Agenda packet — San Mateo City Council, December 1, 2022 (part 4 of 6)

RMD ENVIRONMENTAL SOLUTIONS, INC.
• Underground storage tanks (USTs) were formerly located near the northeast corner of the property. The USTs were associated with two former gasoline service stations and were removed from the Site in the 1980’s and 1990’s.
• Petroleum hydrocarbons have historically been reported in soil and groundwater beneath the property.
• The Phase I ESA identified potential groundwater impacts from offsite sources and potential vapor encroachment as recognized environmental conditions (RECs). • The Phase I ESA identified soil impacts from prior on-Site operations as a gasoline service station as a historical REC.
• A diesel emergency generator is located in the southwest corner of the subsurface parking garage.
• Groundwater collection piping and associated trenches are located under the parking garage.

The piping is routed to a sand and oil interceptor which discharges to the storm drain. • The storm drain and sanitary sewer laterals enter the property near the east corner. • Groundwater was expected to flow in the northeast to east direction. Stabilized depth to water was expected to be approximately 28 feet below ground surface (bgs).

RMD proposed collection of soil and groundwater samples beneath the underground parking garage. With regards to soil vapor, RMD did not propose collecting soil vapor samples considering 1) the entire site will be excavated for the construction of a 2-level parking garage and 2) it is presumed that the parking garage will be installed with measures to mitigate vapor intrusion concerns (if present), including a waterproof membrane and fresh air intake/circulation.

SCOPE OF WORK
Eleven soil borings were completed in the underground parking garage between March 15th and March 18th, 2021. Borings were advanced to depths varying between 14 and 43 ft below the floor of the garage. The garage floor was estimated to be approximately 12 ft below ground surface. Drilling activities were conducted by Gregg Drilling (Gregg), a C-57 licensed contractor, under the oversight of RMD personnel. All work was performed under direction of a California licensed engineer. Sampling locations are shown on Figure 1.

Further details are provided as follows.

PRE-FIELD ACTIVITIES
Prior to initiating field work, RMD performed the following pre-field activities:
• Marked the proposed sampling locations for Underground Service Alert (USA); 648 of 1252
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RMD ENVIRONMENTAL SOLUTIONS, INC.
• Updated the Site-specific Health and Safety Plan (HASP) with task-specific job safety analysis (JSA) forms;
• Obtained drilling permits from the San Mateo County Environmental Health Services Groundwater Protection Program (SMCEH; Appendix A); and • Contracted with Subdynamic Locating, Inc., to perform an underground utility survey on March 12, 2021 to clear the proposed drilling locations of underground utilities and other possible subsurface obstructions.

SOIL BORINGS AND LOGGING
The eleven soil borings (SB-01 through SB-11) were advanced with a direct-push hydraulic dolly (Ramset) drill rig fitted with a Macro-Core® sampler. Each boring was cleared to 5 feet below surface using a hand auger to confirm the absence of shallow obstructions. During hand augering and soil coring at each borehole, soil was visually characterized and described using the Unified Soil Classification System (USCS). Soil samples were field screened for total volatile organic compounds (VOCs) using a handheld photoionization detector (PID).

Beneath the 8 inches of concrete and 6 inches of 3/4" gravel typically encountered in the borings, the site is underlain with clayey sand with gravel to approximately 5 to 9 feet below the surface of the parking garage. Soils beneath that consisted of silty and sandy clays with varying amounts of fine gravels to the maximum depths explored in each boring.

Groundwater was first encountered in boring SB-02 at 29.5 ft and in SB-11 at 40.5 ft below garage surface. Stabilized ground water was measured at 19.7 ft below garage surface in SB-02 and 16.8 ft below garage surface in SB-11. Groundwater was not encountered in the other borings.

Petroleum odors were not observed during drilling. No significant PID readings were measured during the investigation. The soil types and PID readings were recorded on boring logs (Appendix B).

SOIL SAMPLING
Soil samples were collected at each boring location during hand augering and direct-push drilling activities. Soil samples were collected from each boring as follows:
• At borings SB-01, SB-04 to SB-06, and SB-08, samples were collected at approximately

2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs; 649 of 1252
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RMD ENVIRONMENTAL SOLUTIONS, INC.
• At borings SB-02 samples were collected at approximately 2.5, 5.5, 8, 10, 12, 14, 16,18, 20, 22, 24, 26, 28, 30, and 32 feet bgs;
• At boring SB-03 samples were collected at approximately 2.5, 5.5, 8, 10, 12, 14, and 16 feet bgs;
• At borings SB-07 and SB-09 samples were collected at approximately 2.5, 5.5, 8, 10, 12, and 14 feet bgs;
• At borings SB-10 samples were collected at approximately 2.5, 5.5, 8, 10, 12, 14, 16,18, 20, 22, and 24 feet bgs; and
• At borings SB-02 samples were collected at approximately 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, and 42 feet bgs.

Soil samples were contained in acetate liners with Teflon tape or collected into laboratorysupplied containers. Samples were then labeled, placed in a chilled cooler, and transported under standard chain-of-custody (COC) protocol to Pace Analytical (Pace), a State-certified laboratory, for the following analysis:
• One composite sample comprised of all samples collected from each boring was analyzed for the following:
• Total petroleum hydrocarbons (TPH) as gasoline (TPHg), TPH as diesel (TPHd), and TPH as motor oil (TPHmo) using USEPA Method 8015;
• VOCs using USEPA Method 8260B; and
• California Administrative Manual (CAM)-17 Metals using USEPA Method 6020. • Based on these composite sample results, the soluble threshold limit concentration (STLC) extraction test for chromium was also conducted on the composite samples from SB-01 to SB-09, and SB-11, and Toxicity Characteristic Leaching Procedure (TCLP) testing for chromium was performed on a composite from boring SB-10.

The analysis of composite samples (versus discrete samples) was selected to plan for soil management and expected soil offhaul during excavation during construction of the subterranean parking garage. Laboratory analysis of discrete samples was not completed or determined to be necessary based on field observations and composite sample analytical results.
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RMD ENVIRONMENTAL SOLUTIONS, INC.

GRAB GROUNDWATER SAMPLING
The soil borings were advanced to approximately 14 to 43 feet below surface. Once each boring reached the target depth, temporary PVC casing with 10 feet of 0.010-inch machined-slot screen was installed to facilitate grab groundwater sample collection.

Grab groundwater samples were collected at borings SB-02 and SB-1 using a clean, stainless steel bailer and were transferred directly into laboratory-supplied sample containers. Borings SB-01, SB-04 to SB-7, SB-09, and SB-10 were left open for at least 24 hrs to allow for groundwater infiltration but remained dry. Grab groundwater samples were labeled, placed in a chilled cooler, and transported under standard COC protocol to Pace for analysis of the following:
• TPHg, TPHd, and TPHmo using USEPA Method 8015; and
• VOCs using USEPA Method 8260B.

INVESTIGATION RESULTS
SOIL
TPH and VOC soil analytical results are summarized in Table 1. Very low concentrations were reported in at least one boring of TPHg, TPHd, TPHmo, toluene, total xylenes, tetrachloroethene, 2-butanone, and 1,2,4-trimethylbenzene. None of the concentrations were near levels which would characterize the soil as hazardous waste. San Francisco Bay Regional Water Quality Control Board (SFBRWQCB) Tier 1 Environmental Screening Levels (ESLs)1 for detected chemicals are included on Table 1 for reference. Soil analytical results are at least an order of magnitude less than the respective Tier 1 ESL, which represents the SFBRWQCB’s most stringent screening level to be protective of human health and the environment.

Metal analytical results are presented in Table 2. For reference, Table 2 also includes Tier 1 ESLs, Bay Area background levels of metals in soil (Background Levels)2, and thresholds for hazardous waste characterization. Key observations are summarized as follows:
• Arsenic was detected above the Tier 1 ESL however was below the published background in all seven samples.
1 San Francisco Bay Regional Water Quality Control Board. 2009. Tier 1 Environmental Screening Levels. 2019 Interim Final Rev. 2.
2 Lawrence Berkeley National Laboratory. 2009. Analysis of Background Distributions of Metals in Soil at Lawrence Berkeley National Laboratory, Table 5. Revised April. For arsenic, the background concentration was based on Establishing Background Arsenic in Soil of the Urbanized San Francisco Bay Region (Duvergé, 2011). 651 of 1252
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RMD ENVIRONMENTAL SOLUTIONS, INC.
• Vanadium was detected above the Tier 1 ESL however was below the published background level in all seven samples.
• Chromium exceeded the threshold to require STLC in all composite samples, except for SB-03 and exceeded the threshold to require TCLP Analysis in composite sample SB-10.

Based on this data, the STLC extraction test for chromium was conducted on composite soil samples SB-01 to SB-09, and SB-11, and the TCLP extraction test was performed on composite sample SB-10. Results are included on Table 3 and indicate non-hazardous classification for soil disposal.
• No additional metals were detected above the Tier 1 ESLs, background levels, or hazardous waste criteria thresholds.

Laboratory analytical reports are included in Appendix D.

GROUNDWATER
Table 2 and Figure 2 summarize the grab groundwater analytical results collected from SB-02 and SB-11. The only constituents detected in the samples were TPHd, TPHmo, benzene, and chloroform. It is noted that the laboratory included “J” flags on the results for sample SB-2. The Laboratory Control Sample (LCS) data are within method specified levels and the presence of “J” flags is not a concern with regards to the accuracy of the data.

For reference, maximum contaminants levels for drinking water and Tier 1 ESLs (which consider vapor intrusion screening levels) are also included on Table 1. TPHd exceeded the Tier 1 ESL (which is based on odor/nuisance) in sample SB-11 and chloroform exceeded the Tier 1 ESL (which is based on vapor intrusion) in sample SB-02. As further discussion below, neither of these detections are expected to drive active remediation however the presence of TPHd may trigger additional investigation by a regulatory agency.

The laboratory analytical report is included in Appendix D.

INVESTIGATION DERIVED WASTE MANAGEMENT
Investigation derived waste (IDW) consisted of soil cuttings. IDW was stored on-Site in properly labeled 55-gallon drums. Following waste characterization profiling, IDW will be disposed of in accordance with applicable laws and regulations.
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RMD ENVIRONMENTAL SOLUTIONS, INC.

DISCUSSION OF KEY RESULTS AND CONCLUSIONS
TPH, VOCs, and metals were not present in composite soil samples at concentrations that exceed regulatory action levels or background levels. With regards to soil disposal and planning for Site grading, data indicated that soil beneath the Site does not fall under hazardous waste classification.

Elevated concentrations of diesel hydrocarbons (TPHd) are present in groundwater in SB-11 located along the southeast wall of the underground parking garage. Chloroform was detected in the groundwater boring at the northwest wall of the garage. Other chlorinated VOCs were not present in groundwater at levels that would require further investigation or mitigation.

In summary, based on the sampling conducted:
• Shallow soil exported off-Site during Site grading is generally expected to meet acceptable criteria for non-hazardous waste characterization. However, given the presence of petroleum constituents in groundwater it would be prudent for Lane to include a contingency budget for localized soil “hot spots” which may require Class II and/or Class I offsite disposal.
• The presence of low concentrations of chloroform in groundwater at location SB-02 is not expected to drive further action. The concentration of chloroform reported is relatively low and is likely attributed to potable water (as a result of chlorination of organic matter present in raw water supplies).
• The presence of TPHd in SB-11 could be from a number of sources, including the former fuel tanks onsite, the oil/water separator and associated piping, or the diesel emergency generator in the southwest portion of the garage. While the concentration reported was relatively low, a regulatory agency may require Lane to delineate or verify the source of the TPHd reported in groundwater. It is RMD’s opinion that given the absence of benzene, naphthalene, or other VOCs in groundwater, that active remediation of TPHd would not be required. However, a soil and groundwater management plan would be required by a regulatory agency during property redevelopment. • In the event that dewatering occurs during property redevelopment, carbon treatment of groundwater would likely be required due to the presence of TPHd prior to discharge to the storm or sanitary sewer drains.
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RMD ENVIRONMENTAL SOLUTIONS, INC.

CLOSING
If you have any questions or comments, please do not hesitate to contact Ms. Kirsten Duey at (925) 683-8177 or [email protected].

Sincerely,
RMD ENVIRONMENTAL SOLUTIONS, INC.

Erin Male Owen Ratchye, P.E.

Project Geologist Senior Engineer
Kirsten Duey
Principal Engineer
ATTACHMENTS:

Figure 1 – Site Location Map
Figure 2 – Site Plan
Figure 3 – TPH and VOC Concentrations in Groundwater
Table 1 – Summary of Soil Analytical Results – TPH and Detected VOCs Table 2 – Summary of Soil Analytical Results – Metals
Table 3 – Summary of Grab Groundwater Analytical Results – TPHg and Detected VOCs Appendix A – Drilling Permits
Appendix B – Boring Logs
Appendix C – Laboratory Analytical Reports
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RMD ENVIRONMENTAL SOLUTIONS, INC.

LIMITATIONS
This document was prepared for the exclusive use of the Client for the express purpose of complying with a regulatory directive for environmental investigation or restoration. RMD has used professional judgment to present the findings and opinions of a scientific and technical nature. The opinions expressed are based on the conditions of the Site existing at the time of the field investigation, current regulatory requirements, and any specified assumptions. The presented findings and recommendations in this document are intended to be taken in their entirety to assist the Client in applying their own professional judgment in making decisions related to the property. No warranty or guarantee, whether expressed or implied, is made with respect to the data or the reported findings, observations, conclusions, and recommendations. 655 of 1252

FIGURES
656 of 1252
N
222 EAST 4TH AVENUE

SAN MATEO, CALIFORNIA
PROJECT NO. DATE DR.BY: APP. BY:
01-LP-001 05/2021 EC EM
FIGURE
SCALE: 1" = 100' 1
100

SOIL BORING AND

GRAB GROUNDWATER

SAMPLE LOCATION MAP
Property Boundary
Soil Boring and Grab
Groundwater Sample Location
Soil Boring Location
0 200
Note: All soil borings are located beneath an
underground parking garage
LEGEND
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N
222 EAST 4TH AVENUE

SAN MATEO, CALIFORNIA
PROJECT NO. DATE DR.BY: APP. BY:
01-LP-001 05/2021 EC EM
FIGURE
SCALE: 1" = 100' 2
100
SUMMARY OF TPH AND VOCs

IN GROUNDWATER
MARCH 2021
Property Boundary
Soil Boring and Grab
Groundwater Sample Location
Soil Boring Location
Not detected above listed
laboratory reporting limits
Analyte concentration in
micrograms per liter (ug/L)
Shaded concentration exceeds
Tier 1 Environmental Screeening
Total Petroleum
Hydrocarbons as Gasoline
Total Petroleum
Hydrocarbons as Diesel
Total Petroleum
Hydrocarbons as Motor Oil
0 200
TPHg
TPHd
TPHmo
ND<100
367
353
Note: All soil borings are located beneath an
underground parking garage
LEGEND
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TABLES
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Table 1
Summary of Soil Analytical Results - TPH and Detected VOCs 222 East 4th Avenue
San Mateo, California

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Sample Depth TPHg TPHd TPHmo Toluene Total Xylenes Tetrachloroethene 2-Butanone (MEK) 1,2,4-Trimethyl benzene
(feet bgs) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) 100 260 1,600 3.2 2.1 0.08 6.1 --
- - - - - - - - - - 14 4,000 --
SB-01-COMP COMP 3/15/2021 ND<0.122 1.52 J ND<4.89 ND<0.00723 ND<0.00940 ND<0.00361 0.124 B J ND<0.00723 SB-02-COMP COMP 3/17/2021 ND<0.114 1.98 J ND<4.55 0.00172 J ND<0.00828 ND<0.00318 0.109 B J ND<0.00637 SB-03-COMP COMP 3/18/2021 ND<0.120 1.17 J 2.06 J ND<0.00697 0.00223 B J ND<0.00348 0.164 B 0.00443 B J SB-04-COMP COMP 3/15/2021 ND<0.122 ND<4.88 ND<4.88 ND<0.00719 ND<0.00935 0.00187 J 0.111 B J ND<0.00719 SB-05-COMP COMP 3/15/2021 ND<0.124 2.02 J ND<4.96 ND<0.00740 ND<0.00962 0.00141 J 0.110 B J ND<0.00740 SB-06-COMP COMP 3/16/2021 ND<0.124 0.933 J ND<4.96 ND<0.00741 0.00261 J 0.00423 0.142 B J 0.00385 J SB-07-COMP COMP 3/17/2021 ND<0.121 1.50 J ND<4.83 0.00252 J ND<0.00921 ND<0.00354 0.0988 B J ND<0.00708 SB-08-COMP COMP 3/18/2021 0.0473 J 4.18 J 11.1 J ND<0.00754 J3 0.00173 B J J3 ND<0.00377 J3 0.152 B 0.00347 B J SB-09-COMP COMP 3/16/2021 ND<0.115 1.12 J ND<4.60 ND<0.00651 ND<0.00846 0.00349 0.150 B ND<0.00651 SB-10-COMP COMP 3/16/2021 ND<0.113 1.12 J ND<4.54 ND<0.00635 ND<0.00825 0.00352 0.119 B J ND<0.00635 SB-11-COMP COMP 3/17/2021 ND<0.124 2.29 J ND<4.96 0.00217 J ND<0.00961 ND<0.00370 0.110 B J ND<0.00739 Notes:

Samples for VOCs analyzed using USEPA Method 8260B and samples for TPH analyzed using USEPA Method 8015. SFBRWQCB = San Francisco Bay Regional Water Quality Control Board.

SB-01-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. ESL = Environmental Screening Level.

SB-02-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16,18, 20, 22, 24, 26, 28, 30, and 32 feet bgs. B = The same analyte is found in the associated blank.

SB-03-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, and 16 feet bgs. J = Estimated value.

SB-04-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. J3 = The associated batch QC was outside the established quality control range for precision.

SB-05-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. -- = Not analyzed.

SB-06-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. ND<0.010 = Not detected above the noted laboratory reporting limit.

SB-07-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, and 14 feet bgs. bgs = Below ground surface.

SB-08-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. mg/Kg = Milligrams per kilogram.

SB-09-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, and 14 feet bgs. TPHg = Total Petroleum Hydrocarbons Gasoline range (C5-C12) SB-10-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16,18, 20, 22, and 24 feet bgs. TPHd = Total Petroleum Hydrocarbons Diesel range (C12-C22) SB-11-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, and 42 feet bgs. TPHmo = Total Petroleum Hydrocarbons Motor Oil range (C22-C40) Note 1 Tier 1 SFBRWQCB Environmental Screening Levels. 2019 Interim Final (Rev. 2). VOCs = Volatile Organic Compounds.

Boring ID Date
Threshold to Require TCLP Analysis
Tier 1 ESLsNote 1
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Table 2
Summary of Soil Analytical Results - Metals
222 East 4th Avenue
San Mateo, California

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Sample
Depth Antimony Arsenic Note 4 Barium Beryllium Cadmium Chromium Note 3 Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium VanadiumNote 4 Zinc Chromium -
STLC
Extraction
Chromium -
TCLP
Extraction
(feet bgs) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (µg/L) (mg/L) 11 0.067 390 5.0 1.9 160 23 180 32 13 6.9 86 2.4 25 0.78 18 340 -- -- <6.0 11 410 1.0 5.6 120 25 63 24 0.42 4.8 272 4.9 2.9 10 90 140 -- -- 150 50 1,000 8.0 10 50 800 250 50 2.0 3,500 200 10 50 70 240 2,500 -- -- NV 100 2,000 NV 20 100 NV NV 100 4.0 NV NV 20 100 NV NV NV -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5,000 5.0 SB-01-COMP COMP 3/15/2021 ND<2.45 ND<2.45 131 0.539 0.504 J 96.6 23.2 39.8 6.25 0.0504 ND<0.611 154 1.49 J ND<1.22 ND<2.45 66.4 48.8 137 NA SB-02-COMP COMP 3/17/2021 ND<2.27 2.28 108 0.391 0.478 J 93.5 J6 21.3 35.1 5.77 0.0385 J ND<0.568 125 J6 1.65 J ND<1.14 ND<2.27 72.7 J6 51.6 190 O1 NA SB-03-COMP COMP 3/18/2021 ND<2.39 0.880 J 92.6 0.285 0.117 J 46.1 15.0 17.4 5.10 0.0275 J ND<0.598 61.0 ND<2.39 ND<1.20 ND<2.39 36.2 32.7 245 NA SB-04-COMP COMP 3/15/2021 ND<2.44 1.44 J 109 0.417 0.398 J 75.8 16.8 26.4 6.33 0.0404 J ND<0.610 90.6 2.08 J ND<1.22 ND<2.44 57.8 42.8 166 NA SB-05-COMP COMP 3/15/2021 ND<2.48 1.76 J 135 0.486 0.520 J 99.6 23.7 36.1 7.12 0.0456 J ND<0.620 152 1.65 J ND<1.24 ND<2.48 66.8 52.6 289 NA SB-06-COMP COMP 3/16/2021 ND<2.48 ND<2.48 107 0.377 0.324 J 73.7 15.9 24.5 5.43 0.0693 0.371 J 84.2 ND<2.48 ND<1.24 ND<2.48 50.5 34.5 345 NA SB-07-COMP COMP 3/17/2021 ND<2.42 1.83 J 105 0.319 0.435 J 87.3 19.1 32.6 4.49 0.0398 J ND<0.604 104 1.90 J ND<1.21 ND<2.42 62.3 48.6 266 NA SB-08-COMP COMP 3/18/2021 ND<2.51 ND<2.51 121 0.471 0.152 J 65.3 19.2 24.3 6.78 0.0377 J ND<0.627 131 J6 ND<2.51 ND<1.25 ND<2.51 43.5 41.6 143 NA SB-09-COMP COMP 3/16/2021 ND<2.3 1.26 J 135 0.600 0.491 J 96.8 25.8 37.4 7.68 0.0859 ND<0.575 156 2.03 J ND<1.15 ND<2.3 61.4 44.3 85.8 J NA SB-10-COMP COMP 3/16/2021 ND<2.27 1.44 J 143 0.539 0.488 J 117 20.5 45.8 7.60 0.110 ND<0.567 171 2.19 J ND<1.13 ND<2.27 70.8 51.0 NA ND<0.100 SB-11-COMP COMP 3/17/2021 ND<2.48 ND<2.48 115 0.355 0.391 J 71.2 17.0 23.2 5.17 0.0355 J 0.139 J 98.5 1.07 J ND<1.24 ND<2.48 43.0 41.1 615 NA Notes:

Samples analyzed using USEPA Method 6010. bgs = Below ground surface.

SB-01-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. SFBRWQCB = San Francisco Bay Regional Water Quality Control Board.

SB-02-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16,18, 20, 22, 24, 26, 28, 30, and 32 feet bgs. ESL = Environmental Screening Level.

SB-03-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, and 16 feet bgs. STLC = Soluble Threshold Limit Concentration.

SB-04-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. NA = Not analyzed SB-05-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. ND<0.50 = Not detected above the noted laboratory reporting limit.

SB-06-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. mg/Kg = Milligrams per kilogram.

SB-07-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, and 14 feet bgs. STLC = Soluble Threshold Limit Concentration.

SB-08-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, and 26 feet bgs. J = Estimated value.

SB-09-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, and 14 feet bgs. J6 = The sample matrix interfered with the ability to make any accurate determination; spike value is low.

SB-10-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16,18, 20, 22, and 24 feet bgs.

SB-11-COMP = Composite of soil samples collected at 2.5, 5.5, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, and 42 feet bgs.

Italicized and emboldened values exceed the Commercial ESL.

Green shaded values exceed the Tier 1 ESL however are less than the Bay Area Background Level.

Values shown in red font exceed the threshold which triggers STLC analysis for waste characterization.

Values shown in blue font exceed the threshold which triggers TCLP analysis for waste characterization.

Note 1 SFRWQCB Tier 1 Environmental Screening Levels. 2019 Interim Final Rev. 2.

Note 3 ESL value shown is for total chromium.

Note 4 Vanadium and Arsenic concentrations were compared to the published background values for soil in the Bay Area, instead of ESLs O1 = The analyte failed the method required serial dilution test and/or subsequent post-spike criteria.

These failures indicate matrix interference.
matrix interference.

Note 2 Lawrence Berkeley National Laboratory, Analysis of Background Distributions of Metals in Soil at Lawrence Berkeley National Laboratory, Table 5. Revised April 2009.

For arsenic, the background concentration was based on the document titled Establishing Background Arsenic in Soil of the Urbanized San Francisco Bay Area (Duverge, 2011) Threshold to Require TCLP Analysis
STLC/TCLP Hazardous Waste Classification Limit
Boring ID Date
Tier 1 ESLs Note 1
Bay Area Background Metals in Soil Note 2
Threshold to Require STLC Analysis
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Table 3
Summary of Grab Groundwater Analytical Results - TPH and Detected VOCs and PCE 222 East 4th Avenue
San Mateo, California

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Boring ID TPHg TPHd Note 3 TPHmo Note 4 PCE Benzene Chloroform (feet bgs) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L)
760 200 NV 5.0 1.0 80
100 100 NV 0.64 0.4 0.81
SB-02 22 - 32 3/18/2021 ND<100 ND<100 245.2 J <0.5 0.111 J J3 J6 3.67 J3 J6 SB-11 33 - 43 3/18/2021 ND<100 353 367 <0.5 ND<0.500 0.571 Notes:

Yellow shaded values exceed the Tier 1 ESL.

MCLs = Maximum Contaminant Levels for drinking water.

Note 1 MCL Priority lists all allowable MCLs. If no MCLs are available, the lower of the cancer, non-cancer, or tap water direct exposure level is listed.

Note 2 Tier 1 SFBRWQCB Environmental Screening Levels. 2019 Interim Final (Rev. 2).

Note 3 TPHd data shown represents laboratory results for carbon range C12-C22 hydrocarbons.

Note 4 TPHmo data shown represents laboratory results for carbon range C22-C40 hydrocarbons.

SFBRWQCB ESL = San Francisco Bay Regional Water Quality Control Board VOCs = Volatile Organic Compounds.

TPHg = Total Petroleum Hydrocarbons as gasoline.

TPHd = Total Petroleum Hydrocarbons as diesel.

TPHmo = Total Petroleum Hydrocarbons as motor oil.

PCE = Tetrachloroethene.
µg/L = Micrograms per liter.

ND<0.500 = Not detected above noted laboratory reporting limit.

NV = No Value Established.

J = Estimated value.

J3 = The associated batch QC was outside the established quality control range for precision.

J6 = The sample matrix interfered with the ability to make any accurate determination; spike value is low.

MCL Priority Note 1
Tier 1 ESL Note 2
Boring ID Date Sampled
662 of 1252

APPENDIX A
Drilling Permits
663 of 1252
664 of 1252
665 of 1252
666 of 1252
667 of 1252
668 of 1252
669 of 1252
670 of 1252
671 of 1252
672 of 1252
673 of 1252

APPENDIX B
Boring Logs
674 of 1252
BORING/WELL ID:

SB-01
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy 11:11

0.0 11:52

0.0 11:47 0.0

0.0 12:05

0.0 12:03
12:22 0.0

0.0 12:16
START DATE / TIME: 3/15/21 @ 12:35, grouted 3/16/21@15:30 TOTAL BORING DEPTH(S):

Logged By: E. Male
3/15/21 @ 11:00
DRY
26 ft below garage surface
CONTRACTOR AND EQUIPMENT:

Macrocore
Gregg Drilling / Limited Access Ramset Dolly Rig
Lane Partners 222 E 4th Ave, San Mateo
Underground parking garage of Draeger's Market
SAMPLING METHOD:

SURFACE ELEVATION: ~12 ft below ground surface
PROJECT NAME AND ADDRESS:

BORING LOCATION (AT SITE):

FIRST WATER (BGS):

Borehole Construction Details

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Depth (feet)
1 0 8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) Clayey SAND with gravel (SC), dark yellowish brown (10yr 3/6), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (30, 40, 10, 20).

Page 1 of 2 ends

11 20
18 16
17 19
13 Lean CLAY with sand (CL), yellowish brown (10yr 5/6), damp, very stiff, medium plasticity, fine sand, rare fine gravels, no odor, (2, 15, 20, 63).
-softens @ 19 ft, medium stiffness
3 8
9 7
15 10
No Recovery 13 to 17 ft below garage surface
Clayey SAND with gravel (SC), light brownish gray (10yr 6/2), damp, loose, non-plastic, fine to medium sand, fine gravels, no odor, (25, 40, 10, 25).

Lean CLAY with sand (CL), yellowish brown (10yr 5/6), damp, medium stiff, low plasticity, fine to medium sand, occasional fine gravels, no odor, (5, 20, 25, 55). 2 14
12 5
6 Hand Auger to 5 ft
4 675 of 1252
BORING/WELL ID:

SB-01
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy 12:33 0.0

0.0 12:31

0.0 12:45
Logged By: E. Male
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market 28 27
3/15/21 @ 12:35, grouted 3/16/21@15:30
SURFACE ELEVATION: ~12 ft below ground surface
17 feet bgs.

Well Construction Details
START DATE / TIME: 3/15/21 @ 11:00
FIRST WATER (BGS):
30 32
37 Depth (feet)
TOTAL BORING DEPTH(S): 26 ft below garage surface

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) 35 36
31 25
26 33
34 29
21 Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/16/21 @15:30.

End of boring (refusal) at 26 feet below garage surface, 3/15/21 @ 12:35.

Install temporary 0.010-inch slotted screen 16-26 feet below garage surface. 23 24
(as above) Lean CLAY with sand (CL), yellowish brown (10yr 5/6), damp, medium stiff, medium plasticity, fine sand, rare fine gravels, no odor, (2, 15, 20, 63).

Lean CLAY with sand (CL), dark yellowish brown, (10yr 4/4), moist, stiff, medium plasticity, no odor, trace fine gravels, (0, 20, 5, 75).
22

Page 2 of 2 ends

38 39
40 20
676 of 1252
BORING/WELL ID:

SB-02
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: 19.7 ft below garage surface
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 32 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 14:30

0.0 15:05

0.0 15:02

0.0 15:15

0.0 15:13

0.0 15:30

0.0 15:23

0.0 15:44

0.0 15:42
Logged By: E. Male
8 9
7 2
8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 3 START DATE / TIME: 3/17/21 @ 16:00, grouted 3/18/21 @ ~16:40 TOTAL BORING DEPTH(S):

Borehole Construction Details

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Sandy CLAY (CL), yellowish brown (10yr 5/4), dry-damp, medium stiff, low plasticity, fine to medium sand, fine to medium gravels, no odor, (5, 30, 20, 45).

Hand Auger to 5 ft
4 0 Depth (feet)
3/17/21 @ ~14:00

29.5 ft below garage surface
32 ft below garage surface
CONTRACTOR AND EQUIPMENT:

Macrocore
Gregg Drilling / Limited Access Ramset Dolly Rig
Lane Partners 222 E 4th Ave, San Mateo
Underground parking garage of Draeger's Market
SAMPLING METHOD:

SURFACE ELEVATION: ~12 ft below ground surface
PROJECT NAME AND ADDRESS:

BORING LOCATION (AT SITE):

FIRST WATER (BGS):

Page 1 of 2 ends

11 20
18 16
17 19
13 Lean CLAY with sand (CL), strong brown (7.5yr 4/6), damp, medium stiff, low plasticity, fine to medium sand, fine to medium gravels, no odor, (5, 25, 20, 50).

Lean CLAY with sand (CL), brown (10yr 5/3), damp, very stiff, low plasticity, fine sand, no odor, (5, 20, 20, 55).

Clayey SAND with gravel (SC), yellowish brown (10yr 5/8), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (25, 35, 15, 25). 15 10
1 14
12 5
6 677 of 1252
BORING/WELL ID:

SB-02
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: 19.7 ft below garage surface
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 32 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 15:54

0.0 15:53

0.0 16:09

0.0 16:06

0.0 16:21

0.0 16:18
Logged By: E. Male
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig Silty CLAY (CL), yellowish brown (10yr 5/6), damp, soft, low-medium plasticity, fine sand, no odor, (0, 10, 30, 60).

Silty CLAY with sand (CL), dark yellowish brown (10yr 4/6), damp, medium stiff, low plasticity, fine to medium sand, fine with rare medium gravels, no odor, (5, 20, 25, 50).

Lean CLAY (CL), yellowish brown (10yr 5/6), damp, soft, low-medium plasticity, fine sand, no odor, (0, 10, 30, 60).

Lean CLAY with sand (CL), dark yellowish brown (10yr 4/6), damp, medium stiff, low plasticity, fine to medium sand, fine with rare medium gravels, no odor, (5, 20, 25, 50).

Lean CLAY (CL), yellowish brown (10yr 5/6), damp to moist, stiff, low to medium plasticity, fine sand, rare medium gravels, no odor, (0, 10, 30, 60).

Sandy CLAY (CL), yellowish brown (10yr 5/6), very moist (moisture decreases with depth), soft, low to medium plasticity, fine sand, rare medium gravels, no odor, (10, 25, 20, 45).

SAMPLING METHOD: Macrocore
21 PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market 28 27
3/17/21 @ 16:00, grouted 3/18/21 @ ~16:40
SURFACE ELEVATION: ~12 ft below ground surface

29.5 ft below garage surface
Well Construction Details
START DATE / TIME: 3/17/21 @ ~14:00
FIRST WATER (BGS):
30 32
37 Depth (feet)
TOTAL BORING DEPTH(S): 32 ft below garage surface

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) 35 36
31 25
26 33
34 29
Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40.

End of boring at 32 feet below garage surface, 3/17/21 @ 16:00.

Install temporary 0.010-inch slotted screen 22-32 feet below garage surface. 23 24
22

Page 2 of 2 ends

38 39
40 20
678 of 1252
BORING/WELL ID:

SB-03
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 16 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 8:05

0.0 8:43

0.0 8:39

0.0 8:53
8:56

0.0 9:12

0.0 9:07
End of boring (refusal) at 16 feet below garage surface, 3/18/21 @ 9:00.

Install temporary 0.010-inch slotted screen 6-16 feet below garage surface.

Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40.

Sandy lean CLAY (CL), yellowish brown (10yr 5/6), damp, medium stiff, low plasticity, fine to medium sand, fine gravels, no odor, (10, 25, 15, 50).

Lean CLAY (CL), yellowish brown (10yr 5/6), damp, very stiff, low plasticity, fine sand, rare fine gravels, no odor, (2, 10, 15, 73).

Lean CLAY with sand (CL), dark brown (7.5yr 3/4), damp, stiff, low plasticity, fine sand, rare fine gravels, no odor, (3, 15, 20, 62).
10 11
19 20

Page 1 of 1 ends

16 17
18 12
13 14
15 8
9 3
6 4
5 Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Borehole Construction Details Hand Auger to 5 ft
0 8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 1 Clayey SAND with gravel (SC), brown (10yr 4/3), damp, loose, non-plastic, fine to coarse sand, fine to medium gravels, no odor, (20, 35, 15, 30).
2 7
3/18/21 @ 9:00, grouted 3/18/21 @ ~16:40
FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface
TOTAL BORING DEPTH(S): 16 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/18/21 @ ~8:00
Logged By: E. Male
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market 679 of 1252
BORING/WELL ID:

SB-04
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26.5 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 13:59
14:39

0.0 14:26

0.0 14:50

0.0 14:52

0.0 15:00

0.0 14:57

0.0 15:14
15:11 0.0
Logged By: E. Male
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market TOTAL BORING DEPTH(S): 26.5 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/15/21 @ ~13:30 3/15/21 @ 15:30, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

Page 1 of 2 ends

Clayey SAND with gravel (SC), dark yellow-brown (10yr 3/6), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (30, 40, 10, 25).

Sandy CLAY with gravel (CL), brownish yellow (10yr 6/8), damp, medium stiff, low plasticity, fine to medium sand, fine to medium gravels, no odor, (20, 30, 20, 30).

Sandy lean CLAY (CL), strong brown (7.5yr 4/6), damp, very stiff, low-med plasticity, fine sand, fine gravels, no odor, (10, 20, 20, 50).
17 18 Lean CLAY with sand (CL), yellowish brown (10yr 5/8), damp, medium stiff, low plasticity, fine sand, rare fine gravels, no odor, (2, 15, 23, 60).
19 20
14 15
680 of 1252
BORING/WELL ID:

SB-04
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26.5 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 15:28

0.0 15:23

0.0 15:42
Logged By: E. Male
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market TOTAL BORING DEPTH(S): 26.5 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/15/21 @ ~13:30 3/15/21 @ 15:30, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Well Construction Details 20 21
27 22
23 24
25 29
30 34
31 32

Page 2 of 2 ends

Sandy lean CLAY (CL), strong brown (7.5yr 4/6), damp, very stiff, low-med plasticity, fine sand, fine gravels, no odor, (10, 20, 20, 50).

Lean CLAY with sand (CL), yellowish brown (10yr 5/6), damp, medium stiff, low plasticity, fine to medium sand, fine with rare medium gravels, no odor, (5, 20, 25, 50). 38 39
40 35
36 37
4" lens of: lean CLAY with sand (CL), yellowish brown (10yr 5/6), moist, soft, low plasticity, fine sand, (2, 15, 20, 63).
33 Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40.

End of boring (refusal) at 26.5 feet below garage surface, 3/15/21 @ 15:30.

Install temporary 0.010-inch slotted screen 16.5-26.5 feet below garage surface. 28 26
681 of 1252
BORING/WELL ID:

SB-05
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy 1 to 2 inches of Concrete
8:45

0.0 9:26 0.0
9:25

0.0 9:36

0.0 9:34
9:51

0.0 10:03

0.0 9:59
10:17

Page 1 of 2 ends

17 18
19 20
16 12
13 14
15 9
10 11
5 7
8 SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Borehole Construction Details FIRST WATER (BGS): DRY
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/15/21 @ 8:15
TOTAL BORING DEPTH(S):
3 6
Hand Auger to 5 ft
0 2
Lean CLAY with sand (CL), brownish yellow (10yr 5/4), damp, stiff, low to medium plasticity, fine sand, no odor, (0, 15, 10, 75).

Sandy lean CLAY with gravel (CL), brownish yellow (10yr 6/6), damp, stiff, low plasticity, fine to medium sand, fine gravels, no odor, (15, 25, 10, 50).

Lean CLAY with sand (CL), brownish yellow (10yr 6/6), damp, medium stiff, low plasticity, fine sand, fine gravel, no odor, (5, 15, 15, 65).

Lean CLAY with sand (CL), yellowish brown (10yr 5/8), damp (slight increase in moisture with depth), soft, low to medium plasticity, fine sand, rare fine gravels, no odor, (3, 15, 15, 67).

Logged By: E. Male
26 ft below garage surface
3/15/21 @ 10:35, grouted 3/16/21 @ ~15:30
8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 1 Clayey SAND with gravel (SC), dark yellowish brown (10yr 3/6), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (30, 40, 10, 20). 4 682 of 1252
BORING/WELL ID:

SB-05
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 10:24

0.0 10:39

0.0 10:46
33 26
37

Page 2 of 2 ends

38 39
40 29
30 28
End of boring at 26 feet below garage surface, 3/15/21 @ 10:35. 27 22
23 24
25 Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/16/21 @ ~15:30.

Install temporary 0.010-inch slotted screen 16-26 feet below garage surface. 20 21
34 31
32 35
36 SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Well Construction Details PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market Logged By: E. Male Sandy lean CLAY (CL), brownish yellow (10yr 6/6), damp, very stiff, low-med plasticity, fine sand, fine gravels, no odor, (5, 25, 10, 60).

Sandy lean CLAY (CL), yellowish brown (10yr 5/6), moist, soft, medium plasticity, fine sand, rare fine gravels, (2, 15, 20, 63).

TOTAL BORING DEPTH(S): 26 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/15/21 @ 8:15 3/15/21 @ 10:35, grouted 3/16/21 @ ~15:30 FIRST WATER (BGS): DRY
683 of 1252
BORING/WELL ID:

SB-06
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy 7:52 0.3
8:37

0.0 8:35

0.0 8:55

0.0 8:52

0.0 9:02

0.0 9:25
9:22 0.0
9:50 0.0
Clayey SAND with gravel (SC), yellowish brown (10yr 5/8), damp, loose, non-plastic, fine to coarse sand, fine to medium gravels, no odor, (25, 35, 15, 25).

Clayey SAND with gravel (SC), very pale brown (10yr 7/3), damp, medium stiff, non-plastic, fine to coarse sand, fine to coarse (up to 2") gravels, no odor, (15, 40, 15, 30).

Sandy lean CLAY with gravel (CL), strong brown (7.5yr 4/6), damp, medium stiff, low plasticity, fine to coarse sand, fine gravels (rare 2" gravel), no odor, (20, 25, 15, 40).

Lean CLAY with sand (CL), light brown (10yr 6/3), damp, medium stiff, low plasticity, fine sand, no odor, (2, 15, 23, 60).

Hand Auger to 5 ft
0 8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 1 2
7 10
Logged By: E. Male
TOTAL BORING DEPTH(S): 26 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/16/21 @ 7:45 3/16/21 @ 9:55, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Borehole Construction Details 3 6
4 5
8 9
11 16
12 13
14 15

Page 1 of 2 ends

17 18
19 20
684 of 1252
BORING/WELL ID:

SB-06
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy 10:01

0.0 9:57
Logged By: E. Male
Install temporary 0.010-inch slotted screen 16-26 feet below garage surface.

Rock Block Sampler, No Recovery 20 to 23 ft below garage surface Lean CLAY with sand (CL), yellowish brown (10yr 5/6), damp, medium stiff, low plasticity, fine to medium sand, fine with rare medium gravels, no odor, (5, 20, 25, 50).

PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market TOTAL BORING DEPTH(S): 26 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/16/21 @ 7:45 3/16/21 @ 9:55, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Well Construction Details 20 21
27 22
23 24
25 29
30 34
31 32

Page 2 of 2 ends

38 39
40 33
End of boring (refusal) at 26 feet below garage surface, 3/16/21 @ 9:55.

Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40. 28 26
35 36
37 685 of 1252
BORING/WELL ID:

SB-07
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 14 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 11:59

0.0 13:29

0.0 13:27

0.0 13:37

0.0 13:35

0.0 13:42
Sandy lean CLAY (CL), dark yellowish brown (10yr 4/6), damp, medium stiff, low plasticity, fine to coarse sand, fine gravels, no odor, (10, 35, 10, 45).

Clayey SAND with gravel (SC), brown (10yr 5/3), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (25, 35, 15, 25).

Sandy lean CLAY (CL), brown (10yr 5/3), damp, stiff, low plasticity, fine to coarse sand, fine gravels, no odor, (10, 25, 20, 45).

Hand Auger to 5 ft
0 8 inches of Concrete
Logged By: E. Male
End of boring (refusal) at 14 feet below garage surface, 3/17/21 @ 13:40.

Install temporary 0.010-inch slotted screen 9-14 feet below garage surface.

Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40.

