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HomeMy WebLinkAboutDSHW-2024-007835 TRC Project Number 564624.0000.0000 123 N. College Ave., Suite 370 Fort Collins, CO 80524 T 970.484.3263 TRCcompanies.com August 12, 2024 Attn: Douglas J. Hansen, Director Utah Department of Environmental Quality (UDEQ) Waste Management & Radiation Control Division 195 North 1950 West Salt Lake City, Utah 84116 Reference: Response to Comments and Revised Work Plan for August 21, 2023, Fuel Release Holly Energy Partners – Operating, L.P., Lynndyl Station, Juab County, Utah UDEQ Environmental Incident Report No. 16594 Release Coordinates: 39.568301, -112.343739 Dear Mr. Hansen: On behalf of Holly Energy Partners – Operating, L.P. (HEP), TRC Environmental Corporation (TRC) is pleased to provide Utah Department of Environmental Quality (UDEQ) (the “Division”) this response to the Division’s comments and revised remediation work plan associated with a fuel release (UDEQ No. 16594) at the Lynndyl Station (Site) located near Lynndyl, Utah. On August 21, 2023, an above-ground pipeline release of an estimated two barrels of diesel/gasoline fuel mix was discovered at the Site; the release was reportedly caused by an instrumentation failure and was isolated immediately upon discovery. Initially, the release was suspected to have only impacted shallow soils. Surface water and storm drains were not affected by this release and impacts were originally confined to the Site boundaries. Heavy rains during the period following the release initiated minor surficial migration to low-lying areas directly adjacent to the Site; absorbent socks were installed along the Site perimeter to prevent further runoff from the Site. A Site Location Map is included as Figure 1. On behalf of HEP, TRC conducted initial soil assessment activities in September 2023. On November 29, 2023, the Release Response Summary and Work Plan (Work Plan) was submitted to the Division documenting the September 2023 assessment results and proposing a work plan to remediate the hydrocarbon-affected soil. A response letter was received from the Division on February 1, 2024. This submittal addresses the Division’s February 2024 comments to the Work Plan, documents additional delineation results, and includes a revised work plan to remediate the hydrocarbon- affected soil at the Site. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 2 of 15 TRC Project Number 564624.0000.0000 RESPONSE TO FEBRUARY 2024 UDEQ COMMENTS HEP’s responses to the Division’s February 1, 2024, comments to HEP’s November 2023 Work Plan are provided below. UDEQ Comment 1 Global Comment. The soil samples were screened against the Division of Environmental Response and Remediation (DERR), Leaking Petroleum Storage Tanks (LPST), Tier 1 Screening Criteria. In accordance with Utah Administrative Code R315-101 and as outlined in Section 5.2.7 of the Division’s Technical Guide to Risk Assessment (TGRA) (August 2, 2005 (utah.gov)) traditionally, hydrocarbon-impacted soils at sites contaminated by releases of petroleum fuels have been managed based on their total petroleum hydrocarbon (TPH) content. TPH refers to the total mass of hydrocarbons present without identifying individual compounds. In practice, TPH is defined by the analytical method that is used to measure the hydrocarbon content in contaminated media. Since the hydrocarbon extraction efficiency is not identical for each method, the same sample analyzed by different TPH methods will produce different TPH concentrations. The hazard and health risk assessments that are typically conducted to support risk management decisions at contaminated sites generally require some level of understanding of the hydrocarbon chemical composition present in the contaminated media. Traditional TPH measurement techniques, however, provide no specific information about the detected hydrocarbons. Because TPH is not a consistent entity, the assessment of health effects and development of toxicity values for mixtures of hydrocarbons are problematic. On that basis, the Division assesses risk from TPH by analyzing and assessing the individual chemical constituents rather than relying on TPH fraction data. Use of the Division of Environmental Response and Remediation (DERR) Initial Screening Levels (ISLs) and/or Tier 1 Screening Levels are not appropriate for determining closure under Utah Administrative Code R315-101. The soil screening criteria listed in the Page 4 Table should be revised to reflect appropriate United States Environmental Protection Agency (U.S. EPA) Regional Screening Levels (RSLs). HEP Response to UDEQ Comment 1 As requested, soil sample analytical results are screened against the United States Environmental Protection Agency (EPA) Regional Screening Levels (RSLs), including the residential soil RSLs and the protection of groundwater soil screening levels (SSLs) using a dilution attenuation factor (DAF) of 20. The RSLs are based on a target cancer risk of 1E-06 and UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 3 of 15 TRC Project Number 564624.0000.0000 a target hazard quotient of 1.0. In accordance with Utah Administrative Code R315-101-5(d)(3), the soil exposure interval applicable to residents is defined as the ground surface down to 10 feet below ground surface (bgs). Thus, the residential soil RSLs only apply to soil from the ground surface to a depth of 10 feet bgs. The residential soil RSLs are inclusive of ingestion, dermal contact, and inhalation of volatiles and particulates. When available, the protection of groundwater SSLs are based on maximum contaminant levels (MCLs). Otherwise, the protection of groundwater SSLs are risk-based. The EPA RSLs for benzene, toluene, ethylbenzene, and total xylenes (BTEX) and naphthalene are summarized below and are shown on Table 1. Contaminant Residential Soil RSL (mg/kg) Protection of Groundwater SSL (mg/kg)1 Applicable Soil Depths 0-10 feet bgs All Soil Depths Benzene 1.2 0.051 Toluene 4,900 13.8 Ethylbenzene 5.8 15.7 Xylenes 580 198 Naphthalene 2.0 0.0076 SSL = Soil Screening Level. 1EPA SSL with a UDEQ-approved dilution attenuation factor (DAF) of 20. There are no EPA RSLs for total petroleum hydrocarbons (TPH) gasoline range organics (GRO) and diesel range organics (DRO), so these constituents were not further evaluated. Based on the use of the EPA RSLs for BTEX and naphthalene, additional vertical and lateral delineation of hydrocarbon-affected soil was conducted in April 2024. At the instruction of the Division on April 9, 2024, supplemental soil samples were analyzed for volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs). As summarized below, the April 2024 delineation results indicate that hydrocarbon-affected soil at the Site has been vertically and laterally delineated to below the applicable EPA RSLs. The use of the EPA RSLs is incorporated into the revised remediation work plan provided below. UDEQ Comment 2 Page 2. The second to last bullet on this page indicates the lateral extent of contamination has been defined in all directions. However, naphthalene in SB-8 is above the residential RSL, indicating the lateral extent of impacts extends slightly farther to the west than shown on the figure. SB-13 is non-detect for naphthalene. While SB-04 was below the residential RSLs, there may be a data gap in the southwest corner of the site. SB-04 and SB-09 represent the southern UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 4 of 15 TRC Project Number 564624.0000.0000 part of the spill area, but do not reflect conditions farther west. An additional boring in the southwest area of the spill may be warranted. HEP Response to UDEQ Comment 2 At the request of the Division, an additional soil boring (SB-15) was advanced for lateral delineation at the southwest corner of the Site in April 2024. As summarized below, the April 2024 delineation results indicate that hydrocarbon-affected soil at the Site has been laterally delineated to below the EPA RSLs. UDEQ Comment 3 Page 2. The last bullet on this page states that the vertical extent of affected soils was delineated at borings SB-01 and SB-10, and the samples were clean at 4-5 feet below ground surface (bgs). It is noted that at the 4-5 sample depth for both borings, there were detects for all contaminants of concern, indicating the samples are not clean. Further, naphthalene was detected equal to the residential RSL in SB-01. Revise the text accordingly. HEP Response to UDEQ Comment 3 The September 2023 soil sample analytical results indicated that vertical delineation of BTEX and naphthalene to below EPA RSLs was not achieved at borings SB-01, SB-02, SB-03, SB-05, SB- 06, SB-07, SB-08, and SB-10. Additional vertical delineation of hydrocarbon-affected soil was conducted in April 2024. Five soil borings, including SB-01 (2), SB-03 (2), SB-06 (2), SB-07 (2), and SB-10 (2), were co-located with select September 2023 borings at strategic and accessible portions of the Site. The April 2024 delineation results indicate that the hydrocarbon-affected soil has been vertically delineated to below the applicable EPA RSLs and extends to a maximum depth of 21 feet bgs at boring SB-07 (1). The vertical extent of soil with COC concentrations above EPA RSLs was not delineated at September 2023 soil borings SB-02, SB-05, and SB-08 because these hand auger boring locations were either not accessible to the safe use of a drill rig (borings SB-02 and SB-08) or the proximity to other deeper soil borings where vertical delineation was accomplished using a drill rig (boring SB-05 is immediately adjacent to boring SB-10 (2)). Overall, the vertical extent of hydrocarbon-affected soil at the Site is delineated to below applicable EPA RSLs. The April 2024 delineation results are summarized below. UDEQ Comment 4 Page 3, Second Bullet. As noted in Comment No. 1, the Division does not use the DERR screening levels. Please revise the discussion of site data to include a comparison to RSLs. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 5 of 15 TRC Project Number 564624.0000.0000 HEP Response to UDEQ Comment 4 As requested, soil sample analytical results are screened against the EPA RSLs, including the residential soil RSLs and the protection of groundwater SSLs using a DAF of 20. The use of the EPA RSLs is incorporated into the revised remediation work plan presented below. UDEQ Comment 5 Page 3, Potential Exposure Pathways. The first bullet lists leaching to groundwater as likely closed. The rationale is mostly depth of groundwater. Defining the vertical extent of contamination is proposed. Please note that under R315-101 of the Utah Administrative Code, the soil-to-groundwater pathway, using soil-to-groundwater screening levels (SSLs) and a dilution attenuation factor (DAF) of 20 is required. As part of the post remedial report, ensure an SSL evaluation is included. It may be helpful to refer to Section 8.0 of the TGRA on how to conduct this assessment. HEP Response to UDEQ Comment 5 As requested, soil sample analytical results are screened against the EPA RSLs, including the protection of groundwater SSLs using a DAF of 20. The use of the EPA RSLs is incorporated into the revised remediation work plan presented below. UDEQ Comment 6 Page 3, Human Exposure Pathways and Vapor Intrusion. Please note that risk assessments conducted for the Division must follow Utah Administrative Code (UAC) R315-101. Additional guidance is available from the TGRA. HEP Response to UDEQ Comment 6 The potential exposure pathway evaluation presented below has been revised in accordance with the Technical Guide for Risk Assessment: Utah Administrative Code R315-101 (TGRA). UDEQ Comment 7 Page 4, Second Bullet. While leaching to groundwater may be incomplete, the post removal confirmation data must be compared to SSLs, to confirm the pathway is incomplete. HEP Response to UDEQ Comment 7 As requested, soil sample analytical results are screened against the EPA RSLs, including the protection of groundwater SSLs using a DAF of 20. The use of the EPA RSLs is discussed below and are incorporated into the Revised Remediation Work Plan. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 6 of 15 TRC Project Number 564624.0000.0000 UDEQ Comment 8 Page 5, First Bullet. While confirmation samples may include analysis for TPH, the Division will assess closure based on a risk assessment conducted using indictor compounds. Clarify the analytical methods proposed will be sufficient to assess residual levels of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) are appropriate. HEP Response to UDEQ Comment 8 VOCs and PAHs have been identified as the appropriate constituents of concern (COCs) for the Site based on the petroleum hydrocarbons released in August 2023 (gasoline and diesel). The April 2024 soil samples were analyzed for VOCs and PAHs via EPA Methods 8260 and 8270 SIM, respectively. As discussed below in the revised remediation work plan, the confirmation soil samples will also be analyzed for VOCs and PAHs. UDEQ Comment 9 Page 5, Phase 2. Clarify the criteria that will be used to assess if Phase 2 is needed. If confirmation data indicate levels above residential risk-based closure? HEP Response to UDEQ Comment 9 Excavation (Phase 1) will be conducted to a depth of 4 feet bgs in portions of the site that are accessible to mechanical excavation, while in-situ treatment (Phase 2) will be conducted in portions of the Site that are inaccessible to mechanical excavation and to treat affected soil beneath 4 feet bgs. Confirmation soil samples collected following excavation and/or in-situ treatment will be screened against the EPA RSLs. If confirmation soil sample analytical results exceed the EPA RSLs, then additional treatment and/or excavation may be required. UDEQ Comment 10 The Work Plan does not address ecological risk. Under UAC R315-101, either an ecological risk assessment must be conducted or a request for an ecological risk assessment waiver must be provided. Please refer to Section 9.0 of the TGRA. HEP Response to UDEQ Comment 10 Pursuant to Section 9.1 of the Technical Guide for Risk Assessment: Utah Administrative Code R315-101 (TGRA), an ecological waiver is being requested due to the environmental conditions at the Site. The UDEQ guidance states the following requirements are required for an ecological waiver: Environmental conditions at the site may be used to eliminate the need for ecological risk assessment and support an ecological waiver; these conditions include: UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 7 of 15 TRC Project Number 564624.0000.0000  The affected property is not a viable habitat;  The site cannot be used by potential ecological receptors as a habitat, and/or;  Complete or potentially complete exposure pathways do not exist due to prevailing conditions or property setting. The following information summarizes multiple lines of evidence for the Site which meet the requirements for an ecological waiver: • The affected property is not a viable habitat - The affected property includes the Site (a fenced, active valve station) and the low- lying areas directly north, east, and west of the Site fence line. The Site and the immediate Site vicinity are not considered a viable ecological habitat due to the presence of gravel on the ground surface, the absence of water resources and vegetation, the active industrial use of the Site, and the small area of impact, which is less than the typical home range for many of the upper trophic species that would be evaluated. • The site cannot be used by potential ecological receptors as a habitat - The Site is a fenced, active valve station and is not considered a viable ecological habitat. As shown on Figure 2, the Site is located immediately adjacent to N Highway 6 and west of Old Highway 50 in underdeveloped desert. There is no “high quality” ecological habitat in the Site vicinity. Photographs of the Site are included in Attachment A. - The nearest surface water bodies are three stormwater retention ponds located approximately 0.80 miles to the west/southwest of the Site (the stormwater ponds are permitted for industrial use and not considered viable ecological habitat and could not support potential eco receptor populations). The surface water/sediment pathway is incomplete. • Complete or potentially complete exposure pathways do not exist due to prevailing conditions or property setting - The exposure pathways for surface water/sediment and vapor intrusion are not complete due to the property setting, absence of on-Site receptors other than occasional facility personnel, and the absence of buildings at or near the Site. - The soil pathway is limited due to the prevailing conditions, as most of the spill was within a gravel area. The gravel area limits exposure to underlying soil. The spill was limited to one brief incident with limited potential for direct contact soil exposure. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 8 of 15 TRC Project Number 564624.0000.0000 In addition to the lines of evidence listed above regarding the lack of ecological habitat and completed exposure pathways, the anticipated remediation includes removal of 2,400 square feet of affected gravel and is estimated to include removal of 60 percent of the hydrocarbon- affected surface area (2,100 square feet), including the areas directly north, east, and west of the Site fence line. Due to the presence of critical infrastructure that precludes implementation of mechanical excavation at certain portions of the Site and the maximum depth of affected soil (21 feet bgs), an in-situ remediation product will be used to address remaining hydrocarbon- affected soil. Following in-situ remediation, the excavation will be backfilled with clean fill and covered with a new weed barrier and clean gravel. APRIL 2024 DELINEATION ACTIVITIES AND STATUS OF DELINEATION As discussed above, additional lateral and vertical delineation of hydrocarbon-affected soil was conducted in April 2024. A summary of the delineation activities and results is provided below. April 2024 Delineation Activities Additional delineation activities were completed on April 30, 2024, to determine the vertical and lateral extent of hydrocarbon-affected soil associated with the August 2023 release. TRC completed six soil borings using direct-push technology (DPT) drilling methods. Borings SB-01 (2), SB-03 (2), SB-06 (2), SB-07 (2), and SB-10 (2) were drilled to depths ranging from 25 to 30 feet bgs to delineate the vertical extent of hydrocarbon-affected soil. These borings were co- located with select September 2023 borings at strategic and accessible portions of the Site. Boring SB-15 was drilled to a depth of 10 feet bgs to delineate the lateral extent of hydrocarbon-affected soil to at the southwest portion of the Site. The soil boring locations are shown on Figure 3. The lithology was observed to consist of gravel fill at or near the ground surface; silty clay to a depth of 12 to 15 feet bgs; and fine sand to a depth of 30 feet bgs, the maximum depth investigated. No groundwater was observed in any of the soil borings. Hydrocarbon odor and/or elevated photo-ionization detector (PID) readings above 50 parts per million (ppm) were observed in the following borings: SB-01 (2) to a depth of 22 feet bgs; SB-03 (2) to a depth of 18 feet bgs; SB-06 (2) to a depth of 17 feet bgs; SB-07 (2) to a depth of 17 feet bgs; and SB-10 (2) to a depth of 20 feet bgs. No hydrocarbon odor and/or elevated PID readings were observed in boring SB-15. The soil boring logs are included in Attachment B. Soil samples were collected from each soil boring at select intervals based on the September 2023 assessment results, observations of potential hydrocarbon impact (i.e., odor), and PID readings. Five soil samples each were collected from borings SB-01 (2), SB-03 (2), SB-06 (2), SB- 07 (2), and SB-10 (2) while two soil samples were collected from boring SB-15. Additionally, one duplicate sample was collected from soil boring SB-03 (2) at a depth interval of 8-12 feet bgs. The soil samples were collected in laboratory-prepared containers, immediately placed on ice, UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 9 of 15 TRC Project Number 564624.0000.0000 and delivered to PACE Analytical in Mt. Juliet, Tennessee for laboratory analysis of VOCs by EPA Method 8260B and PAHs by EPA Method 8270C-SIM. The photographic log is included in Attachment A. The laboratory analytical reports are included in Attachment C. The boreholes were backfilled with hydrated bentonite chips after drilling. Investigation- derived waste (IDW) included soil cuttings and decontamination water. The IDW is currently stored at the Site in 55-gallon drums and will be transported to an off-Site disposal facility during planned remediation activities. April 2024 Delineation Results The April 2024 laboratory analytical results were compared to EPA RSLs, including the residential soil RSLs and the protection of groundwater SSLs using a DAF of 20. As shown on Table 1, VOCs and/or PAHs were detected above the EPA RSLs in samples collected from borings SB-01 (2), SB-03 (2), SB-06 (2), SB-07 (2), and SB-10 (2), including: BTEX; naphthalene (by EPA Methods 8260B and 8270C-SIM); 1,1,2-trichloroethane; 1,2,4-trimethylbenzene; 1,2,3- trimethylbenzene; 1,3,5-trimethylbenzene; 1-methylnaphthalene; and 2-methylnaphthalene. Table 1 also shows the September 2023 soil sample analytical results for BTEX and naphthalene. The vertical extent of soil samples with EPA RSL exceedances was delineated by underlying “clean” samples with COC concentrations below EPA RSLs as follows: in boring SB-01 (2) from 20-22 feet bgs; in boring SB-03 (2) from 18-25 feet bgs; in boring SB-06 (2) from 17.5-24.5 feet bgs; in boring SB-07 (2) from 23-25 feet bgs; and in boring SB-10 (2) from 17-23 feet bgs. As shown on Table 1, the majority of the hydrocarbon-affected soil with COC concentrations above EPA RSLs is in the upper 10 feet. Non-detect sample detection limits (SDLs) for several VOCs and PAHs exceeded the EPA RSLs in multiple samples. However, all the COCs with detected concentrations above EPA RSLs were vertically delineated by underlying samples with non-detect SDLs or detected concentrations below the EPA RSLs with the exception of naphthalene and 1-methylnaphthalene. Naphthalene is reported by both EPA Methods 8260B and 8270C-SIM. In each sample where there is a naphthalene non-detect SDL exceedance by one method, the non-detect SDL is resolved by the other method. For 1-methylnaphthalene, none of the non-detect SDLs were below the groundwater protection SSL, which is very low and could not be achieved by the laboratory method (EPA Method 8270C-SIM, which is the standard accepted industry method for this COC). The COCs with non-detect SDL exceedances were not detected in any sample at the Site except for naphthalene (EPA Methods 8260B and/or 8270C-SIM), 1,1,2-trichloroethane (which was not detected above EPA RSLs in any sample), and 1-methylnaphthalene. Laboratory Analytical Quality Assurance/Quality Control UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 10 of 15 TRC Project Number 564624.0000.0000 All samples were received at the correct temperature, in the proper containers, with the appropriate preservatives, and method and batch controls were applied by the analytical laboratory. A quality assurance/quality control (QA/QC) review was conducted on the May 10, 2024, analytical report (Pace PN L1732554) and May 21, 2024, analytical report (Pace PN L1736040). • Surrogate recoveries indicate results may have concentrations with a high bias for PAHs in SB-6 (2) 7.5-9.5’ and VOCs in SB-7 (2) 9-13’ and SB-10 (2) 8-14’. • Surrogate recoveries suggest results may have a low bias for PAHs in SB-1 (2) 5-10', SB-1 (2) 10-14', SB-3 (2) 5-8', SB-6 (2) 4.5-7.5', and SB-10 (2) 5-8'. • Samples initially designated for hold were analyzed on their last day of holding time; therefore, VOC concentrations in the May 21, 2024 report were flagged by the laboratory as “received past/too close to holding time expiration.” Based on the VOC concentrations from shallower intervals and internal laboratory QA/QC procedures reviewed, including surrogate recoveries, this laboratory flag regarding hold time is unlikely to alter the overall findings of this assessment. Status of Delineation The following conclusions are based on the results of the September 2023 and April 2024 delineation events: • The lateral extent of hydrocarbon-affected soil is delineated to the north by borings SB- 11 and SB-12; to the west by boring SB-14; to the south by borings SB-09 and SB-15; and to the east by boring SB-13. • The surface extent of the release is approximately 3,500 square feet and includes most of the Site (not including the southwest corner, which was not affected) and the low- lying areas directly north, east, and west of the Site fence line. • The vertical extent of hydrocarbon-affected soil is delineated by samples with COC concentrations below EPA RSLs in borings SB-01 (2), SB-03 (2), SB-04, SB-06 (2), SB-07 (2), SB-09, and SB-10 (2). The maximum depth of soil with COC concentrations above EPA RSLs is 19-21 feet bgs in boring SB-07 (2). The majority of the hydrocarbon-affected soil with COC concentrations above EPA RSLs is in the upper 10 feet. Potential Exposure Pathways The following assessment of exposure pathways is based on the results of the September 2023 and April 2024 delineation activities: 1) Leaching to groundwater o Open – To be resolved via Site remediation activities. Groundwater beneath the Site is anticipated at a depth of approximately 100 feet bgs. The vertical extent UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 11 of 15 TRC Project Number 564624.0000.0000 of soil with COC concentrations above EPA protection of groundwater SSLs has been delineated and extends to a maximum depth of 21 feet bgs. Based on the vertical delineation well above the anticipated depth of the uppermost groundwater-bearing unit beneath the Site, groundwater has not been affected by the August 2023 release. As proposed Site remediation activities will reduce soil COC concentrations to below the EPA protection of groundwater SSLs, there is no potential for future groundwater contamination. 2) Migration to a surface water o Closed – The nearest surface water bodies are three stormwater retention ponds located approximately 0.80 miles to the west/southwest of the Site. 3) Human exposure pathways through ingestion of soil, dermal contact with soil, inhalation of vapors, and particulates emitted by surficial soils (to depth of 10 feet) o Open – To be resolved via Site remediation activities. 4) Volatilization and upward migration of vapor from soil and potential indoor or outdoor inhalation of these emissions o Closed – Site soils will be remediated via excavation and/or in-situ treatment. Soils from ground surface to a depth of 10 feet bgs will be screened against the residential soil RSLs, which includes inhalation of volatiles and particulates. Soils deeper than 10 feet bgs do not pose a significant outdoor inhalation risk due to the anticipated dilution of volatilized COCs through the overlying soil burden. Regardless, soils deeper than 10 feet bgs will be remediation via in-situ treatment. In addition, there are no buildings at or adjacent to the Site and no inhabitable buildings planned for development at the Site; therefore, the indoor inhalation exposure pathway (vapor intrusion) is considered incomplete and is not a human health concern. REVISED REMEDIATION WORK PLAN The Site is an active, operating gas valve station with active service equipment within the extent of the affected soil. With the approval of the UDEQ, soil with COC concentrations above the applicable EPA RSLs will be addressed by a hybrid approach (i.e., excavation and in-situ treatment). Due to the presence of critical infrastructure that precludes implementation of mechanical excavation at certain portions of the Site and the maximum depth of affected soil (21 feet bgs), TRC will utilize an in-situ remediation product to address remaining hydrocarbon- affected soil. This approach is appropriate because: • The approach minimizes the potential risk posed to human health receptors while allowing the continued operation of the Site as an active valve station. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 12 of 15 TRC Project Number 564624.0000.0000 • This vertical extent of COC impacts has been delineated. The maximum depth of soil with COC concentrations above EPA RSLs is 19-21 feet bgs; this includes protection of groundwater SSLs with a DAF of 20. • There are no nearby surface water bodies or storm drains that would be affected by the August 2023 release. The nearest surface water bodies are three stormwater retention ponds located approximately 0.80 miles to the west/southwest of the Site. • There are no on-Site receptors other than occasional facility personnel, and there are no buildings at or adjacent the Site. The vapor intrusion pathway is incomplete. Notably, the majority of the affected shallow (upper 4 feet) soil will be mitigated by excavation and off-site disposal. Only affected soil in the immediate vicinity of critical infrastructure and deeper than 4 feet bgs will be treated via in-situ remediation. An excavation depth of 4 feet bgs will be utilized as this immediately resolves any potential direct exposure of sensitive receptors to Site COCs, while an excavation deeper than 4 feet bgs is considered not feasible and unsafe given the proximity to critical infrastructure. Additional details regarding the proposed remedial activities are provided below. Phase 1 – Shallow Soil Excavation in Accessible Areas of Site Hydrocarbon-affected soil in accessible portions of the Site will be mechanically excavated and removed from the Site to a depth of up to 4 feet bgs. Portions of the Site that are considered accessible are those that can be safely excavated via mechanical means without potentially damaging sensitive and active infrastructure. The total surface extent of the release area is approximately 3,500 square feet. The anticipated excavation area is depicted on Figure 3 and is estimated to include 60 percent of the hydrocarbon-affected surface area (2,100 square feet), including the areas directly north, east, and west of the Site fence line. Additional details regarding the proposed excavation activities are provided below. • The hydrocarbon-affected gravel (approximately 2,400 square feet) will be scraped from the Site surface. • All reasonable efforts will be made to excavate the greatest extent of affected soils that can be safely removed, via mini-excavator. A buffer of 2 feet must be kept from all on- Site equipment, pipelines, and utilities, which are shown on Figure 3. The area of anticipated excavation is shown on Figure 3; the final excavation extent may change based on conditions observed in the field, including unknown underground pipelines or utilities that are encountered during excavation. • Hydrocarbon-affected soils will be removed based on the results of the September 2023 and April 2024 delineation activities and may be laterally expanded until field screening activities yield indications of “clean” soil as indicated by field observations of potential hydrocarbon impact and photo-ionization detector (PID) readings. