Agenda packet — Rocklin City Council, April 8, 2025 (part 3 of 4)

September 30, 2024
Pacific Street Property Brusca File No. 142-007

SITE DESCRIPTION AND BACKGROUND

The approximate three-acre subject property is situated directly easterly of Pacific Street and about 250 feet southerly of Rocklin Road in Rocklin, Placer County, California. The property is addressed as 5255 Pacific Street and is identified by the Placer County Assessor’s Office as parcel number (APN) 010-170-026. The site currently is generally vacant/undeveloped and unused. A Vicinity Map showing the location of the property is presented as Plate 1, and a Site Map is presented as Plate 2.

In 2017, Youngdahl Consulting Group, LLC prepared a Phase I Environmental Site Assessment of the subject property.
1 The 2017 Phase I report indicated that the subject property historically was part of a former granite quarry within the Rocklin Quarry district, and that the site previously supported several structures associated with mining operations. At the time of the 2017 Phase I study, nearly all of the former structures reportedly had been removed; however, it is indicated that visible signs of previous onsite structures were observed. The 2017 report stated that stained soils were observed in the area of a former onsite blacksmith shop and that evidence of slag was noted in the area of a former “Monument Shed” and “Cutting Shed”. The report concluded that the potential exists that soils in those areas had been impacted with heavy metals from past onsite activities . The 2017 Phase I report included a recommendation to conduct soil sampling at the specific identified locations of concern for metals analyses. The areas of concern identified in the 2017 Phase I report are shown on Plates 2 and 3.

In January 2024, our firm conducted soil sampling in the areas of concern identified in the 2017 Phase I report.
2 Our scope of work included observation of the concern areas, collection of surface soil samples from those areas for laboratory testing for metals (CAM 17), and evaluation of the results. The January 2024 soil sampling locations (identified as S1 through S10) are shown on Plates 3 and 4, and the soil analytical results are summarized on Table I. The January 2024 sampling/testing identified elevated concentrations of metals (including lead, antimony, cobalt and copper) with respect to Environmental Screening Levels (ESLs) published by the San Francisco Bay Regional Water Quality Control Board (SFBRWQCB) . 3 Additionally, the
detected concentration of lead in one sample and the concentration of copper in another sample also exceed California Title 22 Total Threshold Limit Concentration (TTLC) hazardous waste levels. Based on these findings, we concluded that further site characterization of the extent of metals impacted soils and remedial action are warranted.

1 Youngdahl Consulting Group, Inc.; “Phase I Environmental Site Assessment, Pacific Street (5255), Placer County APN 010-170-026-00, Rocklin, California”; October 20, 2017. 2 Brusca Associates, Inc.; “Phase II Environmental Site Assessment, Pacific Street Property, APN 010-170-026, 5255 Pacific Street, Rocklin, Placer County, California”; February 5, 2024. 3 San Francisco Bay Regional Water Quality Control Board; “Environmental Screening Levels”; July 2019. 387

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PURPOSE AND SCOPE OF WORK

The purpose of this additional sampling investigation has been to evaluate/characterize the lateral and vertical extent s of metals impacted soils at the site and to develop recommendations for remedial removal of the impacted soils. Our scope of work included multiple episodes of step- out soil sampling from the previously identified locations of surface soil impacts, collection of a number of soil samples across the entire property generally on a grid pattern, and excavation of test pits at selected locations for deeper soil sampling. The soil sampling was performed in accord with standard environmental protocol and was overseen by a Professional Geologist from our office. All laboratory testing was performed by a State -certified laboratory. Based on the results, we have developed recommended excavation areas and procedures for r emedial excavation, stockpiling, and off-haul of impacted materials.

ADDITIONAL SITE CHARACTERIZATION

Soil Sampling and Test Pits

Between May and July 2024, we performed multiple episodes of step -out surface soil sampling generally surrounding the two previously identified concern areas at the site. Additionally, we collected a number of surface soil samples generally on a grid pattern across the site to evaluate whether sizable areas of surface soil metals impact exist on other portions of the property . The additional surface soil sampling locations (identified as S11 through S78) are shown on Plate 4.

The surface soil sample collected at one of the grid sampling locations (S39) generally situated to the southwest of the previously identified two concern areas contained an elevated concentration of lead. As shown on Plate 4, we subsequently collected a number of step-out samples surrounding that location to characterize the extent of impact in that area.

At each surface soil sampling location, a soil sample was collected from the surface to an approximate depth of six inches. The surface soil samples were immediately transferred to laboratory-provided four-ounce glass jars.

In early September 202 4, we directed the performance of seven test pits at locations where surface soil sampling identified elevated concentrations of metals (specifically at locations S3, S5, S14, S44, S59, S68, S70). Prior to excavation of the test pits, we marked the test pit locations and contacted Underground Service Alert to clear the locations of underground utilities. The test pits were performed with a small excavator. Each of the test pits extended to a depth of three feet, except for the test pit at location S5, which extended to a depth of four feet.

The conditions encountered in the test pits are depicted on the attached Plates 5 through 11.

Each of the test pits encountered fill materials at the surface. Within the test pits at locations S3, S14, S44, and S59 (generally within the central and southwesterly site areas ) the fill materials were mostly comprised of a mixture of sandy soils, granodiorite rock fragments, and varying amounts of apparent ash/burn debris; at those locations the fill materials extended to depths ranging from about eight inches to about 1.5 feet. Below the shallow fill materials at locations S3, S14, S44, and S59, the test pits encountered native soils mostly consisting of silty sands. At 388

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locations S44 and S59, the test pits engaged highly weathered granodiorite rock below the silty sands at depths of about 1.5 feet and 2.5 feet, respectively.

Deeper fill materials were encountered in the test pits advanced within the northeasterly portion of the site (locations S5, S68, and S70). At location S5, the fill materials included a substantial amount of slag materials, as well as assorted debris/rubbish, including metal, plastic, and wood materials. The base of the test pit at location S5 at a depth of four feet exposed abundant slag materials, and the total depth of slag and fill materials at this location was not defined.

Additionally, a sizable subsurface concrete element (possible remnant building foundation) was exposed at a depth of about one foot in the northerly sidewall of the test pit at location S5.

The test pit at location S68 encountered fill materials (including some wood debris) extending to a depth of about 2.5 feet, below which native silty sand was encountered.

Within the test pit at location S70, fill materials uniformly consisting of granodiorite rock fragments (up to two feet in dimension) mixed with minor amounts of sand and gravel were encountered extending to the maximum depth of the test pit (three feet). The total depth of fill material at this location was not defined.

As shown on the attached test pit logs, subsurface soil samples were collected from each of the test pits at one-foot intervals. The soil samples were immediately transferred to laboratory - provided four-ounce glass jars.

Laboratory Testing

The collected surface soil samples and the soil samples from the test pits were submitted with chain-of-custody documentation to a State -certified analytical laboratory (Sunstar Laboratories, Inc.; ELAP No. 2250) for analysis. Each sample was analyzed for the metals that were previously identified as elevated at the site during the referenced January 2024 Phase II investigation (specifically lead, antimony, cobalt and copper) by EPA Method 6010B. A few of the deeper soil samples from the test pits were held at the laboratory without testing pending the results of the shallower soil samples. The soil analytical results are summarized on Table I, and the laboratory reports and chain-of-custody documentation are attached . Quality control/quality assurance information is included in the laboratory reports.

Results/Nature and Extent of Metals Impacts

As a part of our evaluation, we have compared the soil laboratory data to Environmental Screening Levels (ESLs) published by the San Francisco Bay Regional Water Quality Control Board (SFBRWQCB) .
4 The ESL values for both residential and commercial/industrial exposure scenarios are presented on the attached Table I along with the analytical data from the site. W e have primarily considered the residential ESL values as we understand that contemplated redevelopment of the subject property includes residential usage. Additionally, we have compared the soils metals results to California Title 22 Total Threshold Limit Concentration (TTLC) hazardous waste levels; those values also are presented on Table I.

4 San Francisco Bay Regional Water Quality Control Board; “Environmental Screening Levels”; July 2019. 389

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As shown on Table I, a substantial number of the surface and subsurface soil samples collected from the site contain one or more of the tested metals at concentrations above residential ESL values. Of the metals tested, elevated concentrations of lead appear to be more prevalent than the other metals (antimony, cobalt, and copper). None of the additional soil samples collected from the site (i.e. between May and September 2024) contained metals at concentrations exceeding TTLC hazardous waste levels, except for the surface soil sample collected at location S14 (this sample contained copper and lead at concentrations exceeding the TTLC hazardous waste level).

As shown on Plate 12, three areas of surface soil metals impacts have been identified at the site; these include the two areas initially identified by the referenced January 2024 Phase II sampling (herein referred to as the central and northeasterly impacted areas), and the area in the vicinity of location S39 identified by the grid sampling across the site (herein referred to as the southwesterly impacted area).

As shown on Table I and Plates 5 through 11, the subsurface soil samples collected from test pits within the central and southwesterly impacted areas (i.e. within the test pits at locations S3, S14, S44, and S59) did not contain elevated concentrations of the tested metals, except for the one - foot-deep soil sample collected at location S14. The sample collected at a depth of two feet at location S14 did not contain elevated concentrations of metals. Give n the available data, it would appear that soils containing elevated concentrations of metals within the central and southwesterly impacted areas generally do not extend deeper than about one to 1.5 feet.

Subsurface conditions within the northeasterly impacted area at the site are more variable and uncertain. As shown on Table I and Plate 6, all of the subsurface soil samples collected from the test pit at location S5 (depths of one, two, three, and four feet) contained elevated concentrations of metals with respect to residential ESL values. The total depth of fill materials and the vertical extent of metals impacts in this area are undetermined.

As shown on Table I and Plate 10, soils containing elevated concentrations of metals at location S68 within the northeasterly impacted area extend to a depth of at least two feet; however, the sample collected at a depth of three feet at this location (within native soils) did not contain elevated concentrations of metals. As shown on Table I and Plate 11, the subsurface soil samples at location S70 (depths of one, two, and three feet) did not contain elevated concentrations of metals.

As summarized above, the identified depths of impacted soils within the northeasterly impacted area are highly variable primarily due to the nature and extent of fill materials in that area. The total depth of fill materials and metals impacted soils within portions of the northeasterly area (including the vicinity of S5) are yet undetermined and should be delineated during the proposed remedial excavation work at the site. Alternatively, if desired, further site characterization, including additional test pit excavation and subsurface soil sampl ing could be performed in the northeasterly impacted area prior to remedial work to better define the anticipated extents of excavation in that area. If additional site characterization is undertaken, the remedial removal plan presented below should be revised/refined based on the additional data.

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REMEDIAL REMOVAL PLAN

Remedial Objective and Approach

As summarized earlier in this report, areas have been identified at the subject property where soils contain certain metals (antimony, cobalt, copper, and/or lead) at concentrations above residential ESL values. Given that redevelopment of the property is planned (including residential usage), excavation/removal of all site soils containing metals at concentrations above residential ESL values is recommended. The objective of the recommended remedial soil removal is to establish site conditions that are protective of construction workers and future occupants of the property. The excavated impacted soils should be hauled from the property for proper landfill disposal.

The recommended soil removal areas presented herein are based in part on the assumption that future use of the property will include residential usage. If the planned future usage of the property changes such that residential usage or other sensitive uses are not included, it may be warranted to revise this plan to potentially reduce the extent of remedial excavation.

General/Planned Excavation Areas

Remedial soil excavation is recommended for the three impacted site areas shown on Plate 12; those areas generally encompass locations where metals have been identified in surface and/or subsurface soils at concentrations exceeding residential ESL values. The anticipated minimum depths of excavation are shown on Plate 13. Following excavation, soil samples shall be collected from the lateral and vertical limits of the excavated areas for confirmation testing. In the event that confirmation soil samples contain metals at concentrations above residential ESL values, further excavation shall be implemented. Excavated soils shall be removed from the property for proper landfill disposal. The remedial work shall be performed by a licensed hazardous materials contractor and in accordance with all applicable laws and regulations.

Applicable laws and regulations relevant to the excavation and disposal of contaminated soils include, but are not limited to: 27 California Code of Regulations (CCR) 20200 (a) and (c); 27 CCR 20210; 27 CCR 20220 (b); and, 23 CCR 2520 and 2521. The remedial soil excavation and related confirmation soil sampling at the site shall be overseen by a qualified environmental professional(s) under the direction of a Professional Geologist.

We note that some trees exist within and near the planned remedial excavations. Tree care considerations such as root protection measures are beyond the scope of this plan. Appropriate City representatives should be contacted to determine whether an arborist should be consulted regarding the planned work. For the purposes of this Remedial Removal Plan, we have assumed that trees within the remedial areas would be removed prior to or in conjunction with the remedial work.

Permitting

Prior to the remedial soil excavation work, the property owner or remediation contractor shall obtain any required permits for the work, including a grading permit if necessary. Additionally, 391

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if required, the property owner or contractor shall obtain and implement a Stormwater Pollution Prevention Plan specific to the planned work and implement the provisions of that plan during the remedial activities.

The subject property is within the jurisdiction of the Placer County Air Pollution Control District (PCAPCD). The remediation contractor shall determine whether a Dust Control Plan is required for the planned work and shall process a Dust Control Plan with the PCAPCD if necessary.

Utility Clearance and Protection

The remediation contractor shall contact Underground Service Alert prior to planned soil excavation work to clear the areas of underground utilities. Any active utilities within the planned excavation areas shall be protected during the work. A power pole is situated near the northerly margin of the northeasterly impacted area; this power pole may need to be protected or relocated during the planned work.

Site Access, Staging, and Site Security

Prior to the remedial work, appropriate site access routes for equipment, trucks, etc. shall be determined. Additionally, onsite areas for the temporary storage/stockpiling of excavated materials shall be identified. Fencing, barricades or other measures shall be used to prevent the general public from entering work areas containing open excavations or where impacted soils are exposed and/or stored.

Excavation Areas Layout

Prior to the planned excavation work, the limits of remedial excavation areas shall be marked to match the areas shown on Plate 12. The layout of the marked areas shall be confirmed by the qualified environmental professional overseeing the work.