TOTAL BORING DEPTH(S): 14 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/17/21 @ ~11:50 3/17/21 @ 13:40, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Borehole Construction Details 6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 1 2
3 6
7 4
5 8
9 10
11 16
12 13
14 15

Page 1 of 1 ends

17 18
19 20
686 of 1252
BORING/WELL ID:

SB-08
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 10:00

0.0 10:28

0.0 10:23

0.0 10:40

0.0 10:39

0.0 10:55

0.0 10:51

0.0 11:06

0.0 11:03

Page 1 of 2 ends

17 18 Sandy lean CLAY with gravel (CL), strong brown (10yr 5/6), damp, medium stiff, low plasticity, fine to coarse sand, fine to medium gravels, no odor, (15, 30, 20, 35). 19 20 No Recovery 20-24 ft
10 11
16 12
13 14
15 8
9 7
4 5
6 Hand Auger to 5 ft
0 2
1 3 Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Borehole Construction Details 8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 3/18/21 @ 9:40 3/18/21 @ 11:00, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market Logged By: E. Male Clayey SAND with gravel (SC), brown (10yr 4/3), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (20, 35, 15, 30).

Sandy lean CLAY (CL), brownish yellow (10yr 6/8), damp, low plasticity, fine to medium sand, fine gravels, no odor, (10, 35, 15, 40).
6" lens of sandy silty CLAY with gravels
Lean CLAY with sand (CL), strong brown (10yr 5/6), damp, stiff, low plasticity, fine sand, rare fine gravels, no odor, (2, 15, 20, 63).

TOTAL BORING DEPTH(S): 26 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME:
687 of 1252
BORING/WELL ID:

SB-08
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 26 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 11:20

0.0 11:13
26 33
35 36
37 34
Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40. 28 31
32

Page 2 of 2 ends

38 39
40 29
30 Well Construction Details
20 21
27 22
23 24
25 DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market Logged By: E. Male End of boring at 26 feet below garage surface, 3/18/21 @ 11:00.

No Recovery in 20 to 24 ft drive, but some loose material collected in 24 to 26 ft drive: Lean CLAY with sand (CL), red brown (10yr 5/6), damp, medium stiff, low plasticity, fine sand, no odor, (0, 15, 30, 55).

Sandy CLAY (CL), strong brown (10yr 4/6), damp, stiff, low plasticity, fine to medium sand, fine to medium gravels, (5, 25, 30, 40).

TOTAL BORING DEPTH(S): 26 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/18/21 @ 9:40 3/18/21 @ 11:00, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS):
688 of 1252
BORING/WELL ID:

SB-09
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 15 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 10:34

0.0 11:09

0.0 11:04

0.0 11:26

0.0 11:12

0.0 11:38

0.0 Lean CLAY with sand (CL), strong brown (10yr 4/6), damp, medium stiff, low plasticity, fine sand, fine gravels, no odor, (5, 15, 15, 65).
[6" lens: clayey GRAVEL with sand (GW), brownish yellow (10yr 6/6), damp, loose, non- plastic, fine to medium sand, fine to coarse gravels, no odor, (50, 25, 10, 15).] End of boring (refusal) at 15 feet below garage surface, 3/16/21 @ 11:15.

Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/16/21 @ ~15:30.

Logged By: E. Male
Clayey SAND with gravel (SC), yellow brown (10yr 5/8), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (25, 35, 15, 25).

Sandy lean CLAY (CL), pale brown (10yr 6/3), damp, medium stiff, low plasticity, fine to coarse sand, fine to medium gravels, no odor, (10, 35, 15, 40).

TOTAL BORING DEPTH(S): 15 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/16/21 @ 10:20 3/16/21 @ 11:15, grouted 3/16/21 @ ~15:30 FIRST WATER (BGS):

PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

Page 1 of 1 ends

17 18
19 20
689 of 1252
BORING/WELL ID:

SB-10
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 25 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 13:52
14:22

0.0 14:20

0.0 14:34

0.0 14:32

0.0 14:46

0.0 14:44

0.0 15:00
14:58 0.0
3/16/21 @ 15:50, grouted 3/18/21 @ ~16:40
Logged By: E. Male
Clayey SAND with gravel (SC), yellowish brown (10yr 5/4), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (25, 35, 15, 25).

Sandy lean CLAY (CL), yellowish brown (10yr 5/6), damp, medium stiff to stiff (stiffness increases with depth), low to medium plasticity, fine sand, fine gravels, no odor, (5, 25, 15, 55).

Lean CLAY with sand (CL), brown (10yr 5/3), damp, very stiff, low plasticity, fine sand, no odor, (0, 15, 20, 65).

Sandy lean CLAY (CL), yellowish brown (10yr 5/6), damp, stiff, low plasticity, fine to medium sand, fine gravels, no odor, (5, 25, 10, 60).

Borehole Construction Details
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/16/21 @ ~13:15
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) TOTAL BORING DEPTH(S): 25 ft below garage surface
8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 1 3
6 8
Hand Auger to 5 ft
0 2
7 4
5 9
10 11
16 12
13 14
15

Page 1 of 2 ends

17 18
19 20
Lean CLAY with sand (CL), yellowish brown (10yr 5/4), damp, low plasticity, fine sand, no odor, (0, 25, 20, 55).
4" lens of moist Sandy CLAY
690 of 1252
BORING/WELL ID:

SB-10
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: DRY
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 25 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy 15:19

0.0 15:15
Logged By: E. Male
Lean CLAY with sand (CL), brown (10yr 5/3), moist, soft, low-med plasticity, fine sand, fine gravels, no odor, (2, 20, 15, 63).

Sandy lean CLAY (CL), brownish yellow (10yr 6/6), damp, very stiff, low plasticity, fine sand, fine gravels, no odor, (5, 25, 10, 60).
[6" lens: lean CLAY with sand (CL), brown (10yr 5/3), moist, soft, low plasticity, fine sand, fine gravels (2, 15, 20, 63).]
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market TOTAL BORING DEPTH(S): 25 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/16/21 @ ~13:15 3/16/21 @ 15:50, grouted 3/18/21 @ ~16:40 FIRST WATER (BGS): DRY
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Well Construction Details 20 21
27 22
23 24
25 29
30 34
31 32
36 37

Page 2 of 2 ends

38 39
40 33
Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40.

End of boring (refusal) at 25 feet below garage surface, 3/16/21 @ 15:50.

Install temporary 0.010-inch slotted screen 15-25 feet below garage surface. 28 26
35 691 of 1252
BORING/WELL ID:

SB-11
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: 16.8 ft below garage surface
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 43 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 7:50

0.0 8:42

0.0 8:51

0.0 8:49
9:05

0.0 8:59

0.0 9:16

0.0 9:12

0.0 9:22

Page 1 of 3 ends

17 18
19 20
Sandy lean CLAY (CL), yellowish brown (10yr 5/4), damp, stiff, low plasticity, fine to medium sand, fine to medium gravels, no odor, (10, 30, 15, 45).
10 11
16 12
13 14
15 8
9 7
4 5
3 6
Borehole Construction Details
Hand Auger to 5 ft
0 8 inches of Concrete
6 inches of Gravel Fill (3/4" gravel, sub-angular, clean) 1 2
FIRST WATER (BGS): 40.5 ft below garage surface
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market Sandy lean CLAY (CL), dark yellowish brown (10yr 4/6), damp, stiff, low plasticity, fine to coarse sand, fine gravels, no odor, (10, 35, 10, 45).
--increase in moisture, softer
Logged By: E. Male
Clayey SAND with gravel (SC), dark yellow-brown (10yr 5/8), damp, loose, non-plastic, fine to coarse sand, fine to coarse gravels, no odor, (25, 35, 15, 25).

TOTAL BORING DEPTH(S): 43 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/17/21 @ 7:30 3/17/21 @ 10:56, grouted 3/18/21 @ ~16:40 692 of 1252
BORING/WELL ID:

SB-11
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: 16.8 ft below garage surface
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 43 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 9:20

0.0 9:41

0.0 9:35

0.0 10:12

0.0 10:07

0.0 10:33

0.0 10:47
11:10 0.0
Lean CLAY with sand (CL), brown (7.5yr 4/4), damp, soft (interbedded with stiff material), medium plasticity, fine sand, no odor, (0, 15, 15, 70).

Lean CLAY with sand (CL), pale brown (10yr 6/3), damp, soft (interbedded with stiff material), low plasticity, fine to medium sand, no odor, (0, 25, 15, 60).

Lean CLAY (CL), dark yellow brown (10yr 4/4), damp, stiff, low-medium plasticity, fine sand, no odor, (0, 5, 10, 85).

Sandy lean CLAY (CL), yellowish brown (10yr 5/8), damp, medium stiff, low plasticity, fine to medium sand, fine gravel, rare coarse gravel, no odor, (5, 25, 20, 50).

Lean CLAY (CL), yellowish brown (10yr 5/8), damp, medium stiff, low to medium plasticity, fine sand, no odor, (0, 15, 20, 65).

Lean CLAY with sand (CL), yellowish brown (10yr 5/8), damp, medium stiff, low plasticity, fine sand, fine gravel, no odor, (10, 25, 20, 45).
33 28
35 36
37

Page 2 of 3 ends

38 39
40 Lean CLAY (CL), brown (10yr 5/3), damp, medium stiff, low to medium plasticity, fine sand, no odor, (0, 10, 10, 80).

Lean CLAY with sand (CL), mottled light grey (10yr 7/1) and pale brown (10yr 6/3), damp, medium stiff, low plasticity, fine sand, rare fine gravel, no odor, (2, 15, 25, 58). 34 31
32 26
No Recovery from 27 to 31 ft below garage surface 29
30 20
21 27
22 23
24 25
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Well Construction Details PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market Logged By: E. Male As above: Sandy lean CLAY (CL), yellowish brown (10yr 5/4), damp, stiff, low plasticity, fine to medium sand, fine to medium gravels, no odor, (10, 30, 15, 45).

SB-11
Project No. 01-LP-001
MONITORING DEVICE: PID (PPM)
FINISH DATE / TIME:

STABILIZED WATER LEVEL: 16.8 ft below garage surface
CASING TOP ELEVATION: --
BORING DIAMETER/DEPTH: 2.25 inches to 43 feet below garage surface.

TimePID ReadingWater LevelSample IntervalRecovery (%)Stratigraphy

0.0 11:07

0.0 Logged By: E. Male
End of boring at 43 feet below garage surface, 3/17/21 @ 10:56.

Install temporary 0.010-inch slotted screen 33-43 feet below garage surface. as above: Lean CLAY (CL), brown (10yr 5/3), damp, med stiff, low- med plasticity, fine sand, no odor, (0, 10, 10, 80).

Sandy lean CLAY (CL), brown (10yr 5/3), WET, low plasticity, fine-coarse sand, fine gravels, no odor, (10, 25, 30, 35).

Lean CLAY with sand (CL), strong brown (7.5yr 4/6), damp, stiff, low plasticity, fine sand, rare fine gravels, no odor, (2, 15, 25, 58).

Lean CLAY w/ sand (CL), strong brown (7.5yr 4/6), damp, stiff, low plasticity, f sand, f gravels, no odor, (2, 15, 25, 58).

Sandy lean CLAY (CL), brown (10yr 5/3), WET, low plasticity, fine-coarse sand, fine gravels, no odor, (10, 25, 30, 35). 3/17/21 @ 10:56, grouted 3/18/21 @ ~16:40
PROJECT NAME AND ADDRESS: Lane Partners 222 E 4th Ave, San Mateo BORING LOCATION (AT SITE): Underground parking garage of Draeger's Market TOTAL BORING DEPTH(S): 43 ft below garage surface
CONTRACTOR AND EQUIPMENT: Gregg Drilling / Limited Access Ramset Dolly Rig SAMPLING METHOD: Macrocore
START DATE / TIME: 3/17/21 @ 7:30
FIRST WATER (BGS): 40.5 ft below garage surface
SURFACE ELEVATION: ~12 ft below ground surface Depth (feet)

LITHOLOGIC DESCRIPTION
(classification, color, moisture, density, grain size/plasticity, other) Well Construction Details 40 41
42 43
44 Grouted with Type I/II Portland Cement, Capped with 8 inches of Concrete, 3/18/21 @ ~16:40. 45 46
47 53
48 49
50 51
52 54
55 56
57 58

Page 3 of 3 ends

59 60
694 of 1252

APPENDIX C
Field Data Sheets
695 of 1252
696 of 1252
697 of 1252
698 of 1252
699 of 1252
700 of 1252
701 of 1252
702 of 1252
703 of 1252
704 of 1252
705 of 1252
RMD ENVIRONMENTAL SOLUTIONS, INC.

APPENDIX D
Laboratory Analytical Reports
706 of 1252

ANALYTICAL REPORT
March 24, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1327778
Samples Received: 03/17/2021
Project Number: 01-LP-001 TASK 2
Description: Lane Partners
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

March 24, 2021
[Preliminary Report]
Jared Starkey
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.

Pace Analytical National
12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:06 1 of 27 March 24, 2021
Jared Starkey
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 707 of 1252 1 of 27

TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 6
SB-01-COMP L1327778-01 6
SB-04-COMP L1327778-02 8
SB-05-COMP L1327778-03 10
Qc: Quality Control Summary 12
Total Solids by Method 2540 G-2011 12
Volatile Organic Compounds (GC) by Method 8015 13
Volatile Organic Compounds (GC/MS) by Method 8260B 14
Semi-Volatile Organic Compounds (GC) by Method 8015 21
Gl: Glossary of Terms 22
Al: Accreditations & Locations 23
Sc: Sample Chain of Custody 24
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 708 of 1252 2 of 27

SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-01-COMP L1327778-01 Solid Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1636652 1 03/18/21 16:43 03/18/21 17:02 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1637800 1 03/18/21 08:43 03/20/21 14:35 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1637263 1 03/18/21 08:43 03/19/21 10:44 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1639065 1 03/18/21 08:43 03/23/21 21:23 TPR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1636135 1 03/18/21 14:15 03/18/21 18:50 TJD Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-04-COMP L1327778-02 Solid Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1636652 1 03/18/21 16:43 03/18/21 17:02 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1637800 1 03/18/21 08:43 03/20/21 14:57 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1637263 1 03/18/21 08:43 03/19/21 11:03 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1639065 1 03/18/21 08:43 03/23/21 21:42 TPR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1636135 1 03/18/21 14:15 03/18/21 19:28 TJD Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-05-COMP L1327778-03 Solid Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1636652 1 03/18/21 16:43 03/18/21 17:02 KDW Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1637800 1 03/18/21 08:43 03/20/21 15:19 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1637263 1 03/18/21 08:43 03/19/21 11:22 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1639065 1 03/18/21 08:43 03/23/21 22:02 TPR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1636135 1 03/18/21 14:15 03/18/21 19:41 TJD Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 709 of 1252 3 of 27

CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report]
Jared Starkey
Project Manager
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:06 4 of 27 Jared Starkey
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 710 of 1252 4 of 27

DETECTION SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-01-COMP L1327778-01 2-Butanone (MEK) 0.124 B J 0.0918 0.145 1 03/19/2021 10:44 WG1637263 SB-04-COMP L1327778-02 2-Butanone (MEK) 0.111 B J 0.0913 0.144 1 03/19/2021 11:03 WG1637263 SB-04-COMP L1327778-02 Tetrachloroethene 0.00187 J 0.00129 0.00360 1 03/23/2021 21:42 WG1639065 SB-05-COMP L1327778-03 2-Butanone (MEK) 0.110 B J 0.0940 0.148 1 03/19/2021 11:22 WG1637263 SB-05-COMP L1327778-03 Tetrachloroethene 0.00141 J 0.00133 0.00370 1 03/23/2021 22:02 WG1639065 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-01-COMP L1327778-01 C12-C22 Hydrocarbons 1.52 J 0.896 4.89 1 03/18/2021 18:50 WG1636135 SB-05-COMP L1327778-03 C12-C22 Hydrocarbons 2.02 J 0.909 4.96 1 03/18/2021 19:41 WG1636135 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 711 of 1252 5 of 27 SAMPLE RESULTS - 01
L1327778
SB-01-COMP
Collected date/time: 03/15/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 81.8 1 03/18/2021 17:02 WG1636652
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U J3 0.0406 0.122 1 03/20/2021 14:35 WG1637800 (S) a,a,a-Trifluorotoluene(FID) 92.8 77.0-120 03/20/2021 14:35 WG1637800 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0528 0.0723 1 03/19/2021 10:44 WG1637263 Acrylonitrile U 0.00522 0.0181 1 03/19/2021 10:44 WG1637263 Benzene U 0.000675 0.00145 1 03/19/2021 10:44 WG1637263 Bromobenzene U 0.00130 0.0181 1 03/19/2021 10:44 WG1637263 Bromodichloromethane U 0.00105 0.00361 1 03/19/2021 10:44 WG1637263 Bromoform U 0.00169 0.0361 1 03/19/2021 10:44 WG1637263 Bromomethane U 0.00285 0.0181 1 03/19/2021 10:44 WG1637263 n-Butylbenzene U 0.00759 0.0181 1 03/19/2021 10:44 WG1637263 sec-Butylbenzene U 0.00416 0.0181 1 03/19/2021 10:44 WG1637263 tert-Butylbenzene U 0.00282 0.00723 1 03/19/2021 10:44 WG1637263 Carbon tetrachloride U J3 0.00130 0.00723 1 03/19/2021 10:44 WG1637263 Chlorobenzene U 0.000304 0.00361 1 03/19/2021 10:44 WG1637263 Chlorodibromomethane U 0.000885 0.00361 1 03/19/2021 10:44 WG1637263 Chloroethane U 0.00246 0.00723 1 03/19/2021 10:44 WG1637263 Chloroform U 0.00149 0.00361 1 03/19/2021 10:44 WG1637263 Chloromethane U 0.00629 0.0181 1 03/19/2021 10:44 WG1637263 2-Chlorotoluene U 0.00125 0.00361 1 03/19/2021 10:44 WG1637263 4-Chlorotoluene U 0.000651 0.00723 1 03/19/2021 10:44 WG1637263 1,2-Dibromo-3-Chloropropane U 0.00564 0.0361 1 03/19/2021 10:44 WG1637263 1,2-Dibromoethane U 0.000937 0.00361 1 03/19/2021 10:44 WG1637263 Dibromomethane U 0.00108 0.00723 1 03/19/2021 10:44 WG1637263 1,2-Dichlorobenzene U 0.000614 0.00723 1 03/19/2021 10:44 WG1637263 1,3-Dichlorobenzene U 0.000867 0.00723 1 03/19/2021 10:44 WG1637263 1,4-Dichlorobenzene U 0.00101 0.00723 1 03/19/2021 10:44 WG1637263 Dichlorodifluoromethane U J3 0.00233 0.00361 1 03/19/2021 10:44 WG1637263 1,1-Dichloroethane U 0.000710 0.00361 1 03/19/2021 10:44 WG1637263 1,2-Dichloroethane U 0.000938 0.00361 1 03/19/2021 10:44 WG1637263 1,1-Dichloroethene U J3 0.000876 0.00361 1 03/19/2021 10:44 WG1637263 cis-1,2-Dichloroethene U 0.00106 0.00361 1 03/19/2021 10:44 WG1637263 trans-1,2-Dichloroethene U 0.00150 0.00723 1 03/19/2021 10:44 WG1637263 1,2-Dichloropropane U 0.00205 0.00723 1 03/19/2021 10:44 WG1637263 1,1-Dichloropropene U 0.00117 0.00361 1 03/19/2021 10:44 WG1637263 1,3-Dichloropropane U 0.000724 0.00723 1 03/19/2021 10:44 WG1637263 cis-1,3-Dichloropropene U 0.00109 0.00361 1 03/19/2021 10:44 WG1637263 trans-1,3-Dichloropropene U 0.00165 0.00723 1 03/19/2021 10:44 WG1637263 2,2-Dichloropropane U 0.00200 0.00361 1 03/19/2021 10:44 WG1637263 Di-isopropyl ether U 0.000593 0.00145 1 03/19/2021 10:44 WG1637263 Ethylbenzene U 0.00107 0.00361 1 03/19/2021 10:44 WG1637263 Hexachloro-1,3-butadiene U 0.00867 0.0361 1 03/19/2021 10:44 WG1637263 Isopropylbenzene U 0.000614 0.00361 1 03/19/2021 10:44 WG1637263 p-Isopropyltoluene U 0.00369 0.00723 1 03/19/2021 10:44 WG1637263 2-Butanone (MEK) 0.124 B J 0.0918 0.145 1 03/19/2021 10:44 WG1637263 Methylene Chloride U 0.00960 0.0361 1 03/19/2021 10:44 WG1637263 4-Methyl-2-pentanone (MIBK) U 0.00330 0.0361 1 03/19/2021 10:44 WG1637263 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 712 of 1252 6 of 27 SAMPLE RESULTS - 01
L1327778
SB-01-COMP
Collected date/time: 03/15/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000506 0.00145 1 03/19/2021 10:44 WG1637263 Naphthalene U 0.00706 0.0181 1 03/19/2021 10:44 WG1637263 n-Propylbenzene U 0.00137 0.00723 1 03/19/2021 10:44 WG1637263 Styrene U 0.000331 0.0181 1 03/19/2021 10:44 WG1637263
1,1,1,2-Tetrachloroethane U 0.00137 0.00361 1 03/19/2021 10:44 WG1637263 1,1,2,2-Tetrachloroethane U 0.00100 0.00361 1 03/19/2021 10:44 WG1637263 1,1,2-Trichlorotrifluoroethane U J3 0.00109 0.00361 1 03/19/2021 10:44 WG1637263 Tetrachloroethene U 0.00130 0.00361 1 03/23/2021 21:23 WG1639065 Toluene U 0.00188 0.00723 1 03/19/2021 10:44 WG1637263
1,2,3-Trichlorobenzene U 0.0106 0.0181 1 03/19/2021 10:44 WG1637263 1,2,4-Trichlorobenzene U 0.00636 0.0181 1 03/19/2021 10:44 WG1637263 1,1,1-Trichloroethane U 0.00133 0.00361 1 03/19/2021 10:44 WG1637263 1,1,2-Trichloroethane U 0.000863 0.00361 1 03/19/2021 10:44 WG1637263 Trichloroethene U 0.000844 0.00145 1 03/19/2021 10:44 WG1637263 Trichlorofluoromethane U 0.00120 0.00361 1 03/19/2021 10:44 WG1637263 1,2,3-Trichloropropane U 0.00234 0.0181 1 03/19/2021 10:44 WG1637263 1,2,4-Trimethylbenzene U 0.00228 0.00723 1 03/19/2021 10:44 WG1637263 1,2,3-Trimethylbenzene U 0.00228 0.00723 1 03/19/2021 10:44 WG1637263 1,3,5-Trimethylbenzene U 0.00289 0.00723 1 03/19/2021 10:44 WG1637263 Vinyl chloride U J3 0.00168 0.00361 1 03/19/2021 10:44 WG1637263 Xylenes, Total U 0.00127 0.00940 1 03/19/2021 10:44 WG1637263 (S) Toluene-d8 113 75.0-131 03/19/2021 10:44 WG1637263
(S) Toluene-d8 101 75.0-131 03/23/2021 21:23 WG1639065
(S) 4-Bromofluorobenzene 91.5 67.0-138 03/19/2021 10:44 WG1637263 (S) 4-Bromofluorobenzene 93.4 67.0-138 03/23/2021 21:23 WG1639065 (S) 1,2-Dichloroethane-d4 90.0 70.0-130 03/19/2021 10:44 WG1637263 (S) 1,2-Dichloroethane-d4 74.3 70.0-130 03/23/2021 21:23 WG1639065 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 1.52 J 0.896 4.89 1 03/18/2021 18:50 WG1636135 C22-C32 Hydrocarbons U 1.63 4.89 1 03/18/2021 18:50 WG1636135 C32-C40 Hydrocarbons U 1.63 4.89 1 03/18/2021 18:50 WG1636135 (S) o-Terphenyl 91.6 18.0-148 03/18/2021 18:50 WG1636135 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 713 of 1252 7 of 27 SAMPLE RESULTS - 02
L1327778
SB-04-COMP
Collected date/time: 03/15/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 82.0 1 03/18/2021 17:02 WG1636652
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0405 0.122 1 03/20/2021 14:57 WG1637800 (S) a,a,a-Trifluorotoluene(FID) 90.1 77.0-120 03/20/2021 14:57 WG1637800 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0525 0.0719 1 03/19/2021 11:03 WG1637263 Acrylonitrile U 0.00519 0.0180 1 03/19/2021 11:03 WG1637263 Benzene U 0.000672 0.00144 1 03/19/2021 11:03 WG1637263 Bromobenzene U 0.00129 0.0180 1 03/19/2021 11:03 WG1637263 Bromodichloromethane U 0.00104 0.00360 1 03/19/2021 11:03 WG1637263 Bromoform U 0.00168 0.0360 1 03/19/2021 11:03 WG1637263 Bromomethane U 0.00283 0.0180 1 03/19/2021 11:03 WG1637263 n-Butylbenzene U 0.00755 0.0180 1 03/19/2021 11:03 WG1637263 sec-Butylbenzene U 0.00414 0.0180 1 03/19/2021 11:03 WG1637263 tert-Butylbenzene U 0.00280 0.00719 1 03/19/2021 11:03 WG1637263 Carbon tetrachloride U 0.00129 0.00719 1 03/19/2021 11:03 WG1637263 Chlorobenzene U 0.000302 0.00360 1 03/19/2021 11:03 WG1637263 Chlorodibromomethane U 0.000880 0.00360 1 03/19/2021 11:03 WG1637263 Chloroethane U 0.00245 0.00719 1 03/19/2021 11:03 WG1637263 Chloroform U 0.00148 0.00360 1 03/19/2021 11:03 WG1637263 Chloromethane U 0.00626 0.0180 1 03/19/2021 11:03 WG1637263 2-Chlorotoluene U 0.00124 0.00360 1 03/19/2021 11:03 WG1637263 4-Chlorotoluene U 0.000647 0.00719 1 03/19/2021 11:03 WG1637263 1,2-Dibromo-3-Chloropropane U 0.00561 0.0360 1 03/19/2021 11:03 WG1637263 1,2-Dibromoethane U 0.000932 0.00360 1 03/19/2021 11:03 WG1637263 Dibromomethane U 0.00108 0.00719 1 03/19/2021 11:03 WG1637263 1,2-Dichlorobenzene U 0.000611 0.00719 1 03/19/2021 11:03 WG1637263 1,3-Dichlorobenzene U 0.000863 0.00719 1 03/19/2021 11:03 WG1637263 1,4-Dichlorobenzene U 0.00101 0.00719 1 03/19/2021 11:03 WG1637263 Dichlorodifluoromethane U 0.00232 0.00360 1 03/19/2021 11:03 WG1637263 1,1-Dichloroethane U 0.000706 0.00360 1 03/19/2021 11:03 WG1637263 1,2-Dichloroethane U 0.000934 0.00360 1 03/19/2021 11:03 WG1637263 1,1-Dichloroethene U 0.000872 0.00360 1 03/19/2021 11:03 WG1637263 cis-1,2-Dichloroethene U 0.00106 0.00360 1 03/19/2021 11:03 WG1637263 trans-1,2-Dichloroethene U 0.00150 0.00719 1 03/19/2021 11:03 WG1637263 1,2-Dichloropropane U 0.00204 0.00719 1 03/19/2021 11:03 WG1637263 1,1-Dichloropropene U 0.00116 0.00360 1 03/19/2021 11:03 WG1637263 1,3-Dichloropropane U 0.000721 0.00719 1 03/19/2021 11:03 WG1637263 cis-1,3-Dichloropropene U 0.00109 0.00360 1 03/19/2021 11:03 WG1637263 trans-1,3-Dichloropropene U 0.00164 0.00719 1 03/19/2021 11:03 WG1637263 2,2-Dichloropropane U 0.00198 0.00360 1 03/19/2021 11:03 WG1637263 Di-isopropyl ether U 0.000590 0.00144 1 03/19/2021 11:03 WG1637263 Ethylbenzene U 0.00106 0.00360 1 03/19/2021 11:03 WG1637263 Hexachloro-1,3-butadiene U 0.00863 0.0360 1 03/19/2021 11:03 WG1637263 Isopropylbenzene U 0.000611 0.00360 1 03/19/2021 11:03 WG1637263 p-Isopropyltoluene U 0.00367 0.00719 1 03/19/2021 11:03 WG1637263 2-Butanone (MEK) 0.111 B J 0.0913 0.144 1 03/19/2021 11:03 WG1637263 Methylene Chloride U 0.00955 0.0360 1 03/19/2021 11:03 WG1637263 4-Methyl-2-pentanone (MIBK) U 0.00328 0.0360 1 03/19/2021 11:03 WG1637263 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 714 of 1252 8 of 27 SAMPLE RESULTS - 02