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 13 of 15 TRC Project Number 564624.0000.0000 • The maximum depth of the excavation will be 4 feet bgs; any remaining COCs above EPA RSLs will be treated via in-situ bioremediation. It is anticipated that the excavation in the southern portion of the Site (i.e., near boring SB-04) will only need to be extended to a depth of 1 foot bgs. The remaining excavation area will likely extend to 4 feet bgs based on the September 2023 and April 2024 delineation results. • Excavated soil will be transported to an off-Site landfill and disposed of as non- hazardous petroleum contaminated soils. • Floor and sidewall confirmation soil samples will be collected from select locations of the excavation, including at least five from the floor and five from the sidewalls. As additional treatment via in-situ bioremediation will be conducted, the floor samples will only be collected to document conditions along the excavation bottom prior to in-situ bioremediation. The soil samples will be immediately placed on ice and sent to a Utah- approved laboratory for analysis of VOCs and PAHs via EPA Methods 8260B and 8270C- SIM, respectively. The results will be screened against the applicable EPA RSLs. • Following application of the in-situ remediation product (Phase 2) along and beneath the excavation floor, the excavation will be backfilled with clean fill. Phase 2 – In-Situ Treatment of Remaining Affected Soil Affected soil that is inaccessible to mechanical excavation and/or deeper than 4 feet bgs will be addressed via in-situ remediation. This will ensure the safety of active, sensitive infrastructure at the Site while still reducing COC concentrations to below applicable EPA RSLs. It is anticipated that the entire affected area shown in Figure 3 will be treated using an in-situ remediation product following excavation activities but before backfilling. Additionally, and as needed based on the September 2023 and April 2024 delineation results, the proposed in-situ treatment product will be applied beneath the excavation floor to treat affected soil beneath 4 feet bgs. Due to the nature of in-situ remediation, which requires warmer temperatures to facilitate oxidation and/or aerobic bioremediation of contaminants, Phase 2 can only be implemented until the shallow soils at the Site reach a temperature of approximately 50 degrees Fahrenheit. Additional details regarding the proposed in-situ remediation activities are provided below. • The selected contractor will apply and/or inject a remediation product such as liquid Cool-Ox®, MicroBlaze®, or similar product to the remaining affected soil area that was not mechanically excavated. Cool-Ox® is a proprietary hydrogen peroxide-based oxidizing remediation technology that does not create heat or corrosion. MicroBlaze® is an environmentally friendly, microbial-based product for on-site treatment and remediation of oil and organic wastes. Application will likely be conducted using a hand sprayer. UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 14 of 15 TRC Project Number 564624.0000.0000 • In addition to spraying the excavation floor, a pressurized spraying wand will be inserted through the excavation floor to depths of up to 10 feet bgs to allow for injection of the remediation product. This injection will be conducted throughout the entire affected area with the exception of at the southern portion of the Site (i.e., near boring SB-04), which is not anticipated to require treatment beneath 1 foot bgs based on the September 2023 and April 2024 delineation results. Injection holes will be located as recommended by the remediation contractor to ensure sufficient injection of the remediation product. • The majority of the hydrocarbon-affected soil with COC concentrations above EPA RSLs is in the upper 10 feet. As discussed above, the pressurized spraying wand used to inject the remediation product is anticipated to achieve a depth of up to 10 feet bgs. Hydrocarbon-affected soil beneath 10 feet bgs (i.e., to a maximum depth of 21 feet bgs) will be treated via infiltration of the remediation product through the soil. • The remediation product will reduce COC concentrations for a period of up to 90 days, the anticipated minimum reaction timeframe, before confirmation soil samples will be collected from select areas of the treated soils. Confirmation soil samples will be collected using a hand auger and/or DPT drilling rig, likely in locations with existing pre- treatment soil analytical data to allow for comparison of COC concentrations. The soil samples will be immediately placed on ice and sent to a Utah-approved laboratory for analysis of VOCs and SVOCs via EPA Methods 8260B and 8270C-SIM, respectively. The results will be screened against the applicable EPA RSLs. • UDEQ will be notified upon receipt of the confirmation soil sample analytical results indicating hydrocarbon-affected soils have been sufficiently treated, or if additional in- situ treatments are necessary to achieve the Tier 1 closure criteria below EPA RSLs. Subsequent in-situ treatment applications and confirmation sampling may be necessary if the confirmation soil sample analytical results exceed the EPA RSLs. The Phase 1 (excavation) and Phase 2 (in-situ remediation) will happen consecutively and will be documented in a summary report. The report will include a summary of confirmation soil sample analytical results, maps depicting the final excavation and in-situ treatment areas, copies of waste manifests, copies of laboratory analytical reports, photographs documenting remediation activities, and recommended path forward. If confirmation soil sample analytical results indicate COC concentrations are below EPA RSLs, a request for closure will be submitted. If confirmation soil sample analytical results indicate COC concentrations are above EPA RSLs, additional action will be proposed. SCHEDULE AND CLOSING Based on the results of the delineation activities and the ecological risk evaluation, we are confident the proposed remediation approach will minimize the potential risk posed to human health and environmental receptors while allowing the continued operation of the Site as an UDEQ Environmental Incident Report No. 16594 Lynndyl Station, Juab County, Utah August 12, 2024 Page 15 of 15 TRC Project Number 564624.0000.0000 active valve station. HEP will complete Phase 1 (excavation) and Phase 2 (in-situ remediation) activities within 90 days of receiving UDEQ-approval of this letter (weather permitting). Confirmation soil sampling activities will be conducted in the non-excavated affected soil within 120 days following the completion of Phase 2. We appreciate your attention to this matter. With any questions, please don’t hesitate to contact Brandon Cochran of TRC at 970-305-7410 or bcochran@trccompanies.com or Melanie Nolan of HEP at 214-605-8303 or melanie.nolan@hfsinclair.com. Sincerely, Brandon Cochran Senior Project Manager Figures and Tables Figure 1 – Site Location Figure 2 – Surrounding Property Map Figure 3 – Site Plan Table 1 – Soil Sample Analytical Soil Results - Detections Attachments Attachment A – Photographic Log Attachment B – Soil Boring Logs Attachment C – Laboratory Analytical Reports Figures Holly Energy Partners, Operating, L.P. Lynndyl StationLynndyl, Utah 1526 COLE BOULEVARD B UILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 CONVUT WY DATE: APPROVED BY: CHECKED BY: DRAWN BY:PROJ. NO.: FILE: TITLE: PROJECT: 564624_LYNNDYL COORDINATE SYSTEM: NAD 1983 STATEPLANE UTAH CENTRAL FIPS 4302 FEET; MAP ROTATION: 0 -- SAVED BY: ACLINE ON 3/8/2024, 10:39:40 AM; FILE PATH: T:\1-PROJECTS\HOLLY_ENERGY_PARTNERS\564624_LYNNDYL\2-APRX\564624_LYNNDYL.APRX; LAYOUT NAME: 564624 FIGURE 2 SURROUNDING PROPERTY MAP F 1:15,000 1" = 1,250' 0 625 1,250FEET BASE MAP: GOOGLE EARTH AERIAL IMAGERY DATA SOURCES: TRC MARCH 2024 B. COCHRAN B. TRACY A. CLINE FIGURE 2 564624 SURROUNDING PROPERTY MAP HOLLY ENERGY PARTNERS, OPERATING, L.P LYNNDYL, STATION LYNNDYL, UTAH SITE BOUNDARY N H i g h w a y 6 6 N H i g h w a y 6 6 6 N H i gh w a y6 N H i g h w a y 6 UNDERDEVELOPED DESERT UNDERDEVELOPED DESERT AG FIELDS RETENTION PONDS UNDERDEVELOPED DESERT AG FIELDS OLD H W Y 5 0 SITE LOCATION LIVESTOCK STRUCTURES CONVUT WY SB7 02 SB6 2 SB3 2 SB1 2 SB15 SB10 2 SB01 SB03 SB04 SB05 SB06SB07 SB09 SB10 SB12 SB02 SB14 SB08 SB13 SB11 LEGEND APRIL 2024 SOIL BORING LOCATION SEPTEMBER 2023 SOIL BORING LOCATION ELECTRICAL LINE FUEL LINE SITE BOUNDARY SURFACE EXTENT OF AFFECTED SOIL PROPOSED EXTENT OF EXCAVATION DATE: APPROVED BY: CHECKED BY: DRAWN BY:PROJ. NO.: FILE: TITLE: PROJECT: 564624_LYNNDYLCO O R D I N A T E S Y S T E M : N A D 1 9 8 3 S T A T E P L A N E U T A H C E N T R A L F I P S 4 3 0 2 F E E T ; M A P R O T A T I O N : 0 - - S A V E D B Y : A C L I N E O N 7 / 8 / 2 0 2 4 , 1 9 : 4 0 : 4 7 P M ; F I L E P A T H : T : \ 1 - P R O J E C T S \ H O L L Y _ E N E R G Y _ P A R T N E R S \ 5 6 4 6 2 4 _ L Y N N D Y L \ 2 - A P R X \ 5 6 4 6 2 4 _ L Y N N D Y L . A P R X ; L A Y O U T N A M E : 5 6 4 6 2 4 F I G U R E 1 S O I L D A T A JULY 2024 1526 COLE BOULEVARD BUI L DING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 F 1:180 1" = 15' 0 7.5 15 FEET BASE MAP: GOOGLE EARTH AERIAL IMAGERY, 8/2019 DATA SOURCES: TRC H. HERR B. TRACY A. CLINE FIGURE 3 564624 SITE PLAN HOLLY ENERGY PARTNERS, OPERATING, L.P LYN N DYL, STATION LYNNDYL, UTAH Tables Table 1. Summary of Soil Analytical Results - Detections Holly Energy Partners - Operating, L.P. Lynndyl Station, Millard Station, Utah Soil Sample ID Sample Date Sample Depth (feet) Boring Type ACETONE BENZENE N-BUTYLBENZENE SEC-BUTYLBENZENE TERT-BUTYLBENZENE 4-CHLOROTOLUENE ETHYLBENZENE ISOPROPYL BENZENE 4-METHYL-2- PENTANONE (MIBK)NAPHTHALENE N-PROPYL BENZENE TOLUENE 1,1,2-TRICHLORO- ETHANE 1,2,4-TRIMETHYL- BENZENE 1,2,3-TRIMETHYL- BENZENE 1,3,5-TRIMETHYL- BENZENE XYLENES, TOTAL BENZO(K) FLUORANTHENE CHRYSENE FLUOR-ANTHENE FLUORENE INDENO(1,2,3- CD)PYRENE NAPHTHALENE PYRENE 1-METHYL- NAPHTHALENE 2-METHYL- NAPHTHALENE 70000 1.2 3900 7800 7800 1600 5.8 1900 33000 2.0 3800 4900 1.1 300 340 270 580 11 110 2400 2400 1.1 2.0 1800 0.18 240 0.026 0.051 64 118 32 4.80 15.7 14.8 28 0.0076 24 13.8 0.032 1.62 1.62 1.74 198 58 180 1780 108 19.6 0.0076 260 0.00066 3.80 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8260B 8270C-SIM 8270C-SIM 8270C-SIM 8270C-SIM 8270C-SIM 8270C-SIM 8270C-SIM 8270C-SIM 8270C-SIM SB-01-1-2 09/06/2023 1-2 HA NA 0.853 NA NA NA NA 24.4 NA NA 9.28 NA 46.0 NA NA NA NA 216 NA NA NA NA NA NA NA NA NA SB-01-4-5 09/06/2023 4-5 HA NA 0.0693 NA NA NA NA 4.27 NA NA 2.00 NA 7.04 NA NA NA NA 37.3 NA NA NA NA NA NA NA NA NA SB-1 (2) 5-10'04/30/2024 5-10 DPT <0.0580 0.908 <0.00834 0.0535 <0.00310 <0.000715 1.43 0.103 <0.00362 0.14 0.389 9.02 <0.000948 3.1 0.707 1.02 8.96 0.00955 0.024 0.252 0.0136 0.035 0.215 <0.00580 0.215 0.366 SB-1 (2) 10-14'04/30/2024 10-14 DPT <1.24 1.10 <0.179 0.137 <0.0665 0.261 2.90 0.222 <0.0777 0.314 1.16 17.9 <0.0203 8.69 2.05 2.57 23.9 <0.00284 0.0375 0.336 0.0162 0.0413 0.336 <0.00584 0.283 0.469 SB-1 (2) 14-20'04/30/2024 14-20 DPT 3.25 1.19 <0.138 4.05 <0.0553 <0.0553 6.48 1.78 <0.276 <0.0539 3.48 71.4 1.77 84.1 18.7 18 199 <0.00714 <0.00714 <0.00714 0.445 <0.00714 3.42 0.37 2.62 4.08 SB-1 (2) 20-22'04/30/2024 20-22 DPT 0.107 <0.000665 <0.0178 <0.0178 <0.00712 <0.00712 <0.00105 <0.00356 <0.0356 <0.00695 <0.00712 0.034 <0.00356 0.0133 0.00555 0.00676 0.0208 <0.00725 <0.00725 <0.00725 <0.00725 <0.00725 <0.00493 <0.00725 <0.0242 <0.0242 SB-1 (2) 25-30'04/30/2024 25-30 DPT 0.0471 0.000773 <0.0145 <0.0145 <0.00580 <0.00580 0.00334 <0.00290 <0.0290 <0.00566 <0.00580 0.0354 <0.00290 0.00982 0.00262 0.00474 0.0315 <0.00644 <0.00644 <0.00644 <0.00644 <0.00644 <0.00438 <0.00644 <0.0215 <0.0215 SB-02-0-1 09/06/2023 0-1 HA NA <0.0272 NA NA NA NA 2.85 NA NA 3.00 NA 1.06 NA NA NA NA 22.4 NA NA NA NA NA NA NA NA NA SB-02-3-4 09/06/2023 3-4 HA NA <0.0127 NA NA NA NA 0.0665 NA NA 0.193 NA <0.0636 NA NA NA NA 0.438 NA NA NA NA NA NA NA NA NA SB-03-0-1 09/06/2023 0-1 HA NA 0.639 NA NA NA NA 62.8 NA NA 12.0 NA 104 NA NA NA NA 404 NA NA NA NA NA NA NA NA NA DUP-01 (SB-03-0-1)09/06/2023 0-1 HA NA <0.0559 NA NA NA NA 22.6 NA NA 10.6 NA 14.5 NA NA NA NA 219 NA NA NA NA NA NA NA NA NA SB-03-3-4 09/06/2023 3-4 HA NA 3.17 NA NA NA NA 75.7 NA NA 13.2 NA 190 NA NA NA NA 603 NA NA NA NA NA NA NA NA NA SB-3 (2) 5-8'04/30/2024 5-8 DPT <0.0625 0.20 0.336 0.131 <0.00334 <0.000771 1.12 0.136 <0.00390 0.136 0.533 4.93 <0.00102 3.32 0.846 0.841 8.2 <0.00269 <0.00290 <0.00284 <0.00256 <0.00226 0.189 0.0241 0.224 0.328 SB-3 (2) 8-12'04/30/2024 8-12 DPT <0.0620 0.0246 0.0725 0.0391 <0.00331 <0.000764 0.177 0.026 <0.00387 0.0594 0.115 0.557 <0.00101 0.834 0.248 0.226 1.56 <0.00269 <0.00290 <0.00284 <0.00256 <0.00226 0.0406 0.00663 0.050 0.0773 SB-3 (2) 8-12-D 04/30/2024 8-12 DPT <0.0365 0.012 0.0469 0.0161 <0.00195 <0.000450 0.107 0.0157 <0.00228 0.0353 0.0673 0.31 <0.000597 0.52 0.149 0.14 0.913 NA NA NA NA NA NA NA NA NA SB-3 (2)12-18'04/30/2024 12-18 DPT <0.450 <0.00420 <0.112 0.308 <0.0450 <0.0450 0.505 0.223 <0.225 <0.0438 0.732 0.73 <0.0225 7.33 2.59 2.61 12 <0.00628 <0.00628 <0.00628 0.309 <0.00628 2.91 0.25 1.99 3.09 SB-3 (2) 18-25'04/30/2024 18-25 DPT <0.0557 <0.000520 <0.0139 <0.0139 <0.00557 <0.00557 <0.000821 <0.00279 <0.0279 <0.00544 <0.00557 0.00399 <0.00279 0.0118 0.00518 0.00645 0.0143 <0.00629 <0.00629 <0.00629 <0.00629 <0.00629 <0.00428 <0.00629 <0.0210 <0.0210 SB-3 (2) 25-30'04/30/2024 25-30 DPT <0.0714 <0.000667 <0.0178 <0.0178 <0.00714 <0.00714 <0.00105 <0.00357 <0.0357 <0.00697 <0.00714 0.00904 <0.00357 0.0104 0.00317 0.00637 0.0194 <0.00720 <0.00720 <0.00720 <0.00720 <0.00720 <0.0240 <0.00720 <0.0240 <0.0240 SB-04-0-1 09/06/2023 0-1 HA NA 0.0278 NA NA NA NA 0.0407 NA NA 0.401 NA 0.407 NA NA NA NA 0.248 B NA NA NA NA NA NA NA NA NA SB-04-3-4 09/06/2023 3-4 HA NA <0.00137 NA NA NA NA <0.00342 NA NA <0.0171 NA <0.00684 NA NA NA NA <0.00889 NA NA NA NA NA NA NA NA NA SB-05-1-2 09/06/2023 1-2 HA NA 0.195 NA NA NA NA 3.43 NA NA 4.01 NA 6.57 NA NA NA NA 29.0 NA NA NA NA NA NA NA NA NA SB-05-3-4 09/06/2023 3-4 HA NA 0.023 NA NA NA NA 3.29 NA NA 3.60 NA 1.59 NA NA NA NA 24.9 NA NA NA NA NA NA NA NA NA SB-06-0-1 09/06/2023 0-1 HA NA 0.0645 NA NA NA NA 2.17 NA NA 4.42 NA 2.92 NA NA NA NA 14.0 NA NA NA NA NA NA NA NA NA SB-06-2-3 09/06/2023 2-3 HA NA 0.0313 NA NA NA NA 3.76 NA NA 5.99 NA 1.90 NA NA NA NA 14.2 NA NA NA NA NA NA NA NA NA SB-6 (2) 4.5-7.5'04/30/2024 4.5-7.5 DPT <0.0652 0.00918 0.286 0.11 <0.00348 <0.000804 0.164 0.0637 <0.00407 0.163 0.216 0.17 <0.00107 1.21 0.537 0.334 1.06 <0.00266 <0.00287 <0.00281 <0.00254 <0.00224 0.214 0.0591 0.354 0.55 SB-6 (2) 7.5-9.5'04/30/2024 7.5-9.5 DPT <0.0620 0.00292 0.323 0.163 <0.00331 <0.000764 0.147 0.0827 <0.00387 0.161 0.299 0.0895 <0.00101 1.60 0.759 0.467 1.32 <0.00262 <0.00282 <0.00276 <0.00250 <0.00220 <0.00497 0.0259 0.133 0.106 SB-6 (2) 12.5-17.5'04/30/2024 12.5-17.5 DPT <0.475 <0.00444 <0.119 <0.119 0.142 <0.0475 0.0502 0.0223 <0.237 <0.0463 0.0584 0.135 <0.0237 0.922 0.361 0.266 0.695 <0.00648 <0.00648 <0.00648 0.0106 <0.00648 <0.00441 0.0265 0.0963 0.152 SB-6 (2) 17.5-24.5'04/30/2024 17.5-24.5 DPT 0.095 0.00655 <0.0170 <0.0170 <0.00682 <0.00682 0.00494 <0.00342 <0.0342 <0.00666 <0.00682 0.0851 <0.00342 0.0143 0.00648 0.00485 0.0433 <0.00631 <0.00631 <0.00631 <0.00631 <0.00631 <0.00429 <0.00631 <0.0210 <0.0210 SB-6 (2) 24.5-29.5'04/30/2024 24.5-29.5 DPT 0.045 <0.000529 <0.0142 <0.0142 <0.00567 <0.00567 <0.000836 <0.00283 <0.0283 <0.00553 <0.00567 0.0181 <0.00283 0.00576 0.00229 0.00357 0.0125 <0.00634 <0.00634 <0.00634 <0.00634 <0.00634 <0.00431 <0.00634 <0.0211 <0.0211 SB-07-0-1 09/06/2023 0-1 HA NA 0.0145 NA NA NA NA 2.00 NA NA 5.99 NA 1.37 NA NA NA NA 17.8 NA NA NA NA NA NA NA NA NA SB-07-2-3 09/06/2023 2-3 HA NA 0.0407 NA NA NA NA 3.15 NA NA 6.75 NA 2.63 NA NA NA NA 29.1 NA NA NA NA NA NA NA NA NA SB-7 (2) 4-9'04/30/2024 4-9 DPT <0.0613 0.0042 0.178 0.0991 0.00376 <0.000756 0.0469 0.0517 <0.00383 0.338 0.124 0.0973 <0.00100 0.38 0.724 0.534 0.635 <0.00265 <0.00286 <0.00279 0.00477 <0.00223 0.0252 0.00887 0.0407 0.0704 SB-7 (2) 9-13'04/30/2024 9-13 DPT <0.0620 0.00321 0.164 0.0985 <0.00331 <0.000765 0.112 0.0557 <0.00387 0.348 0.163 0.119 <0.00101 1.60 0.714 0.528 1.33 <0.00269 <0.00290 <0.00284 0.00477 <0.00226 0.0251 0.00889 0.0389 0.0568 SB-7 (2) 13-17'04/30/2024 13-17 DPT <0.0812 <0.000758 0.0291 0.00834 <0.00812 <0.00812 0.00865 0.00523 0.018 0.0414 0.0141 0.0179 <0.00406 0.196 0.0842 0.0601 0.0685 <0.00760 <0.00760 <0.00760 0.0117 <0.00760 <0.00517 0.0287 0.12 0.167 SB-7 (2) 19-21'04/30/2024 19-21 DPT <0.561 0.00541 <0.140 0.416 <0.0561 <0.0561 0.313 <0.0280 <0.280 <0.0547 0.43 0.275 <0.0280 6.20 2.89 1.93 2.79 <0.00710 <0.00710 <0.00710 0.547 <0.00710 <0.00483 1.34 2.69 3.90 SB-7 (2) 23-25'04/30/2024 23-25 DPT <0.0518 <0.000483 <0.0129 <0.0129 <0.00518 <0.00518 <0.000763 <0.00259 <0.0259 <0.00505 <0.00518 0.0118 <0.00259 <0.00518 <0.00518 <0.00518 <0.000911 <0.00609 <0.00609 <0.00609 <0.00609 <0.00609 <0.00414 <0.00609 <0.0203 <0.0203 SB-08-2-3 09/06/2023 2-3 HA NA 0.247 NA NA NA NA 5.52 NA NA 6.77 NA 9.72 NA NA NA NA 36.7 NA NA NA NA NA NA NA NA NA SB-08-3-4 09/06/2023 3-4 HA NA 0.090 NA NA NA NA 2.23 NA NA 2.45 NA 4.85 NA NA NA NA 14.4 NA NA NA NA NA NA NA NA NA SB-09-1-2 09/06/2023 1-2 HA NA <0.00128 NA NA NA NA <0.00320 NA NA <0.0160 NA <0.00639 NA NA NA NA <0.00831 NA NA NA NA NA NA NA NA NA SB-10-2-3 09/06/2023 2-3 HA NA 0.0484 NA NA NA NA 4.93 NA NA 3.19 NA 2.42 NA NA NA NA 29.6 NA NA NA NA NA NA NA NA NA SB-10-4-5 09/06/2023 4-5 HA NA 0.125 NA NA NA NA 6.75 NA NA 4.48 NA 4.81 NA NA NA NA 46.2 NA NA NA NA NA NA NA NA NA SB-10 (2) 5-8'04/30/2024 5-8 DPT <0.0572 0.0809 0.614 0.246 <0.00306 <0.000705 0.713 0.149 <0.00357 0.343 0.501 1.55 <0.000935 2.57 1.11 0.823 4.83 <0.00267 <0.00288 <0.00282 0.0515 <0.00225 0.264 0.0567 0.39 0.571 SB-10 (2) 8-14'04/30/2024 8-14 DPT <0.0575 0.091 0.929 0.39 0.00519 <0.000708 0.905 0.231 <0.00359 0.491 0.759 1.78 <0.000940 3.51 1.67 1.25 6.66 <0.00277 <0.00299 <0.00292 0.00559 <0.00233 0.0278 0.00555 0.033 0.0548 SB-10 (2) 14-17'04/30/2024 14-17 DPT <1.16 0.0846 <0.290 2.83 <0.116 <0.116 6.25 2.01 <0.580 <0.113 6.22 8.07 <0.0580 30.3 12.8 9.08 41.8 <0.00641 <0.00641 <0.00641 0.631 <0.00641 <0.00436 0.596 3.89 5.91 SB-10 (2) 17-23'04/30/2024 17-23 DPT <0.0772 <0.000721 <0.0193 <0.0193 <0.00772 <0.00772 <0.00114 <0.00386 <0.0386 <0.00754 <0.00772 0.00664 <0.00386 0.013 0.00757 0.0053 <0.00136 <0.00763 <0.00763 <0.00763 <0.00763 <0.00763 <0.00519 <0.00763 <0.0254 <0.0254 SB-10 (2) 23-25'04/30/2024 23-25 DPT 0.0604 <0.000488 <0.0131 <0.0131 <0.00523 <0.00523 <0.000770 <0.00261 <0.0261 <0.00510 <0.00523 0.0175 <0.00261 0.00454 0.0022 <0.00523 <0.000920 <0.00611 <0.00611 <0.00611 <0.00611 <0.00611 <0.00416 <0.00611 <0.0204 <0.0204 SB-11-1-2 09/06/2023 1-2 HA NA <0.00115 NA NA NA NA <0.00287 NA NA <0.0143 NA <0.00573 NA NA NA NA <0.00745 NA NA NA NA NA NA NA NA NA SB-12-1-2 09/06/2023 1-2 HA NA <0.00120 NA NA NA NA <0.00300 NA NA <0.0150 NA <0.00601 NA NA NA NA <0.00781 NA NA NA NA NA NA NA NA NA SB-13-1-2 09/06/2023 1-2 HA NA <0.00120 NA NA NA NA <0.00301 NA NA <0.0151 NA <0.00602 NA NA NA NA <0.00783 NA NA NA NA NA NA NA NA NA SB-14-1-2 09/06/2023 1-2 HA NA <0.00153 NA NA NA NA <0.00382 NA NA <0.0191 NA <0.00765 NA NA NA NA <0.00994 NA NA NA NA NA NA NA NA NA SB-15-0-1 04/30/2024 0-1 DPT <0.0516 <0.000661 <0.00743 <0.00407 <0.00276 <0.000636 <0.00104 <0.000601 <0.00322 <0.00690 <0.00134 0.00481 <0.000844 <0.00223 <0.00223 <0.00283 0.00358 <0.00255 <0.00275 <0.00269 <0.00243 <0.00215 <0.00484 <0.00237 <0.00532 <0.00506 SB-15-2-4 04/30/2024 2-4 DPT <0.0553 <0.000708 <0.00796 <0.00437 <0.00296 <0.000682 0.00211 <0.000644 <0.00346 <0.00740 <0.00144 0.00634 <0.000905 <0.00240 <0.00240 <0.00303 0.00528 <0.00267 <0.00288 <0.00282 <0.00254 <0.00225 <0.00506 <0.00248 <0.00557 <0.00530 Notes: All sample laboratory results are in milligrams per kilogram (mg/kg). Only detections shown. See laboratory analytical reports for full (non-detect) results. HA = Hand auger. DPT = Direct-Push Technology drill rig. NA = Not analyzed. B = The same analyte is found in the associated blank. RSL = United States Environmental Protection Agency Regional Screening Level. SSL = Soil Screening Level. DAF - Dilution Attenuation Factor (DAF). Blue Highlighting = Detected concentration exceeds applicable RSL(s). Yellow Highlighting = Non-detect sample detection limit exceeds applicable RSL(s). RSLs based on target cancer risk of 1E-06 and target hazard quotient of 1.0. Protection of groundwater SSLs based on DAF of 20. Risk-based SSL shown unless maximum contaminant level-based SSL is available (i.e., for benzene, toluene, ethylbenzene, xylenes, and 1,1,2-trichlorethane). Resident RSL applies to upper 10 feet and includes ingestion, dermal contact, and inhalation of volatiles and particulates. All Soil: Protection of Groundwater SSL, DAF 20 (mg/kg) EPA Analytical Method 0-10 feet bgs: Resident SSL (mg/kg) Attachment A Photographic Log 1 Photograph Log Client Name: Site Location: Project No.: Holly Energy Partners Lynndyl Station, Juab County, Utah (39.568301, – 112.343739) 564624.0000.0000 Photo No. Date 1 September 6, 2023 Description: Looking southwest toward the highway from the northeast corner of the Site. Staining observed along the north and east facing fences. Photo No. Date 2 September 6, 2023 Description: Looking east from the northwest corner of Site. Staining observed along the north facing fence. There were four total soil borings advanced along the outside of the northern fence. 2 Photograph Log Client Name: Site Location: Project No.: Holly Energy Partners Lynndyl Station, Juab County, Utah (39.568301, – 112.343739) 564624.0000.0000 Photo No. Date 3 September 6, 2023 Description: Looking north from the station’s western gate. Staining observed up to the driveway. Two soil borings were advanced in this area, one within the area of staining and one just outside. Photo No. Date 4 September 6, 2023 Description: Landscape lining was identified beneath the gravel within the perimeter of the Site. Landscape appeared in good condition and permeable. 3 Photograph Log Client Name: Site Location: Project No.: Holly Energy Partners Lynndyl Station, Juab County, Utah (39.568301, – 112.343739) 564624.0000.0000 Photo No. Date 5 April 30, 2024 Description: Hydro-excavation of soil boring SB-6 (2) 4 Client Name: Site Location: Project No.: Holly Energy Partners Lynndyl Station, Juab County, Utah (39.568301, – 112.343739) 564624.0000.0000 Photo No. Date 6 April 30, 2024 Description: Hydro-excavation of soil boring SB-1 (2) Photo No. Date 7 April 30, 2024 Description: Installation of soil boring SB-1 (2) 5 Client Name: Site Location: Project No.: Holly Energy Partners Lynndyl Station, Juab County, Utah (39.568301, – 112.343739) 564624.0000.0000 Photo No. Date 8 April 30, 2024 Description: Installation of soil boring SB-15 Attachment B Soil Boring Logs PAGE _______ OF _______ SB-1 (2) LOCATION:SHEET 1 OF SURFACE ELEV.: N:E:DATE STARTED: 4/30/2024 DATE COMPLETED: 4/30/2024 % Hydrovac to 5', no soil recovery Silty clay, hydrocarbon odor Silty clay, hydrocarbon odor Fine Sand @ 14' Fine sand, strong hydrocarbon odor Fine sand, slight odor Fine sand, no odor Fine sand, no odor Completed soil boring @ 30' bgs 10.0 5.0 71.2 N/A Sample: 5-10' @ 1400 Sample: 10-14' @ 1405 VISUAL CLASSIFICATION AND OBSERVATIONS PACIFIC WEST DEPTH LOG OF SOIL BORING LOGGED BY: PROJECT NUMBER: SOIL BORING ID: Center PROJECT NAME: Lynndyl Release 564624.0000.0000 B. Cochran TYPE BLOWS PID BORING DIAMETER GEOPROBE 6610 DEPTH TO WATER DEPTH TO BOTTOMTIMEDATE 35.0 25.0 DIRECT PUSH DRILL RIG 3-INCH DRILLING METHOD FIRST OCCURRENCE: WATER LEVEL OBSERVATIONS 40.0 Sample: 25-30' @ 1424 30.0 322 1076 2.7 6.8 3.2 20.0 PROJECT LOCATION: Lynndyl, UT Substation DRILLED BY:DRILLER NAME: NO. Sample: 20-22' @1413 15.0 Sample: 22-25' @1419 Sample: 14-20' @1411 COMMENT REVISED 06/2011 PAGE _______ OF _______ SB-3 (2) LOCATION:SHEET 1 OF SURFACE ELEV.: N:E:DATE STARTED: 4/30/2024 DATE COMPLETED: 4/30/2024 % Hydrovac to 5', no soil recovery Silty clay, hydrocarbon odor Silty clay, hydrocarbon odor Fine sand, hydrocarbon odor until 18' Fine sand, no odor Fine sand, no odor Completed soil boring @ 30' bgs 1.1 1.1 20.0 PROJECT LOCATION: Lynndyl, UT Substation DRILLED BY:DRILLER NAME: NO. Sample: 18-25' @1458 15.0 COMMENT N/A 40.0 Sample: 25-30' @ 1502 30.0 DIRECT PUSH DRILL RIG 3-INCH DRILLING METHOD FIRST OCCURRENCE: WATER LEVEL OBSERVATIONS BORING DIAMETER GEOPROBE 6610 DEPTH TO WATER DEPTH TO BOTTOMTIMEDATE 35.0 25.0 VISUAL CLASSIFICATION AND OBSERVATIONS PACIFIC WEST DEPTH LOG OF SOIL BORING LOGGED BY: PROJECT NUMBER: SOIL BORING ID: East PROJECT NAME: Lynndyl Release 564624.0000.0000 B. Cochran TYPE BLOWS PID 10.0 5.0 322 577 Sample: 12-18' @1454 Sample: 8-12' @1450 Sample: 5-8' @1437 276 REVISED 06/2011 PAGE _______ OF _______ SB-6 (2) LOCATION:SHEET 1 OF SURFACE ELEV.: N:E:DATE STARTED: 4/30/2024 DATE COMPLETED: 4/30/2024 % Hydrovac to 4.5', no soil recovery Silty clay, hydrocarbon odor Silty clay , hydrocarbon odor Fine sand, hydrocarbon odor Fine sand, slight hydrocarbon odor Fine sand, no hydrocarbon odor Fine sand, no hydrocarbon odor Fine sand, no hydrocarbon odor Completed soil boring @ 29.5' bgs 6.7 N/A Sample: 7.5-9.5' @1056 Sample: 9.5-12.5' @1104 53.4 41.8 Sample: 4.5-7.5' @1047 58.8 10.0 5.0 3.8 Sample: 17.5-24.5' @1118 20.0 15.0 30.0 Sample: 12.5-17.5' @1110 1.3 PROJECT LOCATION: Lynndyl, UT Substation DRILLED BY:DRILLER NAME: NO. TYPE DATE 35.0 25.0 DIRECT PUSH DRILL RIG 3-INCH DRILLING METHOD FIRST OCCURRENCE: WATER LEVEL OBSERVATIONS 40.0 TIME BORING DIAMETER GEOPROBE 6610 Sample: 24.5-29.5' @1127 DEPTH TO WATER DEPTH TO BOTTOM COMMENTVISUAL CLASSIFICATION AND OBSERVATIONS PACIFIC WEST DEPTHBLOWS PID LOG OF SOIL BORING LOGGED BY: PROJECT NUMBER: SOIL BORING ID: NE Outside Fence PROJECT NAME: Lynndyl Release 564524.0000.0000 B. Cochran REVISED 06/2011 PAGE _______ OF _______ SB-7 (2) LOCATION:SHEET 1 OF SURFACE ELEV.: N:E:DATE STARTED: 4/30/2024 DATE COMPLETED: 4/30/2024 % Hydrovac to 4', no soil recovered Silty clay, hydrocarbon odor Silty clay, hydrocarbon odor Fine sand, hydrocarbon odor Fine sand, slight odor Fine sand, no odor Fine sand to sandy loam, light odor Fine sand to sandy loam, moist, no odor Find sand to sandy loam, moist, no odor Completed soil boring @ 25' bgs 0.3 13.8 103 1810 0.6 54.2 0.1 Sample: 13-17' @1215 20.0 PROJECT LOCATION: Lynndyl, UT Substation DRILLED BY:DRILLER NAME: NO. DATE 35.0 25.0 DIRECT PUSH DRILL RIG 3-INCH DRILLING METHOD FIRST OCCURRENCE: WATER LEVEL OBSERVATIONS 15.0 Sample: 21-23' @1235 Sample: 23-25' @1240 Sample: 17-19' @1227 Sample: 19-21' @1230 40.0 30.0 DEPTH TO WATER DEPTH TO BOTTOMTIME BORING DIAMETER GEOPROBE 6610 COMMENTVISUAL CLASSIFICATION AND OBSERVATIONS PACIFIC WEST DEPTH LOG OF SOIL BORING LOGGED BY: PROJECT NUMBER: SOIL BORING ID: PROJECT NAME: Lynndyl Release 564624.0000.0000 B. Cochran Sample: 9-13' @1210 Sample: 4-9' @1203 TYPE BLOWS PID 10.0 5.076.8 REVISED 06/2011 PAGE _______ OF _______ SB-10 (2) LOCATION:SHEET 1 OF SURFACE ELEV.: N:E:DATE STARTED: 4/30/2024 DATE COMPLETED: 4/30/2024 % Hydrovac to 5', no soil recovered Silty clay, hydrocarbon odor Silty clay, hydrocaarbon odor Fine sand, hydrocarbon odor Fine sand, slight hydrocarbon odor Fine sand, no odor Fine sand, no odor Completed soil boring @ 25' bgs 0.4 N/A 58.2 128 23.2 102 20.0 PROJECT LOCATION: Lynndyl, UT Substation DRILLED BY:DRILLER NAME: NO. DATE 35.0 25.0 DIRECT PUSH DRILL RIG 3-INCH DRILLING METHOD FIRST OCCURRENCE: WATER LEVEL OBSERVATIONS 15.0 Sample: 23-25' @1331 Sample: 17-23' @1326 40.0 30.0 DEPTH TO WATER DEPTH TO BOTTOMTIME BORING DIAMETER GEOPROBE 6610 COMMENTVISUAL CLASSIFICATION AND OBSERVATIONS PACIFIC WEST DEPTH LOG OF SOIL BORING LOGGED BY: PROJECT NUMBER: SOIL BORING ID: PROJECT NAME: Lynndyl Release 564624.0000.0000 B. Cochran Sample: 8-14' @1320 Sample: 14-17' @1323 Sample: 5-8' @1314 TYPE BLOWS PID 10.0 5.0 REVISED 06/2011 PAGE _______ OF _______ SB-15 LOCATION:SHEET 1 OF SURFACE ELEV.: N:E:DATE STARTED: 4/30/2024 DATE COMPLETED: 4/30/2024 % Sandy clay loam Silty clay Silt-sandy clay Completed soil boring @ 10' bgs 0 0.3 0.1 20.0 PROJECT LOCATION: Lynndyl, UT Substation DRILLED BY:DRILLER NAME: NO. DATE 35.0 25.0 DIRECT PUSH DRILL RIG 3-INCH DRILLING METHOD FIRST OCCURRENCE: WATER LEVEL OBSERVATIONS 15.0 40.0 30.0 DEPTH TO WATER DEPTH TO BOTTOMTIME BORING DIAMETER GEOPROBE 6610 Sample: 2-4' @1520 COMMENTVISUAL CLASSIFICATION AND OBSERVATIONS PACIFIC WEST DEPTH Sample: 0-1' @1518 LOG OF SOIL BORING LOGGED BY: PROJECT NUMBER: SOIL BORING ID: SW PROJECT NAME: Lynndyl Release 564624.0000.0000 B. Cochran Sample: 9-10' @1530 Sample: 5-6' @1524 TYPE BLOWS PID 10.0 5.0 REVISED 06/2011 Attachment C Laboratory Analytical Reports ANALYTICAL REPORT May 10, 2024 TRC - Lakewood, CO Sample Delivery Group:L1732554 Samples Received:05/03/2024 Project Number:564624.0000.0000 Description:HEP Lynndyl, UT Report To:Brandon Cochran 131 E. Lincoln Ave Suite 200 Fort Collins, CO 80524 Entire Report Reviewed By: May 10, 2024 [Preliminary Report] Chris Ward 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 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 1 of 58 May 10, 2024 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 1 of 58 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SB-1 (2) 5-10' L1732554-01 7 SB-1 (2) 10-14' L1732554-02 9 SB-3 (2) 5-8' L1732554-07 11 SB-3 (2) 8-12' L1732554-08 13 SB-6 (2) 4.5-7.5' L1732554-12 15 SB-6 (2) 7.5-9.5' L1732554-13 17 SB-7 (2) 4-9' L1732554-18 19 SB-7 (2) 9-13' L1732554-19 21 SB-10 (2) 5-8' L1732554-25 23 SB-10 (2) 8-14' L1732554-26 25 SB-15 0-1' L1732554-30 27 SB-15 2-4' L1732554-31 29 SB-3 (2) 8-12-D L1732554-34 31 Qc: Quality Control Summary 33 Total Solids by Method 2540 G-2011 33 Volatile Organic Compounds (GC/MS) by Method 8260B 35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM 48 Gl: Glossary of Terms 53 Al: Accreditations & Locations 54 Sc: Sample Chain of Custody 55 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 2 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 2 of 58 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-1 (2) 5-10' L1732554-01 Solid BC 04/30/24 14:00 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281003 1 04/30/24 14:00 05/06/24 11:56 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2282804 20 04/30/24 14:00 05/08/24 21:54 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2282822 1 05/09/24 07:10 05/10/24 00:06 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-1 (2) 10-14' L1732554-02 Solid BC 04/30/24 14:05 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2282804 20 04/30/24 14:05 05/08/24 22:13 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2282822 1 05/09/24 07:10 05/10/24 00:23 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-3 (2) 5-8' L1732554-07 Solid BC 04/30/24 14:37 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 14:37 05/06/24 12:10 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2282647 10 04/30/24 14:37 05/08/24 22:16 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2282822 1 05/09/24 07:10 05/09/24 23:28 JCH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-3 (2) 8-12' L1732554-08 Solid BC 04/30/24 14:50 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 14:50 05/06/24 12:30 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2282822 1 05/09/24 07:10 05/09/24 23:46 JCH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-6 (2) 4.5-7.5' L1732554-12 Solid BC 04/30/24 10:47 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 10:47 05/06/24 12:50 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2282822 1 05/09/24 07:10 05/10/24 00:03 JCH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-6 (2) 7.5-9.5' L1732554-13 Solid BC 04/30/24 10:56 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 10:56 05/06/24 13:10 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2282822 1 05/09/24 07:10 05/10/24 00:21 JCH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 3 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 3 of 58 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-7 (2) 4-9' L1732554-18 Solid BC 04/30/24 12:03 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280137 1 05/04/24 12:27 05/04/24 12:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 12:03 05/06/24 13:30 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2283063 1 05/09/24 08:12 05/09/24 17:13 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-7 (2) 9-13' L1732554-19 Solid BC 04/30/24 12:10 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280138 1 05/04/24 12:00 05/04/24 12:22 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 12:10 05/06/24 13:51 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2283063 1 05/09/24 08:12 05/09/24 17:31 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-10 (2) 5-8' L1732554-25 Solid BC 04/30/24 13:14 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280138 1 05/04/24 12:00 05/04/24 12:22 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 13:14 05/06/24 14:11 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2283063 1 05/09/24 08:12 05/09/24 17:49 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-10 (2) 8-14' L1732554-26 Solid BC 04/30/24 13:20 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280138 1 05/04/24 12:00 05/04/24 12:22 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 13:20 05/06/24 14:31 JAH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2283063 1 05/09/24 08:12 05/09/24 18:07 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-15 0-1' L1732554-30 Solid BC 04/30/24 15:18 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280138 1 05/04/24 12:00 05/04/24 12:22 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 15:18 05/06/24 14:51 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2282647 1 04/30/24 15:18 05/08/24 18:54 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2283063 1 05/09/24 08:12 05/09/24 18:25 MKM Mt. Juliet, TN Collected by Collected date/time Received date/time SB-15 2-4' L1732554-31 Solid BC 04/30/24 15:20 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2280138 1 05/04/24 12:00 05/04/24 12:22 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 15:20 05/06/24 15:11 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2282647 1 04/30/24 15:20 05/08/24 19:14 ADM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2283063 1 05/09/24 08:12 05/09/24 18:43 MKM Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 4 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 4 of 58 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-3 (2) 8-12-D L1732554-34 Solid BC 04/30/24 14:50 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B WG2281014 1 04/30/24 14:50 05/06/24 15:31 JAH Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 5 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 5 of 58 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] Chris Ward Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 6 of 58 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 6 of 58 SAMPLE RESULTS - 01 L1732554 SB-1 (2) 5-10' Collected date/time: 04/30/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.4 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0794 1 05/06/2024 11:56 WG2281003 Acrylonitrile ND 0.0199 1 05/06/2024 11:56 WG2281003 Benzene 0.908 0.00159 1 05/06/2024 11:56 WG2281003 Bromobenzene ND 0.0199 1 05/06/2024 11:56 WG2281003 Bromodichloromethane ND 0.00397 1 05/06/2024 11:56 WG2281003 Bromoform ND 0.0397 1 05/06/2024 11:56 WG2281003 Bromomethane ND 0.0199 1 05/06/2024 11:56 WG2281003 n-Butylbenzene ND 0.0199 1 05/06/2024 11:56 WG2281003 sec-Butylbenzene 0.0535 0.0199 1 05/06/2024 11:56 WG2281003 tert-Butylbenzene ND 0.00794 1 05/06/2024 11:56 WG2281003 Carbon tetrachloride ND 0.00794 1 05/06/2024 11:56 WG2281003 Chlorobenzene ND 0.00397 1 05/06/2024 11:56 WG2281003 Chlorodibromomethane ND 0.00397 1 05/06/2024 11:56 WG2281003 Chloroethane ND 0.00794 1 05/06/2024 11:56 WG2281003 Chloroform ND 0.00397 1 05/06/2024 11:56 WG2281003 Chloromethane ND 0.0199 1 05/06/2024 11:56 WG2281003 2-Chlorotoluene ND 0.00397 1 05/06/2024 11:56 WG2281003 4-Chlorotoluene ND 0.00794 1 05/06/2024 11:56 WG2281003 1,2-Dibromo-3-Chloropropane ND 0.0397 1 05/06/2024 11:56 WG2281003 1,2-Dibromoethane ND 0.00397 1 05/06/2024 11:56 WG2281003 Dibromomethane ND 0.00794 1 05/06/2024 11:56 WG2281003 1,2-Dichlorobenzene ND 0.00794 1 05/06/2024 11:56 WG2281003 1,3-Dichlorobenzene ND 0.00794 1 05/06/2024 11:56 WG2281003 1,4-Dichlorobenzene ND 0.00794 1 05/06/2024 11:56 WG2281003 Dichlorodifluoromethane ND 0.00794 1 05/06/2024 11:56 WG2281003 1,1-Dichloroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 1,2-Dichloroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 1,1-Dichloroethene ND 0.00397 1 05/06/2024 11:56 WG2281003 cis-1,2-Dichloroethene ND 0.00397 1 05/06/2024 11:56 WG2281003 trans-1,2-Dichloroethene ND 0.00794 1 05/06/2024 11:56 WG2281003 1,2-Dichloropropane ND 0.00794 1 05/06/2024 11:56 WG2281003 1,1-Dichloropropene ND 0.00397 1 05/06/2024 11:56 WG2281003 1,3-Dichloropropane ND 0.00794 1 05/06/2024 11:56 WG2281003 cis-1,3-Dichloropropene ND 0.00397 1 05/06/2024 11:56 WG2281003 trans-1,3-Dichloropropene ND 0.00794 1 05/06/2024 11:56 WG2281003 2,2-Dichloropropane ND 0.00397 1 05/06/2024 11:56 WG2281003 Di-isopropyl ether ND 0.00159 1 05/06/2024 11:56 WG2281003 Ethylbenzene 1.43 0.00397 1 05/06/2024 11:56 WG2281003 Hexachloro-1,3-butadiene ND 0.0397 1 05/06/2024 11:56 WG2281003 Isopropylbenzene 0.103 0.00397 1 05/06/2024 11:56 WG2281003 p-Isopropyltoluene ND 0.00794 1 05/06/2024 11:56 WG2281003 2-Butanone (MEK)ND 0.159 1 05/06/2024 11:56 WG2281003 Methylene Chloride ND 0.0397 1 05/06/2024 11:56 WG2281003 4-Methyl-2-pentanone (MIBK) ND 0.0397 1 05/06/2024 11:56 WG2281003 Methyl tert-butyl ether ND 0.00159 1 05/06/2024 11:56 WG2281003 Naphthalene 0.140 0.0199 1 05/06/2024 11:56 WG2281003 n-Propylbenzene 0.389 0.00794 1 05/06/2024 11:56 WG2281003 Styrene ND 0.0199 1 05/06/2024 11:56 WG2281003 1,1,1,2-Tetrachloroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 1,1,2,2-Tetrachloroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 7 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 7 of 58 SAMPLE RESULTS - 01 L1732554 SB-1 (2) 5-10' Collected date/time: 04/30/24 14:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 Tetrachloroethene ND 0.00397 1 05/06/2024 11:56 WG2281003 Toluene 9.02 0.159 20 05/08/2024 21:54 WG2282804 1,2,3-Trichlorobenzene ND 0.0199 1 05/06/2024 11:56 WG2281003 1,2,4-Trichlorobenzene ND 0.0199 1 05/06/2024 11:56 WG2281003 1,1,1-Trichloroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 1,1,2-Trichloroethane ND 0.00397 1 05/06/2024 11:56 WG2281003 Trichloroethene ND 0.00159 1 05/06/2024 11:56 WG2281003 Trichlorofluoromethane ND 0.00397 1 05/06/2024 11:56 WG2281003 1,2,3-Trichloropropane ND 0.0199 1 05/06/2024 11:56 WG2281003 1,2,4-Trimethylbenzene 3.10 0.159 20 05/08/2024 21:54 WG2282804 1,2,3-Trimethylbenzene 0.707 0.00794 1 05/06/2024 11:56 WG2281003 1,3,5-Trimethylbenzene 1.02 0.00794 1 05/06/2024 11:56 WG2281003 Vinyl chloride ND 0.00397 1 05/06/2024 11:56 WG2281003 Xylenes, Total 8.96 0.206 20 05/08/2024 21:54 WG2282804 (S) Toluene-d8 117 75.0-131 05/06/2024 11:56 WG2281003 (S) Toluene-d8 99.8 75.0-131 05/08/2024 21:54 WG2282804 (S) 4-Bromofluorobenzene 114 67.0-138 05/06/2024 11:56 WG2281003 (S) 4-Bromofluorobenzene 98.7 67.0-138 05/08/2024 21:54 WG2282804 (S) 1,2-Dichloroethane-d4 78.4 70.0-130 05/06/2024 11:56 WG2281003 (S) 1,2-Dichloroethane-d4 106 70.0-130 05/08/2024 21:54 WG2282804 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00746 