor ND 0.0000400 0.000100 - - -
Heptachlor epoxide ND 0.0000540 0.000100 - - -
Hexachlorobenzene ND 0.000110 0.00100 - - -
Hexachlorocyclopentadiene ND 0.000340 0.00200 - - -
Methoxychlor ND 0.000130 0.000200 - - -
Toxaphene ND 0.00340 0.00500 - - -
Aroclor1016 ND 0.00200 0.00500 - - -
Aroclor1221 ND 0.00220 0.00500 - - -
Aroclor1232 ND 0.00220 0.00500 - - -
Aroclor1242 ND 0.00220 0.00500 - - -
Aroclor1248 ND 0.00220 0.00500 - - -
Aroclor1254 ND 0.00220 0.00500 - - -
Aroclor1260 ND 0.00220 0.00500 - - -
Surrogate Recovery
Decachlorobiphenyl 0.00618 0.005 124 28-170
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

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LCS/LCSD
Limits

RPD RPD
Limit
Aldrin 0.00351 0.00383 0.0050 70 77 31-155 8.69 20
a-BHC 0.00386 0.00416 0.0050 77 83 32-160 7.56 20
b-BHC 0.00353 0.00385 0.0050 71 77 44-149 8.80 20
d-BHC 0.00354 0.00388 0.0050 71 78 37-157 9.07 20
g-BHC 0.00370 0.00409 0.0050 74 82 43-154 10.0 20
a-Chlordane 0.00370 0.00405 0.0050 74 81 39-150 9.13 20 g-Chlordane 0.00380 0.00418 0.0050 76 84 39-151 9.47 20 p,p-DDD 0.00507 0.00548 0.0050 101 110 30-158 7.93 20
p,p-DDE 0.00387 0.00427 0.0050 77 85 47-149 9.85 20
p,p-DDT 0.00451 0.00496 0.0050 90 99 56-166 9.41 20
Dieldrin 0.00432 0.00466 0.0050 86 93 50-163 7.73 20
Endosulfan I 0.00430 0.00465 0.0050 86 93 45-159 7.79 20 Endosulfan II 0.00432 0.00467 0.0050 86 93 41-155 7.65 20 Endosulfan sulfate 0.00416 0.00449 0.0050 83 90 45-156 7.56 20 Endrin 0.00461 0.00498 0.0050 92 100 54-154 7.82 20
Endrin aldehyde 0.00453 0.00495 0.0050 91 99 27-159 8.94 20 Endrin ketone 0.00419 0.00453 0.0050 84 91 40-147 7.72 20 Heptachlor 0.00456 0.00499 0.0050 91 100 52-165 8.91 20 Heptachlor epoxide 0.00391 0.00425 0.0050 78 85 46-145 8.21 20 Hexachlorobenzene 0.00304 0.00331 0.0050 61 66 22-156 8.58 20 Hexachlorocyclopentadiene 0.00393 0.00354 0.0050 79 71 43-173 10.4 20 Methoxychlor 0.00534 0.00576 0.0050 107 115 49-150 7.66 20 Aroclor1016 0.0118 0.0130 0.015 79 87 49-120 9.26 20
Aroclor1260 0.0123 0.0134 0.015 82 89 48-160 8.20 20
Surrogate Recovery
Decachlorobiphenyl 0.00658 0.00677 0.0050 132 135 28-170 2.89 20 CA ELAP 1644 • NELAP 4033ORELAP