L1327778
SB-04-COMP
Collected date/time: 03/15/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000503 0.00144 1 03/19/2021 11:03 WG1637263 Naphthalene U 0.00702 0.0180 1 03/19/2021 11:03 WG1637263 n-Propylbenzene U 0.00137 0.00719 1 03/19/2021 11:03 WG1637263 Styrene U 0.000329 0.0180 1 03/19/2021 11:03 WG1637263
1,1,1,2-Tetrachloroethane U 0.00136 0.00360 1 03/19/2021 11:03 WG1637263 1,1,2,2-Tetrachloroethane U 0.00100 0.00360 1 03/19/2021 11:03 WG1637263 1,1,2-Trichlorotrifluoroethane U 0.00108 0.00360 1 03/19/2021 11:03 WG1637263 Tetrachloroethene 0.00187 J 0.00129 0.00360 1 03/23/2021 21:42 WG1639065 Toluene U 0.00187 0.00719 1 03/19/2021 11:03 WG1637263
1,2,3-Trichlorobenzene U 0.0105 0.0180 1 03/19/2021 11:03 WG1637263 1,2,4-Trichlorobenzene U 0.00633 0.0180 1 03/19/2021 11:03 WG1637263 1,1,1-Trichloroethane U 0.00133 0.00360 1 03/19/2021 11:03 WG1637263 1,1,2-Trichloroethane U 0.000859 0.00360 1 03/19/2021 11:03 WG1637263 Trichloroethene U 0.000840 0.00144 1 03/19/2021 11:03 WG1637263 Trichlorofluoromethane U 0.00119 0.00360 1 03/19/2021 11:03 WG1637263 1,2,3-Trichloropropane U 0.00233 0.0180 1 03/19/2021 11:03 WG1637263 1,2,4-Trimethylbenzene U 0.00227 0.00719 1 03/19/2021 11:03 WG1637263 1,2,3-Trimethylbenzene U 0.00227 0.00719 1 03/19/2021 11:03 WG1637263 1,3,5-Trimethylbenzene U 0.00288 0.00719 1 03/19/2021 11:03 WG1637263 Vinyl chloride U 0.00167 0.00360 1 03/19/2021 11:03 WG1637263 Xylenes, Total U 0.00127 0.00935 1 03/19/2021 11:03 WG1637263 (S) Toluene-d8 113 75.0-131 03/19/2021 11:03 WG1637263
(S) Toluene-d8 101 75.0-131 03/23/2021 21:42 WG1639065
(S) 4-Bromofluorobenzene 89.0 67.0-138 03/19/2021 11:03 WG1637263 (S) 4-Bromofluorobenzene 92.3 67.0-138 03/23/2021 21:42 WG1639065 (S) 1,2-Dichloroethane-d4 91.9 70.0-130 03/19/2021 11:03 WG1637263 (S) 1,2-Dichloroethane-d4 73.9 70.0-130 03/23/2021 21:42 WG1639065 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons U 0.894 4.88 1 03/18/2021 19:28 WG1636135 C22-C32 Hydrocarbons U 1.62 4.88 1 03/18/2021 19:28 WG1636135 C32-C40 Hydrocarbons U 1.62 4.88 1 03/18/2021 19:28 WG1636135 (S) o-Terphenyl 75.7 18.0-148 03/18/2021 19:28 WG1636135 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 715 of 1252 9 of 27 SAMPLE RESULTS - 03
L1327778
SB-05-COMP
Collected date/time: 03/15/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 80.7 1 03/18/2021 17:02 WG1636652
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0412 0.124 1 03/20/2021 15:19 WG1637800 (S) a,a,a-Trifluorotoluene(FID) 91.0 77.0-120 03/20/2021 15:19 WG1637800 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0540 0.0740 1 03/19/2021 11:22 WG1637263 Acrylonitrile U 0.00534 0.0185 1 03/19/2021 11:22 WG1637263 Benzene U 0.000691 0.00148 1 03/19/2021 11:22 WG1637263 Bromobenzene U 0.00133 0.0185 1 03/19/2021 11:22 WG1637263 Bromodichloromethane U 0.00107 0.00370 1 03/19/2021 11:22 WG1637263 Bromoform U 0.00173 0.0370 1 03/19/2021 11:22 WG1637263 Bromomethane U 0.00292 0.0185 1 03/19/2021 11:22 WG1637263 n-Butylbenzene U 0.00777 0.0185 1 03/19/2021 11:22 WG1637263 sec-Butylbenzene U 0.00426 0.0185 1 03/19/2021 11:22 WG1637263 tert-Butylbenzene U 0.00289 0.00740 1 03/19/2021 11:22 WG1637263 Carbon tetrachloride U 0.00133 0.00740 1 03/19/2021 11:22 WG1637263 Chlorobenzene U 0.000311 0.00370 1 03/19/2021 11:22 WG1637263 Chlorodibromomethane U 0.000906 0.00370 1 03/19/2021 11:22 WG1637263 Chloroethane U 0.00252 0.00740 1 03/19/2021 11:22 WG1637263 Chloroform U 0.00152 0.00370 1 03/19/2021 11:22 WG1637263 Chloromethane U 0.00644 0.0185 1 03/19/2021 11:22 WG1637263 2-Chlorotoluene U 0.00128 0.00370 1 03/19/2021 11:22 WG1637263 4-Chlorotoluene U 0.000666 0.00740 1 03/19/2021 11:22 WG1637263 1,2-Dibromo-3-Chloropropane U 0.00577 0.0370 1 03/19/2021 11:22 WG1637263 1,2-Dibromoethane U 0.000959 0.00370 1 03/19/2021 11:22 WG1637263 Dibromomethane U 0.00111 0.00740 1 03/19/2021 11:22 WG1637263 1,2-Dichlorobenzene U 0.000629 0.00740 1 03/19/2021 11:22 WG1637263 1,3-Dichlorobenzene U 0.000888 0.00740 1 03/19/2021 11:22 WG1637263 1,4-Dichlorobenzene U 0.00104 0.00740 1 03/19/2021 11:22 WG1637263 Dichlorodifluoromethane U 0.00238 0.00370 1 03/19/2021 11:22 WG1637263 1,1-Dichloroethane U 0.000727 0.00370 1 03/19/2021 11:22 WG1637263 1,2-Dichloroethane U 0.000960 0.00370 1 03/19/2021 11:22 WG1637263 1,1-Dichloroethene U 0.000897 0.00370 1 03/19/2021 11:22 WG1637263 cis-1,2-Dichloroethene U 0.00109 0.00370 1 03/19/2021 11:22 WG1637263 trans-1,2-Dichloroethene U 0.00154 0.00740 1 03/19/2021 11:22 WG1637263 1,2-Dichloropropane U 0.00210 0.00740 1 03/19/2021 11:22 WG1637263 1,1-Dichloropropene U 0.00120 0.00370 1 03/19/2021 11:22 WG1637263 1,3-Dichloropropane U 0.000741 0.00740 1 03/19/2021 11:22 WG1637263 cis-1,3-Dichloropropene U 0.00112 0.00370 1 03/19/2021 11:22 WG1637263 trans-1,3-Dichloropropene U 0.00169 0.00740 1 03/19/2021 11:22 WG1637263 2,2-Dichloropropane U 0.00204 0.00370 1 03/19/2021 11:22 WG1637263 Di-isopropyl ether U 0.000607 0.00148 1 03/19/2021 11:22 WG1637263 Ethylbenzene U 0.00109 0.00370 1 03/19/2021 11:22 WG1637263 Hexachloro-1,3-butadiene U 0.00888 0.0370 1 03/19/2021 11:22 WG1637263 Isopropylbenzene U 0.000629 0.00370 1 03/19/2021 11:22 WG1637263 p-Isopropyltoluene U 0.00377 0.00740 1 03/19/2021 11:22 WG1637263 2-Butanone (MEK) 0.110 B J 0.0940 0.148 1 03/19/2021 11:22 WG1637263 Methylene Chloride U 0.00983 0.0370 1 03/19/2021 11:22 WG1637263 4-Methyl-2-pentanone (MIBK) U 0.00337 0.0370 1 03/19/2021 11:22 WG1637263 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 716 of 1252 10 of 27 SAMPLE RESULTS - 03
L1327778
SB-05-COMP
Collected date/time: 03/15/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000518 0.00148 1 03/19/2021 11:22 WG1637263 Naphthalene U 0.00722 0.0185 1 03/19/2021 11:22 WG1637263 n-Propylbenzene U 0.00141 0.00740 1 03/19/2021 11:22 WG1637263 Styrene U 0.000339 0.0185 1 03/19/2021 11:22 WG1637263
1,1,1,2-Tetrachloroethane U 0.00140 0.00370 1 03/19/2021 11:22 WG1637263 1,1,2,2-Tetrachloroethane U 0.00103 0.00370 1 03/19/2021 11:22 WG1637263 1,1,2-Trichlorotrifluoroethane U 0.00112 0.00370 1 03/19/2021 11:22 WG1637263 Tetrachloroethene 0.00141 J 0.00133 0.00370 1 03/23/2021 22:02 WG1639065 Toluene U 0.00192 0.00740 1 03/19/2021 11:22 WG1637263
1,2,3-Trichlorobenzene U 0.0108 0.0185 1 03/19/2021 11:22 WG1637263 1,2,4-Trichlorobenzene U 0.00651 0.0185 1 03/19/2021 11:22 WG1637263 1,1,1-Trichloroethane U 0.00137 0.00370 1 03/19/2021 11:22 WG1637263 1,1,2-Trichloroethane U 0.000883 0.00370 1 03/19/2021 11:22 WG1637263 Trichloroethene U 0.000864 0.00148 1 03/19/2021 11:22 WG1637263 Trichlorofluoromethane U 0.00122 0.00370 1 03/19/2021 11:22 WG1637263 1,2,3-Trichloropropane U 0.00240 0.0185 1 03/19/2021 11:22 WG1637263 1,2,4-Trimethylbenzene U 0.00234 0.00740 1 03/19/2021 11:22 WG1637263 1,2,3-Trimethylbenzene U 0.00234 0.00740 1 03/19/2021 11:22 WG1637263 1,3,5-Trimethylbenzene U 0.00296 0.00740 1 03/19/2021 11:22 WG1637263 Vinyl chloride U 0.00172 0.00370 1 03/19/2021 11:22 WG1637263 Xylenes, Total U 0.00130 0.00962 1 03/19/2021 11:22 WG1637263 (S) Toluene-d8 112 75.0-131 03/19/2021 11:22 WG1637263
(S) Toluene-d8 102 75.0-131 03/23/2021 22:02 WG1639065
(S) 4-Bromofluorobenzene 88.9 67.0-138 03/19/2021 11:22 WG1637263 (S) 4-Bromofluorobenzene 92.8 67.0-138 03/23/2021 22:02 WG1639065 (S) 1,2-Dichloroethane-d4 96.0 70.0-130 03/19/2021 11:22 WG1637263 (S) 1,2-Dichloroethane-d4 76.0 70.0-130 03/23/2021 22:02 WG1639065 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 2.02 J 0.909 4.96 1 03/18/2021 19:41 WG1636135 C22-C32 Hydrocarbons U 1.65 4.96 1 03/18/2021 19:41 WG1636135 C32-C40 Hydrocarbons U 1.65 4.96 1 03/18/2021 19:41 WG1636135 (S) o-Terphenyl 74.8 18.0-148 03/18/2021 19:41 WG1636135 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 717 of 1252 11 of 27 WG1636652 QUALITY CONTROL SUMMARY
Total Solids by Method 2540 G-2011 L1327778-01,02,03
Method Blank (MB)
(MB) R3632676-1 03/18/21 17:02
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.000
L1327770-13 Original Sample (OS) • Duplicate (DUP)
(OS) L1327770-13 03/18/21 17:02 • (DUP) R3632676-3 03/18/21 17:02 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 87.7 88.4 1 0.819 10
Laboratory Control Sample (LCS)
(LCS) R3632676-2 03/18/21 17:02
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 718 of 1252 12 of 27 WG1637800 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC) by Method 8015 L1327778-01,02,03 Method Blank (MB)
(MB) R3633040-2 03/20/21 11:49
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 97.1 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3633040-1 03/20/21 11:05
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 5.24 95.3 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 111 77.0-120
L1327778-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1327778-01 03/20/21 14:35 • (MS) R3633040-3 03/20/21 21:12 • (MSD) R3633040-4 03/20/21 21:34 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
TPHG C5 - C12 6.72 U 1.54 3.15 22.9 46.9 1 10.0-141 J3 68.8 29 (S)
a,a,a-Trifluorotoluene(FID) 86.2 93.0 77.0-120
L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/20/21 19:22 • (MS) R3633040-5 03/20/21 21:56 • (MSD) R3633040-6 03/20/21 22:18 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
TPHG C5 - C12 6.83 U 0.993 2.47 14.5 36.2 1 10.0-141 J3 85.3 29 (S)
a,a,a-Trifluorotoluene(FID) 86.7 94.5 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 719 of 1252 13 of 27 WG1637263 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 Method Blank (MB)
(MB) R3633732-3 03/19/21 08:05
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 720 of 1252 14 of 27 WG1637263 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 Method Blank (MB)
(MB) R3633732-3 03/19/21 08:05
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) 0.103 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 114 75.0-131
(S) 4-Bromofluorobenzene 89.7 67.0-138
(S) 1,2-Dichloroethane-d4 88.8 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3633732-1 03/19/21 06:49 • (LCSD) R3633732-2 03/19/21 07:08 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Acetone 0.625 1.37 1.23 219 197 10.0-160 J4 J4 10.8 31
Acrylonitrile 0.625 0.936 0.872 150 140 45.0-153 7.08 22 Benzene 0.125 0.105 0.101 84.0 80.8 70.0-123 3.88 20
Bromobenzene 0.125 0.120 0.118 96.0 94.4 73.0-121 1.68 20 Bromodichloromethane 0.125 0.113 0.106 90.4 84.8 73.0-121 6.39 20 Bromoform 0.125 0.132 0.128 106 102 64.0-132 3.08 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 721 of 1252 15 of 27 WG1637263 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3633732-1 03/19/21 06:49 • (LCSD) R3633732-2 03/19/21 07:08 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Bromomethane 0.125 0.112 0.103 89.6 82.4 56.0-147 8.37 20 n-Butylbenzene 0.125 0.0997 0.103 79.8 82.4 68.0-135 3.26 20 sec-Butylbenzene 0.125 0.111 0.113 88.8 90.4 74.0-130 1.79 20 tert-Butylbenzene 0.125 0.108 0.109 86.4 87.2 75.0-127 0.922 20 Carbon tetrachloride 0.125 0.102 0.107 81.6 85.6 66.0-128 4.78 20 Chlorobenzene 0.125 0.120 0.115 96.0 92.0 76.0-128 4.26 20 Chlorodibromomethane 0.125 0.124 0.119 99.2 95.2 74.0-127 4.12 20 Chloroethane 0.125 0.107 0.106 85.6 84.8 61.0-134 0.939 20 Chloroform 0.125 0.107 0.102 85.6 81.6 72.0-123 4.78 20 Chloromethane 0.125 0.112 0.108 89.6 86.4 51.0-138 3.64 20 2-Chlorotoluene 0.125 0.118 0.119 94.4 95.2 75.0-124 0.844 20 4-Chlorotoluene 0.125 0.120 0.118 96.0 94.4 75.0-124 1.68 20 1,2-Dibromo-3-Chloropropane 0.125 0.137 0.127 110 102 59.0-130 7.58 20 1,2-Dibromoethane 0.125 0.125 0.120 100 96.0 74.0-128 4.08 20 Dibromomethane 0.125 0.109 0.101 87.2 80.8 75.0-122 7.62 20 1,2-Dichlorobenzene 0.125 0.119 0.118 95.2 94.4 76.0-124 0.844 20 1,3-Dichlorobenzene 0.125 0.116 0.118 92.8 94.4 76.0-125 1.71 20 1,4-Dichlorobenzene 0.125 0.115 0.112 92.0 89.6 77.0-121 2.64 20 Dichlorodifluoromethane 0.125 0.101 0.0955 80.8 76.4 43.0-156 5.60 20 1,1-Dichloroethane 0.125 0.106 0.107 84.8 85.6 70.0-127 0.939 20 1,2-Dichloroethane 0.125 0.108 0.105 86.4 84.0 65.0-131 2.82 20 1,1-Dichloroethene 0.125 0.112 0.108 89.6 86.4 65.0-131 3.64 20 cis-1,2-Dichloroethene 0.125 0.103 0.100 82.4 80.0 73.0-125 2.96 20 trans-1,2-Dichloroethene 0.125 0.108 0.104 86.4 83.2 71.0-125 3.77 20 1,2-Dichloropropane 0.125 0.121 0.117 96.8 93.6 74.0-125 3.36 20 1,1-Dichloropropene 0.125 0.106 0.106 84.8 84.8 73.0-125 0.000 20 1,3-Dichloropropane 0.125 0.126 0.119 101 95.2 80.0-125 5.71 20 cis-1,3-Dichloropropene 0.125 0.106 0.103 84.8 82.4 76.0-127 2.87 20 trans-1,3-Dichloropropene 0.125 0.123 0.117 98.4 93.6 73.0-127 5.00 20 2,2-Dichloropropane 0.125 0.0954 0.101 76.3 80.8 59.0-135 5.70 20 Di-isopropyl ether 0.125 0.118 0.119 94.4 95.2 60.0-136 0.844 20 Ethylbenzene 0.125 0.117 0.114 93.6 91.2 74.0-126 2.60 20 Hexachloro-1,3-butadiene 0.125 0.0975 0.0959 78.0 76.7 57.0-150 1.65 20 Isopropylbenzene 0.125 0.106 0.107 84.8 85.6 72.0-127 0.939 20 p-Isopropyltoluene 0.125 0.104 0.107 83.2 85.6 72.0-133 2.84 20 2-Butanone (MEK) 0.625 0.905 0.907 145 145 30.0-160 0.221 24 Methylene Chloride 0.125 0.103 0.104 82.4 83.2 68.0-123 0.966 20 4-Methyl-2-pentanone (MIBK) 0.625 0.829 0.769 133 123 56.0-143 7.51 20 Methyl tert-butyl ether 0.125 0.0976 0.0979 78.1 78.3 66.0-132 0.307 20 Naphthalene 0.125 0.102 0.102 81.6 81.6 59.0-130 0.000 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 722 of 1252 16 of 27 WG1637263 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3633732-1 03/19/21 06:49 • (LCSD) R3633732-2 03/19/21 07:08 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
n-Propylbenzene 0.125 0.119 0.118 95.2 94.4 74.0-126 0.844 20 Styrene 0.125 0.110 0.109 88.0 87.2 72.0-127 0.913 20
1,1,1,2-Tetrachloroethane 0.125 0.109 0.110 87.2 88.0 74.0-129 0.913 20 1,1,2,2-Tetrachloroethane 0.125 0.139 0.138 111 110 68.0-128 0.722 20 Toluene 0.125 0.119 0.115 95.2 92.0 75.0-121 3.42 20
1,1,2-Trichlorotrifluoroethane 0.125 0.112 0.106 89.6 84.8 61.0-139 5.50 20 1,2,3-Trichlorobenzene 0.125 0.0860 0.0919 68.8 73.5 59.0-139 6.63 20 1,2,4-Trichlorobenzene 0.125 0.0906 0.0964 72.5 77.1 62.0-137 6.20 20 1,1,1-Trichloroethane 0.125 0.0912 0.0992 73.0 79.4 69.0-126 8.40 20 1,1,2-Trichloroethane 0.125 0.120 0.116 96.0 92.8 78.0-123 3.39 20 Trichloroethene 0.125 0.109 0.103 87.2 82.4 76.0-126 5.66 20 Trichlorofluoromethane 0.125 0.0955 0.0962 76.4 77.0 61.0-142 0.730 20 1,2,3-Trichloropropane 0.125 0.143 0.139 114 111 67.0-129 2.84 20 1,2,3-Trimethylbenzene 0.125 0.108 0.110 86.4 88.0 74.0-124 1.83 20 1,2,4-Trimethylbenzene 0.125 0.110 0.110 88.0 88.0 70.0-126 0.000 20 1,3,5-Trimethylbenzene 0.125 0.112 0.110 89.6 88.0 73.0-127 1.80 20 Vinyl chloride 0.125 0.106 0.0976 84.8 78.1 63.0-134 8.25 20 Xylenes, Total 0.375 0.341 0.334 90.9 89.1 72.0-127 2.07 20 (S) Toluene-d8 108 106 75.0-131
(S) 4-Bromofluorobenzene 94.4 93.1 67.0-138
(S) 1,2-Dichloroethane-d4 104 103 70.0-130
L1327778-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1327778-01 03/19/21 10:44 • (MS) R3633732-4 03/19/21 15:29 • (MSD) R3633732-5 03/19/21 15:48 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Acetone 0.904 U 1.10 0.749 121 82.9 1 10.0-160 37.7 40
Acrylonitrile 0.904 U 0.828 0.600 91.7 66.4 1 10.0-160 32.0 40 Benzene 0.181 U 0.0743 0.0912 41.1 50.5 1 10.0-149 20.4 37 Bromobenzene 0.181 U 0.122 0.121 67.4 66.7 1 10.0-156 0.955 38 Bromodichloromethane 0.181 U 0.101 0.0998 56.0 55.2 1 10.0-143 1.44 37 Bromoform 0.181 U 0.150 0.120 83.2 66.6 1 10.0-146 22.1 36 Bromomethane 0.181 U 0.0496 0.0675 27.4 37.4 1 10.0-149 30.6 38 n-Butylbenzene 0.181 U 0.0765 0.0905 42.3 50.1 1 10.0-160 16.8 40 sec-Butylbenzene 0.181 U 0.0849 0.105 47.0 57.9 1 10.0-159 20.9 39 tert-Butylbenzene 0.181 U 0.0859 0.102 47.5 56.5 1 10.0-156 17.2 39 Carbon tetrachloride 0.181 U 0.0629 0.0935 34.8 51.8 1 10.0-145 J3 39.2 37 Chlorobenzene 0.181 U 0.0990 0.106 54.8 58.9 1 10.0-152 7.18 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 723 of 1252 17 of 27 WG1637263 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 L1327778-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1327778-01 03/19/21 10:44 • (MS) R3633732-4 03/19/21 15:29 • (MSD) R3633732-5 03/19/21 15:48 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Chlorodibromomethane 0.181 U 0.134 0.115 73.9 63.8 1 10.0-146 14.6 37 Chloroethane 0.181 U 0.0320 0.0421 17.7 23.3 1 10.0-146 27.3 40 Chloroform 0.181 U 0.0831 0.0931 46.0 51.5 1 10.0-146 11.3 37 Chloromethane 0.181 U 0.0693 0.0901 38.3 49.8 1 10.0-159 26.1 37 2-Chlorotoluene 0.181 U 0.0944 0.107 52.2 59.2 1 10.0-159 12.5 38 4-Chlorotoluene 0.181 U 0.102 0.109 56.3 60.6 1 10.0-155 7.26 39 1,2-Dibromo-3-Chloropropane 0.181 U 0.160 0.120 88.8 66.4 1 10.0-151 28.9 39 1,2-Dibromoethane 0.181 U 0.145 0.121 80.0 67.0 1 10.0-148 17.6 34 Dibromomethane 0.181 U 0.103 0.0963 57.1 53.3 1 10.0-147 6.96 35 1,2-Dichlorobenzene 0.181 U 0.115 0.107 63.7 59.2 1 10.0-155 7.29 37 1,3-Dichlorobenzene 0.181 U 0.103 0.104 57.0 57.4 1 10.0-153 0.839 38 1,4-Dichlorobenzene 0.181 U 0.104 0.104 57.8 57.5 1 10.0-151 0.416 38 Dichlorodifluoromethane 0.181 U 0.0646 0.100 35.8 55.5 1 10.0-160 J3 43.3 35 1,1-Dichloroethane 0.181 U 0.0802 0.0967 44.4 53.5 1 10.0-147 18.6 37 1,2-Dichloroethane 0.181 U 0.108 0.0886 59.9 49.0 1 10.0-148 20.0 35 1,1-Dichloroethene 0.181 U 0.0669 0.0998 37.0 55.2 1 10.0-155 J3 39.4 37 cis-1,2-Dichloroethene 0.181 U 0.0734 0.0866 40.6 47.9 1 10.0-149 16.4 37 trans-1,2-Dichloroethene 0.181 U 0.0636 0.0830 35.2 45.9 1 10.0-150 26.4 37 1,2-Dichloropropane 0.181 U 0.101 0.112 55.7 62.1 1 10.0-148 10.9 37 1,1-Dichloropropene 0.181 U 0.0636 0.0869 35.2 48.1 1 10.0-153 30.9 35 1,3-Dichloropropane 0.181 U 0.143 0.126 79.2 69.8 1 10.0-154 12.6 35 cis-1,3-Dichloropropene 0.181 U 0.105 0.101 58.2 56.0 1 10.0-151 3.92 37 trans-1,3-Dichloropropene 0.181 U 0.142 0.125 78.6 69.4 1 10.0-148 12.5 37 2,2-Dichloropropane 0.181 U 0.0649 0.0886 35.9 49.0 1 10.0-138 30.9 36 Di-isopropyl ether 0.181 U 0.113 0.113 62.3 62.7 1 10.0-147 0.640 36 Ethylbenzene 0.181 U 0.0801 0.0985 44.3 54.5 1 10.0-160 20.6 38 Hexachloro-1,3-butadiene 0.181 U 0.0808 0.0862 44.7 47.7 1 10.0-160 6.41 40 Isopropylbenzene 0.181 U 0.0720 0.0883 39.8 48.9 1 10.0-155 20.4 38 p-Isopropyltoluene 0.181 U 0.0836 0.0964 46.2 53.4 1 10.0-160 14.3 40 2-Butanone (MEK) 0.904 0.124 1.23 0.908 123 86.8 1 10.0-160 30.3 40 Methylene Chloride 0.181 U 0.105 0.108 58.1 59.8 1 10.0-141 2.85 37 4-Methyl-2-pentanone (MIBK) 0.904 U 1.08 0.791 119 87.5 1 10.0-160 30.7 35 Methyl tert-butyl ether 0.181 U 0.108 0.102 60.0 56.6 1 11.0-147 5.76 35 Naphthalene 0.181 U 0.105 0.0902 58.0 49.9 1 10.0-160 15.0 36 n-Propylbenzene 0.181 U 0.0891 0.107 49.3 59.3 1 10.0-158 18.4 38 Styrene 0.181 U 0.0901 0.0925 49.8 51.2 1 10.0-160 2.69 40 1,1,1,2-Tetrachloroethane 0.181 U 0.0959 0.0977 53.0 54.1 1 10.0-149 1.94 39 1,1,2,2-Tetrachloroethane 0.181 U 0.211 0.159 117 88.0 1 10.0-160 28.1 35 Toluene 0.181 U 0.0889 0.107 49.2 59.2 1 10.0-156 18.5 38 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 L1327778-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1327778-01 03/19/21 10:44 • (MS) R3633732-4 03/19/21 15:29 • (MSD) R3633732-5 03/19/21 15:48 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
1,1,2-Trichlorotrifluoroethane 0.181 U 0.0704 0.111 39.0 61.4 1 10.0-160 J3 44.8 36 1,2,3-Trichlorobenzene 0.181 U 0.0866 0.0875 47.9 48.4 1 10.0-160 0.997 40 1,2,4-Trichlorobenzene 0.181 U 0.0849 0.0849 47.0 47.0 1 10.0-160 0.000 40 1,1,1-Trichloroethane 0.181 U 0.0674 0.0843 37.3 46.6 1 10.0-144 22.3 35 1,1,2-Trichloroethane 0.181 U 0.145 0.125 80.0 69.1 1 10.0-160 14.6 35 Trichloroethene 0.181 U 0.0669 0.0896 37.0 49.6 1 10.0-156 29.0 38 Trichlorofluoromethane 0.181 U 0.0383 0.0568 21.2 31.4 1 10.0-160 38.9 40 1,2,3-Trichloropropane 0.181 U 0.210 0.150 116 83.2 1 10.0-156 32.9 35 1,2,3-Trimethylbenzene 0.181 U 0.0980 0.100 54.2 55.4 1 10.0-160 2.19 36 1,2,4-Trimethylbenzene 0.181 U 0.0876 0.0986 48.5 54.6 1 10.0-160 11.8 36 1,3,5-Trimethylbenzene 0.181 U 0.0893 0.0999 49.4 55.3 1 10.0-160 11.2 38 Vinyl chloride 0.181 U 0.0607 0.0915 33.6 50.6 1 10.0-160 J3 40.5 37 Xylenes, Total 0.542 U 0.234 0.263 43.2 48.5 1 10.0-160 11.6 38 (S) Toluene-d8 112 111 75.0-131
(S) 4-Bromofluorobenzene 89.8 88.4 67.0-138
(S) 1,2-Dichloroethane-d4 93.8 92.8 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1327778-01,02,03 Method Blank (MB)
(MB) R3634111-2 03/23/21 19:29
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Tetrachloroethene U 0.000896 0.00250
(S) Toluene-d8 102 75.0-131
(S) 4-Bromofluorobenzene 94.8 67.0-138
(S) 1,2-Dichloroethane-d4 76.3 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3634111-1 03/23/21 18:51
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Tetrachloroethene 0.125 0.108 86.4 70.0-136
(S) Toluene-d8 100 75.0-131
(S) 4-Bromofluorobenzene 91.8 67.0-138
(S) 1,2-Dichloroethane-d4 77.4 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Semi-Volatile Organic Compounds (GC) by Method 8015 L1327778-01,02,03 Method Blank (MB)
(MB) R3632479-1 03/18/21 18:25
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
C12-C22 Hydrocarbons U 0.733 4.00
C22-C32 Hydrocarbons U 1.33 4.00
C32-C40 Hydrocarbons U 1.33 4.00
(S) o-Terphenyl 91.0 18.0-148
Laboratory Control Sample (LCS)
(LCS) R3632479-2 03/18/21 18:37
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
C22-C32 Hydrocarbons 25.0 18.5 74.0 50.0-150
C12-C22 Hydrocarbons 25.0 19.7 78.8 50.0-150
(S) o-Terphenyl 78.7 18.0-148
L1327778-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1327778-01 03/18/21 18:50 • (MS) R3632479-3 03/18/21 19:03 • (MSD) R3632479-4 03/18/21 19:15 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
C22-C32 Hydrocarbons 29.6 U 20.0 19.1 67.8 64.2 1 50.0-150 5.00 20 C12-C22 Hydrocarbons 29.6 1.52 25.7 22.0 81.7 69.0 1 50.0-150 15.4 20 (S) o-Terphenyl 71.2 69.0 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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GLOSSARY OF TERMS
Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative.

Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received.

Abbreviations and Definitions
(dry) Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].

MDL Method Detection Limit.

MDL (dry) Method Detection Limit.

RDL Reported Detection Limit.

RDL (dry) Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

SDG Sample Delivery Group.
(S)
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Dilution
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor.

Limits
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges.

Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG.

Qualifier
This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.

Result
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Case Narrative (Cn)
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report.

Quality Control
Summary (Qc)
This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material.

Sample Chain of
Custody (Sc)
This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis.

Sample Results (Sr)
This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
B The same analyte is found in the associated blank.

J The identification of the analyte is acceptable; the reported value is an estimate.

J3 The associated batch QC was outside the established quality control range for precision.

J4 The associated batch QC was outside the established quality control range for accuracy. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1327778 03/24/21 10:41 728 of 1252 22 of 27 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

ACCREDITATIONS & LOCATIONS
¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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ANALYTICAL REPORT
March 24, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1328417
Samples Received: 03/18/2021
Project Number: 01-LP-001 TASK 2
Description: Lane Partners, 222 E. 4th Ave
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 11:11 1 of 26 March 24, 2021
Jared Starkey
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 6
SB-06-COMP L1328417-01 6
SB-09-COMP L1328417-02 8
SB-10-COMP L1328417-03 10
Qc: Quality Control Summary 12
Total Solids by Method 2540 G-2011 12
Volatile Organic Compounds (GC) by Method 8015 13
Volatile Organic Compounds (GC/MS) by Method 8260B 14
Semi-Volatile Organic Compounds (GC) by Method 8015 20
Gl: Glossary of Terms 21
Al: Accreditations & Locations 22
Sc: Sample Chain of Custody 23
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-06-COMP L1328417-01 Solid Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1637327 1 03/20/21 15:11 03/20/21 15:34 MT Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1637800 1 03/18/21 17:48 03/20/21 19:22 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1638031 1 03/18/21 17:48 03/21/21 00:25 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639129 1 03/23/21 16:13 03/24/21 04:17 JN Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-09-COMP L1328417-02 Solid Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1637327 1 03/20/21 15:11 03/20/21 15:34 MT Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1637800 1 03/18/21 17:48 03/20/21 19:44 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1638031 1 03/18/21 17:48 03/21/21 00:44 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639129 1 03/23/21 16:13 03/24/21 05:00 JN Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-10-COMP L1328417-03 Solid Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1637327 1 03/20/21 15:11 03/20/21 15:34 MT Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1637800 1 03/18/21 17:48 03/20/21 20:06 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1638031 1 03/18/21 17:48 03/21/21 01:02 JHH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639129 1 03/23/21 16:13 03/24/21 05:15 JN Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 11:11 4 of 26 Jared Starkey
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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DETECTION SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-06-COMP L1328417-01 2-Butanone (MEK) 0.142 B J 0.0941 0.148 1 03/21/2021 00:25 WG1638031 SB-06-COMP L1328417-01 Tetrachloroethene 0.00423 0.00133 0.00371 1 03/21/2021 00:25 WG1638031 SB-06-COMP L1328417-01 1,2,4-Trimethylbenzene 0.00385 J 0.00234 0.00741 1 03/21/2021 00:25 WG1638031 SB-06-COMP L1328417-01 Xylenes, Total 0.00261 J 0.00130 0.00964 1 03/21/2021 00:25 WG1638031 SB-09-COMP L1328417-02 2-Butanone (MEK) 0.150 B 0.0827 0.130 1 03/21/2021 00:44 WG1638031 SB-09-COMP L1328417-02 Tetrachloroethene 0.00349 0.00117 0.00326 1 03/21/2021 00:44 WG1638031 SB-10-COMP L1328417-03 2-Butanone (MEK) 0.119 B J 0.0806 0.127 1 03/21/2021 01:02 WG1638031 SB-10-COMP L1328417-03 Tetrachloroethene 0.00352 0.00114 0.00317 1 03/21/2021 01:02 WG1638031 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-06-COMP L1328417-01 C12-C22 Hydrocarbons 0.933 J 0.910 4.96 1 03/24/2021 04:17 WG1639129 SB-09-COMP L1328417-02 C12-C22 Hydrocarbons 1.12 J 0.844 4.60 1 03/24/2021 05:00 WG1639129 SB-10-COMP L1328417-03 C12-C22 Hydrocarbons 1.12 J 0.832 4.54 1 03/24/2021 05:15 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1328417
SB-06-COMP
Collected date/time: 03/16/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 80.6 1 03/20/2021 15:34 WG1637327
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U J3 0.0412 0.124 1 03/20/2021 19:22 WG1637800 (S) a,a,a-Trifluorotoluene(FID) 91.5 77.0-120 03/20/2021 19:22 WG1637800 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 J4 0.0541 0.0741 1 03/21/2021 00:25 WG1638031 Acrylonitrile U 0.00535 0.0185 1 03/21/2021 00:25 WG1638031 Benzene U 0.000692 0.00148 1 03/21/2021 00:25 WG1638031 Bromobenzene U 0.00133 0.0185 1 03/21/2021 00:25 WG1638031 Bromodichloromethane U 0.00107 0.00371 1 03/21/2021 00:25 WG1638031 Bromoform U 0.00173 0.0371 1 03/21/2021 00:25 WG1638031 Bromomethane U 0.00292 0.0185 1 03/21/2021 00:25 WG1638031 n-Butylbenzene U 0.00778 0.0185 1 03/21/2021 00:25 WG1638031 sec-Butylbenzene U 0.00427 0.0185 1 03/21/2021 00:25 WG1638031 tert-Butylbenzene U 0.00289 0.00741 1 03/21/2021 00:25 WG1638031 Carbon tetrachloride U 0.00133 0.00741 1 03/21/2021 00:25 WG1638031 Chlorobenzene U 0.000311 0.00371 1 03/21/2021 00:25 WG1638031 Chlorodibromomethane U 0.000907 0.00371 1 03/21/2021 00:25 WG1638031 Chloroethane U 0.00252 0.00741 1 03/21/2021 00:25 WG1638031 Chloroform U 0.00153 0.00371 1 03/21/2021 00:25 WG1638031 Chloromethane U 0.00645 0.0185 1 03/21/2021 00:25 WG1638031 2-Chlorotoluene U 0.00128 0.00371 1 03/21/2021 00:25 WG1638031 4-Chlorotoluene U 0.000667 0.00741 1 03/21/2021 00:25 WG1638031 1,2-Dibromo-3-Chloropropane U 0.00578 0.0371 1 03/21/2021 00:25 WG1638031 1,2-Dibromoethane U 0.000961 0.00371 1 03/21/2021 00:25 WG1638031 Dibromomethane U 0.00111 0.00741 1 03/21/2021 00:25 WG1638031 1,2-Dichlorobenzene U 0.000630 0.00741 1 03/21/2021 00:25 WG1638031 1,3-Dichlorobenzene U 0.000890 0.00741 1 03/21/2021 00:25 WG1638031 1,4-Dichlorobenzene U 0.00104 0.00741 1 03/21/2021 00:25 WG1638031 Dichlorodifluoromethane U 0.00239 0.00371 1 03/21/2021 00:25 WG1638031 1,1-Dichloroethane U 0.000728 0.00371 1 03/21/2021 00:25 WG1638031 1,2-Dichloroethane U 0.000962 0.00371 1 03/21/2021 00:25 WG1638031 1,1-Dichloroethene U 0.000898 0.00371 1 03/21/2021 00:25 WG1638031 cis-1,2-Dichloroethene U 0.00109 0.00371 1 03/21/2021 00:25 WG1638031 trans-1,2-Dichloroethene U 0.00154 0.00741 1 03/21/2021 00:25 WG1638031 1,2-Dichloropropane U 0.00211 0.00741 1 03/21/2021 00:25 WG1638031 1,1-Dichloropropene U 0.00120 0.00371 1 03/21/2021 00:25 WG1638031 1,3-Dichloropropane U 0.000743 0.00741 1 03/21/2021 00:25 WG1638031 cis-1,3-Dichloropropene U 0.00112 0.00371 1 03/21/2021 00:25 WG1638031 trans-1,3-Dichloropropene U 0.00169 0.00741 1 03/21/2021 00:25 WG1638031 2,2-Dichloropropane U 0.00205 0.00371 1 03/21/2021 00:25 WG1638031 Di-isopropyl ether U 0.000608 0.00148 1 03/21/2021 00:25 WG1638031 Ethylbenzene U 0.00109 0.00371 1 03/21/2021 00:25 WG1638031 Hexachloro-1,3-butadiene U 0.00890 0.0371 1 03/21/2021 00:25 WG1638031 Isopropylbenzene U 0.000630 0.00371 1 03/21/2021 00:25 WG1638031 p-Isopropyltoluene U 0.00378 0.00741 1 03/21/2021 00:25 WG1638031 2-Butanone (MEK) 0.142 B J 0.0941 0.148 1 03/21/2021 00:25 WG1638031 Methylene Chloride U J3 0.00984 0.0371 1 03/21/2021 00:25 WG1638031 4-Methyl-2-pentanone (MIBK) U 0.00338 0.0371 1 03/21/2021 00:25 WG1638031 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 735 of 1252 6 of 26 SAMPLE RESULTS - 01
L1328417
SB-06-COMP
Collected date/time: 03/16/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000519 0.00148 1 03/21/2021 00:25 WG1638031 Naphthalene U 0.00723 0.0185 1 03/21/2021 00:25 WG1638031 n-Propylbenzene U 0.00141 0.00741 1 03/21/2021 00:25 WG1638031 Styrene U 0.000340 0.0185 1 03/21/2021 00:25 WG1638031
1,1,1,2-Tetrachloroethane U 0.00141 0.00371 1 03/21/2021 00:25 WG1638031 1,1,2,2-Tetrachloroethane U 0.00103 0.00371 1 03/21/2021 00:25 WG1638031 1,1,2-Trichlorotrifluoroethane U 0.00112 0.00371 1 03/21/2021 00:25 WG1638031 Tetrachloroethene 0.00423 0.00133 0.00371 1 03/21/2021 00:25 WG1638031 Toluene U 0.00193 0.00741 1 03/21/2021 00:25 WG1638031
1,2,3-Trichlorobenzene U J4 0.0109 0.0185 1 03/21/2021 00:25 WG1638031 1,2,4-Trichlorobenzene U 0.00652 0.0185 1 03/21/2021 00:25 WG1638031 1,1,1-Trichloroethane U 0.00137 0.00371 1 03/21/2021 00:25 WG1638031 1,1,2-Trichloroethane U 0.000885 0.00371 1 03/21/2021 00:25 WG1638031 Trichloroethene U 0.000866 0.00148 1 03/21/2021 00:25 WG1638031 Trichlorofluoromethane U 0.00123 0.00371 1 03/21/2021 00:25 WG1638031 1,2,3-Trichloropropane U 0.00240 0.0185 1 03/21/2021 00:25 WG1638031 1,2,4-Trimethylbenzene 0.00385 J 0.00234 0.00741 1 03/21/2021 00:25 WG1638031 1,2,3-Trimethylbenzene U 0.00234 0.00741 1 03/21/2021 00:25 WG1638031 1,3,5-Trimethylbenzene U 0.00297 0.00741 1 03/21/2021 00:25 WG1638031 Vinyl chloride U 0.00172 0.00371 1 03/21/2021 00:25 WG1638031 Xylenes, Total 0.00261 J 0.00130 0.00964 1 03/21/2021 00:25 WG1638031 (S) Toluene-d8 114 75.0-131 03/21/2021 00:25 WG1638031
(S) 4-Bromofluorobenzene 87.9 67.0-138 03/21/2021 00:25 WG1638031 (S) 1,2-Dichloroethane-d4 89.6 70.0-130 03/21/2021 00:25 WG1638031 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 0.933 J 0.910 4.96 1 03/24/2021 04:17 WG1639129 C22-C32 Hydrocarbons U 1.65 4.96 1 03/24/2021 04:17 WG1639129 C32-C40 Hydrocarbons U 1.65 4.96 1 03/24/2021 04:17 WG1639129 (S) o-Terphenyl 73.4 18.0-148 03/24/2021 04:17 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 736 of 1252 7 of 26 SAMPLE RESULTS - 02
L1328417
SB-09-COMP
Collected date/time: 03/16/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 86.9 1 03/20/2021 15:34 WG1637327
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0382 0.115 1 03/20/2021 19:44 WG1637800 (S) a,a,a-Trifluorotoluene(FID) 91.5 77.0-120 03/20/2021 19:44 WG1637800 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0475 0.0651 1 03/21/2021 00:44 WG1638031 Acrylonitrile U 0.00470 0.0163 1 03/21/2021 00:44 WG1638031 Benzene U 0.000608 0.00130 1 03/21/2021 00:44 WG1638031 Bromobenzene U 0.00117 0.0163 1 03/21/2021 00:44 WG1638031 Bromodichloromethane U 0.000944 0.00326 1 03/21/2021 00:44 WG1638031 Bromoform U 0.00152 0.0326 1 03/21/2021 00:44 WG1638031 Bromomethane U 0.00257 0.0163 1 03/21/2021 00:44 WG1638031 n-Butylbenzene U 0.00684 0.0163 1 03/21/2021 00:44 WG1638031 sec-Butylbenzene U 0.00375 0.0163 1 03/21/2021 00:44 WG1638031 tert-Butylbenzene U 0.00254 0.00651 1 03/21/2021 00:44 WG1638031 Carbon tetrachloride U 0.00117 0.00651 1 03/21/2021 00:44 WG1638031 Chlorobenzene U 0.000273 0.00326 1 03/21/2021 00:44 WG1638031 Chlorodibromomethane U 0.000797 0.00326 1 03/21/2021 00:44 WG1638031 Chloroethane U 0.00221 0.00651 1 03/21/2021 00:44 WG1638031 Chloroform U 0.00134 0.00326 1 03/21/2021 00:44 WG1638031 Chloromethane U 0.00567 0.0163 1 03/21/2021 00:44 WG1638031 2-Chlorotoluene U 0.00113 0.00326 1 03/21/2021 00:44 WG1638031 4-Chlorotoluene U 0.000586 0.00651 1 03/21/2021 00:44 WG1638031 1,2-Dibromo-3-Chloropropane U 0.00508 0.0326 1 03/21/2021 00:44 WG1638031 1,2-Dibromoethane U 0.000844 0.00326 1 03/21/2021 00:44 WG1638031 Dibromomethane U 0.000977 0.00651 1 03/21/2021 00:44 WG1638031 1,2-Dichlorobenzene U 0.000553 0.00651 1 03/21/2021 00:44 WG1638031 1,3-Dichlorobenzene U 0.000781 0.00651 1 03/21/2021 00:44 WG1638031 1,4-Dichlorobenzene U 0.000912 0.00651 1 03/21/2021 00:44 WG1638031 Dichlorodifluoromethane U 0.00210 0.00326 1 03/21/2021 00:44 WG1638031 1,1-Dichloroethane U 0.000639 0.00326 1 03/21/2021 00:44 WG1638031 1,2-Dichloroethane U 0.000845 0.00326 1 03/21/2021 00:44 WG1638031 1,1-Dichloroethene U 0.000789 0.00326 1 03/21/2021 00:44 WG1638031 cis-1,2-Dichloroethene U 0.000956 0.00326 1 03/21/2021 00:44 WG1638031 trans-1,2-Dichloroethene U 0.00135 0.00651 1 03/21/2021 00:44 WG1638031 1,2-Dichloropropane U 0.00185 0.00651 1 03/21/2021 00:44 WG1638031 1,1-Dichloropropene U 0.00105 0.00326 1 03/21/2021 00:44 WG1638031 1,3-Dichloropropane U 0.000652 0.00651 1 03/21/2021 00:44 WG1638031 cis-1,3-Dichloropropene U 0.000986 0.00326 1 03/21/2021 00:44 WG1638031 trans-1,3-Dichloropropene U 0.00148 0.00651 1 03/21/2021 00:44 WG1638031 2,2-Dichloropropane U 0.00180 0.00326 1 03/21/2021 00:44 WG1638031 Di-isopropyl ether U 0.000534 0.00130 1 03/21/2021 00:44 WG1638031 Ethylbenzene U 0.000960 0.00326 1 03/21/2021 00:44 WG1638031 Hexachloro-1,3-butadiene U 0.00781 0.0326 1 03/21/2021 00:44 WG1638031 Isopropylbenzene U 0.000553 0.00326 1 03/21/2021 00:44 WG1638031 p-Isopropyltoluene U 0.00332 0.00651 1 03/21/2021 00:44 WG1638031 2-Butanone (MEK) 0.150 B 0.0827 0.130 1 03/21/2021 00:44 WG1638031 Methylene Chloride U 0.00865 0.0326 1 03/21/2021 00:44 WG1638031 4-Methyl-2-pentanone (MIBK) U 0.00297 0.0326 1 03/21/2021 00:44 WG1638031 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 737 of 1252 8 of 26 SAMPLE RESULTS - 02
L1328417
SB-09-COMP
Collected date/time: 03/16/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000456 0.00130 1 03/21/2021 00:44 WG1638031 Naphthalene U 0.00636 0.0163 1 03/21/2021 00:44 WG1638031 n-Propylbenzene U 0.00124 0.00651 1 03/21/2021 00:44 WG1638031 Styrene U 0.000298 0.0163 1 03/21/2021 00:44 WG1638031
1,1,1,2-Tetrachloroethane U 0.00123 0.00326 1 03/21/2021 00:44 WG1638031 1,1,2,2-Tetrachloroethane U 0.000905 0.00326 1 03/21/2021 00:44 WG1638031 1,1,2-Trichlorotrifluoroethane U 0.000982 0.00326 1 03/21/2021 00:44 WG1638031 Tetrachloroethene 0.00349 0.00117 0.00326 1 03/21/2021 00:44 WG1638031 Toluene U 0.00169 0.00651 1 03/21/2021 00:44 WG1638031
1,2,3-Trichlorobenzene U J4 0.00955 0.0163 1 03/21/2021 00:44 WG1638031 1,2,4-Trichlorobenzene U 0.00573 0.0163 1 03/21/2021 00:44 WG1638031 1,1,1-Trichloroethane U 0.00120 0.00326 1 03/21/2021 00:44 WG1638031 1,1,2-Trichloroethane U 0.000777 0.00326 1 03/21/2021 00:44 WG1638031 Trichloroethene U 0.000761 0.00130 1 03/21/2021 00:44 WG1638031 Trichlorofluoromethane U 0.00108 0.00326 1 03/21/2021 00:44 WG1638031 1,2,3-Trichloropropane U 0.00211 0.0163 1 03/21/2021 00:44 WG1638031 1,2,4-Trimethylbenzene U 0.00206 0.00651 1 03/21/2021 00:44 WG1638031 1,2,3-Trimethylbenzene U 0.00206 0.00651 1 03/21/2021 00:44 WG1638031 1,3,5-Trimethylbenzene U 0.00260 0.00651 1 03/21/2021 00:44 WG1638031 Vinyl chloride U 0.00151 0.00326 1 03/21/2021 00:44 WG1638031 Xylenes, Total U 0.00115 0.00846 1 03/21/2021 00:44 WG1638031 (S) Toluene-d8 113 75.0-131 03/21/2021 00:44 WG1638031
(S) 4-Bromofluorobenzene 89.8 67.0-138 03/21/2021 00:44 WG1638031 (S) 1,2-Dichloroethane-d4 93.0 70.0-130 03/21/2021 00:44 WG1638031 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 1.12 J 0.844 4.60 1 03/24/2021 05:00 WG1639129 C22-C32 Hydrocarbons U 1.53 4.60 1 03/24/2021 05:00 WG1639129 C32-C40 Hydrocarbons U 1.53 4.60 1 03/24/2021 05:00 WG1639129 (S) o-Terphenyl 63.6 18.0-148 03/24/2021 05:00 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 738 of 1252 9 of 26 SAMPLE RESULTS - 03
L1328417
SB-10-COMP
Collected date/time: 03/16/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 88.2 1 03/20/2021 15:34 WG1637327
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0377 0.113 1 03/20/2021 20:06 WG1637800 (S) a,a,a-Trifluorotoluene(FID) 91.1 77.0-120 03/20/2021 20:06 WG1637800 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0463 0.0635 1 03/21/2021 01:02 WG1638031 Acrylonitrile U 0.00458 0.0159 1 03/21/2021 01:02 WG1638031 Benzene U 0.000593 0.00127 1 03/21/2021 01:02 WG1638031 Bromobenzene U 0.00114 0.0159 1 03/21/2021 01:02 WG1638031 Bromodichloromethane U 0.000920 0.00317 1 03/21/2021 01:02 WG1638031 Bromoform U 0.00149 0.0317 1 03/21/2021 01:02 WG1638031 Bromomethane U 0.00250 0.0159 1 03/21/2021 01:02 WG1638031 n-Butylbenzene U 0.00667 0.0159 1 03/21/2021 01:02 WG1638031 sec-Butylbenzene U 0.00366 0.0159 1 03/21/2021 01:02 WG1638031 tert-Butylbenzene U 0.00248 0.00635 1 03/21/2021 01:02 WG1638031 Carbon tetrachloride U 0.00114 0.00635 1 03/21/2021 01:02 WG1638031 Chlorobenzene U 0.000267 0.00317 1 03/21/2021 01:02 WG1638031 Chlorodibromomethane U 0.000777 0.00317 1 03/21/2021 01:02 WG1638031 Chloroethane U 0.00216 0.00635 1 03/21/2021 01:02 WG1638031 Chloroform U 0.00131 0.00317 1 03/21/2021 01:02 WG1638031 Chloromethane U 0.00552 0.0159 1 03/21/2021 01:02 WG1638031 2-Chlorotoluene U 0.00110 0.00317 1 03/21/2021 01:02 WG1638031 4-Chlorotoluene U 0.000571 0.00635 1 03/21/2021 01:02 WG1638031 1,2-Dibromo-3-Chloropropane U 0.00495 0.0317 1 03/21/2021 01:02 WG1638031 1,2-Dibromoethane U 0.000823 0.00317 1 03/21/2021 01:02 WG1638031 Dibromomethane U 0.000952 0.00635 1 03/21/2021 01:02 WG1638031 1,2-Dichlorobenzene U 0.000540 0.00635 1 03/21/2021 01:02 WG1638031 1,3-Dichlorobenzene U 0.000762 0.00635 1 03/21/2021 01:02 WG1638031 1,4-Dichlorobenzene U 0.000889 0.00635 1 03/21/2021 01:02 WG1638031 Dichlorodifluoromethane U 0.00204 0.00317 1 03/21/2021 01:02 WG1638031 1,1-Dichloroethane U 0.000623 0.00317 1 03/21/2021 01:02 WG1638031 1,2-Dichloroethane U 0.000824 0.00317 1 03/21/2021 01:02 WG1638031 1,1-Dichloroethene U 0.000769 0.00317 1 03/21/2021 01:02 WG1638031 cis-1,2-Dichloroethene U 0.000932 0.00317 1 03/21/2021 01:02 WG1638031 trans-1,2-Dichloroethene U 0.00132 0.00635 1 03/21/2021 01:02 WG1638031 1,2-Dichloropropane U 0.00180 0.00635 1 03/21/2021 01:02 WG1638031 1,1-Dichloropropene U 0.00103 0.00317 1 03/21/2021 01:02 WG1638031 1,3-Dichloropropane U 0.000636 0.00635 1 03/21/2021 01:02 WG1638031 cis-1,3-Dichloropropene U 0.000961 0.00317 1 03/21/2021 01:02 WG1638031 trans-1,3-Dichloropropene U 0.00145 0.00635 1 03/21/2021 01:02 WG1638031 2,2-Dichloropropane U 0.00175 0.00317 1 03/21/2021 01:02 WG1638031 Di-isopropyl ether U 0.000521 0.00127 1 03/21/2021 01:02 WG1638031 Ethylbenzene U 0.000936 0.00317 1 03/21/2021 01:02 WG1638031 Hexachloro-1,3-butadiene U 0.00762 0.0317 1 03/21/2021 01:02 WG1638031 Isopropylbenzene U 0.000540 0.00317 1 03/21/2021 01:02 WG1638031 p-Isopropyltoluene U 0.00324 0.00635 1 03/21/2021 01:02 WG1638031 2-Butanone (MEK) 0.119 B J 0.0806 0.127 1 03/21/2021 01:02 WG1638031 Methylene Chloride U 0.00843 0.0317 1 03/21/2021 01:02 WG1638031 4-Methyl-2-pentanone (MIBK) U 0.00289 0.0317 1 03/21/2021 01:02 WG1638031 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 739 of 1252 10 of 26 SAMPLE RESULTS - 03
L1328417
SB-10-COMP
Collected date/time: 03/16/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Methyl tert-butyl ether U 0.000444 0.00127 1 03/21/2021 01:02 WG1638031 Naphthalene U 0.00620 0.0159 1 03/21/2021 01:02 WG1638031 n-Propylbenzene U 0.00121 0.00635 1 03/21/2021 01:02 WG1638031 Styrene U 0.000291 0.0159 1 03/21/2021 01:02 WG1638031
1,1,1,2-Tetrachloroethane U 0.00120 0.00317 1 03/21/2021 01:02 WG1638031 1,1,2,2-Tetrachloroethane U 0.000882 0.00317 1 03/21/2021 01:02 WG1638031 1,1,2-Trichlorotrifluoroethane U 0.000957 0.00317 1 03/21/2021 01:02 WG1638031 Tetrachloroethene 0.00352 0.00114 0.00317 1 03/21/2021 01:02 WG1638031 Toluene U 0.00165 0.00635 1 03/21/2021 01:02 WG1638031
1,2,3-Trichlorobenzene U J4 0.00931 0.0159 1 03/21/2021 01:02 WG1638031 1,2,4-Trichlorobenzene U 0.00559 0.0159 1 03/21/2021 01:02 WG1638031 1,1,1-Trichloroethane U 0.00117 0.00317 1 03/21/2021 01:02 WG1638031 1,1,2-Trichloroethane U 0.000758 0.00317 1 03/21/2021 01:02 WG1638031 Trichloroethene U 0.000741 0.00127 1 03/21/2021 01:02 WG1638031 Trichlorofluoromethane U 0.00105 0.00317 1 03/21/2021 01:02 WG1638031 1,2,3-Trichloropropane U 0.00206 0.0159 1 03/21/2021 01:02 WG1638031 1,2,4-Trimethylbenzene U 0.00201 0.00635 1 03/21/2021 01:02 WG1638031 1,2,3-Trimethylbenzene U 0.00201 0.00635 1 03/21/2021 01:02 WG1638031 1,3,5-Trimethylbenzene U 0.00254 0.00635 1 03/21/2021 01:02 WG1638031 Vinyl chloride U 0.00147 0.00317 1 03/21/2021 01:02 WG1638031 Xylenes, Total U 0.00112 0.00825 1 03/21/2021 01:02 WG1638031 (S) Toluene-d8 112 75.0-131 03/21/2021 01:02 WG1638031
(S) 4-Bromofluorobenzene 87.0 67.0-138 03/21/2021 01:02 WG1638031 (S) 1,2-Dichloroethane-d4 91.3 70.0-130 03/21/2021 01:02 WG1638031 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 1.12 J 0.832 4.54 1 03/24/2021 05:15 WG1639129 C22-C32 Hydrocarbons U 1.51 4.54 1 03/24/2021 05:15 WG1639129 C32-C40 Hydrocarbons U 1.51 4.54 1 03/24/2021 05:15 WG1639129 (S) o-Terphenyl 62.0 18.0-148 03/24/2021 05:15 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Total Solids by Method 2540 G-2011 L1328417-01,02,03
Method Blank (MB)
(MB) R3633181-1 03/20/21 15:34
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.000
L1328376-02 Original Sample (OS) • Duplicate (DUP)
(OS) L1328376-02 03/20/21 15:34 • (DUP) R3633181-3 03/20/21 15:34 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 85.0 86.1 1 1.20 10
Laboratory Control Sample (LCS)
(LCS) R3633181-2 03/20/21 15:34
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC) by Method 8015 L1328417-01,02,03 Method Blank (MB)
(MB) R3633040-2 03/20/21 11:49
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 97.1 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3633040-1 03/20/21 11:05
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 5.24 95.3 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 111 77.0-120
L1327778-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1327778-01 03/20/21 14:35 • (MS) R3633040-3 03/20/21 21:12 • (MSD) R3633040-4 03/20/21 21:34 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
TPHG C5 - C12 6.72 U 1.54 3.15 22.9 46.9 1 10.0-141 J3 68.8 29 (S)
a,a,a-Trifluorotoluene(FID) 86.2 93.0 77.0-120
L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/20/21 19:22 • (MS) R3633040-5 03/20/21 21:56 • (MSD) R3633040-6 03/20/21 22:18 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
TPHG C5 - C12 6.83 U 0.993 2.47 14.5 36.2 1 10.0-141 J3 85.3 29 (S)
a,a,a-Trifluorotoluene(FID) 86.7 94.5 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328417-01,02,03 Method Blank (MB)
(MB) R3633129-2 03/20/21 20:57
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328417-01,02,03 Method Blank (MB)
(MB) R3633129-2 03/20/21 20:57
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) 0.108 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 111 75.0-131
(S) 4-Bromofluorobenzene 89.4 67.0-138
(S) 1,2-Dichloroethane-d4 90.9 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3633129-1 03/20/21 20:00
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Acetone 0.625 1.31 210 10.0-160 J4
Acrylonitrile 0.625 0.800 128 45.0-153
Benzene 0.125 0.101 80.8 70.0-123
Bromobenzene 0.125 0.122 97.6 73.0-121
Bromodichloromethane 0.125 0.107 85.6 73.0-121
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328417-01,02,03 Laboratory Control Sample (LCS)
(LCS) R3633129-1 03/20/21 20:00
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Bromoform 0.125 0.120 96.0 64.0-132
Bromomethane 0.125 0.109 87.2 56.0-147
n-Butylbenzene 0.125 0.103 82.4 68.0-135
sec-Butylbenzene 0.125 0.113 90.4 74.0-130
tert-Butylbenzene 0.125 0.108 86.4 75.0-127
Carbon tetrachloride 0.125 0.0962 77.0 66.0-128
Chlorobenzene 0.125 0.113 90.4 76.0-128
Chlorodibromomethane 0.125 0.118 94.4 74.0-127
Chloroethane 0.125 0.106 84.8 61.0-134
Chloroform 0.125 0.102 81.6 72.0-123
Chloromethane 0.125 0.107 85.6 51.0-138
2-Chlorotoluene 0.125 0.118 94.4 75.0-124
4-Chlorotoluene 0.125 0.124 99.2 75.0-124
1,2-Dibromo-3-Chloropropane 0.125 0.121 96.8 59.0-130
1,2-Dibromoethane 0.125 0.117 93.6 74.0-128
Dibromomethane 0.125 0.105 84.0 75.0-122
1,2-Dichlorobenzene 0.125 0.112 89.6 76.0-124
1,3-Dichlorobenzene 0.125 0.117 93.6 76.0-125
1,4-Dichlorobenzene 0.125 0.110 88.0 77.0-121
Dichlorodifluoromethane 0.125 0.0867 69.4 43.0-156
1,1-Dichloroethane 0.125 0.108 86.4 70.0-127
1,2-Dichloroethane 0.125 0.105 84.0 65.0-131
1,1-Dichloroethene 0.125 0.106 84.8 65.0-131
cis-1,2-Dichloroethene 0.125 0.0988 79.0 73.0-125
trans-1,2-Dichloroethene 0.125 0.0994 79.5 71.0-125
1,2-Dichloropropane 0.125 0.115 92.0 74.0-125
1,1-Dichloropropene 0.125 0.100 80.0 73.0-125
1,3-Dichloropropane 0.125 0.114 91.2 80.0-125
cis-1,3-Dichloropropene 0.125 0.103 82.4 76.0-127
trans-1,3-Dichloropropene 0.125 0.121 96.8 73.0-127
2,2-Dichloropropane 0.125 0.113 90.4 59.0-135
Di-isopropyl ether 0.125 0.117 93.6 60.0-136
Ethylbenzene 0.125 0.109 87.2 74.0-126
Hexachloro-1,3-butadiene 0.125 0.0774 61.9 57.0-150
Isopropylbenzene 0.125 0.100 80.0 72.0-127
p-Isopropyltoluene 0.125 0.108 86.4 72.0-133
2-Butanone (MEK) 0.625 0.827 132 30.0-160
Methylene Chloride 0.125 0.107 85.6 68.0-123
4-Methyl-2-pentanone (MIBK) 0.625 0.787 126 56.0-143
Methyl tert-butyl ether 0.125 0.0931 74.5 66.0-132
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328417-01,02,03 Laboratory Control Sample (LCS)
(LCS) R3633129-1 03/20/21 20:00
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Naphthalene 0.125 0.0827 66.2 59.0-130
n-Propylbenzene 0.125 0.123 98.4 74.0-126
Styrene 0.125 0.105 84.0 72.0-127
1,1,1,2-Tetrachloroethane 0.125 0.103 82.4 74.0-129
1,1,2,2-Tetrachloroethane 0.125 0.145 116 68.0-128
Tetrachloroethene 0.125 0.111 88.8 70.0-136
Toluene 0.125 0.115 92.0 75.0-121
1,1,2-Trichlorotrifluoroethane 0.125 0.102 81.6 61.0-139 1,2,3-Trichlorobenzene 0.125 0.0724 57.9 59.0-139 J4
1,2,4-Trichlorobenzene 0.125 0.0779 62.3 62.0-137
1,1,1-Trichloroethane 0.125 0.0908 72.6 69.0-126
1,1,2-Trichloroethane 0.125 0.115 92.0 78.0-123
Trichloroethene 0.125 0.100 80.0 76.0-126
Trichlorofluoromethane 0.125 0.0946 75.7 61.0-142
1,2,3-Trichloropropane 0.125 0.146 117 67.0-129
1,2,3-Trimethylbenzene 0.125 0.109 87.2 74.0-124
1,2,4-Trimethylbenzene 0.125 0.110 88.0 70.0-126
1,3,5-Trimethylbenzene 0.125 0.114 91.2 73.0-127
Vinyl chloride 0.125 0.0970 77.6 63.0-134
Xylenes, Total 0.375 0.325 86.7 72.0-127
(S) Toluene-d8 108 75.0-131
(S) 4-Bromofluorobenzene 89.0 67.0-138
(S) 1,2-Dichloroethane-d4 103 70.0-130
L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/21/21 00:25 • (MS) R3633129-3 03/21/21 05:09 • (MSD) R3633129-4 03/21/21 05:28 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Acetone 0.927 U 1.05 0.433 113 46.7 1 10.0-160 J3 83.1 40 Acrylonitrile 0.927 U 0.869 0.892 93.8 96.3 1 10.0-160 2.69 40 Benzene 0.185 U 0.185 0.179 100 96.8 1 10.0-149 3.25 37 Bromobenzene 0.185 U 0.219 0.224 118 121 1 10.0-156 2.01 38 Bromodichloromethane 0.185 U 0.187 0.184 101 99.2 1 10.0-143 1.60 37 Bromoform 0.185 U 0.206 0.200 111 108 1 10.0-146 2.92 36 Bromomethane 0.185 U 0.150 0.140 80.8 75.6 1 10.0-149 6.65 38 n-Butylbenzene 0.185 U 0.203 0.197 110 106 1 10.0-160 2.96 40 sec-Butylbenzene 0.185 U 0.233 0.234 126 126 1 10.0-159 0.635 39 tert-Butylbenzene 0.185 U 0.219 0.221 118 119 1 10.0-156 0.673 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328417-01,02,03 L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/21/21 00:25 • (MS) R3633129-3 03/21/21 05:09 • (MSD) R3633129-4 03/21/21 05:28 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Carbon tetrachloride 0.185 U 0.196 0.182 106 98.4 1 10.0-145 7.06 37 Chlorobenzene 0.185 U 0.212 0.200 114 108 1 10.0-152 5.76 39 Chlorodibromomethane 0.185 U 0.205 0.197 110 106 1 10.0-146 3.69 37 Chloroethane 0.185 U 0.0944 0.0930 51.0 50.2 1 10.0-146 1.58 40 Chloroform 0.185 U 0.182 0.178 98.4 96.0 1 10.0-146 2.47 37 Chloromethane 0.185 U 0.216 0.208 117 112 1 10.0-159 4.20 37 2-Chlorotoluene 0.185 U 0.224 0.224 121 121 1 10.0-159 0.000 38 4-Chlorotoluene 0.185 U 0.227 0.233 122 126 1 10.0-155 2.58 39 1,2-Dibromo-3-Chloropropane 0.185 U 0.178 0.179 96.0 96.8 1 10.0-151 0.830 39 1,2-Dibromoethane 0.185 U 0.205 0.202 110 109 1 10.0-148 1.46 34 Dibromomethane 0.185 U 0.169 0.154 91.2 83.2 1 10.0-147 9.17 35 1,2-Dichlorobenzene 0.185 U 0.197 0.202 106 109 1 10.0-155 2.23 37 1,3-Dichlorobenzene 0.185 U 0.211 0.208 114 112 1 10.0-153 1.42 38 1,4-Dichlorobenzene 0.185 U 0.205 0.206 110 111 1 10.0-151 0.722 38 Dichlorodifluoromethane 0.185 U 0.208 0.197 112 106 1 10.0-160 5.13 35 1,1-Dichloroethane 0.185 U 0.194 0.190 105 102 1 10.0-147 2.32 37 1,2-Dichloroethane 0.185 U 0.156 0.168 84.0 90.4 1 10.0-148 7.34 35 1,1-Dichloroethene 0.185 U 0.221 0.212 119 114 1 10.0-155 4.11 37 cis-1,2-Dichloroethene 0.185 U 0.182 0.170 98.4 92.0 1 10.0-149 6.72 37 trans-1,2-Dichloroethene 0.185 U 0.191 0.187 103 101 1 10.0-150 2.35 37 1,2-Dichloropropane 0.185 U 0.202 0.194 109 105 1 10.0-148 3.75 37 1,1-Dichloropropene 0.185 U 0.205 0.193 110 104 1 10.0-153 5.97 35 1,3-Dichloropropane 0.185 U 0.215 0.208 116 112 1 10.0-154 3.51 35 cis-1,3-Dichloropropene 0.185 U 0.185 0.181 100 97.6 1 10.0-151 2.43 37 trans-1,3-Dichloropropene 0.185 U 0.224 0.215 121 116 1 10.0-148 4.05 37 2,2-Dichloropropane 0.185 U 0.170 0.163 92.0 88.0 1 10.0-138 4.44 36 Di-isopropyl ether 0.185 U 0.196 0.194 106 105 1 10.0-147 0.760 36 Ethylbenzene 0.185 U 0.208 0.206 112 111 1 10.0-160 0.717 38 Hexachloro-1,3-butadiene 0.185 U 0.173 0.175 93.6 94.4 1 10.0-160 0.851 40 Isopropylbenzene 0.185 U 0.194 0.187 105 101 1 10.0-155 3.89 38 p-Isopropyltoluene 0.185 U 0.219 0.215 118 116 1 10.0-160 2.05 40 2-Butanone (MEK) 0.927 0.142 1.05 1.09 97.9 102 1 10.0-160 3.47 40 Methylene Chloride 0.185 U 0.0643 0.197 34.7 106 1 10.0-141 J3 102 37 4-Methyl-2-pentanone (MIBK) 0.927 U 1.15 1.14 125 123 1 10.0-160 1.29 35 Methyl tert-butyl ether 0.185 U 0.153 0.151 82.4 81.6 1 11.0-147 0.976 35 Naphthalene 0.185 U 0.162 0.142 87.2 76.4 1 10.0-160 13.2 36 n-Propylbenzene 0.185 U 0.242 0.240 130 130 1 10.0-158 0.615 38 Styrene 0.185 U 0.188 0.184 102 99.2 1 10.0-160 2.39 40 1,1,1,2-Tetrachloroethane 0.185 U 0.184 0.176 99.2 95.2 1 10.0-149 4.12 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 747 of 1252 18 of 26 WG1638031 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1328417-01,02,03 L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/21/21 00:25 • (MS) R3633129-3 03/21/21 05:09 • (MSD) R3633129-4 03/21/21 05:28 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
1,1,2,2-Tetrachloroethane 0.185 U 0.234 0.240 126 130 1 10.0-160 2.50 35 Tetrachloroethene 0.185 0.00423 0.222 0.219 118 116 1 10.0-156 1.34 39 Toluene 0.185 U 0.219 0.211 118 114 1 10.0-156 4.14 38
1,1,2-Trichlorotrifluoroethane 0.185 U 0.225 0.212 122 114 1 10.0-160 6.10 36 1,2,3-Trichlorobenzene 0.185 U 0.129 0.136 69.4 73.3 1 10.0-160 5.50 40 1,2,4-Trichlorobenzene 0.185 U 0.145 0.145 78.5 78.2 1 10.0-160 0.306 40 1,1,1-Trichloroethane 0.185 U 0.181 0.163 97.6 88.0 1 10.0-144 10.3 35 1,1,2-Trichloroethane 0.185 U 0.202 0.202 109 109 1 10.0-160 0.000 35 Trichloroethene 0.185 U 0.193 0.179 104 96.8 1 10.0-156 7.17 38 Trichlorofluoromethane 0.185 U 0.126 0.119 68.1 64.5 1 10.0-160 5.43 40 1,2,3-Trichloropropane 0.185 U 0.246 0.251 133 135 1 10.0-156 1.79 35 1,2,3-Trimethylbenzene 0.185 U 0.208 0.197 112 106 1 10.0-160 5.13 36 1,2,4-Trimethylbenzene 0.185 0.00385 0.221 0.205 117 108 1 10.0-160 7.67 36 1,3,5-Trimethylbenzene 0.185 U 0.221 0.221 119 119 1 10.0-160 0.000 38 Vinyl chloride 0.185 U 0.205 0.197 110 106 1 10.0-160 3.69 37 Xylenes, Total 0.556 0.00261 0.577 0.590 103 106 1 10.0-160 2.29 38 (S) Toluene-d8 111 111 75.0-131
(S) 4-Bromofluorobenzene 90.7 90.6 67.0-138
(S) 1,2-Dichloroethane-d4 92.1 94.7 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 748 of 1252 19 of 26 WG1639129 QUALITY CONTROL SUMMARY
Semi-Volatile Organic Compounds (GC) by Method 8015 L1328417-01,02,03 Method Blank (MB)
(MB) R3634065-1 03/24/21 01:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
C12-C22 Hydrocarbons U 0.733 4.00
C22-C32 Hydrocarbons U 1.33 4.00
C32-C40 Hydrocarbons U 1.33 4.00
(S) o-Terphenyl 84.4 18.0-148
Laboratory Control Sample (LCS)
(LCS) R3634065-2 03/24/21 02:05
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
C22-C32 Hydrocarbons 25.0 18.2 72.8 50.0-150
C12-C22 Hydrocarbons 25.0 20.8 83.2 50.0-150
(S) o-Terphenyl 63.8 18.0-148
L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/24/21 04:17 • (MS) R3634065-3 03/24/21 04:31 • (MSD) R3634065-4 03/24/21 04:46 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
C22-C32 Hydrocarbons 30.4 U 24.8 27.7 81.6 91.0 1 50.0-150 10.9 20 C12-C22 Hydrocarbons 30.4 0.933 29.3 32.3 93.3 103 1 50.0-150 9.68 20 (S) o-Terphenyl 62.6 64.3 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Abbreviations and Definitions
(dry) Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].