Excavation and Stockpiling

Remedial excavation shall be performed within the three impacted areas shown on Plate 12 with suitable earthwork equipment. Within the central and southwesterly impacted areas, the excavations shall be advanced to depths sufficient to remove the shallow fill materials in those areas (as determined by the environmental professional overseeing the work) ; as shown on Plate 13, those depths are anticipated to be on the order of one to 1.5 feet.

As shown on Plate 13, the anticipated minimum depths of excavation within the northeasterly impacted area are more variable. The depths of excavation within the northeasterly impacted area shall be determined by the environmental professional overseeing the work and shall be based to some degree on the nature of the materials exposed during remedial excavation. Materials/soil including ash, burn debris, and/ or slag shall be assumed to be impacted unless additional testing proves otherwise. As shown on Plate 13, the anticipated minimum depth of excavation within the east portion of the northeasterly impacted area is on the order of three feet, and within the west portion of the northeasterly impacted area on the order of one foot. Within the central portion of the northeasterly impacted area, the anticipated minimum depth of excavation is four feet; 392

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depending on conditions encountered during remedial excavation, the actual excavation depth in that area may need to be much deeper.

Considering the materials encountered in the test pits advanced at the site (discussed earlier in this report and shown on Plates 5 through 11), it should be anticipated that the materials remedially excavated from the site will include soils, rock fragments (some of which may be sizable) , ash/burn debris, rubbish, plastic materials, wood materials, metal objects, and concrete rubble and/or concrete elements (such as potential remnant foundations). It is possible that other types of materials could be encountered in uncharacterized fills at the site. We also note that a mound of apparent slag material (about 12 feet in diameter and up to about four feet high) is situated within the northeasterly impacted area; this material should be removed for proper offsite disposal in conjunction with the remedial soil removal work.

The excavated materials shall be placed within the designated onsite stockpile area(s). Materials shall be transported from the removal area s to the designated stockpile area (s) in a manner that prevents spillage onto site surfaces. The stockpiled materials shall be covered with plastic sheeting (6 mill minimum) and t he plastic sheeting shall be secured as necessary to prevent wind disturbance. Appropriate measures sh all be implemented to prevent storm water contact and erosion of stockpiled materials; such measures could include the berming of stockpiled areas if warranted by site conditions . It is recommended that the excavation work at the site be planned for a time when significant rainfall is not expected.

Dust Control

Dust control measures shall be implemented during excavation to limit or prevent airborne particles during the remedial work . An effective dust control measure is the wetting of exposed soils to limit airborne soil particles. Wetting can be accomplished via liberal sprinkling of exposed soils with a hose, water truck, or other suitable means. The actual methods used for dust control should depend on the nature of the soil disturbance activity, the size of the area(s) disturbed, soil moisture content, and weather conditions. As a general rule, measures shall be implemented so that no visible dust is generated during site activities. Additionally, all dust control work should conform to the Dust Control Plan, if it is determined that a Dust Control Plan is necessary per PCAPCD requirements.

As a further protective measure, the property owner and/or contractor(s) may elect to develop and implement a dust monitoring program (including use of dust monitors) to evaluate whether unacceptable levels of fugitive airborne dust occur within or at the boundaries of the work area during the work. Our firm could assist in development of a dust monitoring plan upon request.

Storm Water Control

Storm water control measures shall be implemented as necessary to prevent any surface water or storm water that contacts exposed impacted soils from discharging from the work site or from entering storm drain or sewer systems. It is recommended that the excavation work at the site be planned for a time when significant rainfall is not expected.

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Confirmation Soil Sampling/Analysis

Following the remedial excavation, soil samples shall be collected from the limits of the excavation areas to verify that soils at the limits of the excavation s do not contain the metals of concern (antimony, cobalt, copper, and lead) at concentrations above the clean -up levels established herein (i.e. residential ESLs). Confirmation soil samples shall be collected from the lateral margins of each excavation area at a maximum of 25 lineal foot intervals, and at least one confirmation soil sample shall be collected from the base of each excavation area for each 1,500 square feet of excavation area. All sampling and sample handling shall be performed by a qualified environmental professional in accord with standard environmental protocols and shall be thoroughly documented; scaled site map s showing the numbering of the confirmation sampling locations shall be prepared. The soil samples shall be retrieved in laboratory-provided glass jars or stainless -steel sleeves capped with Teflon tape and plastic end caps. The samples shall be transported to a State-certified analytical laboratory under chain-of-custody for analysis.

The confirmation soil samples from the limits of the remedial excavation areas shall be analyzed for lead, antimony, cobalt and copper by EPA Method 6010B. The results of the analytical laboratory testing of the confirmation soil samples shall be reviewed and compared to residential ESL values. In the event that any of the confirmation soil samples contain lead, antimony, cobalt or copper in excess of these levels, further excavation shall ensue in the area(s) of any such samples and thereafter resampling/retesting shall be performed in any such area(s) as described above for confirmation purposes.

Stockpile Sampling, Landfill Acceptance, and Off-Haul

Following remedial excavation and stockpiling, the stockpiled materials shall be sampled and tested to determine appropriate disposal. One four-part composite sample shall be collected from each 250 -cubic yard section of the stockpiles. Prior to the sampling, the stockpiles shall be accurately measured, and 250 -cubic yard sections of the stockpiles shall be identified and marked. All sampling and sample handling shall be performed in accord with standard environmental protocol and shall be thoroughly documented. Samples of the stockpiled soils shall be retrieved in laboratory -provided glass jars or stainless -steel sleeves capped with Teflon tape and plastic end caps. The samples shall be transported to a State- certified analytical laboratory under chain-of-custody for analysis. The samples of the stockpiled materials shall be analyzed for the following:

• Lead, antimony, cobalt and copper by EPA Method 6010B

• Soluble Threshold Limit Concentration (STLC) to be analyzed for any metals with TTLC exceeding 10 times the STLC

• Toxicity Characteristic Leaching Procedure (TCLP) to be analyzed for any metals exceeding STLC hazardous waste criteria per Code of Regulations Title 22

The permitted landfill facility or facilities selected for eventual disposal of the stockpiled materials may require additional analyses for acceptance purposes. The contractor shall arrange for 394

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acceptance of the excavated/stockpiled materials at an appropriate permitted landfill facility or facilities. Following acceptance, the stockpiled materials shall be completely removed from the property and properly hauled to the accepting landfill facility or facilities.

The stockpiled materials shall be loaded into transport vehicles in a manner that prevents the spilling or tracking of materials. Any m aterial that spills or falls onto the ground sh all be immediately placed into the truck or in its original stockpile, and the affected area sh all be immediately cleaned up. Transport and disposal sh all be performed by a properly licensed contractor at an appropriate pre -approved facility or facilities in accordance wi th all applicable environmental laws and regulations. Transport manifests and disposal documentation shall be maintained and copies of such documentation shall be provided to the property owner.

Excavation Backfilling

Details regarding backfilling of the remedial excavations should be determined by the property owner and may depend to some degree on the grading details of the envisioned future development project (and we note that portions of the excavation areas are anticipated to be only about one-foot- deep and may not necessitate backfilling). If the deeper excavation areas are not immediately backfilled, those areas should be fenced or otherwise secured for safety reasons. Any imported backfill materials to be used within the excavated areas shall be evaluated for environmental quality prior to placement. The details of the imported backfill materials evaluation program would depend on the quantity and source of the backfill materials and should be determined by the environmental professional overseeing the work. Geotechnical engineering aspects of backfill type and placement procedures are beyond the scope of this plan.

Decontamination

All equipment that has come in contact with impacted site materials shall be decontaminated prior to demobilization from the site. Decontamination methods should depend on the project specifics and equipment. Accumulations of soils on equipment shall be removed by scraping with a shovel or similar tool and, where appropriate, by brushing with stiff bristle brushes and brooms. Any rinse water generated during decontamination sh all be collected and disposed at an appropriate disposal facility in accordance with all applicable environmental laws.

Personal Protection/Safety Procedures

The contractor(s) shall be responsible for the health and safety of their employees during the course of construction activities. Additionally, contractors performing work that will disturb contaminated materials shall be required to develop their own Health and Safety Plan specific to their work; elements of the Health and Safety Plan shall include worker environmental safety measures for activities that include contact with site soils. It will also be the contractor’s responsibility to implement the environmental and physical safety measures to protect on- site workers during the work, and to ensure that workers have appropriate hazardous materials safety training to conduct the work.

Due to the known soil contamination at the site, contractors performing earthwork activities, shall be responsible for operating in accordance with the most current requirements of Title 8, 395

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California Code of Regulations, Section 5192 (8 CCR 5192) and Title 29, Code of Federal Regulations, Section 1910.120 (29 CFR 1910.120), Standards for Hazardous Waste Operations and Emergency Response (HAZWOPER). On-site personnel will be responsible for operating in accordance with all applicable regulations of the Occupational Safety and Health Administration (OSHA) outlined in 8 CCR General Industry and Construction Safety Orders and 29 CFR 1910 and 29 CFR 1926, Construction Industry Standards, as well as other applicable federal, state and local laws and regulations. All personnel shall operate in compliance with all California OSHA requirements.

Personal protective equipment (PPE) is required at the site to protect personnel from potential exposure to contaminated soil and physical hazards. The level of PPE that will be required depends not only on existing site conditions and hazards but also on the specific task or operation to be performed. The minimum level of protection deemed appropriate for this Site is Level D; however, a contractor-specific Health and Safety Plan may determine that a higher level of PPE is necessary for their work. Level D PPE used at the site will consist of hard hat; reflective safety vest or shirt; protective footwear; safety glasses or goggles; hearing protection (when necessary), gloves, and long pants.

All personnel in contact with contaminated materials during the remedial soil removal work shall be instructed to wash their hands, face, neck, and arms at the end of the workday. No eating, drinking, smoking, or chewing of gum or tobacco shall be permitted in the work area.

Dust control measures shall be implemented to limit or prevent airborne particles during activities that involve soil disturbance. An effective dust control measure is the wetting of exposed materials to limit airborne soil particles. Wetting can be accomplished via liberal sprinkling of exposed materials with a hose , water truck, or other suitable means. The actual methods used for dust control will depend on the nature of the soil disturbance activity, the size of the area disturbed, soil moisture content, and weather conditions. As a general rule, measures shall be implemented so that no visible dust is generated during site activities.

As indicated earlier in this report, the property owner and/or contractor(s) may elect to develop and implement a dust monitoring program (including use of dust monitors) to evaluate whether unacceptable levels of fugitive airborne dust occur within or at the boundaries of the work area during the work.

Reporting

Following the remedial activities at the site, a summary report shall be prepared by the environmental professional overseeing the work and signed by a Professional Geologist. The summary report shall include: a description of the remedial work completed; d rawings showing the limits of remedial excav ation and clearance soil sampling locations; the results of the clearance soil and stockpile sampling/analytical testing; and, soil disposal manifests.

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SOIL MANAGEMENT PLAN

Given the history of the subject property and the somewhat variable conditions encountered at the site (including undocumented/uncharacterized fill materials), the potential exists that impacted materials may exist at the site outside of the areas identified herein. As such, we recommend developing and implementing a Soil Management Plan (SMP) that include s a description of procedures for monitoring soil and fill materials during any future onsite construction activities and for identifying any suspect materials of potential environmental concern, as well as procedures for segregation, stockpiling, testing, and disposal of any suspect materials of concern. Upon request, our firm could develop a SMP for the property.

CLOSING

If you have any questions or require additional information, please contact the undersigned at (916) 677-1470.

Sincerely,

BRUSCA ASSOCIATES, INC.

Joe Brusca
Principal Engineering Geologist
Certified Engineering Geologist No. 1948

Attachments: Plate 1, Vicinity Map
Plate 2, Site Map
Plate 3, Detail Map – Initial Sampling Locations
Plate 4, Additional Sampling Locations
Plate 5, Log of Test Pit at S3
Plate 6, Log of Test Pit at S5
Plate 7, Log of Test Pit at S14
Plate 8, Log of Test Pit at S44
Plate 9, Log of Test Pit at S59
Plate 10, Log of Test Pit at S68
Plate 11, Log of Test Pit at S70
Plate 12, Proposed Remedial Excavation Areas
Plate 13, Proposed Remedial Excavation Depths

Table I – Summary of Soil Analytical Data

Laboratory Reports and Chain-of-Custody Documentation
397
1860 Sierra Gardens Drive, # 332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com

VICINITY MAP
PLATE 1
NSOURCE: U.S.G.S. 7.5-minute Rocklin Quadrangle, California, 2018 Scale 1:24,000

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007

SUBJECT SITE
398

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California1860 Sierra Gardens Drive, # 332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com Brusca Project No. 142-007 PLATE 2

SITE MAP
N
0 100

APPROXIMATE SCALE IN FEET

APPROXIMATE BOUNDARY OF SUBJECT PROPERTY
All features and locations are approximate only

AREA OF DETAIL MAP SHOWING INITIAL SAMPLING LOCATIONS
(SEE PLATE 3)

APPROXIMATE AREA

OF SLAG IDENTIFIED
IN 2017 YOUNGDAHL

PHASE I ESA

APPROXIMATE

AREA OF STAINED

SOIL IDENTIFIED IN
2017 YOUNGDAHL

PHASE I ESA

PACIFIC STREET

ROCKLIN ROAD
399
5255 Pacific Street
Rocklin, California1860 Sierra Gardens Drive, # 332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com Brusca Project No. 142-007 PLATE 3

DETAIL MAP

INITIAL SAMPLING

LOCATIONS
N
0 30

APPROXIMATE SCALE IN FEET
INITIAL SOIL SAMPLE LOCATION, JANUARY 2024
All features and locations are approximate only

APPROXIMATE

AREA OF STAINED

SOIL IDENTIFIED IN
2017 YOUNGDAHL

PHASE I ESA

APPROXIMATE AREA

OF SLAG IDENTIFIED
IN 2017 YOUNGDAHL

PHASE I ESA
S6S5 S7
S8
S10
S4
S3
S2
S1
S9
S19

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
400
5255 Pacific Street
Rocklin, California1860 Sierra Gardens Drive, # 332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com Brusca Project No. 142-007 PLATE

ADDITIONAL

SAMPLING

LOCATIONS
N
0 100

APPROXIMATE SCALE IN FEET

APPROXIMATE BOUNDARY OF SUBJECT PROPERTY
All features and locations are approximate only
SURFACE SOIL SAMPLING LOCATIONS, JANUARY-JULY 2024
TEST PIT, SEPTEMBER 2024

PACIFIC STREET

ROCKLIN ROAD
4 S32
S29
S31
S34
S35
S75
S76
S33
S30
S77
S66S51
S67
S68
S52
S53
S37
S69
S54S36
S55 S23S24S25S26
S56
S5S27 S6 S7
S8
S9
S10
S71
S57
S70
S65
S64
S46S45
S63
S44
S19 S47
S20
S48
S21
S40
S49
S22
S74S73
S59
S72 S39
S58 S60
S62
S50
S61
S12S11
S18 S1 S14S4
S17
S3 S15
S16
S2
S38
S42
S43
S41
S78
S13
S28

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
401
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 5

LOG OF TEST PIT
AT S3
5 4
3 2
1 0

DEPTH (IN FEET)
LOG OF TEST PIT AT S3
EXCAVATED: 9/4/2024
SM

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: LIGHT AND DARK GREY ASH/BURN DEBRIS MIXED WITH BROWN SILTY SAND GREY GRANODIORITE ROCK FRAGMENTS; SOME ROOTS

ORANGE-BROWN SILTY SAND
HARD

SOIL SAMPLE (TYPICAL)
SM
S3-1
S3-2
S3-3
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
USCS
402
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 6

LOG OF TEST PIT
AT S5
LOG OF TEST PIT AT S5
EXCAVATED: 9/4/2024

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: MIXTURE OF DARK ORANGE-BROWN SLAG (RANGING FROM 1/8 “ GRANULAR MATERIAL TO LARGE BLOCKS UP TO 2’ DIMENSION),

LIGHT GREY SAND, BROWN SILTY SAND, GREY GRANODIORITE ROCK

FRAGMENTS, AND DEBRIS/RUBBISH (INCLUDING METAL FRAGMENTS, PLASTIC, WOOD, ETC.)