1 05/10/2024 00:06 WG2282822 Acenaphthene 0.0167 0.00746 1 05/10/2024 00:06 WG2282822 Acenaphthylene ND 0.00746 1 05/10/2024 00:06 WG2282822 Benzo(a)anthracene ND 0.00746 1 05/10/2024 00:06 WG2282822 Benzo(a)pyrene ND 0.00746 1 05/10/2024 00:06 WG2282822 Benzo(b)fluoranthene ND 0.00746 1 05/10/2024 00:06 WG2282822 Benzo(g,h,i)perylene ND 0.00746 1 05/10/2024 00:06 WG2282822 Benzo(k)fluoranthene ND 0.00746 1 05/10/2024 00:06 WG2282822 Chrysene ND 0.00746 1 05/10/2024 00:06 WG2282822 Dibenz(a,h)anthracene ND 0.00746 1 05/10/2024 00:06 WG2282822 Fluoranthene 0.00955 0.00746 1 05/10/2024 00:06 WG2282822 Fluorene 0.0240 0.00746 1 05/10/2024 00:06 WG2282822 Indeno(1,2,3-cd)pyrene ND 0.00746 1 05/10/2024 00:06 WG2282822 Naphthalene 0.252 0.0249 1 05/10/2024 00:06 WG2282822 Phenanthrene 0.0136 0.00746 1 05/10/2024 00:06 WG2282822 Pyrene 0.0350 0.00746 1 05/10/2024 00:06 WG2282822 1-Methylnaphthalene 0.215 0.0249 1 05/10/2024 00:06 WG2282822 2-Methylnaphthalene 0.366 0.0249 1 05/10/2024 00:06 WG2282822 2-Chloronaphthalene ND 0.0249 1 05/10/2024 00:06 WG2282822 (S) p-Terphenyl-d14 84.0 23.0-120 05/10/2024 00:06 WG2282822 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/10/2024 00:06 WG2282822 (S) 2-Fluorobiphenyl 69.8 34.0-125 05/10/2024 00:06 WG2282822 Sample Narrative: L1732554-01 WG2282822: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 8 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 8 of 58 SAMPLE RESULTS - 02 L1732554 SB-1 (2) 10-14' Collected date/time: 04/30/24 14:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 79.8 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND J3 J4 1.70 20 05/08/2024 22:13 WG2282804 Acrylonitrile ND 0.426 20 05/08/2024 22:13 WG2282804 Benzene 1.10 0.0341 20 05/08/2024 22:13 WG2282804 Bromobenzene ND 0.426 20 05/08/2024 22:13 WG2282804 Bromodichloromethane ND 0.0852 20 05/08/2024 22:13 WG2282804 Bromoform ND J4 0.852 20 05/08/2024 22:13 WG2282804 Bromomethane ND 0.426 20 05/08/2024 22:13 WG2282804 n-Butylbenzene ND 0.426 20 05/08/2024 22:13 WG2282804 sec-Butylbenzene ND 0.426 20 05/08/2024 22:13 WG2282804 tert-Butylbenzene ND 0.170 20 05/08/2024 22:13 WG2282804 Carbon tetrachloride ND 0.170 20 05/08/2024 22:13 WG2282804 Chlorobenzene ND 0.0852 20 05/08/2024 22:13 WG2282804 Chlorodibromomethane ND J4 0.0852 20 05/08/2024 22:13 WG2282804 Chloroethane ND 0.170 20 05/08/2024 22:13 WG2282804 Chloroform ND 0.0852 20 05/08/2024 22:13 WG2282804 Chloromethane ND 0.426 20 05/08/2024 22:13 WG2282804 2-Chlorotoluene ND 0.0852 20 05/08/2024 22:13 WG2282804 4-Chlorotoluene 0.261 0.170 20 05/08/2024 22:13 WG2282804 1,2-Dibromo-3-Chloropropane ND 0.852 20 05/08/2024 22:13 WG2282804 1,2-Dibromoethane ND 0.0852 20 05/08/2024 22:13 WG2282804 Dibromomethane ND 0.170 20 05/08/2024 22:13 WG2282804 1,2-Dichlorobenzene ND 0.170 20 05/08/2024 22:13 WG2282804 1,3-Dichlorobenzene ND 0.170 20 05/08/2024 22:13 WG2282804 1,4-Dichlorobenzene ND 0.170 20 05/08/2024 22:13 WG2282804 Dichlorodifluoromethane ND 0.170 20 05/08/2024 22:13 WG2282804 1,1-Dichloroethane ND 0.0852 20 05/08/2024 22:13 WG2282804 1,2-Dichloroethane ND 0.0852 20 05/08/2024 22:13 WG2282804 1,1-Dichloroethene ND 0.0852 20 05/08/2024 22:13 WG2282804 cis-1,2-Dichloroethene ND 0.0852 20 05/08/2024 22:13 WG2282804 trans-1,2-Dichloroethene ND 0.170 20 05/08/2024 22:13 WG2282804 1,2-Dichloropropane ND 0.170 20 05/08/2024 22:13 WG2282804 1,1-Dichloropropene ND 0.0852 20 05/08/2024 22:13 WG2282804 1,3-Dichloropropane ND 0.170 20 05/08/2024 22:13 WG2282804 cis-1,3-Dichloropropene ND 0.0852 20 05/08/2024 22:13 WG2282804 trans-1,3-Dichloropropene ND 0.170 20 05/08/2024 22:13 WG2282804 2,2-Dichloropropane ND 0.0852 20 05/08/2024 22:13 WG2282804 Di-isopropyl ether ND 0.0341 20 05/08/2024 22:13 WG2282804 Ethylbenzene 2.90 0.0852 20 05/08/2024 22:13 WG2282804 Hexachloro-1,3-butadiene ND 0.852 20 05/08/2024 22:13 WG2282804 Isopropylbenzene 0.222 0.0852 20 05/08/2024 22:13 WG2282804 p-Isopropyltoluene ND 0.170 20 05/08/2024 22:13 WG2282804 2-Butanone (MEK)ND 3.41 20 05/08/2024 22:13 WG2282804 Methylene Chloride ND 0.852 20 05/08/2024 22:13 WG2282804 4-Methyl-2-pentanone (MIBK) ND 0.852 20 05/08/2024 22:13 WG2282804 Methyl tert-butyl ether ND 0.0341 20 05/08/2024 22:13 WG2282804 Naphthalene ND J3 0.426 20 05/08/2024 22:13 WG2282804 n-Propylbenzene 1.16 0.170 20 05/08/2024 22:13 WG2282804 Styrene ND 0.426 20 05/08/2024 22:13 WG2282804 1,1,1,2-Tetrachloroethane ND J4 0.0852 20 05/08/2024 22:13 WG2282804 1,1,2,2-Tetrachloroethane ND 0.0852 20 05/08/2024 22:13 WG2282804 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 9 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 9 of 58 SAMPLE RESULTS - 02 L1732554 SB-1 (2) 10-14' Collected date/time: 04/30/24 14:05 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.0852 20 05/08/2024 22:13 WG2282804 Tetrachloroethene ND 0.0852 20 05/08/2024 22:13 WG2282804 Toluene 17.9 0.170 20 05/08/2024 22:13 WG2282804 1,2,3-Trichlorobenzene ND 0.426 20 05/08/2024 22:13 WG2282804 1,2,4-Trichlorobenzene ND 0.426 20 05/08/2024 22:13 WG2282804 1,1,1-Trichloroethane ND 0.0852 20 05/08/2024 22:13 WG2282804 1,1,2-Trichloroethane ND 0.0852 20 05/08/2024 22:13 WG2282804 Trichloroethene ND 0.0341 20 05/08/2024 22:13 WG2282804 Trichlorofluoromethane ND 0.0852 20 05/08/2024 22:13 WG2282804 1,2,3-Trichloropropane ND 0.426 20 05/08/2024 22:13 WG2282804 1,2,4-Trimethylbenzene 8.69 0.170 20 05/08/2024 22:13 WG2282804 1,2,3-Trimethylbenzene 2.05 0.170 20 05/08/2024 22:13 WG2282804 1,3,5-Trimethylbenzene 2.57 0.170 20 05/08/2024 22:13 WG2282804 Vinyl chloride ND 0.0852 20 05/08/2024 22:13 WG2282804 Xylenes, Total 23.9 0.222 20 05/08/2024 22:13 WG2282804 (S) Toluene-d8 99.4 75.0-131 05/08/2024 22:13 WG2282804 (S) 4-Bromofluorobenzene 98.4 67.0-138 05/08/2024 22:13 WG2282804 (S) 1,2-Dichloroethane-d4 108 70.0-130 05/08/2024 22:13 WG2282804 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00752 1 05/10/2024 00:23 WG2282822 Acenaphthene 0.0239 0.00752 1 05/10/2024 00:23 WG2282822 Acenaphthylene ND 0.00752 1 05/10/2024 00:23 WG2282822 Benzo(a)anthracene ND 0.00752 1 05/10/2024 00:23 WG2282822 Benzo(a)pyrene ND 0.00752 1 05/10/2024 00:23 WG2282822 Benzo(b)fluoranthene ND 0.00752 1 05/10/2024 00:23 WG2282822 Benzo(g,h,i)perylene ND 0.00752 1 05/10/2024 00:23 WG2282822 Benzo(k)fluoranthene ND 0.00752 1 05/10/2024 00:23 WG2282822 Chrysene ND 0.00752 1 05/10/2024 00:23 WG2282822 Dibenz(a,h)anthracene ND 0.00752 1 05/10/2024 00:23 WG2282822 Fluoranthene ND 0.00752 1 05/10/2024 00:23 WG2282822 Fluorene 0.0375 0.00752 1 05/10/2024 00:23 WG2282822 Indeno(1,2,3-cd)pyrene ND 0.00752 1 05/10/2024 00:23 WG2282822 Naphthalene 0.336 J6 0.0251 1 05/10/2024 00:23 WG2282822 Phenanthrene 0.0162 0.00752 1 05/10/2024 00:23 WG2282822 Pyrene 0.0413 0.00752 1 05/10/2024 00:23 WG2282822 1-Methylnaphthalene 0.283 J6 0.0251 1 05/10/2024 00:23 WG2282822 2-Methylnaphthalene 0.469 V 0.0251 1 05/10/2024 00:23 WG2282822 2-Chloronaphthalene ND 0.0251 1 05/10/2024 00:23 WG2282822 (S) p-Terphenyl-d14 85.4 23.0-120 05/10/2024 00:23 WG2282822 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/10/2024 00:23 WG2282822 (S) 2-Fluorobiphenyl 72.0 34.0-125 05/10/2024 00:23 WG2282822 Sample Narrative: L1732554-02 WG2282822: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 10 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 10 of 58 SAMPLE RESULTS - 07 L1732554 SB-3 (2) 5-8' Collected date/time: 04/30/24 14:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.1 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0856 1 05/06/2024 12:10 WG2281014 Acrylonitrile ND 0.0214 1 05/06/2024 12:10 WG2281014 Benzene 0.200 0.00171 1 05/06/2024 12:10 WG2281014 Bromobenzene ND 0.0214 1 05/06/2024 12:10 WG2281014 Bromodichloromethane ND 0.00428 1 05/06/2024 12:10 WG2281014 Bromoform ND 0.0428 1 05/06/2024 12:10 WG2281014 Bromomethane ND 0.0214 1 05/06/2024 12:10 WG2281014 n-Butylbenzene 0.336 0.0214 1 05/06/2024 12:10 WG2281014 sec-Butylbenzene 0.131 0.0214 1 05/06/2024 12:10 WG2281014 tert-Butylbenzene ND 0.00856 1 05/06/2024 12:10 WG2281014 Carbon tetrachloride ND 0.00856 1 05/06/2024 12:10 WG2281014 Chlorobenzene ND 0.00428 1 05/06/2024 12:10 WG2281014 Chlorodibromomethane ND 0.00428 1 05/06/2024 12:10 WG2281014 Chloroethane ND J3 0.00856 1 05/06/2024 12:10 WG2281014 Chloroform ND 0.00428 1 05/06/2024 12:10 WG2281014 Chloromethane ND 0.0214 1 05/06/2024 12:10 WG2281014 2-Chlorotoluene ND 0.00428 1 05/06/2024 12:10 WG2281014 4-Chlorotoluene ND 0.00856 1 05/06/2024 12:10 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0428 1 05/06/2024 12:10 WG2281014 1,2-Dibromoethane ND 0.00428 1 05/06/2024 12:10 WG2281014 Dibromomethane ND 0.00856 1 05/06/2024 12:10 WG2281014 1,2-Dichlorobenzene ND 0.00856 1 05/06/2024 12:10 WG2281014 1,3-Dichlorobenzene ND 0.00856 1 05/06/2024 12:10 WG2281014 1,4-Dichlorobenzene ND 0.00856 1 05/06/2024 12:10 WG2281014 Dichlorodifluoromethane ND 0.00856 1 05/06/2024 12:10 WG2281014 1,1-Dichloroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 1,2-Dichloroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 1,1-Dichloroethene ND 0.00428 1 05/06/2024 12:10 WG2281014 cis-1,2-Dichloroethene ND 0.00428 1 05/06/2024 12:10 WG2281014 trans-1,2-Dichloroethene ND 0.00856 1 05/06/2024 12:10 WG2281014 1,2-Dichloropropane ND 0.00856 1 05/06/2024 12:10 WG2281014 1,1-Dichloropropene ND 0.00428 1 05/06/2024 12:10 WG2281014 1,3-Dichloropropane ND 0.00856 1 05/06/2024 12:10 WG2281014 cis-1,3-Dichloropropene ND 0.00428 1 05/06/2024 12:10 WG2281014 trans-1,3-Dichloropropene ND 0.00856 1 05/06/2024 12:10 WG2281014 2,2-Dichloropropane ND 0.00428 1 05/06/2024 12:10 WG2281014 Di-isopropyl ether ND 0.00171 1 05/06/2024 12:10 WG2281014 Ethylbenzene 1.12 0.00428 1 05/06/2024 12:10 WG2281014 Hexachloro-1,3-butadiene ND 0.0428 1 05/06/2024 12:10 WG2281014 Isopropylbenzene 0.136 0.00428 1 05/06/2024 12:10 WG2281014 p-Isopropyltoluene 0.104 0.00856 1 05/06/2024 12:10 WG2281014 2-Butanone (MEK)ND 0.171 1 05/06/2024 12:10 WG2281014 Methylene Chloride ND 0.0428 1 05/06/2024 12:10 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0428 1 05/06/2024 12:10 WG2281014 Methyl tert-butyl ether ND 0.00171 1 05/06/2024 12:10 WG2281014 Naphthalene 0.136 0.0214 1 05/06/2024 12:10 WG2281014 n-Propylbenzene 0.533 0.00856 1 05/06/2024 12:10 WG2281014 Styrene ND 0.0214 1 05/06/2024 12:10 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 11 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 11 of 58 SAMPLE RESULTS - 07 L1732554 SB-3 (2) 5-8' Collected date/time: 04/30/24 14:37 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 Tetrachloroethene ND 0.00428 1 05/06/2024 12:10 WG2281014 Toluene 4.93 0.0856 10 05/08/2024 22:16 WG2282647 1,2,3-Trichlorobenzene ND 0.0214 1 05/06/2024 12:10 WG2281014 1,2,4-Trichlorobenzene ND 0.0214 1 05/06/2024 12:10 WG2281014 1,1,1-Trichloroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 1,1,2-Trichloroethane ND 0.00428 1 05/06/2024 12:10 WG2281014 Trichloroethene ND 0.00171 1 05/06/2024 12:10 WG2281014 Trichlorofluoromethane ND 0.00428 1 05/06/2024 12:10 WG2281014 1,2,3-Trichloropropane ND 0.0214 1 05/06/2024 12:10 WG2281014 1,2,4-Trimethylbenzene 3.32 0.0856 10 05/08/2024 22:16 WG2282647 1,2,3-Trimethylbenzene 0.846 0.00856 1 05/06/2024 12:10 WG2281014 1,3,5-Trimethylbenzene 0.841 0.00856 1 05/06/2024 12:10 WG2281014 Vinyl chloride ND 0.00428 1 05/06/2024 12:10 WG2281014 Xylenes, Total 8.20 0.111 10 05/08/2024 22:16 WG2282647 (S) Toluene-d8 110 75.0-131 05/06/2024 12:10 WG2281014 (S) Toluene-d8 111 75.0-131 05/08/2024 22:16 WG2282647 (S) 4-Bromofluorobenzene 129 67.0-138 05/06/2024 12:10 WG2281014 (S) 4-Bromofluorobenzene 106 67.0-138 05/08/2024 22:16 WG2282647 (S) 1,2-Dichloroethane-d4 83.1 70.0-130 05/06/2024 12:10 WG2281014 (S) 1,2-Dichloroethane-d4 95.8 70.0-130 05/08/2024 22:16 WG2282647 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00749 1 05/09/2024 23:28 WG2282822 Acenaphthene 0.0251 0.00749 1 05/09/2024 23:28 WG2282822 Acenaphthylene ND 0.00749 1 05/09/2024 23:28 WG2282822 Benzo(a)anthracene ND 0.00749 1 05/09/2024 23:28 WG2282822 Benzo(a)pyrene ND 0.00749 1 05/09/2024 23:28 WG2282822 Benzo(b)fluoranthene ND 0.00749 1 05/09/2024 23:28 WG2282822 Benzo(g,h,i)perylene ND 0.00749 1 05/09/2024 23:28 WG2282822 Benzo(k)fluoranthene ND 0.00749 1 05/09/2024 23:28 WG2282822 Chrysene ND 0.00749 1 05/09/2024 23:28 WG2282822 Dibenz(a,h)anthracene ND 0.00749 1 05/09/2024 23:28 WG2282822 Fluoranthene ND 0.00749 1 05/09/2024 23:28 WG2282822 Fluorene ND 0.00749 1 05/09/2024 23:28 WG2282822 Indeno(1,2,3-cd)pyrene ND 0.00749 1 05/09/2024 23:28 WG2282822 Naphthalene 0.189 0.0250 1 05/09/2024 23:28 WG2282822 Phenanthrene 0.0194 0.00749 1 05/09/2024 23:28 WG2282822 Pyrene 0.0241 0.00749 1 05/09/2024 23:28 WG2282822 1-Methylnaphthalene 0.224 0.0250 1 05/09/2024 23:28 WG2282822 2-Methylnaphthalene 0.328 0.0250 1 05/09/2024 23:28 WG2282822 2-Chloronaphthalene ND 0.0250 1 05/09/2024 23:28 WG2282822 (S) p-Terphenyl-d14 89.5 23.0-120 05/09/2024 23:28 WG2282822 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/09/2024 23:28 WG2282822 (S) 2-Fluorobiphenyl 84.7 34.0-125 05/09/2024 23:28 WG2282822 Sample Narrative: L1732554-07 WG2282822: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 12 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 12 of 58 SAMPLE RESULTS - 08 L1732554 SB-3 (2) 8-12' Collected date/time: 04/30/24 14:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.0 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0849 1 05/06/2024 12:30 WG2281014 Acrylonitrile ND 0.0212 1 05/06/2024 12:30 WG2281014 Benzene 0.0246 0.00170 1 05/06/2024 12:30 WG2281014 Bromobenzene ND 0.0212 1 05/06/2024 12:30 WG2281014 Bromodichloromethane ND 0.00425 1 05/06/2024 12:30 WG2281014 Bromoform ND 0.0425 1 05/06/2024 12:30 WG2281014 Bromomethane ND 0.0212 1 05/06/2024 12:30 WG2281014 n-Butylbenzene 0.0725 0.0212 1 05/06/2024 12:30 WG2281014 sec-Butylbenzene 0.0391 0.0212 1 05/06/2024 12:30 WG2281014 tert-Butylbenzene ND 0.00849 1 05/06/2024 12:30 WG2281014 Carbon tetrachloride ND 0.00849 1 05/06/2024 12:30 WG2281014 Chlorobenzene ND 0.00425 1 05/06/2024 12:30 WG2281014 Chlorodibromomethane ND 0.00425 1 05/06/2024 12:30 WG2281014 Chloroethane ND J3 0.00849 1 05/06/2024 12:30 WG2281014 Chloroform ND 0.00425 1 05/06/2024 12:30 WG2281014 Chloromethane ND 0.0212 1 05/06/2024 12:30 WG2281014 2-Chlorotoluene ND 0.00425 1 05/06/2024 12:30 WG2281014 4-Chlorotoluene ND 0.00849 1 05/06/2024 12:30 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0425 1 05/06/2024 12:30 WG2281014 1,2-Dibromoethane ND 0.00425 1 05/06/2024 12:30 WG2281014 Dibromomethane ND 0.00849 1 05/06/2024 12:30 WG2281014 1,2-Dichlorobenzene ND 0.00849 1 05/06/2024 12:30 WG2281014 1,3-Dichlorobenzene ND 0.00849 1 05/06/2024 12:30 WG2281014 1,4-Dichlorobenzene ND 0.00849 1 05/06/2024 12:30 WG2281014 Dichlorodifluoromethane ND 0.00849 1 05/06/2024 12:30 WG2281014 1,1-Dichloroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 1,2-Dichloroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 1,1-Dichloroethene ND 0.00425 1 05/06/2024 12:30 WG2281014 cis-1,2-Dichloroethene ND 0.00425 1 05/06/2024 12:30 WG2281014 trans-1,2-Dichloroethene ND 0.00849 1 05/06/2024 12:30 WG2281014 1,2-Dichloropropane ND 0.00849 1 05/06/2024 12:30 WG2281014 1,1-Dichloropropene ND 0.00425 1 05/06/2024 12:30 WG2281014 1,3-Dichloropropane ND 0.00849 1 05/06/2024 12:30 WG2281014 cis-1,3-Dichloropropene ND 0.00425 1 05/06/2024 12:30 WG2281014 trans-1,3-Dichloropropene ND 0.00849 1 05/06/2024 12:30 WG2281014 2,2-Dichloropropane ND 0.00425 1 05/06/2024 12:30 WG2281014 Di-isopropyl ether ND 0.00170 1 05/06/2024 12:30 WG2281014 Ethylbenzene 0.177 0.00425 1 05/06/2024 12:30 WG2281014 Hexachloro-1,3-butadiene ND 0.0425 1 05/06/2024 12:30 WG2281014 Isopropylbenzene 0.0260 0.00425 1 05/06/2024 12:30 WG2281014 p-Isopropyltoluene 0.0277 0.00849 1 05/06/2024 12:30 WG2281014 2-Butanone (MEK)ND 0.170 1 05/06/2024 12:30 WG2281014 Methylene Chloride ND 0.0425 1 05/06/2024 12:30 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0425 1 05/06/2024 12:30 WG2281014 Methyl tert-butyl ether ND 0.00170 1 05/06/2024 12:30 WG2281014 Naphthalene 0.0594 0.0212 1 05/06/2024 12:30 WG2281014 n-Propylbenzene 0.115 0.00849 1 05/06/2024 12:30 WG2281014 Styrene ND 0.0212 1 05/06/2024 12:30 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 13 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 13 of 58 SAMPLE RESULTS - 08 L1732554 SB-3 (2) 8-12' Collected date/time: 04/30/24 14:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 Tetrachloroethene ND 0.00425 1 05/06/2024 12:30 WG2281014 Toluene 0.557 0.00849 1 05/06/2024 12:30 WG2281014 1,2,3-Trichlorobenzene ND 0.0212 1 05/06/2024 12:30 WG2281014 1,2,4-Trichlorobenzene ND 0.0212 1 05/06/2024 12:30 WG2281014 1,1,1-Trichloroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 1,1,2-Trichloroethane ND 0.00425 1 05/06/2024 12:30 WG2281014 Trichloroethene ND 0.00170 1 05/06/2024 12:30 WG2281014 Trichlorofluoromethane ND 0.00425 1 05/06/2024 12:30 WG2281014 1,2,3-Trichloropropane ND 0.0212 1 05/06/2024 12:30 WG2281014 1,2,4-Trimethylbenzene 0.834 0.00849 1 05/06/2024 12:30 WG2281014 1,2,3-Trimethylbenzene 0.248 0.00849 1 05/06/2024 12:30 WG2281014 1,3,5-Trimethylbenzene 0.226 0.00849 1 05/06/2024 12:30 WG2281014 Vinyl chloride ND 0.00425 1 05/06/2024 12:30 WG2281014 Xylenes, Total 1.56 0.0110 1 05/06/2024 12:30 WG2281014 (S) Toluene-d8 113 75.0-131 05/06/2024 12:30 WG2281014 (S) 4-Bromofluorobenzene 112 67.0-138 05/06/2024 12:30 WG2281014 (S) 1,2-Dichloroethane-d4 91.0 70.0-130 05/06/2024 12:30 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00750 1 05/09/2024 23:46 WG2282822 Acenaphthene ND 0.00750 1 05/09/2024 23:46 WG2282822 Acenaphthylene ND 0.00750 1 05/09/2024 23:46 WG2282822 Benzo(a)anthracene ND 0.00750 1 05/09/2024 23:46 WG2282822 Benzo(a)pyrene ND 0.00750 1 05/09/2024 23:46 WG2282822 Benzo(b)fluoranthene ND 0.00750 1 05/09/2024 23:46 WG2282822 Benzo(g,h,i)perylene ND 0.00750 1 05/09/2024 23:46 WG2282822 Benzo(k)fluoranthene ND 0.00750 1 05/09/2024 23:46 WG2282822 Chrysene ND 0.00750 1 05/09/2024 23:46 WG2282822 Dibenz(a,h)anthracene ND 0.00750 1 05/09/2024 23:46 WG2282822 Fluoranthene ND 0.00750 1 05/09/2024 23:46 WG2282822 Fluorene ND 0.00750 1 05/09/2024 23:46 WG2282822 Indeno(1,2,3-cd)pyrene ND 0.00750 1 05/09/2024 23:46 WG2282822 Naphthalene 0.0406 0.0250 1 05/09/2024 23:46 WG2282822 Phenanthrene ND 0.00750 1 05/09/2024 23:46 WG2282822 Pyrene ND 0.00750 1 05/09/2024 23:46 WG2282822 1-Methylnaphthalene 0.0500 0.0250 1 05/09/2024 23:46 WG2282822 2-Methylnaphthalene 0.0773 0.0250 1 05/09/2024 23:46 WG2282822 2-Chloronaphthalene ND 0.0250 1 05/09/2024 23:46 WG2282822 (S) p-Terphenyl-d14 84.2 23.0-120 05/09/2024 23:46 WG2282822 (S) Nitrobenzene-d5 122 14.0-149 05/09/2024 23:46 WG2282822 (S) 2-Fluorobiphenyl 84.2 34.0-125 05/09/2024 23:46 WG2282822 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 14 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 14 of 58 SAMPLE RESULTS - 12 L1732554 SB-6 (2) 4.5-7.5' Collected date/time: 04/30/24 10:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.7 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0893 1 05/06/2024 12:50 WG2281014 Acrylonitrile ND 0.0223 1 05/06/2024 12:50 WG2281014 Benzene 0.00918 0.00179 1 05/06/2024 12:50 WG2281014 Bromobenzene ND 0.0223 1 05/06/2024 12:50 WG2281014 Bromodichloromethane ND 0.00446 1 05/06/2024 12:50 WG2281014 Bromoform ND 0.0446 1 05/06/2024 12:50 WG2281014 Bromomethane ND 0.0223 1 05/06/2024 12:50 WG2281014 n-Butylbenzene 0.286 0.0223 1 05/06/2024 12:50 WG2281014 sec-Butylbenzene 0.110 0.0223 1 05/06/2024 12:50 WG2281014 tert-Butylbenzene ND 0.00893 1 05/06/2024 12:50 WG2281014 Carbon tetrachloride ND 0.00893 1 05/06/2024 12:50 WG2281014 Chlorobenzene ND 0.00446 1 05/06/2024 12:50 WG2281014 Chlorodibromomethane ND 0.00446 1 05/06/2024 12:50 WG2281014 Chloroethane ND J3 0.00893 1 05/06/2024 12:50 WG2281014 Chloroform ND 0.00446 1 05/06/2024 12:50 WG2281014 Chloromethane ND 0.0223 1 05/06/2024 12:50 WG2281014 2-Chlorotoluene ND 0.00446 1 05/06/2024 12:50 WG2281014 4-Chlorotoluene ND 0.00893 1 05/06/2024 12:50 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0446 1 05/06/2024 12:50 WG2281014 1,2-Dibromoethane ND 0.00446 1 05/06/2024 12:50 WG2281014 Dibromomethane ND 0.00893 1 05/06/2024 12:50 WG2281014 1,2-Dichlorobenzene ND 0.00893 1 05/06/2024 12:50 WG2281014 1,3-Dichlorobenzene ND 0.00893 1 05/06/2024 12:50 WG2281014 1,4-Dichlorobenzene ND 0.00893 1 05/06/2024 12:50 WG2281014 Dichlorodifluoromethane ND 0.00893 1 05/06/2024 12:50 WG2281014 1,1-Dichloroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 1,2-Dichloroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 1,1-Dichloroethene ND 0.00446 1 05/06/2024 12:50 WG2281014 cis-1,2-Dichloroethene ND 0.00446 1 05/06/2024 12:50 WG2281014 trans-1,2-Dichloroethene ND 0.00893 1 05/06/2024 12:50 WG2281014 1,2-Dichloropropane ND 0.00893 1 05/06/2024 12:50 WG2281014 1,1-Dichloropropene ND 0.00446 1 05/06/2024 12:50 WG2281014 1,3-Dichloropropane ND 0.00893 1 05/06/2024 12:50 WG2281014 cis-1,3-Dichloropropene ND 0.00446 1 05/06/2024 12:50 WG2281014 trans-1,3-Dichloropropene ND 0.00893 1 05/06/2024 12:50 WG2281014 2,2-Dichloropropane ND 0.00446 1 05/06/2024 12:50 WG2281014 Di-isopropyl ether ND 0.00179 1 05/06/2024 12:50 WG2281014 Ethylbenzene 0.164 0.00446 1 05/06/2024 12:50 WG2281014 Hexachloro-1,3-butadiene ND 0.0446 1 05/06/2024 12:50 WG2281014 Isopropylbenzene 0.0637 0.00446 1 05/06/2024 12:50 WG2281014 p-Isopropyltoluene 0.0987 0.00893 1 05/06/2024 12:50 WG2281014 2-Butanone (MEK)ND 0.179 1 05/06/2024 12:50 WG2281014 Methylene Chloride ND 0.0446 1 05/06/2024 12:50 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0446 1 05/06/2024 12:50 WG2281014 Methyl tert-butyl ether ND 0.00179 1 05/06/2024 12:50 WG2281014 Naphthalene 0.163 0.0223 1 05/06/2024 12:50 WG2281014 n-Propylbenzene 0.216 0.00893 1 05/06/2024 12:50 WG2281014 Styrene ND 0.0223 1 05/06/2024 12:50 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 15 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 15 of 58 SAMPLE RESULTS - 12 L1732554 SB-6 (2) 4.5-7.5' Collected date/time: 04/30/24 10:47 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 Tetrachloroethene ND 0.00446 1 05/06/2024 12:50 WG2281014 Toluene 0.170 0.00893 1 05/06/2024 12:50 WG2281014 1,2,3-Trichlorobenzene ND 0.0223 1 05/06/2024 12:50 WG2281014 1,2,4-Trichlorobenzene ND 0.0223 1 05/06/2024 12:50 WG2281014 1,1,1-Trichloroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 1,1,2-Trichloroethane ND 0.00446 1 05/06/2024 12:50 WG2281014 Trichloroethene ND 0.00179 1 05/06/2024 12:50 WG2281014 Trichlorofluoromethane ND 0.00446 1 05/06/2024 12:50 WG2281014 1,2,3-Trichloropropane ND 0.0223 1 05/06/2024 12:50 WG2281014 1,2,4-Trimethylbenzene 1.21 0.00893 1 05/06/2024 12:50 WG2281014 1,2,3-Trimethylbenzene 0.537 0.00893 1 05/06/2024 12:50 WG2281014 1,3,5-Trimethylbenzene 0.334 0.00893 1 05/06/2024 12:50 WG2281014 Vinyl chloride ND 0.00446 1 05/06/2024 12:50 WG2281014 Xylenes, Total 1.06 0.0116 1 05/06/2024 12:50 WG2281014 (S) Toluene-d8 118 75.0-131 05/06/2024 12:50 WG2281014 (S) 4-Bromofluorobenzene 129 67.0-138 05/06/2024 12:50 WG2281014 (S) 1,2-Dichloroethane-d4 88.1 70.0-130 05/06/2024 12:50 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00743 1 05/10/2024 00:03 WG2282822 Acenaphthene ND 0.00743 1 05/10/2024 00:03 WG2282822 Acenaphthylene ND 0.00743 1 05/10/2024 00:03 WG2282822 Benzo(a)anthracene ND 0.00743 1 05/10/2024 00:03 WG2282822 Benzo(a)pyrene ND 0.00743 1 05/10/2024 00:03 WG2282822 Benzo(b)fluoranthene ND 0.00743 1 05/10/2024 00:03 WG2282822 Benzo(g,h,i)perylene ND 0.00743 1 05/10/2024 00:03 WG2282822 Benzo(k)fluoranthene ND 0.00743 1 05/10/2024 00:03 WG2282822 Chrysene ND 0.00743 1 05/10/2024 00:03 WG2282822 Dibenz(a,h)anthracene ND 0.00743 1 05/10/2024 00:03 WG2282822 Fluoranthene ND 0.00743 1 05/10/2024 00:03 WG2282822 Fluorene ND 0.00743 1 05/10/2024 00:03 WG2282822 Indeno(1,2,3-cd)pyrene ND 0.00743 1 05/10/2024 00:03 WG2282822 Naphthalene 0.214 0.0248 1 05/10/2024 00:03 WG2282822 Phenanthrene 0.0339 0.00743 1 05/10/2024 00:03 WG2282822 Pyrene 0.0591 0.00743 1 05/10/2024 00:03 WG2282822 1-Methylnaphthalene 0.354 0.0248 1 05/10/2024 00:03 WG2282822 2-Methylnaphthalene 0.550 0.0248 1 05/10/2024 00:03 WG2282822 2-Chloronaphthalene ND 0.0248 1 05/10/2024 00:03 WG2282822 (S) p-Terphenyl-d14 81.1 23.0-120 05/10/2024 00:03 WG2282822 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/10/2024 00:03 WG2282822 (S) 2-Fluorobiphenyl 66.9 34.0-125 05/10/2024 00:03 WG2282822 Sample Narrative: L1732554-12 WG2282822: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 16 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 16 of 58 SAMPLE RESULTS - 13 L1732554 SB-6 (2) 7.5-9.5' Collected date/time: 04/30/24 10:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.1 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0849 1 05/06/2024 13:10 WG2281014 Acrylonitrile ND 0.0212 1 05/06/2024 13:10 WG2281014 Benzene 0.00292 0.00170 1 05/06/2024 13:10 WG2281014 Bromobenzene ND 0.0212 1 05/06/2024 13:10 WG2281014 Bromodichloromethane ND 0.00425 1 05/06/2024 13:10 WG2281014 Bromoform ND 0.0425 1 05/06/2024 13:10 WG2281014 Bromomethane ND 0.0212 1 05/06/2024 13:10 WG2281014 n-Butylbenzene 0.323 0.0212 1 05/06/2024 13:10 WG2281014 sec-Butylbenzene 0.163 0.0212 1 05/06/2024 13:10 WG2281014 tert-Butylbenzene ND 0.00849 1 05/06/2024 13:10 WG2281014 Carbon tetrachloride ND 0.00849 1 05/06/2024 13:10 WG2281014 Chlorobenzene ND 0.00425 1 05/06/2024 13:10 WG2281014 Chlorodibromomethane ND 0.00425 1 05/06/2024 13:10 WG2281014 Chloroethane ND J3 0.00849 1 05/06/2024 13:10 WG2281014 Chloroform ND 0.00425 1 05/06/2024 13:10 WG2281014 Chloromethane ND 0.0212 1 05/06/2024 13:10 WG2281014 2-Chlorotoluene ND 0.00425 1 05/06/2024 13:10 WG2281014 4-Chlorotoluene ND 0.00849 1 05/06/2024 13:10 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0425 1 05/06/2024 13:10 WG2281014 1,2-Dibromoethane ND 0.00425 1 05/06/2024 13:10 WG2281014 Dibromomethane ND 0.00849 1 05/06/2024 13:10 WG2281014 1,2-Dichlorobenzene ND 0.00849 1 05/06/2024 13:10 WG2281014 1,3-Dichlorobenzene ND 0.00849 1 05/06/2024 13:10 WG2281014 1,4-Dichlorobenzene ND 0.00849 1 05/06/2024 13:10 WG2281014 Dichlorodifluoromethane ND 0.00849 1 05/06/2024 13:10 WG2281014 1,1-Dichloroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 1,2-Dichloroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 1,1-Dichloroethene ND 0.00425 1 05/06/2024 13:10 WG2281014 cis-1,2-Dichloroethene ND 0.00425 1 05/06/2024 13:10 WG2281014 trans-1,2-Dichloroethene ND 0.00849 1 05/06/2024 13:10 WG2281014 1,2-Dichloropropane ND 0.00849 1 05/06/2024 13:10 WG2281014 1,1-Dichloropropene ND 0.00425 1 05/06/2024 13:10 WG2281014 1,3-Dichloropropane ND 0.00849 1 05/06/2024 13:10 WG2281014 cis-1,3-Dichloropropene ND 0.00425 1 05/06/2024 13:10 WG2281014 trans-1,3-Dichloropropene ND 0.00849 1 05/06/2024 13:10 WG2281014 2,2-Dichloropropane ND 0.00425 1 05/06/2024 13:10 WG2281014 Di-isopropyl ether ND 0.00170 1 05/06/2024 13:10 WG2281014 Ethylbenzene 0.147 0.00425 1 05/06/2024 13:10 WG2281014 Hexachloro-1,3-butadiene ND 0.0425 1 05/06/2024 13:10 WG2281014 Isopropylbenzene 0.0827 0.00425 1 05/06/2024 13:10 WG2281014 p-Isopropyltoluene 0.133 0.00849 1 05/06/2024 13:10 WG2281014 2-Butanone (MEK)ND 0.170 1 05/06/2024 13:10 WG2281014 Methylene Chloride ND 0.0425 1 05/06/2024 13:10 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0425 1 05/06/2024 13:10 WG2281014 Methyl tert-butyl ether ND 0.00170 1 05/06/2024 13:10 WG2281014 Naphthalene 0.161 0.0212 1 05/06/2024 13:10 WG2281014 n-Propylbenzene 0.299 0.00849 1 05/06/2024 13:10 WG2281014 Styrene ND 0.0212 1 05/06/2024 13:10 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 17 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 17 of 58 SAMPLE RESULTS - 13 L1732554 SB-6 (2) 7.5-9.5' Collected date/time: 04/30/24 10:56 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 Tetrachloroethene ND 0.00425 1 05/06/2024 13:10 WG2281014 Toluene 0.0895 0.00849 1 05/06/2024 13:10 WG2281014 1,2,3-Trichlorobenzene ND 0.0212 1 05/06/2024 13:10 WG2281014 1,2,4-Trichlorobenzene ND 0.0212 1 05/06/2024 13:10 WG2281014 1,1,1-Trichloroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 1,1,2-Trichloroethane ND 0.00425 1 05/06/2024 13:10 WG2281014 Trichloroethene ND 0.00170 1 05/06/2024 13:10 WG2281014 Trichlorofluoromethane ND 0.00425 1 05/06/2024 13:10 WG2281014 1,2,3-Trichloropropane ND 0.0212 1 05/06/2024 13:10 WG2281014 1,2,4-Trimethylbenzene 1.60 0.00849 1 05/06/2024 13:10 WG2281014 1,2,3-Trimethylbenzene 0.759 0.00849 1 05/06/2024 13:10 WG2281014 1,3,5-Trimethylbenzene 0.467 0.00849 1 05/06/2024 13:10 WG2281014 Vinyl chloride ND 0.00425 1 05/06/2024 13:10 WG2281014 Xylenes, Total 1.32 0.0110 1 05/06/2024 13:10 WG2281014 (S) Toluene-d8 112 75.0-131 05/06/2024 13:10 WG2281014 (S) 4-Bromofluorobenzene 125 67.0-138 05/06/2024 13:10 WG2281014 (S) 1,2-Dichloroethane-d4 91.4 70.0-130 05/06/2024 13:10 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00730 1 05/10/2024 00:21 WG2282822 Acenaphthene ND 0.00730 1 05/10/2024 00:21 WG2282822 Acenaphthylene ND 0.00730 1 05/10/2024 00:21 WG2282822 Benzo(a)anthracene ND 0.00730 1 05/10/2024 00:21 WG2282822 Benzo(a)pyrene ND 0.00730 1 05/10/2024 00:21 WG2282822 Benzo(b)fluoranthene ND 0.00730 1 05/10/2024 00:21 WG2282822 Benzo(g,h,i)perylene ND 0.00730 1 05/10/2024 00:21 WG2282822 Benzo(k)fluoranthene ND 0.00730 1 05/10/2024 00:21 WG2282822 Chrysene ND 0.00730 1 05/10/2024 00:21 WG2282822 Dibenz(a,h)anthracene ND 0.00730 1 05/10/2024 00:21 WG2282822 Fluoranthene ND 0.00730 1 05/10/2024 00:21 WG2282822 Fluorene ND 0.00730 1 05/10/2024 00:21 WG2282822 Indeno(1,2,3-cd)pyrene ND 0.00730 1 05/10/2024 00:21 WG2282822 Naphthalene ND 0.0243 1 05/10/2024 00:21 WG2282822 Phenanthrene 0.0147 0.00730 1 05/10/2024 00:21 WG2282822 Pyrene 0.0259 0.00730 1 05/10/2024 00:21 WG2282822 1-Methylnaphthalene 0.133 0.0243 1 05/10/2024 00:21 WG2282822 2-Methylnaphthalene 0.106 0.0243 1 05/10/2024 00:21 WG2282822 2-Chloronaphthalene ND 0.0243 1 05/10/2024 00:21 WG2282822 (S) p-Terphenyl-d14 90.4 23.0-120 05/10/2024 00:21 WG2282822 (S) Nitrobenzene-d5 173 J1 14.0-149 05/10/2024 00:21 WG2282822 (S) 2-Fluorobiphenyl 83.5 34.0-125 05/10/2024 00:21 WG2282822 Sample Narrative: L1732554-13 WG2282822: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 18 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 18 of 58 SAMPLE RESULTS - 18 L1732554 SB-7 (2) 4-9' Collected date/time: 04/30/24 12:03 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 81.3 1 05/04/2024 12:41 WG2280137 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0840 1 05/06/2024 13:30 WG2281014 Acrylonitrile ND 0.0210 1 05/06/2024 13:30 WG2281014 Benzene 0.00420 0.00168 1 05/06/2024 13:30 WG2281014 Bromobenzene ND 0.0210 1 05/06/2024 13:30 WG2281014 Bromodichloromethane ND 0.00420 1 05/06/2024 13:30 WG2281014 Bromoform ND 0.0420 1 05/06/2024 13:30 WG2281014 Bromomethane ND 0.0210 1 05/06/2024 13:30 WG2281014 n-Butylbenzene 0.178 0.0210 1 05/06/2024 13:30 WG2281014 sec-Butylbenzene 0.0991 0.0210 1 05/06/2024 13:30 WG2281014 tert-Butylbenzene ND 0.00840 1 05/06/2024 13:30 WG2281014 Carbon tetrachloride ND 0.00840 1 05/06/2024 13:30 WG2281014 Chlorobenzene ND 0.00420 1 05/06/2024 13:30 WG2281014 Chlorodibromomethane ND 0.00420 1 05/06/2024 13:30 WG2281014 Chloroethane ND J3 0.00840 1 05/06/2024 13:30 WG2281014 Chloroform ND 0.00420 1 05/06/2024 13:30 WG2281014 Chloromethane ND 0.0210 1 05/06/2024 13:30 WG2281014 2-Chlorotoluene ND 0.00420 1 05/06/2024 13:30 WG2281014 4-Chlorotoluene ND 0.00840 1 05/06/2024 13:30 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0420 1 05/06/2024 13:30 WG2281014 1,2-Dibromoethane ND 0.00420 1 05/06/2024 13:30 WG2281014 Dibromomethane ND 0.00840 1 05/06/2024 13:30 WG2281014 1,2-Dichlorobenzene ND 0.00840 1 05/06/2024 13:30 WG2281014 1,3-Dichlorobenzene ND 0.00840 1 05/06/2024 13:30 WG2281014 1,4-Dichlorobenzene ND 0.00840 1 05/06/2024 13:30 WG2281014 Dichlorodifluoromethane ND 0.00840 1 05/06/2024 13:30 WG2281014 1,1-Dichloroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 1,2-Dichloroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 1,1-Dichloroethene ND 0.00420 1 05/06/2024 13:30 WG2281014 cis-1,2-Dichloroethene ND 0.00420 1 05/06/2024 13:30 WG2281014 trans-1,2-Dichloroethene ND 0.00840 1 05/06/2024 13:30 WG2281014 1,2-Dichloropropane ND 0.00840 1 05/06/2024 13:30 WG2281014 1,1-Dichloropropene ND 0.00420 1 05/06/2024 13:30 WG2281014 1,3-Dichloropropane ND 0.00840 1 05/06/2024 13:30 WG2281014 cis-1,3-Dichloropropene ND 0.00420 1 05/06/2024 13:30 WG2281014 trans-1,3-Dichloropropene ND 0.00840 1 05/06/2024 13:30 WG2281014 2,2-Dichloropropane ND 0.00420 1 05/06/2024 13:30 WG2281014 Di-isopropyl ether ND 0.00168 1 05/06/2024 13:30 WG2281014 Ethylbenzene 0.0469 0.00420 1 05/06/2024 13:30 WG2281014 Hexachloro-1,3-butadiene ND 0.0420 1 05/06/2024 13:30 WG2281014 Isopropylbenzene 0.0517 0.00420 1 05/06/2024 13:30 WG2281014 p-Isopropyltoluene 0.126 0.00840 1 05/06/2024 13:30 WG2281014 2-Butanone (MEK)ND 0.168 1 05/06/2024 13:30 WG2281014 Methylene Chloride ND 0.0420 1 05/06/2024 13:30 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0420 1 05/06/2024 13:30 WG2281014 Methyl tert-butyl ether ND 0.00168 1 05/06/2024 13:30 WG2281014 Naphthalene 0.338 0.0210 1 05/06/2024 13:30 WG2281014 n-Propylbenzene 0.124 0.00840 1 05/06/2024 13:30 WG2281014 Styrene ND 0.0210 1 05/06/2024 13:30 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 19 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 19 of 58 SAMPLE RESULTS - 18 L1732554 SB-7 (2) 4-9' Collected date/time: 04/30/24 12:03 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 Tetrachloroethene ND 0.00420 1 05/06/2024 13:30 WG2281014 Toluene 0.0973 0.00840 1 05/06/2024 13:30 WG2281014 1,2,3-Trichlorobenzene ND 0.0210 1 05/06/2024 13:30 WG2281014 1,2,4-Trichlorobenzene ND 0.0210 1 05/06/2024 13:30 WG2281014 1,1,1-Trichloroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 1,1,2-Trichloroethane ND 0.00420 1 05/06/2024 13:30 WG2281014 Trichloroethene ND 0.00168 1 05/06/2024 13:30 WG2281014 Trichlorofluoromethane ND 0.00420 1 05/06/2024 13:30 WG2281014 1,2,3-Trichloropropane ND 0.0210 1 05/06/2024 13:30 WG2281014 1,2,4-Trimethylbenzene 0.380 0.00840 1 05/06/2024 13:30 WG2281014 1,2,3-Trimethylbenzene 0.724 0.00840 1 05/06/2024 13:30 WG2281014 1,3,5-Trimethylbenzene 0.534 0.00840 1 05/06/2024 13:30 WG2281014 Vinyl chloride ND 0.00420 1 05/06/2024 13:30 WG2281014 Xylenes, Total 0.635 0.0109 1 05/06/2024 13:30 WG2281014 (S) Toluene-d8 111 75.0-131 05/06/2024 13:30 WG2281014 (S) 4-Bromofluorobenzene 130 67.0-138 05/06/2024 13:30 WG2281014 (S) 1,2-Dichloroethane-d4 91.8 70.0-130 05/06/2024 13:30 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00738 1 05/09/2024 17:13 WG2283063 Acenaphthene ND 0.00738 1 05/09/2024 17:13 WG2283063 Acenaphthylene ND 0.00738 1 05/09/2024 17:13 WG2283063 Benzo(a)anthracene ND 0.00738 1 05/09/2024 17:13 WG2283063 Benzo(a)pyrene ND 0.00738 1 05/09/2024 17:13 WG2283063 Benzo(b)fluoranthene ND 0.00738 1 05/09/2024 17:13 WG2283063 Benzo(g,h,i)perylene ND 0.00738 1 05/09/2024 17:13 WG2283063 Benzo(k)fluoranthene ND 0.00738 1 05/09/2024 17:13 WG2283063 Chrysene ND 0.00738 1 05/09/2024 17:13 WG2283063 Dibenz(a,h)anthracene ND 0.00738 1 05/09/2024 17:13 WG2283063 Fluoranthene ND 0.00738 1 05/09/2024 17:13 WG2283063 Fluorene ND 0.00738 1 05/09/2024 17:13 WG2283063 Indeno(1,2,3-cd)pyrene ND 0.00738 1 05/09/2024 17:13 WG2283063 Naphthalene 0.0252 0.0246 1 05/09/2024 17:13 WG2283063 Phenanthrene ND 0.00738 1 05/09/2024 17:13 WG2283063 Pyrene 0.00887 0.00738 1 05/09/2024 17:13 WG2283063 