MDL Method Detection Limit.

MDL (dry) Method Detection Limit.

RDL Reported Detection Limit.

RDL (dry) Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
B The same analyte is found in the associated blank.

J The identification of the analyte is acceptable; the reported value is an estimate.

J3 The associated batch QC was outside the established quality control range for precision.

J4 The associated batch QC was outside the established quality control range for accuracy. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1328417 03/24/21 12:37 750 of 1252 21 of 26 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

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ANALYTICAL REPORT
March 26, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1328977
Samples Received: 03/19/2021
Project Number: 01-LP-001
Description: Lane Partners, 222 E. 4th Ave
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

March 26, 2021
[Preliminary Report]
Jared Starkey
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.

RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 09:57 1 of 36 March 26, 2021
Jason Romer
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 7
SB-02-COMP L1328977-01 7
SB-07-COMP L1328977-02 10
SB-11-COMP L1328977-03 13
Qc: Quality Control Summary 16
Total Solids by Method 2540 G-2011 16
Mercury by Method 7471A 17
Metals (ICP) by Method 6010B 18
Volatile Organic Compounds (GC) by Method 8015 21
Volatile Organic Compounds (GC/MS) by Method 8260B 23
Semi-Volatile Organic Compounds (GC) by Method 8015 29
Gl: Glossary of Terms 30
Al: Accreditations & Locations 31
Sc: Sample Chain of Custody 32
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-02-COMP L1328977-01 Solid E. M 03/17/21 00:00 03/19/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1638768 1 03/23/21 11:31 03/23/21 11:48 KDW Mt. Juliet, TN Mercury by Method 7471A WG1640277 1 03/25/21 09:18 03/25/21 11:25 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 14:52 KMG Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 22:23 CCE Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1640557 1 03/22/21 11:44 03/26/21 02:52 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1638620 1 03/22/21 11:44 03/22/21 19:54 DWR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639129 1 03/23/21 16:13 03/24/21 07:17 JN Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-07-COMP L1328977-02 Solid E. M 03/17/21 00:00 03/19/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1638768 1 03/23/21 11:31 03/23/21 11:48 KDW Mt. Juliet, TN Mercury by Method 7471A WG1640277 1 03/25/21 09:18 03/25/21 11:27 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:05 KMG Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1640557 1 03/22/21 11:44 03/26/21 03:14 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1638620 1 03/22/21 11:44 03/22/21 20:13 DWR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639129 1 03/23/21 16:13 03/24/21 07:31 JN Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-11-COMP L1328977-03 Solid E. M 03/17/21 00:00 03/19/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1638768 1 03/23/21 11:31 03/23/21 11:48 KDW Mt. Juliet, TN Mercury by Method 7471A WG1640277 1 03/25/21 09:18 03/25/21 11:30 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:08 KMG Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1638793 1 03/22/21 11:44 03/23/21 08:35 TPR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1638620 1 03/22/21 11:44 03/22/21 20:32 DWR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639129 1 03/23/21 16:13 03/24/21 07:46 JN Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 09:57 4 of 36 Jason Romer
Project Manager
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DETECTION SUMMARY
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-02-COMP L1328977-01 Mercury 0.0385 J 0.0205 0.0455 1 03/25/2021 11:25 WG1640277 SB-07-COMP L1328977-02 Mercury 0.0398 J 0.0218 0.0483 1 03/25/2021 11:27 WG1640277 SB-11-COMP L1328977-03 Mercury 0.0355 J 0.0223 0.0496 1 03/25/2021 11:30 WG1640277 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-02-COMP L1328977-01 Arsenic 2.28 0.589 2.27 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Barium 108 0.0968 0.568 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Beryllium 0.391 0.0358 0.227 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Cadmium 0.478 J 0.0535 0.568 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Chromium 93.5 J6 0.151 1.14 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Cobalt 21.3 0.0922 1.14 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Copper 35.1 0.455 2.27 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Lead 5.77 0.236 0.568 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Nickel 125 J6 0.150 2.27 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Selenium 1.65 J 0.868 2.27 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Vanadium 72.7 J6 0.575 2.27 1 03/25/2021 14:52 WG1640232 SB-02-COMP L1328977-01 Zinc 51.6 0.946 5.68 1 03/25/2021 22:23 WG1640232 SB-07-COMP L1328977-02 Arsenic 1.83 J 0.626 2.42 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Barium 105 0.103 0.604 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Beryllium 0.319 0.0381 0.242 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Cadmium 0.435 J 0.0569 0.604 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Chromium 87.3 0.161 1.21 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Cobalt 19.1 0.0980 1.21 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Copper 32.6 0.483 2.42 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Lead 4.49 0.251 0.604 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Nickel 104 0.160 2.42 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Selenium 1.90 J 0.923 2.42 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Vanadium 62.3 0.611 2.42 1 03/25/2021 15:05 WG1640232 SB-07-COMP L1328977-02 Zinc 48.6 1.01 6.04 1 03/25/2021 15:05 WG1640232 SB-11-COMP L1328977-03 Barium 115 0.106 0.620 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Beryllium 0.355 0.0390 0.248 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Cadmium 0.391 J 0.0584 0.620 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Chromium 71.2 0.165 1.24 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Cobalt 17.0 0.100 1.24 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Copper 23.2 0.496 2.48 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Lead 5.17 0.258 0.620 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Molybdenum 0.139 J 0.135 0.620 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Nickel 98.5 0.164 2.48 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Selenium 1.07 J 0.947 2.48 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Vanadium 43.0 0.627 2.48 1 03/25/2021 15:08 WG1640232 SB-11-COMP L1328977-03 Zinc 41.1 1.03 6.20 1 03/25/2021 15:08 WG1640232 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-02-COMP L1328977-01 2-Butanone (MEK) 0.109 B J 0.0809 0.127 1 03/22/2021 19:54 WG1638620 SB-02-COMP L1328977-01 Toluene 0.00172 J 0.00166 0.00637 1 03/22/2021 19:54 WG1638620 SB-07-COMP L1328977-02 2-Butanone (MEK) 0.0988 B J 0.0900 0.142 1 03/22/2021 20:13 WG1638620 SB-07-COMP L1328977-02 Toluene 0.00252 J 0.00184 0.00708 1 03/22/2021 20:13 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1328977
SB-02-COMP
Collected date/time: 03/17/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 88.0 1 03/23/2021 11:48 WG1638768
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0385 J 0.0205 0.0455 1 03/25/2021 11:25 WG1640277 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.618 2.27 1 03/25/2021 14:52 WG1640232
Arsenic 2.28 0.589 2.27 1 03/25/2021 14:52 WG1640232
Barium 108 0.0968 0.568 1 03/25/2021 14:52 WG1640232
Beryllium 0.391 0.0358 0.227 1 03/25/2021 14:52 WG1640232 Cadmium 0.478 J 0.0535 0.568 1 03/25/2021 14:52 WG1640232 Chromium 93.5 J6 0.151 1.14 1 03/25/2021 14:52 WG1640232 Cobalt 21.3 0.0922 1.14 1 03/25/2021 14:52 WG1640232
Copper 35.1 0.455 2.27 1 03/25/2021 14:52 WG1640232
Lead 5.77 0.236 0.568 1 03/25/2021 14:52 WG1640232
Molybdenum U 0.124 0.568 1 03/25/2021 14:52 WG1640232
Nickel 125 J6 0.150 2.27 1 03/25/2021 14:52 WG1640232
Selenium 1.65 J 0.868 2.27 1 03/25/2021 14:52 WG1640232 Silver U 0.144 1.14 1 03/25/2021 14:52 WG1640232
Thallium U 0.448 2.27 1 03/25/2021 14:52 WG1640232
Vanadium 72.7 J6 0.575 2.27 1 03/25/2021 14:52 WG1640232 Zinc 51.6 0.946 5.68 1 03/25/2021 22:23 WG1640232
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0377 0.114 1 03/26/2021 02:52 WG1640557 (S) a,a,a-Trifluorotoluene(FID) 92.3 77.0-120 03/26/2021 02:52 WG1640557 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0465 0.0637 1 03/22/2021 19:54 WG1638620 Acrylonitrile U 0.00460 0.0159 1 03/22/2021 19:54 WG1638620 Benzene U 0.000595 0.00127 1 03/22/2021 19:54 WG1638620 Bromobenzene U 0.00115 0.0159 1 03/22/2021 19:54 WG1638620 Bromodichloromethane U 0.000923 0.00318 1 03/22/2021 19:54 WG1638620 Bromoform U 0.00149 0.0318 1 03/22/2021 19:54 WG1638620 Bromomethane U 0.00251 0.0159 1 03/22/2021 19:54 WG1638620 n-Butylbenzene U 0.00669 0.0159 1 03/22/2021 19:54 WG1638620 sec-Butylbenzene U 0.00367 0.0159 1 03/22/2021 19:54 WG1638620 tert-Butylbenzene U 0.00248 0.00637 1 03/22/2021 19:54 WG1638620 Carbon tetrachloride U 0.00114 0.00637 1 03/22/2021 19:54 WG1638620 Chlorobenzene U 0.000267 0.00318 1 03/22/2021 19:54 WG1638620 Chlorodibromomethane U 0.000779 0.00318 1 03/22/2021 19:54 WG1638620 Chloroethane U 0.00217 0.00637 1 03/22/2021 19:54 WG1638620 Chloroform U 0.00131 0.00318 1 03/22/2021 19:54 WG1638620 Chloromethane U 0.00554 0.0159 1 03/22/2021 19:54 WG1638620 2-Chlorotoluene U 0.00110 0.00318 1 03/22/2021 19:54 WG1638620 4-Chlorotoluene U 0.000573 0.00637 1 03/22/2021 19:54 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1328977
SB-02-COMP
Collected date/time: 03/17/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00497 0.0318 1 03/22/2021 19:54 WG1638620 1,2-Dibromoethane U 0.000825 0.00318 1 03/22/2021 19:54 WG1638620 Dibromomethane U 0.000955 0.00637 1 03/22/2021 19:54 WG1638620 1,2-Dichlorobenzene U 0.000541 0.00637 1 03/22/2021 19:54 WG1638620 1,3-Dichlorobenzene U 0.000764 0.00637 1 03/22/2021 19:54 WG1638620 1,4-Dichlorobenzene U 0.000892 0.00637 1 03/22/2021 19:54 WG1638620 Dichlorodifluoromethane U 0.00205 0.00318 1 03/22/2021 19:54 WG1638620 1,1-Dichloroethane U 0.000625 0.00318 1 03/22/2021 19:54 WG1638620 1,2-Dichloroethane U 0.000827 0.00318 1 03/22/2021 19:54 WG1638620 1,1-Dichloroethene U 0.000772 0.00318 1 03/22/2021 19:54 WG1638620 cis-1,2-Dichloroethene U 0.000935 0.00318 1 03/22/2021 19:54 WG1638620 trans-1,2-Dichloroethene U 0.00132 0.00637 1 03/22/2021 19:54 WG1638620 1,2-Dichloropropane U 0.00181 0.00637 1 03/22/2021 19:54 WG1638620 1,1-Dichloropropene U 0.00103 0.00318 1 03/22/2021 19:54 WG1638620 1,3-Dichloropropane U 0.000638 0.00637 1 03/22/2021 19:54 WG1638620 cis-1,3-Dichloropropene U 0.000964 0.00318 1 03/22/2021 19:54 WG1638620 trans-1,3-Dichloropropene U 0.00145 0.00637 1 03/22/2021 19:54 WG1638620 2,2-Dichloropropane U 0.00176 0.00318 1 03/22/2021 19:54 WG1638620 Di-isopropyl ether U 0.000522 0.00127 1 03/22/2021 19:54 WG1638620 Ethylbenzene U 0.000939 0.00318 1 03/22/2021 19:54 WG1638620 Hexachloro-1,3-butadiene U 0.00764 0.0318 1 03/22/2021 19:54 WG1638620 Isopropylbenzene U 0.000541 0.00318 1 03/22/2021 19:54 WG1638620 p-Isopropyltoluene U 0.00325 0.00637 1 03/22/2021 19:54 WG1638620 2-Butanone (MEK) 0.109 B J 0.0809 0.127 1 03/22/2021 19:54 WG1638620 Methylene Chloride U 0.00846 0.0318 1 03/22/2021 19:54 WG1638620 4-Methyl-2-pentanone (MIBK) U 0.00290 0.0318 1 03/22/2021 19:54 WG1638620 Methyl tert-butyl ether U 0.000446 0.00127 1 03/22/2021 19:54 WG1638620 Naphthalene U 0.00622 0.0159 1 03/22/2021 19:54 WG1638620 n-Propylbenzene U 0.00121 0.00637 1 03/22/2021 19:54 WG1638620 Styrene U 0.000292 0.0159 1 03/22/2021 19:54 WG1638620
1,1,1,2-Tetrachloroethane U 0.00121 0.00318 1 03/22/2021 19:54 WG1638620 1,1,2,2-Tetrachloroethane U 0.000885 0.00318 1 03/22/2021 19:54 WG1638620 1,1,2-Trichlorotrifluoroethane U 0.000960 0.00318 1 03/22/2021 19:54 WG1638620 Tetrachloroethene U 0.00114 0.00318 1 03/22/2021 19:54 WG1638620 Toluene 0.00172 J 0.00166 0.00637 1 03/22/2021 19:54 WG1638620 1,2,3-Trichlorobenzene U 0.00934 0.0159 1 03/22/2021 19:54 WG1638620 1,2,4-Trichlorobenzene U 0.00560 0.0159 1 03/22/2021 19:54 WG1638620 1,1,1-Trichloroethane U 0.00118 0.00318 1 03/22/2021 19:54 WG1638620 1,1,2-Trichloroethane U 0.000760 0.00318 1 03/22/2021 19:54 WG1638620 Trichloroethene U 0.000744 0.00127 1 03/22/2021 19:54 WG1638620 Trichlorofluoromethane U 0.00105 0.00318 1 03/22/2021 19:54 WG1638620 1,2,3-Trichloropropane U 0.00206 0.0159 1 03/22/2021 19:54 WG1638620 1,2,4-Trimethylbenzene U 0.00201 0.00637 1 03/22/2021 19:54 WG1638620 1,2,3-Trimethylbenzene U 0.00201 0.00637 1 03/22/2021 19:54 WG1638620 1,3,5-Trimethylbenzene U 0.00255 0.00637 1 03/22/2021 19:54 WG1638620 Vinyl chloride U 0.00148 0.00318 1 03/22/2021 19:54 WG1638620 Xylenes, Total U 0.00112 0.00828 1 03/22/2021 19:54 WG1638620 (S) Toluene-d8 102 75.0-131 03/22/2021 19:54 WG1638620
(S) 4-Bromofluorobenzene 100 67.0-138 03/22/2021 19:54 WG1638620 (S) 1,2-Dichloroethane-d4 93.9 70.0-130 03/22/2021 19:54 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1328977
SB-02-COMP
Collected date/time: 03/17/21 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 1.98 J 0.833 4.55 1 03/24/2021 07:17 WG1639129 C22-C32 Hydrocarbons U 1.51 4.55 1 03/24/2021 07:17 WG1639129 C32-C40 Hydrocarbons U 1.51 4.55 1 03/24/2021 07:17 WG1639129 (S) o-Terphenyl 91.4 18.0-148 03/24/2021 07:17 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1328977
SB-07-COMP
Collected date/time: 03/17/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 82.7 1 03/23/2021 11:48 WG1638768
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0398 J 0.0218 0.0483 1 03/25/2021 11:27 WG1640277 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.657 2.42 1 03/25/2021 15:05 WG1640232
Arsenic 1.83 J 0.626 2.42 1 03/25/2021 15:05 WG1640232
Barium 105 0.103 0.604 1 03/25/2021 15:05 WG1640232
Beryllium 0.319 0.0381 0.242 1 03/25/2021 15:05 WG1640232 Cadmium 0.435 J 0.0569 0.604 1 03/25/2021 15:05 WG1640232 Chromium 87.3 0.161 1.21 1 03/25/2021 15:05 WG1640232
Cobalt 19.1 0.0980 1.21 1 03/25/2021 15:05 WG1640232
Copper 32.6 0.483 2.42 1 03/25/2021 15:05 WG1640232
Lead 4.49 0.251 0.604 1 03/25/2021 15:05 WG1640232
Molybdenum U 0.132 0.604 1 03/25/2021 15:05 WG1640232
Nickel 104 0.160 2.42 1 03/25/2021 15:05 WG1640232
Selenium 1.90 J 0.923 2.42 1 03/25/2021 15:05 WG1640232 Silver U 0.153 1.21 1 03/25/2021 15:05 WG1640232
Thallium U 0.476 2.42 1 03/25/2021 15:05 WG1640232
Vanadium 62.3 0.611 2.42 1 03/25/2021 15:05 WG1640232
Zinc 48.6 1.01 6.04 1 03/25/2021 15:05 WG1640232
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0401 0.121 1 03/26/2021 03:14 WG1640557 (S) a,a,a-Trifluorotoluene(FID) 92.6 77.0-120 03/26/2021 03:14 WG1640557 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0517 0.0708 1 03/22/2021 20:13 WG1638620 Acrylonitrile U 0.00512 0.0177 1 03/22/2021 20:13 WG1638620 Benzene U 0.000662 0.00142 1 03/22/2021 20:13 WG1638620 Bromobenzene U 0.00128 0.0177 1 03/22/2021 20:13 WG1638620 Bromodichloromethane U 0.00103 0.00354 1 03/22/2021 20:13 WG1638620 Bromoform U 0.00166 0.0354 1 03/22/2021 20:13 WG1638620 Bromomethane U 0.00279 0.0177 1 03/22/2021 20:13 WG1638620 n-Butylbenzene U 0.00744 0.0177 1 03/22/2021 20:13 WG1638620 sec-Butylbenzene U 0.00408 0.0177 1 03/22/2021 20:13 WG1638620 tert-Butylbenzene U 0.00276 0.00708 1 03/22/2021 20:13 WG1638620 Carbon tetrachloride U 0.00127 0.00708 1 03/22/2021 20:13 WG1638620 Chlorobenzene U 0.000298 0.00354 1 03/22/2021 20:13 WG1638620 Chlorodibromomethane U 0.000867 0.00354 1 03/22/2021 20:13 WG1638620 Chloroethane U 0.00241 0.00708 1 03/22/2021 20:13 WG1638620 Chloroform U 0.00146 0.00354 1 03/22/2021 20:13 WG1638620 Chloromethane U 0.00616 0.0177 1 03/22/2021 20:13 WG1638620 2-Chlorotoluene U 0.00123 0.00354 1 03/22/2021 20:13 WG1638620 4-Chlorotoluene U 0.000638 0.00708 1 03/22/2021 20:13 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1328977
SB-07-COMP
Collected date/time: 03/17/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00553 0.0354 1 03/22/2021 20:13 WG1638620 1,2-Dibromoethane U 0.000918 0.00354 1 03/22/2021 20:13 WG1638620 Dibromomethane U 0.00106 0.00708 1 03/22/2021 20:13 WG1638620 1,2-Dichlorobenzene U 0.000602 0.00708 1 03/22/2021 20:13 WG1638620 1,3-Dichlorobenzene U 0.000850 0.00708 1 03/22/2021 20:13 WG1638620 1,4-Dichlorobenzene U 0.000992 0.00708 1 03/22/2021 20:13 WG1638620 Dichlorodifluoromethane U 0.00228 0.00354 1 03/22/2021 20:13 WG1638620 1,1-Dichloroethane U 0.000696 0.00354 1 03/22/2021 20:13 WG1638620 1,2-Dichloroethane U 0.000920 0.00354 1 03/22/2021 20:13 WG1638620 1,1-Dichloroethene U 0.000859 0.00354 1 03/22/2021 20:13 WG1638620 cis-1,2-Dichloroethene U 0.00104 0.00354 1 03/22/2021 20:13 WG1638620 trans-1,2-Dichloroethene U 0.00147 0.00708 1 03/22/2021 20:13 WG1638620 1,2-Dichloropropane U 0.00201 0.00708 1 03/22/2021 20:13 WG1638620 1,1-Dichloropropene U 0.00115 0.00354 1 03/22/2021 20:13 WG1638620 1,3-Dichloropropane U 0.000710 0.00708 1 03/22/2021 20:13 WG1638620 cis-1,3-Dichloropropene U 0.00107 0.00354 1 03/22/2021 20:13 WG1638620 trans-1,3-Dichloropropene U 0.00162 0.00708 1 03/22/2021 20:13 WG1638620 2,2-Dichloropropane U 0.00196 0.00354 1 03/22/2021 20:13 WG1638620 Di-isopropyl ether U 0.000581 0.00142 1 03/22/2021 20:13 WG1638620 Ethylbenzene U 0.00104 0.00354 1 03/22/2021 20:13 WG1638620 Hexachloro-1,3-butadiene U 0.00850 0.0354 1 03/22/2021 20:13 WG1638620 Isopropylbenzene U 0.000602 0.00354 1 03/22/2021 20:13 WG1638620 p-Isopropyltoluene U 0.00361 0.00708 1 03/22/2021 20:13 WG1638620 2-Butanone (MEK) 0.0988 B J 0.0900 0.142 1 03/22/2021 20:13 WG1638620 Methylene Chloride U 0.00941 0.0354 1 03/22/2021 20:13 WG1638620 4-Methyl-2-pentanone (MIBK) U 0.00323 0.0354 1 03/22/2021 20:13 WG1638620 Methyl tert-butyl ether U 0.000496 0.00142 1 03/22/2021 20:13 WG1638620 Naphthalene U 0.00691 0.0177 1 03/22/2021 20:13 WG1638620 n-Propylbenzene U 0.00135 0.00708 1 03/22/2021 20:13 WG1638620 Styrene U 0.000324 0.0177 1 03/22/2021 20:13 WG1638620
1,1,1,2-Tetrachloroethane U 0.00134 0.00354 1 03/22/2021 20:13 WG1638620 1,1,2,2-Tetrachloroethane U 0.000985 0.00354 1 03/22/2021 20:13 WG1638620 1,1,2-Trichlorotrifluoroethane U 0.00107 0.00354 1 03/22/2021 20:13 WG1638620 Tetrachloroethene U 0.00127 0.00354 1 03/22/2021 20:13 WG1638620 Toluene 0.00252 J 0.00184 0.00708 1 03/22/2021 20:13 WG1638620 1,2,3-Trichlorobenzene U 0.0104 0.0177 1 03/22/2021 20:13 WG1638620 1,2,4-Trichlorobenzene U 0.00623 0.0177 1 03/22/2021 20:13 WG1638620 1,1,1-Trichloroethane U 0.00131 0.00354 1 03/22/2021 20:13 WG1638620 1,1,2-Trichloroethane U 0.000846 0.00354 1 03/22/2021 20:13 WG1638620 Trichloroethene U 0.000828 0.00142 1 03/22/2021 20:13 WG1638620 Trichlorofluoromethane U 0.00117 0.00354 1 03/22/2021 20:13 WG1638620 1,2,3-Trichloropropane U 0.00230 0.0177 1 03/22/2021 20:13 WG1638620 1,2,4-Trimethylbenzene U 0.00224 0.00708 1 03/22/2021 20:13 WG1638620 1,2,3-Trimethylbenzene U 0.00224 0.00708 1 03/22/2021 20:13 WG1638620 1,3,5-Trimethylbenzene U 0.00283 0.00708 1 03/22/2021 20:13 WG1638620 Vinyl chloride U 0.00164 0.00354 1 03/22/2021 20:13 WG1638620 Xylenes, Total U 0.00125 0.00921 1 03/22/2021 20:13 WG1638620 (S) Toluene-d8 102 75.0-131 03/22/2021 20:13 WG1638620
(S) 4-Bromofluorobenzene 98.8 67.0-138 03/22/2021 20:13 WG1638620 (S) 1,2-Dichloroethane-d4 98.4 70.0-130 03/22/2021 20:13 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 12:26 762 of 1252 11 of 36 SAMPLE RESULTS - 02
L1328977
SB-07-COMP
Collected date/time: 03/17/21 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 1.50 J 0.886 4.83 1 03/24/2021 07:31 WG1639129 C22-C32 Hydrocarbons U 1.61 4.83 1 03/24/2021 07:31 WG1639129 C32-C40 Hydrocarbons U 1.61 4.83 1 03/24/2021 07:31 WG1639129 (S) o-Terphenyl 91.4 18.0-148 03/24/2021 07:31 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1328977
SB-11-COMP
Collected date/time: 03/17/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 80.7 1 03/23/2021 11:48 WG1638768
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0355 J 0.0223 0.0496 1 03/25/2021 11:30 WG1640277 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.674 2.48 1 03/25/2021 15:08 WG1640232
Arsenic U 0.642 2.48 1 03/25/2021 15:08 WG1640232
Barium 115 0.106 0.620 1 03/25/2021 15:08 WG1640232
Beryllium 0.355 0.0390 0.248 1 03/25/2021 15:08 WG1640232 Cadmium 0.391 J 0.0584 0.620 1 03/25/2021 15:08 WG1640232 Chromium 71.2 0.165 1.24 1 03/25/2021 15:08 WG1640232
Cobalt 17.0 0.100 1.24 1 03/25/2021 15:08 WG1640232
Copper 23.2 0.496 2.48 1 03/25/2021 15:08 WG1640232
Lead 5.17 0.258 0.620 1 03/25/2021 15:08 WG1640232
Molybdenum 0.139 J 0.135 0.620 1 03/25/2021 15:08 WG1640232 Nickel 98.5 0.164 2.48 1 03/25/2021 15:08 WG1640232
Selenium 1.07 J 0.947 2.48 1 03/25/2021 15:08 WG1640232 Silver U 0.157 1.24 1 03/25/2021 15:08 WG1640232
Thallium U 0.488 2.48 1 03/25/2021 15:08 WG1640232
Vanadium 43.0 0.627 2.48 1 03/25/2021 15:08 WG1640232
Zinc 41.1 1.03 6.20 1 03/25/2021 15:08 WG1640232
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0411 0.124 1 03/23/2021 08:35 WG1638793 (S) a,a,a-Trifluorotoluene(FID) 93.0 77.0-120 03/23/2021 08:35 WG1638793 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J3 0.0540 0.0739 1 03/22/2021 20:32 WG1638620 Acrylonitrile U 0.00534 0.0185 1 03/22/2021 20:32 WG1638620 Benzene U 0.000690 0.00148 1 03/22/2021 20:32 WG1638620 Bromobenzene U 0.00133 0.0185 1 03/22/2021 20:32 WG1638620 Bromodichloromethane U 0.00107 0.00370 1 03/22/2021 20:32 WG1638620 Bromoform U 0.00173 0.0370 1 03/22/2021 20:32 WG1638620 Bromomethane U 0.00291 0.0185 1 03/22/2021 20:32 WG1638620 n-Butylbenzene U 0.00776 0.0185 1 03/22/2021 20:32 WG1638620 sec-Butylbenzene U 0.00426 0.0185 1 03/22/2021 20:32 WG1638620 tert-Butylbenzene U 0.00288 0.00739 1 03/22/2021 20:32 WG1638620 Carbon tetrachloride U 0.00133 0.00739 1 03/22/2021 20:32 WG1638620 Chlorobenzene U 0.000310 0.00370 1 03/22/2021 20:32 WG1638620 Chlorodibromomethane U 0.000905 0.00370 1 03/22/2021 20:32 WG1638620 Chloroethane U 0.00251 0.00739 1 03/22/2021 20:32 WG1638620 Chloroform U 0.00152 0.00370 1 03/22/2021 20:32 WG1638620 Chloromethane U 0.00643 0.0185 1 03/22/2021 20:32 WG1638620 2-Chlorotoluene U 0.00128 0.00370 1 03/22/2021 20:32 WG1638620 4-Chlorotoluene U 0.000665 0.00739 1 03/22/2021 20:32 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1328977
SB-11-COMP
Collected date/time: 03/17/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00577 0.0370 1 03/22/2021 20:32 WG1638620 1,2-Dibromoethane U 0.000958 0.00370 1 03/22/2021 20:32 WG1638620 Dibromomethane U 0.00111 0.00739 1 03/22/2021 20:32 WG1638620 1,2-Dichlorobenzene U 0.000628 0.00739 1 03/22/2021 20:32 WG1638620 1,3-Dichlorobenzene U 0.000887 0.00739 1 03/22/2021 20:32 WG1638620 1,4-Dichlorobenzene U 0.00103 0.00739 1 03/22/2021 20:32 WG1638620 Dichlorodifluoromethane U 0.00238 0.00370 1 03/22/2021 20:32 WG1638620 1,1-Dichloroethane U 0.000726 0.00370 1 03/22/2021 20:32 WG1638620 1,2-Dichloroethane U 0.000960 0.00370 1 03/22/2021 20:32 WG1638620 1,1-Dichloroethene U 0.000896 0.00370 1 03/22/2021 20:32 WG1638620 cis-1,2-Dichloroethene U 0.00109 0.00370 1 03/22/2021 20:32 WG1638620 trans-1,2-Dichloroethene U 0.00154 0.00739 1 03/22/2021 20:32 WG1638620 1,2-Dichloropropane U 0.00210 0.00739 1 03/22/2021 20:32 WG1638620 1,1-Dichloropropene U 0.00120 0.00370 1 03/22/2021 20:32 WG1638620 1,3-Dichloropropane U 0.000741 0.00739 1 03/22/2021 20:32 WG1638620 cis-1,3-Dichloropropene U 0.00112 0.00370 1 03/22/2021 20:32 WG1638620 trans-1,3-Dichloropropene U 0.00169 0.00739 1 03/22/2021 20:32 WG1638620 2,2-Dichloropropane U 0.00204 0.00370 1 03/22/2021 20:32 WG1638620 Di-isopropyl ether U 0.000606 0.00148 1 03/22/2021 20:32 WG1638620 Ethylbenzene U 0.00109 0.00370 1 03/22/2021 20:32 WG1638620 Hexachloro-1,3-butadiene U 0.00887 0.0370 1 03/22/2021 20:32 WG1638620 Isopropylbenzene U 0.000628 0.00370 1 03/22/2021 20:32 WG1638620 p-Isopropyltoluene U 0.00377 0.00739 1 03/22/2021 20:32 WG1638620 2-Butanone (MEK) 0.110 B J 0.0939 0.148 1 03/22/2021 20:32 WG1638620 Methylene Chloride U 0.00982 0.0370 1 03/22/2021 20:32 WG1638620 4-Methyl-2-pentanone (MIBK) U 0.00337 0.0370 1 03/22/2021 20:32 WG1638620 Methyl tert-butyl ether U 0.000517 0.00148 1 03/22/2021 20:32 WG1638620 Naphthalene U 0.00721 0.0185 1 03/22/2021 20:32 WG1638620 n-Propylbenzene U 0.00140 0.00739 1 03/22/2021 20:32 WG1638620 Styrene U 0.000339 0.0185 1 03/22/2021 20:32 WG1638620
1,1,1,2-Tetrachloroethane U 0.00140 0.00370 1 03/22/2021 20:32 WG1638620 1,1,2,2-Tetrachloroethane U 0.00103 0.00370 1 03/22/2021 20:32 WG1638620 1,1,2-Trichlorotrifluoroethane U 0.00111 0.00370 1 03/22/2021 20:32 WG1638620 Tetrachloroethene U 0.00132 0.00370 1 03/22/2021 20:32 WG1638620 Toluene 0.00217 J 0.00192 0.00739 1 03/22/2021 20:32 WG1638620 1,2,3-Trichlorobenzene U 0.0108 0.0185 1 03/22/2021 20:32 WG1638620 1,2,4-Trichlorobenzene U 0.00651 0.0185 1 03/22/2021 20:32 WG1638620 1,1,1-Trichloroethane U 0.00136 0.00370 1 03/22/2021 20:32 WG1638620 1,1,2-Trichloroethane U 0.000883 0.00370 1 03/22/2021 20:32 WG1638620 Trichloroethene U 0.000863 0.00148 1 03/22/2021 20:32 WG1638620 Trichlorofluoromethane U 0.00122 0.00370 1 03/22/2021 20:32 WG1638620 1,2,3-Trichloropropane U 0.00240 0.0185 1 03/22/2021 20:32 WG1638620 1,2,4-Trimethylbenzene U 0.00234 0.00739 1 03/22/2021 20:32 WG1638620 1,2,3-Trimethylbenzene U 0.00234 0.00739 1 03/22/2021 20:32 WG1638620 1,3,5-Trimethylbenzene U 0.00296 0.00739 1 03/22/2021 20:32 WG1638620 Vinyl chloride U 0.00171 0.00370 1 03/22/2021 20:32 WG1638620 Xylenes, Total U 0.00130 0.00961 1 03/22/2021 20:32 WG1638620 (S) Toluene-d8 102 75.0-131 03/22/2021 20:32 WG1638620
(S) 4-Bromofluorobenzene 99.7 67.0-138 03/22/2021 20:32 WG1638620 (S) 1,2-Dichloroethane-d4 95.6 70.0-130 03/22/2021 20:32 WG1638620 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1328977
SB-11-COMP
Collected date/time: 03/17/21 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 2.29 J 0.908 4.96 1 03/24/2021 07:46 WG1639129 C22-C32 Hydrocarbons U 1.65 4.96 1 03/24/2021 07:46 WG1639129 C32-C40 Hydrocarbons U 1.65 4.96 1 03/24/2021 07:46 WG1639129 (S) o-Terphenyl 81.4 18.0-148 03/24/2021 07:46 WG1639129 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 12:26 766 of 1252 15 of 36 WG1638768 QUALITY CONTROL SUMMARY
Total Solids by Method 2540 G-2011 L1328977-01,02,03
Method Blank (MB)
(MB) R3634183-1 03/23/21 11:48
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.00100
L1328976-07 Original Sample (OS) • Duplicate (DUP)
(OS) L1328976-07 03/23/21 11:48 • (DUP) R3634183-3 03/23/21 11:48 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 91.4 89.4 1 2.21 10
Laboratory Control Sample (LCS)
(LCS) R3634183-2 03/23/21 11:48
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 12:26 767 of 1252 16 of 36 WG1640277 QUALITY CONTROL SUMMARY
Mercury by Method 7471A L1328977-01,02,03
Method Blank (MB)
(MB) R3634720-1 03/25/21 11:07
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Mercury U 0.0180 0.0400
Laboratory Control Sample (LCS)
(LCS) R3634720-2 03/25/21 11:15
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Mercury 0.500 0.490 98.1 80.0-120
L1330312-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1330312-01 03/25/21 11:17 • (MS) R3634720-3 03/25/21 11:20 • (MSD) R3634720-4 03/25/21 11:22 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Mercury 0.500 U 0.452 0.468 90.5 93.6 1 75.0-125 3.39 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 12:26 768 of 1252 17 of 36 WG1640232 QUALITY CONTROL SUMMARY
Metals (ICP) by Method 6010B L1328977-01,02,03
Method Blank (MB)
(MB) R3634945-1 03/25/21 14:46
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Antimony U 0.544 2.00
Arsenic U 0.518 2.00
Barium U 0.0852 0.500
Beryllium U 0.0315 0.200
Cadmium U 0.0471 0.500
Chromium U 0.133 1.00
Cobalt U 0.0811 1.00
Copper U 0.400 2.00
Lead U 0.208 0.500
Molybdenum U 0.109 0.500
Nickel U 0.132 2.00
Selenium U 0.764 2.00
Silver U 0.127 1.00
Thallium U 0.394 2.00
Vanadium U 0.506 2.00
Method Blank (MB)
(MB) R3635005-1 03/25/21 22:18
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Zinc U 0.832 5.00
Laboratory Control Sample (LCS)
(LCS) R3634945-2 03/25/21 14:49
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Antimony 100 97.6 97.6 80.0-120
Arsenic 100 96.8 96.8 80.0-120
Barium 100 103 103 80.0-120
Beryllium 100 97.5 97.5 80.0-120
Cadmium 100 97.7 97.7 80.0-120
Chromium 100 98.2 98.2 80.0-120
Cobalt 100 101 101 80.0-120
Copper 100 97.4 97.4 80.0-120
Lead 100 97.4 97.4 80.0-120
Molybdenum 100 103 103 80.0-120
Nickel 100 100 100 80.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Metals (ICP) by Method 6010B L1328977-01,02,03
Laboratory Control Sample (LCS)
(LCS) R3634945-2 03/25/21 14:49
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Selenium 100 99.9 99.9 80.0-120
Silver 20.0 18.9 94.5 80.0-120
Thallium 100 98.2 98.2 80.0-120
Vanadium 100 101 101 80.0-120
Laboratory Control Sample (LCS)
(LCS) R3635005-2 03/25/21 22:20
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Zinc 100 97.3 97.3 80.0-120
L1328977-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328977-01 03/25/21 14:52 • (MS) R3634945-5 03/25/21 15:00 • (MSD) R3634945-6 03/25/21 15:02 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Antimony 114 U 89.6 94.3 78.8 83.0 1 75.0-125 5.20 20
Arsenic 114 2.28 96.5 103 82.9 88.3 1 75.0-125 6.13 20
Barium 114 108 199 199 80.2 80.2 1 75.0-125 0.0118 20
Beryllium 114 0.391 99.7 104 87.4 91.6 1 75.0-125 4.68 20 Cadmium 114 0.478 102 107 89.5 93.3 1 75.0-125 4.17 20
Chromium 114 93.5 178 182 74.0 77.9 1 75.0-125 J6 2.45 20 Cobalt 114 21.3 130 137 96.1 102 1 75.0-125 5.10 20
Copper 114 35.1 128 135 82.1 87.9 1 75.0-125 5.00 20
Lead 114 5.77 113 118 93.9 98.6 1 75.0-125 4.64 20
Molybdenum 114 U 100 105 88.1 92.4 1 75.0-125 4.73 20
Nickel 114 125 204 226 69.2 88.5 1 75.0-125 J6 10.2 20
Selenium 114 1.65 96.2 103 83.2 89.3 1 75.0-125 6.92 20 Silver 22.7 U 20.0 20.8 88.0 91.4 1 75.0-125 3.79 20
Thallium 114 U 104 108 91.1 94.8 1 75.0-125 3.91 20
Vanadium 114 72.7 150 161 67.6 77.4 1 75.0-125 J6 7.21 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Metals (ICP) by Method 6010B L1328977-01,02,03
L1328977-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328977-01 03/25/21 22:23 • (MS) R3635005-5 03/25/21 22:31 • (MSD) R3635005-6 03/25/21 22:34 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Zinc 114 51.6 142 146 79.4 83.1 1 75.0-125 2.90 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC) by Method 8015 L1328977-03 Method Blank (MB)
(MB) R3634769-2 03/23/21 05:56
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 97.0 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3634769-1 03/23/21 04:58
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 5.18 94.2 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 102 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC) by Method 8015 L1328977-01,02 Method Blank (MB)
(MB) R3635058-2 03/25/21 21:39
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 97.5 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3635058-1 03/25/21 20:56
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 5.45 99.1 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 106 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328977-01,02,03 Method Blank (MB)
(MB) R3634778-3 03/22/21 15:39
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328977-01,02,03 Method Blank (MB)
(MB) R3634778-3 03/22/21 15:39
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) 0.111 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene U 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total U 0.000880 0.00650
(S) Toluene-d8 99.1 75.0-131
(S) 4-Bromofluorobenzene 102 67.0-138
(S) 1,2-Dichloroethane-d4 104 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3634778-1 03/22/21 13:57 • (LCSD) R3634778-2 03/22/21 14:31 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Acetone 0.625 0.495 0.796 79.2 127 10.0-160 J3 46.6 31
Acrylonitrile 0.625 0.691 0.815 111 130 45.0-153 16.5 22 Benzene 0.125 0.138 0.137 110 110 70.0-123 0.727 20
Bromobenzene 0.125 0.135 0.129 108 103 73.0-121 4.55 20 Bromodichloromethane 0.125 0.132 0.136 106 109 73.0-121 2.99 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328977-01,02,03 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3634778-1 03/22/21 13:57 • (LCSD) R3634778-2 03/22/21 14:31 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Bromoform 0.125 0.133 0.134 106 107 64.0-132 0.749 20
Bromomethane 0.125 0.102 0.102 81.6 81.6 56.0-147 0.000 20 n-Butylbenzene 0.125 0.116 0.112 92.8 89.6 68.0-135 3.51 20 sec-Butylbenzene 0.125 0.128 0.122 102 97.6 74.0-130 4.80 20 tert-Butylbenzene 0.125 0.134 0.126 107 101 75.0-127 6.15 20 Carbon tetrachloride 0.125 0.141 0.145 113 116 66.0-128 2.80 20 Chlorobenzene 0.125 0.124 0.122 99.2 97.6 76.0-128 1.63 20 Chlorodibromomethane 0.125 0.128 0.130 102 104 74.0-127 1.55 20 Chloroethane 0.125 0.102 0.0973 81.6 77.8 61.0-134 4.72 20 Chloroform 0.125 0.129 0.134 103 107 72.0-123 3.80 20
Chloromethane 0.125 0.125 0.107 100 85.6 51.0-138 15.5 20 2-Chlorotoluene 0.125 0.121 0.114 96.8 91.2 75.0-124 5.96 20 4-Chlorotoluene 0.125 0.130 0.126 104 101 75.0-124 3.12 20 1,2-Dibromo-3-Chloropropane 0.125 0.104 0.112 83.2 89.6 59.0-130 7.41 20 1,2-Dibromoethane 0.125 0.134 0.129 107 103 74.0-128 3.80 20 Dibromomethane 0.125 0.132 0.134 106 107 75.0-122 1.50 20 1,2-Dichlorobenzene 0.125 0.115 0.116 92.0 92.8 76.0-124 0.866 20 1,3-Dichlorobenzene 0.125 0.126 0.123 101 98.4 76.0-125 2.41 20 1,4-Dichlorobenzene 0.125 0.123 0.121 98.4 96.8 77.0-121 1.64 20 Dichlorodifluoromethane 0.125 0.134 0.151 107 121 43.0-156 11.9 20 1,1-Dichloroethane 0.125 0.135 0.141 108 113 70.0-127 4.35 20 1,2-Dichloroethane 0.125 0.147 0.150 118 120 65.0-131 2.02 20 1,1-Dichloroethene 0.125 0.148 0.149 118 119 65.0-131 0.673 20 cis-1,2-Dichloroethene 0.125 0.128 0.129 102 103 73.0-125 0.778 20 trans-1,2-Dichloroethene 0.125 0.128 0.128 102 102 71.0-125 0.000 20 1,2-Dichloropropane 0.125 0.145 0.143 116 114 74.0-125 1.39 20 1,1-Dichloropropene 0.125 0.132 0.138 106 110 73.0-125 4.44 20 1,3-Dichloropropane 0.125 0.120 0.117 96.0 93.6 80.0-125 2.53 20 cis-1,3-Dichloropropene 0.125 0.136 0.131 109 105 76.0-127 3.75 20 trans-1,3-Dichloropropene 0.125 0.123 0.119 98.4 95.2 73.0-127 3.31 20 2,2-Dichloropropane 0.125 0.134 0.136 107 109 59.0-135 1.48 20 Di-isopropyl ether 0.125 0.149 0.151 119 121 60.0-136 1.33 20 Ethylbenzene 0.125 0.121 0.125 96.8 100 74.0-126 3.25 20 Hexachloro-1,3-butadiene 0.125 0.103 0.100 82.4 80.0 57.0-150 2.96 20 Isopropylbenzene 0.125 0.127 0.130 102 104 72.0-127 2.33 20 p-Isopropyltoluene 0.125 0.128 0.123 102 98.4 72.0-133 3.98 20 2-Butanone (MEK) 0.625 0.695 0.768 111 123 30.0-160 9.98 24 Methylene Chloride 0.125 0.127 0.136 102 109 68.0-123 6.84 20 4-Methyl-2-pentanone (MIBK) 0.625 0.684 0.695 109 111 56.0-143 1.60 20 Methyl tert-butyl ether 0.125 0.120 0.129 96.0 103 66.0-132 7.23 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328977-01,02,03 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3634778-1 03/22/21 13:57 • (LCSD) R3634778-2 03/22/21 14:31 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Naphthalene 0.125 0.0968 0.0966 77.4 77.3 59.0-130 0.207 20 n-Propylbenzene 0.125 0.128 0.123 102 98.4 74.0-126 3.98 20 Styrene 0.125 0.131 0.130 105 104 72.0-127 0.766 20
1,1,1,2-Tetrachloroethane 0.125 0.123 0.125 98.4 100 74.0-129 1.61 20 1,1,2,2-Tetrachloroethane 0.125 0.116 0.113 92.8 90.4 68.0-128 2.62 20 Tetrachloroethene 0.125 0.136 0.133 109 106 70.0-136 2.23 20 Toluene 0.125 0.121 0.119 96.8 95.2 75.0-121 1.67 20
1,1,2-Trichlorotrifluoroethane 0.125 0.148 0.145 118 116 61.0-139 2.05 20 1,2,3-Trichlorobenzene 0.125 0.0986 0.0959 78.9 76.7 59.0-139 2.78 20 1,2,4-Trichlorobenzene 0.125 0.101 0.101 80.8 80.8 62.0-137 0.000 20 1,1,1-Trichloroethane 0.125 0.134 0.139 107 111 69.0-126 3.66 20 1,1,2-Trichloroethane 0.125 0.115 0.113 92.0 90.4 78.0-123 1.75 20 Trichloroethene 0.125 0.133 0.131 106 105 76.0-126 1.52 20 Trichlorofluoromethane 0.125 0.121 0.122 96.8 97.6 61.0-142 0.823 20 1,2,3-Trichloropropane 0.125 0.124 0.122 99.2 97.6 67.0-129 1.63 20 1,2,3-Trimethylbenzene 0.125 0.121 0.116 96.8 92.8 74.0-124 4.22 20 1,2,4-Trimethylbenzene 0.125 0.128 0.125 102 100 70.0-126 2.37 20 1,3,5-Trimethylbenzene 0.125 0.133 0.125 106 100 73.0-127 6.20 20 Vinyl chloride 0.125 0.101 0.0990 80.8 79.2 63.0-134 2.00 20 Xylenes, Total 0.375 0.379 0.381 101 102 72.0-127 0.526 20 (S) Toluene-d8 98.5 98.4 75.0-131
(S) 4-Bromofluorobenzene 106 107 67.0-138
(S) 1,2-Dichloroethane-d4 108 110 70.0-130
L1328962-20 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328962-20 03/22/21 17:03 • (MS) R3634778-4 03/22/21 22:45 • (MSD) R3634778-5 03/22/21 23:04 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Acetone 1.13 U 0.520 0.219 46.2 19.4 1.44 10.0-160 J3 81.6 40 Acrylonitrile 1.13 U 1.13 1.15 101 102 1.44 10.0-160 1.86 40 Benzene 0.225 0.00117 0.303 0.311 134 138 1.44 10.0-149 2.85 37 Bromobenzene 0.225 U 0.300 0.308 133 137 1.44 10.0-156 2.47 38 Bromodichloromethane 0.225 U 0.276 0.284 123 126 1.44 10.0-143 2.68 37 Bromoform 0.225 U 0.261 0.258 116 114 1.44 10.0-146 1.45 36 Bromomethane 0.225 U 0.170 0.184 75.6 81.7 1.44 10.0-149 7.77 38 n-Butylbenzene 0.225 U 0.270 0.269 120 119 1.44 10.0-160 0.464 40 sec-Butylbenzene 0.225 U 0.288 0.300 128 133 1.44 10.0-159 4.26 39 tert-Butylbenzene 0.225 U 0.294 0.303 131 134 1.44 10.0-156 2.94 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328977-01,02,03 L1328962-20 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328962-20 03/22/21 17:03 • (MS) R3634778-4 03/22/21 22:45 • (MSD) R3634778-5 03/22/21 23:04 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Carbon tetrachloride 0.225 U 0.306 0.314 136 139 1.44 10.0-145 2.42 37 Chlorobenzene 0.225 U 0.278 0.276 123 123 1.44 10.0-152 0.451 39 Chlorodibromomethane 0.225 U 0.268 0.280 119 124 1.44 10.0-146 4.57 37 Chloroethane 0.225 U 0.129 0.149 57.2 66.1 1.44 10.0-146 14.4 40 Chloroform 0.225 U 0.269 0.278 119 123 1.44 10.0-146 3.20 37 Chloromethane 0.225 U 0.230 0.226 102 101 1.44 10.0-159 1.64 37 2-Chlorotoluene 0.225 U 0.270 0.276 120 123 1.44 10.0-159 2.29 38 4-Chlorotoluene 0.225 U 0.295 0.300 131 133 1.44 10.0-155 1.68 39 1,2-Dibromo-3-Chloropropane 0.225 U 0.185 0.195 82.2 86.7 1.44 10.0-151 5.26 39 1,2-Dibromoethane 0.225 U 0.275 0.276 122 123 1.44 10.0-148 0.454 34 Dibromomethane 0.225 U 0.229 0.256 102 114 1.44 10.0-147 11.3 35 1,2-Dichlorobenzene 0.225 U 0.256 0.258 114 114 1.44 10.0-155 0.487 37 1,3-Dichlorobenzene 0.225 U 0.290 0.284 129 126 1.44 10.0-153 2.18 38 1,4-Dichlorobenzene 0.225 U 0.274 0.270 122 120 1.44 10.0-151 1.38 38 Dichlorodifluoromethane 0.225 U 0.250 0.241 111 107 1.44 10.0-160 3.56 35 1,1-Dichloroethane 0.225 U 0.283 0.294 126 131 1.44 10.0-147 3.90 37 1,2-Dichloroethane 0.225 U 0.274 0.281 122 125 1.44 10.0-148 2.70 35 1,1-Dichloroethene 0.225 U 0.319 0.319 142 142 1.44 10.0-155 0.000 37 cis-1,2-Dichloroethene 0.225 U 0.260 0.261 116 116 1.44 10.0-149 0.480 37 trans-1,2-Dichloroethene 0.225 U 0.261 0.263 116 117 1.44 10.0-150 0.477 37 1,2-Dichloropropane 0.225 U 0.315 0.319 140 142 1.44 10.0-148 1.18 37 1,1-Dichloropropene 0.225 U 0.295 0.298 131 132 1.44 10.0-153 0.844 35 1,3-Dichloropropane 0.225 U 0.265 0.264 118 117 1.44 10.0-154 0.473 35 cis-1,3-Dichloropropene 0.225 U 0.291 0.304 129 135 1.44 10.0-151 4.20 37 trans-1,3-Dichloropropene 0.225 U 0.270 0.274 120 122 1.44 10.0-148 1.38 37 2,2-Dichloropropane 0.225 U 0.224 0.225 99.4 100 1.44 10.0-138 0.557 36 Di-isopropyl ether 0.225 U 0.304 0.308 135 137 1.44 10.0-147 1.23 36 Ethylbenzene 0.225 U 0.278 0.276 123 123 1.44 10.0-160 0.451 38 Hexachloro-1,3-butadiene 0.225 U 0.291 0.290 129 129 1.44 10.0-160 0.430 40 Isopropylbenzene 0.225 U 0.284 0.278 126 123 1.44 10.0-155 2.23 38 p-Isopropyltoluene 0.225 0.0215 0.305 0.311 126 129 1.44 10.0-160 2.03 40 2-Butanone (MEK) 1.13 U 1.03 1.01 91.1 90.0 1.44 10.0-160 1.23 40 Methylene Chloride 0.225 U 0.263 0.196 117 87.2 1.44 10.0-141 28.9 37 4-Methyl-2-pentanone (MIBK) 1.13 U 1.28 1.30 113 116 1.44 10.0-160 1.94 35 Methyl tert-butyl ether 0.225 U 0.228 0.234 101 104 1.44 11.0-147 2.71 35 Naphthalene 0.225 U 0.196 0.194 87.2 86.1 1.44 10.0-160 1.28 36 n-Propylbenzene 0.225 U 0.288 0.289 128 128 1.44 10.0-158 0.434 38 Styrene 0.225 0.0659 0.349 0.360 126 131 1.44 10.0-160 3.17 40 1,1,1,2-Tetrachloroethane 0.225 U 0.258 0.261 114 116 1.44 10.0-149 1.45 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1328977-01,02,03 L1328962-20 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328962-20 03/22/21 17:03 • (MS) R3634778-4 03/22/21 22:45 • (MSD) R3634778-5 03/22/21 23:04 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
1,1,2,2-Tetrachloroethane 0.225 U 0.246 0.264 109 117 1.44 10.0-160 6.86 35 Tetrachloroethene 0.225 U 0.306 0.313 136 139 1.44 10.0-156 2.02 39 Toluene 0.225 0.0346 0.304 0.308 120 121 1.44 10.0-156 1.23 38 1,1,2-Trichlorotrifluoroethane 0.225 U 0.345 0.340 153 151 1.44 10.0-160 1.46 36 1,2,3-Trichlorobenzene 0.225 U 0.206 0.239 91.7 106 1.44 10.0-160 14.6 40 1,2,4-Trichlorobenzene 0.225 U 0.245 0.241 109 107 1.44 10.0-160 1.54 40 1,1,1-Trichloroethane 0.225 U 0.306 0.306 136 136 1.44 10.0-144 0.000 35 1,1,2-Trichloroethane 0.225 U 0.256 0.264 114 117 1.44 10.0-160 2.88 35 Trichloroethene 0.225 U 0.284 0.301 126 134 1.44 10.0-156 5.98 38 Trichlorofluoromethane 0.225 U 0.171 0.186 76.1 82.8 1.44 10.0-160 8.39 40 1,2,3-Trichloropropane 0.225 U 0.258 0.260 114 116 1.44 10.0-156 0.966 35 1,2,3-Trimethylbenzene 0.225 0.00478 0.265 0.269 116 117 1.44 10.0-160 1.41 36 1,2,4-Trimethylbenzene 0.225 0.00715 0.293 0.293 127 127 1.44 10.0-160 0.000 36 1,3,5-Trimethylbenzene 0.225 0.00478 0.298 0.296 130 130 1.44 10.0-160 0.421 38 Vinyl chloride 0.225 U 0.195 0.204 86.7 90.6 1.44 10.0-160 4.39 37 Xylenes, Total 0.675 0.0155 0.704 0.838 102 122 1.44 10.0-160 17.4 38 (S) Toluene-d8 100 101 75.0-131
(S) 4-Bromofluorobenzene 104 105 67.0-138
(S) 1,2-Dichloroethane-d4 97.2 94.6 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Semi-Volatile Organic Compounds (GC) by Method 8015 L1328977-01,02,03 Method Blank (MB)
(MB) R3634065-1 03/24/21 01:51
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
C12-C22 Hydrocarbons U 0.733 4.00
C22-C32 Hydrocarbons U 1.33 4.00
C32-C40 Hydrocarbons U 1.33 4.00
(S) o-Terphenyl 84.4 18.0-148
Laboratory Control Sample (LCS)
(LCS) R3634065-2 03/24/21 02:05
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
C22-C32 Hydrocarbons 25.0 18.2 72.8 50.0-150
C12-C22 Hydrocarbons 25.0 20.8 83.2 50.0-150
(S) o-Terphenyl 63.8 18.0-148
L1328417-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328417-01 03/24/21 04:17 • (MS) R3634065-3 03/24/21 04:31 • (MSD) R3634065-4 03/24/21 04:46 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
C22-C32 Hydrocarbons 30.4 U 24.8 27.7 81.6 91.0 1 50.0-150 10.9 20 C12-C22 Hydrocarbons 30.4 0.933 29.3 32.3 93.3 103 1 50.0-150 9.68 20 (S) o-Terphenyl 62.6 64.3 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Abbreviations and Definitions
(dry) Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].

MDL Method Detection Limit.

MDL (dry) Method Detection Limit.

RDL Reported Detection Limit.

RDL (dry) Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
B The same analyte is found in the associated blank.

J The identification of the analyte is acceptable; the reported value is an estimate.

J3 The associated batch QC was outside the established quality control range for precision.

J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1328977 03/26/21 12:26 781 of 1252 30 of 36 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

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ANALYTICAL REPORT
March 29, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1329287
Samples Received: 03/20/2021
Project Number: 01-LP-001
Description: Lane Partners,222 E 4th St
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

March 29, 2021
[Preliminary Report]
Jared Starkey
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.

RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 09:17 1 of 30 March 29, 2021
Jason Romer
Project Manager
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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 7
SB-08-COMP L1329287-01 7
SB-03-COMP L1329287-02 10
Qc: Quality Control Summary 13
Total Solids by Method 2540 G-2011 13
Mercury by Method 7471A 14
Metals (ICP) by Method 6010B 15
Volatile Organic Compounds (GC) by Method 8015 17
Volatile Organic Compounds (GC/MS) by Method 8260B 18
Semi-Volatile Organic Compounds (GC) by Method 8015 25
Gl: Glossary of Terms 26
Al: Accreditations & Locations 27
Sc: Sample Chain of Custody 28
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-08-COMP L1329287-01 Solid Erin Male 03/18/21 00:00 03/20/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1638845 1 03/23/21 14:53 03/23/21 15:30 KDW Mt. Juliet, TN Mercury by Method 7471A WG1641650 1 03/27/21 16:09 03/28/21 13:21 BMF Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640596 1 03/25/21 17:45 03/25/21 21:22 CCE Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1639760 1 03/23/21 08:54 03/24/21 20:44 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1640318 1 03/23/21 08:54 03/25/21 15:52 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639779 1 03/24/21 23:45 03/25/21 23:46 TJD Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-03-COMP L1329287-02 Solid Erin Male 03/18/21 00:00 03/20/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1638845 1 03/23/21 14:53 03/23/21 15:30 KDW Mt. Juliet, TN Mercury by Method 7471A WG1641650 1 03/27/21 16:09 03/28/21 13:33 BMF Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640596 1 03/25/21 17:45 03/25/21 21:39 CCE Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015 WG1639760 1 03/23/21 08:54 03/24/21 21:06 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1640318 1 03/23/21 08:54 03/25/21 15:33 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1640688 1 03/23/21 08:54 03/26/21 16:41 TPR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1639779 1 03/24/21 23:45 03/25/21 22:33 TJD Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 09:17 4 of 30 Jason Romer
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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DETECTION SUMMARY
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-08-COMP L1329287-01 Mercury 0.0377 J 0.0226 0.0502 1 03/28/2021 13:21 WG1641650 SB-03-COMP L1329287-02 Mercury 0.0275 J 0.0215 0.0479 1 03/28/2021 13:33 WG1641650 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-08-COMP L1329287-01 Barium 121 0.107 0.627 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Beryllium 0.471 0.0395 0.251 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Cadmium 0.152 J 0.0591 0.627 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Chromium 65.3 0.167 1.25 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Cobalt 19.2 0.102 1.25 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Copper 24.3 0.502 2.51 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Lead 6.78 0.261 0.627 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Nickel 131 J6 0.166 2.51 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Vanadium 43.5 0.635 2.51 1 03/25/2021 21:22 WG1640596 SB-08-COMP L1329287-01 Zinc 41.6 1.04 6.27 1 03/25/2021 21:22 WG1640596 SB-03-COMP L1329287-02 Arsenic 0.880 J 0.620 2.39 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Barium 92.6 0.102 0.598 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Beryllium 0.285 0.0377 0.239 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Cadmium 0.117 J 0.0564 0.598 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Chromium 46.1 0.159 1.20 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Cobalt 15.0 0.0970 1.20 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Copper 17.4 0.479 2.39 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Lead 5.10 0.249 0.598 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Nickel 61.0 0.158 2.39 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Vanadium 36.2 0.605 2.39 1 03/25/2021 21:39 WG1640596 SB-03-COMP L1329287-02 Zinc 32.7 0.995 5.98 1 03/25/2021 21:39 WG1640596 Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-08-COMP L1329287-01 TPHG C5 - C12 0.0473 J 0.0416 0.125 1 03/24/2021 20:44 WG1639760 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-08-COMP L1329287-01 2-Butanone (MEK) 0.152 B 0.0958 0.151 1 03/25/2021 15:52 WG1640318 SB-08-COMP L1329287-01 1,2,4-Trimethylbenzene 0.00347 B J 0.00238 0.00754 1 03/25/2021 15:52 WG1640318 SB-08-COMP L1329287-01 Xylenes, Total 0.00173 B J J3 0.00133 0.00980 1 03/25/2021 15:52 WG1640318 SB-03-COMP L1329287-02 2-Butanone (MEK) 0.164 B 0.0885 0.139 1 03/25/2021 15:33 WG1640318 SB-03-COMP L1329287-02 1,2,4-Trimethylbenzene 0.00443 B J 0.00220 0.00697 1 03/25/2021 15:33 WG1640318 SB-03-COMP L1329287-02 Xylenes, Total 0.00223 B J 0.00123 0.00906 1 03/25/2021 15:33 WG1640318 Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-08-COMP L1329287-01 C12-C22 Hydrocarbons 4.18 J 0.919 5.02 1 03/25/2021 23:46 WG1639779 SB-08-COMP L1329287-01 C22-C32 Hydrocarbons 7.06 1.67 5.02 1 03/25/2021 23:46 WG1639779 SB-08-COMP L1329287-01 C32-C40 Hydrocarbons 4.04 J 1.67 5.02 1 03/25/2021 23:46 WG1639779 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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DETECTION SUMMARY
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-03-COMP L1329287-02 C12-C22 Hydrocarbons 1.17 J 0.877 4.79 1 03/25/2021 22:33 WG1639779 SB-03-COMP L1329287-02 C22-C32 Hydrocarbons 2.06 J 1.59 4.79 1 03/25/2021 22:33 WG1639779 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1329287
SB-08-COMP
Collected date/time: 03/18/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 79.7 1 03/23/2021 15:30 WG1638845
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0377 J 0.0226 0.0502 1 03/28/2021 13:21 WG1641650 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.682 2.51 1 03/25/2021 21:22 WG1640596
Arsenic U 0.650 2.51 1 03/25/2021 21:22 WG1640596
Barium 121 0.107 0.627 1 03/25/2021 21:22 WG1640596
Beryllium 0.471 0.0395 0.251 1 03/25/2021 21:22 WG1640596 Cadmium 0.152 J 0.0591 0.627 1 03/25/2021 21:22 WG1640596 Chromium 65.3 0.167 1.25 1 03/25/2021 21:22 WG1640596
Cobalt 19.2 0.102 1.25 1 03/25/2021 21:22 WG1640596
Copper 24.3 0.502 2.51 1 03/25/2021 21:22 WG1640596
Lead 6.78 0.261 0.627 1 03/25/2021 21:22 WG1640596
Molybdenum U 0.137 0.627 1 03/25/2021 21:22 WG1640596
Nickel 131 J6 0.166 2.51 1 03/25/2021 21:22 WG1640596
Selenium U 0.958 2.51 1 03/25/2021 21:22 WG1640596
Silver U 0.159 1.25 1 03/25/2021 21:22 WG1640596
Thallium U 0.494 2.51 1 03/25/2021 21:22 WG1640596
Vanadium 43.5 0.635 2.51 1 03/25/2021 21:22 WG1640596
Zinc 41.6 1.04 6.27 1 03/25/2021 21:22 WG1640596
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 0.0473 J 0.0416 0.125 1 03/24/2021 20:44 WG1639760 (S) a,a,a-Trifluorotoluene(FID) 111 77.0-120 03/24/2021 20:44 WG1639760 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0551 0.0754 1 03/25/2021 15:52 WG1640318 Acrylonitrile U 0.00544 0.0189 1 03/25/2021 15:52 WG1640318 Benzene U J3 0.000704 0.00151 1 03/25/2021 15:52 WG1640318 Bromobenzene U 0.00136 0.0189 1 03/25/2021 15:52 WG1640318 Bromodichloromethane U 0.00109 0.00377 1 03/25/2021 15:52 WG1640318 Bromoform U 0.00176 0.0377 1 03/25/2021 15:52 WG1640318 Bromomethane U J3 0.00297 0.0189 1 03/25/2021 15:52 WG1640318 n-Butylbenzene U J3 0.00792 0.0189 1 03/25/2021 15:52 WG1640318 sec-Butylbenzene U J3 0.00434 0.0189 1 03/25/2021 15:52 WG1640318 tert-Butylbenzene U J3 0.00294 0.00754 1 03/25/2021 15:52 WG1640318 Carbon tetrachloride U J3 0.00135 0.00754 1 03/25/2021 15:52 WG1640318 Chlorobenzene U 0.000317 0.00377 1 03/25/2021 15:52 WG1640318 Chlorodibromomethane U 0.000923 0.00377 1 03/25/2021 15:52 WG1640318 Chloroethane U J3 0.00256 0.00754 1 03/25/2021 15:52 WG1640318 Chloroform U J3 0.00155 0.00377 1 03/25/2021 15:52 WG1640318 Chloromethane U J3 0.00656 0.0189 1 03/25/2021 15:52 WG1640318 2-Chlorotoluene U 0.00130 0.00377 1 03/25/2021 15:52 WG1640318 4-Chlorotoluene U 0.000679 0.00754 1 03/25/2021 15:52 WG1640318 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1329287
SB-08-COMP
Collected date/time: 03/18/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00588 0.0377 1 03/25/2021 15:52 WG1640318 1,2-Dibromoethane U 0.000977 0.00377 1 03/25/2021 15:52 WG1640318 Dibromomethane U 0.00113 0.00754 1 03/25/2021 15:52 WG1640318 1,2-Dichlorobenzene U 0.000641 0.00754 1 03/25/2021 15:52 WG1640318 1,3-Dichlorobenzene U 0.000905 0.00754 1 03/25/2021 15:52 WG1640318 1,4-Dichlorobenzene U 0.00106 0.00754 1 03/25/2021 15:52 WG1640318 Dichlorodifluoromethane U J3 0.00243 0.00377 1 03/25/2021 15:52 WG1640318 1,1-Dichloroethane U J3 0.000741 0.00377 1 03/25/2021 15:52 WG1640318 1,2-Dichloroethane U 0.000979 0.00377 1 03/25/2021 15:52 WG1640318 1,1-Dichloroethene U J3 0.000914 0.00377 1 03/25/2021 15:52 WG1640318 cis-1,2-Dichloroethene U J3 0.00111 0.00377 1 03/25/2021 15:52 WG1640318 trans-1,2-Dichloroethene U J3 0.00157 0.00754 1 03/25/2021 15:52 WG1640318 1,2-Dichloropropane U J3 0.00214 0.00754 1 03/25/2021 15:52 WG1640318 1,1-Dichloropropene U J3 0.00122 0.00377 1 03/25/2021 15:52 WG1640318 1,3-Dichloropropane U 0.000756 0.00754 1 03/25/2021 15:52 WG1640318 cis-1,3-Dichloropropene U 0.00114 0.00377 1 03/25/2021 15:52 WG1640318 trans-1,3-Dichloropropene U 0.00172 0.00754 1 03/25/2021 15:52 WG1640318 2,2-Dichloropropane U J3 0.00208 0.00377 1 03/25/2021 15:52 WG1640318 Di-isopropyl ether U 0.000618 0.00151 1 03/25/2021 15:52 WG1640318 Ethylbenzene U J3 0.00111 0.00377 1 03/25/2021 15:52 WG1640318 Hexachloro-1,3-butadiene U J3 0.00905 0.0377 1 03/25/2021 15:52 WG1640318 Isopropylbenzene U J3 0.000641 0.00377 1 03/25/2021 15:52 WG1640318 p-Isopropyltoluene U J3 0.00385 0.00754 1 03/25/2021 15:52 WG1640318 2-Butanone (MEK) 0.152 B 0.0958 0.151 1 03/25/2021 15:52 WG1640318 Methylene Chloride U 0.0100 0.0377 1 03/25/2021 15:52 WG1640318 4-Methyl-2-pentanone (MIBK) U 0.00344 0.0377 1 03/25/2021 15:52 WG1640318 Methyl tert-butyl ether U 0.000528 0.00151 1 03/25/2021 15:52 WG1640318 Naphthalene U 0.00736 0.0189 1 03/25/2021 15:52 WG1640318 n-Propylbenzene U J3 0.00143 0.00754 1 03/25/2021 15:52 WG1640318 Styrene U 0.000345 0.0189 1 03/25/2021 15:52 WG1640318
1,1,1,2-Tetrachloroethane U 0.00143 0.00377 1 03/25/2021 15:52 WG1640318 1,1,2,2-Tetrachloroethane U 0.00105 0.00377 1 03/25/2021 15:52 WG1640318 1,1,2-Trichlorotrifluoroethane U J3 0.00114 0.00377 1 03/25/2021 15:52 WG1640318 Tetrachloroethene U J3 0.00135 0.00377 1 03/25/2021 15:52 WG1640318 Toluene U J3 0.00196 0.00754 1 03/25/2021 15:52 WG1640318 1,2,3-Trichlorobenzene U 0.0111 0.0189 1 03/25/2021 15:52 WG1640318 1,2,4-Trichlorobenzene U 0.00664 0.0189 1 03/25/2021 15:52 WG1640318 1,1,1-Trichloroethane U J3 0.00139 0.00377 1 03/25/2021 15:52 WG1640318 1,1,2-Trichloroethane U 0.000900 0.00377 1 03/25/2021 15:52 WG1640318 Trichloroethene U J3 0.000881 0.00151 1 03/25/2021 15:52 WG1640318 Trichlorofluoromethane U J3 0.00125 0.00377 1 03/25/2021 15:52 WG1640318 1,2,3-Trichloropropane U 0.00244 0.0189 1 03/25/2021 15:52 WG1640318 1,2,4-Trimethylbenzene 0.00347 B J 0.00238 0.00754 1 03/25/2021 15:52 WG1640318 1,2,3-Trimethylbenzene U 0.00238 0.00754 1 03/25/2021 15:52 WG1640318 1,3,5-Trimethylbenzene U J3 0.00302 0.00754 1 03/25/2021 15:52 WG1640318 Vinyl chloride U J3 0.00175 0.00377 1 03/25/2021 15:52 WG1640318 Xylenes, Total 0.00173 B J J3 0.00133 0.00980 1 03/25/2021 15:52 WG1640318 (S) Toluene-d8 113 75.0-131 03/25/2021 15:52 WG1640318
(S) 4-Bromofluorobenzene 89.8 67.0-138 03/25/2021 15:52 WG1640318 (S) 1,2-Dichloroethane-d4 91.6 70.0-130 03/25/2021 15:52 WG1640318 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1329287
SB-08-COMP
Collected date/time: 03/18/21 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 4.18 J 0.919 5.02 1 03/25/2021 23:46 WG1639779 C22-C32 Hydrocarbons 7.06 1.67 5.02 1 03/25/2021 23:46 WG1639779 C32-C40 Hydrocarbons 4.04 J 1.67 5.02 1 03/25/2021 23:46 WG1639779 (S) o-Terphenyl 108 18.0-148 03/25/2021 23:46 WG1639779 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1329287
SB-03-COMP
Collected date/time: 03/18/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 83.6 1 03/23/2021 15:30 WG1638845
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0275 J 0.0215 0.0479 1 03/28/2021 13:33 WG1641650 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.651 2.39 1 03/25/2021 21:39 WG1640596
Arsenic 0.880 J 0.620 2.39 1 03/25/2021 21:39 WG1640596 Barium 92.6 0.102 0.598 1 03/25/2021 21:39 WG1640596
Beryllium 0.285 0.0377 0.239 1 03/25/2021 21:39 WG1640596 Cadmium 0.117 J 0.0564 0.598 1 03/25/2021 21:39 WG1640596 Chromium 46.1 0.159 1.20 1 03/25/2021 21:39 WG1640596
Cobalt 15.0 0.0970 1.20 1 03/25/2021 21:39 WG1640596
Copper 17.4 0.479 2.39 1 03/25/2021 21:39 WG1640596
Lead 5.10 0.249 0.598 1 03/25/2021 21:39 WG1640596
Molybdenum U 0.130 0.598 1 03/25/2021 21:39 WG1640596
Nickel 61.0 0.158 2.39 1 03/25/2021 21:39 WG1640596
Selenium U 0.914 2.39 1 03/25/2021 21:39 WG1640596
Silver U 0.152 1.20 1 03/25/2021 21:39 WG1640596
Thallium U 0.471 2.39 1 03/25/2021 21:39 WG1640596
Vanadium 36.2 0.605 2.39 1 03/25/2021 21:39 WG1640596
Zinc 32.7 0.995 5.98 1 03/25/2021 21:39 WG1640596
Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
TPHG C5 - C12 U 0.0397 0.120 1 03/24/2021 21:06 WG1639760 (S) a,a,a-Trifluorotoluene(FID) 112 77.0-120 03/24/2021 21:06 WG1639760 Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Acetone U J4 0.0509 0.0697 1 03/25/2021 15:33 WG1640318 Acrylonitrile U 0.00503 0.0174 1 03/25/2021 15:33 WG1640318 Benzene U 0.000651 0.00139 1 03/25/2021 15:33 WG1640318 Bromobenzene U 0.00125 0.0174 1 03/25/2021 15:33 WG1640318 Bromodichloromethane U 0.00101 0.00348 1 03/25/2021 15:33 WG1640318 Bromoform U 0.00163 0.0348 1 03/25/2021 15:33 WG1640318 Bromomethane U 0.00275 0.0174 1 03/25/2021 15:33 WG1640318 n-Butylbenzene U 0.00732 0.0174 1 03/25/2021 15:33 WG1640318 sec-Butylbenzene U 0.00401 0.0174 1 03/25/2021 15:33 WG1640318 tert-Butylbenzene U 0.00272 0.00697 1 03/25/2021 15:33 WG1640318 Carbon tetrachloride U 0.00125 0.00697 1 03/25/2021 15:33 WG1640318 Chlorobenzene U 0.000293 0.00348 1 03/25/2021 15:33 WG1640318 Chlorodibromomethane U 0.000853 0.00348 1 03/25/2021 15:33 WG1640318 Chloroethane U 0.00237 0.00697 1 03/25/2021 15:33 WG1640318 Chloroform U 0.00144 0.00348 1 03/25/2021 15:33 WG1640318 Chloromethane U 0.00606 0.0174 1 03/25/2021 15:33 WG1640318 2-Chlorotoluene U 0.00121 0.00348 1 03/25/2021 15:33 WG1640318 4-Chlorotoluene U 0.000627 0.00697 1 03/25/2021 15:33 WG1640318 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1329287
SB-03-COMP
Collected date/time: 03/18/21 00:00
Volatile Organic Compounds (GC/MS) by Method 8260B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
1,2-Dibromo-3-Chloropropane U 0.00544 0.0348 1 03/25/2021 15:33 WG1640318 1,2-Dibromoethane U 0.000903 0.00348 1 03/25/2021 15:33 WG1640318 Dibromomethane U 0.00105 0.00697 1 03/25/2021 15:33 WG1640318 1,2-Dichlorobenzene U 0.000592 0.00697 1 03/25/2021 15:33 WG1640318 1,3-Dichlorobenzene U 0.000836 0.00697 1 03/25/2021 15:33 WG1640318 1,4-Dichlorobenzene U 0.000976 0.00697 1 03/25/2021 15:33 WG1640318 Dichlorodifluoromethane U 0.00224 0.00348 1 03/25/2021 15:33 WG1640318 1,1-Dichloroethane U 0.000684 0.00348 1 03/25/2021 15:33 WG1640318 1,2-Dichloroethane U 0.000904 0.00348 1 03/25/2021 15:33 WG1640318 1,1-Dichloroethene U 0.000845 0.00348 1 03/25/2021 15:33 WG1640318 cis-1,2-Dichloroethene U 0.00102 0.00348 1 03/25/2021 15:33 WG1640318 trans-1,2-Dichloroethene U 0.00145 0.00697 1 03/25/2021 15:33 WG1640318 1,2-Dichloropropane U 0.00198 0.00697 1 03/25/2021 15:33 WG1640318 1,1-Dichloropropene U 0.00113 0.00348 1 03/25/2021 15:33 WG1640318 1,3-Dichloropropane U 0.000698 0.00697 1 03/25/2021 15:33 WG1640318 cis-1,3-Dichloropropene U 0.00106 0.00348 1 03/25/2021 15:33 WG1640318 trans-1,3-Dichloropropene U 0.00159 0.00697 1 03/25/2021 15:33 WG1640318 2,2-Dichloropropane U 0.00192 0.00348 1 03/25/2021 15:33 WG1640318 Di-isopropyl ether U 0.000571 0.00139 1 03/25/2021 15:33 WG1640318 Ethylbenzene U 0.00103 0.00348 1 03/25/2021 15:33 WG1640318 Hexachloro-1,3-butadiene U 0.00836 0.0348 1 03/25/2021 15:33 WG1640318 Isopropylbenzene U 0.000592 0.00348 1 03/25/2021 15:33 WG1640318 p-Isopropyltoluene U 0.00355 0.00697 1 03/25/2021 15:33 WG1640318 2-Butanone (MEK) 0.164 B 0.0885 0.139 1 03/25/2021 15:33 WG1640318 Methylene Chloride U 0.00925 0.0348 1 03/25/2021 15:33 WG1640318 4-Methyl-2-pentanone (MIBK) U 0.00318 0.0348 1 03/26/2021 16:41 WG1640688 Methyl tert-butyl ether U 0.000488 0.00139 1 03/25/2021 15:33 WG1640318 Naphthalene U 0.00680 0.0174 1 03/25/2021 15:33 WG1640318 n-Propylbenzene U 0.00132 0.00697 1 03/25/2021 15:33 WG1640318 Styrene U 0.000319 0.0174 1 03/25/2021 15:33 WG1640318
1,1,1,2-Tetrachloroethane U 0.00132 0.00348 1 03/25/2021 15:33 WG1640318 1,1,2,2-Tetrachloroethane U 0.000969 0.00348 1 03/25/2021 15:33 WG1640318 1,1,2-Trichlorotrifluoroethane U 0.00105 0.00348 1 03/25/2021 15:33 WG1640318 Tetrachloroethene U 0.00125 0.00348 1 03/25/2021 15:33 WG1640318 Toluene U 0.00181 0.00697 1 03/25/2021 15:33 WG1640318
1,2,3-Trichlorobenzene U 0.0102 0.0174 1 03/25/2021 15:33 WG1640318 1,2,4-Trichlorobenzene U 0.00613 0.0174 1 03/25/2021 15:33 WG1640318 1,1,1-Trichloroethane U 0.00129 0.00348 1 03/25/2021 15:33 WG1640318 1,1,2-Trichloroethane U 0.000832 0.00348 1 03/25/2021 15:33 WG1640318 Trichloroethene U 0.000814 0.00139 1 03/25/2021 15:33 WG1640318 Trichlorofluoromethane U 0.00115 0.00348 1 03/25/2021 15:33 WG1640318 1,2,3-Trichloropropane U 0.00226 0.0174 1 03/25/2021 15:33 WG1640318 1,2,4-Trimethylbenzene 0.00443 B J 0.00220 0.00697 1 03/25/2021 15:33 WG1640318 1,2,3-Trimethylbenzene U 0.00220 0.00697 1 03/25/2021 15:33 WG1640318 1,3,5-Trimethylbenzene U 0.00279 0.00697 1 03/25/2021 15:33 WG1640318 Vinyl chloride U 0.00162 0.00348 1 03/25/2021 15:33 WG1640318 Xylenes, Total 0.00223 B J 0.00123 0.00906 1 03/25/2021 15:33 WG1640318 (S) Toluene-d8 108 75.0-131 03/25/2021 15:33 WG1640318
(S) Toluene-d8 106 75.0-131 03/26/2021 16:41 WG1640688
(S) 4-Bromofluorobenzene 88.4 67.0-138 03/25/2021 15:33 WG1640318 (S) 4-Bromofluorobenzene 101 67.0-138 03/26/2021 16:41 WG1640688 (S) 1,2-Dichloroethane-d4 89.6 70.0-130 03/25/2021 15:33 WG1640318 (S) 1,2-Dichloroethane-d4 95.1 70.0-130 03/26/2021 16:41 WG1640688 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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L1329287
SB-03-COMP
Collected date/time: 03/18/21 00:00
Semi-Volatile Organic Compounds (GC) by Method 8015
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
C12-C22 Hydrocarbons 1.17 J 0.877 4.79 1 03/25/2021 22:33 WG1639779 C22-C32 Hydrocarbons 2.06 J 1.59 4.79 1 03/25/2021 22:33 WG1639779 C32-C40 Hydrocarbons U 1.59 4.79 1 03/25/2021 22:33 WG1639779 (S) o-Terphenyl 105 18.0-148 03/25/2021 22:33 WG1639779 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 794 of 1252 12 of 30 WG1638845 QUALITY CONTROL SUMMARY
Total Solids by Method 2540 G-2011 L1329287-01,02
Method Blank (MB)
(MB) R3634209-1 03/23/21 15:30
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.00200
L1329283-05 Original Sample (OS) • Duplicate (DUP)
(OS) L1329283-05 03/23/21 15:30 • (DUP) R3634209-3 03/23/21 15:30 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 82.1 81.4 1 0.810 10
Laboratory Control Sample (LCS)
(LCS) R3634209-2 03/23/21 15:30
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 795 of 1252 13 of 30 WG1641650 QUALITY CONTROL SUMMARY
Mercury by Method 7471A L1329287-01,02
Method Blank (MB)
(MB) R3635602-1 03/28/21 13:17
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Mercury U 0.0180 0.0400
Laboratory Control Sample (LCS)
(LCS) R3635602-2 03/28/21 13:19
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Mercury 0.500 0.469 93.9 80.0-120
L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/28/21 13:21 • (MS) R3635602-3 03/28/21 13:23 • (MSD) R3635602-4 03/28/21 13:25 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Mercury 0.627 0.0377 0.713 0.702 108 106 1 75.0-125 1.54 20 L1330967-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1330967-01 03/28/21 13:27 • (MS) R3635602-5 03/28/21 13:29 • (MSD) R3635602-6 03/28/21 13:31 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Mercury 0.617 U 0.532 0.565 86.3 91.6 1 75.0-125 5.94 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 796 of 1252 14 of 30 WG1640596 QUALITY CONTROL SUMMARY
Metals (ICP) by Method 6010B L1329287-01,02
Method Blank (MB)
(MB) R3635017-1 03/25/21 21:17
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Antimony U 0.544 2.00
Arsenic U 0.518 2.00
Barium U 0.0852 0.500
Beryllium U 0.0315 0.200
Cadmium U 0.0471 0.500
Chromium U 0.133 1.00
Cobalt U 0.0811 1.00
Copper U 0.400 2.00
Lead U 0.208 0.500
Molybdenum U 0.109 0.500
Nickel U 0.132 2.00
Selenium U 0.764 2.00
Silver U 0.127 1.00
Thallium U 0.394 2.00
Vanadium U 0.506 2.00
Zinc U 0.832 5.00
Laboratory Control Sample (LCS)
(LCS) R3635017-2 03/25/21 21:19
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Antimony 100 95.4 95.4 80.0-120
Arsenic 100 95.9 95.9 80.0-120
Barium 100 102 102 80.0-120
Beryllium 100 99.6 99.6 80.0-120
Cadmium 100 96.4 96.4 80.0-120
Chromium 100 97.8 97.8 80.0-120
Cobalt 100 101 101 80.0-120
Copper 100 96.1 96.1 80.0-120
Lead 100 98.8 98.8 80.0-120
Molybdenum 100 103 103 80.0-120
Nickel 100 101 101 80.0-120
Selenium 100 95.9 95.9 80.0-120
Silver 20.0 18.9 94.5 80.0-120
Thallium 100 98.0 98.0 80.0-120
Vanadium 100 99.6 99.6 80.0-120
Zinc 100 98.4 98.4 80.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 797 of 1252 15 of 30 WG1640596 QUALITY CONTROL SUMMARY
Metals (ICP) by Method 6010B L1329287-01,02
L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/25/21 21:22 • (MS) R3635017-5 03/25/21 21:30 • (MSD) R3635017-6 03/25/21 21:33 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Antimony 125 U 103 94.8 81.9 75.6 1 75.0-125 8.01 20
Arsenic 125 U 110 106 87.7 84.2 1 75.0-125 4.03 20
Barium 125 121 220 223 78.9 81.3 1 75.0-125 1.38 20
Beryllium 125 0.471 120 115 95.3 91.1 1 75.0-125 4.42 20 Cadmium 125 0.152 117 111 92.9 88.7 1 75.0-125 4.61 20
Chromium 125 65.3 171 175 84.0 87.6 1 75.0-125 2.65 20
Cobalt 125 19.2 140 139 96.6 95.8 1 75.0-125 0.725 20
Copper 125 24.3 137 132 89.6 86.0 1 75.0-125 3.35 20
Lead 125 6.78 128 124 96.4 93.3 1 75.0-125 3.06 20
Molybdenum 125 U 117 111 93.2 88.6 1 75.0-125 5.00 20
Nickel 125 131 221 247 72.1 92.3 1 75.0-125 J6 10.8 20
Selenium 125 U 103 101 82.4 80.2 1 75.0-125 2.77 20
Silver 25.1 U 23.1 21.9 92.2 87.2 1 75.0-125 5.60 20
Thallium 125 U 118 112 94.3 89.3 1 75.0-125 5.53 20
Vanadium 125 43.5 150 154 85.3 88.2 1 75.0-125 2.38 20
Zinc 125 41.6 150 149 86.4 85.8 1 75.0-125 0.482 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 798 of 1252 16 of 30 WG1639760 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC) by Method 8015 L1329287-01,02 Method Blank (MB)
(MB) R3634648-3 03/24/21 19:03
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
TPHG C5 - C12 U 0.0332 0.100
(S)
a,a,a-Trifluorotoluene(FID) 116 77.0-120
Laboratory Control Sample (LCS)
(LCS) R3634648-2 03/24/21 17:56
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
TPHG C5 - C12 5.50 6.27 114 72.0-125
(S)
a,a,a-Trifluorotoluene(FID) 111 77.0-120
L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/24/21 20:44 • (MS) R3634648-4 03/24/21 22:34 • (MSD) R3634648-5 03/24/21 22:56 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
TPHG C5 - C12 6.76 0.0473 2.90 3.11 42.2 45.3 1 10.0-141 7.10 29 (S)
a,a,a-Trifluorotoluene(FID) 98.6 98.8 77.0-120
L1329289-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329289-01 03/24/21 22:12 • (MS) R3634648-6 03/24/21 23:18 • (MSD) R3634648-7 03/24/21 23:40 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
TPHG C5 - C12 6.15 U 4.27 3.88 69.5 62.5 1 10.0-141 9.68 29 (S)
a,a,a-Trifluorotoluene(FID) 101 97.6 77.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 799 of 1252 17 of 30 WG1640318 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-01,02 Method Blank (MB)
(MB) R3634702-3 03/25/21 07:41
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Acetone U 0.0365 0.0500
Acrylonitrile U 0.00361 0.0125
Benzene U 0.000467 0.00100
Bromobenzene U 0.000900 0.0125
Bromodichloromethane U 0.000725 0.00250
Bromoform U 0.00117 0.0250
Bromomethane U 0.00197 0.0125
n-Butylbenzene U 0.00525 0.0125
sec-Butylbenzene U 0.00288 0.0125
tert-Butylbenzene U 0.00195 0.00500
Carbon tetrachloride U 0.000898 0.00500
Chlorobenzene U 0.000210 0.00250
Chlorodibromomethane U 0.000612 0.00250
Chloroethane U 0.00170 0.00500
Chloroform U 0.00103 0.00250
Chloromethane U 0.00435 0.0125
2-Chlorotoluene U 0.000865 0.00250
4-Chlorotoluene U 0.000450 0.00500
1,2-Dibromo-3-Chloropropane U 0.00390 0.0250
1,2-Dibromoethane U 0.000648 0.00250
Dibromomethane U 0.000750 0.00500
1,2-Dichlorobenzene U 0.000425 0.00500
1,3-Dichlorobenzene U 0.000600 0.00500
1,4-Dichlorobenzene U 0.000700 0.00500
Dichlorodifluoromethane U 0.00161 0.00250
1,1-Dichloroethane U 0.000491 0.00250
1,2-Dichloroethane U 0.000649 0.00250
1,1-Dichloroethene U 0.000606 0.00250
cis-1,2-Dichloroethene U 0.000734 0.00250
trans-1,2-Dichloroethene U 0.00104 0.00500
1,2-Dichloropropane U 0.00142 0.00500
1,1-Dichloropropene U 0.000809 0.00250
1,3-Dichloropropane U 0.000501 0.00500
cis-1,3-Dichloropropene U 0.000757 0.00250
trans-1,3-Dichloropropene U 0.00114 0.00500
2,2-Dichloropropane U 0.00138 0.00250
Di-isopropyl ether U 0.000410 0.00100
Ethylbenzene U 0.000737 0.00250
Hexachloro-1,3-butadiene U 0.00600 0.0250
Isopropylbenzene U 0.000425 0.00250
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 800 of 1252 18 of 30 WG1640318 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-01,02 Method Blank (MB)
(MB) R3634702-3 03/25/21 07:41
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
p-Isopropyltoluene U 0.00255 0.00500
2-Butanone (MEK) 0.112 0.0635 0.100
Methylene Chloride U 0.00664 0.0250
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
Methyl tert-butyl ether U 0.000350 0.00100
Naphthalene U 0.00488 0.0125
n-Propylbenzene U 0.000950 0.00500
Styrene U 0.000229 0.0125
1,1,1,2-Tetrachloroethane U 0.000948 0.00250
1,1,2,2-Tetrachloroethane U 0.000695 0.00250
Tetrachloroethene U 0.000896 0.00250
Toluene U 0.00130 0.00500
1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250
1,2,3-Trichlorobenzene U 0.00733 0.0125
1,2,4-Trichlorobenzene U 0.00440 0.0125
1,1,1-Trichloroethane U 0.000923 0.00250
1,1,2-Trichloroethane U 0.000597 0.00250
Trichloroethene U 0.000584 0.00100
Trichlorofluoromethane U 0.000827 0.00250
1,2,3-Trichloropropane U 0.00162 0.0125
1,2,3-Trimethylbenzene U 0.00158 0.00500
1,2,4-Trimethylbenzene 0.00408 J 0.00158 0.00500
1,3,5-Trimethylbenzene U 0.00200 0.00500
Vinyl chloride U 0.00116 0.00250
Xylenes, Total 0.00278 J 0.000880 0.00650
(S) Toluene-d8 111 75.0-131
(S) 4-Bromofluorobenzene 86.4 67.0-138
(S) 1,2-Dichloroethane-d4 96.9 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3634702-1 03/25/21 06:25 • (LCSD) R3634702-2 03/25/21 06:44 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Acetone 0.625 1.44 1.43 230 229 10.0-160 J4 J4 0.697 31 Acrylonitrile 0.625 0.878 0.869 140 139 45.0-153 1.03 22 Benzene 0.125 0.111 0.110 88.8 88.0 70.0-123 0.905 20
Bromobenzene 0.125 0.119 0.122 95.2 97.6 73.0-121 2.49 20 Bromodichloromethane 0.125 0.119 0.120 95.2 96.0 73.0-121 0.837 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 801 of 1252 19 of 30 WG1640318 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3634702-1 03/25/21 06:25 • (LCSD) R3634702-2 03/25/21 06:44 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Bromoform 0.125 0.132 0.130 106 104 64.0-132 1.53 20
Bromomethane 0.125 0.125 0.127 100 102 56.0-147 1.59 20 n-Butylbenzene 0.125 0.102 0.107 81.6 85.6 68.0-135 4.78 20 sec-Butylbenzene 0.125 0.122 0.118 97.6 94.4 74.0-130 3.33 20 tert-Butylbenzene 0.125 0.116 0.112 92.8 89.6 75.0-127 3.51 20 Carbon tetrachloride 0.125 0.112 0.121 89.6 96.8 66.0-128 7.73 20 Chlorobenzene 0.125 0.116 0.119 92.8 95.2 76.0-128 2.55 20 Chlorodibromomethane 0.125 0.120 0.120 96.0 96.0 74.0-127 0.000 20 Chloroethane 0.125 0.127 0.129 102 103 61.0-134 1.56 20 Chloroform 0.125 0.110 0.116 88.0 92.8 72.0-123 5.31 20 Chloromethane 0.125 0.123 0.119 98.4 95.2 51.0-138 3.31 20 2-Chlorotoluene 0.125 0.120 0.121 96.0 96.8 75.0-124 0.830 20 4-Chlorotoluene 0.125 0.125 0.117 100 93.6 75.0-124 6.61 20 1,2-Dibromo-3-Chloropropane 0.125 0.127 0.131 102 105 59.0-130 3.10 20 1,2-Dibromoethane 0.125 0.117 0.121 93.6 96.8 74.0-128 3.36 20 Dibromomethane 0.125 0.116 0.114 92.8 91.2 75.0-122 1.74 20 1,2-Dichlorobenzene 0.125 0.120 0.118 96.0 94.4 76.0-124 1.68 20 1,3-Dichlorobenzene 0.125 0.124 0.121 99.2 96.8 76.0-125 2.45 20 1,4-Dichlorobenzene 0.125 0.114 0.115 91.2 92.0 77.0-121 0.873 20 Dichlorodifluoromethane 0.125 0.132 0.135 106 108 43.0-156 2.25 20 1,1-Dichloroethane 0.125 0.112 0.114 89.6 91.2 70.0-127 1.77 20 1,2-Dichloroethane 0.125 0.111 0.117 88.8 93.6 65.0-131 5.26 20 1,1-Dichloroethene 0.125 0.120 0.123 96.0 98.4 65.0-131 2.47 20 cis-1,2-Dichloroethene 0.125 0.103 0.109 82.4 87.2 73.0-125 5.66 20 trans-1,2-Dichloroethene 0.125 0.104 0.109 83.2 87.2 71.0-125 4.69 20 1,2-Dichloropropane 0.125 0.122 0.122 97.6 97.6 74.0-125 0.000 20 1,1-Dichloropropene 0.125 0.119 0.122 95.2 97.6 73.0-125 2.49 20 1,3-Dichloropropane 0.125 0.118 0.122 94.4 97.6 80.0-125 3.33 20 cis-1,3-Dichloropropene 0.125 0.112 0.108 89.6 86.4 76.0-127 3.64 20 trans-1,3-Dichloropropene 0.125 0.123 0.118 98.4 94.4 73.0-127 4.15 20 2,2-Dichloropropane 0.125 0.106 0.109 84.8 87.2 59.0-135 2.79 20 Di-isopropyl ether 0.125 0.111 0.114 88.8 91.2 60.0-136 2.67 20 Ethylbenzene 0.125 0.118 0.121 94.4 96.8 74.0-126 2.51 20 Hexachloro-1,3-butadiene 0.125 0.0936 0.0985 74.9 78.8 57.0-150 5.10 20 Isopropylbenzene 0.125 0.103 0.107 82.4 85.6 72.0-127 3.81 20 p-Isopropyltoluene 0.125 0.112 0.108 89.6 86.4 72.0-133 3.64 20 2-Butanone (MEK) 0.625 0.833 0.888 133 142 30.0-160 6.39 24 Methylene Chloride 0.125 0.108 0.106 86.4 84.8 68.0-123 1.87 20 4-Methyl-2-pentanone (MIBK) 0.625 0.749 0.721 120 115 56.0-143 3.81 20 Methyl tert-butyl ether 0.125 0.108 0.103 86.4 82.4 66.0-132 4.74 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3634702-1 03/25/21 06:25 • (LCSD) R3634702-2 03/25/21 06:44 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
Naphthalene 0.125 0.0978 0.100 78.2 80.0 59.0-130 2.22 20 n-Propylbenzene 0.125 0.124 0.126 99.2 101 74.0-126 1.60 20 Styrene 0.125 0.108 0.114 86.4 91.2 72.0-127 5.41 20
1,1,1,2-Tetrachloroethane 0.125 0.109 0.111 87.2 88.8 74.0-129 1.82 20 1,1,2,2-Tetrachloroethane 0.125 0.139 0.135 111 108 68.0-128 2.92 20 Tetrachloroethene 0.125 0.118 0.119 94.4 95.2 70.0-136 0.844 20 Toluene 0.125 0.118 0.122 94.4 97.6 75.0-121 3.33 20
1,1,2-Trichlorotrifluoroethane 0.125 0.116 0.120 92.8 96.0 61.0-139 3.39 20 1,2,3-Trichlorobenzene 0.125 0.0768 0.0801 61.4 64.1 59.0-139 4.21 20 1,2,4-Trichlorobenzene 0.125 0.0852 0.0939 68.2 75.1 62.0-137 9.72 20 1,1,1-Trichloroethane 0.125 0.103 0.105 82.4 84.0 69.0-126 1.92 20 1,1,2-Trichloroethane 0.125 0.113 0.110 90.4 88.0 78.0-123 2.69 20 Trichloroethene 0.125 0.108 0.110 86.4 88.0 76.0-126 1.83 20 Trichlorofluoromethane 0.125 0.118 0.120 94.4 96.0 61.0-142 1.68 20 1,2,3-Trichloropropane 0.125 0.145 0.142 116 114 67.0-129 2.09 20 1,2,3-Trimethylbenzene 0.125 0.113 0.116 90.4 92.8 74.0-124 2.62 20 1,2,4-Trimethylbenzene 0.125 0.121 0.121 96.8 96.8 70.0-126 0.000 20 1,3,5-Trimethylbenzene 0.125 0.120 0.118 96.0 94.4 73.0-127 1.68 20 Vinyl chloride 0.125 0.121 0.114 96.8 91.2 63.0-134 5.96 20 Xylenes, Total 0.375 0.343 0.336 91.5 89.6 72.0-127 2.06 20 (S) Toluene-d8 104 104 75.0-131
(S) 4-Bromofluorobenzene 88.3 90.1 67.0-138
(S) 1,2-Dichloroethane-d4 117 111 70.0-130
L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/25/21 15:52 • (MS) R3634702-4 03/25/21 17:27 • (MSD) R3634702-5 03/25/21 17:46 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Acetone 0.943 U 0.991 0.905 105 96.0 1 10.0-160 9.07 40 Acrylonitrile 0.943 U 0.694 0.780 73.6 82.7 1 10.0-160 11.7 40 Benzene 0.189 U 0.0869 0.145 46.1 76.8 1 10.0-149 J3 50.0 37 Bromobenzene 0.189 U 0.148 0.176 78.3 93.6 1 10.0-156 17.8 38 Bromodichloromethane 0.189 U 0.121 0.163 63.9 86.4 1 10.0-143 29.9 37 Bromoform 0.189 U 0.163 0.184 86.4 97.6 1 10.0-146 12.2 36 Bromomethane 0.189 U 0.0516 0.0929 27.4 49.3 1 10.0-149 J3 57.2 38 n-Butylbenzene 0.189 U 0.0976 0.170 51.8 90.4 1 10.0-160 J3 54.4 40 sec-Butylbenzene 0.189 U 0.111 0.186 59.0 98.4 1 10.0-159 J3 50.0 39 tert-Butylbenzene 0.189 U 0.110 0.176 58.6 93.6 1 10.0-156 J3 46.1 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-01,02 L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/25/21 15:52 • (MS) R3634702-4 03/25/21 17:27 • (MSD) R3634702-5 03/25/21 17:46 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Carbon tetrachloride 0.189 U 0.0725 0.161 38.5 85.6 1 10.0-145 J3 76.0 37 Chlorobenzene 0.189 U 0.116 0.169 61.4 89.6 1 10.0-152 37.3 39 Chlorodibromomethane 0.189 U 0.152 0.204 80.8 108 1 10.0-146 28.8 37 Chloroethane 0.189 U 0.0323 0.0638 17.1 33.8 1 10.0-146 J3 65.6 40 Chloroform 0.189 U 0.0931 0.158 49.4 84.0 1 10.0-146 J3 51.9 37 Chloromethane 0.189 U 0.0486 0.0932 25.8 49.4 1 10.0-159 J3 63.0 37 2-Chlorotoluene 0.189 U 0.123 0.175 65.0 92.8 1 10.0-159 35.2 38 4-Chlorotoluene 0.189 U 0.134 0.183 71.1 96.8 1 10.0-155 30.6 39 1,2-Dibromo-3-Chloropropane 0.189 U 0.145 0.172 77.0 91.2 1 10.0-151 16.8 39 1,2-Dibromoethane 0.189 U 0.151 0.164 80.0 87.2 1 10.0-148 8.61 34 Dibromomethane 0.189 U 0.100 0.126 53.0 66.6 1 10.0-147 22.7 35 1,2-Dichlorobenzene 0.189 U 0.140 0.186 74.4 98.4 1 10.0-155 27.8 37 1,3-Dichlorobenzene 0.189 U 0.129 0.181 68.6 96.0 1 10.0-153 33.3 38 1,4-Dichlorobenzene 0.189 U 0.133 0.176 70.8 93.6 1 10.0-151 27.7 38 Dichlorodifluoromethane 0.189 U 0.0425 0.107 22.6 56.7 1 10.0-160 J3 86.2 35 1,1-Dichloroethane 0.189 U 0.0893 0.151 47.4 80.0 1 10.0-147 J3 51.3 37 1,2-Dichloroethane 0.189 U 0.102 0.143 54.0 76.1 1 10.0-148 33.9 35 1,1-Dichloroethene 0.189 U 0.0688 0.151 36.5 80.0 1 10.0-155 J3 74.7 37 cis-1,2-Dichloroethene 0.189 U 0.0836 0.137 44.3 72.4 1 10.0-149 J3 48.1 37 trans-1,2-Dichloroethene 0.189 U 0.0679 0.130 36.0 69.0 1 10.0-150 J3 62.9 37 1,2-Dichloropropane 0.189 U 0.116 0.170 61.7 90.4 1 10.0-148 J3 37.8 37 1,1-Dichloropropene 0.189 U 0.0691 0.140 36.6 74.0 1 10.0-153 J3 67.5 35 1,3-Dichloropropane 0.189 U 0.154 0.178 81.6 94.4 1 10.0-154 14.5 35 cis-1,3-Dichloropropene 0.189 U 0.115 0.152 61.0 80.8 1 10.0-151 28.0 37 trans-1,3-Dichloropropene 0.189 U 0.157 0.201 83.2 106 1 10.0-148 24.5 37 2,2-Dichloropropane 0.189 U 0.0738 0.148 39.1 78.2 1 10.0-138 J3 66.7 36 Di-isopropyl ether 0.189 U 0.127 0.169 67.6 89.6 1 10.0-147 28.0 36 Ethylbenzene 0.189 U 0.0961 0.166 51.0 88.0 1 10.0-160 J3 53.3 38 Hexachloro-1,3-butadiene 0.189 U 0.0811 0.164 43.0 87.2 1 10.0-160 J3 67.8 40 Isopropylbenzene 0.189 U 0.0845 0.160 44.8 84.8 1 10.0-155 J3 61.7 38 p-Isopropyltoluene 0.189 U 0.105 0.175 55.5 92.8 1 10.0-160 J3 50.3 40 2-Butanone (MEK) 0.943 0.152 1.03 0.967 92.8 86.4 1 10.0-160 6.05 40 Methylene Chloride 0.189 U 0.119 0.167 63.2 88.8 1 10.0-141 33.7 37 4-Methyl-2-pentanone (MIBK) 0.943 U 1.02 1.17 109 124 1 10.0-160 13.6 35 Methyl tert-butyl ether 0.189 U 0.118 0.137 62.7 72.9 1 11.0-147 15.0 35 Naphthalene 0.189 U 0.101 0.134 53.5 70.9 1 10.0-160 27.9 36 n-Propylbenzene 0.189 U 0.115 0.192 61.0 102 1 10.0-158 J3 49.9 38 Styrene 0.189 U 0.109 0.152 57.9 80.8 1 10.0-160 33.0 40 1,1,1,2-Tetrachloroethane 0.189 U 0.124 0.167 65.6 88.8 1 10.0-149 30.1 39 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-01,02 L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/25/21 15:52 • (MS) R3634702-4 03/25/21 17:27 • (MSD) R3634702-5 03/25/21 17:46 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
1,1,2,2-Tetrachloroethane 0.189 U 0.211 0.201 112 106 1 10.0-160 5.13 35 Tetrachloroethene 0.189 U 0.0804 0.178 42.6 94.4 1 10.0-156 J3 75.5 39 Toluene 0.189 U 0.106 0.196 56.0 104 1 10.0-156 J3 60.0 38 1,1,2-Trichlorotrifluoroethane 0.189 U 0.0697 0.179 37.0 95.2 1 10.0-160 J3 88.1 36 1,2,3-Trichlorobenzene 0.189 U 0.0919 0.133 48.7 70.3 1 10.0-160 36.3 40 1,2,4-Trichlorobenzene 0.189 U 0.0950 0.138 50.4 73.2 1 10.0-160 36.9 40 1,1,1-Trichloroethane 0.189 U 0.0727 0.152 38.6 80.8 1 10.0-144 J3 70.8 35 1,1,2-Trichloroethane 0.189 U 0.152 0.196 80.8 104 1 10.0-160 25.1 35 Trichloroethene 0.189 U 0.0786 0.147 41.7 78.0 1 10.0-156 J3 60.7 38 Trichlorofluoromethane 0.189 U 0.0379 0.0837 20.1 44.4 1 10.0-160 J3 75.4 40 1,2,3-Trichloropropane 0.189 U 0.213 0.207 113 110 1 10.0-156 2.88 35 1,2,3-Trimethylbenzene 0.189 U 0.125 0.173 66.6 92.0 1 10.0-160 32.1 36 1,2,4-Trimethylbenzene 0.189 0.00347 0.118 0.167 60.6 87.0 1 10.0-160 34.9 36 1,3,5-Trimethylbenzene 0.189 U 0.111 0.172 59.1 91.2 1 10.0-160 J3 42.7 38 Vinyl chloride 0.189 U 0.0454 0.105 24.1 55.7 1 10.0-160 J3 79.2 37 Xylenes, Total 0.566 0.00173 0.282 0.481 49.6 84.8 1 10.0-160 J3 52.2 38 (S) Toluene-d8 113 126 75.0-131
(S) 4-Bromofluorobenzene 88.1 89.1 67.0-138
(S) 1,2-Dichloroethane-d4 89.1 92.3 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1329287-02 Method Blank (MB)
(MB) R3635424-3 03/26/21 14:48
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250
(S) Toluene-d8 108 75.0-131
(S) 4-Bromofluorobenzene 98.4 67.0-138
(S) 1,2-Dichloroethane-d4 91.6 70.0-130
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3635424-1 03/26/21 13:31 • (LCSD) R3635424-2 03/26/21 13:50 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg % % % % %
4-Methyl-2-pentanone (MIBK) 0.625 0.718 0.712 115 114 56.0-143 0.839 20 (S) Toluene-d8 101 101 75.0-131
(S) 4-Bromofluorobenzene 103 103 67.0-138
(S) 1,2-Dichloroethane-d4 104 102 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Semi-Volatile Organic Compounds (GC) by Method 8015 L1329287-01,02 Method Blank (MB)
(MB) R3634953-1 03/25/21 16:28
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
C12-C22 Hydrocarbons U 0.733 4.00
C22-C32 Hydrocarbons U 1.33 4.00
C32-C40 Hydrocarbons U 1.33 4.00
(S) o-Terphenyl 101 18.0-148
Laboratory Control Sample (LCS)
(LCS) R3634953-2 03/25/21 16:43
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
C22-C32 Hydrocarbons 25.0 20.4 81.6 50.0-150
C12-C22 Hydrocarbons 25.0 24.3 97.2 50.0-150
(S) o-Terphenyl 76.6 18.0-148
L1329287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329287-01 03/25/21 23:46 • (MS) R3634953-3 03/26/21 00:01 • (MSD) R3634953-4 03/26/21 00:15 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
C22-C32 Hydrocarbons 30.3 7.06 29.5 31.6 73.8 80.2 1 50.0-150 6.98 20 C12-C22 Hydrocarbons 30.3 4.18 31.4 31.0 89.5 87.6 1 50.0-150 1.21 20 (S) o-Terphenyl 73.1 67.5 18.0-148
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Abbreviations and Definitions
(dry) Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].

MDL Method Detection Limit.

MDL (dry) Method Detection Limit.

RDL Reported Detection Limit.

RDL (dry) Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
B The same analyte is found in the associated blank.

J The identification of the analyte is acceptable; the reported value is an estimate.

J3 The associated batch QC was outside the established quality control range for precision.

J4 The associated batch QC was outside the established quality control range for accuracy.

J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329287 03/29/21 11:32 808 of 1252 26 of 30 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

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ANALYTICAL REPORT
March 29, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1329291
Samples Received: 03/20/2021
Project Number: 01-LP-001
Description: Lane Partners 222 E 4th Ave
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 12:27 1 of 26 March 29, 2021
Jason Romer
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 6
SB-02 L1329291-01 6
SB-11 L1329291-02 8
Qc: Quality Control Summary 10
Volatile Organic Compounds (GC) by Method 8015 10
Volatile Organic Compounds (GC/MS) by Method 8260B 11
Semi-Volatile Organic Compounds (GC) by Method 3511/8015 22 Gl: Glossary of Terms 23
Al: Accreditations & Locations 24
Sc: Sample Chain of Custody 25
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-02 L1329291-01 GW Erin Male 03/18/21 15:50 03/20/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Volatile Organic Compounds (GC) by Method 8015 WG1639497 1 03/24/21 08:10 03/24/21 08:10 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1640339 1 03/25/21 11:18 03/25/21 11:18 BMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1640518 1 03/26/21 10:56 03/26/21 19:18 WCR Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-11 L1329291-02 GW Erin Male 03/18/21 16:10 03/20/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Volatile Organic Compounds (GC) by Method 8015 WG1639497 1 03/24/21 08:37 03/24/21 08:37 BMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1639042 1 03/23/21 19:01 03/23/21 19:01 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1639681 1 03/25/21 02:57 03/25/21 02:57 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1640518 1 03/26/21 10:56 03/26/21 18:17 WCR Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report]
Jared Starkey
Project Manager
Sample Delivery Group (SDG) Narrative
No extra volume received to perform Matrix Spike samples.