APPARENT CONCRETE FOUNDATION AT NORTH
MARGIN OF TEST PIT. SIGNIFICANT CAVING OF MATERIALS IN TEST PIT

SOLID DARK ORANGE-BROWN SLAG AT BASE OF TEST PIT
5 4
3 2
1 0

DEPTH (IN FEET)
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
S5-1
S5-2
S5-3
S5-4
USCS
403
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 7

LOG OF TEST PIT
AT S14
LOG OF TEST PIT AT S14
EXCAVATED: 9/4/2024
SM

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: LIGHT AND DARK GREY ASH/BURN DEBRIS MIXED WITH BROWN SILTY SAND AND GREY GRANODIORITE ROCK FRAGMENTS;

MINOR RUBBISH AND WOOD DEBRIS

ORANGE-BROWN SILTY SAND
HARD
SM
5 4
3 2
1 0

DEPTH (IN FEET)
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
S14-1
S14-2
S14-3
USCS
404
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 8

LOG OF TEST PIT
AT S44
LOG OF TEST PIT AT S44
EXCAVATED: 9/4/2024
SM

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: BROWN SILTY SAND MIXED WITH MINOR AMOUNTS OF GREY ASH/

BURN DEBRIS

ORANGE-BROWN SILTY SAND

LESS WEATHERED, HARD
SM

WITH GRANODIORITE ROCK FRAGMENTS

LIGHT GREY-BROWN, HIGHLY WEATHERED GRANODIORITE
5 4
3 2
1 0

DEPTH (IN FEET)
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
S44-1
S44-2
S44-3
USCS
405
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 9

LOG OF TEST PIT
AT S59
LOG OF TEST PIT AT S59
EXCAVATED: 9/4/2024
SM

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: DARK GREY ASH/BURN DEBRIS MIXED WITH MINOR AMOUNTS OF

BROWN SILTY SAND

ORANGE-BROWN SILTY SANDSM

LIGHT ORANGE-BROWN WEATHEARED GRANODIORITE
5 4
3 2
1 0

DEPTH (IN FEET)
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
S59-1
S59-2
S59-3
USCS
406
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 10

LOG OF TEST PIT
AT S68
LOG OF TEST PIT AT S68
EXCAVATED: 9/4/2024
SM

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: MIXTURE OF LIGHT-GREY SAND, BROWN SILTY SAND,

GREY GRANODIORITE ROCK FRAGMENTS, AND SOME WOOD
DEBRIS

ORANGE-BROWN SILTY SAND
SOME LARGER ROCK FRAGMENTS TO 18” DIMENSION

SOME CAVING OF MATERIALS IN TEST PIT
5 4
3 2
1 0

DEPTH (IN FEET)
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
S68-1
S68-2
S68-3
SM
USCS
407
1860 Sierra Gardens Drive, #332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com PLATE 11

LOG OF TEST PIT
AT S70
LOG OF TEST PIT AT S70
EXCAVATED: 9/4/2024

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY
5255 Pacific Street
Rocklin, California
Brusca Project No. 142-007
FILL: GREY GRANODIORITE ROCK FRAGMENTS (TO 2’ DIMENSION)

MIXED WITH MINOR AMOUNTS OF GREY SAND AND GRAVEL

MODERATE CAVING OF MATERIALS IN TEST PIT
UNIFORM TO TOTAL DEPTH OF 3’
5 4
3 2
1 0

DEPTH (IN FEET)
- SAMPLES CONTAINING METALS AT CONCENTRATIONS BELOW RESIDENTIAL

ESLS ARE SHOWN IN GREEN, AND SAMPLES CONTAINING METALS AT CONCENTRATIONS ABOVE RESIDENTIAL ESLS ARE SHOWN IN RED. SAMPLES

NOT TESTED ARE SHOWN AS OPEN BOXES
S70-1
S70-2
S70-3
USCS
408
5255 Pacific Street
Rocklin, California1860 Sierra Gardens Drive, # 332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com Brusca Project No. 142-007 PLATE

PROPOSED REMEDIAL

EXCAVATION AREAS
N
0 100
APPROXIMATE SCALE IN FEETAll features and locations are approximate only

PACIFIC STREET

ROCKLIN ROAD
12 S32
S29
S31
S34
S35
S75
S76
S33
S30
S77
S66S51
S67
S68
S52
S53
S37
S69
S54S36
S55 S23S24S25S26
S56
S5S27 S6 S7
S8
S9
S10S71
S57
S70
S65
S64
S46
S45
S63
S44
S19 S47
S20
S48
S21
S40
S49
S22S74S73
S59
S72 S39
S58 S60
S62
S50
S61
S12
S11
S18 S1 S14S4
S17
S3 S15
S16
S2
S38
S42
S43
S41
S78
S13
S28

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY

APPROXIMATE BOUNDARY OF SUBJECT PROPERTY

SOIL SAMPLING LOCATION WITH ELEVATED CONCENTRATION(S)

OF METALS

SOIL SAMPLING LOCATION NOT INDICATING ELEVATED

CONCENTRATION(S) OF METALS

PROPOSED REMEDIAL EXCAVATION AREAS

NORTHEASTERLY

IMPACTED AREA

CENTRAL

IMPACTED AREA

SOUTHWESTERLY

IMPACTED AREA
409
5255 Pacific Street
Rocklin, California1860 Sierra Gardens Drive, # 332
Roseville, CA 95661
ph (916) 677-1470 fax (916) 677-1471
BruscaAssociates.com Brusca Project No. 142-007 PLATE 13

PROPOSED REMEDIAL

EXCAVATION DEPTHS
N
0 100
APPROXIMATE SCALE IN FEETAll features and locations are approximate only

PACIFIC STREET

ROCKLIN ROAD

ADDITIONAL SITE INVESTIGATION AND

REMEDIAL SOIL REMOVAL PLAN

PACIFIC STREET PROPERTY

APPROXIMATE BOUNDARY OF SUBJECT PROPERTY

PROPOSED REMEDIAL EXCAVATION AREAS
1 1 1.5
3 1
>4

1.5 ESTIMATED REMEDIAL EXCAVATION DEPTH (FEET)
1 NORTHEASTERLY

IMPACTED AREA

CENTRAL

IMPACTED AREA

SOUTHWESTERLY

IMPACTED AREA
410
Date
Depth
(feet)
Antimony
Barium
Cadmium
Chromium
Cobalt
Copper
Lead
Molybdenum
Nickel
Vanadium
Zinc
Mercury
Other Metals
(see lab report)
S1 1/18/24 0 - 0.5 160 61 7.6 73 16 950 1,100 11 57 12 1,700 0.21 ND S2 1/18/24 0 - 0.5 120 42 5.2 7.6 4.4 91 900 ND 12 9.6 960 ND ND S3 1/18/24 0 - 0.5 250 59 4.5 370 6.1 360 750 24 33 9.9 520 0.38 ND S3-1 9/4/24 1 ND 4.3 20 37
S3-2 9/4/24 2 ND 4.4 6.0 5.5
S4 1/18/24 0 - 0.5 34 70 2.3 23 5.8 150 320 ND 23 12 410 0.70 ND S5 1/18/24 0 - 0.5 ND 14 7.8 340 34 3,500 36 95 510 31 ND ND ND S5-1 9/4/24 1 ND 41 2,130 47
S5-2 9/4/24 2 ND 93 351 36
S5-3 9/4/24 3 8.4 34 3,180 58
S5-4 9/4/24 4 23 34 2,520 64
S6 1/18/24 0 - 0.5 ND 68 4.9 230 26 2,400 29 71 300 37 43 ND ND S7 1/18/24 0 - 0.5 ND 56 ND 37 12 210 44 7.9 39 19 340 ND ND S8 1/18/24 0 - 0.5 ND 23 ND 4.9 2.8 25 29 ND 5.2 6.1 65 ND ND S9 1/18/24 0 - 0.5 ND 68 2.3 50 14 200 44 ND 35 34 230 ND ND S10 1/18/24 0 - 0.5 ND 51 ND 8.1 4.0 30 13 ND 7.0 11 100 ND ND S11 5/20/24 0 - 0.5 36 7.1 143 229
S12 5/20/24 0 - 0.5 4.1 5.8 82 128
S13 5/20/24 0 - 0.5 15 6.2 283 430
S14 5/20/24 0 - 0.5 390 13 24,700 2,350
S14-1 9/4/24 1 7.3 4.6 452 180
S14-2 9/4/24 2 ND 4.4 5.7 ND
S15 5/20/24 0 - 0.5 16 9.2 172 169
S16 5/20/24 0 - 0.5 ND 7.5 50 319
S17
5/20/24 0 - 0.5 ND 36 29 13
S18 5/20/24 0 - 0.5 ND 5.3 43 92
S19 5/20/24 0 - 0.5 7.9 3.6 84 93
S20 5/20/24 0 - 0.5 20 6.9 434 112
S21 5/20/24 0 - 0.5 ND 7.2 40 26
S22 5/20/24 0 - 0.5 ND 2.4 11 3.4
S23 5/20/24 0 - 0.5 6.5 27 536 95
S24 5/20/24 0 - 0.5 6.2 82 275 124
S25 5/20/24 0 - 0.5 ND 38 194 224
S26 5/20/24 0 - 0.5 10 55 180 171
S27 5/20/24 0 - 0.5 ND 32 1,740 24
S28 5/20/24 0 - 0.5 ND 104 227 50
S29 5/20/24 0 - 0.5 ND 26 ND 2.6 ND 6.4 3.8 ND ND ND 32 ND ND S30 5/20/24 0 - 0.5 ND 54 ND 5.6 13 18 8.4 ND 4.2 12 54 ND ND S31 5/20/24 0 - 0.5 ND 478 ND 18 3.8 59 36 ND 11 24 65 ND ND S32 5/20/24 0 - 0.5 ND 60 ND 7.9 2.8 12 14 ND 6.3 13 89 ND ND S33 5/20/24 0 - 0.5 ND 64 ND 13 4.6 371 72 ND 14 17 150 ND ND S34 5/20/24 0 - 0.5 ND 106 ND 16 4.0 27 17 ND 7.2 14 109 ND ND S35 5/20/24 0 - 0.5 ND 84 ND 10 13 23 40 ND 9.2 14 159 ND ND S36 5/20/24 0 - 0.5 ND 83 ND 13 8.1 64 59 ND 14 22 286 ND ND S37 5/20/24 0 - 0.5 ND 64 ND 15 4.8 59 36 ND 14 20 103 ND ND S38 5/20/24 0 - 0.5 ND 129 ND 8.0 3.4 14 15 ND 5.4 15 47 ND ND S39 5/20/24 0 - 0.5 ND 86 ND 9.4 3.2 19 208 ND 5.7 14 91 0.12 ND S40 5/20/24 0 - 0.5 ND 59 ND 13 3.9 44 21 ND 9.6 15 98 ND ND S41 5/20/24 0 - 0.5 ND 37 ND 4.2 2.7 8.6 7.3 ND 3.1 8.3 40 ND ND S42 5/20/24 0 - 0.5 ND 92 ND 9.8 3.8 13 7.8 ND 8.0 18 40 ND ND S43 5/20/24 0 - 0.5 ND 72 ND 8.6 3.7 16 17 ND 7.1 15 54 ND ND 11 15,000 78 120,000 23 3,100 80 390 820 390 23,000 13
160 220,000 1,100 1,800,000 350 47,000 320 5,800 11,000 5,800 350,000 190 500 10,000 100 2,500 8,000 2,500 1,000 3,500 2,000 2,400 5,000 20

1. All concentrations expressed in milligrams per kilogram (mg/kg)

2. ND = Not detected at a concentration above the laboratory reporting limit

3. SFRWQCB Environmental Screening Levels; shallow soil exposure; July 2019

4. California Title 22 Total Threshold Limit Concentration (TTLC) ESLs, Residential3
California Hazardous Waste Levels4

SCREENING LEVELS
ESLs, Commercial/industrial3

TABLE I

SUMMARY OF SOIL ANALYTICAL DATA

PACIFIC STREET PROPERTY
5255 Pacific Street, Rocklin, Placer County, California Sample ID
Brusca Project No. 142-007
METALS