1-Methylnaphthalene 0.0407 0.0246 1 05/09/2024 17:13 WG2283063 2-Methylnaphthalene 0.0704 0.0246 1 05/09/2024 17:13 WG2283063 2-Chloronaphthalene ND 0.0246 1 05/09/2024 17:13 WG2283063 (S) p-Terphenyl-d14 70.7 23.0-120 05/09/2024 17:13 WG2283063 (S) Nitrobenzene-d5 67.8 14.0-149 05/09/2024 17:13 WG2283063 (S) 2-Fluorobiphenyl 51.9 34.0-125 05/09/2024 17:13 WG2283063 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 20 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 20 of 58 SAMPLE RESULTS - 19 L1732554 SB-7 (2) 9-13' Collected date/time: 04/30/24 12:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.0 1 05/04/2024 12:22 WG2280138 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0849 1 05/06/2024 13:51 WG2281014 Acrylonitrile ND 0.0212 1 05/06/2024 13:51 WG2281014 Benzene 0.00321 0.00170 1 05/06/2024 13:51 WG2281014 Bromobenzene ND 0.0212 1 05/06/2024 13:51 WG2281014 Bromodichloromethane ND 0.00425 1 05/06/2024 13:51 WG2281014 Bromoform ND 0.0425 1 05/06/2024 13:51 WG2281014 Bromomethane ND 0.0212 1 05/06/2024 13:51 WG2281014 n-Butylbenzene 0.164 0.0212 1 05/06/2024 13:51 WG2281014 sec-Butylbenzene 0.0985 0.0212 1 05/06/2024 13:51 WG2281014 tert-Butylbenzene ND 0.00849 1 05/06/2024 13:51 WG2281014 Carbon tetrachloride ND 0.00849 1 05/06/2024 13:51 WG2281014 Chlorobenzene ND 0.00425 1 05/06/2024 13:51 WG2281014 Chlorodibromomethane ND 0.00425 1 05/06/2024 13:51 WG2281014 Chloroethane ND J3 0.00849 1 05/06/2024 13:51 WG2281014 Chloroform ND 0.00425 1 05/06/2024 13:51 WG2281014 Chloromethane ND 0.0212 1 05/06/2024 13:51 WG2281014 2-Chlorotoluene ND 0.00425 1 05/06/2024 13:51 WG2281014 4-Chlorotoluene ND 0.00849 1 05/06/2024 13:51 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0425 1 05/06/2024 13:51 WG2281014 1,2-Dibromoethane ND 0.00425 1 05/06/2024 13:51 WG2281014 Dibromomethane ND 0.00849 1 05/06/2024 13:51 WG2281014 1,2-Dichlorobenzene ND 0.00849 1 05/06/2024 13:51 WG2281014 1,3-Dichlorobenzene ND 0.00849 1 05/06/2024 13:51 WG2281014 1,4-Dichlorobenzene ND 0.00849 1 05/06/2024 13:51 WG2281014 Dichlorodifluoromethane ND 0.00849 1 05/06/2024 13:51 WG2281014 1,1-Dichloroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 1,2-Dichloroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 1,1-Dichloroethene ND 0.00425 1 05/06/2024 13:51 WG2281014 cis-1,2-Dichloroethene ND 0.00425 1 05/06/2024 13:51 WG2281014 trans-1,2-Dichloroethene ND 0.00849 1 05/06/2024 13:51 WG2281014 1,2-Dichloropropane ND 0.00849 1 05/06/2024 13:51 WG2281014 1,1-Dichloropropene ND 0.00425 1 05/06/2024 13:51 WG2281014 1,3-Dichloropropane ND 0.00849 1 05/06/2024 13:51 WG2281014 cis-1,3-Dichloropropene ND 0.00425 1 05/06/2024 13:51 WG2281014 trans-1,3-Dichloropropene ND 0.00849 1 05/06/2024 13:51 WG2281014 2,2-Dichloropropane ND 0.00425 1 05/06/2024 13:51 WG2281014 Di-isopropyl ether ND 0.00170 1 05/06/2024 13:51 WG2281014 Ethylbenzene 0.112 0.00425 1 05/06/2024 13:51 WG2281014 Hexachloro-1,3-butadiene ND 0.0425 1 05/06/2024 13:51 WG2281014 Isopropylbenzene 0.0557 0.00425 1 05/06/2024 13:51 WG2281014 p-Isopropyltoluene 0.123 0.00849 1 05/06/2024 13:51 WG2281014 2-Butanone (MEK)ND 0.170 1 05/06/2024 13:51 WG2281014 Methylene Chloride ND 0.0425 1 05/06/2024 13:51 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0425 1 05/06/2024 13:51 WG2281014 Methyl tert-butyl ether ND 0.00170 1 05/06/2024 13:51 WG2281014 Naphthalene 0.348 0.0212 1 05/06/2024 13:51 WG2281014 n-Propylbenzene 0.163 0.00849 1 05/06/2024 13:51 WG2281014 Styrene ND 0.0212 1 05/06/2024 13:51 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 21 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 21 of 58 SAMPLE RESULTS - 19 L1732554 SB-7 (2) 9-13' Collected date/time: 04/30/24 12:10 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 Tetrachloroethene ND 0.00425 1 05/06/2024 13:51 WG2281014 Toluene 0.119 0.00849 1 05/06/2024 13:51 WG2281014 1,2,3-Trichlorobenzene ND 0.0212 1 05/06/2024 13:51 WG2281014 1,2,4-Trichlorobenzene ND 0.0212 1 05/06/2024 13:51 WG2281014 1,1,1-Trichloroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 1,1,2-Trichloroethane ND 0.00425 1 05/06/2024 13:51 WG2281014 Trichloroethene ND 0.00170 1 05/06/2024 13:51 WG2281014 Trichlorofluoromethane ND 0.00425 1 05/06/2024 13:51 WG2281014 1,2,3-Trichloropropane ND 0.0212 1 05/06/2024 13:51 WG2281014 1,2,4-Trimethylbenzene 1.60 0.00849 1 05/06/2024 13:51 WG2281014 1,2,3-Trimethylbenzene 0.714 0.00849 1 05/06/2024 13:51 WG2281014 1,3,5-Trimethylbenzene 0.528 0.00849 1 05/06/2024 13:51 WG2281014 Vinyl chloride ND 0.00425 1 05/06/2024 13:51 WG2281014 Xylenes, Total 1.33 0.0110 1 05/06/2024 13:51 WG2281014 (S) Toluene-d8 114 75.0-131 05/06/2024 13:51 WG2281014 (S) 4-Bromofluorobenzene 149 J1 67.0-138 05/06/2024 13:51 WG2281014 (S) 1,2-Dichloroethane-d4 90.0 70.0-130 05/06/2024 13:51 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00750 1 05/09/2024 17:31 WG2283063 Acenaphthene ND 0.00750 1 05/09/2024 17:31 WG2283063 Acenaphthylene ND 0.00750 1 05/09/2024 17:31 WG2283063 Benzo(a)anthracene ND 0.00750 1 05/09/2024 17:31 WG2283063 Benzo(a)pyrene ND 0.00750 1 05/09/2024 17:31 WG2283063 Benzo(b)fluoranthene ND 0.00750 1 05/09/2024 17:31 WG2283063 Benzo(g,h,i)perylene ND 0.00750 1 05/09/2024 17:31 WG2283063 Benzo(k)fluoranthene ND 0.00750 1 05/09/2024 17:31 WG2283063 Chrysene ND 0.00750 1 05/09/2024 17:31 WG2283063 Dibenz(a,h)anthracene ND 0.00750 1 05/09/2024 17:31 WG2283063 Fluoranthene ND 0.00750 1 05/09/2024 17:31 WG2283063 Fluorene ND 0.00750 1 05/09/2024 17:31 WG2283063 Indeno(1,2,3-cd)pyrene ND 0.00750 1 05/09/2024 17:31 WG2283063 Naphthalene 0.0251 0.0250 1 05/09/2024 17:31 WG2283063 Phenanthrene ND 0.00750 1 05/09/2024 17:31 WG2283063 Pyrene 0.00889 0.00750 1 05/09/2024 17:31 WG2283063 1-Methylnaphthalene 0.0389 0.0250 1 05/09/2024 17:31 WG2283063 2-Methylnaphthalene 0.0568 0.0250 1 05/09/2024 17:31 WG2283063 2-Chloronaphthalene ND 0.0250 1 05/09/2024 17:31 WG2283063 (S) p-Terphenyl-d14 66.7 23.0-120 05/09/2024 17:31 WG2283063 (S) Nitrobenzene-d5 87.5 14.0-149 05/09/2024 17:31 WG2283063 (S) 2-Fluorobiphenyl 56.5 34.0-125 05/09/2024 17:31 WG2283063 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 22 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 22 of 58 SAMPLE RESULTS - 25 L1732554 SB-10 (2) 5-8' Collected date/time: 04/30/24 13:14 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.5 1 05/04/2024 12:22 WG2280138 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0783 1 05/06/2024 14:11 WG2281014 Acrylonitrile ND 0.0196 1 05/06/2024 14:11 WG2281014 Benzene 0.0809 0.00157 1 05/06/2024 14:11 WG2281014 Bromobenzene ND 0.0196 1 05/06/2024 14:11 WG2281014 Bromodichloromethane ND 0.00392 1 05/06/2024 14:11 WG2281014 Bromoform ND 0.0392 1 05/06/2024 14:11 WG2281014 Bromomethane ND 0.0196 1 05/06/2024 14:11 WG2281014 n-Butylbenzene 0.614 0.0196 1 05/06/2024 14:11 WG2281014 sec-Butylbenzene 0.246 0.0196 1 05/06/2024 14:11 WG2281014 tert-Butylbenzene ND 0.00783 1 05/06/2024 14:11 WG2281014 Carbon tetrachloride ND 0.00783 1 05/06/2024 14:11 WG2281014 Chlorobenzene ND 0.00392 1 05/06/2024 14:11 WG2281014 Chlorodibromomethane ND 0.00392 1 05/06/2024 14:11 WG2281014 Chloroethane ND J3 0.00783 1 05/06/2024 14:11 WG2281014 Chloroform ND 0.00392 1 05/06/2024 14:11 WG2281014 Chloromethane ND 0.0196 1 05/06/2024 14:11 WG2281014 2-Chlorotoluene ND 0.00392 1 05/06/2024 14:11 WG2281014 4-Chlorotoluene ND 0.00783 1 05/06/2024 14:11 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0392 1 05/06/2024 14:11 WG2281014 1,2-Dibromoethane ND 0.00392 1 05/06/2024 14:11 WG2281014 Dibromomethane ND 0.00783 1 05/06/2024 14:11 WG2281014 1,2-Dichlorobenzene ND 0.00783 1 05/06/2024 14:11 WG2281014 1,3-Dichlorobenzene ND 0.00783 1 05/06/2024 14:11 WG2281014 1,4-Dichlorobenzene ND 0.00783 1 05/06/2024 14:11 WG2281014 Dichlorodifluoromethane ND 0.00783 1 05/06/2024 14:11 WG2281014 1,1-Dichloroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 1,2-Dichloroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 1,1-Dichloroethene ND 0.00392 1 05/06/2024 14:11 WG2281014 cis-1,2-Dichloroethene ND 0.00392 1 05/06/2024 14:11 WG2281014 trans-1,2-Dichloroethene ND 0.00783 1 05/06/2024 14:11 WG2281014 1,2-Dichloropropane ND 0.00783 1 05/06/2024 14:11 WG2281014 1,1-Dichloropropene ND 0.00392 1 05/06/2024 14:11 WG2281014 1,3-Dichloropropane ND 0.00783 1 05/06/2024 14:11 WG2281014 cis-1,3-Dichloropropene ND 0.00392 1 05/06/2024 14:11 WG2281014 trans-1,3-Dichloropropene ND 0.00783 1 05/06/2024 14:11 WG2281014 2,2-Dichloropropane ND 0.00392 1 05/06/2024 14:11 WG2281014 Di-isopropyl ether ND 0.00157 1 05/06/2024 14:11 WG2281014 Ethylbenzene 0.713 0.00392 1 05/06/2024 14:11 WG2281014 Hexachloro-1,3-butadiene ND 0.0392 1 05/06/2024 14:11 WG2281014 Isopropylbenzene 0.149 0.00392 1 05/06/2024 14:11 WG2281014 p-Isopropyltoluene 0.197 0.00783 1 05/06/2024 14:11 WG2281014 2-Butanone (MEK)ND 0.157 1 05/06/2024 14:11 WG2281014 Methylene Chloride ND 0.0392 1 05/06/2024 14:11 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0392 1 05/06/2024 14:11 WG2281014 Methyl tert-butyl ether ND 0.00157 1 05/06/2024 14:11 WG2281014 Naphthalene 0.343 0.0196 1 05/06/2024 14:11 WG2281014 n-Propylbenzene 0.501 0.00783 1 05/06/2024 14:11 WG2281014 Styrene ND 0.0196 1 05/06/2024 14:11 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 23 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 23 of 58 SAMPLE RESULTS - 25 L1732554 SB-10 (2) 5-8' Collected date/time: 04/30/24 13:14 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 Tetrachloroethene ND 0.00392 1 05/06/2024 14:11 WG2281014 Toluene 1.55 0.00783 1 05/06/2024 14:11 WG2281014 1,2,3-Trichlorobenzene ND 0.0196 1 05/06/2024 14:11 WG2281014 1,2,4-Trichlorobenzene ND 0.0196 1 05/06/2024 14:11 WG2281014 1,1,1-Trichloroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 1,1,2-Trichloroethane ND 0.00392 1 05/06/2024 14:11 WG2281014 Trichloroethene ND 0.00157 1 05/06/2024 14:11 WG2281014 Trichlorofluoromethane ND 0.00392 1 05/06/2024 14:11 WG2281014 1,2,3-Trichloropropane ND 0.0196 1 05/06/2024 14:11 WG2281014 1,2,4-Trimethylbenzene 2.57 0.00783 1 05/06/2024 14:11 WG2281014 1,2,3-Trimethylbenzene 1.11 0.00783 1 05/06/2024 14:11 WG2281014 1,3,5-Trimethylbenzene 0.823 0.00783 1 05/06/2024 14:11 WG2281014 Vinyl chloride ND 0.00392 1 05/06/2024 14:11 WG2281014 Xylenes, Total 4.83 0.0102 1 05/06/2024 14:11 WG2281014 (S) Toluene-d8 113 75.0-131 05/06/2024 14:11 WG2281014 (S) 4-Bromofluorobenzene 137 67.0-138 05/06/2024 14:11 WG2281014 (S) 1,2-Dichloroethane-d4 90.5 70.0-130 05/06/2024 14:11 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00745 1 05/09/2024 17:49 WG2283063 Acenaphthene 0.0394 0.00745 1 05/09/2024 17:49 WG2283063 Acenaphthylene ND 0.00745 1 05/09/2024 17:49 WG2283063 Benzo(a)anthracene ND 0.00745 1 05/09/2024 17:49 WG2283063 Benzo(a)pyrene ND 0.00745 1 05/09/2024 17:49 WG2283063 Benzo(b)fluoranthene ND 0.00745 1 05/09/2024 17:49 WG2283063 Benzo(g,h,i)perylene ND 0.00745 1 05/09/2024 17:49 WG2283063 Benzo(k)fluoranthene ND 0.00745 1 05/09/2024 17:49 WG2283063 Chrysene ND 0.00745 1 05/09/2024 17:49 WG2283063 Dibenz(a,h)anthracene ND 0.00745 1 05/09/2024 17:49 WG2283063 Fluoranthene ND 0.00745 1 05/09/2024 17:49 WG2283063 Fluorene 0.0515 0.00745 1 05/09/2024 17:49 WG2283063 Indeno(1,2,3-cd)pyrene ND 0.00745 1 05/09/2024 17:49 WG2283063 Naphthalene 0.264 0.0248 1 05/09/2024 17:49 WG2283063 Phenanthrene 0.0255 0.00745 1 05/09/2024 17:49 WG2283063 Pyrene 0.0567 0.00745 1 05/09/2024 17:49 WG2283063 1-Methylnaphthalene 0.390 0.0248 1 05/09/2024 17:49 WG2283063 2-Methylnaphthalene 0.571 0.0248 1 05/09/2024 17:49 WG2283063 2-Chloronaphthalene ND 0.0248 1 05/09/2024 17:49 WG2283063 (S) p-Terphenyl-d14 69.7 23.0-120 05/09/2024 17:49 WG2283063 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/09/2024 17:49 WG2283063 (S) 2-Fluorobiphenyl 53.0 34.0-125 05/09/2024 17:49 WG2283063 Sample Narrative: L1732554-25 WG2283063: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 24 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 24 of 58 SAMPLE RESULTS - 26 L1732554 SB-10 (2) 8-14' Collected date/time: 04/30/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 77.7 1 05/04/2024 12:22 WG2280138 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0787 1 05/06/2024 14:31 WG2281014 Acrylonitrile ND 0.0197 1 05/06/2024 14:31 WG2281014 Benzene 0.0910 0.00157 1 05/06/2024 14:31 WG2281014 Bromobenzene ND 0.0197 1 05/06/2024 14:31 WG2281014 Bromodichloromethane ND 0.00394 1 05/06/2024 14:31 WG2281014 Bromoform ND 0.0394 1 05/06/2024 14:31 WG2281014 Bromomethane ND 0.0197 1 05/06/2024 14:31 WG2281014 n-Butylbenzene 0.929 0.0197 1 05/06/2024 14:31 WG2281014 sec-Butylbenzene 0.390 0.0197 1 05/06/2024 14:31 WG2281014 tert-Butylbenzene ND 0.00787 1 05/06/2024 14:31 WG2281014 Carbon tetrachloride ND 0.00787 1 05/06/2024 14:31 WG2281014 Chlorobenzene ND 0.00394 1 05/06/2024 14:31 WG2281014 Chlorodibromomethane ND 0.00394 1 05/06/2024 14:31 WG2281014 Chloroethane ND J3 0.00787 1 05/06/2024 14:31 WG2281014 Chloroform ND 0.00394 1 05/06/2024 14:31 WG2281014 Chloromethane ND 0.0197 1 05/06/2024 14:31 WG2281014 2-Chlorotoluene ND 0.00394 1 05/06/2024 14:31 WG2281014 4-Chlorotoluene ND 0.00787 1 05/06/2024 14:31 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0394 1 05/06/2024 14:31 WG2281014 1,2-Dibromoethane ND 0.00394 1 05/06/2024 14:31 WG2281014 Dibromomethane ND 0.00787 1 05/06/2024 14:31 WG2281014 1,2-Dichlorobenzene ND 0.00787 1 05/06/2024 14:31 WG2281014 1,3-Dichlorobenzene ND 0.00787 1 05/06/2024 14:31 WG2281014 1,4-Dichlorobenzene ND 0.00787 1 05/06/2024 14:31 WG2281014 Dichlorodifluoromethane ND 0.00787 1 05/06/2024 14:31 WG2281014 1,1-Dichloroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 1,2-Dichloroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 1,1-Dichloroethene ND 0.00394 1 05/06/2024 14:31 WG2281014 cis-1,2-Dichloroethene ND 0.00394 1 05/06/2024 14:31 WG2281014 trans-1,2-Dichloroethene ND 0.00787 1 05/06/2024 14:31 WG2281014 1,2-Dichloropropane ND 0.00787 1 05/06/2024 14:31 WG2281014 1,1-Dichloropropene ND 0.00394 1 05/06/2024 14:31 WG2281014 1,3-Dichloropropane ND 0.00787 1 05/06/2024 14:31 WG2281014 cis-1,3-Dichloropropene ND 0.00394 1 05/06/2024 14:31 WG2281014 trans-1,3-Dichloropropene ND 0.00787 1 05/06/2024 14:31 WG2281014 2,2-Dichloropropane ND 0.00394 1 05/06/2024 14:31 WG2281014 Di-isopropyl ether ND 0.00157 1 05/06/2024 14:31 WG2281014 Ethylbenzene 0.905 0.00394 1 05/06/2024 14:31 WG2281014 Hexachloro-1,3-butadiene ND 0.0394 1 05/06/2024 14:31 WG2281014 Isopropylbenzene 0.231 0.00394 1 05/06/2024 14:31 WG2281014 p-Isopropyltoluene 0.315 0.00787 1 05/06/2024 14:31 WG2281014 2-Butanone (MEK)ND 0.157 1 05/06/2024 14:31 WG2281014 Methylene Chloride ND 0.0394 1 05/06/2024 14:31 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0394 1 05/06/2024 14:31 WG2281014 Methyl tert-butyl ether ND 0.00157 1 05/06/2024 14:31 WG2281014 Naphthalene 0.491 0.0197 1 05/06/2024 14:31 WG2281014 n-Propylbenzene 0.759 0.00787 1 05/06/2024 14:31 WG2281014 Styrene ND 0.0197 1 05/06/2024 14:31 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 25 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 25 of 58 SAMPLE RESULTS - 26 L1732554 SB-10 (2) 8-14' Collected date/time: 04/30/24 13:20 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 Tetrachloroethene ND 0.00394 1 05/06/2024 14:31 WG2281014 Toluene 1.78 0.00787 1 05/06/2024 14:31 WG2281014 1,2,3-Trichlorobenzene ND 0.0197 1 05/06/2024 14:31 WG2281014 1,2,4-Trichlorobenzene ND 0.0197 1 05/06/2024 14:31 WG2281014 1,1,1-Trichloroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 1,1,2-Trichloroethane ND 0.00394 1 05/06/2024 14:31 WG2281014 Trichloroethene ND 0.00157 1 05/06/2024 14:31 WG2281014 Trichlorofluoromethane ND 0.00394 1 05/06/2024 14:31 WG2281014 1,2,3-Trichloropropane ND 0.0197 1 05/06/2024 14:31 WG2281014 1,2,4-Trimethylbenzene 3.51 0.00787 1 05/06/2024 14:31 WG2281014 1,2,3-Trimethylbenzene 1.67 0.00787 1 05/06/2024 14:31 WG2281014 1,3,5-Trimethylbenzene 1.25 0.00787 1 05/06/2024 14:31 WG2281014 Vinyl chloride ND 0.00394 1 05/06/2024 14:31 WG2281014 Xylenes, Total 6.66 0.0102 1 05/06/2024 14:31 WG2281014 (S) Toluene-d8 118 75.0-131 05/06/2024 14:31 WG2281014 (S) 4-Bromofluorobenzene 149 J1 67.0-138 05/06/2024 14:31 WG2281014 (S) 1,2-Dichloroethane-d4 92.4 70.0-130 05/06/2024 14:31 WG2281014 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00772 1 05/09/2024 18:07 WG2283063 Acenaphthene ND 0.00772 1 05/09/2024 18:07 WG2283063 Acenaphthylene ND 0.00772 1 05/09/2024 18:07 WG2283063 Benzo(a)anthracene ND 0.00772 1 05/09/2024 18:07 WG2283063 Benzo(a)pyrene ND 0.00772 1 05/09/2024 18:07 WG2283063 Benzo(b)fluoranthene ND 0.00772 1 05/09/2024 18:07 WG2283063 Benzo(g,h,i)perylene ND 0.00772 1 05/09/2024 18:07 WG2283063 Benzo(k)fluoranthene ND 0.00772 1 05/09/2024 18:07 WG2283063 Chrysene ND 0.00772 1 05/09/2024 18:07 WG2283063 Dibenz(a,h)anthracene ND 0.00772 1 05/09/2024 18:07 WG2283063 Fluoranthene ND 0.00772 1 05/09/2024 18:07 WG2283063 Fluorene ND 0.00772 1 05/09/2024 18:07 WG2283063 Indeno(1,2,3-cd)pyrene ND 0.00772 1 05/09/2024 18:07 WG2283063 Naphthalene 0.0278 0.0257 1 05/09/2024 18:07 WG2283063 Phenanthrene 0.0236 0.00772 1 05/09/2024 18:07 WG2283063 Pyrene ND 0.00772 1 05/09/2024 18:07 WG2283063 1-Methylnaphthalene 0.0330 0.0257 1 05/09/2024 18:07 WG2283063 2-Methylnaphthalene 0.0548 0.0257 1 05/09/2024 18:07 WG2283063 2-Chloronaphthalene ND 0.0257 1 05/09/2024 18:07 WG2283063 (S) p-Terphenyl-d14 74.9 23.0-120 05/09/2024 18:07 WG2283063 (S) Nitrobenzene-d5 106 14.0-149 05/09/2024 18:07 WG2283063 (S) 2-Fluorobiphenyl 61.8 34.0-125 05/09/2024 18:07 WG2283063 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 26 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 26 of 58 SAMPLE RESULTS - 30 L1732554 SB-15 0-1' Collected date/time: 04/30/24 15:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.4 1 05/04/2024 12:22 WG2280138 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0707 1 05/06/2024 14:51 WG2281014 Acrylonitrile ND 0.0177 1 05/06/2024 14:51 WG2281014 Benzene ND 0.00141 1 05/06/2024 14:51 WG2281014 Bromobenzene ND 0.0177 1 05/06/2024 14:51 WG2281014 Bromodichloromethane ND 0.00354 1 05/06/2024 14:51 WG2281014 Bromoform ND 0.0354 1 05/06/2024 14:51 WG2281014 Bromomethane ND 0.0177 1 05/06/2024 14:51 WG2281014 n-Butylbenzene ND 0.0177 1 05/06/2024 14:51 WG2281014 sec-Butylbenzene ND 0.0177 1 05/06/2024 14:51 WG2281014 tert-Butylbenzene ND 0.00707 1 05/06/2024 14:51 WG2281014 Carbon tetrachloride ND 0.00707 1 05/06/2024 14:51 WG2281014 Chlorobenzene ND 0.00354 1 05/06/2024 14:51 WG2281014 Chlorodibromomethane ND 0.00354 1 05/06/2024 14:51 WG2281014 Chloroethane ND J3 0.00707 1 05/06/2024 14:51 WG2281014 Chloroform ND 0.00354 1 05/06/2024 14:51 WG2281014 Chloromethane ND 0.0177 1 05/06/2024 14:51 WG2281014 2-Chlorotoluene ND 0.00354 1 05/06/2024 14:51 WG2281014 4-Chlorotoluene ND 0.00707 1 05/06/2024 14:51 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0354 1 05/06/2024 14:51 WG2281014 1,2-Dibromoethane ND 0.00354 1 05/06/2024 14:51 WG2281014 Dibromomethane ND 0.00707 1 05/06/2024 14:51 WG2281014 1,2-Dichlorobenzene ND 0.00707 1 05/06/2024 14:51 WG2281014 1,3-Dichlorobenzene ND 0.00707 1 05/06/2024 14:51 WG2281014 1,4-Dichlorobenzene ND 0.00707 1 05/06/2024 14:51 WG2281014 Dichlorodifluoromethane ND 0.00707 1 05/06/2024 14:51 WG2281014 1,1-Dichloroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 1,2-Dichloroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 1,1-Dichloroethene ND 0.00354 1 05/06/2024 14:51 WG2281014 cis-1,2-Dichloroethene ND 0.00354 1 05/06/2024 14:51 WG2281014 trans-1,2-Dichloroethene ND 0.00707 1 05/06/2024 14:51 WG2281014 1,2-Dichloropropane ND 0.00707 1 05/06/2024 14:51 WG2281014 1,1-Dichloropropene ND 0.00354 1 05/06/2024 14:51 WG2281014 1,3-Dichloropropane ND 0.00707 1 05/06/2024 14:51 WG2281014 cis-1,3-Dichloropropene ND 0.00354 1 05/06/2024 14:51 WG2281014 trans-1,3-Dichloropropene ND 0.00707 1 05/06/2024 14:51 WG2281014 2,2-Dichloropropane ND 0.00354 1 05/06/2024 14:51 WG2281014 Di-isopropyl ether ND 0.00141 1 05/06/2024 14:51 WG2281014 Ethylbenzene ND 0.00354 1 05/06/2024 14:51 WG2281014 Hexachloro-1,3-butadiene ND 0.0354 1 05/06/2024 14:51 WG2281014 Isopropylbenzene ND 0.00354 1 05/06/2024 14:51 WG2281014 p-Isopropyltoluene ND 0.00707 1 05/06/2024 14:51 WG2281014 2-Butanone (MEK)ND 0.141 1 05/06/2024 14:51 WG2281014 Methylene Chloride ND 0.0354 1 05/06/2024 14:51 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0354 1 05/06/2024 14:51 WG2281014 Methyl tert-butyl ether ND 0.00141 1 05/06/2024 14:51 WG2281014 Naphthalene ND 0.0177 1 05/06/2024 14:51 WG2281014 n-Propylbenzene ND 0.00707 1 05/08/2024 18:54 WG2282647 Styrene ND 0.0177 1 05/06/2024 14:51 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 27 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 27 of 58 SAMPLE RESULTS - 30 L1732554 SB-15 0-1' Collected date/time: 04/30/24 15:18 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 Tetrachloroethene ND 0.00354 1 05/06/2024 14:51 WG2281014 Toluene ND 0.00707 1 05/08/2024 18:54 WG2282647 1,2,3-Trichlorobenzene ND 0.0177 1 05/06/2024 14:51 WG2281014 1,2,4-Trichlorobenzene ND 0.0177 1 05/06/2024 14:51 WG2281014 1,1,1-Trichloroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 1,1,2-Trichloroethane ND 0.00354 1 05/06/2024 14:51 WG2281014 Trichloroethene ND 0.00141 1 05/06/2024 14:51 WG2281014 Trichlorofluoromethane ND 0.00354 1 05/06/2024 14:51 WG2281014 1,2,3-Trichloropropane ND 0.0177 1 05/06/2024 14:51 WG2281014 1,2,4-Trimethylbenzene ND 0.00707 1 05/08/2024 18:54 WG2282647 1,2,3-Trimethylbenzene ND 0.00707 1 05/06/2024 14:51 WG2281014 1,3,5-Trimethylbenzene ND 0.00707 1 05/08/2024 18:54 WG2282647 Vinyl chloride ND 0.00354 1 05/06/2024 14:51 WG2281014 Xylenes, Total ND 0.00919 1 05/08/2024 18:54 WG2282647 (S) Toluene-d8 113 75.0-131 05/06/2024 14:51 WG2281014 (S) Toluene-d8 110 75.0-131 05/08/2024 18:54 WG2282647 (S) 4-Bromofluorobenzene 103 67.0-138 05/06/2024 14:51 WG2281014 (S) 4-Bromofluorobenzene 96.2 67.0-138 05/08/2024 18:54 WG2282647 (S) 1,2-Dichloroethane-d4 90.6 70.0-130 05/06/2024 14:51 WG2281014 (S) 1,2-Dichloroethane-d4 91.9 70.0-130 05/08/2024 18:54 WG2282647 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00711 1 05/09/2024 18:25 WG2283063 Acenaphthene ND 0.00711 1 05/09/2024 18:25 WG2283063 Acenaphthylene ND 0.00711 1 05/09/2024 18:25 WG2283063 Benzo(a)anthracene ND 0.00711 1 05/09/2024 18:25 WG2283063 Benzo(a)pyrene ND 0.00711 1 05/09/2024 18:25 WG2283063 Benzo(b)fluoranthene ND 0.00711 1 05/09/2024 18:25 WG2283063 Benzo(g,h,i)perylene ND 0.00711 1 05/09/2024 18:25 WG2283063 Benzo(k)fluoranthene ND 0.00711 1 05/09/2024 18:25 WG2283063 Chrysene ND 0.00711 1 05/09/2024 18:25 WG2283063 Dibenz(a,h)anthracene ND 0.00711 1 05/09/2024 18:25 WG2283063 Fluoranthene ND 0.00711 1 05/09/2024 18:25 WG2283063 Fluorene ND 0.00711 1 05/09/2024 18:25 WG2283063 Indeno(1,2,3-cd)pyrene ND 0.00711 1 05/09/2024 18:25 WG2283063 Naphthalene ND 0.0237 1 05/09/2024 18:25 WG2283063 Phenanthrene ND 0.00711 1 05/09/2024 18:25 WG2283063 Pyrene ND 0.00711 1 05/09/2024 18:25 WG2283063 1-Methylnaphthalene ND 0.0237 1 05/09/2024 18:25 WG2283063 2-Methylnaphthalene ND 0.0237 1 05/09/2024 18:25 WG2283063 2-Chloronaphthalene ND 0.0237 1 05/09/2024 18:25 WG2283063 (S) p-Terphenyl-d14 80.6 23.0-120 05/09/2024 18:25 WG2283063 (S) Nitrobenzene-d5 104 14.0-149 05/09/2024 18:25 WG2283063 (S) 2-Fluorobiphenyl 77.4 34.0-125 05/09/2024 18:25 WG2283063 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 28 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 28 of 58 SAMPLE RESULTS - 31 L1732554 SB-15 2-4' Collected date/time: 04/30/24 15:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.6 1 05/04/2024 12:22 WG2280138 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0758 1 05/06/2024 15:11 WG2281014 Acrylonitrile ND 0.0189 1 05/06/2024 15:11 WG2281014 Benzene ND 0.00152 1 05/06/2024 15:11 WG2281014 Bromobenzene ND 0.0189 1 05/06/2024 15:11 WG2281014 Bromodichloromethane ND 0.00379 1 05/06/2024 15:11 WG2281014 Bromoform ND 0.0379 1 05/06/2024 15:11 WG2281014 Bromomethane ND 0.0189 1 05/06/2024 15:11 WG2281014 n-Butylbenzene ND 0.0189 1 05/06/2024 15:11 WG2281014 sec-Butylbenzene ND 0.0189 1 05/06/2024 15:11 WG2281014 tert-Butylbenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 Carbon tetrachloride ND 0.00758 1 05/06/2024 15:11 WG2281014 Chlorobenzene ND 0.00379 1 05/06/2024 15:11 WG2281014 Chlorodibromomethane ND 0.00379 1 05/06/2024 15:11 WG2281014 Chloroethane ND J3 0.00758 1 05/06/2024 15:11 WG2281014 Chloroform ND 0.00379 1 05/06/2024 15:11 WG2281014 Chloromethane ND 0.0189 1 05/06/2024 15:11 WG2281014 2-Chlorotoluene ND 0.00379 1 05/06/2024 15:11 WG2281014 4-Chlorotoluene ND 0.00758 1 05/06/2024 15:11 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0379 1 05/06/2024 15:11 WG2281014 1,2-Dibromoethane ND 0.00379 1 05/06/2024 15:11 WG2281014 Dibromomethane ND 0.00758 1 05/06/2024 15:11 WG2281014 1,2-Dichlorobenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 1,3-Dichlorobenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 1,4-Dichlorobenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 Dichlorodifluoromethane ND 0.00758 1 05/06/2024 15:11 WG2281014 1,1-Dichloroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 1,2-Dichloroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 1,1-Dichloroethene ND 0.00379 1 05/06/2024 15:11 WG2281014 cis-1,2-Dichloroethene ND 0.00379 1 05/06/2024 15:11 WG2281014 trans-1,2-Dichloroethene ND 0.00758 1 05/06/2024 15:11 WG2281014 1,2-Dichloropropane ND 0.00758 1 05/06/2024 15:11 WG2281014 1,1-Dichloropropene ND 0.00379 1 05/06/2024 15:11 WG2281014 1,3-Dichloropropane ND 0.00758 1 05/06/2024 15:11 WG2281014 cis-1,3-Dichloropropene ND 0.00379 1 05/06/2024 15:11 WG2281014 trans-1,3-Dichloropropene ND 0.00758 1 05/06/2024 15:11 WG2281014 2,2-Dichloropropane ND 0.00379 1 05/06/2024 15:11 WG2281014 Di-isopropyl ether ND 0.00152 1 05/06/2024 15:11 WG2281014 Ethylbenzene ND 0.00379 1 05/06/2024 15:11 WG2281014 Hexachloro-1,3-butadiene ND 0.0379 1 05/06/2024 15:11 WG2281014 Isopropylbenzene ND 0.00379 1 05/06/2024 15:11 WG2281014 p-Isopropyltoluene ND 0.00758 1 05/06/2024 15:11 WG2281014 2-Butanone (MEK)ND 0.152 1 05/06/2024 15:11 WG2281014 Methylene Chloride ND 0.0379 1 05/06/2024 15:11 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0379 1 05/06/2024 15:11 WG2281014 Methyl tert-butyl ether ND 0.00152 1 05/06/2024 15:11 WG2281014 Naphthalene ND 0.0189 1 05/06/2024 15:11 WG2281014 n-Propylbenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 Styrene ND 0.0189 1 05/06/2024 15:11 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 29 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 29 of 58 SAMPLE RESULTS - 31 L1732554 SB-15 2-4' Collected date/time: 04/30/24 15:20 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 Tetrachloroethene ND 0.00379 1 05/06/2024 15:11 WG2281014 Toluene ND 0.00758 1 05/06/2024 15:11 WG2281014 1,2,3-Trichlorobenzene ND 0.0189 1 05/06/2024 15:11 WG2281014 1,2,4-Trichlorobenzene ND 0.0189 1 05/06/2024 15:11 WG2281014 1,1,1-Trichloroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 1,1,2-Trichloroethane ND 0.00379 1 05/06/2024 15:11 WG2281014 Trichloroethene ND 0.00152 1 05/06/2024 15:11 WG2281014 Trichlorofluoromethane ND 0.00379 1 05/06/2024 15:11 WG2281014 1,2,3-Trichloropropane ND 0.0189 1 05/06/2024 15:11 WG2281014 1,2,4-Trimethylbenzene ND 0.00758 1 05/08/2024 19:14 WG2282647 1,2,3-Trimethylbenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 1,3,5-Trimethylbenzene ND 0.00758 1 05/06/2024 15:11 WG2281014 Vinyl chloride ND 0.00379 1 05/06/2024 15:11 WG2281014 Xylenes, Total ND 0.00985 1 05/08/2024 19:14 WG2282647 (S) Toluene-d8 111 75.0-131 05/06/2024 15:11 WG2281014 (S) Toluene-d8 112 75.0-131 05/08/2024 19:14 WG2282647 (S) 4-Bromofluorobenzene 92.2 67.0-138 05/06/2024 15:11 WG2281014 (S) 4-Bromofluorobenzene 95.6 67.0-138 05/08/2024 19:14 WG2282647 (S) 1,2-Dichloroethane-d4 90.3 70.0-130 05/06/2024 15:11 WG2281014 (S) 1,2-Dichloroethane-d4 91.4 70.0-130 05/08/2024 19:14 WG2282647 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time Anthracene ND 0.00744 1 05/09/2024 18:43 WG2283063 Acenaphthene ND 0.00744 1 05/09/2024 18:43 WG2283063 Acenaphthylene ND 0.00744 1 05/09/2024 18:43 WG2283063 Benzo(a)anthracene ND 0.00744 1 05/09/2024 18:43 WG2283063 Benzo(a)pyrene ND 0.00744 1 05/09/2024 18:43 WG2283063 Benzo(b)fluoranthene ND 0.00744 1 05/09/2024 18:43 WG2283063 Benzo(g,h,i)perylene ND 0.00744 1 05/09/2024 18:43 WG2283063 Benzo(k)fluoranthene ND 0.00744 1 05/09/2024 18:43 WG2283063 Chrysene ND 0.00744 1 05/09/2024 18:43 WG2283063 Dibenz(a,h)anthracene ND 0.00744 1 05/09/2024 18:43 WG2283063 Fluoranthene ND 0.00744 1 05/09/2024 18:43 WG2283063 Fluorene ND 0.00744 1 05/09/2024 18:43 WG2283063 Indeno(1,2,3-cd)pyrene ND 0.00744 1 05/09/2024 18:43 WG2283063 Naphthalene ND 0.0248 1 05/09/2024 18:43 WG2283063 Phenanthrene ND 0.00744 1 05/09/2024 18:43 WG2283063 Pyrene ND 0.00744 1 05/09/2024 18:43 WG2283063 1-Methylnaphthalene ND 0.0248 1 05/09/2024 18:43 WG2283063 2-Methylnaphthalene ND 0.0248 1 05/09/2024 18:43 WG2283063 2-Chloronaphthalene ND 0.0248 1 05/09/2024 18:43 WG2283063 (S) p-Terphenyl-d14 89.4 23.0-120 05/09/2024 18:43 WG2283063 (S) Nitrobenzene-d5 106 14.0-149 05/09/2024 18:43 WG2283063 (S) 2-Fluorobiphenyl 75.6 34.0-125 05/09/2024 18:43 WG2283063 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 30 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 30 of 58 SAMPLE RESULTS - 34 L1732554 SB-3 (2) 8-12-D Collected date/time: 04/30/24 14:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND 0.0500 1 05/06/2024 15:31 WG2281014 Acrylonitrile ND 0.0125 1 05/06/2024 15:31 WG2281014 Benzene 0.0120 0.00100 1 05/06/2024 15:31 WG2281014 Bromobenzene ND 0.0125 1 05/06/2024 15:31 WG2281014 Bromodichloromethane ND 0.00250 1 05/06/2024 15:31 WG2281014 Bromoform ND 0.0250 1 05/06/2024 15:31 WG2281014 Bromomethane ND 0.0125 1 05/06/2024 15:31 WG2281014 n-Butylbenzene 0.0469 0.0125 1 05/06/2024 15:31 WG2281014 sec-Butylbenzene 0.0161 0.0125 1 05/06/2024 15:31 WG2281014 tert-Butylbenzene ND 0.00500 1 05/06/2024 15:31 WG2281014 Carbon tetrachloride ND 0.00500 1 05/06/2024 15:31 WG2281014 Chlorobenzene ND 0.00250 1 05/06/2024 15:31 WG2281014 Chlorodibromomethane ND 0.00250 1 05/06/2024 15:31 WG2281014 Chloroethane ND J3 0.00500 1 05/06/2024 15:31 WG2281014 Chloroform ND 0.00250 1 05/06/2024 15:31 WG2281014 Chloromethane ND 0.0125 1 05/06/2024 15:31 WG2281014 2-Chlorotoluene ND 0.00250 1 05/06/2024 15:31 WG2281014 4-Chlorotoluene ND 0.00500 1 05/06/2024 15:31 WG2281014 1,2-Dibromo-3-Chloropropane ND 0.0250 1 05/06/2024 15:31 WG2281014 1,2-Dibromoethane ND 0.00250 1 05/06/2024 15:31 WG2281014 Dibromomethane ND 0.00500 1 05/06/2024 15:31 WG2281014 1,2-Dichlorobenzene ND 0.00500 1 05/06/2024 15:31 WG2281014 1,3-Dichlorobenzene ND 0.00500 1 05/06/2024 15:31 WG2281014 1,4-Dichlorobenzene ND 0.00500 1 05/06/2024 15:31 WG2281014 Dichlorodifluoromethane ND 0.00500 1 05/06/2024 15:31 WG2281014 1,1-Dichloroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 1,2-Dichloroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 1,1-Dichloroethene ND 0.00250 1 05/06/2024 15:31 WG2281014 cis-1,2-Dichloroethene ND 0.00250 1 05/06/2024 15:31 WG2281014 trans-1,2-Dichloroethene ND 0.00500 1 05/06/2024 15:31 WG2281014 1,2-Dichloropropane ND 0.00500 1 05/06/2024 15:31 WG2281014 1,1-Dichloropropene ND 0.00250 1 05/06/2024 15:31 WG2281014 1,3-Dichloropropane ND 0.00500 1 05/06/2024 15:31 WG2281014 cis-1,3-Dichloropropene ND 0.00250 1 05/06/2024 15:31 WG2281014 trans-1,3-Dichloropropene ND 0.00500 1 05/06/2024 15:31 WG2281014 2,2-Dichloropropane ND 0.00250 1 05/06/2024 15:31 WG2281014 Di-isopropyl ether ND 0.00100 1 05/06/2024 15:31 WG2281014 Ethylbenzene 0.107 0.00250 1 05/06/2024 15:31 WG2281014 Hexachloro-1,3-butadiene ND 0.0250 1 05/06/2024 15:31 WG2281014 Isopropylbenzene 0.0157 0.00250 1 05/06/2024 15:31 WG2281014 p-Isopropyltoluene 0.0174 0.00500 1 05/06/2024 15:31 WG2281014 2-Butanone (MEK)ND 0.100 1 05/06/2024 15:31 WG2281014 Methylene Chloride ND 0.0250 1 05/06/2024 15:31 WG2281014 4-Methyl-2-pentanone (MIBK) ND 0.0250 1 05/06/2024 15:31 WG2281014 Methyl tert-butyl ether ND 0.00100 1 05/06/2024 15:31 WG2281014 Naphthalene 0.0353 0.0125 1 05/06/2024 15:31 WG2281014 n-Propylbenzene 0.0673 0.00500 1 05/06/2024 15:31 WG2281014 Styrene ND 0.0125 1 05/06/2024 15:31 WG2281014 1,1,1,2-Tetrachloroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 1,1,2,2-Tetrachloroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 1,1,2-Trichlorotrifluoroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 Tetrachloroethene ND 0.00250 1 05/06/2024 15:31 WG2281014 Toluene 0.310 0.00500 1 05/06/2024 15:31 WG2281014 1,2,3-Trichlorobenzene ND 0.0125 1 05/06/2024 15:31 WG2281014 1,2,4-Trichlorobenzene ND 0.0125 1 05/06/2024 15:31 WG2281014 1,1,1-Trichloroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 31 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 31 of 58 SAMPLE RESULTS - 34 L1732554 SB-3 (2) 8-12-D Collected date/time: 04/30/24 14:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichloroethane ND 0.00250 1 05/06/2024 15:31 WG2281014 Trichloroethene ND 0.00100 1 05/06/2024 15:31 WG2281014 Trichlorofluoromethane ND 0.00250 1 05/06/2024 15:31 WG2281014 1,2,3-Trichloropropane ND 0.0125 1 05/06/2024 15:31 WG2281014 1,2,4-Trimethylbenzene 0.520 0.00500 1 05/06/2024 15:31 WG2281014 1,2,3-Trimethylbenzene 0.149 0.00500 1 05/06/2024 15:31 WG2281014 1,3,5-Trimethylbenzene 0.140 0.00500 1 05/06/2024 15:31 WG2281014 Vinyl chloride ND 0.00250 1 05/06/2024 15:31 WG2281014 Xylenes, Total 0.913 0.00650 1 05/06/2024 15:31 WG2281014 (S) Toluene-d8 112 75.0-131 05/06/2024 15:31 WG2281014 (S) 4-Bromofluorobenzene 107 67.0-138 05/06/2024 15:31 WG2281014 (S) 1,2-Dichloroethane-d4 91.7 70.0-130 05/06/2024 15:31 WG2281014 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 32 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 32 of 58 QUALITY CONTROL SUMMARYWG2280137 Total Solids by Method 2540 G-2011 L1732554-01,02,07,08,12,13,18 Method Blank (MB) (MB) R4065999-1 05/04/24 12:41 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1732554-12 Original Sample (OS) • Duplicate (DUP) (OS) L1732554-12 05/04/24 12:41 • (DUP) R4065999-3 05/04/24 12:41 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 80.7 81.0 1 0.353 10 Laboratory Control Sample (LCS) (LCS) R4065999-2 05/04/24 12:41 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 33 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 33 of 58 QUALITY CONTROL SUMMARYWG2280138 Total Solids by Method 2540 G-2011 L1732554-19,25,26,30,31 Method Blank (MB) (MB) R4065998-1 05/04/24 12:22 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1732554-25 Original Sample (OS) • Duplicate (DUP) (OS) L1732554-25 05/04/24 12:22 • (DUP) R4065998-3 05/04/24 12:22 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 80.5 81.3 1 0.958 10 Laboratory Control Sample (LCS) (LCS) R4065998-2 05/04/24 12:22 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 34 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 34 of 58 QUALITY CONTROL SUMMARYWG2281003 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01 Method Blank (MB) (MB) R4067279-3 05/06/24 11:22 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 0.00500 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 35 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 35 of 58 QUALITY CONTROL SUMMARYWG2281003 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01 Method Blank (MB) (MB) R4067279-3 05/06/24 11:22 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)U 0.0635 0.100 Methylene Chloride 