Page 82 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235908
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-235908
Instrument: GC45
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Acetone ND 0.120 0.200 - - -
tert-Amyl methyl ether (TAME) ND 0.00120 0.00500 - - -
Benzene ND 0.000950 0.00500 - - -
Bromobenzene ND 0.00120 0.00500 - - -
Bromochloromethane ND 0.00110 0.00500 - - -
Bromodichloromethane ND 0.000230 0.00500 - - -
Bromoform ND 0.00380 0.00500 - - -
Bromomethane ND 0.00180 0.00500 - - -
2-Butanone (MEK) ND 0.0400 0.100 - - -
t-Butyl alcohol (TBA) ND 0.0240 0.0500 - - -
n-Butyl benzene ND 0.00160 0.00500 - - -
sec-Butyl benzene ND 0.00180 0.00500 - - -
tert-Butyl benzene ND 0.00210 0.00500 - - -
Carbon Disulfide ND 0.00110 0.00500 - - -
Carbon Tetrachloride ND 0.000170 0.00500 - - -
Chlorobenzene ND 0.00120 0.00500 - - -
Chloroethane ND 0.00170 0.00500 - - -
Chloroform ND 0.000320 0.00500 - - -
Chloromethane ND 0.00170 0.00500 - - -
2-Chlorotoluene ND 0.00160 0.00500 - - -
4-Chlorotoluene ND 0.00130 0.00500 - - -
Dibromochloromethane ND 0.000400 0.00500 - - -
1,2-Dibromo-3-chloropropane ND 0.000480 0.000500 - - -
1,2-Dibromoethane (EDB) ND 0.000130 0.000250 - - -
Dibromomethane ND 0.00120 0.00500 - - -
1,2-Dichlorobenzene ND 0.00170 0.00500 - - -
1,3-Dichlorobenzene ND 0.00150 0.00500 - - -
1,4-Dichlorobenzene ND 0.00150 0.00500 - - -
Dichlorodifluoromethane ND 0.000630 0.00500 - - -
1,1-Dichloroethane ND 0.00150 0.00500 - - -
1,2-Dichloroethane (1,2-DCA) ND 0.0000700 0.000100 - - - 1,1-Dichloroethene ND 0.000110 0.00500 - - -
cis-1,2-Dichloroethene ND 0.00120 0.00500 - - -
trans-1,2-Dichloroethene ND 0.00120 0.00500 - - -
1,2-Dichloropropane ND 0.00130 0.00500 - - -
1,3-Dichloropropane ND 0.000880 0.00500 - - -
2,2-Dichloropropane ND 0.00190 0.00500 - - -
1,1-Dichloropropene ND 0.00180 0.00500 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 83 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235908
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-235908
Instrument: GC45
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
cis-1,3-Dichloropropene ND 0.000980 0.00500 - - -
trans-1,3-Dichloropropene 0.00117,J 0.000970 0.00500 - - - Diisopropyl ether (DIPE) ND 0.00180 0.00500 - - -
Ethylbenzene ND 0.00110 0.00500 - - -
Ethyl tert-butyl ether (ETBE) ND 0.00140 0.00500 - - -
Freon 113 ND 0.00110 0.00500 - - -
Hexachlorobutadiene ND 0.00120 0.00500 - - -
Hexachloroethane ND 0.000640 0.00500 - - -
2-Hexanone ND 0.00270 0.00500 - - -
Isopropylbenzene ND 0.00180 0.00500 - - -
4-Isopropyl toluene ND 0.00190 0.00500 - - -
Methyl-t-butyl ether (MTBE) ND 0.00150 0.00500 - - -
Methylene chloride ND 0.0120 0.0200 - - -
4-Methyl-2-pentanone (MIBK) ND 0.00170 0.00500 - - -
Naphthalene ND 0.00300 0.00500 - - -
n-Propyl benzene ND 0.00190 0.00500 - - -
Styrene ND 0.00140 0.00500 - - -
1,1,1,2-Tetrachloroethane ND 0.00130 0.00500 - - -
1,1,2,2-Tetrachloroethane ND 0.000440 0.00500 - - -
Tetrachloroethene ND 0.000290 0.00500 - - -