Page 1 ends

411
Date
Depth
(feet)
Antimony
Barium
Cadmium
Chromium
Cobalt
Copper
Lead
Molybdenum
Nickel
Vanadium
Zinc
Mercury
Other Metals
(see lab report)
S44 6/18/24 0 - 0.5 ND 3.9 31 557
S44-1 9/4/24 1 ND 5.5 7.8 5.6
S44-2 9/4/24 2 ND 2.5 20 ND
S45 6/18/24 0 - 0.5 12 3.1 23 60.7
S46 6/18/24 0 - 0.5 4.2 4.2 35 66
S47 6/18/24 0 - 0.5 4.4 7.6 305 61
S48 6/18/24 0 - 0.5 ND 8.0 16 29
S49 6/18/24 0 - 0.5 ND 6.9 20 25
S50 6/18/24 0 - 0.5 ND 3.9 14 7.9
S51 6/18/24 0 - 0.5 15 6.0 40 157
S52 6/18/24 0 - 0.5 7.5 16 450 105
S53 6/18/24 0 - 0.5 10 14 356 197
S54 6/18/24 0 - 0.5 ND 11 532 66
S55 6/18/24 0 - 0.5 ND 4.7 42 51
S56 6/18/24 0 - 0.5 ND 34 128 56
S57 6/18/24 0 - 0.5 ND 179 98 26
S58 6/18/24 0 - 0.5 ND 11 30 10
S59 6/18/24 0 - 0.5 ND 6.2 33 423
S59-1 9/4/24 1 ND 2.1 5.4 4.7
S59-2 9/4/24 2 ND 2.5 ND ND
S60 6/18/24 0 - 0.5 ND 3.6 17 30
S61 6/18/24 0 - 0.5 ND 3.4 13 48
S62 7/15/24 0 - 0.5 ND 5.7 9.9 6.1
S63 7/15/24 0 - 0.5 ND 2.8 14 31
S64 7/15/24 0 - 0.5 ND 7.3 23 77
S65 7/15/24 0 - 0.5 ND 5.7 40 69
S66 7/15/24 0 - 0.5 ND 3.4 53 83
S67 7/15/24 0 - 0.5 6.5 6.5 87 180
S68 7/15/24 0 - 0.5 56 12 253 451
S68-1 9/4/24 1 18 2.6 106 328
S68-2 9/4/24 2 55 2.4 132 807
S68-3 9/4/24 3 ND ND 9.1 8.1
S69 7/15/24 0 - 0.5 5.0 7.2 77 74
S70 7/15/24 0 - 0.5 ND 18 110 161
S70-1 9/4/24 1 ND 2.7 16 24
S70-2 9/4/24 2 ND ND 5.8 3.7
S70-3 9/4/24 3 ND ND 6.2 6.0
S71 7/15/24 0 - 0.5 10 118 95 22
S72 7/15/24 0 - 0.5 ND 9.2 40 9.7
S73 7/15/24 0 - 0.5 ND 4.2 14 14
S74 7/15/24 0 - 0.5 ND ND ND 4.7
S75
7/29/24 0 - 0.5 ND 3.8 8.5 6.4
S76 7/29/24 0 - 0.5 ND 3.0 11 7.8
S77 7/29/24 0 - 0.5 ND 3.5 49 16
S78 7/29/24 0 - 0.5 ND 7.5 27 22
11 15,000 78 120,000 23 3,100 80 390 820 390 23,000 13
160 220,000 1,100 1,800,000 350 47,000 320 5,800 11,000 5,800 350,000 190 500 10,000 100 2,500 8,000 2,500 1,000 3,500 2,000 2,400 5,000 20

1. All concentrations expressed in milligrams per kilogram (mg/kg)

2. ND = Not detected at a concentration above the laboratory reporting limit

3. SFRWQCB Environmental Screening Levels; shallow soil exposure; July 2019

4. California Title 22 Total Threshold Limit Concentration (TTLC)

5. Concentrations in red exceed the residential ESL value and/or the cited hazardous waste level California Hazardous Waste Levels4

TABLE I

SUMMARY OF SOIL ANALYTICAL DATA

PACIFIC STREET PROPERTY
5255 Pacific Street, Rocklin, Placer County, California Brusca Project No. 142-007
Sample ID
METALS

SCREENING LEVELS
ESLs, Residential3
ESLs, Commercial/industrial3

Page 2 ends

412
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Brusca Associates Inc.

RE: Pacific Street Property
Roseville, CA 95661
PO Box 332
Joe Brusca
Joann Marroquin
Director of Operations
Enclosed are the results of analyses for samples received by the laboratory on 05/22/24 09:30. If you have any questions concerning this report, please feel free to contact me.

Sincerely,
30 May 2024

Page 1 of 62413 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

ANALYTICAL REPORT FOR SAMPLES
Date Received
S1
1 T242134-01 Soil 05/20/24 00:00 05/22/24 09:30
S12 T242134-02 Soil 05/20/24 00:00 05/22/24 09:30
S13 T242134-03 Soil 05/20/24 00:00 05/22/24 09:30
S14 T242134-04 Soil 05/20/24 00:00 05/22/24 09:30
S15 T242134-05 Soil 05/20/24 00:00 05/22/24 09:30
S16 T242134-06 Soil 05/20/24 00:00 05/22/24 09:30
S17 T242134-07 Soil 05/20/24 00:00 05/22/24 09:30
S18 T242134-08 Soil 05/20/24 00:00 05/22/24 09:30
S19 T242134-09 Soil 05/20/24 00:00 05/22/24 09:30
S20 T242134-10 Soil 05/20/24 00:00 05/22/24 09:30
S21 T242134-1
1 Soil 05/20/24 00:00 05/22/24 09:30
S22 T242134-12 Soil 05/20/24 00:00 05/22/24 09:30
S23 T242134-13 Soil 05/20/24 00:00 05/22/24 09:30
S24 T242134-14 Soil 05/20/24 00:00 05/22/24 09:30
S25 T242134-15 Soil 05/20/24 00:00 05/22/24 09:30
S26 T242134-16 Soil 05/20/24 00:00 05/22/24 09:30
S27 T242134-17 Soil 05/20/24 00:00 05/22/24 09:30
S28 T242134-18 Soil 05/20/24 00:00 05/22/24 09:30
S29 T242134-19 Soil 05/20/24 00:00 05/22/24 09:30
S30 T242134-20 Soil 05/20/24 00:00 05/22/24 09:30
S31 T242134-21 Soil 05/20/24 00:00 05/22/24 09:30
S32 T242134-22 Soil 05/20/24 00:00 05/22/24 09:30
S33 T242134-23 Soil 05/20/24 00:00 05/22/24 09:30
S34 T242134-24 Soil 05/20/24 00:00 05/22/24 09:30
S35 T242134-25 Soil 05/20/24 00:00 05/22/24 09:30
S36 T242134-26 Soil 05/20/24 00:00 05/22/24 09:30
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

ANALYTICAL REPORT FOR SAMPLES
Date Received
S37 T242134-27 Soil 05/20/24 00:00 05/22/24 09:30
S38 T242134-28 Soil 05/20/24 00:00 05/22/24 09:30
S39 T242134-29 Soil 05/20/24 00:00 05/22/24 09:30
S40 T242134-30 Soil 05/20/24 00:00 05/22/24 09:30
S41 T242134-31 Soil 05/20/24 00:00 05/22/24 09:30
S42 T242134-32 Soil 05/20/24 00:00 05/22/24 09:30
S43 T242134-33 Soil 05/20/24 00:00 05/22/24 09:30
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 2 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax

DETECTIONS SUMMAR Y
Laboratory ID:

Analyte Result Limit Units Method
T242134-01S11
Notes
Reporting
Sample ID:

Antimony 35.5 4.00 mg/kg EPA 6010b
Cobalt 7.08 2.00 mg/kg EPA 6010b
Copper 143 5.00 mg/kg EPA 6010b
Lead 229 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-02S12
Notes
Reporting
Sample ID:

Antimony 4.10 4.00 mg/kg EPA 6010b
Cobalt 5.78 2.00 mg/kg EPA 6010b
Copper 82.3 5.00 mg/kg EPA 6010b
Lead 128 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-03S13
Notes
Reporting
Sample ID:

Antimony 15.0 4.00 mg/kg EPA 6010b
Cobalt 6.20 2.00 mg/kg EPA 6010b
Copper 283 5.00 mg/kg EPA 6010b
Lead 430 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-04S14
Notes
Reporting
Sample ID:

Antimony 390 4.00 mg/kg EPA 6010b
Cobalt 12.8 2.00 mg/kg EPA 6010b
Copper 24700 20.0 mg/kg EPA 6010b
Lead 2350 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 3 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-05S15
Notes
Reporting
Sample ID:

Antimony 16.2 4.00 mg/kg EPA 6010b
Cobalt 9.21 2.00 mg/kg EPA 6010b
Copper 172 5.00 mg/kg EPA 6010b
Lead 169 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-06S16
Notes
Reporting
Sample ID:

Cobalt 7.49 2.00 mg/kg EPA 6010b
Copper 50.2 5.00 mg/kg EPA 6010b
Lead 319 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-07S17
Notes
Reporting
Sample ID:

Cobalt 36.3 2.00 mg/kg EPA 6010b
Copper 28.7 5.00 mg/kg EPA 6010b
Lead 13.4 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-08S18
Notes
Reporting
Sample ID:

Cobalt 5.33 2.00 mg/kg EPA 6010b
Copper 42.5 5.00 mg/kg EPA 6010b
Lead 92.0 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-09S19
Notes
Reporting
Sample ID:

Antimony 7.87 4.00 mg/kg EPA 6010b
Cobalt 3.58 2.00 mg/kg EPA 6010b
Copper 84.2 5.00 mg/kg EPA 6010b
Lead 92.5 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 4 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-10S20
Notes
Reporting
Sample ID:

Antimony 20.1 4.00 mg/kg EPA 6010b
Cobalt 6.85 2.00 mg/kg EPA 6010b
Copper 434 5.00 mg/kg EPA 6010b
Lead 1
12 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-11S21
Notes
Reporting
Sample ID:

Cobalt 7.21 2.00 mg/kg EPA 6010b
Copper 40.3 5.00 mg/kg EPA 6010b
Lead 26.3 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-12S22
Notes
Reporting
Sample ID:

Cobalt 2.39 2.00 mg/kg EPA 6010b
Copper 11.1 5.00 mg/kg EPA 6010b
Lead 3.38 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-13S23
Notes
Reporting
Sample ID:

Antimony 6.53 4.00 mg/kg EPA 6010b
Cobalt 26.5 2.00 mg/kg EPA 6010b
Copper 536 5.00 mg/kg EPA 6010b
Lead 95.0 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-14S24
Notes
Reporting
Sample ID:

Antimony 6.21 4.00 mg/kg EPA 6010b
Cobalt 81.6 2.00 mg/kg EPA 6010b
Copper 275 5.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 5 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-14S24
Notes
Reporting
Sample ID:

Lead 124 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-15S25
Notes
Reporting
Sample ID:

Cobalt 37.9 2.00 mg/kg EPA 6010b
Copper 194 5.00 mg/kg EPA 6010b
Lead 224 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-16S26
Notes
Reporting
Sample ID:

Antimony 10.0 4.00 mg/kg EPA 6010b
Cobalt 55.3 2.00 mg/kg EPA 6010b
Copper 180 5.00 mg/kg EPA 6010b
Lead 171 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-17S27
Notes
Reporting
Sample ID:

Cobalt 32.1 2.00 mg/kg EPA 6010b
Copper 1740 5.00 mg/kg EPA 6010b
Lead 23.6 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-18S28
Notes
Reporting
Sample ID:

Cobalt 104 2.00 mg/kg EPA 6010b
Copper 227 5.00 mg/kg EPA 6010b
Lead 50.0 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 6 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-19S29
Notes
Reporting
Sample ID:

Barium 25.8 5.00 mg/kg EPA 6010b
Chromium 2.61 2.00 mg/kg EPA 6010b
Copper 6.40 5.00 mg/kg EPA 6010b
Lead 3.75 3.00 mg/kg EPA 6010b
Zinc 32.1 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-20S30
Notes
Reporting
Sample ID:

Barium 53.5 5.00 mg/kg EPA 6010b
Chromium 5.61 2.00 mg/kg EPA 6010b
Cobalt 13.3 2.00 mg/kg EPA 6010b
Copper 18.3 5.00 mg/kg EPA 6010b
Lead 8.42 3.00 mg/kg EPA 6010b
Nickel 4.21 2.00 mg/kg EPA 6010b
Vanadium 12.1 5.00 mg/kg EPA 6010b
Zinc 53.7 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-21S31
Notes
Reporting
Sample ID:

Barium 478 5.00 mg/kg EPA 6010b
Chromium 18.1 2.00 mg/kg EPA 6010b
Cobalt 3.81 2.00 mg/kg EPA 6010b
Copper 58.9 5.00 mg/kg EPA 6010b
Lead 36.0 3.00 mg/kg EPA 6010b
Nickel 10.8 2.00 mg/kg EPA 6010b
Vanadium 23.9 5.00 mg/kg EPA 6010b
Zinc 65.3 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-22S32
Notes
Reporting
Sample ID:

Barium 60.3 5.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 7 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-22S32
Notes
Reporting
Sample ID:

Chromium 7.88 2.00 mg/kg EPA 6010b
Cobalt 2.81 2.00 mg/kg EPA 6010b
Copper 12.1 5.00 mg/kg EPA 6010b
Lead 13.9 3.00 mg/kg EPA 6010b
Nickel 6.25 2.00 mg/kg EPA 6010b
Vanadium 12.9 5.00 mg/kg EPA 6010b
Zinc 89.2 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-23S33
Notes
Reporting
Sample ID:

Barium 64.1 5.00 mg/kg EPA 6010b
Chromium 13.2 2.00 mg/kg EPA 6010b
Cobalt 4.62 2.00 mg/kg EPA 6010b
Copper 371 5.00 mg/kg EPA 6010b
Lead 71.8 3.00 mg/kg EPA 6010b
Nickel 13.8 2.00 mg/kg EPA 6010b
Vanadium 17.0 5.00 mg/kg EPA 6010b
Zinc 150 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-24S34
Notes
Reporting
Sample ID:

Barium 106 5.00 mg/kg EPA 6010b
Chromium 15.5 2.00 mg/kg EPA 6010b
Cobalt 4.02 2.00 mg/kg EPA 6010b
Copper 26.6 5.00 mg/kg EPA 6010b
Lead 17.0 3.00 mg/kg EPA 6010b
Nickel 7.22 2.00 mg/kg EPA 6010b
Vanadium 14.0 5.00 mg/kg EPA 6010b
Zinc 109 5.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 8 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-25S35
Notes
Reporting
Sample ID:

Barium 84.0 5.00 mg/kg EPA 6010b
Chromium 10.0 2.00 mg/kg EPA 6010b
Cobalt 13.3 2.00 mg/kg EPA 6010b
Copper 22.9 5.00 mg/kg EPA 6010b
Lead 40.0 3.00 mg/kg EPA 6010b
Nickel 9.24 2.00 mg/kg EPA 6010b
Vanadium 14.2 5.00 mg/kg EPA 6010b
Zinc 159 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-26S36
Notes
Reporting
Sample ID:

Barium 82.7 5.00 mg/kg EPA 6010b
Chromium 13.2 2.00 mg/kg EPA 6010b
Cobalt 8.08 2.00 mg/kg EPA 6010b
Copper 64.2 5.00 mg/kg EPA 6010b
Lead 58.5 3.00 mg/kg EPA 6010b
Nickel 13.7 2.00 mg/kg EPA 6010b
Vanadium 22.4 5.00 mg/kg EPA 6010b
Zinc 286 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-27S37
Notes
Reporting
Sample ID:

Barium 64.1 5.00 mg/kg EPA 6010b
Chromium 15.2 2.00 mg/kg EPA 6010b
Cobalt 4.82 2.00 mg/kg EPA 6010b
Copper 58.5 5.00 mg/kg EPA 6010b
Lead 36.2 3.00 mg/kg EPA 6010b
Nickel 13.6 2.00 mg/kg EPA 6010b
Vanadium 20.3 5.00 mg/kg EPA 6010b
Zinc 103 5.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 9 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-28S38
Notes
Reporting
Sample ID:

Barium 129 5.00 mg/kg EPA 6010b
Chromium 8.02 2.00 mg/kg EPA 6010b
Cobalt 3.41 2.00 mg/kg EPA 6010b
Copper 14.1 5.00 mg/kg EPA 6010b
Lead 15.4 3.00 mg/kg EPA 6010b
Nickel 5.42 2.00 mg/kg EPA 6010b
Vanadium 15.3 5.00 mg/kg EPA 6010b
Zinc 46.7 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-29S39
Notes
Reporting
Sample ID:

Barium 86.3 5.00 mg/kg EPA 6010b
Chromium 9.36 2.00 mg/kg EPA 6010b
Cobalt 3.18 2.00 mg/kg EPA 6010b
Copper 19.4 5.00 mg/kg EPA 6010b
Lead 208 3.00 mg/kg EPA 6010b
Nickel 5.66 2.00 mg/kg EPA 6010b
Vanadium 13.6 5.00 mg/kg EPA 6010b
Zinc 91.0 5.00 mg/kg EPA 6010b
Mercury 0.12 0.10 mg/kg EPA 7471A Soil
Laboratory ID:

Analyte Result Limit Units Method
T242134-30S40
Notes
Reporting
Sample ID:

Barium 58.6 5.00 mg/kg EPA 6010b
Chromium 12.9 2.00 mg/kg EPA 6010b
Cobalt 3.89 2.00 mg/kg EPA 6010b
Copper 43.6 5.00 mg/kg EPA 6010b
Lead 20.8 3.00 mg/kg EPA 6010b
Nickel 9.55 2.00 mg/kg EPA 6010b
Vanadium 14.8 5.00 mg/kg EPA 6010b
Zinc 98.1 5.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 10 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242134-31S41
Notes
Reporting
Sample ID:

Barium 36.7 5.00 mg/kg EPA 6010b
Chromium 4.17 2.00 mg/kg EPA 6010b
Cobalt 2.71 2.00 mg/kg EPA 6010b
Copper 8.58 5.00 mg/kg EPA 6010b
Lead 7.25 3.00 mg/kg EPA 6010b
Nickel 3.13 2.00 mg/kg EPA 6010b
Vanadium 8.30 5.00 mg/kg EPA 6010b
Zinc 39.7 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-32S42
Notes
Reporting
Sample ID:

Barium 92.1 5.00 mg/kg EPA 6010b
Chromium 9.84 2.00 mg/kg EPA 6010b
Cobalt 3.82 2.00 mg/kg EPA 6010b
Copper 13.0 5.00 mg/kg EPA 6010b
Lead 7.81 3.00 mg/kg EPA 6010b
Nickel 8.04 2.00 mg/kg EPA 6010b
Vanadium 18.2 5.00 mg/kg EPA 6010b
Zinc 39.8 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242134-33S43
Notes
Reporting
Sample ID:

Barium 72.4 5.00 mg/kg EPA 6010b
Chromium 8.57 2.00 mg/kg EPA 6010b
Cobalt 3.65 2.00 mg/kg EPA 6010b
Copper 16.4 5.00 mg/kg EPA 6010b
Lead 17.2 3.00 mg/kg EPA 6010b
Nickel 7.13 2.00 mg/kg EPA 6010b
Vanadium 15.2 5.00 mg/kg EPA 6010b
Zinc 53.8 5.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 12 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S1
1 T242134-01 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b35.5 24E0356 05/22/24 05/24/24 mg/kg 1Antimony 4.00 "7.08 " " "" "Cobalt 2.00
"143 " " "" "Copper 5.00
"229 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 13 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S12
T242134-02 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b4.10 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"5.78 " " "" "Cobalt 2.00
"82.3 " " "" "Copper 5.00
"128 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 14 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S13
T242134-03 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b15.0 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"6.20 " " "" "Cobalt 2.00
"283 " " "" "Copper 5.00
"430 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 15 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S14
T242134-04 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b390 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"12.8 " " "" "Cobalt 2.00
"24700 " " "" 4Copper 20.0
"2350 " " "" 1Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 16 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S15
T242134-05 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b16.2 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"9.21 " " "" "Cobalt 2.00
"172 " " "" "Copper 5.00
"169 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 17 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S16
T242134-06 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"7.49 " " "" "Cobalt 2.00
"50.2 " " "" "Copper 5.00
"319 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 18 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S17
T242134-07 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"36.3 " " "" "Cobalt 2.00
"28.7 " " "" "Copper 5.00
"13.4 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 19 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S18
T242134-08 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"5.33 " " "" "Cobalt 2.00
"42.5 " " "" "Copper 5.00
"92.0 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 20 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S19
T242134-09 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b7.87 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"3.58 " " "" "Cobalt 2.00
"84.2 " " "" "Copper 5.00
"92.5 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 21 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S20
T242134-10 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b20.1 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"6.85 " " "" "Cobalt 2.00
"434 " " 05/24/24 " "Copper 5.00
"1 12 " " 05/24/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 22 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S21
T242134-11 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"7.21 " " "" "Cobalt 2.00
"40.3 " " "" "Copper 5.00
"26.3 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 23 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S22
T242134-12 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"2.39 " " "" "Cobalt 2.00
"1 1.1 " " 05/24/24 " "Copper 5.00
"3.38 " " 05/24/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 24 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S23
T242134-13 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b6.53 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"26.5 " " "" "Cobalt 2.00
"536 " " "" "Copper 5.00
"95.0 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 25 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S24
T242134-14 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b6.21 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"81.6 " " "" "Cobalt 2.00
"275 " " "" "Copper 5.00
"124 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 26 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S25
T242134-15 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"37.9 " " "" "Cobalt 2.00
"194 " " 05/24/24 " "Copper 5.00
"224 " " 05/24/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 27 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S26
T242134-16 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b10.0 24E0356 05/22/24
05/24/24 mg/kg 1Antimony 4.00
"55.3 " " "" "Cobalt 2.00
"180 " " "" "Copper 5.00
"171 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 28 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S27
T242134-17 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"32.1 " " 05/24/24 " "Cobalt 2.00
"1740 " " 05/24/24 " "Copper 5.00
"23.6 " " 05/24/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 29 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S28
T242134-18 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
"104 " " "" "Cobalt 2.00
"227 " " "" "Copper 5.00
"50.0 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 30 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S29
T242134-19 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
ND "" "" ""Arsenic 2.00
"25.8 " " "" "Barium 5.00
ND "" 05/24/24 " ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"2.61 "
" "" "Chromium 2.00
ND "" "" ""Cobalt 2.00
"6.40 " " "" "Copper 5.00
"3.75 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
ND "" "" ""Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
ND "" "" ""Vanadium 5.00
"32.1 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 31 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S30
T242134-20 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03561Antimony 4.00
ND "" "" ""Arsenic 2.00
"53.5 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"5.61 " " "" "Chromium 2.00
"13.3 " " "" "Cobalt 2.00
"18.3 " " "" "Copper 5.00
"8.42 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"4.21 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"12.1 " " "" "Vanadium 5.00
"53.7 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 32 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S31
T242134-21 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"478 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"18.1 " " "" "Chromium 2.00
"3.81 " " "" "Cobalt 2.00
"58.9 " " "" "Copper 5.00
"36.0 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"10.8 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"23.9 " " "" "Vanadium 5.00
"65.3 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 33 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S32
T242134-22 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"60.3 " " "" "Barium 5.00
ND "" 05/24/24 " ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"7.88 "
" "" "Chromium 2.00
"2.81 " " "" "Cobalt 2.00
"12.1 " " "" "Copper 5.00
"13.9 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"6.25 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"12.9 " " "" "Vanadium 5.00
"89.2 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 34 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S33
T242134-23 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"64.1 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"13.2 " " "" "Chromium 2.00
"4.62 " " "" "Cobalt 2.00
"371 " " "" "Copper 5.00
"71.8 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"13.8 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"17.0 " " "" "Vanadium 5.00
"150 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 35 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S34
T242134-24 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"106 " " "" "Barium 5.00
ND "" 05/24/24 " ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"15.5 "
" "" "Chromium 2.00
"4.02 " " "" "Cobalt 2.00
"26.6 " " "" "Copper 5.00
"17.0 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"7.22 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"14.0 " " "" "Vanadium 5.00
"109 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 36 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S35
T242134-25 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"84.0 " " 05/24/24 " "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"10.0 " " 05/24/24 " "Chromium 2.00
"13.3 " " 05/24/24 " "Cobalt 2.00
"22.9 " " 05/24/24 " "Copper 5.00
"40.0 " " 05/24/24 " "Lead 3.00
ND "" "" ""Molybdenum 5.00
"9.24 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" 05/24/24 " ""Silver 2.00
ND "" "" ""Thallium 5.00
"14.2 " " "" "Vanadium 5.00
"159 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 37 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S36
T242134-26 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"82.7 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"13.2 " " "" "Chromium 2.00
"8.08 " " "" "Cobalt 2.00
"64.2 " " "" "Copper 5.00
"58.5 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"13.7 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"22.4 " " "" "Vanadium 5.00
"286 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 38 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S37
T242134-27 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"64.1 " " 05/24/24 " "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"15.2 " " 05/24/24 " "Chromium 2.00
"4.82 " " 05/24/24 " "Cobalt 2.00
"58.5 " " 05/24/24 " "Copper 5.00
"36.2 " " 05/24/24 " "Lead 3.00
ND "" "" ""Molybdenum 5.00
"13.6 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" 05/24/24 " ""Silver 2.00
ND "" 05/24/24 " ""Thallium 5.00
"20.3 " " 05/24/24 " "Vanadium 5.00
"103 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 39 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S38
T242134-28 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"129 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"8.02 " " "" "Chromium 2.00
"3.41 " " "" "Cobalt 2.00
"14.1 " " "" "Copper 5.00
"15.4 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"5.42 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"15.3 " " "" "Vanadium 5.00
"46.7 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 40 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S39
T242134-29 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"86.3 " " "" "Barium 5.00
ND "" 05/24/24 " ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"9.36 "
" "" "Chromium 2.00
"3.18 " " "" "Cobalt 2.00
"19.4 " " "" "Copper 5.00
"208 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"5.66 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"13.6 " " "" "Vanadium 5.00
"91.0 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
EPA
7471A
Soil

0.12 24E0340 05/21/24 05/29/24 mg/kg 1Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 41 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S40
T242134-30 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"58.6 " " 05/24/24 " "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"12.9 " " 05/24/24 " "Chromium 2.00
"3.89 " " 05/24/24 " "Cobalt 2.00
"43.6 " " 05/24/24 " "Copper 5.00
"20.8 " " 05/24/24 " "Lead 3.00
ND "" "" ""Molybdenum 5.00
"9.55 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" 05/24/24 " ""Silver 2.00
ND "" 05/24/24 " ""Thallium 5.00
"14.8 " " 05/24/24 " "Vanadium 5.00
"98.1 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 42 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S41
T242134-31 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"36.7 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"4.17 " " "" "Chromium 2.00
"2.71 " " "" "Cobalt 2.00
"8.58 " " "" "Copper 5.00
"7.25 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"3.13 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"8.30 " " "" "Vanadium 5.00
"39.7 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 43 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S42
T242134-32 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"92.1 " " 05/24/24 " "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" 05/24/24 " ""Cadmium 2.00
"9.84 " " 05/24/24 " "Chromium 2.00
"3.82 " " 05/24/24 " "Cobalt 2.00
"13.0 " " 05/24/24 " "Copper 5.00
"7.81 " " 05/24/24 " "Lead 3.00
ND "" "" ""Molybdenum 5.00
"8.04 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" 05/24/24 " ""Silver 2.00
ND "" 05/24/24 " ""Thallium 5.00
"18.2 " " 05/24/24 " "Vanadium 5.00
"39.8 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 44 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S43
T242134-33 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b05/22/24
05/24/24 mg/kg 24E03601Antimony 4.00
ND "" "" ""Arsenic 2.00
"72.4 " " "" "Barium 5.00
ND "" "" ""Beryllium 1.00
ND "" "" ""Cadmium 2.00
"8.57 " " "" "Chromium 2.00
"3.65 " " "" "Cobalt 2.00
"16.4 " " "" "Copper 5.00
"17.2 " " "" "Lead 3.00
ND "" "" ""Molybdenum 5.00
"7.13 " " "" "Nickel 2.00
ND "" "" ""Selenium 5.00
ND "" "" ""Silver 2.00
ND "" "" ""Thallium 5.00
"15.2 " " "" "Vanadium 5.00
"53.8 " " "" "Zinc 5.00
Cold Vapor Extraction EPA 7470/7471
ND EPA
7471A
Soil
05/21/24 05/29/24 mg/kg 24E03401Mercury 0.10
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 45 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24E0356 - EPA 3050B
Blank (24E0356-BLK1) Prepared: 05/22/24 Analyzed: 05/24/24 Antimony mg/kgND 4.00
Arsenic "ND 2.00
Barium "ND 5.00
Beryllium "ND 1.00
Cadmium "ND 2.00
Chromium "ND 2.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
Molybdenum "ND 5.00
Nickel "ND 2.00
Selenium "ND 5.00
Silver "ND 2.00
Thallium "ND 5.00
Vanadium "ND 5.00
Zinc "ND 5.00
LCS (24E0356-BS1) Prepared: 05/22/24 Analyzed: 05/24/24 Arsenic mg/kg92.0