0.00850 J 0.00664 0.0250 4-Methyl-2-pentanone (MIBK) U 0.00228 0.0250 Methyl tert-butyl ether 0.000675 J 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 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 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 1,3,5-Trimethylbenzene U 0.00200 0.00500 Vinyl chloride U 0.00116 0.00250 (S) Toluene-d8 113 75.0-131 (S) 4-Bromofluorobenzene 104 67.0-138 (S) 1,2-Dichloroethane-d4 78.6 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067279-1 05/06/24 09:47 • (LCSD) R4067279-2 05/06/24 10:06 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 0.653 0.548 104 87.7 10.0-160 17.5 31 Acrylonitrile 0.625 0.777 0.708 124 113 45.0-153 9.29 22 Benzene 0.125 0.125 0.110 100 88.0 70.0-123 12.8 20 Bromobenzene 0.125 0.129 0.119 103 95.2 73.0-121 8.06 20 Bromodichloromethane 0.125 0.102 0.0927 81.6 74.2 73.0-121 9.55 20 Bromoform 0.125 0.116 0.105 92.8 84.0 64.0-132 9.95 20 Bromomethane 0.125 0.0982 0.0950 78.6 76.0 56.0-147 3.31 20 n-Butylbenzene 0.125 0.134 0.123 107 98.4 68.0-135 8.56 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 36 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 36 of 58 QUALITY CONTROL SUMMARYWG2281003 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067279-1 05/06/24 09:47 • (LCSD) R4067279-2 05/06/24 10:06 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 %%%%% sec-Butylbenzene 0.125 0.123 0.116 98.4 92.8 74.0-130 5.86 20 tert-Butylbenzene 0.125 0.123 0.118 98.4 94.4 75.0-127 4.15 20 Carbon tetrachloride 0.125 0.119 0.107 95.2 85.6 66.0-128 10.6 20 Chlorobenzene 0.125 0.143 0.130 114 104 76.0-128 9.52 20 Chlorodibromomethane 0.125 0.124 0.113 99.2 90.4 74.0-127 9.28 20 Chloroethane 0.125 0.128 0.111 102 88.8 61.0-134 14.2 20 Chloroform 0.125 0.113 0.101 90.4 80.8 72.0-123 11.2 20 Chloromethane 0.125 0.158 0.135 126 108 51.0-138 15.7 20 2-Chlorotoluene 0.125 0.130 0.123 104 98.4 75.0-124 5.53 20 4-Chlorotoluene 0.125 0.116 0.109 92.8 87.2 75.0-124 6.22 20 1,2-Dibromo-3-Chloropropane 0.125 0.100 0.0989 80.0 79.1 59.0-130 1.11 20 1,2-Dibromoethane 0.125 0.125 0.115 100 92.0 74.0-128 8.33 20 Dibromomethane 0.125 0.119 0.106 95.2 84.8 75.0-122 11.6 20 1,2-Dichlorobenzene 0.125 0.126 0.117 101 93.6 76.0-124 7.41 20 1,3-Dichlorobenzene 0.125 0.127 0.119 102 95.2 76.0-125 6.50 20 1,4-Dichlorobenzene 0.125 0.131 0.119 105 95.2 77.0-121 9.60 20 Dichlorodifluoromethane 0.125 0.117 0.103 93.6 82.4 43.0-156 12.7 20 1,1-Dichloroethane 0.125 0.129 0.115 103 92.0 70.0-127 11.5 20 1,2-Dichloroethane 0.125 0.114 0.104 91.2 83.2 65.0-131 9.17 20 1,1-Dichloroethene 0.125 0.138 0.122 110 97.6 65.0-131 12.3 20 cis-1,2-Dichloroethene 0.125 0.126 0.114 101 91.2 73.0-125 10.0 20 trans-1,2-Dichloroethene 0.125 0.143 0.128 114 102 71.0-125 11.1 20 1,2-Dichloropropane 0.125 0.129 0.121 103 96.8 74.0-125 6.40 20 1,1-Dichloropropene 0.125 0.122 0.110 97.6 88.0 73.0-125 10.3 20 1,3-Dichloropropane 0.125 0.127 0.118 102 94.4 80.0-125 7.35 20 cis-1,3-Dichloropropene 0.125 0.112 0.103 89.6 82.4 76.0-127 8.37 20 trans-1,3-Dichloropropene 0.125 0.109 0.104 87.2 83.2 73.0-127 4.69 20 2,2-Dichloropropane 0.125 0.109 0.0979 87.2 78.3 59.0-135 10.7 20 Di-isopropyl ether 0.125 0.133 0.119 106 95.2 60.0-136 11.1 20 Ethylbenzene 0.125 0.141 0.128 113 102 74.0-126 9.67 20 Hexachloro-1,3-butadiene 0.125 0.111 0.106 88.8 84.8 57.0-150 4.61 20 Isopropylbenzene 0.125 0.136 0.126 109 101 72.0-127 7.63 20 p-Isopropyltoluene 0.125 0.123 0.113 98.4 90.4 72.0-133 8.47 20 2-Butanone (MEK)0.625 0.716 0.677 115 108 30.0-160 5.60 24 Methylene Chloride 0.125 0.119 0.107 95.2 85.6 68.0-123 10.6 20 4-Methyl-2-pentanone (MIBK) 0.625 0.736 0.680 118 109 56.0-143 7.91 20 Methyl tert-butyl ether 0.125 0.112 0.0992 89.6 79.4 66.0-132 12.1 20 Naphthalene 0.125 0.100 0.0943 80.0 75.4 59.0-130 5.87 20 n-Propylbenzene 0.125 0.124 0.112 99.2 89.6 74.0-126 10.2 20 Styrene 0.125 0.140 0.129 112 103 72.0-127 8.18 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 37 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 37 of 58 QUALITY CONTROL SUMMARYWG2281003 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067279-1 05/06/24 09:47 • (LCSD) R4067279-2 05/06/24 10:06 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 %%%%% 1,1,1,2-Tetrachloroethane 0.125 0.140 0.124 112 99.2 74.0-129 12.1 20 1,1,2,2-Tetrachloroethane 0.125 0.117 0.105 93.6 84.0 68.0-128 10.8 20 1,1,2-Trichlorotrifluoroethane 0.125 0.130 0.115 104 92.0 61.0-139 12.2 20 Tetrachloroethene 0.125 0.169 0.153 135 122 70.0-136 9.94 20 1,2,3-Trichlorobenzene 0.125 0.0973 0.0934 77.8 74.7 59.0-139 4.09 20 1,2,4-Trichlorobenzene 0.125 0.120 0.110 96.0 88.0 62.0-137 8.70 20 1,1,1-Trichloroethane 0.125 0.112 0.0994 89.6 79.5 69.0-126 11.9 20 1,1,2-Trichloroethane 0.125 0.140 0.129 112 103 78.0-123 8.18 20 Trichloroethene 0.125 0.140 0.131 112 105 76.0-126 6.64 20 Trichlorofluoromethane 0.125 0.105 0.0966 84.0 77.3 61.0-142 8.33 20 1,2,3-Trichloropropane 0.125 0.116 0.106 92.8 84.8 67.0-129 9.01 20 1,2,3-Trimethylbenzene 0.125 0.110 0.104 88.0 83.2 74.0-124 5.61 20 1,3,5-Trimethylbenzene 0.125 0.119 0.108 95.2 86.4 73.0-127 9.69 20 Vinyl chloride 0.125 0.126 0.119 101 95.2 63.0-134 5.71 20 (S) Toluene-d8 111 109 75.0-131 (S) 4-Bromofluorobenzene 100 103 67.0-138 (S) 1,2-Dichloroethane-d4 80.4 80.8 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 38 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 38 of 58 QUALITY CONTROL SUMMARYWG2281014 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-07,08,12,13,18,19,25,26,30,31,34 Method Blank (MB) (MB) R4067192-3 05/06/24 10:53 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 0.00500 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 39 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 39 of 58 QUALITY CONTROL SUMMARYWG2281014 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-07,08,12,13,18,19,25,26,30,31,34 Method Blank (MB) (MB) R4067192-3 05/06/24 10:53 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)U 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 0.000575 J 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 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 0.00250 Toluene U 0.00130 0.00500 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 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-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 96.4 67.0-138 (S) 1,2-Dichloroethane-d4 93.0 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067192-1 05/06/24 09:12 • (LCSD) R4067192-2 05/06/24 09:32 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 0.659 0.551 105 88.2 10.0-160 17.9 31 Acrylonitrile 0.625 0.656 0.583 105 93.3 45.0-153 11.8 22 Benzene 0.125 0.121 0.124 96.8 99.2 70.0-123 2.45 20 Bromobenzene 0.125 0.120 0.117 96.0 93.6 73.0-121 2.53 20 Bromodichloromethane 0.125 0.0976 0.0974 78.1 77.9 73.0-121 0.205 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 40 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 40 of 58 QUALITY CONTROL SUMMARYWG2281014 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-07,08,12,13,18,19,25,26,30,31,34 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067192-1 05/06/24 09:12 • (LCSD) R4067192-2 05/06/24 09:32 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 0.108 0.101 86.4 80.8 64.0-132 6.70 20 Bromomethane 0.125 0.110 0.123 88.0 98.4 56.0-147 11.2 20 n-Butylbenzene 0.125 0.120 0.113 96.0 90.4 68.0-135 6.01 20 sec-Butylbenzene 0.125 0.119 0.118 95.2 94.4 74.0-130 0.844 20 tert-Butylbenzene 0.125 0.119 0.115 95.2 92.0 75.0-127 3.42 20 Carbon tetrachloride 0.125 0.125 0.124 100 99.2 66.0-128 0.803 20 Chlorobenzene 0.125 0.126 0.126 101 101 76.0-128 0.000 20 Chlorodibromomethane 0.125 0.123 0.116 98.4 92.8 74.0-127 5.86 20 Chloroethane 0.125 0.104 0.129 83.2 103 61.0-134 J3 21.5 20 Chloroform 0.125 0.112 0.111 89.6 88.8 72.0-123 0.897 20 Chloromethane 0.125 0.137 0.151 110 121 51.0-138 9.72 20 2-Chlorotoluene 0.125 0.131 0.115 105 92.0 75.0-124 13.0 20 4-Chlorotoluene 0.125 0.109 0.111 87.2 88.8 75.0-124 1.82 20 1,2-Dibromo-3-Chloropropane 0.125 0.0929 0.0880 74.3 70.4 59.0-130 5.42 20 1,2-Dibromoethane 0.125 0.120 0.112 96.0 89.6 74.0-128 6.90 20 Dibromomethane 0.125 0.103 0.101 82.4 80.8 75.0-122 1.96 20 1,2-Dichlorobenzene 0.125 0.120 0.108 96.0 86.4 76.0-124 10.5 20 1,3-Dichlorobenzene 0.125 0.123 0.116 98.4 92.8 76.0-125 5.86 20 1,4-Dichlorobenzene 0.125 0.116 0.104 92.8 83.2 77.0-121 10.9 20 Dichlorodifluoromethane 0.125 0.142 0.142 114 114 43.0-156 0.000 20 1,1-Dichloroethane 0.125 0.116 0.114 92.8 91.2 70.0-127 1.74 20 1,2-Dichloroethane 0.125 0.116 0.113 92.8 90.4 65.0-131 2.62 20 1,1-Dichloroethene 0.125 0.131 0.134 105 107 65.0-131 2.26 20 cis-1,2-Dichloroethene 0.125 0.109 0.113 87.2 90.4 73.0-125 3.60 20 trans-1,2-Dichloroethene 0.125 0.115 0.120 92.0 96.0 71.0-125 4.26 20 1,2-Dichloropropane 0.125 0.119 0.117 95.2 93.6 74.0-125 1.69 20 1,1-Dichloropropene 0.125 0.111 0.119 88.8 95.2 73.0-125 6.96 20 1,3-Dichloropropane 0.125 0.124 0.116 99.2 92.8 80.0-125 6.67 20 cis-1,3-Dichloropropene 0.125 0.110 0.111 88.0 88.8 76.0-127 0.905 20 trans-1,3-Dichloropropene 0.125 0.110 0.110 88.0 88.0 73.0-127 0.000 20 2,2-Dichloropropane 0.125 0.100 0.104 80.0 83.2 59.0-135 3.92 20 Di-isopropyl ether 0.125 0.146 0.138 117 110 60.0-136 5.63 20 Ethylbenzene 0.125 0.120 0.119 96.0 95.2 74.0-126 0.837 20 Hexachloro-1,3-butadiene 0.125 0.0965 0.0923 77.2 73.8 57.0-150 4.45 20 Isopropylbenzene 0.125 0.124 0.124 99.2 99.2 72.0-127 0.000 20 p-Isopropyltoluene 0.125 0.117 0.116 93.6 92.8 72.0-133 0.858 20 2-Butanone (MEK)0.625 0.563 0.516 90.1 82.6 30.0-160 8.71 24 Methylene Chloride 0.125 0.107 0.108 85.6 86.4 68.0-123 0.930 20 4-Methyl-2-pentanone (MIBK) 0.625 0.732 0.660 117 106 56.0-143 10.3 20 Methyl tert-butyl ether 0.125 0.104 0.103 83.2 82.4 66.0-132 0.966 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 41 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 41 of 58 QUALITY CONTROL SUMMARYWG2281014 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-07,08,12,13,18,19,25,26,30,31,34 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067192-1 05/06/24 09:12 • (LCSD) R4067192-2 05/06/24 09:32 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 0.0935 0.0901 74.8 72.1 59.0-130 3.70 20 n-Propylbenzene 0.125 0.124 0.122 99.2 97.6 74.0-126 1.63 20 Styrene 0.125 0.135 0.132 108 106 72.0-127 2.25 20 1,1,1,2-Tetrachloroethane 0.125 0.122 0.114 97.6 91.2 74.0-129 6.78 20 1,1,2,2-Tetrachloroethane 0.125 0.117 0.108 93.6 86.4 68.0-128 8.00 20 1,1,2-Trichlorotrifluoroethane 0.125 0.116 0.109 92.8 87.2 61.0-139 6.22 20 Tetrachloroethene 0.125 0.121 0.123 96.8 98.4 70.0-136 1.64 20 Toluene 0.125 0.127 0.122 102 97.6 75.0-121 4.02 20 1,2,3-Trichlorobenzene 0.125 0.0989 0.0959 79.1 76.7 59.0-139 3.08 20 1,2,4-Trichlorobenzene 0.125 0.0974 0.0942 77.9 75.4 62.0-137 3.34 20 1,1,1-Trichloroethane 0.125 0.120 0.123 96.0 98.4 69.0-126 2.47 20 1,1,2-Trichloroethane 0.125 0.110 0.107 88.0 85.6 78.0-123 2.76 20 Trichloroethene 0.125 0.135 0.142 108 114 76.0-126 5.05 20 Trichlorofluoromethane 0.125 0.115 0.130 92.0 104 61.0-142 12.2 20 1,2,3-Trichloropropane 0.125 0.119 0.104 95.2 83.2 67.0-129 13.5 20 1,2,4-Trimethylbenzene 0.125 0.114 0.102 91.2 81.6 70.0-126 11.1 20 1,2,3-Trimethylbenzene 0.125 0.109 0.102 87.2 81.6 74.0-124 6.64 20 1,3,5-Trimethylbenzene 0.125 0.107 0.101 85.6 80.8 73.0-127 5.77 20 Vinyl chloride 0.125 0.120 0.134 96.0 107 63.0-134 11.0 20 Xylenes, Total 0.375 0.335 0.329 89.3 87.7 72.0-127 1.81 20 (S) Toluene-d8 109 109 75.0-131 (S) 4-Bromofluorobenzene 93.2 97.6 67.0-138 (S) 1,2-Dichloroethane-d4 96.4 101 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 42 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 42 of 58 QUALITY CONTROL SUMMARYWG2282647 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-07,30,31 Method Blank (MB) (MB) R4067669-3 05/08/24 15:42 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg n-Propylbenzene U 0.000950 0.00500 Toluene U 0.00130 0.00500 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,3,5-Trimethylbenzene U 0.00200 0.00500 Xylenes, Total U 0.000880 0.00650 (S) Toluene-d8 110 75.0-131 (S) 4-Bromofluorobenzene 94.5 67.0-138 (S) 1,2-Dichloroethane-d4 90.3 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067669-1 05/08/24 14:01 • (LCSD) R4067669-2 05/08/24 14:21 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 0.121 0.126 96.8 101 74.0-126 4.05 20 Toluene 0.125 0.121 0.123 96.8 98.4 75.0-121 1.64 20 1,2,4-Trimethylbenzene 0.125 0.0994 0.114 79.5 91.2 70.0-126 13.7 20 1,3,5-Trimethylbenzene 0.125 0.102 0.103 81.6 82.4 73.0-127 0.976 20 Xylenes, Total 0.375 0.326 0.332 86.9 88.5 72.0-127 1.82 20 (S) Toluene-d8 110 111 75.0-131 (S) 4-Bromofluorobenzene 96.9 97.2 67.0-138 (S) 1,2-Dichloroethane-d4 97.1 101 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 43 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 43 of 58 QUALITY CONTROL SUMMARYWG2282804 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01,02 Method Blank (MB) (MB) R4067911-3 05/08/24 20:15 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 0.00500 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 44 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 44 of 58 QUALITY CONTROL SUMMARYWG2282804 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01,02 Method Blank (MB) (MB) R4067911-3 05/08/24 20:15 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)U 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 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 0.00250 Toluene U 0.00130 0.00500 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 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-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 100 75.0-131 (S) 4-Bromofluorobenzene 97.1 67.0-138 (S) 1,2-Dichloroethane-d4 106 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067911-1 05/08/24 18:39 • (LCSD) R4067911-2 05/08/24 18:58 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 1.23 0.565 197 90.4 10.0-160 J4 J3 74.1 31 Acrylonitrile 0.625 0.624 0.697 99.8 112 45.0-153 11.1 22 Benzene 0.125 0.125 0.120 100 96.0 70.0-123 4.08 20 Bromobenzene 0.125 0.109 0.109 87.2 87.2 73.0-121 0.000 20 Bromodichloromethane 0.125 0.110 0.109 88.0 87.2 73.0-121 0.913 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 45 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 45 of 58 QUALITY CONTROL SUMMARYWG2282804 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067911-1 05/08/24 18:39 • (LCSD) R4067911-2 05/08/24 18:58 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 0.0728 0.0743 58.2 59.4 64.0-132 J4 J4 2.04 20 Bromomethane 0.125 0.137 0.126 110 101 56.0-147 8.37 20 n-Butylbenzene 0.125 0.110 0.113 88.0 90.4 68.0-135 2.69 20 sec-Butylbenzene 0.125 0.117 0.129 93.6 103 74.0-130 9.76 20 tert-Butylbenzene 0.125 0.111 0.116 88.8 92.8 75.0-127 4.41 20 Carbon tetrachloride 0.125 0.0982 0.105 78.6 84.0 66.0-128 6.69 20 Chlorobenzene 0.125 0.111 0.106 88.8 84.8 76.0-128 4.61 20 Chlorodibromomethane 0.125 0.0927 0.0905 74.2 72.4 74.0-127 J4 2.40 20 Chloroethane 0.125 0.150 0.142 120 114 61.0-134 5.48 20 Chloroform 0.125 0.118 0.119 94.4 95.2 72.0-123 0.844 20 Chloromethane 0.125 0.160 0.135 128 108 51.0-138 16.9 20 2-Chlorotoluene 0.125 0.115 0.116 92.0 92.8 75.0-124 0.866 20 4-Chlorotoluene 0.125 0.131 0.133 105 106 75.0-124 1.52 20 1,2-Dibromo-3-Chloropropane 0.125 0.0879 0.0992 70.3 79.4 59.0-130 12.1 20 1,2-Dibromoethane 0.125 0.108 0.107 86.4 85.6 74.0-128 0.930 20 Dibromomethane 0.125 0.111 0.111 88.8 88.8 75.0-122 0.000 20 1,2-Dichlorobenzene 0.125 0.113 0.117 90.4 93.6 76.0-124 3.48 20 1,3-Dichlorobenzene 0.125 0.108 0.107 86.4 85.6 76.0-125 0.930 20 1,4-Dichlorobenzene 0.125 0.117 0.115 93.6 92.0 77.0-121 1.72 20 Dichlorodifluoromethane 0.125 0.154 0.141 123 113 43.0-156 8.81 20 1,1-Dichloroethane 0.125 0.134 0.126 107 101 70.0-127 6.15 20 1,2-Dichloroethane 0.125 0.126 0.125 101 100 65.0-131 0.797 20 1,1-Dichloroethene 0.125 0.139 0.126 111 101 65.0-131 9.81 20 cis-1,2-Dichloroethene 0.125 0.116 0.117 92.8 93.6 73.0-125 0.858 20 trans-1,2-Dichloroethene 0.125 0.120 0.107 96.0 85.6 71.0-125 11.5 20 1,2-Dichloropropane 0.125 0.136 0.137 109 110 74.0-125 0.733 20 1,1-Dichloropropene 0.125 0.127 0.121 102 96.8 73.0-125 4.84 20 1,3-Dichloropropane 0.125 0.119 0.117 95.2 93.6 80.0-125 1.69 20 cis-1,3-Dichloropropene 0.125 0.113 0.111 90.4 88.8 76.0-127 1.79 20 trans-1,3-Dichloropropene 0.125 0.108 0.107 86.4 85.6 73.0-127 0.930 20 2,2-Dichloropropane 0.125 0.0997 0.102 79.8 81.6 59.0-135 2.28 20 Di-isopropyl ether 0.125 0.113 0.119 90.4 95.2 60.0-136 5.17 20 Ethylbenzene 0.125 0.109 0.106 87.2 84.8 74.0-126 2.79 20 Hexachloro-1,3-butadiene 0.125 0.0944 0.0910 75.5 72.8 57.0-150 3.67 20 Isopropylbenzene 0.125 0.106 0.107 84.8 85.6 72.0-127 0.939 20 p-Isopropyltoluene 0.125 0.117 0.121 93.6 96.8 72.0-133 3.36 20 2-Butanone (MEK)0.625 0.653 0.567 104 90.7 30.0-160 14.1 24 Methylene Chloride 0.125 0.123 0.116 98.4 92.8 68.0-123 5.86 20 4-Methyl-2-pentanone (MIBK) 0.625 0.571 0.617 91.4 98.7 56.0-143 7.74 20 Methyl tert-butyl ether 0.125 0.101 0.104 80.8 83.2 66.0-132 2.93 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 46 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 46 of 58 QUALITY CONTROL SUMMARYWG2282804 Volatile Organic Compounds (GC/MS) by Method 8260B L1732554-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4067911-1 05/08/24 18:39 • (LCSD) R4067911-2 05/08/24 18:58 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 0.0951 0.122 76.1 97.6 59.0-130 J3 24.8 20 n-Propylbenzene 0.125 0.125 0.128 100 102 74.0-126 2.37 20 Styrene 0.125 0.108 0.107 86.4 85.6 72.0-127 0.930 20 1,1,1,2-Tetrachloroethane 0.125 0.0874 0.0931 69.9 74.5 74.0-129 J4 6.32 20 1,1,2,2-Tetrachloroethane 0.125 0.116 0.133 92.8 106 68.0-128 13.7 20 1,1,2-Trichlorotrifluoroethane 0.125 0.133 0.121 106 96.8 61.0-139 9.45 20 Tetrachloroethene 0.125 0.0984 0.0963 78.7 77.0 70.0-136 2.16 20 Toluene 0.125 0.115 0.113 92.0 90.4 75.0-121 1.75 20 1,2,3-Trichlorobenzene 0.125 0.0852 0.104 68.2 83.2 59.0-139 19.9 20 1,2,4-Trichlorobenzene 0.125 0.0995 0.108 79.6 86.4 62.0-137 8.19 20 1,1,1-Trichloroethane 0.125 0.101 0.105 80.8 84.0 69.0-126 3.88 20 1,1,2-Trichloroethane 0.125 0.110 0.110 88.0 88.0 78.0-123 0.000 20 Trichloroethene 0.125 0.115 0.110 92.0 88.0 76.0-126 4.44 20 Trichlorofluoromethane 0.125 0.128 0.126 102 101 61.0-142 1.57 20 1,2,3-Trichloropropane 0.125 0.126 0.123 101 98.4 67.0-129 2.41 20 1,2,4-Trimethylbenzene 0.125 0.115 0.120 92.0 96.0 70.0-126 4.26 20 1,2,3-Trimethylbenzene 0.125 0.111 0.122 88.8 97.6 74.0-124 9.44 20 1,3,5-Trimethylbenzene 0.125 0.114 0.117 91.2 93.6 73.0-127 2.60 20 Vinyl chloride 0.125 0.148 0.144 118 115 63.0-134 2.74 20 Xylenes, Total 0.375 0.318 0.321 84.8 85.6 72.0-127 0.939 20 (S) Toluene-d8 99.1 100 75.0-131 (S) 4-Bromofluorobenzene 98.7 101 67.0-138 (S) 1,2-Dichloroethane-d4 109 110 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 47 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 47 of 58 QUALITY CONTROL SUMMARYWG2282822 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1732554-01,02,07,08,12,13 Method Blank (MB) (MB) R4067895-2 05/09/24 14:50 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Anthracene U 0.00230 0.00600 Acenaphthene U 0.00209 0.00600 Acenaphthylene U 0.00216 0.00600 Benzo(a)anthracene U 0.00173 0.00600 Benzo(a)pyrene U 0.00179 0.00600 Benzo(b)fluoranthene U 0.00153 0.00600 Benzo(g,h,i)perylene U 0.00177 0.00600 Benzo(k)fluoranthene U 0.00215 0.00600 Chrysene U 0.00232 0.00600 Dibenz(a,h)anthracene U 0.00172 0.00600 Fluoranthene U 0.00227 0.00600 Fluorene U 0.00205 0.00600 Indeno(1,2,3-cd)pyrene U 0.00181 0.00600 Naphthalene U 0.00408 0.0200 Phenanthrene U 0.00231 0.00600 Pyrene U 0.00200 0.00600 1-Methylnaphthalene U 0.00449 0.0200 2-Methylnaphthalene U 0.00427 0.0200 2-Chloronaphthalene U 0.00466 0.0200 (S) p-Terphenyl-d14 98.4 23.0-120 (S) Nitrobenzene-d5 112 14.0-149 (S) 2-Fluorobiphenyl 87.5 34.0-125 Laboratory Control Sample (LCS) (LCS) R4067895-1 05/09/24 14:32 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Anthracene 0.0800 0.0663 82.9 50.0-126 Acenaphthene 0.0800 0.0584 73.0 50.0-120 Acenaphthylene 0.0800 0.0633 79.1 50.0-120 Benzo(a)anthracene 0.0800 0.0658 82.3 45.0-120 Benzo(a)pyrene 0.0800 0.0511 63.9 42.0-120 Benzo(b)fluoranthene 0.0800 0.0609 76.1 42.0-121 Benzo(g,h,i)perylene 0.0800 0.0588 73.5 45.0-125 Benzo(k)fluoranthene 0.0800 0.0562 70.3 49.0-125 Chrysene 0.0800 0.0637 79.6 49.0-122 Dibenz(a,h)anthracene 0.0800 0.0653 81.6 47.0-125 Fluoranthene 0.0800 0.0672 84.0 49.0-129 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 48 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 48 of 58 QUALITY CONTROL SUMMARYWG2282822 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1732554-01,02,07,08,12,13 Laboratory Control Sample (LCS) (LCS) R4067895-1 05/09/24 14:32 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Fluorene 0.0800 0.0640 80.0 49.0-120 Indeno(1,2,3-cd)pyrene 0.0800 0.0647 80.9 46.0-125 Naphthalene 0.0800 0.0650 81.3 50.0-120 Phenanthrene 0.0800 0.0650 81.3 47.0-120 Pyrene 0.0800 0.0585 73.1 43.0-123 1-Methylnaphthalene 0.0800 0.0671 83.9 51.0-121 2-Methylnaphthalene 0.0800 0.0656 82.0 50.0-120 2-Chloronaphthalene 0.0800 0.0554 69.3 50.0-120 (S) p-Terphenyl-d14 96.4 23.0-120 (S) Nitrobenzene-d5 112 14.0-149 (S) 2-Fluorobiphenyl 86.6 34.0-125 L1732554-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1732554-02 05/10/24 00:23 • (MS) R4067895-3 05/10/24 00:41 • (MSD) R4067895-4 05/10/24 00:59 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 %%%%% Anthracene 0.0982 ND 0.0714 0.0767 72.7 78.5 1 10.0-145 7.11 30 Acenaphthene 0.0982 0.0239 0.0796 0.0837 56.6 61.2 1 14.0-127 5.07 27 Acenaphthylene 0.0982 ND 0.0765 0.0769 77.9 78.7 1 21.0-124 0.490 25 Benzo(a)anthracene 0.0982 ND 0.0788 0.0828 80.2 84.7 1 10.0-139 4.96 30 Benzo(a)pyrene 0.0982 ND 0.0669 0.0704 68.1 72.1 1 10.0-141 5.11 31 Benzo(b)fluoranthene 0.0982 ND 0.0664 0.0694 67.6 71.0 1 10.0-140 4.43 36 Benzo(g,h,i)perylene 0.0982 ND 0.0650 0.0690 66.2 70.6 1 10.0-140 5.98 33 Benzo(k)fluoranthene 0.0982 ND 0.0630 0.0661 64.2 67.7 1 10.0-137 4.85 31 Chrysene 0.0982 ND 0.0718 0.0755 73.1 77.3 1 10.0-145 5.10 30 Dibenz(a,h)anthracene 0.0982 ND 0.0704 0.0745 71.7 76.3 1 10.0-132 5.70 31 Fluoranthene 0.0982 ND 0.0776 0.0791 79.0 80.9 1 10.0-153 1.92 33 Fluorene 0.0982 0.0375 0.102 0.0985 65.7 62.4 1 11.0-130 3.50 29 Indeno(1,2,3-cd)pyrene 0.0982 ND 0.0710 0.0748 72.3 76.5 1 10.0-137 5.15 32 Naphthalene 0.0982 0.336 0.296 0.353 0.000 17.9 1 10.0-135 J6 17.8 27 Phenanthrene 0.0982 0.0162 0.0941 0.0921 79.3 77.7 1 10.0-144 2.15 31 Pyrene 0.0982 0.0413 0.0922 0.103 51.8 62.9 1 10.0-148 10.9 35 1-Methylnaphthalene 0.0982 0.283 0.263 0.302 0.000 19.2 1 10.0-142 J6 13.7 28 2-Methylnaphthalene 0.0982 0.469 0.382 0.459 0.000 0.000 1 10.0-137 V V 18.2 28 2-Chloronaphthalene 0.0982 ND 0.0618 0.0639 62.9 65.4 1 29.0-120 3.39 24 (S) p-Terphenyl-d14 82.0 82.0 23.0-120 (S) Nitrobenzene-d5 0.000 0.000 14.0-149 J2 J2 (S) 2-Fluorobiphenyl 69.3 68.3 34.0-125 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 49 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 49 of 58 QUALITY CONTROL SUMMARYWG2282822 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1732554-01,02,07,08,12,13 L1732554-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1732554-02 05/10/24 00:23 • (MS) R4067895-3 05/10/24 00:41 • (MSD) R4067895-4 05/10/24 00:59 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 %%%%% Sample Narrative: OS: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 50 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 50 of 58 QUALITY CONTROL SUMMARYWG2283063 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1732554-18,19,25,26,30,31 Method Blank (MB) (MB) R4067896-2 05/09/24 14:14 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Anthracene U 0.00230 0.00600 Acenaphthene U 0.00209 0.00600 Acenaphthylene U 0.00216 0.00600 Benzo(a)anthracene U 0.00173 0.00600 Benzo(a)pyrene U 0.00179 0.00600 Benzo(b)fluoranthene U 0.00153 0.00600 Benzo(g,h,i)perylene U 0.00177 0.00600 Benzo(k)fluoranthene U 0.00215 0.00600 Chrysene U 0.00232 0.00600 Dibenz(a,h)anthracene U 0.00172 0.00600 Fluoranthene U 0.00227 0.00600 Fluorene U 0.00205 0.00600 Indeno(1,2,3-cd)pyrene U 0.00181 0.00600 Naphthalene U 0.00408 0.0200 Phenanthrene U 0.00231 0.00600 Pyrene U 0.00200 0.00600 1-Methylnaphthalene U 0.00449 0.0200 2-Methylnaphthalene U 0.00427 0.0200 2-Chloronaphthalene U 0.00466 0.0200 (S) p-Terphenyl-d14 88.0 23.0-120 (S) Nitrobenzene-d5 98.4 14.0-149 (S) 2-Fluorobiphenyl 77.9 34.0-125 Laboratory Control Sample (LCS) (LCS) R4067896-1 05/09/24 13:57 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Anthracene 0.0800 0.0648 81.0 50.0-126 Acenaphthene 0.0800 0.0582 72.8 50.0-120 Acenaphthylene 0.0800 0.0633 79.1 50.0-120 Benzo(a)anthracene 0.0800 0.0649 81.1 45.0-120 Benzo(a)pyrene 0.0800 0.0533 66.6 42.0-120 Benzo(b)fluoranthene 0.0800 0.0593 74.1 42.0-121 Benzo(g,h,i)perylene 0.0800 0.0585 73.1 45.0-125 Benzo(k)fluoranthene 0.0800 0.0546 68.3 49.0-125 Chrysene 0.0800 0.0626 78.3 49.0-122 Dibenz(a,h)anthracene 0.0800 0.0634 79.3 47.0-125 Fluoranthene 0.0800 0.0672 84.0 49.0-129 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 51 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 51 of 58 QUALITY CONTROL SUMMARYWG2283063 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1732554-18,19,25,26,30,31 Laboratory Control Sample (LCS) (LCS) R4067896-1 05/09/24 13:57 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Fluorene 0.0800 0.0637 79.6 49.0-120 Indeno(1,2,3-cd)pyrene 0.0800 0.0630 78.8 46.0-125 Naphthalene 0.0800 0.0643 80.4 50.0-120 Phenanthrene 0.0800 0.0643 80.4 47.0-120 Pyrene 0.0800 0.0574 71.8 43.0-123 1-Methylnaphthalene 0.0800 0.0663 82.9 51.0-121 2-Methylnaphthalene 0.0800 0.0640 80.0 50.0-120 2-Chloronaphthalene 0.0800 0.0554 69.3 50.0-120 (S) p-Terphenyl-d14 89.1 23.0-120 (S) Nitrobenzene-d5 105 14.0-149 (S) 2-Fluorobiphenyl 80.7 34.0-125 L1733816-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1733816-02 05/09/24 16:02 • (MS) R4067896-3 05/09/24 15:26 • (MSD) R4067896-4 05/09/24 15:44 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 %%%%% Anthracene 0.0855 ND 0.0699 0.0713 81.7 83.4 1 10.0-145 2.00 30 Acenaphthene 0.0855 ND 0.0616 0.0568 72.1 66.5 1 14.0-127 8.06 27 Acenaphthylene 0.0855 ND 0.0675 0.0613 78.9 71.7 1 21.0-124 9.60 25 Benzo(a)anthracene 0.0855 ND 0.0701 0.0690 82.0 80.7 1 10.0-139 1.56 30 Benzo(a)pyrene 0.0855 ND 0.0613 0.0598 71.7 69.9 1 10.0-141 2.51 31 Benzo(b)fluoranthene 0.0855 ND 0.0613 0.0603 71.7 70.6 1 10.0-140 1.61 36 Benzo(g,h,i)perylene 0.0855 ND 0.0605 0.0581 70.8 68.0 1 10.0-140 4.02 33 Benzo(k)fluoranthene 0.0855 ND 0.0566 0.0548 66.2 64.1 1 10.0-137 3.31 31 Chrysene 0.0855 ND 0.0672 0.0653 78.6 76.4 1 10.0-145 2.78 30 Dibenz(a,h)anthracene 0.0855 ND 0.0679 0.0637 79.4 74.5 1 10.0-132 6.43 31 Fluoranthene 0.0855 ND 0.0718 0.0707 84.0 82.7 1 10.0-153 1.52 33 Fluorene 0.0855 ND 0.0678 0.0626 79.3 73.2 1 11.0-130 7.99 29 Indeno(1,2,3-cd)pyrene 0.0855 ND 0.0672 0.0648 78.6 75.8 1 10.0-137 3.62 32 Naphthalene 0.0855 ND 0.0692 0.0672 81.0 78.6 1 10.0-135 3.02 27 Phenanthrene 0.0855 ND 0.0687 0.0668 80.3 78.2 1 10.0-144 2.72 31 Pyrene 0.0855 ND 0.0615 0.0591 72.0 69.2 1 10.0-148 3.96 35 1-Methylnaphthalene 0.0855 ND 0.0707 0.0700 82.7 81.9 1 10.0-142 1.08 28 2-Methylnaphthalene 0.0855 ND 0.0693 0.0683 81.1 79.9 1 10.0-137 1.42 28 2-Chloronaphthalene 0.0855 ND 0.0592 0.0541 69.3 63.3 1 29.0-120 9.00 24 (S) p-Terphenyl-d14 89.8 89.4 23.0-120 (S) Nitrobenzene-d5 113 117 14.0-149 (S) 2-Fluorobiphenyl 84.2 79.9 34.0-125 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 52 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 52 of 58 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. ND Not detected at the Reporting Limit (or MDL where applicable). 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 J The identification of the analyte is acceptable; the reported value is an estimate. J1 Surrogate recovery limits have been exceeded; values are outside upper control limits. J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. 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. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 53 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 53 of 58 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 ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 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 ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 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 ⁵1461.02 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:35 54 of 58 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1732554 05/10/24 16:37 54 of 58 ANALYTICAL REPORT May 21, 2024 TRC - Lakewood, CO Sample Delivery Group:L1736040 Samples Received:05/03/2024 Project Number:564624.0000.0000 Description:HEP Lynndyl, UT Report To:Brandon Cochran 131 E. Lincoln Ave Suite 200 Fort Collins, CO 80524 Entire Report Reviewed By: May 21, 2024 [Preliminary Report] Chris Ward 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 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 1 of 54 May 21, 2024 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 1 of 54 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SB-1 (2) 14-20' L1736040-01 7 SB-1 (2) 20-22' L1736040-02 9 SB-3 (2)12-18' L1736040-03 11 SB-3 (2) 18-25' L1736040-04 13 SB-6 (2) 12.5-17.5' L1736040-05 15 SB-6 (2) 17.5-24.5' L1736040-06 17 SB-7 (2) 13-17' L1736040-07 19 SB-7 (2) 19-21' L1736040-08 21 SB-10 (2) 14-17' L1736040-09 23 SB-10 (2) 17-23' L1736040-10 25 SB-1 (2) 25-30' L1736040-11 27 SB-3 (2) 25-30' L1736040-12 29 SB-6 (2) 24.5-19.5' L1736040-13 31 SB-7 (2) 23-25' L1736040-14 33 SB-10 (2) 23-25' L1736040-15 35 Qc: Quality Control Summary 37 Total Solids by Method 2540 G-2011 37 Volatile Organic Compounds (GC/MS) by Method 8260B 39 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM 47 Gl: Glossary of Terms 49 Al: Accreditations & Locations 50 Sc: Sample Chain of Custody 51 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 2 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 2 of 54 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-1 (2) 14-20' L1736040-01 Solid BC 04/30/24 14:11 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286509 1 05/15/24 10:40 05/15/24 10:56 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 8 04/30/24 14:11 05/15/24 06:49 BAM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2287760 80 04/30/24 14:11 05/17/24 16:54 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 00:50 MBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 20 05/14/24 19:29 05/15/24 23:40 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-1 (2) 20-22' L1736040-02 Solid BC 04/30/24 14:13 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286509 1 05/15/24 10:40 05/15/24 10:56 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 14:13 05/15/24 03:07 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 01:07 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-3 (2)12-18' L1736040-03 Solid BC 04/30/24 14:54 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286509 1 05/15/24 10:40 05/15/24 10:56 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 8 04/30/24 14:54 05/15/24 07:08 BAM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2287760 8 04/30/24 14:54 05/17/24 17:14 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 01:25 MBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 20 05/14/24 19:29 05/15/24 23:59 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-3 (2) 18-25' L1736040-04 Solid BC 04/30/24 14:58 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286509 1 05/15/24 10:40 05/15/24 10:56 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 14:58 05/15/24 03:27 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 01:43 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-6 (2) 12.5-17.5' L1736040-05 Solid BC 04/30/24 11:10 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286509 1 05/15/24 10:40 05/15/24 10:56 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 8 04/30/24 11:10 05/15/24 07:28 BAM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2287760 8 04/30/24 11:10 05/17/24 17:34 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 02:00 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-6 (2) 17.5-24.5' L1736040-06 Solid BC 04/30/24 11:18 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286509 1 05/15/24 10:40 05/15/24 10:56 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1.25 04/30/24 11:18 05/15/24 03:47 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 02:18 MBE Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 3 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 3 of 54 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-7 (2) 13-17' L1736040-07 Solid BC 04/30/24 12:15 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2287760 1 04/30/24 12:15 05/17/24 16:34 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 03:11 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-7 (2) 19-21' L1736040-08 Solid BC 04/30/24 12:30 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 8 04/30/24 12:30 05/15/24 08:08 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 03:29 MBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 20 05/14/24 19:29 05/16/24 00:19 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-10 (2) 14-17' L1736040-09 Solid BC 04/30/24 13:23 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 20 04/30/24 13:23 05/15/24 08:28 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 03:46 MBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 10 05/14/24 19:29 05/16/24 00:39 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time SB-10 (2) 17-23' L1736040-10 Solid BC 04/30/24 13:22 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 13:22 05/15/24 04:07 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 04:04 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-1 (2) 25-30' L1736040-11 Solid BC 04/30/24 14:24 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 14:24 05/15/24 04:27 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 04:22 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-3 (2) 25-30' L1736040-12 Solid BC 04/30/24 15:02 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 15:02 05/15/24 04:47 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 04:39 MBE Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 4 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 4 of 54 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-6 (2) 24.5-19.5' L1736040-13 Solid BC 04/30/24 11:27 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 11:27 05/15/24 05:07 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 04:57 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-7 (2) 23-25' L1736040-14 Solid BC 04/30/24 12:40 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 12:40 05/15/24 05:28 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 05:14 MBE Mt. Juliet, TN Collected by Collected date/time Received date/time SB-10 (2) 23-25' L1736040-15 Solid BC 04/30/24 13:31 05/03/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2286510 1 05/15/24 10:22 05/15/24 10:34 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2286466 1 04/30/24 13:31 05/15/24 05:48 BAM Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM WG2286284 1 05/14/24 19:29 05/15/24 05:32 MBE Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 5 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 5 of 54 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] Chris Ward Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 