Toluene ND 0.00160 0.00500 - - -
1,2,3-Trichlorobenzene ND 0.00210 0.00500 - - -
1,2,4-Trichlorobenzene ND 0.00160 0.00500 - - -
1,1,1-Trichloroethane ND 0.00160 0.00500 - - -
1,1,2-Trichloroethane ND 0.00120 0.00500 - - -
Trichloroethene ND 0.00140 0.00500 - - -
Trichlorofluoromethane ND 0.00130 0.00500 - - -
1,2,3-Trichloropropane ND 0.000170 0.000250 - - -
1,2,4-Trimethylbenzene ND 0.00160 0.00500 - - -
1,3,5-Trimethylbenzene ND 0.00170 0.00500 - - -
Vinyl Chloride ND 0.000120 0.000250 - - -
m,p-Xylene ND 0.00260 0.00500 - - -
o-Xylene ND 0.00140 0.00500 - - -
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 84 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235908
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-235908
Instrument: GC45
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Surrogate Recovery
Dibromofluoromethane 0.110 0.125 88 70-140
Toluene-d8 0.116 0.125 93 70-140
4-BFB 0.0110 0.0125 88 70-140
Benzene-d6 0.113 0.1 113 70-140
Ethylbenzene-d10 0.122 0.1 122 70-140
1,2-DCB-d4 0.0908 0.1 91 70-140
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 85 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235908
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-235908
Instrument: GC45
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Acetone 0.304 0.282 0.20 152,F2 141,F2 60-140 7.42 20
tert-Amyl methyl ether (TAME) 0.0144 0.0146 0.020 72 73 50-140 1.07 20 Benzene 0.0202 0.0200 0.020 101 100 60-140 0.947 20
Bromobenzene 0.0217 0.0219 0.020 108 109 60-140 0.946 20 Bromochloromethane 0.0217 0.0213 0.020 108 107 60-140 1.66 20 Bromodichloromethane 0.0194 0.0184 0.020 97 92 60-140 5.08 20 Bromoform 0.0139 0.0134 0.020 69 67 40-140 3.28 20
Bromomethane 0.0246 0.0305 0.020 123 153,F2 30-140 21.4,F2 20 2-Butanone (MEK) 0.0851 0.0828 0.080 106 104 50-140 2.72 20 t-Butyl alcohol (TBA) 0.0812 0.0749 0.080 102 94 50-140 8.05 20 n-Butyl benzene 0.0268 0.0260 0.020 134 130 60-150 3.02 20 sec-Butyl benzene 0.0258 0.0255 0.020 129 128 60-150 1.13 20 tert-Butyl benzene 0.0258 0.0254 0.020 129 127 60-140 1.61 20 Carbon Disulfide 0.0242 0.0255 0.020 121 127 50-140 5.27 20 Carbon Tetrachloride 0.0214 0.0205 0.020 107 103 60-140 3.99 20 Chlorobenzene 0.0203 0.0201 0.020 101 100 60-140 1.07 20 Chloroethane 0.0262 0.0256 0.020 131 128 50-140 2.26 20 Chloroform 0.0217 0.0212 0.020 108 106 60-140 2.00 20
Chloromethane 0.0220 0.0221 0.020 110 111 20-140 0.376 20 2-Chlorotoluene 0.0241 0.0237 0.020 121 119 60-140 1.69 20 4-Chlorotoluene 0.0236 0.0230 0.020 118 115 60-140 2.87 20 Dibromochloromethane 0.0162 0.0153 0.020 81 76 50-140 5.89 20 1,2-Dibromo-3-chloropropane 0.00884 0.00891 0.010 88 89 30-140 0.793 20 1,2-Dibromoethane (EDB) 0.0100 0.00968 0.010 100 97 40-140 3.56 20 Dibromomethane 0.0212 0.0200 0.020 106 100 60-140 5.67 20 1,2-Dichlorobenzene 0.0181 0.0182 0.020 90 91 60-140 0.721 20 1,3-Dichlorobenzene 0.0206 0.0202 0.020 103 101 60-140 1.81 20 1,4-Dichlorobenzene 0.0210 0.0211 0.020 105 105 