Lab Sample ID Project Sample ID Method
L1329291-01 SB-02 3511/8015
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 12:27 4 of 26 Jason Romer
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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DETECTION SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Client ID Lab Sample ID Analyte ug/l ug/l ug/l date / time SB-02 L1329291-01 Benzene 0.111 J J3 J6 0.0941 0.500 1 03/25/2021 11:18 WG1640339 SB-02 L1329291-01 Chloroform 3.67 J3 J6 0.111 0.500 1 03/25/2021 11:18 WG1640339 SB-11 L1329291-02 Chloroform 0.571 0.111 0.500 1 03/23/2021 19:01 WG1639042 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch
Client ID Lab Sample ID Analyte ug/l ug/l ug/l date / time SB-02 L1329291-01 C22-C32 Hydrocarbons 95.2 J 33.0 100 1 03/26/2021 19:18 WG1640518 SB-02 L1329291-01 C32-C40 Hydrocarbons 150 33.0 100 1 03/26/2021 19:18 WG1640518 SB-11 L1329291-02 C12-C22 Hydrocarbons 353 33.0 100 1 03/26/2021 18:17 WG1640518 SB-11 L1329291-02 C22-C32 Hydrocarbons 180 33.0 100 1 03/26/2021 18:17 WG1640518 SB-11 L1329291-02 C32-C40 Hydrocarbons 187 33.0 100 1 03/26/2021 18:17 WG1640518 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 814 of 1252 5 of 26 SAMPLE RESULTS - 01
L1329291
SB-02
Collected date/time: 03/18/21 15:50
Volatile Organic Compounds (GC) by Method 8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPHG C5 - C12 U 30.4 100 1 03/24/2021 08:10 WG1639497
(S)
a,a,a-Trifluorotoluene(FID) 115 78.0-120 03/24/2021 08:10 WG1639497 Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 25.0 1 03/25/2021 11:18 WG1640339
Acrylonitrile U J3 0.671 5.00 1 03/25/2021 11:18 WG1640339 Benzene 0.111 J J3 J6 0.0941 0.500 1 03/25/2021 11:18 WG1640339 Bromobenzene U J3 0.118 0.500 1 03/25/2021 11:18 WG1640339 Bromodichloromethane U J3 0.136 0.500 1 03/25/2021 11:18 WG1640339 Bromochloromethane U J3 J6 0.128 0.500 1 03/25/2021 11:18 WG1640339 Bromoform U J3 0.129 0.500 1 03/25/2021 11:18 WG1640339 Bromomethane U J3 J6 0.605 2.50 1 03/25/2021 11:18 WG1640339 n-Butylbenzene U J3 J6 0.157 0.500 1 03/25/2021 11:18 WG1640339 sec-Butylbenzene U J3 J6 0.125 0.500 1 03/25/2021 11:18 WG1640339 tert-Butylbenzene U J3 J6 0.127 0.500 1 03/25/2021 11:18 WG1640339 Carbon disulfide U J3 J6 0.0962 0.500 1 03/25/2021 11:18 WG1640339 Carbon tetrachloride U J3 J6 0.128 0.500 1 03/25/2021 11:18 WG1640339 Chlorobenzene U J3 J6 0.117 0.500 1 03/25/2021 11:18 WG1640339 Chlorodibromomethane U J3 0.140 0.500 1 03/25/2021 11:18 WG1640339 Chloroethane U J3 J6 0.192 2.50 1 03/25/2021 11:18 WG1640339 Chloroform 3.67 J3 J6 0.111 0.500 1 03/25/2021 11:18 WG1640339 Chloromethane U J3 J6 0.960 1.25 1 03/25/2021 11:18 WG1640339 2-Chlorotoluene U J3 J6 0.106 0.500 1 03/25/2021 11:18 WG1640339 4-Chlorotoluene U J3 J6 0.114 0.500 1 03/25/2021 11:18 WG1640339 1,2-Dibromo-3-Chloropropane U J3 0.276 2.50 1 03/25/2021 11:18 WG1640339 1,2-Dibromoethane U J3 0.126 0.500 1 03/25/2021 11:18 WG1640339 Dibromomethane U J3 0.122 0.500 1 03/25/2021 11:18 WG1640339 1,2-Dichlorobenzene U J3 0.107 0.500 1 03/25/2021 11:18 WG1640339 1,3-Dichlorobenzene U J3 J6 0.299 0.500 1 03/25/2021 11:18 WG1640339 1,4-Dichlorobenzene U J3 J6 0.120 0.500 1 03/25/2021 11:18 WG1640339 Dichlorodifluoromethane U J3 J6 0.374 2.50 1 03/25/2021 11:18 WG1640339 1,1-Dichloroethane U J3 J6 0.100 0.500 1 03/25/2021 11:18 WG1640339 1,2-Dichloroethane U J3 0.0819 0.500 1 03/25/2021 11:18 WG1640339 1,1-Dichloroethene U J3 J6 0.188 0.500 1 03/25/2021 11:18 WG1640339 cis-1,2-Dichloroethene U J3 0.126 0.500 1 03/25/2021 11:18 WG1640339 trans-1,2-Dichloroethene U J3 J6 0.149 0.500 1 03/25/2021 11:18 WG1640339 1,2-Dichloropropane U J3 J6 0.149 0.500 1 03/25/2021 11:18 WG1640339 1,1-Dichloropropene U J3 J6 0.142 0.500 1 03/25/2021 11:18 WG1640339 1,3-Dichloropropane U J3 0.109 1.00 1 03/25/2021 11:18 WG1640339 cis-1,3-Dichloropropene U J3 J6 0.111 0.500 1 03/25/2021 11:18 WG1640339 trans-1,3-Dichloropropene U J3 0.118 0.500 1 03/25/2021 11:18 WG1640339 trans-1,4-Dichloro-2-butene U 0.467 5.00 1 03/25/2021 11:18 WG1640339 2,2-Dichloropropane U J3 J6 0.161 0.500 1 03/25/2021 11:18 WG1640339 Di-isopropyl ether U J3 0.105 0.500 1 03/25/2021 11:18 WG1640339 Ethylbenzene U J3 J6 0.137 0.500 1 03/25/2021 11:18 WG1640339 Hexachloro-1,3-butadiene U J3 J6 0.337 1.00 1 03/25/2021 11:18 WG1640339 2-Hexanone U J3 0.787 5.00 1 03/25/2021 11:18 WG1640339 n-Hexane U J3 0.749 5.00 1 03/25/2021 11:18 WG1640339
Iodomethane U J3 0.554 5.00 1 03/25/2021 11:18 WG1640339 Isopropylbenzene U J3 J6 0.105 0.500 1 03/25/2021 11:18 WG1640339 p-Isopropyltoluene U J3 J6 0.120 0.500 1 03/25/2021 11:18 WG1640339 2-Butanone (MEK) U 1.19 5.00 1 03/25/2021 11:18 WG1640339 Methylene Chloride U J3 0.430 2.50 1 03/25/2021 11:18 WG1640339 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1329291
SB-02
Collected date/time: 03/18/21 15:50
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
4-Methyl-2-pentanone (MIBK) U J3 0.478 5.00 1 03/25/2021 11:18 WG1640339 Methyl tert-butyl ether U J3 0.101 0.500 1 03/25/2021 11:18 WG1640339 Naphthalene U J3 0.174 2.50 1 03/25/2021 11:18 WG1640339 n-Propylbenzene U J3 J6 0.0993 0.500 1 03/25/2021 11:18 WG1640339 Styrene U J3 J6 0.118 0.500 1 03/25/2021 11:18 WG1640339 1,1,1,2-Tetrachloroethane U J3 J6 0.147 0.500 1 03/25/2021 11:18 WG1640339 1,1,2,2-Tetrachloroethane U J3 0.133 0.500 1 03/25/2021 11:18 WG1640339 1,1,2-Trichlorotrifluoroethane U J3 J6 0.180 0.500 1 03/25/2021 11:18 WG1640339 Tetrachloroethene U J3 0.300 0.500 1 03/25/2021 11:18 WG1640339 Toluene U J3 J6 0.278 0.500 1 03/25/2021 11:18 WG1640339 1,2,3-Trichlorobenzene U J3 0.164 0.500 1 03/25/2021 11:18 WG1640339 1,2,4-Trichlorobenzene U J3 0.481 1.00 1 03/25/2021 11:18 WG1640339 1,1,1-Trichloroethane U J3 J6 0.149 0.500 1 03/25/2021 11:18 WG1640339 1,1,2-Trichloroethane U J3 0.158 0.500 1 03/25/2021 11:18 WG1640339 Trichloroethene U J3 0.190 0.500 1 03/25/2021 11:18 WG1640339 Trichlorofluoromethane U J3 J6 0.160 2.50 1 03/25/2021 11:18 WG1640339 1,2,3-Trichloropropane U J3 0.237 2.50 1 03/25/2021 11:18 WG1640339 1,2,4-Trimethylbenzene U J3 J6 0.322 0.500 1 03/25/2021 11:18 WG1640339 1,2,3-Trimethylbenzene U J3 J4 0.104 0.500 1 03/25/2021 11:18 WG1640339 1,3,5-Trimethylbenzene U J3 J6 0.104 0.500 1 03/25/2021 11:18 WG1640339 Vinyl acetate U J3 0.692 5.00 1 03/25/2021 11:18 WG1640339 Vinyl chloride U J3 J6 0.234 0.500 1 03/25/2021 11:18 WG1640339 Xylenes, Total U J3 J6 0.174 1.50 1 03/25/2021 11:18 WG1640339 (S) Toluene-d8 96.3 80.0-120 03/25/2021 11:18 WG1640339 (S) 4-Bromofluorobenzene 89.9 77.0-126 03/25/2021 11:18 WG1640339 (S) 1,2-Dichloroethane-d4 109 70.0-130 03/25/2021 11:18 WG1640339 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
C12-C22 Hydrocarbons U 33.0 100 1 03/26/2021 19:18 WG1640518 C22-C32 Hydrocarbons 95.2 J 33.0 100 1 03/26/2021 19:18 WG1640518 C32-C40 Hydrocarbons 150 33.0 100 1 03/26/2021 19:18 WG1640518 (S) o-Terphenyl 79.5 52.0-156 03/26/2021 19:18 WG1640518 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 816 of 1252 7 of 26 SAMPLE RESULTS - 02
L1329291
SB-11
Collected date/time: 03/18/21 16:10
Volatile Organic Compounds (GC) by Method 8015
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
TPHG C5 - C12 U 30.4 100 1 03/24/2021 08:37 WG1639497
(S)
a,a,a-Trifluorotoluene(FID) 115 78.0-120 03/24/2021 08:37 WG1639497 Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Acetone U 11.3 25.0 1 03/23/2021 19:01 WG1639042
Acrylonitrile U 0.671 5.00 1 03/23/2021 19:01 WG1639042 Benzene U 0.0941 0.500 1 03/23/2021 19:01 WG1639042
Bromobenzene U 0.118 0.500 1 03/23/2021 19:01 WG1639042 Bromodichloromethane U 0.136 0.500 1 03/23/2021 19:01 WG1639042 Bromochloromethane U 0.128 0.500 1 03/23/2021 19:01 WG1639042 Bromoform U 0.129 0.500 1 03/23/2021 19:01 WG1639042
Bromomethane U 0.605 2.50 1 03/23/2021 19:01 WG1639042
n-Butylbenzene U 0.157 0.500 1 03/23/2021 19:01 WG1639042 sec-Butylbenzene U 0.125 0.500 1 03/23/2021 19:01 WG1639042 tert-Butylbenzene U 0.127 0.500 1 03/23/2021 19:01 WG1639042 Carbon disulfide U 0.0962 0.500 1 03/23/2021 19:01 WG1639042 Carbon tetrachloride U 0.128 0.500 1 03/23/2021 19:01 WG1639042 Chlorobenzene U 0.117 0.500 1 03/23/2021 19:01 WG1639042 Chlorodibromomethane U 0.140 0.500 1 03/23/2021 19:01 WG1639042 Chloroethane U 0.192 2.50 1 03/23/2021 19:01 WG1639042
Chloroform 0.571 0.111 0.500 1 03/23/2021 19:01 WG1639042 Chloromethane U 0.960 1.25 1 03/23/2021 19:01 WG1639042 2-Chlorotoluene U 0.106 0.500 1 03/23/2021 19:01 WG1639042 4-Chlorotoluene U 0.114 0.500 1 03/23/2021 19:01 WG1639042 1,2-Dibromo-3-Chloropropane U 0.276 2.50 1 03/23/2021 19:01 WG1639042 1,2-Dibromoethane U 0.126 0.500 1 03/23/2021 19:01 WG1639042 Dibromomethane U 0.122 0.500 1 03/23/2021 19:01 WG1639042 1,2-Dichlorobenzene U 0.107 0.500 1 03/23/2021 19:01 WG1639042 1,3-Dichlorobenzene U 0.299 0.500 1 03/23/2021 19:01 WG1639042 1,4-Dichlorobenzene U 0.120 0.500 1 03/23/2021 19:01 WG1639042 Dichlorodifluoromethane U 0.374 2.50 1 03/23/2021 19:01 WG1639042 1,1-Dichloroethane U 0.100 0.500 1 03/23/2021 19:01 WG1639042 1,2-Dichloroethane U 0.0819 0.500 1 03/23/2021 19:01 WG1639042 1,1-Dichloroethene U 0.188 0.500 1 03/23/2021 19:01 WG1639042 cis-1,2-Dichloroethene U 0.126 0.500 1 03/23/2021 19:01 WG1639042 trans-1,2-Dichloroethene U 0.149 0.500 1 03/23/2021 19:01 WG1639042 1,2-Dichloropropane U 0.149 0.500 1 03/23/2021 19:01 WG1639042 1,1-Dichloropropene U 0.142 0.500 1 03/23/2021 19:01 WG1639042 1,3-Dichloropropane U 0.109 1.00 1 03/23/2021 19:01 WG1639042 cis-1,3-Dichloropropene U 0.111 0.500 1 03/23/2021 19:01 WG1639042 trans-1,3-Dichloropropene U 0.118 0.500 1 03/23/2021 19:01 WG1639042 trans-1,4-Dichloro-2-butene U 0.467 5.00 1 03/23/2021 19:01 WG1639042 2,2-Dichloropropane U 0.161 0.500 1 03/23/2021 19:01 WG1639042 Di-isopropyl ether U 0.105 0.500 1 03/23/2021 19:01 WG1639042 Ethylbenzene U 0.137 0.500 1 03/23/2021 19:01 WG1639042 Hexachloro-1,3-butadiene U 0.337 1.00 1 03/23/2021 19:01 WG1639042 2-Hexanone U 0.787 5.00 1 03/23/2021 19:01 WG1639042
n-Hexane U 0.749 5.00 1 03/23/2021 19:01 WG1639042
Iodomethane U 0.554 5.00 1 03/23/2021 19:01 WG1639042
Isopropylbenzene U 0.105 0.500 1 03/23/2021 19:01 WG1639042 p-Isopropyltoluene U 0.120 0.500 1 03/23/2021 19:01 WG1639042 2-Butanone (MEK) U 1.19 5.00 1 03/23/2021 19:01 WG1639042 Methylene Chloride U 0.430 2.50 1 03/23/2021 19:01 WG1639042 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 817 of 1252 8 of 26 SAMPLE RESULTS - 02
L1329291
SB-11
Collected date/time: 03/18/21 16:10
Volatile Organic Compounds (GC/MS) by Method 8260B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
4-Methyl-2-pentanone (MIBK) U 0.478 5.00 1 03/23/2021 19:01 WG1639042 Methyl tert-butyl ether U 0.101 0.500 1 03/23/2021 19:01 WG1639042 Naphthalene U 0.174 2.50 1 03/23/2021 19:01 WG1639042
n-Propylbenzene U 0.0993 0.500 1 03/23/2021 19:01 WG1639042 Styrene U 0.118 0.500 1 03/23/2021 19:01 WG1639042
1,1,1,2-Tetrachloroethane U 0.147 0.500 1 03/23/2021 19:01 WG1639042 1,1,2,2-Tetrachloroethane U 0.133 0.500 1 03/23/2021 19:01 WG1639042 1,1,2-Trichlorotrifluoroethane U 0.180 0.500 1 03/23/2021 19:01 WG1639042 Tetrachloroethene U 0.300 0.500 1 03/23/2021 19:01 WG1639042 Toluene U 0.278 0.500 1 03/25/2021 02:57 WG1639681
1,2,3-Trichlorobenzene U 0.164 0.500 1 03/23/2021 19:01 WG1639042 1,2,4-Trichlorobenzene U 0.481 1.00 1 03/23/2021 19:01 WG1639042 1,1,1-Trichloroethane U 0.149 0.500 1 03/23/2021 19:01 WG1639042 1,1,2-Trichloroethane U 0.158 0.500 1 03/23/2021 19:01 WG1639042 Trichloroethene U 0.190 0.500 1 03/23/2021 19:01 WG1639042 Trichlorofluoromethane U 0.160 2.50 1 03/23/2021 19:01 WG1639042 1,2,3-Trichloropropane U 0.237 2.50 1 03/23/2021 19:01 WG1639042 1,2,4-Trimethylbenzene U 0.322 0.500 1 03/23/2021 19:01 WG1639042 1,2,3-Trimethylbenzene U 0.104 0.500 1 03/23/2021 19:01 WG1639042 1,3,5-Trimethylbenzene U 0.104 0.500 1 03/23/2021 19:01 WG1639042 Vinyl acetate U 0.692 5.00 1 03/23/2021 19:01 WG1639042 Vinyl chloride U 0.234 0.500 1 03/23/2021 19:01 WG1639042 Xylenes, Total U 0.174 1.50 1 03/23/2021 19:01 WG1639042 (S) Toluene-d8 101 80.0-120 03/23/2021 19:01 WG1639042
(S) Toluene-d8 106 80.0-120 03/25/2021 02:57 WG1639681
(S) 4-Bromofluorobenzene 101 77.0-126 03/23/2021 19:01 WG1639042 (S) 4-Bromofluorobenzene 95.6 77.0-126 03/25/2021 02:57 WG1639681 (S) 1,2-Dichloroethane-d4 103 70.0-130 03/23/2021 19:01 WG1639042 (S) 1,2-Dichloroethane-d4 116 70.0-130 03/25/2021 02:57 WG1639681 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
C12-C22 Hydrocarbons 353 33.0 100 1 03/26/2021 18:17 WG1640518 C22-C32 Hydrocarbons 180 33.0 100 1 03/26/2021 18:17 WG1640518 C32-C40 Hydrocarbons 187 33.0 100 1 03/26/2021 18:17 WG1640518 (S) o-Terphenyl 98.9 52.0-156 03/26/2021 18:17 WG1640518 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 818 of 1252 9 of 26 WG1639497 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC) by Method 8015 L1329291-01,02 Method Blank (MB)
(MB) R3634812-2 03/24/21 05:04
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
TPHG C5 - C12 U 30.4 100
(S)
a,a,a-Trifluorotoluene(FID) 115 78.0-120
Laboratory Control Sample (LCS)
(LCS) R3634812-1 03/24/21 03:47
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
TPHG C5 - C12 5500 5070 92.2 71.0-127
(S)
a,a,a-Trifluorotoluene(FID) 84.5 78.0-120
L1329291-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329291-01 03/24/21 08:10 • (MS) R3634812-3 03/24/21 15:41 • (MSD) R3634812-4 03/24/21 16:07 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l % % % % %
TPHG C5 - C12 5500 U 5070 4920 92.2 89.5 1 10.0-158 3.00 20 (S)
a,a,a-Trifluorotoluene(FID) 85.0 86.3 78.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 819 of 1252 10 of 26 WG1639042 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-02 Method Blank (MB)
(MB) R3633859-2 03/23/21 11:40
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 25.0
Acrylonitrile U 0.671 5.00
Benzene U 0.0941 0.500
Bromobenzene U 0.118 0.500
Bromodichloromethane U 0.136 0.500
Bromochloromethane U 0.128 0.500
Bromoform U 0.129 0.500
Bromomethane U 0.605 2.50
n-Butylbenzene U 0.157 0.500
sec-Butylbenzene U 0.125 0.500
tert-Butylbenzene U 0.127 0.500
Carbon disulfide U 0.0962 0.500
Carbon tetrachloride U 0.128 0.500
Chlorobenzene U 0.117 0.500
Chlorodibromomethane U 0.140 0.500
Chloroethane U 0.192 2.50
Chloroform U 0.111 0.500
Chloromethane U 0.960 1.25
2-Chlorotoluene U 0.106 0.500
4-Chlorotoluene U 0.114 0.500
1,2-Dibromo-3-Chloropropane U 0.276 2.50
1,2-Dibromoethane U 0.126 0.500
Dibromomethane U 0.122 0.500
1,2-Dichlorobenzene U 0.107 0.500
1,3-Dichlorobenzene U 0.299 0.500
1,4-Dichlorobenzene U 0.120 0.500
Dichlorodifluoromethane U 0.374 2.50
1,1-Dichloroethane U 0.100 0.500
1,2-Dichloroethane U 0.0819 0.500
1,1-Dichloroethene U 0.188 0.500
cis-1,2-Dichloroethene U 0.126 0.500
trans-1,2-Dichloroethene U 0.149 0.500
1,2-Dichloropropane U 0.149 0.500
1,1-Dichloropropene U 0.142 0.500
1,3-Dichloropropane U 0.109 1.00
cis-1,3-Dichloropropene U 0.111 0.500
trans-1,3-Dichloropropene U 0.118 0.500
trans-1,4-Dichloro-2-butene U 0.467 5.00
2,2-Dichloropropane U 0.161 0.500
Di-isopropyl ether U 0.105 0.500
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 820 of 1252 11 of 26 WG1639042 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-02 Method Blank (MB)
(MB) R3633859-2 03/23/21 11:40
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Ethylbenzene U 0.137 0.500
Hexachloro-1,3-butadiene U 0.337 1.00
2-Hexanone U 0.787 5.00
n-Hexane U 0.749 5.00
Iodomethane U 0.554 5.00
Isopropylbenzene U 0.105 0.500
p-Isopropyltoluene U 0.120 0.500
2-Butanone (MEK) U 1.19 5.00
Methylene Chloride U 0.430 2.50
4-Methyl-2-pentanone (MIBK) U 0.478 5.00
Methyl tert-butyl ether U 0.101 0.500
Naphthalene U 0.174 2.50
n-Propylbenzene U 0.0993 0.500
Styrene U 0.118 0.500
1,1,1,2-Tetrachloroethane U 0.147 0.500
1,1,2,2-Tetrachloroethane U 0.133 0.500
1,1,2-Trichlorotrifluoroethane U 0.180 0.500
Tetrachloroethene U 0.300 0.500
1,2,3-Trichlorobenzene U 0.164 0.500
1,2,4-Trichlorobenzene U 0.481 1.00
1,1,1-Trichloroethane U 0.149 0.500
1,1,2-Trichloroethane U 0.158 0.500
Trichloroethene U 0.190 0.500
Trichlorofluoromethane U 0.160 2.50
1,2,3-Trichloropropane U 0.237 2.50
1,2,4-Trimethylbenzene U 0.322 0.500
1,2,3-Trimethylbenzene U 0.104 0.500
1,3,5-Trimethylbenzene U 0.104 0.500
Vinyl acetate U 0.692 5.00
Vinyl chloride U 0.234 0.500
Xylenes, Total U 0.174 1.50
(S) Toluene-d8 102 80.0-120
(S) 4-Bromofluorobenzene 97.9 77.0-126
(S) 1,2-Dichloroethane-d4 103 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 821 of 1252 12 of 26 WG1639042 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-02 Laboratory Control Sample (LCS)
(LCS) R3633859-1 03/23/21 10:59
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Acetone 25.0 21.5 86.0 19.0-160
Acrylonitrile 25.0 27.7 111 55.0-149
Benzene 5.00 4.71 94.2 70.0-123
Bromobenzene 5.00 4.41 88.2 73.0-121
Bromodichloromethane 5.00 5.19 104 75.0-120
Bromochloromethane 5.00 5.22 104 76.0-122
Bromoform 5.00 4.84 96.8 68.0-132
Bromomethane 5.00 6.68 134 10.0-160
n-Butylbenzene 5.00 5.81 116 73.0-125
sec-Butylbenzene 5.00 4.56 91.2 75.0-125
tert-Butylbenzene 5.00 4.17 83.4 76.0-124
Carbon disulfide 5.00 4.96 99.2 61.0-128
Carbon tetrachloride 5.00 4.38 87.6 68.0-126
Chlorobenzene 5.00 4.75 95.0 80.0-121
Chlorodibromomethane 5.00 4.69 93.8 77.0-125
Chloroethane 5.00 6.87 137 47.0-150
Chloroform 5.00 5.13 103 73.0-120
Chloromethane 5.00 5.48 110 41.0-142
2-Chlorotoluene 5.00 4.24 84.8 76.0-123
4-Chlorotoluene 5.00 4.34 86.8 75.0-122
1,2-Dibromo-3-Chloropropane 5.00 5.04 101 58.0-134
1,2-Dibromoethane 5.00 4.93 98.6 80.0-122
Dibromomethane 5.00 5.16 103 80.0-120
1,2-Dichlorobenzene 5.00 4.78 95.6 79.0-121
1,3-Dichlorobenzene 5.00 4.89 97.8 79.0-120
1,4-Dichlorobenzene 5.00 5.10 102 79.0-120
Dichlorodifluoromethane 5.00 4.82 96.4 51.0-149
1,1-Dichloroethane 5.00 5.26 105 70.0-126
1,2-Dichloroethane 5.00 4.91 98.2 70.0-128
1,1-Dichloroethene 5.00 5.00 100 71.0-124
cis-1,2-Dichloroethene 5.00 5.07 101 73.0-120
trans-1,2-Dichloroethene 5.00 5.27 105 73.0-120
1,2-Dichloropropane 5.00 5.07 101 77.0-125
1,1-Dichloropropene 5.00 4.96 99.2 74.0-126
1,3-Dichloropropane 5.00 4.91 98.2 80.0-120
cis-1,3-Dichloropropene 5.00 4.93 98.6 80.0-123
trans-1,3-Dichloropropene 5.00 4.74 94.8 78.0-124
trans-1,4-Dichloro-2-butene 5.00 4.18 83.6 33.0-144
2,2-Dichloropropane 5.00 5.59 112 58.0-130
Di-isopropyl ether 5.00 5.10 102 58.0-138
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 822 of 1252 13 of 26 WG1639042 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-02 Laboratory Control Sample (LCS)
(LCS) R3633859-1 03/23/21 10:59
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Ethylbenzene 5.00 4.79 95.8 79.0-123
Hexachloro-1,3-butadiene 5.00 5.01 100 54.0-138
2-Hexanone 25.0 26.6 106 67.0-149
n-Hexane 5.00 5.24 105 57.0-133
Iodomethane 25.0 25.2 101 33.0-147
Isopropylbenzene 5.00 5.36 107 76.0-127
p-Isopropyltoluene 5.00 4.93 98.6 76.0-125
2-Butanone (MEK) 25.0 25.4 102 44.0-160
Methylene Chloride 5.00 4.97 99.4 67.0-120
4-Methyl-2-pentanone (MIBK) 25.0 26.2 105 68.0-142
Methyl tert-butyl ether 5.00 5.14 103 68.0-125
Naphthalene 5.00 4.68 93.6 54.0-135
n-Propylbenzene 5.00 4.58 91.6 77.0-124
Styrene 5.00 4.87 97.4 73.0-130
1,1,1,2-Tetrachloroethane 5.00 4.95 99.0 75.0-125
1,1,2,2-Tetrachloroethane 5.00 4.50 90.0 65.0-130
1,1,2-Trichlorotrifluoroethane 5.00 4.41 88.2 69.0-132
Tetrachloroethene 5.00 4.84 96.8 72.0-132
1,2,3-Trichlorobenzene 5.00 4.97 99.4 50.0-138
1,2,4-Trichlorobenzene 5.00 4.56 91.2 57.0-137
1,1,1-Trichloroethane 5.00 4.95 99.0 73.0-124
1,1,2-Trichloroethane 5.00 4.98 99.6 80.0-120
Trichloroethene 5.00 4.99 99.8 78.0-124
Trichlorofluoromethane 5.00 5.25 105 59.0-147
1,2,3-Trichloropropane 5.00 4.35 87.0 73.0-130
1,2,4-Trimethylbenzene 5.00 4.40 88.0 76.0-121
1,2,3-Trimethylbenzene 5.00 4.97 99.4 77.0-120
1,3,5-Trimethylbenzene 5.00 4.44 88.8 76.0-122
Vinyl acetate 25.0 32.7 131 11.0-160
Vinyl chloride 5.00 4.51 90.2 67.0-131
Xylenes, Total 15.0 14.9 99.3 79.0-123
(S) Toluene-d8 98.8 80.0-120
(S) 4-Bromofluorobenzene 103 77.0-126
(S) 1,2-Dichloroethane-d4 106 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 823 of 1252 14 of 26 WG1639681 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-02 Method Blank (MB)
(MB) R3634671-3 03/24/21 18:57
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Toluene U 0.278 0.500
(S) Toluene-d8 106 80.0-120
(S) 4-Bromofluorobenzene 90.7 77.0-126
(S) 1,2-Dichloroethane-d4 114 70.0-130
Laboratory Control Sample (LCS)
(LCS) R3634671-1 03/24/21 17:55
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Toluene 5.00 4.87 97.4 79.0-120
(S) Toluene-d8 103 80.0-120
(S) 4-Bromofluorobenzene 94.1 77.0-126
(S) 1,2-Dichloroethane-d4 113 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 824 of 1252 15 of 26 WG1640339 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-01 Method Blank (MB)
(MB) R3634767-3 03/25/21 09:45
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Acetone U 11.3 25.0
Acrylonitrile U 0.671 5.00
Benzene U 0.0941 0.500
Bromobenzene U 0.118 0.500
Bromodichloromethane U 0.136 0.500
Bromochloromethane U 0.128 0.500
Bromoform U 0.129 0.500
Bromomethane U 0.605 2.50
n-Butylbenzene U 0.157 0.500
sec-Butylbenzene U 0.125 0.500
tert-Butylbenzene U 0.127 0.500
Carbon disulfide U 0.0962 0.500
Carbon tetrachloride U 0.128 0.500
Chlorobenzene U 0.117 0.500
Chlorodibromomethane U 0.140 0.500
Chloroethane U 0.192 2.50
Chloroform U 0.111 0.500
Chloromethane U 0.960 1.25
2-Chlorotoluene U 0.106 0.500
4-Chlorotoluene U 0.114 0.500
1,2-Dibromo-3-Chloropropane U 0.276 2.50
1,2-Dibromoethane U 0.126 0.500
Dibromomethane U 0.122 0.500
1,2-Dichlorobenzene U 0.107 0.500
1,3-Dichlorobenzene U 0.299 0.500
1,4-Dichlorobenzene U 0.120 0.500
trans-1,4-Dichloro-2-butene U 0.467 5.00
Dichlorodifluoromethane U 0.374 2.50
1,1-Dichloroethane U 0.100 0.500
1,2-Dichloroethane U 0.0819 0.500
1,1-Dichloroethene U 0.188 0.500
cis-1,2-Dichloroethene U 0.126 0.500
trans-1,2-Dichloroethene U 0.149 0.500
1,2-Dichloropropane U 0.149 0.500
1,1-Dichloropropene U 0.142 0.500
1,3-Dichloropropane U 0.109 1.00
cis-1,3-Dichloropropene U 0.111 0.500
trans-1,3-Dichloropropene U 0.118 0.500
2,2-Dichloropropane U 0.161 0.500
Di-isopropyl ether U 0.105 0.500
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 825 of 1252 16 of 26 WG1640339 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-01 Method Blank (MB)
(MB) R3634767-3 03/25/21 09:45
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Ethylbenzene U 0.137 0.500
Hexachloro-1,3-butadiene U 0.337 1.00
2-Hexanone U 0.787 5.00
n-Hexane U 0.749 5.00
Iodomethane U 0.554 5.00
Isopropylbenzene U 0.105 0.500
p-Isopropyltoluene U 0.120 0.500
2-Butanone (MEK) U 1.19 5.00
Methylene Chloride U 0.430 2.50
4-Methyl-2-pentanone (MIBK) U 0.478 5.00
Methyl tert-butyl ether U 0.101 0.500
Naphthalene U 0.174 2.50
n-Propylbenzene U 0.0993 0.500
Styrene U 0.118 0.500
1,1,1,2-Tetrachloroethane U 0.147 0.500
1,1,2,2-Tetrachloroethane U 0.133 0.500
Tetrachloroethene U 0.300 0.500
Toluene U 0.278 0.500
1,1,2-Trichlorotrifluoroethane U 0.180 0.500
1,2,3-Trichlorobenzene U 0.164 0.500
1,2,4-Trichlorobenzene U 0.481 1.00
1,1,1-Trichloroethane U 0.149 0.500
1,1,2-Trichloroethane U 0.158 0.500
Trichloroethene U 0.190 0.500
Trichlorofluoromethane U 0.160 2.50
1,2,3-Trichloropropane U 0.237 2.50
1,2,3-Trimethylbenzene U 0.104 0.500
1,2,4-Trimethylbenzene U 0.322 0.500
1,3,5-Trimethylbenzene U 0.104 0.500
Vinyl acetate U 0.692 5.00
Vinyl chloride U 0.234 0.500
Xylenes, Total U 0.174 1.50
(S) Toluene-d8 96.1 80.0-120
(S) 4-Bromofluorobenzene 90.3 77.0-126
(S) 1,2-Dichloroethane-d4 108 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 826 of 1252 17 of 26 WG1640339 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-01 Laboratory Control Sample (LCS)
(LCS) R3634767-1 03/25/21 08:11
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Acetone 25.0 21.6 86.4 19.0-160
Acrylonitrile 25.0 26.9 108 55.0-149
Benzene 5.00 4.50 90.0 70.0-123
Bromobenzene 5.00 5.03 101 73.0-121
Bromodichloromethane 5.00 4.55 91.0 75.0-120
Bromochloromethane 5.00 4.68 93.6 76.0-122
Bromoform 5.00 3.67 73.4 68.0-132
Bromomethane 5.00 4.35 87.0 10.0-160
n-Butylbenzene 5.00 4.95 99.0 73.0-125
sec-Butylbenzene 5.00 5.16 103 75.0-125
tert-Butylbenzene 5.00 4.95 99.0 76.0-124
Carbon disulfide 5.00 5.02 100 61.0-128
Carbon tetrachloride 5.00 4.46 89.2 68.0-126
Chlorobenzene 5.00 4.41 88.2 80.0-121
Chlorodibromomethane 5.00 4.71 94.2 77.0-125
Chloroethane 5.00 5.15 103 47.0-150
Chloroform 5.00 5.11 102 73.0-120
Chloromethane 5.00 5.60 112 41.0-142
2-Chlorotoluene 5.00 5.13 103 76.0-123
4-Chlorotoluene 5.00 4.86 97.2 75.0-122
1,2-Dibromo-3-Chloropropane 5.00 3.26 65.2 58.0-134
1,2-Dibromoethane 5.00 4.34 86.8 80.0-122
Dibromomethane 5.00 4.71 94.2 80.0-120
1,2-Dichlorobenzene 5.00 4.98 99.6 79.0-121
1,3-Dichlorobenzene 5.00 4.78 95.6 79.0-120
1,4-Dichlorobenzene 5.00 4.87 97.4 79.0-120
trans-1,4-Dichloro-2-butene 5.00 4.52 90.4 33.0-144
Dichlorodifluoromethane 5.00 4.40 88.0 51.0-149
1,1-Dichloroethane 5.00 4.75 95.0 70.0-126
1,2-Dichloroethane 5.00 5.56 111 70.0-128
1,1-Dichloroethene 5.00 4.64 92.8 71.0-124
cis-1,2-Dichloroethene 5.00 4.28 85.6 73.0-120
trans-1,2-Dichloroethene 5.00 4.85 97.0 73.0-120
1,2-Dichloropropane 5.00 5.31 106 77.0-125
1,1-Dichloropropene 5.00 4.91 98.2 74.0-126
1,3-Dichloropropane 5.00 4.61 92.2 80.0-120
cis-1,3-Dichloropropene 5.00 4.83 96.6 80.0-123
trans-1,3-Dichloropropene 5.00 4.49 89.8 78.0-124
2,2-Dichloropropane 5.00 5.85 117 58.0-130
Di-isopropyl ether 5.00 5.36 107 58.0-138
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-01 Laboratory Control Sample (LCS)
(LCS) R3634767-1 03/25/21 08:11
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Ethylbenzene 5.00 4.37 87.4 79.0-123
Hexachloro-1,3-butadiene 5.00 4.46 89.2 54.0-138
2-Hexanone 25.0 20.7 82.8 67.0-149
n-Hexane 5.00 6.24 125 57.0-133
Iodomethane 25.0 22.3 89.2 33.0-147
Isopropylbenzene 5.00 4.36 87.2 76.0-127
p-Isopropyltoluene 5.00 5.03 101 76.0-125
2-Butanone (MEK) 25.0 22.9 91.6 44.0-160
Methylene Chloride 5.00 4.82 96.4 67.0-120
4-Methyl-2-pentanone (MIBK) 25.0 24.6 98.4 68.0-142
Methyl tert-butyl ether 5.00 4.51 90.2 68.0-125
Naphthalene 5.00 4.37 87.4 54.0-135
n-Propylbenzene 5.00 4.80 96.0 77.0-124
Styrene 5.00 4.45 89.0 73.0-130
1,1,1,2-Tetrachloroethane 5.00 4.20 84.0 75.0-125
1,1,2,2-Tetrachloroethane 5.00 5.19 104 65.0-130
Tetrachloroethene 5.00 4.08 81.6 72.0-132
Toluene 5.00 4.46 89.2 79.0-120
1,1,2-Trichlorotrifluoroethane 5.00 4.51 90.2 69.0-132
1,2,3-Trichlorobenzene 5.00 4.36 87.2 50.0-138
1,2,4-Trichlorobenzene 5.00 4.28 85.6 57.0-137
1,1,1-Trichloroethane 5.00 4.73 94.6 73.0-124
1,1,2-Trichloroethane 5.00 4.56 91.2 80.0-120
Trichloroethene 5.00 4.27 85.4 78.0-124
Trichlorofluoromethane 5.00 4.99 99.8 59.0-147
1,2,3-Trichloropropane 5.00 5.11 102 73.0-130
1,2,3-Trimethylbenzene 5.00 6.62 132 77.0-120 J4
1,2,4-Trimethylbenzene 5.00 5.23 105 76.0-121
1,3,5-Trimethylbenzene 5.00 5.30 106 76.0-122
Vinyl acetate 25.0 33.4 134 11.0-160
Vinyl chloride 5.00 4.50 90.0 67.0-131
Xylenes, Total 15.0 13.1 87.3 79.0-123
(S) Toluene-d8 94.1 80.0-120
(S) 4-Bromofluorobenzene 89.3 77.0-126
(S) 1,2-Dichloroethane-d4 110 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 828 of 1252 19 of 26 WG1640339 QUALITY CONTROL SUMMARY
Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-01 L1329291-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329291-01 03/25/21 11:18 • (MS) R3634767-4 03/25/21 18:35 • (MSD) R3634767-5 03/25/21 18:57 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l % % % % %
Acetone 25.0 U 17.3 22.5 69.2 90.0 1 10.0-160 26.1 35
Acrylonitrile 25.0 U 19.1 27.0 76.4 108 1 21.0-160 J3 34.3 32 Benzene 5.00 0.111 0.875 3.50 15.3 67.8 1 17.0-158 J6 J3 120 27 Bromobenzene 5.00 U 1.64 4.12 32.8 82.4 1 30.0-149 J3 86.1 28 Bromodichloromethane 5.00 U 1.57 3.99 31.4 79.8 1 31.0-150 J3 87.1 27 Bromochloromethane 5.00 U 1.68 3.80 33.6 76.0 1 38.0-142 J6 J3 77.4 26 Bromoform 5.00 U 2.06 3.51 41.2 70.2 1 29.0-150 J3 52.1 29 Bromomethane 5.00 U U 2.77 0.000 55.4 1 10.0-160 J6 J3 200 38 n-Butylbenzene 5.00 U 0.786 3.76 15.7 75.2 1 31.0-150 J6 J3 131 30 sec-Butylbenzene 5.00 U 0.624 4.22 12.5 84.4 1 33.0-155 J6 J3 148 29 tert-Butylbenzene 5.00 U 0.690 3.92 13.8 78.4 1 34.0-153 J6 J3 140 28 Carbon disulfide 5.00 U 0.494 2.59 9.88 51.8 1 10.0-156 J6 J3 136 28 Carbon tetrachloride 5.00 U 0.531 3.84 10.6 76.8 1 23.0-159 J6 J3 151 28 Chlorobenzene 5.00 U 1.10 3.58 22.0 71.6 1 33.0-152 J6 J3 106 27 Chlorodibromomethane 5.00 U 2.07 4.17 41.4 83.4 1 37.0-149 J3 67.3 27 Chloroethane 5.00 U 0.442 3.40 8.84 68.0 1 10.0-160 J6 J3 154 30 Chloroform 5.00 3.67 4.71 7.73 20.8 81.2 1 29.0-154 J6 J3 48.6 28 Chloromethane 5.00 U U 3.76 0.000 75.2 1 10.0-160 J6 J3 200 29 1,2-Dibromo-3-Chloropropane 5.00 U 2.53 3.72 50.6 74.4 1 22.0-151 J3 38.1 34 1,2-Dibromoethane 5.00 U 2.09 3.83 41.8 76.6 1 34.0-147 J3 58.8 27 Dibromomethane 5.00 U 2.09 4.07 41.8 81.4 1 30.0-151 J3 64.3 27 1,2-Dichlorobenzene 5.00 U 1.88 4.27 37.6 85.4 1 34.0-149 J3 77.7 28 1,3-Dichlorobenzene 5.00 U 1.40 3.82 28.0 76.4 1 36.0-146 J6 J3 92.7 27 1,4-Dichlorobenzene 5.00 U 1.62 3.98 32.4 79.6 1 35.0-142 J6 J3 84.3 27 trans-1,4-Dichloro-2-butene 5.00 U 3.49 4.47 69.8 89.4 1 10.0-157 24.6 37 Dichlorodifluoromethane 5.00 U U 3.30 0.000 66.0 1 10.0-160 J6 J3 200 29 1,1-Dichloroethane 5.00 U 0.804 3.74 16.1 74.8 1 25.0-158 J6 J3 129 27 1,2-Dichloroethane 5.00 U 2.34 4.79 46.8 95.8 1 29.0-151 J3 68.7 27 1,1-Dichloroethene 5.00 U 0.297 3.49 5.94 69.8 1 11.0-160 J6 J3 169 29 cis-1,2-Dichloroethene 5.00 U 0.956 3.43 19.1 68.6 1 10.0-160 J3 113 27 trans-1,2-Dichloroethene 5.00 U 0.545 3.40 10.9 68.0 1 17.0-153 J6 J3 145 27 1,2-Dichloropropane 5.00 U 1.44 4.31 28.8 86.2 1 30.0-156 J6 J3 99.8 27 cis-1,3-Dichloropropene 5.00 U 1.51 3.71 30.2 74.2 1 34.0-149 J6 J3 84.3 28 trans-1,3-Dichloropropene 5.00 U 1.72 3.71 34.4 74.2 1 32.0-149 J3 73.3 28 2-Chlorotoluene 5.00 U 1.07 4.05 21.4 81.0 1 32.0-153 J6 J3 116 28 4-Chlorotoluene 5.00 U 1.17 3.94 23.4 78.8 1 32.0-150 J6 J3 108 28 Di-isopropyl ether 5.00 U 2.10 4.71 42.0 94.2 1 21.0-160 J3 76.7 28 Ethylbenzene 5.00 U 0.712 3.43 14.2 68.6 1 30.0-155 J6 J3 131 27 2-Hexanone 25.0 U 16.7 22.5 66.8 90.0 1 21.0-160 J3 29.6 29 n-Hexane 5.00 U 1.44 4.29 28.8 85.8 1 10.0-153 J3 99.5 28 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Volatile Organic Compounds (GC/MS) by Method 8260B L1329291-01 L1329291-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329291-01 03/25/21 11:18 • (MS) R3634767-4 03/25/21 18:35 • (MSD) R3634767-5 03/25/21 18:57 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l % % % % %
Iodomethane 25.0 U 3.40 15.2 0.000 60.8 1 10.0-160 J3 200 40 Isopropylbenzene 5.00 U 0.625 3.59 12.5 71.8 1 28.0-157 J6 J3 141 27 p-Isopropyltoluene 5.00 U 0.670 3.87 13.4 77.4 1 30.0-154 J6 J3 141 29 2-Butanone (MEK) 25.0 U 19.7 24.9 78.8 99.6 1 10.0-160 23.3 32 Methylene Chloride 5.00 U 1.62 3.65 32.4 73.0 1 23.0-144 J3 77.0 28 4-Methyl-2-pentanone (MIBK) 25.0 U 18.4 26.2 73.6 105 1 29.0-160 J3 35.0 29 Methyl tert-butyl ether 5.00 U 2.47 4.22 49.4 84.4 1 28.0-150 J3 52.3 29 1,1-Dichloropropene 5.00 U 0.356 3.67 7.12 73.4 1 25.0-158 J6 J3 165 27 Naphthalene 5.00 U 2.56 4.10 51.2 82.0 1 12.0-156 J3 46.2 35 1,3-Dichloropropane 5.00 U 2.12 4.05 42.4 81.0 1 38.0-147 J3 62.6 27 n-Propylbenzene 5.00 U 0.703 3.78 14.1 75.6 1 31.0-154 J6 J3 137 28 Styrene 5.00 U 1.09 3.52 21.8 70.4 1 33.0-155 J6 J3 105 28 1,1,1,2-Tetrachloroethane 5.00 U 1.32 3.51 26.4 70.2 1 36.0-151 J6 J3 90.7 29 2,2-Dichloropropane 5.00 U 0.516 4.34 10.3 86.8 1 24.0-152 J6 J3 157 29 1,1,2,2-Tetrachloroethane 5.00 U 3.46 5.01 69.2 100 1 33.0-150 J3 36.6 28 Tetrachloroethene 5.00 U 0.522 3.18 10.4 63.6 1 10.0-160 J3 144 27 Toluene 5.00 U 0.988 3.60 19.8 72.0 1 26.0-154 J6 J3 114 28 1,2,3-Trichlorobenzene 5.00 U 2.01 3.66 40.2 73.2 1 17.0-150 J3 58.2 36 Hexachloro-1,3-butadiene 5.00 U 0.642 2.93 12.8 58.6 1 20.0-154 J6 J3 128 34 1,2,4-Trichlorobenzene 5.00 U 1.77 3.64 35.4 72.8 1 24.0-150 J3 69.1 33 1,1,1-Trichloroethane 5.00 U 0.514 3.89 10.3 77.8 1 23.0-160 J6 J3 153 28 1,1,2-Trichloroethane 5.00 U 2.27 4.23 45.4 84.6 1 35.0-147 J3 60.3 27 Trichloroethene 5.00 U 0.787 3.25 15.7 65.0 1 10.0-160 J3 122 25 Trichlorofluoromethane 5.00 U 0.170 4.09 3.40 81.8 1 17.0-160 J6 J3 184 31 1,2,3-Trichloropropane 5.00 U 3.38 5.17 67.6 103 1 34.0-151 J3 41.9 29 1,2,3-Trimethylbenzene 5.00 U 1.91 5.34 38.2 107 1 32.0-149 J3 94.6 28 1,2,4-Trimethylbenzene 5.00 U 1.19 4.18 23.8 83.6 1 26.0-154 J6 J3 111 27 1,3,5-Trimethylbenzene 5.00 U 0.925 4.07 18.5 81.4 1 28.0-153 J6 J3 126 27 Vinyl chloride 5.00 U U 3.08 0.000 61.6 1 10.0-160 J6 J3 200 27 Xylenes, Total 15.0 U 2.51 10.4 16.7 69.3 1 29.0-154 J6 J3 122 28 1,1,2-Trichlorotrifluoroethane 5.00 U 0.385 3.80 7.70 76.0 1 23.0-160 J6 J3 163 30 Vinyl acetate 25.0 U 18.3 29.2 73.2 117 1 12.0-160 J3 45.9 31 (S) Toluene-d8 92.2 92.6 80.0-120
(S) 4-Bromofluorobenzene 89.6 92.4 77.0-126
(S) 1,2-Dichloroethane-d4 110 110 70.0-130
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1329291-01,02 Method Blank (MB)
(MB) R3635355-1 03/26/21 14:34
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
C12-C22 Hydrocarbons U 33.0 100
C22-C32 Hydrocarbons U 33.0 100
C32-C40 Hydrocarbons U 33.0 100
(S) o-Terphenyl 99.5 52.0-156
Laboratory Control Sample (LCS)
(LCS) R3635355-2 03/26/21 14:54
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
C22-C32 Hydrocarbons 750 682 90.9 50.0-150
C12-C22 Hydrocarbons 750 751 100 50.0-150
(S) o-Terphenyl 93.0 52.0-156
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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Abbreviations and Definitions
MDL Method Detection Limit.