6 of 54 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 6 of 54 SAMPLE RESULTS - 01 L1736040 SB-1 (2) 14-20' Collected date/time: 04/30/24 14:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.0 1 05/15/2024 10:56 WG2286509 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 3.25 T8 0.403 0.553 8 05/15/2024 06:49 WG2286466 Acrylonitrile U T8 0.0399 0.138 8 05/15/2024 06:49 WG2286466 Benzene 1.19 T8 0.00517 0.0111 8 05/15/2024 06:49 WG2286466 Bromobenzene U T8 0.00995 0.138 8 05/15/2024 06:49 WG2286466 Bromodichloromethane U T8 0.00801 0.0276 8 05/15/2024 06:49 WG2286466 Bromoform U T8 0.0129 0.276 8 05/15/2024 06:49 WG2286466 Bromomethane U T8 0.0218 0.138 8 05/15/2024 06:49 WG2286466 n-Butylbenzene U T8 0.0580 0.138 8 05/15/2024 06:49 WG2286466 sec-Butylbenzene 4.05 T8 0.0318 0.138 8 05/15/2024 06:49 WG2286466 tert-Butylbenzene U T8 0.0216 0.0553 8 05/15/2024 06:49 WG2286466 Carbon tetrachloride U T8 0.00992 0.0553 8 05/15/2024 06:49 WG2286466 Chlorobenzene U T8 0.00232 0.0276 8 05/15/2024 06:49 WG2286466 Chlorodibromomethane U T8 0.00677 0.0276 8 05/15/2024 06:49 WG2286466 Chloroethane U T8 0.0188 0.0553 8 05/15/2024 06:49 WG2286466 Chloroform U T8 0.0114 0.0276 8 05/15/2024 06:49 WG2286466 Chloromethane U T8 0.0481 0.138 8 05/15/2024 06:49 WG2286466 2-Chlorotoluene U T8 0.00956 0.0276 8 05/15/2024 06:49 WG2286466 4-Chlorotoluene U T8 0.00497 0.0553 8 05/15/2024 06:49 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.0431 0.276 8 05/15/2024 06:49 WG2286466 1,2-Dibromoethane U T8 0.00716 0.0276 8 05/15/2024 06:49 WG2286466 Dibromomethane U T8 0.00829 0.0553 8 05/15/2024 06:49 WG2286466 1,2-Dichlorobenzene U T8 0.00470 0.0553 8 05/15/2024 06:49 WG2286466 1,3-Dichlorobenzene U T8 0.00663 0.0553 8 05/15/2024 06:49 WG2286466 1,4-Dichlorobenzene U T8 0.00774 0.0553 8 05/15/2024 06:49 WG2286466 Dichlorodifluoromethane U T8 0.0178 0.0553 8 05/15/2024 06:49 WG2286466 1,1-Dichloroethane U T8 0.00543 0.0276 8 05/15/2024 06:49 WG2286466 1,2-Dichloroethane U T8 0.00717 0.0276 8 05/15/2024 06:49 WG2286466 1,1-Dichloroethene U T8 0.00670 0.0276 8 05/15/2024 06:49 WG2286466 cis-1,2-Dichloroethene U T8 0.00811 0.0276 8 05/15/2024 06:49 WG2286466 trans-1,2-Dichloroethene U T8 0.0115 0.0553 8 05/15/2024 06:49 WG2286466 1,2-Dichloropropane U T8 0.0158 0.0553 8 05/15/2024 06:49 WG2286466 1,1-Dichloropropene 0.0155 J T8 0.00894 0.0276 8 05/15/2024 06:49 WG2286466 1,3-Dichloropropane U T8 0.00554 0.0553 8 05/15/2024 06:49 WG2286466 cis-1,3-Dichloropropene U T8 0.00837 0.0276 8 05/15/2024 06:49 WG2286466 trans-1,3-Dichloropropene U T8 0.0126 0.0553 8 05/15/2024 06:49 WG2286466 2,2-Dichloropropane U T8 0.0152 0.0276 8 05/15/2024 06:49 WG2286466 Di-isopropyl ether U T8 0.00453 0.0111 8 05/15/2024 06:49 WG2286466 Ethylbenzene 6.48 T8 0.00815 0.0276 8 05/15/2024 06:49 WG2286466 Hexachloro-1,3-butadiene U T8 0.0663 0.276 8 05/15/2024 06:49 WG2286466 Isopropylbenzene 1.78 T8 0.00470 0.0276 8 05/15/2024 06:49 WG2286466 p-Isopropyltoluene 3.09 T8 0.0282 0.0553 8 05/15/2024 06:49 WG2286466 2-Butanone (MEK)U T8 0.702 1.11 8 05/15/2024 06:49 WG2286466 Methylene Chloride U T8 0.0734 0.276 8 05/15/2024 06:49 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.0251 0.276 8 05/15/2024 06:49 WG2286466 Methyl tert-butyl ether U T8 0.00387 0.0111 8 05/15/2024 06:49 WG2286466 Naphthalene U T8 0.0539 0.138 8 05/15/2024 06:49 WG2286466 n-Propylbenzene 3.48 T8 0.0105 0.0553 8 05/15/2024 06:49 WG2286466 Styrene U T8 0.00253 0.138 8 05/15/2024 06:49 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.0105 0.0276 8 05/15/2024 06:49 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.00768 0.0276 8 05/15/2024 06:49 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 7 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 7 of 54 SAMPLE RESULTS - 01 L1736040 SB-1 (2) 14-20' Collected date/time: 04/30/24 14:11 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 1,1,2-Trichlorotrifluoroethane U T8 0.00833 0.0276 8 05/15/2024 06:49 WG2286466 Tetrachloroethene U T8 0.00991 0.0276 8 05/15/2024 06:49 WG2286466 Toluene 71.4 T8 0.144 0.553 80 05/17/2024 16:54 WG2287760 1,2,3-Trichlorobenzene U T8 0.0810 0.138 8 05/15/2024 06:49 WG2286466 1,2,4-Trichlorobenzene U T8 0.0486 0.138 8 05/15/2024 06:49 WG2286466 1,1,1-Trichloroethane U T8 0.0102 0.0276 8 05/15/2024 06:49 WG2286466 1,1,2-Trichloroethane 1.77 T8 0.00660 0.0276 8 05/15/2024 06:49 WG2286466 Trichloroethene U T8 0.00645 0.0111 8 05/15/2024 06:49 WG2286466 Trichlorofluoromethane U T8 0.00915 0.0276 8 05/15/2024 06:49 WG2286466 1,2,3-Trichloropropane U T8 0.0180 0.138 8 05/15/2024 06:49 WG2286466 1,2,4-Trimethylbenzene 84.1 T8 0.174 0.553 80 05/17/2024 16:54 WG2287760 1,2,3-Trimethylbenzene 18.7 J4 T8 0.0174 0.0553 8 05/15/2024 06:49 WG2286466 1,3,5-Trimethylbenzene 18.0 T8 0.0221 0.0553 8 05/15/2024 06:49 WG2286466 Vinyl chloride U T8 0.0128 0.0276 8 05/15/2024 06:49 WG2286466 Xylenes, Total 199 T8 0.0973 0.718 80 05/17/2024 16:54 WG2287760 (S) Toluene-d8 107 75.0-131 05/15/2024 06:49 WG2286466 (S) Toluene-d8 110 75.0-131 05/17/2024 16:54 WG2287760 (S) 4-Bromofluorobenzene 131 67.0-138 05/15/2024 06:49 WG2286466 (S) 4-Bromofluorobenzene 109 67.0-138 05/17/2024 16:54 WG2287760 (S) 1,2-Dichloroethane-d4 101 70.0-130 05/15/2024 06:49 WG2286466 (S) 1,2-Dichloroethane-d4 87.9 70.0-130 05/17/2024 16:54 WG2287760 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00274 0.00714 1 05/15/2024 00:50 WG2286284 Acenaphthene 0.386 0.0498 0.143 20 05/15/2024 23:40 WG2286284 Acenaphthylene U 0.0514 0.143 20 05/15/2024 23:40 WG2286284 Benzo(a)anthracene U 0.00206 0.00714 1 05/15/2024 00:50 WG2286284 Benzo(a)pyrene U 0.00213 0.00714 1 05/15/2024 00:50 WG2286284 Benzo(b)fluoranthene U 0.00182 0.00714 1 05/15/2024 00:50 WG2286284 Benzo(g,h,i)perylene U 0.00211 0.00714 1 05/15/2024 00:50 WG2286284 Benzo(k)fluoranthene U 0.00256 0.00714 1 05/15/2024 00:50 WG2286284 Chrysene U 0.00276 0.00714 1 05/15/2024 00:50 WG2286284 Dibenz(a,h)anthracene U 0.00205 0.00714 1 05/15/2024 00:50 WG2286284 Fluoranthene U 0.00270 0.00714 1 05/15/2024 00:50 WG2286284 Fluorene 0.445 0.0488 0.143 20 05/15/2024 23:40 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00215 0.00714 1 05/15/2024 00:50 WG2286284 Naphthalene 3.42 0.00486 0.0238 1 05/15/2024 00:50 WG2286284 Phenanthrene 0.281 0.00275 0.00714 1 05/15/2024 00:50 WG2286284 Pyrene 0.370 0.00238 0.00714 1 05/15/2024 00:50 WG2286284 1-Methylnaphthalene 2.62 0.00535 0.0238 1 05/15/2024 00:50 WG2286284 2-Methylnaphthalene 4.08 0.00508 0.0238 1 05/15/2024 00:50 WG2286284 2-Chloronaphthalene U 0.111 0.476 20 05/15/2024 23:40 WG2286284 (S) p-Terphenyl-d14 118 J7 23.0-120 05/15/2024 23:40 WG2286284 (S) p-Terphenyl-d14 96.4 23.0-120 05/15/2024 00:50 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/15/2024 00:50 WG2286284 (S) Nitrobenzene-d5 0.000 J7 14.0-149 05/15/2024 23:40 WG2286284 (S) 2-Fluorobiphenyl 120 J7 34.0-125 05/15/2024 23:40 WG2286284 (S) 2-Fluorobiphenyl 40.7 34.0-125 05/15/2024 00:50 WG2286284 Sample Narrative: L1736040-01 WG2286284: Surrogate failure due to matrix interference L1736040-01 WG2286284: Dilution and surrogate failure due to matrix interference. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 8 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 8 of 54 SAMPLE RESULTS - 02 L1736040 SB-1 (2) 20-22' Collected date/time: 04/30/24 14:13 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.7 1 05/15/2024 10:56 WG2286509 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 0.107 T8 0.0520 0.0712 1 05/15/2024 03:07 WG2286466 Acrylonitrile U T8 0.00514 0.0178 1 05/15/2024 03:07 WG2286466 Benzene U T8 0.000665 0.00142 1 05/15/2024 03:07 WG2286466 Bromobenzene U T8 0.00128 0.0178 1 05/15/2024 03:07 WG2286466 Bromodichloromethane U T8 0.00103 0.00356 1 05/15/2024 03:07 WG2286466 Bromoform U T8 0.00167 0.0356 1 05/15/2024 03:07 WG2286466 Bromomethane U T8 0.00280 0.0178 1 05/15/2024 03:07 WG2286466 n-Butylbenzene U T8 0.00747 0.0178 1 05/15/2024 03:07 WG2286466 sec-Butylbenzene U T8 0.00410 0.0178 1 05/15/2024 03:07 WG2286466 tert-Butylbenzene U T8 0.00278 0.00712 1 05/15/2024 03:07 WG2286466 Carbon tetrachloride U T8 0.00128 0.00712 1 05/15/2024 03:07 WG2286466 Chlorobenzene U T8 0.000299 0.00356 1 05/15/2024 03:07 WG2286466 Chlorodibromomethane U T8 0.000871 0.00356 1 05/15/2024 03:07 WG2286466 Chloroethane U T8 0.00242 0.00712 1 05/15/2024 03:07 WG2286466 Chloroform U T8 0.00147 0.00356 1 05/15/2024 03:07 WG2286466 Chloromethane U T8 0.00619 0.0178 1 05/15/2024 03:07 WG2286466 2-Chlorotoluene U T8 0.00123 0.00356 1 05/15/2024 03:07 WG2286466 4-Chlorotoluene U T8 0.000641 0.00712 1 05/15/2024 03:07 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00555 0.0356 1 05/15/2024 03:07 WG2286466 1,2-Dibromoethane U T8 0.000922 0.00356 1 05/15/2024 03:07 WG2286466 Dibromomethane U T8 0.00107 0.00712 1 05/15/2024 03:07 WG2286466 1,2-Dichlorobenzene U T8 0.000605 0.00712 1 05/15/2024 03:07 WG2286466 1,3-Dichlorobenzene U T8 0.000854 0.00712 1 05/15/2024 03:07 WG2286466 1,4-Dichlorobenzene U T8 0.000996 0.00712 1 05/15/2024 03:07 WG2286466 Dichlorodifluoromethane U T8 0.00229 0.00712 1 05/15/2024 03:07 WG2286466 1,1-Dichloroethane U T8 0.000699 0.00356 1 05/15/2024 03:07 WG2286466 1,2-Dichloroethane U T8 0.000924 0.00356 1 05/15/2024 03:07 WG2286466 1,1-Dichloroethene U T8 0.000863 0.00356 1 05/15/2024 03:07 WG2286466 cis-1,2-Dichloroethene U T8 0.00104 0.00356 1 05/15/2024 03:07 WG2286466 trans-1,2-Dichloroethene U T8 0.00148 0.00712 1 05/15/2024 03:07 WG2286466 1,2-Dichloropropane U T8 0.00202 0.00712 1 05/15/2024 03:07 WG2286466 1,1-Dichloropropene U T8 0.00115 0.00356 1 05/15/2024 03:07 WG2286466 1,3-Dichloropropane U T8 0.000713 0.00712 1 05/15/2024 03:07 WG2286466 cis-1,3-Dichloropropene U T8 0.00108 0.00356 1 05/15/2024 03:07 WG2286466 trans-1,3-Dichloropropene U T8 0.00162 0.00712 1 05/15/2024 03:07 WG2286466 2,2-Dichloropropane U T8 0.00196 0.00356 1 05/15/2024 03:07 WG2286466 Di-isopropyl ether U T8 0.000584 0.00142 1 05/15/2024 03:07 WG2286466 Ethylbenzene U T8 0.00105 0.00356 1 05/15/2024 03:07 WG2286466 Hexachloro-1,3-butadiene U T8 0.00854 0.0356 1 05/15/2024 03:07 WG2286466 Isopropylbenzene U T8 0.000605 0.00356 1 05/15/2024 03:07 WG2286466 p-Isopropyltoluene U T8 0.00363 0.00712 1 05/15/2024 03:07 WG2286466 2-Butanone (MEK)U T8 0.0904 0.142 1 05/15/2024 03:07 WG2286466 Methylene Chloride U T8 0.00945 0.0356 1 05/15/2024 03:07 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00325 0.0356 1 05/15/2024 03:07 WG2286466 Methyl tert-butyl ether U T8 0.000498 0.00142 1 05/15/2024 03:07 WG2286466 Naphthalene U T8 0.00695 0.0178 1 05/15/2024 03:07 WG2286466 n-Propylbenzene U T8 0.00135 0.00712 1 05/15/2024 03:07 WG2286466 Styrene U T8 0.000326 0.0178 1 05/15/2024 03:07 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00135 0.00356 1 05/15/2024 03:07 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000989 0.00356 1 05/15/2024 03:07 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 9 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 9 of 54 SAMPLE RESULTS - 02 L1736040 SB-1 (2) 20-22' Collected date/time: 04/30/24 14:13 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 1,1,2-Trichlorotrifluoroethane U T8 0.00107 0.00356 1 05/15/2024 03:07 WG2286466 Tetrachloroethene U T8 0.00128 0.00356 1 05/15/2024 03:07 WG2286466 Toluene 0.0340 T8 0.00185 0.00712 1 05/15/2024 03:07 WG2286466 1,2,3-Trichlorobenzene U T8 0.0104 0.0178 1 05/15/2024 03:07 WG2286466 1,2,4-Trichlorobenzene U T8 0.00626 0.0178 1 05/15/2024 03:07 WG2286466 1,1,1-Trichloroethane U T8 0.00131 0.00356 1 05/15/2024 03:07 WG2286466 1,1,2-Trichloroethane U T8 0.000850 0.00356 1 05/15/2024 03:07 WG2286466 Trichloroethene U T8 0.000831 0.00142 1 05/15/2024 03:07 WG2286466 Trichlorofluoromethane U T8 0.00118 0.00356 1 05/15/2024 03:07 WG2286466 1,2,3-Trichloropropane U T8 0.00231 0.0178 1 05/15/2024 03:07 WG2286466 1,2,4-Trimethylbenzene 0.0133 T8 0.00225 0.00712 1 05/15/2024 03:07 WG2286466 1,2,3-Trimethylbenzene 0.00555 J J4 T8 0.00225 0.00712 1 05/15/2024 03:07 WG2286466 1,3,5-Trimethylbenzene 0.00676 J T8 0.00285 0.00712 1 05/15/2024 03:07 WG2286466 Vinyl chloride U T8 0.00165 0.00356 1 05/15/2024 03:07 WG2286466 Xylenes, Total 0.0208 T8 0.00125 0.00925 1 05/15/2024 03:07 WG2286466 (S) Toluene-d8 112 75.0-131 05/15/2024 03:07 WG2286466 (S) 4-Bromofluorobenzene 98.7 67.0-138 05/15/2024 03:07 WG2286466 (S) 1,2-Dichloroethane-d4 88.4 70.0-130 05/15/2024 03:07 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00278 0.00725 1 05/15/2024 01:07 WG2286284 Acenaphthene U 0.00253 0.00725 1 05/15/2024 01:07 WG2286284 Acenaphthylene U 0.00261 0.00725 1 05/15/2024 01:07 WG2286284 Benzo(a)anthracene U 0.00209 0.00725 1 05/15/2024 01:07 WG2286284 Benzo(a)pyrene U 0.00216 0.00725 1 05/15/2024 01:07 WG2286284 Benzo(b)fluoranthene U 0.00185 0.00725 1 05/15/2024 01:07 WG2286284 Benzo(g,h,i)perylene U 0.00214 0.00725 1 05/15/2024 01:07 WG2286284 Benzo(k)fluoranthene U 0.00260 0.00725 1 05/15/2024 01:07 WG2286284 Chrysene U 0.00280 0.00725 1 05/15/2024 01:07 WG2286284 Dibenz(a,h)anthracene U 0.00208 0.00725 1 05/15/2024 01:07 WG2286284 Fluoranthene U 0.00274 0.00725 1 05/15/2024 01:07 WG2286284 Fluorene U 0.00248 0.00725 1 05/15/2024 01:07 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00219 0.00725 1 05/15/2024 01:07 WG2286284 Naphthalene U 0.00493 0.0242 1 05/15/2024 01:07 WG2286284 Phenanthrene U 0.00279 0.00725 1 05/15/2024 01:07 WG2286284 Pyrene U 0.00242 0.00725 1 05/15/2024 01:07 WG2286284 1-Methylnaphthalene U 0.00543 0.0242 1 05/15/2024 01:07 WG2286284 2-Methylnaphthalene U 0.00516 0.0242 1 05/15/2024 01:07 WG2286284 2-Chloronaphthalene U 0.00563 0.0242 1 05/15/2024 01:07 WG2286284 (S) p-Terphenyl-d14 96.8 23.0-120 05/15/2024 01:07 WG2286284 (S) Nitrobenzene-d5 85.6 14.0-149 05/15/2024 01:07 WG2286284 (S) 2-Fluorobiphenyl 84.5 34.0-125 05/15/2024 01:07 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 10 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 10 of 54 SAMPLE RESULTS - 03 L1736040 SB-3 (2)12-18' Collected date/time: 04/30/24 14:54 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.5 1 05/15/2024 10:56 WG2286509 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 T8 0.328 0.450 8 05/15/2024 07:08 WG2286466 Acrylonitrile U T8 0.0325 0.112 8 05/15/2024 07:08 WG2286466 Benzene U T8 0.00420 0.00899 8 05/15/2024 07:08 WG2286466 Bromobenzene U T8 0.00809 0.112 8 05/15/2024 07:08 WG2286466 Bromodichloromethane U T8 0.00652 0.0225 8 05/15/2024 07:08 WG2286466 Bromoform U T8 0.0105 0.225 8 05/15/2024 07:08 WG2286466 Bromomethane U T8 0.0178 0.112 8 05/15/2024 07:08 WG2286466 n-Butylbenzene U T8 0.0472 0.112 8 05/15/2024 07:08 WG2286466 sec-Butylbenzene 0.308 T8 0.0259 0.112 8 05/15/2024 07:08 WG2286466 tert-Butylbenzene U T8 0.0175 0.0450 8 05/15/2024 07:08 WG2286466 Carbon tetrachloride U T8 0.00807 0.0450 8 05/15/2024 07:08 WG2286466 Chlorobenzene U T8 0.00189 0.0225 8 05/15/2024 07:08 WG2286466 Chlorodibromomethane U T8 0.00551 0.0225 8 05/15/2024 07:08 WG2286466 Chloroethane U T8 0.0153 0.0450 8 05/15/2024 07:08 WG2286466 Chloroform U T8 0.00926 0.0225 8 05/15/2024 07:08 WG2286466 Chloromethane U T8 0.0391 0.112 8 05/15/2024 07:08 WG2286466 2-Chlorotoluene U T8 0.00778 0.0225 8 05/15/2024 07:08 WG2286466 4-Chlorotoluene U T8 0.00405 0.0450 8 05/15/2024 07:08 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.0351 0.225 8 05/15/2024 07:08 WG2286466 1,2-Dibromoethane U T8 0.00582 0.0225 8 05/15/2024 07:08 WG2286466 Dibromomethane U T8 0.00674 0.0450 8 05/15/2024 07:08 WG2286466 1,2-Dichlorobenzene U T8 0.00382 0.0450 8 05/15/2024 07:08 WG2286466 1,3-Dichlorobenzene U T8 0.00540 0.0450 8 05/15/2024 07:08 WG2286466 1,4-Dichlorobenzene U T8 0.00629 0.0450 8 05/15/2024 07:08 WG2286466 Dichlorodifluoromethane U T8 0.0145 0.0450 8 05/15/2024 07:08 WG2286466 1,1-Dichloroethane U T8 0.00442 0.0225 8 05/15/2024 07:08 WG2286466 1,2-Dichloroethane U T8 0.00583 0.0225 8 05/15/2024 07:08 WG2286466 1,1-Dichloroethene U T8 0.00545 0.0225 8 05/15/2024 07:08 WG2286466 cis-1,2-Dichloroethene U T8 0.00660 0.0225 8 05/15/2024 07:08 WG2286466 trans-1,2-Dichloroethene U T8 0.00935 0.0450 8 05/15/2024 07:08 WG2286466 1,2-Dichloropropane U T8 0.0128 0.0450 8 05/15/2024 07:08 WG2286466 1,1-Dichloropropene U T8 0.00727 0.0225 8 05/15/2024 07:08 WG2286466 1,3-Dichloropropane U T8 0.00451 0.0450 8 05/15/2024 07:08 WG2286466 cis-1,3-Dichloropropene U T8 0.00681 0.0225 8 05/15/2024 07:08 WG2286466 trans-1,3-Dichloropropene U T8 0.0103 0.0450 8 05/15/2024 07:08 WG2286466 2,2-Dichloropropane U T8 0.0124 0.0225 8 05/15/2024 07:08 WG2286466 Di-isopropyl ether U T8 0.00369 0.00899 8 05/15/2024 07:08 WG2286466 Ethylbenzene 0.505 T8 0.00663 0.0225 8 05/15/2024 07:08 WG2286466 Hexachloro-1,3-butadiene U T8 0.0540 0.225 8 05/15/2024 07:08 WG2286466 Isopropylbenzene 0.223 T8 0.00382 0.0225 8 05/15/2024 07:08 WG2286466 p-Isopropyltoluene 0.287 T8 0.0229 0.0450 8 05/15/2024 07:08 WG2286466 2-Butanone (MEK)U T8 0.571 0.899 8 05/15/2024 07:08 WG2286466 Methylene Chloride U T8 0.0597 0.225 8 05/15/2024 07:08 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.0205 0.225 8 05/15/2024 07:08 WG2286466 Methyl tert-butyl ether U T8 0.00315 0.00899 8 05/15/2024 07:08 WG2286466 Naphthalene U T8 0.0438 0.112 8 05/15/2024 07:08 WG2286466 n-Propylbenzene 0.732 T8 0.00854 0.0450 8 05/15/2024 07:08 WG2286466 Styrene U T8 0.00206 0.112 8 05/15/2024 07:08 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00852 0.0225 8 05/15/2024 07:08 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.00625 0.0225 8 05/15/2024 07:08 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 11 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 11 of 54 SAMPLE RESULTS - 03 L1736040 SB-3 (2)12-18' Collected date/time: 04/30/24 14:54 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 1,1,2-Trichlorotrifluoroethane U T8 0.00678 0.0225 8 05/15/2024 07:08 WG2286466 Tetrachloroethene U T8 0.00806 0.0225 8 05/15/2024 07:08 WG2286466 Toluene 0.730 T8 0.0117 0.0450 8 05/17/2024 17:14 WG2287760 1,2,3-Trichlorobenzene U T8 0.0659 0.112 8 05/15/2024 07:08 WG2286466 1,2,4-Trichlorobenzene U T8 0.0396 0.112 8 05/15/2024 07:08 WG2286466 1,1,1-Trichloroethane U T8 0.00830 0.0225 8 05/15/2024 07:08 WG2286466 1,1,2-Trichloroethane U T8 0.00537 0.0225 8 05/15/2024 07:08 WG2286466 Trichloroethene U T8 0.00525 0.00899 8 05/15/2024 07:08 WG2286466 Trichlorofluoromethane U T8 0.00744 0.0225 8 05/15/2024 07:08 WG2286466 1,2,3-Trichloropropane U T8 0.0146 0.112 8 05/15/2024 07:08 WG2286466 1,2,4-Trimethylbenzene 7.33 T8 0.0142 0.0450 8 05/15/2024 07:08 WG2286466 1,2,3-Trimethylbenzene 2.59 J4 T8 0.0142 0.0450 8 05/15/2024 07:08 WG2286466 1,3,5-Trimethylbenzene 2.61 T8 0.0180 0.0450 8 05/15/2024 07:08 WG2286466 Vinyl chloride U T8 0.0104 0.0225 8 05/15/2024 07:08 WG2286466 Xylenes, Total 12.0 T8 0.00791 0.0585 8 05/15/2024 07:08 WG2286466 (S) Toluene-d8 115 75.0-131 05/15/2024 07:08 WG2286466 (S) Toluene-d8 113 75.0-131 05/17/2024 17:14 WG2287760 (S) 4-Bromofluorobenzene 117 67.0-138 05/15/2024 07:08 WG2286466 (S) 4-Bromofluorobenzene 108 67.0-138 05/17/2024 17:14 WG2287760 (S) 1,2-Dichloroethane-d4 91.3 70.0-130 05/15/2024 07:08 WG2286466 (S) 1,2-Dichloroethane-d4 91.2 70.0-130 05/17/2024 17:14 WG2287760 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00241 0.00628 1 05/15/2024 01:25 WG2286284 Acenaphthene 0.259 0.0437 0.126 20 05/15/2024 23:59 WG2286284 Acenaphthylene U 0.0452 0.126 20 05/15/2024 23:59 WG2286284 Benzo(a)anthracene U 0.00181 0.00628 1 05/15/2024 01:25 WG2286284 Benzo(a)pyrene U 0.00187 0.00628 1 05/15/2024 01:25 WG2286284 Benzo(b)fluoranthene U 0.00160 0.00628 1 05/15/2024 01:25 WG2286284 Benzo(g,h,i)perylene U 0.00185 0.00628 1 05/15/2024 01:25 WG2286284 Benzo(k)fluoranthene U 0.00225 0.00628 1 05/15/2024 01:25 WG2286284 Chrysene U 0.00243 0.00628 1 05/15/2024 01:25 WG2286284 Dibenz(a,h)anthracene U 0.00180 0.00628 1 05/15/2024 01:25 WG2286284 Fluoranthene U 0.00238 0.00628 1 05/15/2024 01:25 WG2286284 Fluorene 0.309 0.0429 0.126 20 05/15/2024 23:59 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00189 0.00628 1 05/15/2024 01:25 WG2286284 Naphthalene 2.91 0.00427 0.0209 1 05/15/2024 01:25 WG2286284 Phenanthrene 0.203 0.00242 0.00628 1 05/15/2024 01:25 WG2286284 Pyrene 0.250 0.00209 0.00628 1 05/15/2024 01:25 WG2286284 1-Methylnaphthalene 1.99 0.00470 0.0209 1 05/15/2024 01:25 WG2286284 2-Methylnaphthalene 3.09 0.00447 0.0209 1 05/15/2024 01:25 WG2286284 2-Chloronaphthalene U 0.0975 0.419 20 05/15/2024 23:59 WG2286284 (S) p-Terphenyl-d14 85.3 23.0-120 05/15/2024 01:25 WG2286284 (S) p-Terphenyl-d14 87.2 J7 23.0-120 05/15/2024 23:59 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/15/2024 01:25 WG2286284 (S) Nitrobenzene-d5 0.000 J7 14.0-149 05/15/2024 23:59 WG2286284 (S) 2-Fluorobiphenyl 38.9 34.0-125 05/15/2024 01:25 WG2286284 (S) 2-Fluorobiphenyl 97.8 J7 34.0-125 05/15/2024 23:59 WG2286284 Sample Narrative: L1736040-03 WG2286284: Surrogate failure due to matrix interference L1736040-03 WG2286284: Dilution and surrogate failure due to matrix interference. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 12 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 12 of 54 SAMPLE RESULTS - 04 L1736040 SB-3 (2) 18-25' Collected date/time: 04/30/24 14:58 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.3 1 05/15/2024 10:56 WG2286509 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 T8 0.0407 0.0557 1 05/15/2024 03:27 WG2286466 Acrylonitrile U T8 0.00402 0.0139 1 05/15/2024 03:27 WG2286466 Benzene U T8 0.000520 0.00111 1 05/15/2024 03:27 WG2286466 Bromobenzene U T8 0.00100 0.0139 1 05/15/2024 03:27 WG2286466 Bromodichloromethane U T8 0.000808 0.00279 1 05/15/2024 03:27 WG2286466 Bromoform U T8 0.00130 0.0279 1 05/15/2024 03:27 WG2286466 Bromomethane U T8 0.00220 0.0139 1 05/15/2024 03:27 WG2286466 n-Butylbenzene U T8 0.00585 0.0139 1 05/15/2024 03:27 WG2286466 sec-Butylbenzene U T8 0.00321 0.0139 1 05/15/2024 03:27 WG2286466 tert-Butylbenzene U T8 0.00217 0.00557 1 05/15/2024 03:27 WG2286466 Carbon tetrachloride U T8 0.00100 0.00557 1 05/15/2024 03:27 WG2286466 Chlorobenzene U T8 0.000234 0.00279 1 05/15/2024 03:27 WG2286466 Chlorodibromomethane U T8 0.000682 0.00279 1 05/15/2024 03:27 WG2286466 Chloroethane U T8 0.00189 0.00557 1 05/15/2024 03:27 WG2286466 Chloroform U T8 0.00115 0.00279 1 05/15/2024 03:27 WG2286466 Chloromethane U T8 0.00485 0.0139 1 05/15/2024 03:27 WG2286466 2-Chlorotoluene U T8 0.000964 0.00279 1 05/15/2024 03:27 WG2286466 4-Chlorotoluene U T8 0.000501 0.00557 1 05/15/2024 03:27 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00435 0.0279 1 05/15/2024 03:27 WG2286466 1,2-Dibromoethane U T8 0.000722 0.00279 1 05/15/2024 03:27 WG2286466 Dibromomethane U T8 0.000836 0.00557 1 05/15/2024 03:27 WG2286466 1,2-Dichlorobenzene U T8 0.000474 0.00557 1 05/15/2024 03:27 WG2286466 1,3-Dichlorobenzene U T8 0.000669 0.00557 1 05/15/2024 03:27 WG2286466 1,4-Dichlorobenzene U T8 0.000780 0.00557 1 05/15/2024 03:27 WG2286466 Dichlorodifluoromethane U T8 0.00179 0.00557 1 05/15/2024 03:27 WG2286466 1,1-Dichloroethane U T8 0.000547 0.00279 1 05/15/2024 03:27 WG2286466 1,2-Dichloroethane U T8 0.000723 0.00279 1 05/15/2024 03:27 WG2286466 1,1-Dichloroethene U T8 0.000675 0.00279 1 05/15/2024 03:27 WG2286466 cis-1,2-Dichloroethene U T8 0.000818 0.00279 1 05/15/2024 03:27 WG2286466 trans-1,2-Dichloroethene U T8 0.00116 0.00557 1 05/15/2024 03:27 WG2286466 1,2-Dichloropropane U T8 0.00158 0.00557 1 05/15/2024 03:27 WG2286466 1,1-Dichloropropene U T8 0.000901 0.00279 1 05/15/2024 03:27 WG2286466 1,3-Dichloropropane U T8 0.000558 0.00557 1 05/15/2024 03:27 WG2286466 cis-1,3-Dichloropropene U T8 0.000843 0.00279 1 05/15/2024 03:27 WG2286466 trans-1,3-Dichloropropene U T8 0.00127 0.00557 1 05/15/2024 03:27 WG2286466 2,2-Dichloropropane U T8 0.00154 0.00279 1 05/15/2024 03:27 WG2286466 Di-isopropyl ether U T8 0.000457 0.00111 1 05/15/2024 03:27 WG2286466 Ethylbenzene U T8 0.000821 0.00279 1 05/15/2024 03:27 WG2286466 Hexachloro-1,3-butadiene U T8 0.00669 0.0279 1 05/15/2024 03:27 WG2286466 Isopropylbenzene U T8 0.000474 0.00279 1 05/15/2024 03:27 WG2286466 p-Isopropyltoluene U T8 0.00284 0.00557 1 05/15/2024 03:27 WG2286466 2-Butanone (MEK)U T8 0.0708 0.111 1 05/15/2024 03:27 WG2286466 Methylene Chloride U T8 0.00740 0.0279 1 05/15/2024 03:27 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00254 0.0279 1 05/15/2024 03:27 WG2286466 Methyl tert-butyl ether U T8 0.000390 0.00111 1 05/15/2024 03:27 WG2286466 Naphthalene U T8 0.00544 0.0139 1 05/15/2024 03:27 WG2286466 n-Propylbenzene U T8 0.00106 0.00557 1 05/15/2024 03:27 WG2286466 Styrene U T8 0.000255 0.0139 1 05/15/2024 03:27 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00106 0.00279 1 05/15/2024 03:27 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000774 0.00279 1 05/15/2024 03:27 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 13 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 13 of 54 SAMPLE RESULTS - 04 L1736040 SB-3 (2) 18-25' Collected date/time: 04/30/24 14:58 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 1,1,2-Trichlorotrifluoroethane U T8 0.000840 0.00279 1 05/15/2024 03:27 WG2286466 Tetrachloroethene U T8 0.000998 0.00279 1 05/15/2024 03:27 WG2286466 Toluene 0.00399 J T8 0.00145 0.00557 1 05/15/2024 03:27 WG2286466 1,2,3-Trichlorobenzene U T8 0.00817 0.0139 1 05/15/2024 03:27 WG2286466 1,2,4-Trichlorobenzene U T8 0.00490 0.0139 1 05/15/2024 03:27 WG2286466 1,1,1-Trichloroethane U T8 0.00103 0.00279 1 05/15/2024 03:27 WG2286466 1,1,2-Trichloroethane U T8 0.000665 0.00279 1 05/15/2024 03:27 WG2286466 Trichloroethene U T8 0.000651 0.00111 1 05/15/2024 03:27 WG2286466 Trichlorofluoromethane U T8 0.000921 0.00279 1 05/15/2024 03:27 WG2286466 1,2,3-Trichloropropane U T8 0.00181 0.0139 1 05/15/2024 03:27 WG2286466 1,2,4-Trimethylbenzene 0.0118 T8 0.00176 0.00557 1 05/15/2024 03:27 WG2286466 1,2,3-Trimethylbenzene 0.00518 J4 T8 0.00176 0.00557 1 05/15/2024 03:27 WG2286466 1,3,5-Trimethylbenzene 0.00645 T8 0.00223 0.00557 1 05/15/2024 03:27 WG2286466 Vinyl chloride U T8 0.00129 0.00279 1 05/15/2024 03:27 WG2286466 Xylenes, Total 0.0143 T8 0.000981 0.00724 1 05/15/2024 03:27 WG2286466 (S) Toluene-d8 109 75.0-131 05/15/2024 03:27 WG2286466 (S) 4-Bromofluorobenzene 103 67.0-138 05/15/2024 03:27 WG2286466 (S) 1,2-Dichloroethane-d4 88.7 70.0-130 05/15/2024 03:27 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00241 0.00629 1 05/15/2024 01:43 WG2286284 Acenaphthene U 0.00219 0.00629 1 05/15/2024 01:43 WG2286284 Acenaphthylene U 0.00227 0.00629 1 05/15/2024 01:43 WG2286284 Benzo(a)anthracene U 0.00181 0.00629 1 05/15/2024 01:43 WG2286284 Benzo(a)pyrene U 0.00188 0.00629 1 05/15/2024 01:43 WG2286284 Benzo(b)fluoranthene U 0.00160 0.00629 1 05/15/2024 01:43 WG2286284 Benzo(g,h,i)perylene U 0.00186 0.00629 1 05/15/2024 01:43 WG2286284 Benzo(k)fluoranthene U 0.00225 0.00629 1 05/15/2024 01:43 WG2286284 Chrysene U 0.00243 0.00629 1 05/15/2024 01:43 WG2286284 Dibenz(a,h)anthracene U 0.00180 0.00629 1 05/15/2024 01:43 WG2286284 Fluoranthene U 0.00238 0.00629 1 05/15/2024 01:43 WG2286284 Fluorene U 0.00215 0.00629 1 05/15/2024 01:43 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00190 0.00629 1 05/15/2024 01:43 WG2286284 Naphthalene U 0.00428 0.0210 1 05/15/2024 01:43 WG2286284 Phenanthrene U 0.00242 0.00629 1 05/15/2024 01:43 WG2286284 Pyrene U 0.00210 0.00629 1 05/15/2024 01:43 WG2286284 1-Methylnaphthalene U 0.00471 0.0210 1 05/15/2024 01:43 WG2286284 2-Methylnaphthalene U 0.00448 0.0210 1 05/15/2024 01:43 WG2286284 2-Chloronaphthalene U 0.00489 0.0210 1 05/15/2024 01:43 WG2286284 (S) p-Terphenyl-d14 61.8 23.0-120 05/15/2024 01:43 WG2286284 (S) Nitrobenzene-d5 51.0 14.0-149 05/15/2024 01:43 WG2286284 (S) 2-Fluorobiphenyl 58.1 34.0-125 05/15/2024 01:43 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 14 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 14 of 54 SAMPLE RESULTS - 05 L1736040 SB-6 (2) 12.5-17.5' Collected date/time: 04/30/24 11:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 05/15/2024 10:56 WG2286509 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 T8 0.346 0.475 8 05/15/2024 07:28 WG2286466 Acrylonitrile U T8 0.0343 0.119 8 05/15/2024 07:28 WG2286466 Benzene U T8 0.00444 0.00949 8 05/15/2024 07:28 WG2286466 Bromobenzene U T8 0.00854 0.119 8 05/15/2024 07:28 WG2286466 Bromodichloromethane U T8 0.00688 0.0237 8 05/15/2024 07:28 WG2286466 Bromoform U T8 0.0111 0.237 8 05/15/2024 07:28 WG2286466 Bromomethane U T8 0.0187 0.119 8 05/15/2024 07:28 WG2286466 n-Butylbenzene U T8 0.0498 0.119 8 05/15/2024 07:28 WG2286466 sec-Butylbenzene U T8 0.0273 0.119 8 05/15/2024 07:28 WG2286466 tert-Butylbenzene 0.142 T8 0.0185 0.0475 8 05/15/2024 07:28 WG2286466 Carbon tetrachloride U T8 0.00852 0.0475 8 05/15/2024 07:28 WG2286466 Chlorobenzene U T8 0.00199 0.0237 8 05/15/2024 07:28 WG2286466 Chlorodibromomethane U T8 0.00581 0.0237 8 05/15/2024 07:28 WG2286466 Chloroethane U T8 0.0161 0.0475 8 05/15/2024 07:28 WG2286466 Chloroform U T8 0.00978 0.0237 8 05/15/2024 07:28 WG2286466 Chloromethane U T8 0.0413 0.119 8 05/15/2024 07:28 WG2286466 2-Chlorotoluene U T8 0.00821 0.0237 8 05/15/2024 07:28 WG2286466 4-Chlorotoluene U T8 0.00427 0.0475 8 05/15/2024 07:28 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.0370 0.237 8 05/15/2024 07:28 WG2286466 1,2-Dibromoethane U T8 0.00615 0.0237 8 05/15/2024 07:28 WG2286466 Dibromomethane U T8 0.00712 0.0475 8 05/15/2024 07:28 WG2286466 1,2-Dichlorobenzene U T8 0.00403 0.0475 8 05/15/2024 07:28 WG2286466 1,3-Dichlorobenzene U T8 0.00569 0.0475 8 05/15/2024 07:28 WG2286466 1,4-Dichlorobenzene U T8 0.00664 0.0475 8 05/15/2024 07:28 WG2286466 Dichlorodifluoromethane U T8 0.0153 0.0475 8 05/15/2024 07:28 WG2286466 1,1-Dichloroethane U T8 0.00466 0.0237 8 05/15/2024 07:28 WG2286466 1,2-Dichloroethane U T8 0.00616 0.0237 8 05/15/2024 07:28 WG2286466 1,1-Dichloroethene U T8 0.00575 0.0237 8 05/15/2024 07:28 WG2286466 cis-1,2-Dichloroethene U T8 0.00696 0.0237 8 05/15/2024 07:28 WG2286466 trans-1,2-Dichloroethene U T8 0.00987 0.0475 8 05/15/2024 07:28 WG2286466 1,2-Dichloropropane U T8 0.0135 0.0475 8 05/15/2024 07:28 WG2286466 1,1-Dichloropropene U T8 0.00768 0.0237 8 05/15/2024 07:28 WG2286466 1,3-Dichloropropane U T8 0.00476 0.0475 8 05/15/2024 07:28 WG2286466 cis-1,3-Dichloropropene U T8 0.00719 0.0237 8 05/15/2024 07:28 WG2286466 trans-1,3-Dichloropropene U T8 0.0108 0.0475 8 05/15/2024 07:28 WG2286466 2,2-Dichloropropane U T8 0.0130 0.0237 8 05/15/2024 07:28 WG2286466 Di-isopropyl ether U T8 0.00389 0.00949 8 05/15/2024 07:28 WG2286466 Ethylbenzene 0.0502 T8 0.00700 0.0237 8 05/15/2024 07:28 WG2286466 Hexachloro-1,3-butadiene U T8 0.0569 0.237 8 05/15/2024 07:28 WG2286466 Isopropylbenzene 0.0223 J T8 0.00403 0.0237 8 05/15/2024 07:28 WG2286466 p-Isopropyltoluene 0.0783 T8 0.0242 0.0475 8 05/15/2024 07:28 WG2286466 2-Butanone (MEK)U T8 0.603 0.949 8 05/15/2024 07:28 WG2286466 Methylene Chloride U T8 0.0630 0.237 8 05/15/2024 07:28 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.0216 0.237 8 05/15/2024 07:28 WG2286466 Methyl tert-butyl ether U T8 0.00332 0.00949 8 05/15/2024 07:28 WG2286466 Naphthalene U T8 0.0463 0.119 8 05/15/2024 07:28 WG2286466 n-Propylbenzene 0.0584 T8 0.00902 0.0475 8 05/15/2024 07:28 WG2286466 Styrene U T8 0.00217 0.119 8 05/15/2024 07:28 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00899 0.0237 8 05/15/2024 07:28 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.00660 0.0237 8 05/15/2024 07:28 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 15 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 15 of 54 SAMPLE RESULTS - 05 L1736040 SB-6 (2) 12.5-17.5' Collected date/time: 04/30/24 11:10 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 1,1,2-Trichlorotrifluoroethane U T8 0.00715 0.0237 8 05/15/2024 07:28 WG2286466 Tetrachloroethene U T8 0.00851 0.0237 8 05/15/2024 07:28 WG2286466 Toluene 0.135 T8 0.0123 0.0475 8 05/17/2024 17:34 WG2287760 1,2,3-Trichlorobenzene U T8 0.0695 0.119 8 05/15/2024 07:28 WG2286466 1,2,4-Trichlorobenzene U T8 0.0418 0.119 8 05/15/2024 07:28 WG2286466 1,1,1-Trichloroethane U T8 0.00876 0.0237 8 05/15/2024 07:28 WG2286466 1,1,2-Trichloroethane U T8 0.00567 0.0237 8 05/15/2024 07:28 WG2286466 Trichloroethene U T8 0.00554 0.00949 8 05/15/2024 07:28 WG2286466 Trichlorofluoromethane U T8 0.00785 0.0237 8 05/15/2024 07:28 WG2286466 1,2,3-Trichloropropane U T8 0.0154 0.119 8 05/15/2024 07:28 WG2286466 1,2,4-Trimethylbenzene 0.922 T8 0.0149 0.0475 8 05/17/2024 17:34 WG2287760 1,2,3-Trimethylbenzene 0.361 J4 T8 0.0149 0.0475 8 05/15/2024 07:28 WG2286466 1,3,5-Trimethylbenzene 0.266 T8 0.0190 0.0475 8 05/15/2024 07:28 WG2286466 Vinyl chloride U T8 0.0110 0.0237 8 05/15/2024 07:28 WG2286466 Xylenes, Total 0.695 T8 0.00835 0.0617 8 05/17/2024 17:34 WG2287760 (S) Toluene-d8 114 75.0-131 05/15/2024 07:28 WG2286466 (S) Toluene-d8 112 75.0-131 05/17/2024 17:34 WG2287760 (S) 4-Bromofluorobenzene 112 67.0-138 05/15/2024 07:28 WG2286466 (S) 4-Bromofluorobenzene 101 67.0-138 05/17/2024 17:34 WG2287760 (S) 1,2-Dichloroethane-d4 92.8 70.0-130 05/15/2024 07:28 WG2286466 (S) 1,2-Dichloroethane-d4 89.5 70.0-130 05/17/2024 17:34 WG2287760 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00248 0.00648 1 05/15/2024 02:00 WG2286284 Acenaphthene U 0.00226 0.00648 1 05/15/2024 02:00 WG2286284 Acenaphthylene U 0.00233 0.00648 1 05/15/2024 02:00 WG2286284 Benzo(a)anthracene U 0.00187 0.00648 1 05/15/2024 02:00 WG2286284 Benzo(a)pyrene U 0.00193 0.00648 1 05/15/2024 02:00 WG2286284 Benzo(b)fluoranthene U 0.00165 0.00648 1 05/15/2024 02:00 WG2286284 Benzo(g,h,i)perylene U 0.00191 0.00648 1 05/15/2024 02:00 WG2286284 Benzo(k)fluoranthene U 0.00232 0.00648 1 05/15/2024 02:00 WG2286284 Chrysene U 0.00251 0.00648 1 05/15/2024 02:00 WG2286284 Dibenz(a,h)anthracene U 0.00186 0.00648 1 05/15/2024 02:00 WG2286284 Fluoranthene U 0.00245 0.00648 1 05/15/2024 02:00 WG2286284 Fluorene 0.0106 0.00221 0.00648 1 05/15/2024 02:00 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00195 0.00648 1 05/15/2024 02:00 WG2286284 Naphthalene U 0.00441 0.0216 1 05/15/2024 02:00 WG2286284 Phenanthrene 0.0149 0.00249 0.00648 1 05/15/2024 02:00 WG2286284 Pyrene 0.0265 0.00216 0.00648 1 05/15/2024 02:00 WG2286284 1-Methylnaphthalene 0.0963 0.00485 0.0216 1 05/15/2024 02:00 WG2286284 2-Methylnaphthalene 0.152 0.00461 0.0216 1 05/15/2024 02:00 WG2286284 2-Chloronaphthalene U 0.00503 0.0216 1 05/15/2024 02:00 WG2286284 (S) p-Terphenyl-d14 71.7 23.0-120 05/15/2024 02:00 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/15/2024 02:00 WG2286284 (S) 2-Fluorobiphenyl 65.3 34.0-125 05/15/2024 02:00 WG2286284 Sample Narrative: L1736040-05 WG2286284: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 16 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 16 of 54 SAMPLE RESULTS - 06 L1736040 SB-6 (2) 17.5-24.5' Collected date/time: 04/30/24 11:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.2 1 05/15/2024 10:56 WG2286509 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 0.0950 T8 0.0498 0.0682 1.25 05/15/2024 03:47 WG2286466 Acrylonitrile U T8 0.00492 0.0170 1.25 05/15/2024 03:47 WG2286466 Benzene 0.00655 T8 0.000637 0.00136 1.25 05/15/2024 03:47 WG2286466 Bromobenzene U T8 0.00123 0.0170 1.25 05/15/2024 03:47 WG2286466 Bromodichloromethane U T8 0.000989 0.00342 1.25 05/15/2024 03:47 WG2286466 Bromoform U T8 0.00159 0.0342 1.25 05/15/2024 03:47 WG2286466 Bromomethane U T8 0.00269 0.0170 1.25 05/15/2024 03:47 WG2286466 n-Butylbenzene U T8 0.00716 0.0170 1.25 05/15/2024 03:47 WG2286466 sec-Butylbenzene U T8 0.00393 0.0170 1.25 05/15/2024 03:47 WG2286466 tert-Butylbenzene U T8 0.00266 0.00682 1.25 05/15/2024 03:47 WG2286466 Carbon tetrachloride