60-140 0.391 20 Dichlorodifluoromethane 0.0136 0.0130 0.020 68 65 10-140 5.06 20 1,1-Dichloroethane 0.0218 0.0213 0.020 109 106 60-140 2.14 20 1,2-Dichloroethane (1,2-DCA) 0.0199 0.0198 0.020 100 99 60-140 0.672 20 1,1-Dichloroethene 0.0205 0.0201 0.020 103 100 60-140 2.06 20 cis-1,2-Dichloroethene 0.0207 0.0207 0.020 104 104 60-140 0.0804 20 trans-1,2-Dichloroethene 0.0209 0.0211 0.020 105 106 60-140 1.01 20 1,2-Dichloropropane 0.0206 0.0201 0.020 103 101 60-140 2.34 20 1,3-Dichloropropane 0.0210 0.0207 0.020 105 103 60-140 1.52 20 2,2-Dichloropropane 0.0189 0.0189 0.020 95 95 60-140 0.0227 20 1,1-Dichloropropene 0.0205 0.0206 0.020 103 103 60-140 0.293 20 CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 86 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235908
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-235908
Instrument: GC45
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
cis-1,3-Dichloropropene 0.0186 0.0181 0.020 93 91 60-140 2.69 20 trans-1,3-Dichloropropene 0.0188 0.0185 0.020 94 93 60-140 1.24 20 Diisopropyl ether (DIPE) 0.0187 0.0183 0.020 93 91 60-140 2.16 20 Ethylbenzene 0.0227 0.0223 0.020 113 111 60-140 1.77 20 Ethyl tert-butyl ether (ETBE) 0.0166 0.0164 0.020 83 82 60-140 1.27 20 Freon 113 0.0206 0.0205 0.020 103 102 50-140 0.768 20
Hexachlorobutadiene 0.0249 0.0239 0.020 124 119 60-140 4.01 20 Hexachloroethane 0.0222 0.0213 0.020 111 107 60-140 3.81 20 2-Hexanone 0.0195 0.0186 0.020 97 93 40-140 4.71 20
Isopropylbenzene 0.0273 0.0267 0.020 136 134 60-140 1.94 20 4-Isopropyl toluene 0.0254 0.0253 0.020 127 126 60-150 0.340 20 Methyl-t-butyl ether (MTBE) 0.0179 0.0176 0.020 89 88 50-140 1.89 20 Methylene chloride 0.0195 0.0190 0.020 97 95 60-140 2.49 20 4-Methyl-2-pentanone (MIBK) 0.0161 0.0162 0.020 81 81 50-140 0.0207 20 Naphthalene 0.0141 0.00880 0.020 70 44 30-140 46.3,F2 20 n-Propyl benzene 0.0267 0.0262 0.020 134 131 60-140 1.78 20 Styrene 0.0190 0.0189 0.020 95 95 60-140 0.351 20
1,1,1,2-Tetrachloroethane 0.0197 0.0187 0.020 99 93 60-140 5.52 20 1,1,2,2-Tetrachloroethane 0.0218 0.0215 0.020 109 107 40-140 1.47 20 Tetrachloroethene 0.0216 0.0208 0.020 108 104 60-140 3.64 20 Toluene 0.0195 0.0190 0.020 97 95 60-140 2.30 20
1,2,3-Trichlorobenzene 0.0120 0.0114 0.020 60 57 40-140 4.40 20 1,2,4-Trichlorobenzene 0.0141 0.0136 0.020 71 68 50-140 3.92 20 1,1,1-Trichloroethane 0.0207 0.0201 0.020 103 101 60-140 2.83 20 1,1,2-Trichloroethane 0.0199 0.0194 0.020 99 97 60-140 2.40 20 Trichloroethene 0.0216 0.0211 0.020 108 105 60-140 2.28 20 Trichlorofluoromethane 0.0213 0.0207 0.020 106 103 50-140 2.96 20 1,2,3-Trichloropropane 0.0118 0.0118 0.010 119 118 40-140 0.692 20 1,2,4-Trimethylbenzene 0.0237 0.0230 0.020 119 115 30-140 3.06 20 1,3,5-Trimethylbenzene 0.0246 0.0239 0.020 123 120 60-140 2.93 20 Vinyl Chloride 0.0123 0.0121 0.010 123 121 30-140 1.33 20 m,p-Xylene 0.0454 0.0443 0.040 113 111 60-140 2.52 20
o-Xylene 0.0210 0.0205 0.020 105 103 60-140 2.49 20
CA ELAP 1644 • NELAP 4033ORELAP
(Cont.)