2.00 100 80-12092.0
Barium "95.0 5.00 100 80-12095.0
Cadmium "97.0 2.00 100 80-12097.0
Chromium "93.5 2.00 100 80-12093.5
Lead "94.4 3.00 100 80-12094.4
Matrix Spike (24E0356-MS1) Prepared: 05/22/24 Analyzed: 05/24/24 Source: T242134-01 Arsenic mg/kg83.8 2.00 100 ND 75-12583.8
Barium "124 5.00 100 54.6 QM-0775-12569.9
Cadmium "88.7 2.00 100 2.80 75-12585.9
Chromium "229 2.00 100 340 QM-0775-125NR
Lead "259 3.00 100 229 QM-0775-12529.7
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 46 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24E0356 - EPA 3050B
Matrix Spike Dup (24E0356-MSD1) Prepared: 05/22/24 Analyzed: 05/24/24 Source: T242134-01 Arsenic mg/kg86.1

2.00 100 ND 2075-12586.1 2.70
Barium "143 5.00 100 54.6 2075-12588.0 13.6
Cadmium "91.0 2.00 100 2.80 2075-12588.2 2.55
Chromium "264 2.00 100 340 20 QM-0775-125NR 14.1
Lead "305 3.00 100 229 2075-12575.7 16.3
Batch 24E0360 - EPA 3050B
Blank (24E0360-BLK1) Prepared: 05/22/24 Analyzed: 05/24/24 Antimony mg/kgND 4.00
Arsenic "ND 2.00
Barium "ND 5.00
Beryllium "ND 1.00
Cadmium "ND 2.00
Chromium "ND 2.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
Molybdenum "ND 5.00
Nickel "ND 2.00
Selenium "ND 5.00
Silver "ND 2.00
Thallium "ND 5.00
Vanadium "ND 5.00
Zinc "ND 5.00
LCS (24E0360-BS1) Prepared: 05/22/24 Analyzed: 05/24/24 Arsenic mg/kg99.5 2.00 100 80-12099.5
Barium "103 5.00 100 80-120103
Cadmium "104 2.00 100 80-120104
Chromium "101 2.00 100 80-120101
Lead "103 3.00 100 80-120103
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 47 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24E0360 - EPA 3050B
Matrix Spike (24E0360-MS1) Prepared: 05/22/24 Analyzed: 05/24/24 Source: T242134-21 Arsenic mg/kg79.7

2.00 100 ND 75-12579.7
Barium "326 5.00 100 478 QM-0775-125NR
Cadmium "82.2 2.00 100 0.797 75-12581.4
Chromium "93.5 2.00 100 18.1 75-12575.4
Lead "120 3.00 100 36.0 75-12583.6
Matrix Spike Dup (24E0360-MSD1) Prepared: 05/22/24 Analyzed: 05/24/24 Source: T242134-21 Arsenic mg/kg83.5 2.00 100 ND 2075-12583.5 4.76
Barium "424 5.00 100 478 20 QM-0775-125NR 26.3
Cadmium "85.3 2.00 100 0.797 2075-12584.5 3.69
Chromium "102 2.00 100 18.1 2075-12584.0 8.80
Lead "120 3.00 100 36.0 2075-12584.1 0.467
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 48 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Cold Vapor Extraction EPA 7470/7471 - Quality Control
SunStar Laboratories, Inc.

Batch 24E0340 - EPA 7471A Soil
Blank (24E0340-BLK1) Prepared: 05/21/24 Analyzed: 05/29/24 Mercury mg/kgND 0.10
LCS (24E0340-BS1) Prepared: 05/21/24 Analyzed: 05/29/24 Mercury mg/kg0.366

0.10 0.391 80-12093.6
Matrix Spike (24E0340-MS1) Prepared: 05/21/24 Analyzed: 05/29/24 Source: T242118-01 Mercury mg/kg0.332 0.10 0.385 ND 80-12086.4
Matrix Spike Dup (24E0340-MSD1) Prepared: 05/21/24 Analyzed: 05/29/24 Source: T242118-01 Mercury mg/kg0.348 0.10 0.397 ND 2080-12087.8 4.63
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 49 of 50 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
05/30/24 15:43Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Notes and Definitions
QM-07 The spike recovery and/or RPD was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery.

Sample results reported on a dry weight basis
Relative Percent DifferenceRPD
dry
Not ReportedNR
Analyte NOT DETECTED at or above the reporting limitND
Analyte DETECTEDDET
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 50 of 50 ends

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WORK ORDER
T242134
Brusca Associates Inc.

Pacific Street Property 142-007Proje c t: Project Number:

Client:

Printed: 5/22/2024 12:32:36PM
Project Manager: Joan n Marroquin
Report To :

Brusc a Associates Inc.

Joe Brusca
PO Box 332
Roseville, CA 95661
Re ce ived By:

Logged In By:

Date Due:

Date Received:

Date Logged In:
05/3 0 /24 17:00 (5 day TAT)
05/22/24 09:30
05/22/24 12:27
Travis Berner
Jeff Lee
Samples Re ce ived at: 5.9°C
Analysis Due TAT E xpires Comments
COC/Labels Agree
Custody Seals
Containers Intact
Preservation Confirm
No
Yes
Yes
No
Received On Ice Yes
T2 42134 -01 S11 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -02 S12 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -03 S13 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -04 S14 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -05 S15 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -06 S16 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -07 S17 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -08 S18 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -09 S19 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals

Page 1 of 3 ends

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WORK ORDER
T242134
Brusca Associates Inc.

Pacific Street Property 142-007Proje c t: Project Number:

Client:

Printed: 5/22/2024 12:32:36PM
Project Manager: Joan n Marroquin
Analysis Due TAT E xpires Comments
T2 42134 -10 S20 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -11 S21 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -12 S22 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -13 S23 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -14 S24 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -15 S25 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -16 S26 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -17 S27 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -18 S28 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -19 S29 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -20 S30 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -21 S31 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -22 S32 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -23 S33 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals

Page 2 of 3 ends

Page 57 of 62469 ends

WORK ORDER
T242134
Brusca Associates Inc.

Pacific Street Property 142-007Proje c t: Project Number:

Client:

Printed: 5/22/2024 12:32:36PM
Project Manager: Joan n Marroquin
Analysis Due TAT E xpires Comments
T2 42134 -24 S34 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -25 S35 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -26 S36 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -27 S37 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -28 S38 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -29 S39 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -30 S40 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -31 S41 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -32 S42 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals T2 42134 -33 S43 [Soil] Sampled 05/20/24 00:00 (GMT-08:00) Pacific Time (US & 11/1 6 /24 00:0005/30/24 15:00 5 Antimony, Cobalt, Copper, and Lead Only6010 Individual Metals

Page 3 of 3 ends

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/0/1 /2 /3 /4 /1 /2 /5 /6 /2
/7 /8 /9 /8 /10 /11 /9
/12 /13 /14 /15 /16 /17 /4 /18 /15 /15 /19 /16 /20 /17 /21 /22 /15 /4 /23 /24 /16 /25 /26 /17 /16 /20 /27 /20 /16 /4 /28 /21 /13 /22 /22 /21 /4 /26 /13 /19 /29 /22 /13 /21 /30/10 /9 /8 /31 /32 /32 /33/26 /13 /19 /34 /22 /16 /21 /35 /4 /26 /13 /19 /34 /22 /16 /21 /4 /36 /14 /37 /38 /22 /13 /35 /39 /40 /20 /22 /24 /21 /35 /4
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/48 /49 /50 /51 /52 /53 /54 /55 /51 /51 /56 /52 /57 /53 /58 /59 /51 /54 /60 /61 /52 /62 /63 /56 /59 /54 /48 /49 /50 /51 /52 /53
/64 /65 /54 /48 /56 /66 /54 /67 /67 /68
/69 /56 /51 /59 /70 /57 /71 /71 /59 /72 /54 /73 /55 /54 /74 /75 /76 /76 /77 /69 /59 /52 /59 /57 /70 /59 /78 /54 /48 /79 /80
/81 /56 /82 /82 /59 /78 /54 /60 /61 /54 /48 /79 /80
/83 /53 /58 /59 /54 /83 /50 /59 /80
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Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Brusca Associates Inc.

RE: Pacific Street Property
Roseville, CA 95661
PO Box 332
Joe Brusca
Joann Marroquin
Director of Operations
Enclosed are the results of analyses for samples received by the laboratory on 06/19/24 10:37. If you have any questions concerning this report, please feel free to contact me.

Sincerely,
21 June 2024

Page 1 of 31475 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

ANALYTICAL REPORT FOR SAMPLES
Date Received
S44 T242548-01 Soil 06/18/24 00:00 06/19/24 10:37
S45 T242548-02 Soil 06/18/24 00:00 06/19/24 10:37
S46 T242548-03 Soil 06/18/24 00:00 06/19/24 10:37
S47 T242548-04 Soil 06/18/24 00:00 06/19/24 10:37
S48 T242548-05 Soil 06/18/24 00:00 06/19/24 10:37
S49 T242548-06 Soil 06/18/24 00:00 06/19/24 10:37
S50 T242548-07 Soil 06/18/24 00:00 06/19/24 10:37
S51 T242548-08 Soil 06/18/24 00:00 06/19/24 10:37
S52 T242548-09 Soil 06/18/24 00:00 06/19/24 10:37
S53 T242548-10 Soil 06/18/24 00:00 06/19/24 10:37
S54 T242548-1
1 Soil 06/18/24 00:00 06/19/24 10:37
S55 T242548-12 Soil 06/18/24 00:00 06/19/24 10:37
S56 T242548-13 Soil 06/18/24 00:00 06/19/24 10:37
S57 T242548-14 Soil 06/18/24 00:00 06/19/24 10:37
S58 T242548-15 Soil 06/18/24 00:00 06/19/24 10:37
S59 T242548-16 Soil 06/18/24 00:00 06/19/24 10:37
S60 T242548-17 Soil 06/18/24 00:00 06/19/24 10:37
S61 T242548-18 Soil 06/18/24 00:00 06/19/24 10:37
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax

DETECTIONS SUMMAR Y
Laboratory ID:

Analyte Result Limit Units Method
T242548-01S44
Notes
Reporting
Sample ID:

Cobalt 3.92 2.00 mg/kg EPA 6010b
Copper 30.5 5.00 mg/kg EPA 6010b
Lead 557 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-02S45
Notes
Reporting
Sample ID:

Antimony 12.3 4.00 mg/kg EPA 6010b
Cobalt 3.13 2.00 mg/kg EPA 6010b
Copper 23.4 5.00 mg/kg EPA 6010b
Lead 60.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-03S46
Notes
Reporting
Sample ID:

Antimony 4.20 4.00 mg/kg EPA 6010b
Cobalt 4.15 2.00 mg/kg EPA 6010b
Copper 34.9 5.00 mg/kg EPA 6010b
Lead 66.4 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-04S47
Notes
Reporting
Sample ID:

Antimony 4.43 4.00 mg/kg EPA 6010b
Cobalt 7.63 2.00 mg/kg EPA 6010b
Copper 305 5.00 mg/kg EPA 6010b
Lead 60.6 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 2 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242548-05S48
Notes
Reporting
Sample ID:

Cobalt 8.00 2.00 mg/kg EPA 6010b
Copper 15.9 5.00 mg/kg EPA 6010b
Lead 28.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-06S49
Notes
Reporting
Sample ID:

Cobalt 6.87 2.00 mg/kg EPA 6010b
Copper 20.2 5.00 mg/kg EPA 6010b
Lead 25.3 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-07S50
Notes
Reporting
Sample ID:

Cobalt 3.87 2.00 mg/kg EPA 6010b
Copper 14.1 5.00 mg/kg EPA 6010b
Lead 7.89 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-08S51
Notes
Reporting
Sample ID:

Antimony 15.0 4.00 mg/kg EPA 6010b
Cobalt 5.98 2.00 mg/kg EPA 6010b
Copper 40.4 5.00 mg/kg EPA 6010b
Lead 157 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-09S52
Notes
Reporting
Sample ID:

Antimony 7.52 4.00 mg/kg EPA 6010b
Cobalt 15.8 2.00 mg/kg EPA 6010b
Copper 450 5.00 mg/kg EPA 6010b
Lead 105 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 3 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242548-10S53
Notes
Reporting
Sample ID:

Antimony 10.1 4.00 mg/kg EPA 6010b
Cobalt 14.4 2.00 mg/kg EPA 6010b
Copper 356 5.00 mg/kg EPA 6010b
Lead 197 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-1
1S54
Notes
Reporting
Sample ID:

Cobalt 10.8 2.00 mg/kg EPA 6010b
Copper 532 5.00 mg/kg EPA 6010b
Lead 65.9 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-12S55
Notes
Reporting
Sample ID:

Cobalt 4.66 2.00 mg/kg EPA 6010b
Copper 41.7 5.00 mg/kg EPA 6010b
Lead 50.6 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-13S56
Notes
Reporting
Sample ID:

Cobalt 33.8 2.00 mg/kg EPA 6010b
Copper 128 5.00 mg/kg EPA 6010b
Lead 55.5 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-14S57
Notes
Reporting
Sample ID:

Cobalt 179 2.00 mg/kg EPA 6010b
Copper 98.3 5.00 mg/kg EPA 6010b
Lead 26.4 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 4 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242548-15S58
Notes
Reporting
Sample ID:

Cobalt 10.7 2.00 mg/kg EPA 6010b
Copper 29.5 5.00 mg/kg EPA 6010b
Lead 9.98 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-16S59
Notes
Reporting
Sample ID:

Cobalt 6.16 2.00 mg/kg EPA 6010b
Copper 32.7 5.00 mg/kg EPA 6010b
Lead 423 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-17S60
Notes
Reporting
Sample ID:

Cobalt 3.59 2.00 mg/kg EPA 6010b
Copper 17.2 5.00 mg/kg EPA 6010b
Lead 29.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242548-18S61
Notes
Reporting
Sample ID:

Cobalt 3.38 2.00 mg/kg EPA 6010b
Copper 13.4 5.00 mg/kg EPA 6010b
Lead 47.5 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 5 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S44
T242548-01 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"3.92 " " "" "Cobalt 2.00
"30.5 " " "" "Copper 5.00
"557 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 6 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b12.3 24F0312 06/19/24
06/21/24 mg/kg 1Antimony 4.00
"3.13 " " "" "Cobalt 2.00
"23.4 " " "" "Copper 5.00
"60.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 7 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b4.20 24F0312 06/19/24
06/21/24 mg/kg 1Antimony 4.00
"4.15 " " "" "Cobalt 2.00
"34.9 " " "" "Copper 5.00
"66.4 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 8 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b4.43 24F0312 06/19/24
06/21/24 mg/kg 1Antimony 4.00
"7.63 " " "" "Cobalt 2.00
"305 " " 06/21/24 " "Copper 5.00
"60.6 " " 06/21/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 9 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"8.00 " " "" "Cobalt 2.00
"15.9 " " "" "Copper 5.00
"28.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 10 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"6.87 " " "" "Cobalt 2.00
"20.2 " " "" "Copper 5.00
"25.3 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"3.87 " " "" "Cobalt 2.00
"14.1 " " "" "Copper 5.00
"7.89 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 12 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b15.0 24F0312 06/19/24
06/21/24 mg/kg 1Antimony 4.00
"5.98 " " "" "Cobalt 2.00
"40.4 " " "" "Copper 5.00
"157 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 13 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b7.52 24F0312 06/19/24
06/21/24 mg/kg 1Antimony 4.00
"15.8 " " "" "Cobalt 2.00
"450 " " "" "Copper 5.00
"105 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 14 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b10.1 24F0312 06/19/24
06/21/24 mg/kg 1Antimony 4.00
"14.4 " " "" "Cobalt 2.00
"356 " " "" "Copper 5.00
"197 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 15 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"10.8 " " "" "Cobalt 2.00
"532 " " "" "Copper 5.00
"65.9 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 16 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"4.66 " " "" "Cobalt 2.00
"41.7 " " 06/21/24 " "Copper 5.00
"50.6 " " 06/21/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 17 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"33.8 " " "" "Cobalt 2.00
"128 " " "" "Copper 5.00
"55.5 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 18 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"179 " " "" "Cobalt 2.00
"98.3 " " "" "Copper 5.00
"26.4 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 19 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"10.7 " " "" "Cobalt 2.00
"29.5 " " "" "Copper 5.00
"9.98 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 20 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"6.16 " " "" "Cobalt 2.00
"32.7 " " "" "Copper 5.00
"423 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 21 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"3.59 " " "" "Cobalt 2.00
"17.2 " " "" "Copper 5.00
"29.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 22 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b06/19/24
06/21/24 mg/kg 24F03121Antimony 4.00
"3.38 " " "" "Cobalt 2.00
"13.4 " " "" "Copper 5.00
"47.5 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 23 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24F0312 - EPA 3050B
Blank (24F0312-BLK1) Prepared: 06/19/24 Analyzed: 06/21/24 Antimony mg/kgND 4.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
LCS (24F0312-BS1) Prepared: 06/19/24 Analyzed: 06/21/24 Lead mg/kg106

3.00 100 80-120106
Matrix Spike (24F0312-MS1) Prepared: 06/19/24 Analyzed: 06/21/24 Source: T242548-01 Lead mg/kg397 3.00 100 557 QM-0775-125NR
Matrix Spike Dup (24F0312-MSD1) Prepared: 06/19/24 Analyzed: 06/21/24 Source: T242548-01 Lead mg/kg540 3.00 100 557 20 QM-0775-125NR 30.5
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 24 of 25 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
06/21/24 16:1
1Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Notes and Definitions
QM-07 The spike recovery and/or RPD was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery.

Page 25 of 25 ends

Page 27 of 31501 ends

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WORK ORDER
T242548
Brusca Associates Inc.

Pacific Street Property 142-007Project: Project Number:

Client:

Printed: 6/19/2024 11:21:04AM
Project Manager: Joann Marroquin
Report To:

Brusca Associates Inc.

Joe Brusca
PO Box 332
Roseville, CA 95661
Received By:

Logged In By:

Date Due:

Date Received:

Date Logged In:
06/26/24 17:00 (5 day TAT)
06/19/24 10:37
06/19/24 11:16
Paul Berner
Steven Garcia
Samples Received at: 4.8°C
Analysis Due TAT Expires Comments
COC/Labels Agree
Custody Seals
Containers Intact
Preservation Confirmed
No
Yes
Yes
No
Received On Ice Yes
T242548-01 S44 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-02 S45 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-03 S46 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-04 S47 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-05 S48 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-06 S49 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-07 S50 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-08 S51 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-09 S52 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals

Page 1 of 2 ends

Page 30 of 31504 ends

WORK ORDER
T242548
Brusca Associates Inc.

Pacific Street Property 142-007Project: Project Number:

Client:

Printed: 6/19/2024 11:21:04AM
Project Manager: Joann Marroquin
Analysis Due TAT Expires Comments
T242548-10 S53 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-11 S54 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-12 S55 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-13 S56 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-14 S57 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-15 S58 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-16 S59 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-17 S60 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals T242548-18 S61 [Soil] Sampled 06/18/24 00:00 (GMT-08:00) Pacific Time (US & 12/15/24 00:0006/26/24 15:00 5 Sb, Co, Cu and Pb6010 Individual Metals

Page 2 of 2 ends

Page 31 of 31505 ends

25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Brusca Associates Inc.

RE: Pacific Street Property
Roseville, CA 95661
PO Box 332
Joe Brusca
Joann Marroquin
Director of Operations
Enclosed are the results of analyses for samples received by the laboratory on 07/17/24 1 1:00. If you have
any questions concerning this report, please feel free to contact me.

Sincerely,
19 July 2024

Page 1 of 25506 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

ANALYTICAL REPORT FOR SAMPLES
Date Received
S62 T242945-01 Soil 07/15/24 00:00 07/17/24 11:00
S63 T242945-02 Soil 07/15/24 00:00 07/17/24 11:00
S64 T242945-03 Soil 07/15/24 00:00 07/17/24 11:00
S65 T242945-04 Soil 07/15/24 00:00 07/17/24 11:00
S66 T242945-05 Soil 07/15/24 00:00 07/17/24 11:00
S67 T242945-06 Soil 07/15/24 00:00 07/17/24 11:00
S68 T242945-07 Soil 07/15/24 00:00 07/17/24 11:00
S69 T242945-08 Soil 07/15/24 00:00 07/17/24 11:00
S70 T242945-09 Soil 07/15/24 00:00 07/17/24 11:00
S71 T242945-10 Soil 07/15/24 00:00 07/17/24 11:00
S72 T242945-1
1 Soil 07/15/24 00:00 07/17/24 11:00
S73 T242945-12 Soil 07/15/24 00:00 07/17/24 11:00
S74 T242945-13 Soil 07/15/24 00:00 07/17/24 11:00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax

DETECTIONS SUMMAR Y
Laboratory ID:

Analyte Result Limit Units Method
T242945-01S62
Notes
Reporting
Sample ID:

Cobalt 5.73 2.00 mg/kg EPA 6010b
Copper 9.92 5.00 mg/kg EPA 6010b
Lead 6.10 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-02S63
Notes
Reporting
Sample ID:

Cobalt 2.82 2.00 mg/kg EPA 6010b
Copper 14.0 5.00 mg/kg EPA 6010b
Lead 30.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-03S64
Notes
Reporting
Sample ID:

Cobalt 7.31 2.00 mg/kg EPA 6010b
Copper 23.0 5.00 mg/kg EPA 6010b
Lead 76.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-04S65
Notes
Reporting
Sample ID:

Cobalt 5.65 2.00 mg/kg EPA 6010b
Copper 39.9 5.00 mg/kg EPA 6010b
Lead 68.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-05S66
Notes
Reporting
Sample ID:

Cobalt 3.38 2.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 2 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242945-05S66
Notes
Reporting
Sample ID:

Copper 52.8 5.00 mg/kg EPA 6010b
Lead 83.3 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-06S67
Notes
Reporting
Sample ID:

Antimony 6.45 4.00 mg/kg EPA 6010b
Cobalt 6.48 2.00 mg/kg EPA 6010b
Copper 87.1 5.00 mg/kg EPA 6010b
Lead 180 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-07S68
Notes
Reporting
Sample ID:

Antimony 56.0 4.00 mg/kg EPA 6010b
Cobalt 1

1.8 2.00 mg/kg EPA 6010b
Copper 253 5.00 mg/kg EPA 6010b
Lead 451 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-08S69
Notes
Reporting
Sample ID:

Antimony 4.99 4.00 mg/kg EPA 6010b
Cobalt 7.16 2.00 mg/kg EPA 6010b
Copper 76.9 5.00 mg/kg EPA 6010b
Lead 73.6 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-09S70
Notes
Reporting
Sample ID:

Cobalt 17.9 2.00 mg/kg EPA 6010b
Copper 110 5.00 mg/kg EPA 6010b
Lead 161 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 3 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T242945-10S71
Notes
Reporting
Sample ID:

Antimony 10.4 4.00 mg/kg EPA 6010b
Cobalt 1
18 2.00 mg/kg EPA 6010b
Copper 94.9 5.00 mg/kg EPA 6010b
Lead 22.2 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-11S72
Notes
Reporting
Sample ID:

Cobalt 9.16 2.00 mg/kg EPA 6010b
Copper 40.1 5.00 mg/kg EPA 6010b
Lead 9.68 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-12S73
Notes
Reporting
Sample ID:

Cobalt 4.18 2.00 mg/kg EPA 6010b
Copper 14.2 5.00 mg/kg EPA 6010b
Lead 14.4 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T242945-13S74
Notes
Reporting
Sample ID:

Lead 4.67 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 4 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S62
T242945-01 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"5.73 " " "" "Cobalt 2.00
"9.92 " " "" "Copper 5.00
"6.10 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 5 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S63
T242945-02 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"2.82 " " "" "Cobalt 2.00
"14.0 " " "" "Copper 5.00
"30.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 6 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S64
T242945-03 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"7.31 " " "" "Cobalt 2.00
"23.0 " " "" "Copper 5.00
"76.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 7 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S65
T242945-04 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"5.65 " " "" "Cobalt 2.00
"39.9 " " "" "Copper 5.00
"68.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 8 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S66
T242945-05 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"3.38 " " "" "Cobalt 2.00
"52.8 " " "" "Copper 5.00
"83.3 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 9 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S67
T242945-06 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b6.45 24G0303 07/17/24
07/18/24 mg/kg 1Antimony 4.00
"6.48 " " "" "Cobalt 2.00
"87.1 " " "" "Copper 5.00
"180 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 10 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S68
T242945-07 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b56.0 24G0303 07/17/24
07/18/24 mg/kg 1Antimony 4.00
"1 1.8 " " "" "Cobalt 2.00
"253 " " "" "Copper 5.00
"451 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S69
T242945-08 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b4.99 24G0303 07/17/24
07/18/24 mg/kg 1Antimony 4.00
"7.16 " " "" "Cobalt 2.00
"76.9 " " 07/18/24 " "Copper 5.00
"73.6 " " 07/18/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 12 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S70
T242945-09 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"17.9 " " "" "Cobalt 2.00
"1 10 " " "" "Copper 5.00
"161 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 13 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S71
T242945-10 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
EPA 6010b10.4 24G0303 07/17/24
07/18/24 mg/kg 1Antimony 4.00
"1 18 " " "" "Cobalt 2.00
"94.9 " " "" "Copper 5.00
"22.2 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 14 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S72
T242945-11 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"9.16 " " "" "Cobalt 2.00
"40.1 " " "" "Copper 5.00
"9.68 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 15 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S73
T242945-12 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
"4.18 " " "" "Cobalt 2.00
"14.2 " " "" "Copper 5.00
"14.4 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 16 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S74
T242945-13 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/17/24
07/18/24 mg/kg 24G03031Antimony 4.00
ND "" "" ""Cobalt 2.00
ND "" 07/18/24 " ""Copper 5.00
"4.67 " " 07/18/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 17 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24G0303 - EPA 3050B
Blank (24G0303-BLK1) Prepared: 07/17/24 Analyzed: 07/18/24 Antimony mg/kgND 4.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
LCS (24G0303-BS1) Prepared: 07/17/24 Analyzed: 07/18/24 Lead mg/kg101

3.00 100 80-120101
Matrix Spike (24G0303-MS1) Prepared: 07/17/24 Analyzed: 07/18/24 Source: T242945-01 Lead mg/kg94.7 3.00 100 6.10 75-12588.6
Matrix Spike Dup (24G0303-MSD1) Prepared: 07/17/24 Analyzed: 07/18/24 Source: T242945-01 Lead mg/kg93.5 3.00 100 6.10 2075-12587.4 1.28
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 18 of 19 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
07/19/24 16:05Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Notes and Definitions
Sample results reported on a dry weight basis
Relative Percent DifferenceRPD
dry
Not ReportedNR
Analyte NOT DETECTED at or above the reporting limitND
Analyte DETECTEDDET
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 19 of 19 ends

Page 21 of 25526 ends

Page 22 of 25527 ends

Page 23 of 25528 ends

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Page 25 of 25530 ends

25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Brusca Associates Inc.

RE: Pacific Street Property
Roseville, CA 95661
PO Box 332
Joe Brusca
Joann Marroquin
Director of Operations
Enclosed are the results of analyses for samples received by the laboratory on 07/30/24 1 1:27. If you have
any questions concerning this report, please feel free to contact me.