U T8 0.00122 0.00682 1.25 05/15/2024 03:47 WG2286466 Chlorobenzene U T8 0.000287 0.00342 1.25 05/15/2024 03:47 WG2286466 Chlorodibromomethane U T8 0.000835 0.00342 1.25 05/15/2024 03:47 WG2286466 Chloroethane U T8 0.00231 0.00682 1.25 05/15/2024 03:47 WG2286466 Chloroform U T8 0.00141 0.00342 1.25 05/15/2024 03:47 WG2286466 Chloromethane U T8 0.00594 0.0170 1.25 05/15/2024 03:47 WG2286466 2-Chlorotoluene U T8 0.00118 0.00342 1.25 05/15/2024 03:47 WG2286466 4-Chlorotoluene U T8 0.000615 0.00682 1.25 05/15/2024 03:47 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00533 0.0342 1.25 05/15/2024 03:47 WG2286466 1,2-Dibromoethane U T8 0.000884 0.00342 1.25 05/15/2024 03:47 WG2286466 Dibromomethane U T8 0.00102 0.00682 1.25 05/15/2024 03:47 WG2286466 1,2-Dichlorobenzene U T8 0.000580 0.00682 1.25 05/15/2024 03:47 WG2286466 1,3-Dichlorobenzene U T8 0.000819 0.00682 1.25 05/15/2024 03:47 WG2286466 1,4-Dichlorobenzene U T8 0.000955 0.00682 1.25 05/15/2024 03:47 WG2286466 Dichlorodifluoromethane U T8 0.00219 0.00682 1.25 05/15/2024 03:47 WG2286466 1,1-Dichloroethane U T8 0.000670 0.00342 1.25 05/15/2024 03:47 WG2286466 1,2-Dichloroethane U T8 0.000885 0.00342 1.25 05/15/2024 03:47 WG2286466 1,1-Dichloroethene U T8 0.000826 0.00342 1.25 05/15/2024 03:47 WG2286466 cis-1,2-Dichloroethene U T8 0.00100 0.00342 1.25 05/15/2024 03:47 WG2286466 trans-1,2-Dichloroethene U T8 0.00142 0.00682 1.25 05/15/2024 03:47 WG2286466 1,2-Dichloropropane U T8 0.00194 0.00682 1.25 05/15/2024 03:47 WG2286466 1,1-Dichloropropene U T8 0.00110 0.00342 1.25 05/15/2024 03:47 WG2286466 1,3-Dichloropropane U T8 0.000683 0.00682 1.25 05/15/2024 03:47 WG2286466 cis-1,3-Dichloropropene U T8 0.00103 0.00342 1.25 05/15/2024 03:47 WG2286466 trans-1,3-Dichloropropene U T8 0.00156 0.00682 1.25 05/15/2024 03:47 WG2286466 2,2-Dichloropropane U T8 0.00189 0.00342 1.25 05/15/2024 03:47 WG2286466 Di-isopropyl ether U T8 0.000560 0.00136 1.25 05/15/2024 03:47 WG2286466 Ethylbenzene 0.00494 T8 0.00101 0.00342 1.25 05/15/2024 03:47 WG2286466 Hexachloro-1,3-butadiene U T8 0.00819 0.0342 1.25 05/15/2024 03:47 WG2286466 Isopropylbenzene U T8 0.000580 0.00342 1.25 05/15/2024 03:47 WG2286466 p-Isopropyltoluene U T8 0.00348 0.00682 1.25 05/15/2024 03:47 WG2286466 2-Butanone (MEK)U T8 0.0867 0.136 1.25 05/15/2024 03:47 WG2286466 Methylene Chloride U T8 0.00906 0.0342 1.25 05/15/2024 03:47 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00311 0.0342 1.25 05/15/2024 03:47 WG2286466 Methyl tert-butyl ether U T8 0.000478 0.00136 1.25 05/15/2024 03:47 WG2286466 Naphthalene U T8 0.00666 0.0170 1.25 05/15/2024 03:47 WG2286466 n-Propylbenzene U T8 0.00130 0.00682 1.25 05/15/2024 03:47 WG2286466 Styrene U T8 0.000312 0.0170 1.25 05/15/2024 03:47 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00130 0.00342 1.25 05/15/2024 03:47 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000949 0.00342 1.25 05/15/2024 03:47 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 17 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 17 of 54 SAMPLE RESULTS - 06 L1736040 SB-6 (2) 17.5-24.5' Collected date/time: 04/30/24 11:18 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 1,1,2-Trichlorotrifluoroethane U T8 0.00103 0.00342 1.25 05/15/2024 03:47 WG2286466 Tetrachloroethene U T8 0.00122 0.00342 1.25 05/15/2024 03:47 WG2286466 Toluene 0.0851 T8 0.00178 0.00682 1.25 05/15/2024 03:47 WG2286466 1,2,3-Trichlorobenzene U T8 0.0100 0.0170 1.25 05/15/2024 03:47 WG2286466 1,2,4-Trichlorobenzene U T8 0.00600 0.0170 1.25 05/15/2024 03:47 WG2286466 1,1,1-Trichloroethane U T8 0.00126 0.00342 1.25 05/15/2024 03:47 WG2286466 1,1,2-Trichloroethane U T8 0.000814 0.00342 1.25 05/15/2024 03:47 WG2286466 Trichloroethene U T8 0.000797 0.00136 1.25 05/15/2024 03:47 WG2286466 Trichlorofluoromethane U T8 0.00112 0.00342 1.25 05/15/2024 03:47 WG2286466 1,2,3-Trichloropropane U T8 0.00220 0.0170 1.25 05/15/2024 03:47 WG2286466 1,2,4-Trimethylbenzene 0.0143 T8 0.00216 0.00682 1.25 05/15/2024 03:47 WG2286466 1,2,3-Trimethylbenzene 0.00648 J J4 T8 0.00216 0.00682 1.25 05/15/2024 03:47 WG2286466 1,3,5-Trimethylbenzene 0.00485 J T8 0.00273 0.00682 1.25 05/15/2024 03:47 WG2286466 Vinyl chloride U T8 0.00158 0.00342 1.25 05/15/2024 03:47 WG2286466 Xylenes, Total 0.0433 T8 0.00120 0.00887 1.25 05/15/2024 03:47 WG2286466 (S) Toluene-d8 110 75.0-131 05/15/2024 03:47 WG2286466 (S) 4-Bromofluorobenzene 101 67.0-138 05/15/2024 03:47 WG2286466 (S) 1,2-Dichloroethane-d4 93.2 70.0-130 05/15/2024 03:47 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00242 0.00631 1 05/15/2024 02:18 WG2286284 Acenaphthene U 0.00220 0.00631 1 05/15/2024 02:18 WG2286284 Acenaphthylene U 0.00227 0.00631 1 05/15/2024 02:18 WG2286284 Benzo(a)anthracene U 0.00182 0.00631 1 05/15/2024 02:18 WG2286284 Benzo(a)pyrene U 0.00188 0.00631 1 05/15/2024 02:18 WG2286284 Benzo(b)fluoranthene U 0.00161 0.00631 1 05/15/2024 02:18 WG2286284 Benzo(g,h,i)perylene U 0.00186 0.00631 1 05/15/2024 02:18 WG2286284 Benzo(k)fluoranthene U 0.00226 0.00631 1 05/15/2024 02:18 WG2286284 Chrysene U 0.00244 0.00631 1 05/15/2024 02:18 WG2286284 Dibenz(a,h)anthracene U 0.00181 0.00631 1 05/15/2024 02:18 WG2286284 Fluoranthene U 0.00239 0.00631 1 05/15/2024 02:18 WG2286284 Fluorene U 0.00215 0.00631 1 05/15/2024 02:18 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00190 0.00631 1 05/15/2024 02:18 WG2286284 Naphthalene U 0.00429 0.0210 1 05/15/2024 02:18 WG2286284 Phenanthrene U 0.00243 0.00631 1 05/15/2024 02:18 WG2286284 Pyrene U 0.00210 0.00631 1 05/15/2024 02:18 WG2286284 1-Methylnaphthalene U 0.00472 0.0210 1 05/15/2024 02:18 WG2286284 2-Methylnaphthalene U 0.00449 0.0210 1 05/15/2024 02:18 WG2286284 2-Chloronaphthalene U 0.00490 0.0210 1 05/15/2024 02:18 WG2286284 (S) p-Terphenyl-d14 76.8 23.0-120 05/15/2024 02:18 WG2286284 (S) Nitrobenzene-d5 59.7 14.0-149 05/15/2024 02:18 WG2286284 (S) 2-Fluorobiphenyl 67.5 34.0-125 05/15/2024 02:18 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 18 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 18 of 54 SAMPLE RESULTS - 07 L1736040 SB-7 (2) 13-17' Collected date/time: 04/30/24 12:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 79.0 1 05/15/2024 10:34 WG2286510 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 T8 0.0592 0.0812 1 05/17/2024 16:34 WG2287760 Acrylonitrile U T8 0.00586 0.0203 1 05/17/2024 16:34 WG2287760 Benzene U T8 0.000758 0.00162 1 05/17/2024 16:34 WG2287760 Bromobenzene U T8 0.00146 0.0203 1 05/17/2024 16:34 WG2287760 Bromodichloromethane U T8 0.00118 0.00406 1 05/17/2024 16:34 WG2287760 Bromoform U T8 0.00190 0.0406 1 05/17/2024 16:34 WG2287760 Bromomethane U T8 0.00320 0.0203 1 05/17/2024 16:34 WG2287760 n-Butylbenzene 0.0291 T8 0.00852 0.0203 1 05/17/2024 16:34 WG2287760 sec-Butylbenzene 0.00834 J T8 0.00467 0.0203 1 05/17/2024 16:34 WG2287760 tert-Butylbenzene U T8 0.00317 0.00812 1 05/17/2024 16:34 WG2287760 Carbon tetrachloride U T8 0.00146 0.00812 1 05/17/2024 16:34 WG2287760 Chlorobenzene U T8 0.000341 0.00406 1 05/17/2024 16:34 WG2287760 Chlorodibromomethane U T8 0.000993 0.00406 1 05/17/2024 16:34 WG2287760 Chloroethane U T8 0.00276 0.00812 1 05/17/2024 16:34 WG2287760 Chloroform U T8 0.00167 0.00406 1 05/17/2024 16:34 WG2287760 Chloromethane U T8 0.00706 0.0203 1 05/17/2024 16:34 WG2287760 2-Chlorotoluene U T8 0.00140 0.00406 1 05/17/2024 16:34 WG2287760 4-Chlorotoluene U T8 0.000730 0.00812 1 05/17/2024 16:34 WG2287760 1,2-Dibromo-3-Chloropropane U T8 0.00633 0.0406 1 05/17/2024 16:34 WG2287760 1,2-Dibromoethane U T8 0.00105 0.00406 1 05/17/2024 16:34 WG2287760 Dibromomethane U T8 0.00122 0.00812 1 05/17/2024 16:34 WG2287760 1,2-Dichlorobenzene U T8 0.000690 0.00812 1 05/17/2024 16:34 WG2287760 1,3-Dichlorobenzene U T8 0.000974 0.00812 1 05/17/2024 16:34 WG2287760 1,4-Dichlorobenzene U T8 0.00114 0.00812 1 05/17/2024 16:34 WG2287760 Dichlorodifluoromethane U T8 0.00261 0.00812 1 05/17/2024 16:34 WG2287760 1,1-Dichloroethane U T8 0.000797 0.00406 1 05/17/2024 16:34 WG2287760 1,2-Dichloroethane U T8 0.00105 0.00406 1 05/17/2024 16:34 WG2287760 1,1-Dichloroethene U T8 0.000984 0.00406 1 05/17/2024 16:34 WG2287760 cis-1,2-Dichloroethene U T8 0.00119 0.00406 1 05/17/2024 16:34 WG2287760 trans-1,2-Dichloroethene U T8 0.00169 0.00812 1 05/17/2024 16:34 WG2287760 1,2-Dichloropropane U T8 0.00230 0.00812 1 05/17/2024 16:34 WG2287760 1,1-Dichloropropene U T8 0.00131 0.00406 1 05/17/2024 16:34 WG2287760 1,3-Dichloropropane U T8 0.000813 0.00812 1 05/17/2024 16:34 WG2287760 cis-1,3-Dichloropropene U T8 0.00123 0.00406 1 05/17/2024 16:34 WG2287760 trans-1,3-Dichloropropene U T8 0.00185 0.00812 1 05/17/2024 16:34 WG2287760 2,2-Dichloropropane U T8 0.00224 0.00406 1 05/17/2024 16:34 WG2287760 Di-isopropyl ether U T8 0.000665 0.00162 1 05/17/2024 16:34 WG2287760 Ethylbenzene 0.00865 T8 0.00120 0.00406 1 05/17/2024 16:34 WG2287760 Hexachloro-1,3-butadiene U T8 0.00974 0.0406 1 05/17/2024 16:34 WG2287760 Isopropylbenzene 0.00523 T8 0.000690 0.00406 1 05/17/2024 16:34 WG2287760 p-Isopropyltoluene 0.0180 T8 0.00414 0.00812 1 05/17/2024 16:34 WG2287760 2-Butanone (MEK)U T8 0.103 0.162 1 05/17/2024 16:34 WG2287760 Methylene Chloride U T8 0.0108 0.0406 1 05/17/2024 16:34 WG2287760 4-Methyl-2-pentanone (MIBK) 0.0180 J T8 0.00370 0.0406 1 05/17/2024 16:34 WG2287760 Methyl tert-butyl ether U T8 0.000568 0.00162 1 05/17/2024 16:34 WG2287760 Naphthalene 0.0414 T8 0.00792 0.0203 1 05/17/2024 16:34 WG2287760 n-Propylbenzene 0.0141 T8 0.00154 0.00812 1 05/17/2024 16:34 WG2287760 Styrene U T8 0.000372 0.0203 1 05/17/2024 16:34 WG2287760 1,1,1,2-Tetrachloroethane U T8 0.00154 0.00406 1 05/17/2024 16:34 WG2287760 1,1,2,2-Tetrachloroethane U T8 0.00113 0.00406 1 05/17/2024 16:34 WG2287760 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 19 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 19 of 54 SAMPLE RESULTS - 07 L1736040 SB-7 (2) 13-17' Collected date/time: 04/30/24 12:15 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 1,1,2-Trichlorotrifluoroethane U T8 0.00122 0.00406 1 05/17/2024 16:34 WG2287760 Tetrachloroethene U T8 0.00145 0.00406 1 05/17/2024 16:34 WG2287760 Toluene 0.0179 T8 0.00211 0.00812 1 05/17/2024 16:34 WG2287760 1,2,3-Trichlorobenzene U T8 0.0119 0.0203 1 05/17/2024 16:34 WG2287760 1,2,4-Trichlorobenzene U T8 0.00714 0.0203 1 05/17/2024 16:34 WG2287760 1,1,1-Trichloroethane U T8 0.00150 0.00406 1 05/17/2024 16:34 WG2287760 1,1,2-Trichloroethane U T8 0.000969 0.00406 1 05/17/2024 16:34 WG2287760 Trichloroethene U T8 0.000948 0.00162 1 05/17/2024 16:34 WG2287760 Trichlorofluoromethane U T8 0.00134 0.00406 1 05/17/2024 16:34 WG2287760 1,2,3-Trichloropropane U T8 0.00263 0.0203 1 05/17/2024 16:34 WG2287760 1,2,4-Trimethylbenzene 0.196 T8 0.00256 0.00812 1 05/17/2024 16:34 WG2287760 1,2,3-Trimethylbenzene 0.0842 T8 0.00256 0.00812 1 05/17/2024 16:34 WG2287760 1,3,5-Trimethylbenzene 0.0601 J4 T8 0.00325 0.00812 1 05/17/2024 16:34 WG2287760 Vinyl chloride U T8 0.00188 0.00406 1 05/17/2024 16:34 WG2287760 Xylenes, Total 0.0685 T8 0.00143 0.0106 1 05/17/2024 16:34 WG2287760 (S) Toluene-d8 110 75.0-131 05/17/2024 16:34 WG2287760 (S) 4-Bromofluorobenzene 107 67.0-138 05/17/2024 16:34 WG2287760 (S) 1,2-Dichloroethane-d4 86.4 70.0-130 05/17/2024 16:34 WG2287760 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00291 0.00760 1 05/15/2024 03:11 WG2286284 Acenaphthene U 0.00265 0.00760 1 05/15/2024 03:11 WG2286284 Acenaphthylene U 0.00273 0.00760 1 05/15/2024 03:11 WG2286284 Benzo(a)anthracene U 0.00219 0.00760 1 05/15/2024 03:11 WG2286284 Benzo(a)pyrene U 0.00227 0.00760 1 05/15/2024 03:11 WG2286284 Benzo(b)fluoranthene U 0.00194 0.00760 1 05/15/2024 03:11 WG2286284 Benzo(g,h,i)perylene U 0.00224 0.00760 1 05/15/2024 03:11 WG2286284 Benzo(k)fluoranthene U 0.00272 0.00760 1 05/15/2024 03:11 WG2286284 Chrysene U 0.00294 0.00760 1 05/15/2024 03:11 WG2286284 Dibenz(a,h)anthracene U 0.00218 0.00760 1 05/15/2024 03:11 WG2286284 Fluoranthene U 0.00287 0.00760 1 05/15/2024 03:11 WG2286284 Fluorene 0.0117 0.00260 0.00760 1 05/15/2024 03:11 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00229 0.00760 1 05/15/2024 03:11 WG2286284 Naphthalene U 0.00517 0.0253 1 05/15/2024 03:11 WG2286284 Phenanthrene 0.0171 0.00292 0.00760 1 05/15/2024 03:11 WG2286284 Pyrene 0.0287 0.00253 0.00760 1 05/15/2024 03:11 WG2286284 1-Methylnaphthalene 0.120 0.00569 0.0253 1 05/15/2024 03:11 WG2286284 2-Methylnaphthalene 0.167 0.00541 0.0253 1 05/15/2024 03:11 WG2286284 2-Chloronaphthalene U 0.00590 0.0253 1 05/15/2024 03:11 WG2286284 (S) p-Terphenyl-d14 109 23.0-120 05/15/2024 03:11 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/15/2024 03:11 WG2286284 (S) 2-Fluorobiphenyl 97.2 34.0-125 05/15/2024 03:11 WG2286284 Sample Narrative: L1736040-07 WG2286284: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 20 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 20 of 54 SAMPLE RESULTS - 08 L1736040 SB-7 (2) 19-21' Collected date/time: 04/30/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.5 1 05/15/2024 10:34 WG2286510 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 T8 0.409 0.561 8 05/15/2024 08:08 WG2286466 Acrylonitrile U T8 0.0405 0.140 8 05/15/2024 08:08 WG2286466 Benzene 0.00541 J T8 0.00524 0.0112 8 05/15/2024 08:08 WG2286466 Bromobenzene U T8 0.0101 0.140 8 05/15/2024 08:08 WG2286466 Bromodichloromethane U T8 0.00813 0.0280 8 05/15/2024 08:08 WG2286466 Bromoform U T8 0.0131 0.280 8 05/15/2024 08:08 WG2286466 Bromomethane U T8 0.0221 0.140 8 05/15/2024 08:08 WG2286466 n-Butylbenzene U T8 0.0589 0.140 8 05/15/2024 08:08 WG2286466 sec-Butylbenzene 0.416 T8 0.0322 0.140 8 05/15/2024 08:08 WG2286466 tert-Butylbenzene U T8 0.0219 0.0561 8 05/15/2024 08:08 WG2286466 Carbon tetrachloride U T8 0.0101 0.0561 8 05/15/2024 08:08 WG2286466 Chlorobenzene U T8 0.00235 0.0280 8 05/15/2024 08:08 WG2286466 Chlorodibromomethane U T8 0.00687 0.0280 8 05/15/2024 08:08 WG2286466 Chloroethane U T8 0.0191 0.0561 8 05/15/2024 08:08 WG2286466 Chloroform U T8 0.0116 0.0280 8 05/15/2024 08:08 WG2286466 Chloromethane U T8 0.0488 0.140 8 05/15/2024 08:08 WG2286466 2-Chlorotoluene U T8 0.00970 0.0280 8 05/15/2024 08:08 WG2286466 4-Chlorotoluene U T8 0.00505 0.0561 8 05/15/2024 08:08 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.0437 0.280 8 05/15/2024 08:08 WG2286466 1,2-Dibromoethane U T8 0.00726 0.0280 8 05/15/2024 08:08 WG2286466 Dibromomethane U T8 0.00841 0.0561 8 05/15/2024 08:08 WG2286466 1,2-Dichlorobenzene U T8 0.00477 0.0561 8 05/15/2024 08:08 WG2286466 1,3-Dichlorobenzene U T8 0.00673 0.0561 8 05/15/2024 08:08 WG2286466 1,4-Dichlorobenzene U T8 0.00785 0.0561 8 05/15/2024 08:08 WG2286466 Dichlorodifluoromethane U T8 0.0181 0.0561 8 05/15/2024 08:08 WG2286466 1,1-Dichloroethane U T8 0.00551 0.0280 8 05/15/2024 08:08 WG2286466 1,2-Dichloroethane U T8 0.00728 0.0280 8 05/15/2024 08:08 WG2286466 1,1-Dichloroethene U T8 0.00680 0.0280 8 05/15/2024 08:08 WG2286466 cis-1,2-Dichloroethene U T8 0.00823 0.0280 8 05/15/2024 08:08 WG2286466 trans-1,2-Dichloroethene U T8 0.0117 0.0561 8 05/15/2024 08:08 WG2286466 1,2-Dichloropropane U T8 0.0160 0.0561 8 05/15/2024 08:08 WG2286466 1,1-Dichloropropene U T8 0.00907 0.0280 8 05/15/2024 08:08 WG2286466 1,3-Dichloropropane U T8 0.00562 0.0561 8 05/15/2024 08:08 WG2286466 cis-1,3-Dichloropropene U T8 0.00849 0.0280 8 05/15/2024 08:08 WG2286466 trans-1,3-Dichloropropene U T8 0.0128 0.0561 8 05/15/2024 08:08 WG2286466 2,2-Dichloropropane U T8 0.0154 0.0280 8 05/15/2024 08:08 WG2286466 Di-isopropyl ether U T8 0.00460 0.0112 8 05/15/2024 08:08 WG2286466 Ethylbenzene 0.313 T8 0.00827 0.0280 8 05/15/2024 08:08 WG2286466 Hexachloro-1,3-butadiene U T8 0.0673 0.280 8 05/15/2024 08:08 WG2286466 Isopropylbenzene U T8 0.00477 0.0280 8 05/15/2024 08:08 WG2286466 p-Isopropyltoluene 0.541 T8 0.0286 0.0561 8 05/15/2024 08:08 WG2286466 2-Butanone (MEK)U T8 0.712 1.12 8 05/15/2024 08:08 WG2286466 Methylene Chloride U T8 0.0744 0.280 8 05/15/2024 08:08 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.0255 0.280 8 05/15/2024 08:08 WG2286466 Methyl tert-butyl ether U T8 0.00392 0.0112 8 05/15/2024 08:08 WG2286466 Naphthalene U T8 0.0547 0.140 8 05/15/2024 08:08 WG2286466 n-Propylbenzene 0.430 T8 0.0107 0.0561 8 05/15/2024 08:08 WG2286466 Styrene U T8 0.00257 0.140 8 05/15/2024 08:08 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.0106 0.0280 8 05/15/2024 08:08 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.00779 0.0280 8 05/15/2024 08:08 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 21 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 21 of 54 SAMPLE RESULTS - 08 L1736040 SB-7 (2) 19-21' Collected date/time: 04/30/24 12:30 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 1,1,2-Trichlorotrifluoroethane U T8 0.00845 0.0280 8 05/15/2024 08:08 WG2286466 Tetrachloroethene U T8 0.0101 0.0280 8 05/15/2024 08:08 WG2286466 Toluene 0.275 T8 0.0146 0.0561 8 05/15/2024 08:08 WG2286466 1,2,3-Trichlorobenzene U T8 0.0821 0.140 8 05/15/2024 08:08 WG2286466 1,2,4-Trichlorobenzene U T8 0.0493 0.140 8 05/15/2024 08:08 WG2286466 1,1,1-Trichloroethane U T8 0.0103 0.0280 8 05/15/2024 08:08 WG2286466 1,1,2-Trichloroethane U T8 0.00670 0.0280 8 05/15/2024 08:08 WG2286466 Trichloroethene U T8 0.00655 0.0112 8 05/15/2024 08:08 WG2286466 Trichlorofluoromethane U T8 0.00928 0.0280 8 05/15/2024 08:08 WG2286466 1,2,3-Trichloropropane U T8 0.0182 0.140 8 05/15/2024 08:08 WG2286466 1,2,4-Trimethylbenzene 6.20 T8 0.0177 0.0561 8 05/15/2024 08:08 WG2286466 1,2,3-Trimethylbenzene 2.89 J4 T8 0.0177 0.0561 8 05/15/2024 08:08 WG2286466 1,3,5-Trimethylbenzene 1.93 T8 0.0224 0.0561 8 05/15/2024 08:08 WG2286466 Vinyl chloride U T8 0.0130 0.0280 8 05/15/2024 08:08 WG2286466 Xylenes, Total 2.79 T8 0.00987 0.0729 8 05/15/2024 08:08 WG2286466 (S) Toluene-d8 114 75.0-131 05/15/2024 08:08 WG2286466 (S) 4-Bromofluorobenzene 119 67.0-138 05/15/2024 08:08 WG2286466 (S) 1,2-Dichloroethane-d4 93.8 70.0-130 05/15/2024 08:08 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00272 0.00710 1 05/15/2024 03:29 WG2286284 Acenaphthene 0.342 0.0495 0.142 20 05/16/2024 00:19 WG2286284 Acenaphthylene U 0.0511 0.142 20 05/16/2024 00:19 WG2286284 Benzo(a)anthracene U 0.00205 0.00710 1 05/15/2024 03:29 WG2286284 Benzo(a)pyrene U 0.00212 0.00710 1 05/15/2024 03:29 WG2286284 Benzo(b)fluoranthene U 0.00181 0.00710 1 05/15/2024 03:29 WG2286284 Benzo(g,h,i)perylene U 0.00209 0.00710 1 05/15/2024 03:29 WG2286284 Benzo(k)fluoranthene U 0.00254 0.00710 1 05/15/2024 03:29 WG2286284 Chrysene U 0.00275 0.00710 1 05/15/2024 03:29 WG2286284 Dibenz(a,h)anthracene U 0.00204 0.00710 1 05/15/2024 03:29 WG2286284 Fluoranthene U 0.00269 0.00710 1 05/15/2024 03:29 WG2286284 Fluorene 0.547 0.0485 0.142 20 05/16/2024 00:19 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00214 0.00710 1 05/15/2024 03:29 WG2286284 Naphthalene U 0.00483 0.0237 1 05/15/2024 03:29 WG2286284 Phenanthrene 0.583 0.00273 0.00710 1 05/15/2024 03:29 WG2286284 Pyrene 1.34 0.00237 0.00710 1 05/15/2024 03:29 WG2286284 1-Methylnaphthalene 2.69 0.00531 0.0237 1 05/15/2024 03:29 WG2286284 2-Methylnaphthalene 3.90 0.00505 0.0237 1 05/15/2024 03:29 WG2286284 2-Chloronaphthalene U 0.110 0.473 20 05/16/2024 00:19 WG2286284 (S) p-Terphenyl-d14 101 23.0-120 05/15/2024 03:29 WG2286284 (S) p-Terphenyl-d14 113 J7 23.0-120 05/16/2024 00:19 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/15/2024 03:29 WG2286284 (S) Nitrobenzene-d5 0.000 J7 14.0-149 05/16/2024 00:19 WG2286284 (S) 2-Fluorobiphenyl 53.5 34.0-125 05/15/2024 03:29 WG2286284 (S) 2-Fluorobiphenyl 122 J7 34.0-125 05/16/2024 00:19 WG2286284 Sample Narrative: L1736040-08 WG2286284: Surrogate failure due to matrix interference L1736040-08 WG2286284: Dilution and surrogate failure due to matrix interference. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 22 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 22 of 54 SAMPLE RESULTS - 09 L1736040 SB-10 (2) 14-17' Collected date/time: 04/30/24 13:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.6 1 05/15/2024 10:34 WG2286510 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 T8 0.846 1.16 20 05/15/2024 08:28 WG2286466 Acrylonitrile U T8 0.0837 0.290 20 05/15/2024 08:28 WG2286466 Benzene 0.0846 T8 0.0108 0.0232 20 05/15/2024 08:28 WG2286466 Bromobenzene U T8 0.0209 0.290 20 05/15/2024 08:28 WG2286466 Bromodichloromethane U T8 0.0168 0.0580 20 05/15/2024 08:28 WG2286466 Bromoform U T8 0.0271 0.580 20 05/15/2024 08:28 WG2286466 Bromomethane U T8 0.0457 0.290 20 05/15/2024 08:28 WG2286466 n-Butylbenzene U T8 0.122 0.290 20 05/15/2024 08:28 WG2286466 sec-Butylbenzene 2.83 T8 0.0668 0.290 20 05/15/2024 08:28 WG2286466 tert-Butylbenzene U T8 0.0452 0.116 20 05/15/2024 08:28 WG2286466 Carbon tetrachloride U T8 0.0209 0.116 20 05/15/2024 08:28 WG2286466 Chlorobenzene U T8 0.00487 0.0580 20 05/15/2024 08:28 WG2286466 Chlorodibromomethane U T8 0.0141 0.0580 20 05/15/2024 08:28 WG2286466 Chloroethane U T8 0.0394 0.116 20 05/15/2024 08:28 WG2286466 Chloroform U T8 0.0239 0.0580 20 05/15/2024 08:28 WG2286466 Chloromethane U T8 0.101 0.290 20 05/15/2024 08:28 WG2286466 2-Chlorotoluene U T8 0.0201 0.0580 20 05/15/2024 08:28 WG2286466 4-Chlorotoluene U T8 0.0104 0.116 20 05/15/2024 08:28 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.0904 0.580 20 05/15/2024 08:28 WG2286466 1,2-Dibromoethane U T8 0.0151 0.0580 20 05/15/2024 08:28 WG2286466 Dibromomethane U T8 0.0174 0.116 20 05/15/2024 08:28 WG2286466 1,2-Dichlorobenzene U T8 0.00985 0.116 20 05/15/2024 08:28 WG2286466 1,3-Dichlorobenzene U T8 0.0139 0.116 20 05/15/2024 08:28 WG2286466 1,4-Dichlorobenzene U T8 0.0162 0.116 20 05/15/2024 08:28 WG2286466 Dichlorodifluoromethane U T8 0.0373 0.116 20 05/15/2024 08:28 WG2286466 1,1-Dichloroethane U T8 0.0114 0.0580 20 05/15/2024 08:28 WG2286466 1,2-Dichloroethane U T8 0.0151 0.0580 20 05/15/2024 08:28 WG2286466 1,1-Dichloroethene U T8 0.0140 0.0580 20 05/15/2024 08:28 WG2286466 cis-1,2-Dichloroethene U T8 0.0170 0.0580 20 05/15/2024 08:28 WG2286466 trans-1,2-Dichloroethene U T8 0.0241 0.116 20 05/15/2024 08:28 WG2286466 1,2-Dichloropropane U T8 0.0329 0.116 20 05/15/2024 08:28 WG2286466 1,1-Dichloropropene U T8 0.0188 0.0580 20 05/15/2024 08:28 WG2286466 1,3-Dichloropropane U T8 0.0116 0.116 20 05/15/2024 08:28 WG2286466 cis-1,3-Dichloropropene U T8 0.0175 0.0580 20 05/15/2024 08:28 WG2286466 trans-1,3-Dichloropropene U T8 0.0264 0.116 20 05/15/2024 08:28 WG2286466 2,2-Dichloropropane U T8 0.0320 0.0580 20 05/15/2024 08:28 WG2286466 Di-isopropyl ether U T8 0.00951 0.0232 20 05/15/2024 08:28 WG2286466 Ethylbenzene 6.25 T8 0.0170 0.0580 20 05/15/2024 08:28 WG2286466 Hexachloro-1,3-butadiene U T8 0.139 0.580 20 05/15/2024 08:28 WG2286466 Isopropylbenzene 2.01 T8 0.00985 0.0580 20 05/15/2024 08:28 WG2286466 p-Isopropyltoluene 2.46 T8 0.0591 0.116 20 05/15/2024 08:28 WG2286466 2-Butanone (MEK)U T8 1.47 2.32 20 05/15/2024 08:28 WG2286466 Methylene Chloride U T8 0.154 0.580 20 05/15/2024 08:28 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.0529 0.580 20 05/15/2024 08:28 WG2286466 Methyl tert-butyl ether U T8 0.00811 0.0232 20 05/15/2024 08:28 WG2286466 Naphthalene U T8 0.113 0.290 20 05/15/2024 08:28 WG2286466 n-Propylbenzene 6.22 T8 0.0220 0.116 20 05/15/2024 08:28 WG2286466 Styrene U T8 0.00531 0.290 20 05/15/2024 08:28 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.0220 0.0580 20 05/15/2024 08:28 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.0161 0.0580 20 05/15/2024 08:28 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 23 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 23 of 54 SAMPLE RESULTS - 09 L1736040 SB-10 (2) 14-17' Collected date/time: 04/30/24 13:23 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 1,1,2-Trichlorotrifluoroethane U T8 0.0175 0.0580 20 05/15/2024 08:28 WG2286466 Tetrachloroethene U T8 0.0207 0.0580 20 05/15/2024 08:28 WG2286466 Toluene 8.07 T8 0.0301 0.116 20 05/15/2024 08:28 WG2286466 1,2,3-Trichlorobenzene U T8 0.170 0.290 20 05/15/2024 08:28 WG2286466 1,2,4-Trichlorobenzene U T8 0.102 0.290 20 05/15/2024 08:28 WG2286466 1,1,1-Trichloroethane U T8 0.0214 0.0580 20 05/15/2024 08:28 WG2286466 1,1,2-Trichloroethane U T8 0.0138 0.0580 20 05/15/2024 08:28 WG2286466 Trichloroethene U T8 0.0136 0.0232 20 05/15/2024 08:28 WG2286466 Trichlorofluoromethane U T8 0.0191 0.0580 20 05/15/2024 08:28 WG2286466 1,2,3-Trichloropropane U T8 0.0376 0.290 20 05/15/2024 08:28 WG2286466 1,2,4-Trimethylbenzene 30.3 T8 0.0366 0.116 20 05/15/2024 08:28 WG2286466 1,2,3-Trimethylbenzene 12.8 J4 T8 0.0366 0.116 20 05/15/2024 08:28 WG2286466 1,3,5-Trimethylbenzene 9.08 T8 0.0464 0.116 20 05/15/2024 08:28 WG2286466 Vinyl chloride U T8 0.0269 0.0580 20 05/15/2024 08:28 WG2286466 Xylenes, Total 41.8 T8 0.0204 0.151 20 05/15/2024 08:28 WG2286466 (S) Toluene-d8 118 75.0-131 05/15/2024 08:28 WG2286466 (S) 4-Bromofluorobenzene 141 67.0-138 05/15/2024 08:28 WG2286466 (S) 1,2-Dichloroethane-d4 91.4 70.0-130 05/15/2024 08:28 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00246 0.00641 1 05/15/2024 03:46 WG2286284 Acenaphthene 0.583 0.0223 0.0641 10 05/16/2024 00:39 WG2286284 Acenaphthylene U 0.0231 0.0641 10 05/16/2024 00:39 WG2286284 Benzo(a)anthracene U 0.00185 0.00641 1 05/15/2024 03:46 WG2286284 Benzo(a)pyrene U 0.00191 0.00641 1 05/15/2024 03:46 WG2286284 Benzo(b)fluoranthene U 0.00164 0.00641 1 05/15/2024 03:46 WG2286284 Benzo(g,h,i)perylene U 0.00189 0.00641 1 05/15/2024 03:46 WG2286284 Benzo(k)fluoranthene U 0.00230 0.00641 1 05/15/2024 03:46 WG2286284 Chrysene U 0.00248 0.00641 1 05/15/2024 03:46 WG2286284 Dibenz(a,h)anthracene U 0.00184 0.00641 1 05/15/2024 03:46 WG2286284 Fluoranthene U 0.00243 0.00641 1 05/15/2024 03:46 WG2286284 Fluorene 0.631 0.0219 0.0641 10 05/16/2024 00:39 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00193 0.00641 1 05/15/2024 03:46 WG2286284 Naphthalene U 0.00436 0.0214 1 05/15/2024 03:46 WG2286284 Phenanthrene 0.282 0.00247 0.00641 1 05/15/2024 03:46 WG2286284 Pyrene 0.596 0.00214 0.00641 1 05/15/2024 03:46 WG2286284 1-Methylnaphthalene 3.89 0.00480 0.0214 1 05/15/2024 03:46 WG2286284 2-Methylnaphthalene 5.91 0.0456 0.214 10 05/16/2024 00:39 WG2286284 2-Chloronaphthalene U 0.0498 0.214 10 05/16/2024 00:39 WG2286284 (S) p-Terphenyl-d14 104 23.0-120 05/16/2024 00:39 WG2286284 (S) p-Terphenyl-d14 93.1 23.0-120 05/15/2024 03:46 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/15/2024 03:46 WG2286284 (S) Nitrobenzene-d5 0.000 J2 14.0-149 05/16/2024 00:39 WG2286284 (S) 2-Fluorobiphenyl 19.9 J2 34.0-125 05/15/2024 03:46 WG2286284 (S) 2-Fluorobiphenyl 102 34.0-125 05/16/2024 00:39 WG2286284 Sample Narrative: L1736040-09 WG2286284: Surrogate failure due to matrix interference L1736040-09 WG2286284: Dilution and surrogate failure due to matrix interference. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 24 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 24 of 54 SAMPLE RESULTS - 10 L1736040 SB-10 (2) 17-23' Collected date/time: 04/30/24 13:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 78.6 1 05/15/2024 10:34 WG2286510 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 T8 0.0564 0.0772 1 05/15/2024 04:07 WG2286466 Acrylonitrile U T8 0.00557 0.0193 1 05/15/2024 04:07 WG2286466 Benzene U T8 0.000721 0.00154 1 05/15/2024 04:07 WG2286466 Bromobenzene U T8 0.00139 0.0193 1 05/15/2024 04:07 WG2286466 Bromodichloromethane U T8 0.00112 0.00386 1 05/15/2024 04:07 WG2286466 Bromoform U T8 0.00181 0.0386 1 05/15/2024 04:07 WG2286466 Bromomethane U T8 0.00304 0.0193 1 05/15/2024 04:07 WG2286466 n-Butylbenzene U T8 0.00811 0.0193 1 05/15/2024 04:07 WG2286466 sec-Butylbenzene U T8 0.00445 0.0193 1 05/15/2024 04:07 WG2286466 tert-Butylbenzene U T8 0.00301 0.00772 1 05/15/2024 04:07 WG2286466 Carbon tetrachloride U T8 0.00139 0.00772 1 05/15/2024 04:07 WG2286466 Chlorobenzene U T8 0.000324 0.00386 1 05/15/2024 04:07 WG2286466 Chlorodibromomethane U T8 0.000945 0.00386 1 05/15/2024 04:07 WG2286466 Chloroethane U T8 0.00263 0.00772 1 05/15/2024 04:07 WG2286466 Chloroform U T8 0.00159 0.00386 1 05/15/2024 04:07 WG2286466 Chloromethane U T8 0.00672 0.0193 1 05/15/2024 04:07 WG2286466 2-Chlorotoluene U T8 0.00134 0.00386 1 05/15/2024 04:07 WG2286466 4-Chlorotoluene U T8 0.000695 0.00772 1 05/15/2024 04:07 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00602 0.0386 1 05/15/2024 04:07 WG2286466 1,2-Dibromoethane U T8 0.00100 0.00386 1 05/15/2024 04:07 WG2286466 Dibromomethane U T8 0.00116 0.00772 1 05/15/2024 04:07 WG2286466 1,2-Dichlorobenzene U T8 0.000656 0.00772 1 05/15/2024 04:07 WG2286466 1,3-Dichlorobenzene U T8 0.000927 0.00772 1 05/15/2024 04:07 WG2286466 1,4-Dichlorobenzene U T8 0.00108 0.00772 1 05/15/2024 04:07 WG2286466 Dichlorodifluoromethane U T8 0.00249 0.00772 1 05/15/2024 04:07 WG2286466 1,1-Dichloroethane U T8 0.000758 0.00386 1 05/15/2024 04:07 WG2286466 1,2-Dichloroethane U T8 0.00100 0.00386 1 05/15/2024 04:07 WG2286466 1,1-Dichloroethene U T8 0.000936 0.00386 1 05/15/2024 04:07 WG2286466 cis-1,2-Dichloroethene U T8 0.00113 0.00386 1 05/15/2024 04:07 WG2286466 trans-1,2-Dichloroethene U T8 0.00161 0.00772 1 05/15/2024 04:07 WG2286466 1,2-Dichloropropane U T8 0.00219 0.00772 1 05/15/2024 04:07 WG2286466 1,1-Dichloropropene U T8 0.00125 0.00386 1 05/15/2024 04:07 WG2286466 1,3-Dichloropropane U T8 0.000774 0.00772 1 05/15/2024 04:07 WG2286466 cis-1,3-Dichloropropene U T8 0.00117 0.00386 1 05/15/2024 04:07 WG2286466 trans-1,3-Dichloropropene U T8 0.00176 0.00772 1 05/15/2024 04:07 WG2286466 2,2-Dichloropropane U T8 0.00213 0.00386 1 05/15/2024 04:07 WG2286466 Di-isopropyl ether U T8 0.000633 0.00154 1 05/15/2024 04:07 WG2286466 Ethylbenzene U T8 0.00114 0.00386 1 05/15/2024 04:07 WG2286466 Hexachloro-1,3-butadiene U T8 0.00927 0.0386 1 05/15/2024 04:07 WG2286466 Isopropylbenzene U T8 0.000656 0.00386 1 05/15/2024 04:07 WG2286466 p-Isopropyltoluene U T8 0.00394 0.00772 1 05/15/2024 04:07 WG2286466 2-Butanone (MEK)U T8 0.0981 0.154 1 05/15/2024 04:07 WG2286466 Methylene Chloride U T8 0.0103 0.0386 1 05/15/2024 04:07 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00352 0.0386 1 05/15/2024 04:07 WG2286466 Methyl tert-butyl ether U T8 0.000541 0.00154 1 05/15/2024 04:07 WG2286466 Naphthalene U T8 0.00754 0.0193 1 05/15/2024 04:07 WG2286466 n-Propylbenzene U T8 0.00147 0.00772 1 05/15/2024 04:07 WG2286466 Styrene U T8 0.000354 0.0193 1 05/15/2024 04:07 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00146 0.00386 1 05/15/2024 04:07 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.00107 0.00386 1 05/15/2024 04:07 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 25 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 25 of 54 SAMPLE RESULTS - 10 L1736040 SB-10 (2) 17-23' Collected date/time: 04/30/24 13:22 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 1,1,2-Trichlorotrifluoroethane U T8 0.00116 0.00386 1 05/15/2024 04:07 WG2286466 Tetrachloroethene U T8 0.00138 0.00386 1 05/15/2024 04:07 WG2286466 Toluene 0.00664 J T8 0.00201 0.00772 1 05/15/2024 04:07 WG2286466 1,2,3-Trichlorobenzene U T8 0.0113 0.0193 1 05/15/2024 04:07 WG2286466 1,2,4-Trichlorobenzene U T8 0.00679 0.0193 1 05/15/2024 04:07 WG2286466 1,1,1-Trichloroethane U T8 0.00143 0.00386 1 05/15/2024 04:07 WG2286466 1,1,2-Trichloroethane U T8 0.000922 0.00386 1 05/15/2024 04:07 WG2286466 Trichloroethene U T8 0.000902 0.00154 1 05/15/2024 04:07 WG2286466 Trichlorofluoromethane U T8 0.00128 0.00386 1 05/15/2024 04:07 WG2286466 1,2,3-Trichloropropane U T8 0.00250 0.0193 1 05/15/2024 04:07 WG2286466 1,2,4-Trimethylbenzene 0.0130 T8 0.00244 0.00772 1 05/15/2024 04:07 WG2286466 1,2,3-Trimethylbenzene 0.00757 J J4 T8 0.00244 0.00772 1 05/15/2024 04:07 WG2286466 1,3,5-Trimethylbenzene 0.00530 J T8 0.00309 0.00772 1 05/15/2024 04:07 WG2286466 Vinyl chloride U T8 0.00179 0.00386 1 05/15/2024 04:07 WG2286466 Xylenes, Total U T8 0.00136 0.0100 1 05/15/2024 04:07 WG2286466 (S) Toluene-d8 110 75.0-131 05/15/2024 04:07 WG2286466 (S) 4-Bromofluorobenzene 102 67.0-138 05/15/2024 04:07 WG2286466 (S) 1,2-Dichloroethane-d4 90.1 70.0-130 05/15/2024 04:07 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00292 0.00763 1 05/15/2024 04:04 WG2286284 Acenaphthene U 0.00266 0.00763 1 05/15/2024 04:04 WG2286284 Acenaphthylene U 0.00275 0.00763 1 05/15/2024 04:04 WG2286284 Benzo(a)anthracene U 0.00220 0.00763 1 05/15/2024 04:04 WG2286284 Benzo(a)pyrene U 0.00228 0.00763 1 05/15/2024 04:04 WG2286284 Benzo(b)fluoranthene U 0.00195 0.00763 1 05/15/2024 04:04 WG2286284 Benzo(g,h,i)perylene U 0.00225 0.00763 1 05/15/2024 04:04 WG2286284 Benzo(k)fluoranthene U 0.00273 0.00763 1 05/15/2024 04:04 WG2286284 Chrysene U 0.00295 0.00763 1 05/15/2024 04:04 WG2286284 Dibenz(a,h)anthracene U 0.00219 0.00763 1 05/15/2024 04:04 WG2286284 Fluoranthene U 0.00289 0.00763 1 05/15/2024 04:04 WG2286284 Fluorene U 0.00261 0.00763 1 05/15/2024 04:04 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00230 0.00763 1 05/15/2024 04:04 WG2286284 Naphthalene U 0.00519 0.0254 1 05/15/2024 04:04 WG2286284 Phenanthrene U 0.00294 0.00763 1 05/15/2024 04:04 WG2286284 Pyrene U 0.00254 0.00763 1 05/15/2024 04:04 WG2286284 1-Methylnaphthalene U 0.00571 0.0254 1 05/15/2024 04:04 WG2286284 2-Methylnaphthalene U 0.00543 0.0254 1 05/15/2024 04:04 WG2286284 2-Chloronaphthalene U 0.00593 0.0254 1 05/15/2024 04:04 WG2286284 (S) p-Terphenyl-d14 115 23.0-120 05/15/2024 04:04 WG2286284 (S) Nitrobenzene-d5 94.6 14.0-149 05/15/2024 04:04 WG2286284 (S) 2-Fluorobiphenyl 100 34.0-125 05/15/2024 04:04 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 26 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 26 of 54 SAMPLE RESULTS - 11 L1736040 SB-1 (2) 25-30' Collected date/time: 04/30/24 14:24 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 05/15/2024 10:34 WG2286510 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 0.0471 J T8 0.0423 0.0580 1 05/15/2024 04:27 WG2286466 Acrylonitrile U T8 0.00419 0.0145 1 05/15/2024 04:27 WG2286466 Benzene 0.000773 J T8 0.000542 0.00116 1 05/15/2024 04:27 WG2286466 Bromobenzene U T8 0.00104 0.0145 1 05/15/2024 04:27 WG2286466 Bromodichloromethane U T8 0.000841 0.00290 1 05/15/2024 04:27 WG2286466 Bromoform U T8 0.00136 0.0290 1 05/15/2024 04:27 WG2286466 Bromomethane U T8 0.00228 0.0145 1 05/15/2024 04:27 WG2286466 n-Butylbenzene U T8 0.00609 0.0145 1 05/15/2024 04:27 WG2286466 sec-Butylbenzene U T8 0.00334 0.0145 1 05/15/2024 04:27 WG2286466 tert-Butylbenzene U T8 0.00226 0.00580 1 05/15/2024 04:27 WG2286466 Carbon tetrachloride U T8 0.00104 0.00580 1 05/15/2024 04:27 WG2286466 Chlorobenzene U T8 0.000244 0.00290 1 05/15/2024 04:27 WG2286466 Chlorodibromomethane U T8 0.000710 0.00290 1 05/15/2024 04:27 WG2286466 Chloroethane U T8 0.00197 0.00580 1 05/15/2024 04:27 WG2286466 Chloroform U T8 0.00119 0.00290 1 05/15/2024 04:27 WG2286466 Chloromethane U T8 0.00504 0.0145 1 05/15/2024 04:27 WG2286466 2-Chlorotoluene U T8 0.00100 0.00290 1 05/15/2024 04:27 WG2286466 4-Chlorotoluene U T8 0.000522 0.00580 1 05/15/2024 04:27 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00452 0.0290 1 05/15/2024 04:27 WG2286466 1,2-Dibromoethane U T8 0.000751 0.00290 1 05/15/2024 04:27 WG2286466 Dibromomethane U T8 0.000870 0.00580 1 05/15/2024 04:27 WG2286466 1,2-Dichlorobenzene U T8 0.000493 0.00580 1 05/15/2024 04:27 WG2286466 1,3-Dichlorobenzene U T8 0.000696 0.00580 1 05/15/2024 04:27 WG2286466 1,4-Dichlorobenzene U T8 0.000812 0.00580 1 05/15/2024 04:27 WG2286466 Dichlorodifluoromethane U T8 0.00187 0.00580 1 05/15/2024 04:27 WG2286466 1,1-Dichloroethane U T8 0.000569 0.00290 1 05/15/2024 04:27 WG2286466 1,2-Dichloroethane U T8 0.000753 0.00290 1 05/15/2024 04:27 WG2286466 1,1-Dichloroethene U T8 0.000703 0.00290 1 05/15/2024 04:27 WG2286466 cis-1,2-Dichloroethene U T8 0.000851 0.00290 1 05/15/2024 04:27 WG2286466 trans-1,2-Dichloroethene