Page 87 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/23/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235908
Analytical Method: SW8260B
Unit: mg/kg
Sample ID: MB/LCS/LCSD-235908
Instrument: GC45
Matrix: Soil
Extraction Method: SW5030B
QC Summary Report for SW8260B
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Surrogate Recovery
Dibromofluoromethane 0.114 0.114 0.12 91 92 70-140 0.668 20 Toluene-d8 0.116 0.116 0.12 93 93 70-140 0.141 20
4-BFB 0.0112 0.0115 0.012 90 92 70-140 2.06 20
Benzene-d6 0.111 0.110 0.10 111 110 70-140 0.910 20
Ethylbenzene-d10 0.121 0.119 0.10 121 119 70-140 1.38 20 1,2-DCB-d4 0.0898 0.0899 0.10 90 90 70-140 0.135 20
CA ELAP 1644 • NELAP 4033ORELAP

Page 88 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/21/2021 - 12/22/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235941
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-235941
Instrument: GC47, GC48
Matrix: Soil
Extraction Method: SW3550B/3640A
QC Summary Report for SW8270C (Low Level) w/ GPC
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
1-Methylnaphthalene ND 0.000350 0.00130 - - -
2,3,4,6-Tetrachlorophenol ND 0.150 0.250 - - -
Benzoic Acid ND 0.620 1.20 - - -
Acenaphthene ND 0.000440 0.00130 - - -
Acenaphthylene ND 0.000230 0.00130 - - -
Acetochlor ND 0.110 0.250 - - -
Anthracene ND 0.000600 0.00130 - - -
Benzidine ND 0.400 1.20 - - -
Benzo (a) anthracene ND 0.00300 0.0130 - - -
Benzo (a) pyrene ND 0.000780 0.00250 - - -
Benzo (b) fluoranthene ND 0.00290 0.00630 - - -
Benzo (g,h,i) perylene ND 0.000860 0.00250 - - -
Benzo (k) fluoranthene ND 0.00120 0.00130 - - -
Benzyl Alcohol ND 0.730 1.20 - - -
1,1-Biphenyl ND 0.00540 0.0130 - - -
Bis (2-chloroethoxy) Methane ND 0.130 0.250 - - -
Bis (2-chloroethyl) Ether ND 0.000330 0.00130 - - -
Bis (2-chloroisopropyl) Ether ND 0.000720 0.00130 - - - Bis (2-ethylhexyl) Adipate ND 0.180 0.250 - - -
Bis (2-ethylhexyl) Phthalate ND 0.00790 0.0250 - - -
4-Bromophenyl Phenyl Ether ND 0.120 0.250 - - -
Butylbenzyl Phthalate ND 0.00570 0.0250 - - -
4-Chloroaniline ND 0.000990 0.00250 - - -
4-Chloro-3-methylphenol ND 0.130 0.250 - - -
2-Chloronaphthalene ND 0.120 0.250 - - -
2-Chlorophenol ND 0.00610 0.0130 - - -
4-Chlorophenyl Phenyl Ether ND 0.120 0.250 - - -
Chrysene ND 0.000730 0.00250 - - -
Dibenzo (a,h) anthracene ND 0.00130 0.00250 - - -
Dibenzofuran ND 0.000320 0.00130 - - -
Di-n-butyl Phthalate ND 0.00700 0.0130 - - -
1,2-Dichlorobenzene ND 0.140 0.250 - - -
1,3-Dichlorobenzene ND 0.130 0.250 - - -
1,4-Dichlorobenzene ND 0.120 0.250 - - -
3,3-Dichlorobenzidine ND 0.00220 0.00250 - - -
2,4-Dichlorophenol ND 0.000810 0.00130 - - -
Diethyl Phthalate ND 0.00530 0.0130 - - -
2,4-Dimethylphenol ND 0.110 0.250 - - -
(Cont.)