RDL Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.

J3 The associated batch QC was outside the established quality control range for precision.

J4 The associated batch QC was outside the established quality control range for accuracy.

J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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RMD Environmental - Walnut Creek, CA 01-LP-001 L1329291 03/29/21 13:39 832 of 1252 23 of 26 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

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ANALYTICAL REPORT
March 26, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1330357
Samples Received: 03/17/2021
Project Number: 01-LP-001 TASK 2
Description: Lane Partners, 222 E. 4th Ave
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1330357 03/26/21 13:10 1 of 26 March 26, 2021
Jason Romer
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Ds: Detection Summary 5
Sr: Sample Results 7
SB-06-COMP L1330357-01 7
SB-09-COMP L1330357-02 8
SB-10-COMP L1330357-03 9
SB-01-COMP L1330357-04 10
SB-04-COMP L1330357-05 11
SB-05-COMP L1330357-06 12
Qc: Quality Control Summary 13
Total Solids by Method 2540 G-2011 13
Mercury by Method 7471A 15
Metals (ICP) by Method 6010B 16
Gl: Glossary of Terms 19
Al: Accreditations & Locations 20
Sc: Sample Chain of Custody 21
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-06-COMP L1330357-01 Solid Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1637327 1 03/20/21 15:11 03/20/21 15:34 JWW Mt. Juliet, TN Mercury by Method 7471A WG1640953 1 03/26/21 08:35 03/26/21 11:53 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:42 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-09-COMP L1330357-02 Solid Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1637327 1 03/20/21 15:11 03/20/21 15:34 JWW Mt. Juliet, TN Mercury by Method 7471A WG1640953 1 03/26/21 08:35 03/26/21 11:56 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:50 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-10-COMP L1330357-03 Solid Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1637327 1 03/20/21 15:11 03/20/21 15:34 JWW Mt. Juliet, TN Mercury by Method 7471A WG1640953 1 03/26/21 08:35 03/26/21 11:59 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:53 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-01-COMP L1330357-04 Solid Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1636652 1 03/18/21 16:43 03/18/21 17:02 JWW Mt. Juliet, TN Mercury by Method 7471A WG1640953 1 03/26/21 08:35 03/26/21 12:01 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:56 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-04-COMP L1330357-05 Solid Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1636652 1 03/18/21 16:43 03/18/21 17:02 JWW Mt. Juliet, TN Mercury by Method 7471A WG1640953 1 03/26/21 08:35 03/26/21 12:11 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 15:59 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-05-COMP L1330357-06 Solid Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Total Solids by Method 2540 G-2011 WG1636652 1 03/18/21 16:43 03/18/21 17:02 JWW Mt. Juliet, TN Mercury by Method 7471A WG1640953 1 03/26/21 08:35 03/26/21 12:14 ABL Mt. Juliet, TN Metals (ICP) by Method 6010B WG1640232 1 03/25/21 08:27 03/25/21 16:01 KMG Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1330357 03/26/21 13:10 4 of 26 Jason Romer
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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DETECTION SUMMARY
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-06-COMP L1330357-01 Mercury 0.0693 0.0223 0.0496 1 03/26/2021 11:53 WG1640953 SB-09-COMP L1330357-02 Mercury 0.0859 0.0207 0.0460 1 03/26/2021 11:56 WG1640953 SB-10-COMP L1330357-03 Mercury 0.110 0.0204 0.0454 1 03/26/2021 11:59 WG1640953 SB-01-COMP L1330357-04 Mercury 0.0504 0.0220 0.0489 1 03/26/2021 12:01 WG1640953 SB-04-COMP L1330357-05 Mercury 0.0404 J 0.0219 0.0488 1 03/26/2021 12:11 WG1640953 SB-05-COMP L1330357-06 Mercury 0.0456 J 0.0223 0.0496 1 03/26/2021 12:14 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-06-COMP L1330357-01 Barium 107 0.106 0.620 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Beryllium 0.377 0.0391 0.248 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Cadmium 0.324 J 0.0584 0.620 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Chromium 73.7 0.165 1.24 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Cobalt 15.9 0.101 1.24 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Copper 24.5 0.496 2.48 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Lead 5.43 0.258 0.620 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Molybdenum 0.371 J 0.135 0.620 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Nickel 84.2 0.164 2.48 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Vanadium 50.5 0.628 2.48 1 03/25/2021 15:42 WG1640232 SB-06-COMP L1330357-01 Zinc 34.5 1.03 6.20 1 03/25/2021 15:42 WG1640232 SB-09-COMP L1330357-02 Arsenic 1.26 J 0.596 2.30 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Barium 135 0.0981 0.575 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Beryllium 0.600 0.0363 0.230 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Cadmium 0.491 J 0.0542 0.575 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Chromium 96.8 0.153 1.15 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Cobalt 25.8 0.0933 1.15 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Copper 37.4 0.460 2.30 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Lead 7.68 0.239 0.575 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Nickel 156 0.152 2.30 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Selenium 2.03 J 0.879 2.30 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Vanadium 61.4 0.582 2.30 1 03/25/2021 15:50 WG1640232 SB-09-COMP L1330357-02 Zinc 44.3 0.958 5.75 1 03/25/2021 15:50 WG1640232 SB-10-COMP L1330357-03 Arsenic 1.44 J 0.588 2.27 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Barium 143 0.0967 0.567 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Beryllium 0.539 0.0357 0.227 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Cadmium 0.488 J 0.0534 0.567 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Chromium 117 0.151 1.13 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Cobalt 20.5 0.0920 1.13 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Copper 45.8 0.454 2.27 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Lead 7.60 0.236 0.567 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Nickel 171 0.150 2.27 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Selenium 2.19 J 0.867 2.27 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Vanadium 70.8 0.574 2.27 1 03/25/2021 15:53 WG1640232 SB-10-COMP L1330357-03 Zinc 51.0 0.944 5.67 1 03/25/2021 15:53 WG1640232 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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DETECTION SUMMARY
Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilutio
n
Analysis Batch
Client ID Lab Sample ID Analyte mg/kg mg/kg mg/kg date / time SB-01-COMP L1330357-04 Barium 131 0.104 0.611 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Beryllium 0.539 0.0385 0.245 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Cadmium 0.504 J 0.0576 0.611 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Chromium 96.6 0.163 1.22 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Cobalt 23.2 0.0991 1.22 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Copper 39.8 0.489 2.45 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Lead 6.25 0.254 0.611 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Nickel 154 0.161 2.45 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Selenium 1.49 J 0.934 2.45 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Vanadium 66.4 0.619 2.45 1 03/25/2021 15:56 WG1640232 SB-01-COMP L1330357-04 Zinc 48.8 1.02 6.11 1 03/25/2021 15:56 WG1640232 SB-04-COMP L1330357-05 Arsenic 1.44 J 0.631 2.44 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Barium 109 0.104 0.610 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Beryllium 0.417 0.0384 0.244 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Cadmium 0.398 J 0.0574 0.610 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Chromium 75.8 0.162 1.22 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Cobalt 16.8 0.0989 1.22 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Copper 26.4 0.488 2.44 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Lead 6.33 0.254 0.610 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Nickel 90.6 0.161 2.44 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Selenium 2.08 J 0.931 2.44 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Vanadium 57.8 0.617 2.44 1 03/25/2021 15:59 WG1640232 SB-04-COMP L1330357-05 Zinc 42.8 1.01 6.10 1 03/25/2021 15:59 WG1640232 SB-05-COMP L1330357-06 Arsenic 1.76 J 0.642 2.48 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Barium 135 0.106 0.620 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Beryllium 0.486 0.0391 0.248 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Cadmium 0.520 J 0.0584 0.620 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Chromium 99.6 0.165 1.24 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Cobalt 23.7 0.101 1.24 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Copper 36.1 0.496 2.48 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Lead 7.12 0.258 0.620 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Nickel 152 0.164 2.48 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Selenium 1.65 J 0.947 2.48 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Vanadium 66.8 0.627 2.48 1 03/25/2021 16:01 WG1640232 SB-05-COMP L1330357-06 Zinc 52.6 1.03 6.20 1 03/25/2021 16:01 WG1640232 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1330357
SB-06-COMP
Collected date/time: 03/16/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 80.6 1 03/20/2021 15:34 WG1637327
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0693 0.0223 0.0496 1 03/26/2021 11:53 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.675 2.48 1 03/25/2021 15:42 WG1640232
Arsenic U 0.643 2.48 1 03/25/2021 15:42 WG1640232
Barium 107 0.106 0.620 1 03/25/2021 15:42 WG1640232
Beryllium 0.377 0.0391 0.248 1 03/25/2021 15:42 WG1640232 Cadmium 0.324 J 0.0584 0.620 1 03/25/2021 15:42 WG1640232 Chromium 73.7 0.165 1.24 1 03/25/2021 15:42 WG1640232
Cobalt 15.9 0.101 1.24 1 03/25/2021 15:42 WG1640232
Copper 24.5 0.496 2.48 1 03/25/2021 15:42 WG1640232
Lead 5.43 0.258 0.620 1 03/25/2021 15:42 WG1640232
Molybdenum 0.371 J 0.135 0.620 1 03/25/2021 15:42 WG1640232 Nickel 84.2 0.164 2.48 1 03/25/2021 15:42 WG1640232
Selenium U 0.948 2.48 1 03/25/2021 15:42 WG1640232
Silver U 0.158 1.24 1 03/25/2021 15:42 WG1640232
Thallium U 0.489 2.48 1 03/25/2021 15:42 WG1640232
Vanadium 50.5 0.628 2.48 1 03/25/2021 15:42 WG1640232
Zinc 34.5 1.03 6.20 1 03/25/2021 15:42 WG1640232
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1330357
SB-09-COMP
Collected date/time: 03/16/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 86.9 1 03/20/2021 15:34 WG1637327
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0859 0.0207 0.0460 1 03/26/2021 11:56 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.626 2.30 1 03/25/2021 15:50 WG1640232
Arsenic 1.26 J 0.596 2.30 1 03/25/2021 15:50 WG1640232
Barium 135 0.0981 0.575 1 03/25/2021 15:50 WG1640232
Beryllium 0.600 0.0363 0.230 1 03/25/2021 15:50 WG1640232 Cadmium 0.491 J 0.0542 0.575 1 03/25/2021 15:50 WG1640232 Chromium 96.8 0.153 1.15 1 03/25/2021 15:50 WG1640232
Cobalt 25.8 0.0933 1.15 1 03/25/2021 15:50 WG1640232
Copper 37.4 0.460 2.30 1 03/25/2021 15:50 WG1640232
Lead 7.68 0.239 0.575 1 03/25/2021 15:50 WG1640232
Molybdenum U 0.125 0.575 1 03/25/2021 15:50 WG1640232
Nickel 156 0.152 2.30 1 03/25/2021 15:50 WG1640232
Selenium 2.03 J 0.879 2.30 1 03/25/2021 15:50 WG1640232 Silver U 0.146 1.15 1 03/25/2021 15:50 WG1640232
Thallium U 0.453 2.30 1 03/25/2021 15:50 WG1640232
Vanadium 61.4 0.582 2.30 1 03/25/2021 15:50 WG1640232
Zinc 44.3 0.958 5.75 1 03/25/2021 15:50 WG1640232
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1330357
SB-10-COMP
Collected date/time: 03/16/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 88.2 1 03/20/2021 15:34 WG1637327
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.110 0.0204 0.0454 1 03/26/2021 11:59 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.617 2.27 1 03/25/2021 15:53 WG1640232
Arsenic 1.44 J 0.588 2.27 1 03/25/2021 15:53 WG1640232
Barium 143 0.0967 0.567 1 03/25/2021 15:53 WG1640232
Beryllium 0.539 0.0357 0.227 1 03/25/2021 15:53 WG1640232 Cadmium 0.488 J 0.0534 0.567 1 03/25/2021 15:53 WG1640232 Chromium 117 0.151 1.13 1 03/25/2021 15:53 WG1640232
Cobalt 20.5 0.0920 1.13 1 03/25/2021 15:53 WG1640232
Copper 45.8 0.454 2.27 1 03/25/2021 15:53 WG1640232
Lead 7.60 0.236 0.567 1 03/25/2021 15:53 WG1640232
Molybdenum U 0.124 0.567 1 03/25/2021 15:53 WG1640232
Nickel 171 0.150 2.27 1 03/25/2021 15:53 WG1640232
Selenium 2.19 J 0.867 2.27 1 03/25/2021 15:53 WG1640232 Silver U 0.144 1.13 1 03/25/2021 15:53 WG1640232
Thallium U 0.447 2.27 1 03/25/2021 15:53 WG1640232
Vanadium 70.8 0.574 2.27 1 03/25/2021 15:53 WG1640232
Zinc 51.0 0.944 5.67 1 03/25/2021 15:53 WG1640232
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1330357
SB-01-COMP
Collected date/time: 03/15/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 81.8 1 03/18/2021 17:02 WG1636652
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0504 0.0220 0.0489 1 03/26/2021 12:01 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.665 2.45 1 03/25/2021 15:56 WG1640232
Arsenic U 0.633 2.45 1 03/25/2021 15:56 WG1640232
Barium 131 0.104 0.611 1 03/25/2021 15:56 WG1640232
Beryllium 0.539 0.0385 0.245 1 03/25/2021 15:56 WG1640232 Cadmium 0.504 J 0.0576 0.611 1 03/25/2021 15:56 WG1640232 Chromium 96.6 0.163 1.22 1 03/25/2021 15:56 WG1640232
Cobalt 23.2 0.0991 1.22 1 03/25/2021 15:56 WG1640232
Copper 39.8 0.489 2.45 1 03/25/2021 15:56 WG1640232
Lead 6.25 0.254 0.611 1 03/25/2021 15:56 WG1640232
Molybdenum U 0.133 0.611 1 03/25/2021 15:56 WG1640232
Nickel 154 0.161 2.45 1 03/25/2021 15:56 WG1640232
Selenium 1.49 J 0.934 2.45 1 03/25/2021 15:56 WG1640232 Silver U 0.155 1.22 1 03/25/2021 15:56 WG1640232
Thallium U 0.482 2.45 1 03/25/2021 15:56 WG1640232
Vanadium 66.4 0.619 2.45 1 03/25/2021 15:56 WG1640232
Zinc 48.8 1.02 6.11 1 03/25/2021 15:56 WG1640232
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1330357
SB-04-COMP
Collected date/time: 03/15/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 82.0 1 03/18/2021 17:02 WG1636652
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0404 J 0.0219 0.0488 1 03/26/2021 12:11 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.663 2.44 1 03/25/2021 15:59 WG1640232
Arsenic 1.44 J 0.631 2.44 1 03/25/2021 15:59 WG1640232
Barium 109 0.104 0.610 1 03/25/2021 15:59 WG1640232
Beryllium 0.417 0.0384 0.244 1 03/25/2021 15:59 WG1640232 Cadmium 0.398 J 0.0574 0.610 1 03/25/2021 15:59 WG1640232 Chromium 75.8 0.162 1.22 1 03/25/2021 15:59 WG1640232
Cobalt 16.8 0.0989 1.22 1 03/25/2021 15:59 WG1640232
Copper 26.4 0.488 2.44 1 03/25/2021 15:59 WG1640232
Lead 6.33 0.254 0.610 1 03/25/2021 15:59 WG1640232
Molybdenum U 0.133 0.610 1 03/25/2021 15:59 WG1640232
Nickel 90.6 0.161 2.44 1 03/25/2021 15:59 WG1640232
Selenium 2.08 J 0.931 2.44 1 03/25/2021 15:59 WG1640232 Silver U 0.155 1.22 1 03/25/2021 15:59 WG1640232
Thallium U 0.480 2.44 1 03/25/2021 15:59 WG1640232
Vanadium 57.8 0.617 2.44 1 03/25/2021 15:59 WG1640232
Zinc 42.8 1.01 6.10 1 03/25/2021 15:59 WG1640232
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1330357
SB-05-COMP
Collected date/time: 03/15/21 00:00
Total Solids by Method 2540 G-2011
Result Qualifier Dilution Analysis Batch
Analyte % date / time
Total Solids 80.7 1 03/18/2021 17:02 WG1636652
Mercury by Method 7471A
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Mercury 0.0456 J 0.0223 0.0496 1 03/26/2021 12:14 WG1640953 Metals (ICP) by Method 6010B
Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time
Antimony U 0.674 2.48 1 03/25/2021 16:01 WG1640232
Arsenic 1.76 J 0.642 2.48 1 03/25/2021 16:01 WG1640232
Barium 135 0.106 0.620 1 03/25/2021 16:01 WG1640232
Beryllium 0.486 0.0391 0.248 1 03/25/2021 16:01 WG1640232 Cadmium 0.520 J 0.0584 0.620 1 03/25/2021 16:01 WG1640232 Chromium 99.6 0.165 1.24 1 03/25/2021 16:01 WG1640232
Cobalt 23.7 0.101 1.24 1 03/25/2021 16:01 WG1640232
Copper 36.1 0.496 2.48 1 03/25/2021 16:01 WG1640232
Lead 7.12 0.258 0.620 1 03/25/2021 16:01 WG1640232
Molybdenum U 0.135 0.620 1 03/25/2021 16:01 WG1640232
Nickel 152 0.164 2.48 1 03/25/2021 16:01 WG1640232
Selenium 1.65 J 0.947 2.48 1 03/25/2021 16:01 WG1640232 Silver U 0.157 1.24 1 03/25/2021 16:01 WG1640232
Thallium U 0.489 2.48 1 03/25/2021 16:01 WG1640232
Vanadium 66.8 0.627 2.48 1 03/25/2021 16:01 WG1640232
Zinc 52.6 1.03 6.20 1 03/25/2021 16:01 WG1640232
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1330357 03/26/21 14:34 845 of 1252 12 of 26 WG1636652 QUALITY CONTROL SUMMARY
Total Solids by Method 2540 G-2011 L1330357-04,05,06
Method Blank (MB)
(MB) R3632676-1 03/18/21 17:02
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.000
L1327770-13 Original Sample (OS) • Duplicate (DUP)
(OS) L1327770-13 03/18/21 17:02 • (DUP) R3632676-3 03/18/21 17:02 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 87.7 88.4 1 0.819 10
Laboratory Control Sample (LCS)
(LCS) R3632676-2 03/18/21 17:02
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Total Solids by Method 2540 G-2011 L1330357-01,02,03
Method Blank (MB)
(MB) R3633181-1 03/20/21 15:34
MB Result MB Qualifier MB MDL MB RDL
Analyte % % %
Total Solids 0.000
L1328376-02 Original Sample (OS) • Duplicate (DUP)
(OS) L1328376-02 03/20/21 15:34 • (DUP) R3633181-3 03/20/21 15:34 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits
Analyte % % % %
Total Solids 85.0 86.1 1 1.20 10
Laboratory Control Sample (LCS)
(LCS) R3633181-2 03/20/21 15:34
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte % % % %
Total Solids 50.0 50.0 100 85.0-115
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Mercury by Method 7471A L1330357-01,02,03,04,05,06
Method Blank (MB)
(MB) R3635165-1 03/26/21 11:25
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Mercury U 0.0180 0.0400
Laboratory Control Sample (LCS)
(LCS) R3635165-2 03/26/21 11:28
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Mercury 0.500 0.506 101 80.0-120
L1329260-20 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1329260-20 03/26/21 11:30 • (MS) R3635165-3 03/26/21 11:38 • (MSD) R3635165-4 03/26/21 11:41 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Mercury 0.500 0.0416 0.523 0.530 96.4 97.8 1 75.0-125 1.32 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Metals (ICP) by Method 6010B L1330357-01,02,03,04,05,06 Method Blank (MB)
(MB) R3634945-1 03/25/21 14:46
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Antimony U 0.544 2.00
Arsenic U 0.518 2.00
Barium U 0.0852 0.500
Beryllium U 0.0315 0.200
Cadmium U 0.0471 0.500
Chromium U 0.133 1.00
Cobalt U 0.0811 1.00
Copper U 0.400 2.00
Lead U 0.208 0.500
Molybdenum U 0.109 0.500
Nickel U 0.132 2.00
Selenium U 0.764 2.00
Silver U 0.127 1.00
Thallium U 0.394 2.00
Vanadium U 0.506 2.00
Method Blank (MB)
(MB) R3635005-1 03/25/21 22:18
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/kg mg/kg mg/kg
Zinc U 0.832 5.00
Laboratory Control Sample (LCS)
(LCS) R3634945-2 03/25/21 14:49
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Antimony 100 97.6 97.6 80.0-120
Arsenic 100 96.8 96.8 80.0-120
Barium 100 103 103 80.0-120
Beryllium 100 97.5 97.5 80.0-120
Cadmium 100 97.7 97.7 80.0-120
Chromium 100 98.2 98.2 80.0-120
Cobalt 100 101 101 80.0-120
Copper 100 97.4 97.4 80.0-120
Lead 100 97.4 97.4 80.0-120
Molybdenum 100 103 103 80.0-120
Nickel 100 100 100 80.0-120
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Metals (ICP) by Method 6010B L1330357-01,02,03,04,05,06 Laboratory Control Sample (LCS)
(LCS) R3634945-2 03/25/21 14:49
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Selenium 100 99.9 99.9 80.0-120
Silver 20.0 18.9 94.5 80.0-120
Thallium 100 98.2 98.2 80.0-120
Vanadium 100 101 101 80.0-120
Laboratory Control Sample (LCS)
(LCS) R3635005-2 03/25/21 22:20
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg % %
Zinc 100 97.3 97.3 80.0-120
L1328977-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328977-01 03/25/21 14:52 • (MS) R3634945-5 03/25/21 15:00 • (MSD) R3634945-6 03/25/21 15:02 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Antimony 114 U 89.6 94.3 78.8 83.0 1 75.0-125 5.20 20
Arsenic 114 2.28 96.5 103 82.9 88.3 1 75.0-125 6.13 20
Barium 114 108 199 199 80.2 80.2 1 75.0-125 0.0118 20
Beryllium 114 0.391 99.7 104 87.4 91.6 1 75.0-125 4.68 20 Cadmium 114 0.478 102 107 89.5 93.3 1 75.0-125 4.17 20
Chromium 114 93.5 178 182 74.0 77.9 1 75.0-125 J6 2.45 20 Cobalt 114 21.3 130 137 96.1 102 1 75.0-125 5.10 20
Copper 114 35.1 128 135 82.1 87.9 1 75.0-125 5.00 20
Lead 114 5.77 113 118 93.9 98.6 1 75.0-125 4.64 20
Molybdenum 114 U 100 105 88.1 92.4 1 75.0-125 4.73 20
Nickel 114 125 204 226 69.2 88.5 1 75.0-125 J6 10.2 20
Selenium 114 1.65 96.2 103 83.2 89.3 1 75.0-125 6.92 20 Silver 22.7 U 20.0 20.8 88.0 91.4 1 75.0-125 3.79 20
Thallium 114 U 104 108 91.1 94.8 1 75.0-125 3.91 20
Vanadium 114 72.7 150 161 67.6 77.4 1 75.0-125 J6 7.21 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Metals (ICP) by Method 6010B L1330357-01,02,03,04,05,06 L1328977-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1328977-01 03/25/21 22:23 • (MS) R3635005-5 03/25/21 22:31 • (MSD) R3635005-6 03/25/21 22:34 Spike Amount
(dry)
Original Result
(dry) MS Result (dry) MSD Result (dry) MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg % % % % %
Zinc 114 51.6 142 146 79.4 83.1 1 75.0-125 2.90 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Abbreviations and Definitions
(dry) Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils].

MDL Method Detection Limit.

MDL (dry) Method Detection Limit.

RDL Reported Detection Limit.

RDL (dry) Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

SDG Sample Delivery Group.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.

J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 TASK 2 L1330357 03/26/21 14:34 852 of 1252 19 of 26 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

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ANALYTICAL REPORT
May 13, 2021
RMD Environmental - Walnut Creek, CA
Sample Delivery Group: L1345033
Samples Received: 03/17/2021
Project Number: 01-LP-001
Description: Lane Partners,222 E 4th St
Report To: Erin Male
1371 Oakland Blvd.

Suite 200
Walnut Creek, CA 94596
Entire Report Reviewed By:

May 13, 2021
[Preliminary Report]
Jordan N Zito
Project Manager
Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received.

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Jordan N Zito
Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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TABLE OF CONTENTS
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 5
Ds: Detection Summary 6
Sr: Sample Results 7
SB-08-COMP L1345033-01 7
SB-03-COMP L1345033-02 8
SB-02-COMP L1345033-03 9
SB-07-COMP L1345033-04 10
SB-11-COMP L1345033-05 11
SB-06-COMP L1345033-06 12
SB-09-COMP L1345033-07 13
SB-01-COMP L1345033-08 14
SB-04-COMP L1345033-09 15
SB-05-COMP L1345033-10 16
SB-10-COMP L1345033-11 17
Qc: Quality Control Summary 18
Metals (ICP) by Method 6010B 18
Gl: Glossary of Terms 21
Al: Accreditations & Locations 22
Sc: Sample Chain of Custody 23
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-08-COMP L1345033-01 GW Erin Male 03/18/21 00:00 03/20/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:26 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-03-COMP L1345033-02 GW Erin Male 03/18/21 00:00 03/20/21 10:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:29 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-02-COMP L1345033-03 GW Erin Male 03/17/21 00:00 03/19/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1667437 1 05/10/21 15:44 05/10/21 15:44 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1669651 9 05/13/21 05:57 05/13/21 11:17 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-07-COMP L1345033-04 GW Erin Male 03/17/21 00:00 03/19/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1667437 1 05/10/21 15:44 05/10/21 15:44 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1669651 9 05/13/21 05:57 05/13/21 11:28 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-11-COMP L1345033-05 GW Erin Male 03/17/21 00:00 03/19/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1667437 1 05/10/21 15:44 05/10/21 15:44 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1669651 9 05/13/21 05:57 05/13/21 11:31 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-06-COMP L1345033-06 GW Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:32 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-09-COMP L1345033-07 GW Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:35 KMG Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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SAMPLE SUMMARY
Collected by Collected date/time Received date/time
SB-01-COMP L1345033-08 GW Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:43 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-04-COMP L1345033-09 GW Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:46 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-05-COMP L1345033-10 GW Erin Male 03/15/21 00:00 03/17/21 11:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 22CCRA2 WG1662596 1 05/01/21 17:52 05/01/21 17:52 IDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG1663979 9 05/07/21 21:28 05/08/21 02:48 KMG Mt. Juliet, TN Collected by Collected date/time Received date/time
SB-10-COMP L1345033-11 Waste Erin Male 03/16/21 00:00 03/18/21 12:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time
Preparation by Method 1311 WG1669011 1 05/12/21 16:58 05/12/21 16:58 TM Mt. Juliet, TN Metals (ICP) by Method 6010B WG1669902 1 05/13/21 11:10 05/13/21 15:01 KMG Mt. Juliet, TN 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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CASE NARRATIVE
All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report]
Jordan N Zito
Project Manager
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Project Manager
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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DETECTION SUMMARY
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Client ID Lab Sample ID Analyte ug/l ug/l ug/l date / time SB-08-COMP L1345033-01 Chromium 143 12.6 90.0 9 05/08/2021 02:26 WG1663979 SB-03-COMP L1345033-02 Chromium 245 12.6 90.0 9 05/08/2021 02:29 WG1663979 SB-02-COMP L1345033-03 Chromium 190 O1 12.6 90.0 9 05/13/2021 11:17 WG1669651 SB-07-COMP L1345033-04 Chromium 266 12.6 90.0 9 05/13/2021 11:28 WG1669651 SB-11-COMP L1345033-05 Chromium 615 12.6 90.0 9 05/13/2021 11:31 WG1669651 SB-06-COMP L1345033-06 Chromium 345 12.6 90.0 9 05/08/2021 02:32 WG1663979 SB-09-COMP L1345033-07 Chromium 85.8 J 12.6 90.0 9 05/08/2021 02:35 WG1663979 SB-01-COMP L1345033-08 Chromium 137 12.6 90.0 9 05/08/2021 02:43 WG1663979 SB-04-COMP L1345033-09 Chromium 166 12.6 90.0 9 05/08/2021 02:46 WG1663979 SB-05-COMP L1345033-10 Chromium 289 12.6 90.0 9 05/08/2021 02:48 WG1663979 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1345033
SB-08-COMP
Collected date/time: 03/18/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.33 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 143 12.6 90.0 9 05/08/2021 02:26 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1345033
SB-03-COMP
Collected date/time: 03/18/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.32 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 245 12.6 90.0 9 05/08/2021 02:29 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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L1345033
SB-02-COMP
Collected date/time: 03/17/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/10/2021 3:44:25 PM WG1667437
Final pH 4.99 5/10/2021 3:44:25 PM WG1667437
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 190 O1 12.6 90.0 9 05/13/2021 11:17 WG1669651
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 862 of 1252 9 of 33 SAMPLE RESULTS - 04
L1345033
SB-07-COMP
Collected date/time: 03/17/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/10/2021 3:44:25 PM WG1667437
Final pH 5.06 5/10/2021 3:44:25 PM WG1667437
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 266 12.6 90.0 9 05/13/2021 11:28 WG1669651
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 863 of 1252 10 of 33 SAMPLE RESULTS - 05
L1345033
SB-11-COMP
Collected date/time: 03/17/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/10/2021 3:44:25 PM WG1667437
Final pH 4.98 5/10/2021 3:44:25 PM WG1667437
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 615 12.6 90.0 9 05/13/2021 11:31 WG1669651
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/13/21 17:19 11 of 33 ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 864 of 1252 11 of 33 SAMPLE RESULTS - 06
L1345033
SB-06-COMP
Collected date/time: 03/16/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.29 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 345 12.6 90.0 9 05/08/2021 02:32 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 865 of 1252 12 of 33 SAMPLE RESULTS - 07
L1345033
SB-09-COMP
Collected date/time: 03/16/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.20 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 85.8 J 12.6 90.0 9 05/08/2021 02:35 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 866 of 1252 13 of 33 SAMPLE RESULTS - 08
L1345033
SB-01-COMP
Collected date/time: 03/15/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.17 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 137 12.6 90.0 9 05/08/2021 02:43 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 867 of 1252 14 of 33 SAMPLE RESULTS - 09
L1345033
SB-04-COMP
Collected date/time: 03/15/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.26 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 166 12.6 90.0 9 05/08/2021 02:46 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 868 of 1252 15 of 33 SAMPLE RESULTS - 10
L1345033
SB-05-COMP
Collected date/time: 03/15/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
STLC Extraction - 5/1/2021 5:52:53 PM WG1662596
Final pH 5.15 5/1/2021 5:52:53 PM WG1662596
Metals (ICP) by Method 6010B
Result Qualifier MDL RDL Dilution Analysis Batch
Analyte ug/l ug/l ug/l date / time
Chromium 289 12.6 90.0 9 05/08/2021 02:48 WG1663979
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 869 of 1252 16 of 33 SAMPLE RESULTS - 11
L1345033
SB-10-COMP
Collected date/time: 03/16/21 00:00
Preparation by Method 1311/22CCRA2
Result Qualifier Prep Batch
Analyte date / time
TCLP Extraction - 5/12/2021 4:58:12 PM WG1669011
Fluid 1 5/12/2021 4:58:12 PM WG1669011
Initial pH 4.86 5/12/2021 4:58:12 PM WG1669011
Final pH 4.92 5/12/2021 4:58:12 PM WG1669011
Metals (ICP) by Method 6010B
Result Qualifier RDL Limit Dilution Analysis Batch
Analyte mg/l mg/l mg/l date / time
Chromium ND 0.100 5 1 05/13/2021 15:01 WG1669902
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 870 of 1252 17 of 33 WG1663979 QUALITY CONTROL SUMMARY
Metals (ICP) by Method 6010B L1345033-01,02,06,07,08,09,10 Method Blank (MB)
(MB) R3651956-1 05/08/21 02:10
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Chromium U 12.6 90.0
Laboratory Control Sample (LCS)
(LCS) R3651956-2 05/08/21 02:13
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Chromium 1000 1050 105 80.0-120
L1346978-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1346978-01 05/08/21 02:15 • (MS) R3651956-4 05/08/21 02:21 • (MSD) R3651956-5 05/08/21 02:24 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l % % % % %
Chromium 9000 112 9480 9510 104 104 9 75.0-125 0.410 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 871 of 1252 18 of 33 WG1669651 QUALITY CONTROL SUMMARY
Metals (ICP) by Method 6010B L1345033-03,04,05
Method Blank (MB)
(MB) R3654175-1 05/13/21 11:11
MB Result MB Qualifier MB MDL MB RDL
Analyte ug/l ug/l ug/l
Chromium U 12.6 90.0
Laboratory Control Sample (LCS)
(LCS) R3654175-2 05/13/21 11:14
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l % %
Chromium 1000 1010 101 80.0-120
L1345033-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1345033-03 05/13/21 11:17 • (MS) R3654175-4 05/13/21 11:22 • (MSD) R3654175-5 05/13/21 11:25 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l % % % % %
Chromium 9000 190 9200 9320 100 101 9 75.0-125 1.26 20
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 872 of 1252 19 of 33 WG1669902 QUALITY CONTROL SUMMARY
Metals (ICP) by Method 6010B L1345033-11
Method Blank (MB)
(MB) R3654178-1 05/13/21 14:37
MB Result MB Qualifier MB MDL MB RDL
Analyte mg/l mg/l mg/l
Chromium U 0.0330 0.100
Laboratory Control Sample (LCS)
(LCS) R3654178-2 05/13/21 14:39
Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/l mg/l % %
Chromium 10.0 9.29 92.9 80.0-120
L1347124-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1347124-01 05/13/21 14:42 • (MS) R3654178-4 05/13/21 14:47 • (MSD) R3654178-5 05/13/21 14:50 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l % % % % %
Chromium 10.0 ND 9.41 9.46 94.1 94.6 1 75.0-125 0.589 20 L1349291-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1349291-02 05/13/21 14:53 • (MS) R3654178-6 05/13/21 14:55 • (MSD) R3654178-7 05/13/21 14:58 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l % % % % %
Chromium 10.0 ND 9.49 9.42 94.9 94.2 1 75.0-125 0.711 20 1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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Abbreviations and Definitions
MDL Method Detection Limit.

ND Not detected at the Reporting Limit (or MDL where applicable).

RDL Reported Detection Limit.

Rec. Recovery.

RPD Relative Percent Difference.

SDG Sample Delivery Group.

U Not detected at the Reporting Limit (or MDL where applicable).

Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported.

Uncertainty
(Radiochemistry) Confidence level of 2 sigma.

Sample Summary (Ss) This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.

Qualifier Description
J The identification of the analyte is acceptable; the reported value is an estimate.

O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference.
1 Cp
2 Tc
3 Ss
4 Cn
5 Ds
6 Sr
7 Qc
8 Gl
9 Al
10 Sc
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE:

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RMD Environmental - Walnut Creek, CA 01-LP-001 L1345033 05/14/21 08:35 874 of 1252 21 of 33 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05
Alaska 17-026 Nevada TN000032021-1
Arizona AZ0612 New Hampshire 2975
Arkansas 88-0469 New Jersey–NELAP TN002
California 2932 New Mexico ¹ TN00003
Colorado TN00003 New York 11742
Connecticut PH-0197 North Carolina Env375
Florida E87487 North Carolina ¹ DW21704
Georgia NELAP North Carolina ³ 41
Georgia ¹ 923 North Dakota R-140
Idaho TN00003 Ohio–VAP CL0069
Illinois 200008 Oklahoma 9915
Indiana C-TN-01 Oregon TN200002
Iowa 364 Pennsylvania 68-02979
Kansas E-10277 Rhode Island LAO00356
Kentucky ¹ ⁶ KY90010 South Carolina 84004002
Kentucky ² 16 South Dakota n/a
Louisiana AI30792 Tennessee ¹ ⁴ 2006
Louisiana LA018 Texas T104704245-20-18
Maine TN00003 Texas ⁵ LAB0152
Maryland 324 Utah TN000032021-11
Massachusetts M-TN003 Vermont VT2006
Michigan 9958 Virginia 110033
Minnesota 047-999-395 Washington C847
Mississippi TN00003 West Virginia 233
Missouri 340 Wisconsin 998093910
Montana CERT0086 Wyoming A2LA
A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789
A2LA – ISO 17025 ⁵ 1461.02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
EPA–Crypto TN00003

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1371 OAKLAND BOULEVARD, SUITE 200 – WALNUT CREEK, CA
October 14, 2022
Mr. Marcus Gilmore
Lane Partners
644 Menlo Avenue, 2nd Floor
Menlo Park, California 94025
Subject: Pre-Construction Site Investigation Report Conclusions and Responses to City of San Mateo Questions
222 East 4th Avenue, San Mateo, California (the “Subject Site”) Dear Mr. Gilmore:

As requested, RMD Environmental Solutions, Inc. (RMD) has prepared this letter to address questions regarding The City of San Mateo’s (the City’s) hazardous materials analysis in consideration of our Pre-Construction Site Investigation Report dated July 7, 2021 (Report), associated with the Subject Site.

Questions provided by the City via e-mail dated October 13, 2022, are listed below in blue italicized text. RMD’s response follows each point in black font.

1. The site is on the Cortese list as “completed, case closed”. Does the Phase II indicate site conditions continue to warrant inclusion on the Cortese list, or can the listing be considered ‘historic’? The Cortese database includes sites with underground storage tanks (USTs) having a reportable release. The Phase I Environmental Site Assessment (Phase I ESA) prepared for the Subject Site (Geosyntec, May 2, 2019 ) documented that USTs and hydraulic lifts associated with two former gasoline service stations at the Site were removed during the 1980s and 1990s. The regulatory closure letter issued by San Mateo County Environmental Health Services (SMCEHS, March 12, 1997) shows that the Subject Site investigation into impacted soils from historical operations at the Subject Site was considered complete and that no further investigation and/or remediation was required. Accordingly, under the applicable Phase I ESA standard (ASTM E1527-13), Geosyntec concluded that these past operations represent a historical recognized environmental condition (HREC) – as opposed to a current or ongoing recognized environmental condition (REC) under ASTM E1527-13. RMD’s 2021 investigation 886 of 1252
Mr. Gilmore
October 14, 2022

Page 2 of 5 ends

San Mateo City CouncilDecember 1, 2022

San Mateo City Council
December 1, 2022