Sincerely,
01 August 2024

Page 1 of 13531 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

ANALYTICAL REPORT FOR SAMPLES
Date Received
S75 T243105-01 Soil 07/29/24 00:00 07/30/24 11:27
S76 T243105-02 Soil 07/29/24 00:00 07/30/24 11:27
S77 T243105-03 Soil 07/29/24 00:00 07/30/24 11:27
S78 T243105-04 Soil 07/29/24 00:00 07/30/24 11:27
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
08/01/24 16:55Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax

DETECTIONS SUMMAR Y
Laboratory ID:

Analyte Result Limit Units Method
T243105-01S75
Notes
Reporting
Sample ID:

Cobalt 3.82 2.00 mg/kg EPA 6010b
Copper 8.46 5.00 mg/kg EPA 6010b
Lead 6.39 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243105-02S76
Notes
Reporting
Sample ID:

Cobalt 2.97 2.00 mg/kg EPA 6010b
Copper 11.4 5.00 mg/kg EPA 6010b
Lead 7.75 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243105-03S77
Notes
Reporting
Sample ID:

Cobalt 3.45 2.00 mg/kg EPA 6010b
Copper 49.2 5.00 mg/kg EPA 6010b
Lead 16.2 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243105-04S78
Notes
Reporting
Sample ID:

Cobalt 7.47 2.00 mg/kg EPA 6010b
Copper 26.5 5.00 mg/kg EPA 6010b
Lead 22.0 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 2 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
08/01/24 16:55Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S75
T243105-01 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b07/30/24
07/30/24 mg/kg 24G05041Antimony 4.00
"3.82 " " "" "Cobalt 2.00
"8.46 " " "" "Copper 5.00
"6.39 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 3 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b07/30/24
07/30/24 mg/kg 24G05041Antimony 4.00
"2.97 " " "" "Cobalt 2.00
"1 1.4 " " "" "Copper 5.00
"7.75 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 4 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b07/30/24
07/30/24 mg/kg 24G05041Antimony 4.00
"3.45 " " "" "Cobalt 2.00
"49.2 " " "" "Copper 5.00
"16.2 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 5 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b07/30/24
07/30/24 mg/kg 24G05041Antimony 4.00
"7.47 " " "" "Cobalt 2.00
"26.5 " " 07/30/24 " "Copper 5.00
"22.0 " " 07/30/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 6 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
08/01/24 16:55Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24G0504 - EPA 3050B
Blank (24G0504-BLK1) Prepared & Analyzed: 07/30/24
Antimony mg/kgND 4.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
LCS (24G0504-BS1) Prepared & Analyzed: 07/30/24
Lead mg/kg109

3.00 100 80-120109
Matrix Spike (24G0504-MS1) Prepared & Analyzed: 07/30/24 Source: T243099-01 Lead mg/kg67.9 3.00 100 7.40 QM-0775-12560.5
Matrix Spike Dup (24G0504-MSD1) Prepared & Analyzed: 07/30/24 Source: T243099-01 Lead mg/kg65.7 3.00 100 7.40 20 QM-0775-12558.4 3.22
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 7 of 8 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
08/01/24 16:55Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Notes and Definitions
QM-07 The spike recovery and/or RPD was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery.

Page 8 of 8 ends

Page 10 of 13540 ends

Page 11 of 13541 ends

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Page 12 of 13542 ends

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Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Brusca Associates Inc.

RE: Pacific Street Property
Roseville, CA 95661
PO Box 332
Joe Brusca
Joann Marroquin
Director of Operations
Enclosed are the results of analyses for samples received by the laboratory on 09/06/24 16:41. If you have any questions concerning this report, please feel free to contact me.

Sincerely,
18 September 2024

Page 1 of 39544 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

ANALYTICAL REPORT FOR SAMPLES
Date Received
S3-1 T243630-01 Soil 09/04/24 00:00 09/06/24 16:41
S3-2 T243630-02 Soil 09/04/24 00:00 09/06/24 16:41
S14-1 T243630-04 Soil 09/04/24 00:00 09/06/24 16:41
S14-2 T243630-05 Soil 09/04/24 00:00 09/06/24 16:41
S44-1 T243630-07 Soil 09/04/24 00:00 09/06/24 16:41
S44-2 T243630-08 Soil 09/04/24 00:00 09/06/24 16:41
S68-1 T243630-10 Soil 09/04/24 00:00 09/06/24 16:41
S68-2 T243630-1
1 Soil 09/04/24 00:00 09/06/24 16:41
S68-3 T243630-12 Soil 09/05/24 00:00 09/06/24 16:41
S5-1 T243630-13 Soil 09/04/24 00:00 09/06/24 16:41
S5-2 T243630-14 Soil 09/04/24 00:00 09/06/24 16:41
S5-3 T243630-15 Soil 09/04/24 00:00 09/06/24 16:41
S5-4 T243630-16 Soil 09/04/24 00:00 09/06/24 16:41
S70-1 T243630-17 Soil 09/04/24 00:00 09/06/24 16:41
S70-2 T243630-18 Soil 09/04/24 00:00 09/06/24 16:41
S70-3 T243630-19 Soil 09/04/24 00:00 09/06/24 16:41
S59-1 T243630-20 Soil 09/04/24 00:00 09/06/24 16:41
S59-2 T243630-21 Soil 09/04/24 00:00 09/06/24 16:41
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
09/18/24 17:24Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax

DETECTIONS SUMMAR Y
Laboratory ID:

Analyte Result Limit Units Method
T243630-01S3-1
Notes
Reporting
Sample ID:

Cobalt 4.27 2.00 mg/kg EPA 6010b
Copper 19.9 5.00 mg/kg EPA 6010b
Lead 36.7 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-02S3-2
Notes
Reporting
Sample ID:

Cobalt 4.43 2.00 mg/kg EPA 6010b
Copper 5.99 5.00 mg/kg EPA 6010b
Lead 5.52 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-04S14-1
Notes
Reporting
Sample ID:

Antimony 7.30 4.00 mg/kg EPA 6010b
Cobalt 4.58 2.00 mg/kg EPA 6010b
Copper 452 5.00 mg/kg EPA 6010b
Lead 180 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-05S14-2
Notes
Reporting
Sample ID:

Cobalt 4.35 2.00 mg/kg EPA 6010b
Copper 5.73 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-07S44-1
Notes
Reporting
Sample ID:

Cobalt 5.46 2.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 2 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
09/18/24 17:24Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T243630-07S44-1
Notes
Reporting
Sample ID:

Copper 7.83 5.00 mg/kg EPA 6010b
Lead 5.62 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-08S44-2
Notes
Reporting
Sample ID:

Cobalt 2.54 2.00 mg/kg EPA 6010b
Copper 19.6 5.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-10S68-1
Notes
Reporting
Sample ID:

Antimony 18.4 4.00 mg/kg EPA 6010b
Cobalt 2.57 2.00 mg/kg EPA 6010b
Copper 106 5.00 mg/kg EPA 6010b
Lead 328 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-1
1S68-2
Notes
Reporting
Sample ID:

Antimony 54.7 4.00 mg/kg EPA 6010b
Cobalt 2.37 2.00 mg/kg EPA 6010b
Copper 132 5.00 mg/kg EPA 6010b
Lead 807 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-12S68-3
Notes
Reporting
Sample ID:

Copper 9.14 5.00 mg/kg EPA 6010b
Lead 8.05 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 3 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
09/18/24 17:24Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T243630-13S5-1
Notes
Reporting
Sample ID:

Cobalt 41.0 2.00 mg/kg EPA 6010b
Copper 2130 5.00 mg/kg EPA 6010b
Lead 46.5 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-14S5-2
Notes
Reporting
Sample ID:

Cobalt 92.8 2.00 mg/kg EPA 6010b
Copper 351 5.00 mg/kg EPA 6010b
Lead 35.8 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-15S5-3
Notes
Reporting
Sample ID:

Antimony 8.38 4.00 mg/kg EPA 6010b
Cobalt 33.8 2.00 mg/kg EPA 6010b
Copper 3180 5.00 mg/kg EPA 6010b
Lead 58.3 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-16S5-4
Notes
Reporting
Sample ID:

Antimony 22.9 4.00 mg/kg EPA 6010b
Cobalt 34.3 2.00 mg/kg EPA 6010b
Copper 2520 5.00 mg/kg EPA 6010b
Lead 63.6 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-17S70-1
Notes
Reporting
Sample ID:

Cobalt 2.66 2.00 mg/kg EPA 6010b
Copper 16.2 5.00 mg/kg EPA 6010b
Lead 23.9 3.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 4 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
09/18/24 17:24Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Laboratory ID:

Analyte Result Limit Units Method
T243630-18S70-2
Notes
Reporting
Sample ID:

Copper 5.81 5.00 mg/kg EPA 6010b
Lead 3.71 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-19S70-3
Notes
Reporting
Sample ID:

Copper 6.21 5.00 mg/kg EPA 6010b
Lead 6.03 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-20S59-1
Notes
Reporting
Sample ID:

Cobalt 2.12 2.00 mg/kg EPA 6010b
Copper 5.44 5.00 mg/kg EPA 6010b
Lead 4.74 3.00 mg/kg EPA 6010b
Laboratory ID:

Analyte Result Limit Units Method
T243630-21S59-2
Notes
Reporting
Sample ID:

Cobalt 2.47 2.00 mg/kg EPA 6010b
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 5 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
09/18/24 17:24Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
ResultAnalyte Limit Batch
Reporting
Prepared Analyzed Method Notes DilutionUnits
S3-1
T243630-01 (Soil)
SunStar Laboratories, Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"4.27 " " "" "Cobalt 2.00
"19.9 " " "" "Copper 5.00
"36.7 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 6 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"4.43 " " "" "Cobalt 2.00
"5.99 " " "" "Copper 5.00
"5.52 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 7 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b7.30 24I0091 09/06/24
09/13/24 mg/kg 1Antimony 4.00
"4.58 " " "" "Cobalt 2.00
"452 " " "" "Copper 5.00
"180 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 8 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"4.35 " " "" "Cobalt 2.00
"5.73 " " 09/13/24 " "Copper 5.00
ND "" 09/13/24 " ""Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 9 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"5.46 " " "" "Cobalt 2.00
"7.83 " " "" "Copper 5.00
"5.62 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 10 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"2.54 " " "" "Cobalt 2.00
"19.6 " " "" "Copper 5.00
ND "" "" ""Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 1 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b18.4 24I0091 09/06/24
09/13/24 mg/kg 1Antimony 4.00
"2.57 " " "" "Cobalt 2.00
"106 " " "" "Copper 5.00
"328 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 12 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b54.7 24I0091 09/06/24
09/13/24 mg/kg 1Antimony 4.00
"2.37 " " "" "Cobalt 2.00
"132 " " "" "Copper 5.00
"807 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 13 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/12/24
09/17/24 mg/kg 24I01461Antimony 4.00
ND "" "" ""Cobalt 2.00
"9.14 " " "" "Copper 5.00
"8.05 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 14 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"41.0 " " "" "Cobalt 2.00
"2130 " " 09/13/24 " "Copper 5.00
"46.5 " " 09/13/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 15 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"92.8 " " "" "Cobalt 2.00
"351 " " "" "Copper 5.00
"35.8 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 16 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b8.38 24I0091 09/06/24
09/13/24 mg/kg 1Antimony 4.00
"33.8 " " "" "Cobalt 2.00
"3180 " " "" "Copper 5.00
"58.3 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 17 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
EPA 6010b22.9 24I0091 09/06/24
09/13/24 mg/kg 1Antimony 4.00
"34.3 " " "" "Cobalt 2.00
"2520 " " "" "Copper 5.00
"63.6 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 18 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"2.66 " " "" "Cobalt 2.00
"16.2 " " "" "Copper 5.00
"23.9 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 19 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
ND "" "" ""Cobalt 2.00
"5.81 " " "" "Copper 5.00
"3.71 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 20 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
ND "" "" ""Cobalt 2.00
"6.21 " " 09/13/24 " "Copper 5.00
"6.03 " " 09/13/24 " "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 21 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"2.12 " " "" "Cobalt 2.00
"5.44 " " "" "Copper 5.00
"4.74 " " "" "Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 22 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

Metals by EPA 6010B
ND EPA 6010b09/06/24
09/13/24 mg/kg 24I00911Antimony 4.00
"2.47 " " "" "Cobalt 2.00
ND "" "" ""Copper 5.00
ND "" "" ""Lead 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 23 of 26 ends

Project:

Project Number:

Project Manager:

Reported:

Brusca Associates Inc.

PO Box 332 142-007
Joe Brusca
Pacific Street Property
09/18/24 17:24Roseville CA, 95661
25712 Commercentre Drive
Lake Forest, California 92630
949.297.5020 Phone
949.297.5027 Fax
Result Limit
Reporting
Units Level
Spike
Result
Source
%REC
%REC
Limits RPD
RPD
Limit Notes Analyte
Metals by EPA 6010B - Quality Control
SunStar Laboratories, Inc.

Batch 24I0091 - EPA 3050B
Blank (24I0091-BLK1) Prepared: 09/06/24 Analyzed: 09/13/24 Antimony mg/kgND 4.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
LCS (24I0091-BS1) Prepared: 09/06/24 Analyzed: 09/13/24 Antimony mg/kg106

4.00 100 2075-125106
Cobalt "98.4 2.00 100 2075-12598.4
Copper "106 5.00 100 2075-125106
Lead "103 3.00 100 80-120103
Matrix Spike (24I0091-MS1) Prepared: 09/06/24 Analyzed: 09/13/24 Source: T243630-01 Antimony mg/kg67.0 4.00 100 ND 20 QM-0775-12567.0
Cobalt "88.4 2.00 100 4.27 2075-12584.1
Copper "120 5.00 100 19.9 2075-125100
Lead "139 3.00 100 36.7 75-125102
Matrix Spike Dup (24I0091-MSD1) Prepared: 09/06/24 Analyzed: 09/13/24 Source: T243630-01 Antimony mg/kg66.6 4.00 100 ND 20 QM-0775-12566.6 0.599 Cobalt "90.2 2.00 100 4.27 2075-12585.9 2.02
Copper "123 5.00 100 19.9 2075-125103 2.14
Lead "142 3.00 100 36.7 2075-125105 2.26
Batch 24I0146 - EPA 3050B
Blank (24I0146-BLK1) Prepared: 09/12/24 Analyzed: 09/17/24 Antimony mg/kgND 4.00
Cobalt "ND 2.00
Copper "ND 5.00
Lead "ND 3.00
Joann Marroquin, Director of Operations
SunStar Laboratories, Inc. The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Page 24 of 26 ends

Rocklin City CouncilApril 8, 2025

Rocklin City Council
April 8, 2025