Page 89 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/21/2021 - 12/22/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235941
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-235941
Instrument: GC47, GC48
Matrix: Soil
Extraction Method: SW3550B/3640A
QC Summary Report for SW8270C (Low Level) w/ GPC
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Dimethyl Phthalate ND 0.00100 0.00250 - - -
4,6-Dinitro-2-methylphenol ND 0.550 1.20 - - -
2,4-Dinitrophenol ND 0.110 0.250 - - -
2,4-Dinitrotoluene ND 0.000410 0.0130 - - -
2,6-Dinitrotoluene ND 0.000540 0.0130 - - -
Di-n-octyl Phthalate ND 0.310 0.500 - - -
1,2-Diphenylhydrazine ND 0.110 0.250 - - -
Fluoranthene ND 0.000730 0.00130 - - -
Fluorene ND 0.000780 0.00250 - - -
Hexachlorobenzene 0.00102,J 0.000380 0.00130 - - -
Hexachlorobutadiene ND 0.000280 0.00250 - - -
Hexachlorocyclopentadiene ND 0.660 2.00 - - -
Hexachloroethane ND 0.000650 0.0130 - - -
Indeno (1,2,3-cd) pyrene ND 0.00140 0.0130 - - -
Isophorone ND 0.0550 0.250 - - -
2-Methylnaphthalene ND 0.000440 0.00250 - - -
2-Methylphenol (o-Cresol) ND 0.150 0.250 - - -
3 & 4-Methylphenol (m,p-Cresol) ND 0.140 0.250 - - -
Naphthalene ND 0.000930 0.00130 - - -
2-Nitroaniline ND 0.590 1.20 - - -
3-Nitroaniline ND 0.730 1.20 - - -
4-Nitroaniline ND 0.640 1.20 - - -
Nitrobenzene ND 0.140 0.250 - - -
2-Nitrophenol ND 0.630 1.20 - - -
4-Nitrophenol ND 0.700 1.20 - - -
N-Nitrosodimethylamine ND 0.610 1.20 - - -
N-Nitrosodiphenylamine ND 0.110 0.250 - - -
N-Nitrosodi-n-propylamine ND 0.140 0.250 - - -
Pentachlorophenol ND 0.0320 0.0620 - - -
Phenanthrene ND 0.00100 0.00500 - - -
Phenol ND 0.00320 0.0500 - - -
Pyrene ND 0.000650 0.00250 - - -
Pyridine ND 0.0940 0.250 - - -
1,2,4-Trichlorobenzene ND 0.130 0.250 - - -
2,4,5-Trichlorophenol ND 0.000670 0.00250 - - -
2,4,6-Trichlorophenol ND 0.000620 0.0130 - - -
(Cont.)

Page 90 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/21/2021 - 12/22/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235941
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-235941
Instrument: GC47, GC48
Matrix: Soil
Extraction Method: SW3550B/3640A
QC Summary Report for SW8270C (Low Level) w/ GPC
Analyte MB
Result

MDL RL SPK
Val
MB SS
%REC
MB SS
Limits
Surrogate Recovery
2-Fluorophenol 1.16 1.25 93 60-130
Phenol-d5 1.04 1.25 83 60-130
Nitrobenzene-d5 0.943 1.25 75 60-130
2-Fluorobiphenyl 0.986 1.25 79 60-130
2,4,6-Tribromophenol 0.628 1.25 50 50-130
4-Terphenyl-d14 1.11 1.25 89 50-130
(Cont.)

Page 91 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/21/2021 - 12/22/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235941
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-235941
Instrument: GC47, GC48
Matrix: Soil
Extraction Method: SW3550B/3640A
QC Summary Report for SW8270C (Low Level) w/ GPC
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
1-Methylnaphthalene 0.0360 0.0522 0.062 58,F5 84 60-130 36.9,F2 30 Acenaphthene 0.0376 0.0373 0.062 60 60 60-130 0.763 30
Acenaphthylene 0.0371 0.0364 0.062 59,F5 58,F5 60-130 1.68 30 Acetochlor 0.978 0.949 1.25 78 76 60-130 3.03 30
Anthracene 0.0420 0.0405 0.062 67 65 60-130 3.61 30
Benzidine 3.51 3.37 6.25 56 54 30-130 3.90 30
Benzo (a) anthracene 0.0449 0.0436 0.062 72 70 60-130 2.98 30 Benzo (a) pyrene 0.0456 0.0435 0.062 73 70 60-130 4.71 30 Benzo (b) fluoranthene 0.0450 0.0395 0.062 72 63 40-130 12.9 30 Benzo (g,h,i) perylene 0.0407 0.0393 0.062 65 63 60-130 3.45 30 Benzo (k) fluoranthene 0.0418 0.0424 0.062 67 68 60-130 1.63 30 Benzyl Alcohol 4.06 4.19 6.25 65 67 60-130 3.06 30
1,1-Biphenyl 0.0397 0.0488 0.062 64 78 60-130 20.5 30
Bis (2-chloroethoxy) Methane 0.887 0.853 1.25 71 68 60-130 3.83 30 Bis (2-chloroethyl) Ether 0.0447 0.0462 0.062 72 74 60-130 3.37 30 Bis (2-chloroisopropyl) Ether 0.0468 0.0486 0.062 75 78 60-130 3.87 30 Bis (2-ethylhexyl) Adipate 0.929 0.802 1.25 74 64 40-130 14.7 30 Bis (2-ethylhexyl) Phthalate 0.0437 0.0402 0.062 70 64 60-130 8.18 30 4-Bromophenyl Phenyl Ether 1.01 1.02 1.25 81 81 60-130 0.470 30 Butylbenzyl Phthalate 0.0508 0.0482 0.062 81 77 60-130 5.14 30 4-Chloroaniline 0.0404 0.0416 0.062 65 66 40-130 2.83 30 4-Chloro-3-methylphenol 0.840 1.16 1.25 67 93 60-130 31.7,F2 30 2-Chloronaphthalene 0.879 1.06 1.25 70 85 60-130 19.0 30 2-Chlorophenol 0.0479 0.0500 0.062 77 80 60-130 4.38 30 4-Chlorophenyl Phenyl Ether 0.869 0.852 1.25 70 68 60-130 1.91 30 Chrysene 0.0460 0.0434 0.062 74 69 60-130 5.84 30
Dibenzo (a,h) anthracene 0.0420 0.0392 0.062 67 63 60-130 6.88 30 Dibenzofuran 0.0402 0.0393 0.062 64 63 60-130 2.24 30
Di-n-butyl Phthalate 0.0485 0.0423 0.062 78 68 60-130 13.6 30 1,2-Dichlorobenzene 0.854 0.878 1.25 68 70 60-130 2.73 30 1,3-Dichlorobenzene 0.864 0.885 1.25 69 71 60-130 2.43 30 1,4-Dichlorobenzene 0.808 0.829 1.25 65 66 60-130 2.59 30 3,3-Dichlorobenzidine 0.0499 0.0492 0.062 80 79 40-130 1.33 30 2,4-Dichlorophenol 0.0460 0.0477 0.062 74 76 60-130 3.81 30 Diethyl Phthalate 0.0415 0.0384 0.062 66 62 60-130 7.59 30 2,4-Dimethylphenol 0.898 0.869 1.25 72 70 60-130 3.26 30 Dimethyl Phthalate 0.0385 0.0386 0.062 62 62 60-130 0.360 30 4,6-Dinitro-2-methylphenol 5.20 5.07 6.25 83 81 30-130 2.50 30 (Cont.)

Page 92 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/21/2021 - 12/22/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235941
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-235941
Instrument: GC47, GC48
Matrix: Soil
Extraction Method: SW3550B/3640A
QC Summary Report for SW8270C (Low Level) w/ GPC
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
2,4-Dinitrophenol 0.542 0.526 1.25 43 42 15-130 3.04 30 2,4-Dinitrotoluene 0.0518 0.0506 0.062 83 81 60-130 2.41 30 2,6-Dinitrotoluene 0.0470 0.0462 0.062 75 74 60-130 1.78 30 Di-n-octyl Phthalate 1.10 0.933 1.25 88 75 60-130 16.0 30 1,2-Diphenylhydrazine 0.880 0.870 1.25 70 70 60-130 1.20 30 Fluoranthene 0.0467 0.0451 0.062 75 72 60-130 3.48 30
Fluorene 0.0448 0.0438 0.062 72 70 60-130 2.25 30
Hexachlorobenzene 0.0412 0.0404 0.062 66 65 60-130 1.92 30 Hexachlorobutadiene 0.0414 0.0437 0.062 66 70 60-130 5.42 30 Hexachlorocyclopentadiene 3.94 4.53 6.25 63 72 40-130 13.9 30 Hexachloroethane 0.0449 0.0422 0.062 72 68 60-130 6.18 30 Indeno (1,2,3-cd) pyrene 0.0634 0.0607 0.062 102 97 60-130 4.47 30 Isophorone 0.794 0.793 1.25 64 63 60-130 0.129 30
2-Methylnaphthalene 0.0357 0.0508 0.062 57,F5 81 60-130 34.9,F2 30 2-Methylphenol (o-Cresol) 0.933 0.982 1.25 75 79 60-130 5.12 30 3 & 4-Methylphenol (m,p-Cresol) 1.09 1.12 1.25 87 89 60-130 2.34 30 Naphthalene 0.0448 0.0445 0.062 72 71 60-130 0.530 30
2-Nitroaniline 4.54 5.00 6.25 73 80 60-130 9.72 30
3-Nitroaniline 4.59 4.44 6.25 73 71 30-130 3.14 30
4-Nitroaniline 4.93 4.72 6.25 79 76 60-130 4.25 30
Nitrobenzene 0.914 0.976 1.25 73 78 60-130 6.59 30
2-Nitrophenol 5.18 5.32 6.25 83 85 60-130 2.61 30
4-Nitrophenol 5.92 5.55 6.25 95 89 60-130 6.48 30
N-Nitrosodimethylamine 3.75 3.63 6.25 60 58,F5 60-130 3.16 30 N-Nitrosodiphenylamine 0.908 0.894 1.25 73 72 60-130 1.52 30 N-Nitrosodi-n-propylamine 0.834 0.831 1.25 67 66 60-130 0.381 30 Pentachlorophenol 0.230 0.226 0.31 74 72 40-130 1.87 30 Phenanthrene 0.0408 0.0398 0.062 65 64 60-130 2.46 30
Phenol 0.199 0.205 0.25 80 82 60-130 2.79 30
Pyrene 0.0444 0.0430 0.062 71 69 60-130 3.15 30
Pyridine 0.610 0.593 1.25 49 47 30-130 2.72 30
1,2,4-Trichlorobenzene 0.846 0.896 1.25 68 72 60-130 5.70 30 2,4,5-Trichlorophenol 0.0458 0.0552 0.062 73 88 60-130 18.7 30 2,4,6-Trichlorophenol 0.0440 0.0499 0.062 70 80 60-130 12.6 30 (Cont.)

Page 93 of 105 ends

Quality Control Report
McCampbell Analytical, Inc. 1534 Willow Pass Road, Pittsburg, CA 94565-1701 Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 http://www.mccampbell.com / E-mail: [email protected] "When Quality Counts" Client: Langan
Project: 770675102; 466 Forbes Boulevard
Date Analyzed: 12/21/2021 - 12/22/2021
Date Prepared: 12/20/2021
WorkOrder: 2112A92
BatchID: 235941
Analytical Method: SW8270C
Unit: mg/Kg
Sample ID: MB/LCS/LCSD-235941
Instrument: GC47, GC48
Matrix: Soil
Extraction Method: SW3550B/3640A
QC Summary Report for SW8270C (Low Level) w/ GPC
Analyte LCS
Result
LCSD
Result
SPK
Val
LCS
%REC
LCSD
%REC

LCS/LCSD
Limits

RPD RPD
Limit
Surrogate Recovery
2-Fluorophenol 1.01 1.04 1.25 81 83 60-130 3.29 30
Phenol-d5 1.00 1.07 1.25 80 86 60-130 6.67 30
Nitrobenzene-d5 0.862 0.934 1.25 69 75 60-130 8.00 30
2-Fluorobiphenyl 0.815 1.04 1.25 65 83 60-130 24.2 30
2,4,6-Tribromophenol 0.870 0.870 1.25 70 70 50-130 0.0259 30 4-Terphenyl-d14 0.984 0.977 1.25 79 78 50-130 0.775 30

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South San Francisco City CouncilDecember 13, 2023

South San Francisco City Council
December 13, 2023