U T8 0.00121 0.00580 1 05/15/2024 04:27 WG2286466 1,2-Dichloropropane U T8 0.00165 0.00580 1 05/15/2024 04:27 WG2286466 1,1-Dichloropropene U T8 0.000938 0.00290 1 05/15/2024 04:27 WG2286466 1,3-Dichloropropane U T8 0.000581 0.00580 1 05/15/2024 04:27 WG2286466 cis-1,3-Dichloropropene U T8 0.000878 0.00290 1 05/15/2024 04:27 WG2286466 trans-1,3-Dichloropropene U T8 0.00132 0.00580 1 05/15/2024 04:27 WG2286466 2,2-Dichloropropane U T8 0.00160 0.00290 1 05/15/2024 04:27 WG2286466 Di-isopropyl ether U T8 0.000475 0.00116 1 05/15/2024 04:27 WG2286466 Ethylbenzene 0.00334 T8 0.000855 0.00290 1 05/15/2024 04:27 WG2286466 Hexachloro-1,3-butadiene U T8 0.00696 0.0290 1 05/15/2024 04:27 WG2286466 Isopropylbenzene U T8 0.000493 0.00290 1 05/15/2024 04:27 WG2286466 p-Isopropyltoluene U T8 0.00296 0.00580 1 05/15/2024 04:27 WG2286466 2-Butanone (MEK)U T8 0.0736 0.116 1 05/15/2024 04:27 WG2286466 Methylene Chloride U T8 0.00770 0.0290 1 05/15/2024 04:27 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00264 0.0290 1 05/15/2024 04:27 WG2286466 Methyl tert-butyl ether U T8 0.000406 0.00116 1 05/15/2024 04:27 WG2286466 Naphthalene U T8 0.00566 0.0145 1 05/15/2024 04:27 WG2286466 n-Propylbenzene U T8 0.00110 0.00580 1 05/15/2024 04:27 WG2286466 Styrene U T8 0.000266 0.0145 1 05/15/2024 04:27 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00110 0.00290 1 05/15/2024 04:27 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000806 0.00290 1 05/15/2024 04:27 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 27 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 27 of 54 SAMPLE RESULTS - 11 L1736040 SB-1 (2) 25-30' Collected date/time: 04/30/24 14:24 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 1,1,2-Trichlorotrifluoroethane U T8 0.000874 0.00290 1 05/15/2024 04:27 WG2286466 Tetrachloroethene U T8 0.00104 0.00290 1 05/15/2024 04:27 WG2286466 Toluene 0.0354 T8 0.00151 0.00580 1 05/15/2024 04:27 WG2286466 1,2,3-Trichlorobenzene U T8 0.00850 0.0145 1 05/15/2024 04:27 WG2286466 1,2,4-Trichlorobenzene U T8 0.00510 0.0145 1 05/15/2024 04:27 WG2286466 1,1,1-Trichloroethane U T8 0.00107 0.00290 1 05/15/2024 04:27 WG2286466 1,1,2-Trichloroethane U T8 0.000692 0.00290 1 05/15/2024 04:27 WG2286466 Trichloroethene U T8 0.000677 0.00116 1 05/15/2024 04:27 WG2286466 Trichlorofluoromethane U T8 0.000959 0.00290 1 05/15/2024 04:27 WG2286466 1,2,3-Trichloropropane U T8 0.00188 0.0145 1 05/15/2024 04:27 WG2286466 1,2,4-Trimethylbenzene 0.00982 T8 0.00183 0.00580 1 05/15/2024 04:27 WG2286466 1,2,3-Trimethylbenzene 0.00262 J J4 T8 0.00183 0.00580 1 05/15/2024 04:27 WG2286466 1,3,5-Trimethylbenzene 0.00474 J T8 0.00232 0.00580 1 05/15/2024 04:27 WG2286466 Vinyl chloride U T8 0.00135 0.00290 1 05/15/2024 04:27 WG2286466 Xylenes, Total 0.0315 T8 0.00102 0.00754 1 05/15/2024 04:27 WG2286466 (S) Toluene-d8 112 75.0-131 05/15/2024 04:27 WG2286466 (S) 4-Bromofluorobenzene 101 67.0-138 05/15/2024 04:27 WG2286466 (S) 1,2-Dichloroethane-d4 90.2 70.0-130 05/15/2024 04:27 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00247 0.00644 1 05/15/2024 04:22 WG2286284 Acenaphthene U 0.00224 0.00644 1 05/15/2024 04:22 WG2286284 Acenaphthylene U 0.00232 0.00644 1 05/15/2024 04:22 WG2286284 Benzo(a)anthracene U 0.00186 0.00644 1 05/15/2024 04:22 WG2286284 Benzo(a)pyrene U 0.00192 0.00644 1 05/15/2024 04:22 WG2286284 Benzo(b)fluoranthene U 0.00164 0.00644 1 05/15/2024 04:22 WG2286284 Benzo(g,h,i)perylene U 0.00190 0.00644 1 05/15/2024 04:22 WG2286284 Benzo(k)fluoranthene U 0.00231 0.00644 1 05/15/2024 04:22 WG2286284 Chrysene U 0.00249 0.00644 1 05/15/2024 04:22 WG2286284 Dibenz(a,h)anthracene U 0.00185 0.00644 1 05/15/2024 04:22 WG2286284 Fluoranthene U 0.00244 0.00644 1 05/15/2024 04:22 WG2286284 Fluorene U 0.00220 0.00644 1 05/15/2024 04:22 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00194 0.00644 1 05/15/2024 04:22 WG2286284 Naphthalene U 0.00438 0.0215 1 05/15/2024 04:22 WG2286284 Phenanthrene U 0.00248 0.00644 1 05/15/2024 04:22 WG2286284 Pyrene U 0.00215 0.00644 1 05/15/2024 04:22 WG2286284 1-Methylnaphthalene U 0.00482 0.0215 1 05/15/2024 04:22 WG2286284 2-Methylnaphthalene U 0.00458 0.0215 1 05/15/2024 04:22 WG2286284 2-Chloronaphthalene U 0.00500 0.0215 1 05/15/2024 04:22 WG2286284 (S) p-Terphenyl-d14 61.6 23.0-120 05/15/2024 04:22 WG2286284 (S) Nitrobenzene-d5 55.2 14.0-149 05/15/2024 04:22 WG2286284 (S) 2-Fluorobiphenyl 62.2 34.0-125 05/15/2024 04:22 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 28 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 28 of 54 SAMPLE RESULTS - 12 L1736040 SB-3 (2) 25-30' Collected date/time: 04/30/24 15:02 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.4 1 05/15/2024 10:34 WG2286510 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 T8 0.0521 0.0714 1 05/15/2024 04:47 WG2286466 Acrylonitrile U T8 0.00515 0.0178 1 05/15/2024 04:47 WG2286466 Benzene U T8 0.000667 0.00143 1 05/15/2024 04:47 WG2286466 Bromobenzene U T8 0.00128 0.0178 1 05/15/2024 04:47 WG2286466 Bromodichloromethane U T8 0.00103 0.00357 1 05/15/2024 04:47 WG2286466 Bromoform U T8 0.00167 0.0357 1 05/15/2024 04:47 WG2286466 Bromomethane U T8 0.00281 0.0178 1 05/15/2024 04:47 WG2286466 n-Butylbenzene U T8 0.00749 0.0178 1 05/15/2024 04:47 WG2286466 sec-Butylbenzene U T8 0.00411 0.0178 1 05/15/2024 04:47 WG2286466 tert-Butylbenzene U T8 0.00278 0.00714 1 05/15/2024 04:47 WG2286466 Carbon tetrachloride U T8 0.00128 0.00714 1 05/15/2024 04:47 WG2286466 Chlorobenzene U T8 0.000300 0.00357 1 05/15/2024 04:47 WG2286466 Chlorodibromomethane U T8 0.000874 0.00357 1 05/15/2024 04:47 WG2286466 Chloroethane U T8 0.00243 0.00714 1 05/15/2024 04:47 WG2286466 Chloroform U T8 0.00147 0.00357 1 05/15/2024 04:47 WG2286466 Chloromethane U T8 0.00621 0.0178 1 05/15/2024 04:47 WG2286466 2-Chlorotoluene U T8 0.00123 0.00357 1 05/15/2024 04:47 WG2286466 4-Chlorotoluene U T8 0.000642 0.00714 1 05/15/2024 04:47 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00557 0.0357 1 05/15/2024 04:47 WG2286466 1,2-Dibromoethane U T8 0.000925 0.00357 1 05/15/2024 04:47 WG2286466 Dibromomethane U T8 0.00107 0.00714 1 05/15/2024 04:47 WG2286466 1,2-Dichlorobenzene U T8 0.000607 0.00714 1 05/15/2024 04:47 WG2286466 1,3-Dichlorobenzene U T8 0.000856 0.00714 1 05/15/2024 04:47 WG2286466 1,4-Dichlorobenzene U T8 0.000999 0.00714 1 05/15/2024 04:47 WG2286466 Dichlorodifluoromethane U T8 0.00230 0.00714 1 05/15/2024 04:47 WG2286466 1,1-Dichloroethane U T8 0.000701 0.00357 1 05/15/2024 04:47 WG2286466 1,2-Dichloroethane U T8 0.000926 0.00357 1 05/15/2024 04:47 WG2286466 1,1-Dichloroethene U T8 0.000865 0.00357 1 05/15/2024 04:47 WG2286466 cis-1,2-Dichloroethene U T8 0.00105 0.00357 1 05/15/2024 04:47 WG2286466 trans-1,2-Dichloroethene U T8 0.00148 0.00714 1 05/15/2024 04:47 WG2286466 1,2-Dichloropropane U T8 0.00203 0.00714 1 05/15/2024 04:47 WG2286466 1,1-Dichloropropene U T8 0.00115 0.00357 1 05/15/2024 04:47 WG2286466 1,3-Dichloropropane U T8 0.000715 0.00714 1 05/15/2024 04:47 WG2286466 cis-1,3-Dichloropropene U T8 0.00108 0.00357 1 05/15/2024 04:47 WG2286466 trans-1,3-Dichloropropene U T8 0.00163 0.00714 1 05/15/2024 04:47 WG2286466 2,2-Dichloropropane U T8 0.00197 0.00357 1 05/15/2024 04:47 WG2286466 Di-isopropyl ether U T8 0.000585 0.00143 1 05/15/2024 04:47 WG2286466 Ethylbenzene U T8 0.00105 0.00357 1 05/15/2024 04:47 WG2286466 Hexachloro-1,3-butadiene U T8 0.00856 0.0357 1 05/15/2024 04:47 WG2286466 Isopropylbenzene U T8 0.000607 0.00357 1 05/15/2024 04:47 WG2286466 p-Isopropyltoluene U T8 0.00364 0.00714 1 05/15/2024 04:47 WG2286466 2-Butanone (MEK)U T8 0.0906 0.143 1 05/15/2024 04:47 WG2286466 Methylene Chloride U T8 0.00948 0.0357 1 05/15/2024 04:47 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00325 0.0357 1 05/15/2024 04:47 WG2286466 Methyl tert-butyl ether U T8 0.000500 0.00143 1 05/15/2024 04:47 WG2286466 Naphthalene U T8 0.00697 0.0178 1 05/15/2024 04:47 WG2286466 n-Propylbenzene U T8 0.00136 0.00714 1 05/15/2024 04:47 WG2286466 Styrene U T8 0.000327 0.0178 1 05/15/2024 04:47 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00135 0.00357 1 05/15/2024 04:47 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000992 0.00357 1 05/15/2024 04:47 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 29 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 29 of 54 SAMPLE RESULTS - 12 L1736040 SB-3 (2) 25-30' Collected date/time: 04/30/24 15:02 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 1,1,2-Trichlorotrifluoroethane U T8 0.00108 0.00357 1 05/15/2024 04:47 WG2286466 Tetrachloroethene U T8 0.00128 0.00357 1 05/15/2024 04:47 WG2286466 Toluene 0.00904 T8 0.00186 0.00714 1 05/15/2024 04:47 WG2286466 1,2,3-Trichlorobenzene U T8 0.0105 0.0178 1 05/15/2024 04:47 WG2286466 1,2,4-Trichlorobenzene U T8 0.00628 0.0178 1 05/15/2024 04:47 WG2286466 1,1,1-Trichloroethane U T8 0.00132 0.00357 1 05/15/2024 04:47 WG2286466 1,1,2-Trichloroethane U T8 0.000852 0.00357 1 05/15/2024 04:47 WG2286466 Trichloroethene U T8 0.000834 0.00143 1 05/15/2024 04:47 WG2286466 Trichlorofluoromethane U T8 0.00118 0.00357 1 05/15/2024 04:47 WG2286466 1,2,3-Trichloropropane U T8 0.00231 0.0178 1 05/15/2024 04:47 WG2286466 1,2,4-Trimethylbenzene 0.0104 T8 0.00226 0.00714 1 05/15/2024 04:47 WG2286466 1,2,3-Trimethylbenzene 0.00317 J J4 T8 0.00226 0.00714 1 05/15/2024 04:47 WG2286466 1,3,5-Trimethylbenzene 0.00637 J T8 0.00285 0.00714 1 05/15/2024 04:47 WG2286466 Vinyl chloride U T8 0.00166 0.00357 1 05/15/2024 04:47 WG2286466 Xylenes, Total 0.0194 T8 0.00126 0.00928 1 05/15/2024 04:47 WG2286466 (S) Toluene-d8 111 75.0-131 05/15/2024 04:47 WG2286466 (S) 4-Bromofluorobenzene 98.8 67.0-138 05/15/2024 04:47 WG2286466 (S) 1,2-Dichloroethane-d4 90.9 70.0-130 05/15/2024 04:47 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00276 0.00720 1 05/15/2024 04:39 WG2286284 Acenaphthene U 0.00251 0.00720 1 05/15/2024 04:39 WG2286284 Acenaphthylene U 0.00259 0.00720 1 05/15/2024 04:39 WG2286284 Benzo(a)anthracene U 0.00207 0.00720 1 05/15/2024 04:39 WG2286284 Benzo(a)pyrene U 0.00215 0.00720 1 05/15/2024 04:39 WG2286284 Benzo(b)fluoranthene U 0.00183 0.00720 1 05/15/2024 04:39 WG2286284 Benzo(g,h,i)perylene U 0.00212 0.00720 1 05/15/2024 04:39 WG2286284 Benzo(k)fluoranthene U 0.00258 0.00720 1 05/15/2024 04:39 WG2286284 Chrysene U 0.00278 0.00720 1 05/15/2024 04:39 WG2286284 Dibenz(a,h)anthracene U 0.00206 0.00720 1 05/15/2024 04:39 WG2286284 Fluoranthene U 0.00272 0.00720 1 05/15/2024 04:39 WG2286284 Fluorene U 0.00246 0.00720 1 05/15/2024 04:39 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00217 0.00720 1 05/15/2024 04:39 WG2286284 Naphthalene U 0.00489 0.0240 1 05/15/2024 04:39 WG2286284 Phenanthrene U 0.00277 0.00720 1 05/15/2024 04:39 WG2286284 Pyrene U 0.00240 0.00720 1 05/15/2024 04:39 WG2286284 1-Methylnaphthalene U 0.00538 0.0240 1 05/15/2024 04:39 WG2286284 2-Methylnaphthalene U 0.00512 0.0240 1 05/15/2024 04:39 WG2286284 2-Chloronaphthalene U 0.00559 0.0240 1 05/15/2024 04:39 WG2286284 (S) p-Terphenyl-d14 61.1 23.0-120 05/15/2024 04:39 WG2286284 (S) Nitrobenzene-d5 71.3 14.0-149 05/15/2024 04:39 WG2286284 (S) 2-Fluorobiphenyl 84.6 34.0-125 05/15/2024 04:39 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 30 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 30 of 54 SAMPLE RESULTS - 13 L1736040 SB-6 (2) 24.5-19.5' Collected date/time: 04/30/24 11:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 05/15/2024 10:34 WG2286510 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 0.0450 J T8 0.0414 0.0567 1 05/15/2024 05:07 WG2286466 Acrylonitrile U T8 0.00409 0.0142 1 05/15/2024 05:07 WG2286466 Benzene U T8 0.000529 0.00113 1 05/15/2024 05:07 WG2286466 Bromobenzene U T8 0.00102 0.0142 1 05/15/2024 05:07 WG2286466 Bromodichloromethane U T8 0.000822 0.00283 1 05/15/2024 05:07 WG2286466 Bromoform U T8 0.00133 0.0283 1 05/15/2024 05:07 WG2286466 Bromomethane U T8 0.00223 0.0142 1 05/15/2024 05:07 WG2286466 n-Butylbenzene U T8 0.00595 0.0142 1 05/15/2024 05:07 WG2286466 sec-Butylbenzene U T8 0.00327 0.0142 1 05/15/2024 05:07 WG2286466 tert-Butylbenzene U T8 0.00221 0.00567 1 05/15/2024 05:07 WG2286466 Carbon tetrachloride U T8 0.00102 0.00567 1 05/15/2024 05:07 WG2286466 Chlorobenzene U T8 0.000238 0.00283 1 05/15/2024 05:07 WG2286466 Chlorodibromomethane U T8 0.000694 0.00283 1 05/15/2024 05:07 WG2286466 Chloroethane U T8 0.00193 0.00567 1 05/15/2024 05:07 WG2286466 Chloroform U T8 0.00117 0.00283 1 05/15/2024 05:07 WG2286466 Chloromethane U T8 0.00493 0.0142 1 05/15/2024 05:07 WG2286466 2-Chlorotoluene U T8 0.000981 0.00283 1 05/15/2024 05:07 WG2286466 4-Chlorotoluene U T8 0.000510 0.00567 1 05/15/2024 05:07 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00442 0.0283 1 05/15/2024 05:07 WG2286466 1,2-Dibromoethane U T8 0.000735 0.00283 1 05/15/2024 05:07 WG2286466 Dibromomethane U T8 0.000850 0.00567 1 05/15/2024 05:07 WG2286466 1,2-Dichlorobenzene U T8 0.000482 0.00567 1 05/15/2024 05:07 WG2286466 1,3-Dichlorobenzene U T8 0.000680 0.00567 1 05/15/2024 05:07 WG2286466 1,4-Dichlorobenzene U T8 0.000794 0.00567 1 05/15/2024 05:07 WG2286466 Dichlorodifluoromethane U T8 0.00183 0.00567 1 05/15/2024 05:07 WG2286466 1,1-Dichloroethane U T8 0.000557 0.00283 1 05/15/2024 05:07 WG2286466 1,2-Dichloroethane U T8 0.000736 0.00283 1 05/15/2024 05:07 WG2286466 1,1-Dichloroethene U T8 0.000687 0.00283 1 05/15/2024 05:07 WG2286466 cis-1,2-Dichloroethene U T8 0.000832 0.00283 1 05/15/2024 05:07 WG2286466 trans-1,2-Dichloroethene U T8 0.00118 0.00567 1 05/15/2024 05:07 WG2286466 1,2-Dichloropropane U T8 0.00161 0.00567 1 05/15/2024 05:07 WG2286466 1,1-Dichloropropene U T8 0.000917 0.00283 1 05/15/2024 05:07 WG2286466 1,3-Dichloropropane U T8 0.000568 0.00567 1 05/15/2024 05:07 WG2286466 cis-1,3-Dichloropropene U T8 0.000858 0.00283 1 05/15/2024 05:07 WG2286466 trans-1,3-Dichloropropene U T8 0.00129 0.00567 1 05/15/2024 05:07 WG2286466 2,2-Dichloropropane U T8 0.00156 0.00283 1 05/15/2024 05:07 WG2286466 Di-isopropyl ether U T8 0.000465 0.00113 1 05/15/2024 05:07 WG2286466 Ethylbenzene U T8 0.000836 0.00283 1 05/15/2024 05:07 WG2286466 Hexachloro-1,3-butadiene U T8 0.00680 0.0283 1 05/15/2024 05:07 WG2286466 Isopropylbenzene U T8 0.000482 0.00283 1 05/15/2024 05:07 WG2286466 p-Isopropyltoluene U T8 0.00289 0.00567 1 05/15/2024 05:07 WG2286466 2-Butanone (MEK)U T8 0.0720 0.113 1 05/15/2024 05:07 WG2286466 Methylene Chloride U T8 0.00753 0.0283 1 05/15/2024 05:07 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00258 0.0283 1 05/15/2024 05:07 WG2286466 Methyl tert-butyl ether U T8 0.000397 0.00113 1 05/15/2024 05:07 WG2286466 Naphthalene U T8 0.00553 0.0142 1 05/15/2024 05:07 WG2286466 n-Propylbenzene U T8 0.00108 0.00567 1 05/15/2024 05:07 WG2286466 Styrene U T8 0.000260 0.0142 1 05/15/2024 05:07 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.00107 0.00283 1 05/15/2024 05:07 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000788 0.00283 1 05/15/2024 05:07 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 31 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 31 of 54 SAMPLE RESULTS - 13 L1736040 SB-6 (2) 24.5-19.5' Collected date/time: 04/30/24 11:27 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 1,1,2-Trichlorotrifluoroethane U T8 0.000855 0.00283 1 05/15/2024 05:07 WG2286466 Tetrachloroethene U T8 0.00102 0.00283 1 05/15/2024 05:07 WG2286466 Toluene 0.0181 T8 0.00147 0.00567 1 05/15/2024 05:07 WG2286466 1,2,3-Trichlorobenzene U T8 0.00831 0.0142 1 05/15/2024 05:07 WG2286466 1,2,4-Trichlorobenzene U T8 0.00499 0.0142 1 05/15/2024 05:07 WG2286466 1,1,1-Trichloroethane U T8 0.00105 0.00283 1 05/15/2024 05:07 WG2286466 1,1,2-Trichloroethane U T8 0.000677 0.00283 1 05/15/2024 05:07 WG2286466 Trichloroethene U T8 0.000662 0.00113 1 05/15/2024 05:07 WG2286466 Trichlorofluoromethane U T8 0.000938 0.00283 1 05/15/2024 05:07 WG2286466 1,2,3-Trichloropropane U T8 0.00184 0.0142 1 05/15/2024 05:07 WG2286466 1,2,4-Trimethylbenzene 0.00576 T8 0.00179 0.00567 1 05/15/2024 05:07 WG2286466 1,2,3-Trimethylbenzene 0.00229 J J4 T8 0.00179 0.00567 1 05/15/2024 05:07 WG2286466 1,3,5-Trimethylbenzene 0.00357 J T8 0.00227 0.00567 1 05/15/2024 05:07 WG2286466 Vinyl chloride U T8 0.00132 0.00283 1 05/15/2024 05:07 WG2286466 Xylenes, Total 0.0125 T8 0.000998 0.00737 1 05/15/2024 05:07 WG2286466 (S) Toluene-d8 109 75.0-131 05/15/2024 05:07 WG2286466 (S) 4-Bromofluorobenzene 99.6 67.0-138 05/15/2024 05:07 WG2286466 (S) 1,2-Dichloroethane-d4 85.6 70.0-130 05/15/2024 05:07 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00243 0.00634 1 05/15/2024 04:57 WG2286284 Acenaphthene U 0.00221 0.00634 1 05/15/2024 04:57 WG2286284 Acenaphthylene U 0.00228 0.00634 1 05/15/2024 04:57 WG2286284 Benzo(a)anthracene U 0.00183 0.00634 1 05/15/2024 04:57 WG2286284 Benzo(a)pyrene U 0.00189 0.00634 1 05/15/2024 04:57 WG2286284 Benzo(b)fluoranthene U 0.00162 0.00634 1 05/15/2024 04:57 WG2286284 Benzo(g,h,i)perylene U 0.00187 0.00634 1 05/15/2024 04:57 WG2286284 Benzo(k)fluoranthene U 0.00227 0.00634 1 05/15/2024 04:57 WG2286284 Chrysene U 0.00245 0.00634 1 05/15/2024 04:57 WG2286284 Dibenz(a,h)anthracene U 0.00182 0.00634 1 05/15/2024 04:57 WG2286284 Fluoranthene U 0.00240 0.00634 1 05/15/2024 04:57 WG2286284 Fluorene U 0.00217 0.00634 1 05/15/2024 04:57 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00191 0.00634 1 05/15/2024 04:57 WG2286284 Naphthalene U 0.00431 0.0211 1 05/15/2024 04:57 WG2286284 Phenanthrene U 0.00244 0.00634 1 05/15/2024 04:57 WG2286284 Pyrene U 0.00211 0.00634 1 05/15/2024 04:57 WG2286284 1-Methylnaphthalene U 0.00475 0.0211 1 05/15/2024 04:57 WG2286284 2-Methylnaphthalene U 0.00452 0.0211 1 05/15/2024 04:57 WG2286284 2-Chloronaphthalene U 0.00493 0.0211 1 05/15/2024 04:57 WG2286284 (S) p-Terphenyl-d14 89.9 23.0-120 05/15/2024 04:57 WG2286284 (S) Nitrobenzene-d5 78.5 14.0-149 05/15/2024 04:57 WG2286284 (S) 2-Fluorobiphenyl 88.9 34.0-125 05/15/2024 04:57 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 32 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 32 of 54 SAMPLE RESULTS - 14 L1736040 SB-7 (2) 23-25' Collected date/time: 04/30/24 12:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.6 1 05/15/2024 10:34 WG2286510 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 T8 0.0378 0.0518 1 05/15/2024 05:28 WG2286466 Acrylonitrile U T8 0.00374 0.0129 1 05/15/2024 05:28 WG2286466 Benzene U T8 0.000483 0.00104 1 05/15/2024 05:28 WG2286466 Bromobenzene U T8 0.000932 0.0129 1 05/15/2024 05:28 WG2286466 Bromodichloromethane U T8 0.000750 0.00259 1 05/15/2024 05:28 WG2286466 Bromoform U T8 0.00121 0.0259 1 05/15/2024 05:28 WG2286466 Bromomethane U T8 0.00204 0.0129 1 05/15/2024 05:28 WG2286466 n-Butylbenzene U T8 0.00543 0.0129 1 05/15/2024 05:28 WG2286466 sec-Butylbenzene U T8 0.00298 0.0129 1 05/15/2024 05:28 WG2286466 tert-Butylbenzene U T8 0.00202 0.00518 1 05/15/2024 05:28 WG2286466 Carbon tetrachloride U T8 0.000930 0.00518 1 05/15/2024 05:28 WG2286466 Chlorobenzene U T8 0.000217 0.00259 1 05/15/2024 05:28 WG2286466 Chlorodibromomethane U T8 0.000633 0.00259 1 05/15/2024 05:28 WG2286466 Chloroethane U T8 0.00176 0.00518 1 05/15/2024 05:28 WG2286466 Chloroform U T8 0.00107 0.00259 1 05/15/2024 05:28 WG2286466 Chloromethane U T8 0.00450 0.0129 1 05/15/2024 05:28 WG2286466 2-Chlorotoluene U T8 0.000895 0.00259 1 05/15/2024 05:28 WG2286466 4-Chlorotoluene U T8 0.000466 0.00518 1 05/15/2024 05:28 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00404 0.0259 1 05/15/2024 05:28 WG2286466 1,2-Dibromoethane U T8 0.000671 0.00259 1 05/15/2024 05:28 WG2286466 Dibromomethane U T8 0.000776 0.00518 1 05/15/2024 05:28 WG2286466 1,2-Dichlorobenzene U T8 0.000440 0.00518 1 05/15/2024 05:28 WG2286466 1,3-Dichlorobenzene U T8 0.000621 0.00518 1 05/15/2024 05:28 WG2286466 1,4-Dichlorobenzene U T8 0.000725 0.00518 1 05/15/2024 05:28 WG2286466 Dichlorodifluoromethane U T8 0.00167 0.00518 1 05/15/2024 05:28 WG2286466 1,1-Dichloroethane U T8 0.000508 0.00259 1 05/15/2024 05:28 WG2286466 1,2-Dichloroethane U T8 0.000672 0.00259 1 05/15/2024 05:28 WG2286466 1,1-Dichloroethene U T8 0.000627 0.00259 1 05/15/2024 05:28 WG2286466 cis-1,2-Dichloroethene U T8 0.000760 0.00259 1 05/15/2024 05:28 WG2286466 trans-1,2-Dichloroethene U T8 0.00108 0.00518 1 05/15/2024 05:28 WG2286466 1,2-Dichloropropane U T8 0.00147 0.00518 1 05/15/2024 05:28 WG2286466 1,1-Dichloropropene U T8 0.000837 0.00259 1 05/15/2024 05:28 WG2286466 1,3-Dichloropropane U T8 0.000519 0.00518 1 05/15/2024 05:28 WG2286466 cis-1,3-Dichloropropene U T8 0.000784 0.00259 1 05/15/2024 05:28 WG2286466 trans-1,3-Dichloropropene U T8 0.00118 0.00518 1 05/15/2024 05:28 WG2286466 2,2-Dichloropropane U T8 0.00143 0.00259 1 05/15/2024 05:28 WG2286466 Di-isopropyl ether U T8 0.000424 0.00104 1 05/15/2024 05:28 WG2286466 Ethylbenzene U T8 0.000763 0.00259 1 05/15/2024 05:28 WG2286466 Hexachloro-1,3-butadiene U T8 0.00621 0.0259 1 05/15/2024 05:28 WG2286466 Isopropylbenzene U T8 0.000440 0.00259 1 05/15/2024 05:28 WG2286466 p-Isopropyltoluene U T8 0.00264 0.00518 1 05/15/2024 05:28 WG2286466 2-Butanone (MEK)U T8 0.0657 0.104 1 05/15/2024 05:28 WG2286466 Methylene Chloride U T8 0.00687 0.0259 1 05/15/2024 05:28 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00236 0.0259 1 05/15/2024 05:28 WG2286466 Methyl tert-butyl ether U T8 0.000362 0.00104 1 05/15/2024 05:28 WG2286466 Naphthalene U T8 0.00505 0.0129 1 05/15/2024 05:28 WG2286466 n-Propylbenzene U T8 0.000983 0.00518 1 05/15/2024 05:28 WG2286466 Styrene U T8 0.000237 0.0129 1 05/15/2024 05:28 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.000981 0.00259 1 05/15/2024 05:28 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000719 0.00259 1 05/15/2024 05:28 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 33 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 33 of 54 SAMPLE RESULTS - 14 L1736040 SB-7 (2) 23-25' Collected date/time: 04/30/24 12:40 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 1,1,2-Trichlorotrifluoroethane U T8 0.000780 0.00259 1 05/15/2024 05:28 WG2286466 Tetrachloroethene U T8 0.000927 0.00259 1 05/15/2024 05:28 WG2286466 Toluene 0.0118 T8 0.00135 0.00518 1 05/15/2024 05:28 WG2286466 1,2,3-Trichlorobenzene U T8 0.00759 0.0129 1 05/15/2024 05:28 WG2286466 1,2,4-Trichlorobenzene U T8 0.00455 0.0129 1 05/15/2024 05:28 WG2286466 1,1,1-Trichloroethane U T8 0.000955 0.00259 1 05/15/2024 05:28 WG2286466 1,1,2-Trichloroethane U T8 0.000618 0.00259 1 05/15/2024 05:28 WG2286466 Trichloroethene U T8 0.000604 0.00104 1 05/15/2024 05:28 WG2286466 Trichlorofluoromethane U T8 0.000856 0.00259 1 05/15/2024 05:28 WG2286466 1,2,3-Trichloropropane U T8 0.00168 0.0129 1 05/15/2024 05:28 WG2286466 1,2,4-Trimethylbenzene U T8 0.00164 0.00518 1 05/15/2024 05:28 WG2286466 1,2,3-Trimethylbenzene U J4 T8 0.00164 0.00518 1 05/15/2024 05:28 WG2286466 1,3,5-Trimethylbenzene U T8 0.00207 0.00518 1 05/15/2024 05:28 WG2286466 Vinyl chloride U T8 0.00120 0.00259 1 05/15/2024 05:28 WG2286466 Xylenes, Total U T8 0.000911 0.00673 1 05/15/2024 05:28 WG2286466 (S) Toluene-d8 111 75.0-131 05/15/2024 05:28 WG2286466 (S) 4-Bromofluorobenzene 98.6 67.0-138 05/15/2024 05:28 WG2286466 (S) 1,2-Dichloroethane-d4 85.1 70.0-130 05/15/2024 05:28 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00233 0.00609 1 05/15/2024 05:14 WG2286284 Acenaphthene U 0.00212 0.00609 1 05/15/2024 05:14 WG2286284 Acenaphthylene U 0.00219 0.00609 1 05/15/2024 05:14 WG2286284 Benzo(a)anthracene U 0.00175 0.00609 1 05/15/2024 05:14 WG2286284 Benzo(a)pyrene U 0.00182 0.00609 1 05/15/2024 05:14 WG2286284 Benzo(b)fluoranthene U 0.00155 0.00609 1 05/15/2024 05:14 WG2286284 Benzo(g,h,i)perylene U 0.00180 0.00609 1 05/15/2024 05:14 WG2286284 Benzo(k)fluoranthene U 0.00218 0.00609 1 05/15/2024 05:14 WG2286284 Chrysene U 0.00235 0.00609 1 05/15/2024 05:14 WG2286284 Dibenz(a,h)anthracene U 0.00174 0.00609 1 05/15/2024 05:14 WG2286284 Fluoranthene U 0.00230 0.00609 1 05/15/2024 05:14 WG2286284 Fluorene U 0.00208 0.00609 1 05/15/2024 05:14 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00184 0.00609 1 05/15/2024 05:14 WG2286284 Naphthalene U 0.00414 0.0203 1 05/15/2024 05:14 WG2286284 Phenanthrene U 0.00234 0.00609 1 05/15/2024 05:14 WG2286284 Pyrene U 0.00203 0.00609 1 05/15/2024 05:14 WG2286284 1-Methylnaphthalene U 0.00455 0.0203 1 05/15/2024 05:14 WG2286284 2-Methylnaphthalene U 0.00433 0.0203 1 05/15/2024 05:14 WG2286284 2-Chloronaphthalene U 0.00473 0.0203 1 05/15/2024 05:14 WG2286284 (S) p-Terphenyl-d14 87.0 23.0-120 05/15/2024 05:14 WG2286284 (S) Nitrobenzene-d5 78.4 14.0-149 05/15/2024 05:14 WG2286284 (S) 2-Fluorobiphenyl 86.2 34.0-125 05/15/2024 05:14 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 34 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 34 of 54 SAMPLE RESULTS - 15 L1736040 SB-10 (2) 23-25' Collected date/time: 04/30/24 13:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.1 1 05/15/2024 10:34 WG2286510 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 0.0604 T8 0.0381 0.0523 1 05/15/2024 05:48 WG2286466 Acrylonitrile U T8 0.00377 0.0131 1 05/15/2024 05:48 WG2286466 Benzene U T8 0.000488 0.00105 1 05/15/2024 05:48 WG2286466 Bromobenzene U T8 0.000941 0.0131 1 05/15/2024 05:48 WG2286466 Bromodichloromethane U T8 0.000758 0.00261 1 05/15/2024 05:48 WG2286466 Bromoform U T8 0.00122 0.0261 1 05/15/2024 05:48 WG2286466 Bromomethane U T8 0.00206 0.0131 1 05/15/2024 05:48 WG2286466 n-Butylbenzene U T8 0.00549 0.0131 1 05/15/2024 05:48 WG2286466 sec-Butylbenzene U T8 0.00301 0.0131 1 05/15/2024 05:48 WG2286466 tert-Butylbenzene U T8 0.00204 0.00523 1 05/15/2024 05:48 WG2286466 Carbon tetrachloride U T8 0.000938 0.00523 1 05/15/2024 05:48 WG2286466 Chlorobenzene U T8 0.000219 0.00261 1 05/15/2024 05:48 WG2286466 Chlorodibromomethane U T8 0.000640 0.00261 1 05/15/2024 05:48 WG2286466 Chloroethane U T8 0.00178 0.00523 1 05/15/2024 05:48 WG2286466 Chloroform U T8 0.00108 0.00261 1 05/15/2024 05:48 WG2286466 Chloromethane U T8 0.00455 0.0131 1 05/15/2024 05:48 WG2286466 2-Chlorotoluene U T8 0.000904 0.00261 1 05/15/2024 05:48 WG2286466 4-Chlorotoluene U T8 0.000470 0.00523 1 05/15/2024 05:48 WG2286466 1,2-Dibromo-3-Chloropropane U T8 0.00408 0.0261 1 05/15/2024 05:48 WG2286466 1,2-Dibromoethane U T8 0.000677 0.00261 1 05/15/2024 05:48 WG2286466 Dibromomethane U T8 0.000784 0.00523 1 05/15/2024 05:48 WG2286466 1,2-Dichlorobenzene U T8 0.000444 0.00523 1 05/15/2024 05:48 WG2286466 1,3-Dichlorobenzene U T8 0.000627 0.00523 1 05/15/2024 05:48 WG2286466 1,4-Dichlorobenzene U T8 0.000732 0.00523 1 05/15/2024 05:48 WG2286466 Dichlorodifluoromethane U T8 0.00168 0.00523 1 05/15/2024 05:48 WG2286466 1,1-Dichloroethane U T8 0.000513 0.00261 1 05/15/2024 05:48 WG2286466 1,2-Dichloroethane U T8 0.000678 0.00261 1 05/15/2024 05:48 WG2286466 1,1-Dichloroethene U T8 0.000633 0.00261 1 05/15/2024 05:48 WG2286466 cis-1,2-Dichloroethene U T8 0.000767 0.00261 1 05/15/2024 05:48 WG2286466 trans-1,2-Dichloroethene U T8 0.00109 0.00523 1 05/15/2024 05:48 WG2286466 1,2-Dichloropropane U T8 0.00148 0.00523 1 05/15/2024 05:48 WG2286466 1,1-Dichloropropene U T8 0.000845 0.00261 1 05/15/2024 05:48 WG2286466 1,3-Dichloropropane U T8 0.000524 0.00523 1 05/15/2024 05:48 WG2286466 cis-1,3-Dichloropropene U T8 0.000791 0.00261 1 05/15/2024 05:48 WG2286466 trans-1,3-Dichloropropene U T8 0.00119 0.00523 1 05/15/2024 05:48 WG2286466 2,2-Dichloropropane U T8 0.00144 0.00261 1 05/15/2024 05:48 WG2286466 Di-isopropyl ether U T8 0.000428 0.00105 1 05/15/2024 05:48 WG2286466 Ethylbenzene U T8 0.000770 0.00261 1 05/15/2024 05:48 WG2286466 Hexachloro-1,3-butadiene U T8 0.00627 0.0261 1 05/15/2024 05:48 WG2286466 Isopropylbenzene U T8 0.000444 0.00261 1 05/15/2024 05:48 WG2286466 p-Isopropyltoluene U T8 0.00266 0.00523 1 05/15/2024 05:48 WG2286466 2-Butanone (MEK)U T8 0.0664 0.105 1 05/15/2024 05:48 WG2286466 Methylene Chloride U T8 0.00694 0.0261 1 05/15/2024 05:48 WG2286466 4-Methyl-2-pentanone (MIBK) U T8 0.00238 0.0261 1 05/15/2024 05:48 WG2286466 Methyl tert-butyl ether U T8 0.000366 0.00105 1 05/15/2024 05:48 WG2286466 Naphthalene U T8 0.00510 0.0131 1 05/15/2024 05:48 WG2286466 n-Propylbenzene U T8 0.000993 0.00523 1 05/15/2024 05:48 WG2286466 Styrene U T8 0.000239 0.0131 1 05/15/2024 05:48 WG2286466 1,1,1,2-Tetrachloroethane U T8 0.000991 0.00261 1 05/15/2024 05:48 WG2286466 1,1,2,2-Tetrachloroethane U T8 0.000726 0.00261 1 05/15/2024 05:48 WG2286466 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 35 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 35 of 54 SAMPLE RESULTS - 15 L1736040 SB-10 (2) 23-25' Collected date/time: 04/30/24 13:31 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 1,1,2-Trichlorotrifluoroethane U T8 0.000788 0.00261 1 05/15/2024 05:48 WG2286466 Tetrachloroethene U T8 0.000936 0.00261 1 05/15/2024 05:48 WG2286466 Toluene 0.0175 T8 0.00136 0.00523 1 05/15/2024 05:48 WG2286466 1,2,3-Trichlorobenzene U T8 0.00766 0.0131 1 05/15/2024 05:48 WG2286466 1,2,4-Trichlorobenzene U T8 0.00460 0.0131 1 05/15/2024 05:48 WG2286466 1,1,1-Trichloroethane U T8 0.000965 0.00261 1 05/15/2024 05:48 WG2286466 1,1,2-Trichloroethane U T8 0.000624 0.00261 1 05/15/2024 05:48 WG2286466 Trichloroethene U T8 0.000610 0.00105 1 05/15/2024 05:48 WG2286466 Trichlorofluoromethane U T8 0.000864 0.00261 1 05/15/2024 05:48 WG2286466 1,2,3-Trichloropropane U T8 0.00169 0.0131 1 05/15/2024 05:48 WG2286466 1,2,4-Trimethylbenzene 0.00454 J T8 0.00165 0.00523 1 05/15/2024 05:48 WG2286466 1,2,3-Trimethylbenzene 0.00220 J J4 T8 0.00165 0.00523 1 05/15/2024 05:48 WG2286466 1,3,5-Trimethylbenzene U T8 0.00209 0.00523 1 05/15/2024 05:48 WG2286466 Vinyl chloride U T8 0.00121 0.00261 1 05/15/2024 05:48 WG2286466 Xylenes, Total U T8 0.000920 0.00679 1 05/15/2024 05:48 WG2286466 (S) Toluene-d8 111 75.0-131 05/15/2024 05:48 WG2286466 (S) 4-Bromofluorobenzene 100 67.0-138 05/15/2024 05:48 WG2286466 (S) 1,2-Dichloroethane-d4 87.6 70.0-130 05/15/2024 05:48 WG2286466 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM Result (dry) Qualifier MDL (dry) RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Anthracene U 0.00234 0.00611 1 05/15/2024 05:32 WG2286284 Acenaphthene U 0.00213 0.00611 1 05/15/2024 05:32 WG2286284 Acenaphthylene U 0.00220 0.00611 1 05/15/2024 05:32 WG2286284 Benzo(a)anthracene U 0.00176 0.00611 1 05/15/2024 05:32 WG2286284 Benzo(a)pyrene U 0.00182 0.00611 1 05/15/2024 05:32 WG2286284 Benzo(b)fluoranthene U 0.00156 0.00611 1 05/15/2024 05:32 WG2286284 Benzo(g,h,i)perylene U 0.00180 0.00611 1 05/15/2024 05:32 WG2286284 Benzo(k)fluoranthene U 0.00219 0.00611 1 05/15/2024 05:32 WG2286284 Chrysene U 0.00236 0.00611 1 05/15/2024 05:32 WG2286284 Dibenz(a,h)anthracene U 0.00175 0.00611 1 05/15/2024 05:32 WG2286284 Fluoranthene U 0.00231 0.00611 1 05/15/2024 05:32 WG2286284 Fluorene U 0.00209 0.00611 1 05/15/2024 05:32 WG2286284 Indeno(1,2,3-cd)pyrene U 0.00184 0.00611 1 05/15/2024 05:32 WG2286284 Naphthalene U 0.00416 0.0204 1 05/15/2024 05:32 WG2286284 Phenanthrene U 0.00235 0.00611 1 05/15/2024 05:32 WG2286284 Pyrene U 0.00204 0.00611 1 05/15/2024 05:32 WG2286284 1-Methylnaphthalene U 0.00457 0.0204 1 05/15/2024 05:32 WG2286284 2-Methylnaphthalene U 0.00435 0.0204 1 05/15/2024 05:32 WG2286284 2-Chloronaphthalene U 0.00475 0.0204 1 05/15/2024 05:32 WG2286284 (S) p-Terphenyl-d14 102 23.0-120 05/15/2024 05:32 WG2286284 (S) Nitrobenzene-d5 92.1 14.0-149 05/15/2024 05:32 WG2286284 (S) 2-Fluorobiphenyl 102 34.0-125 05/15/2024 05:32 WG2286284 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 36 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 36 of 54 QUALITY CONTROL SUMMARYWG2286509 Total Solids by Method 2540 G-2011 L1736040-01,02,03,04,05,06 Method Blank (MB) (MB) R4070282-1 05/15/24 10:56 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1735977-05 Original Sample (OS) • Duplicate (DUP) (OS) L1735977-05 05/15/24 10:56 • (DUP) R4070282-3 05/15/24 10:56 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.2 84.9 1 0.423 10 Laboratory Control Sample (LCS) (LCS) R4070282-2 05/15/24 10:56 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 37 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 37 of 54 QUALITY CONTROL SUMMARYWG2286510 Total Solids by Method 2540 G-2011 L1736040-07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4070281-1 05/15/24 10:34 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1736040-13 Original Sample (OS) • Duplicate (DUP) (OS) L1736040-13 05/15/24 10:34 • (DUP) R4070281-3 05/15/24 10:34 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 94.6 94.5 1 0.0373 10 Laboratory Control Sample (LCS) (LCS) R4070281-2 05/15/24 10:34 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 38 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 38 of 54 QUALITY CONTROL SUMMARYWG2286466 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,02,03,04,05,06,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4070481-3 05/15/24 01:25 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 0.00500 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 39 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 39 of 54 QUALITY CONTROL SUMMARYWG2286466 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,02,03,04,05,06,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4070481-3 05/15/24 01:25 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)U 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 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 0.00250 Toluene U 0.00130 0.00500 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 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-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 112 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 85.8 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4070481-1 05/15/24 00:05 • (LCSD) R4070481-2 05/15/24 00:25 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 0.650 0.695 104 111 10.0-160 6.69 31 Acrylonitrile 0.625 0.763 0.772 122 124 45.0-153 1.17 22 Benzene 0.125 0.121 0.119 96.8 95.2 70.0-123 1.67 20 Bromobenzene 0.125 0.121 0.116 96.8 92.8 73.0-121 4.22 20 Bromodichloromethane 0.125 0.0968 0.0965 77.4 77.2 73.0-121 0.310 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 40 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 40 of 54 QUALITY CONTROL SUMMARYWG2286466 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,02,03,04,05,06,08,09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4070481-1 05/15/24 00:05 • (LCSD) R4070481-2 05/15/24 00:25 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 0.119 0.113 95.2 90.4 64.0-132 5.17 20 Bromomethane 0.125 0.0989 0.0978 79.1 78.2 56.0-147 1.12 20 n-Butylbenzene 0.125 0.104 0.105 83.2 84.0 68.0-135 0.957 20 sec-Butylbenzene 0.125 0.109 0.108 87.2 86.4 74.0-130 0.922 20 tert-Butylbenzene 0.125 0.110 0.108 88.0 86.4 75.0-127 1.83 20 Carbon tetrachloride 0.125 0.124 0.125 99.2 100 66.0-128 0.803 20 Chlorobenzene 0.125 0.132 0.128 106 102 76.0-128 3.08 20 Chlorodibromomethane 0.125 0.125 0.123 100 98.4 74.0-127 1.61 20 Chloroethane 0.125 0.101 0.102 80.8 81.6 61.0-134 0.985 20 Chloroform 0.125 0.106 0.106 84.8 84.8 72.0-123 0.000 20 Chloromethane 0.125 0.124 0.126 99.2 101 51.0-138 1.60 20 2-Chlorotoluene 0.125 0.108 0.117 86.4 93.6 75.0-124 8.00 20 4-Chlorotoluene 0.125 0.104 0.100 83.2 80.0 75.0-124 3.92 20 1,2-Dibromo-3-Chloropropane 0.125 0.0893 0.0860 71.4 68.8 59.0-130 3.76 20 1,2-Dibromoethane 0.125 0.120 0.117 96.0 93.6 74.0-128 2.53 20 Dibromomethane 0.125 0.103 0.103 82.4 82.4 75.0-122 0.000 20 1,2-Dichlorobenzene 0.125 0.112 0.108 89.6 86.4 76.0-124 3.64 20 1,3-Dichlorobenzene 0.125 0.114 0.112 91.2 89.6 76.0-125 1.77 20 1,4-Dichlorobenzene 0.125 0.107 0.103 85.6 82.4 77.0-121 3.81 20 Dichlorodifluoromethane 0.125 0.104 0.103 83.2 82.4 43.0-156 0.966 20 1,1-Dichloroethane 0.125 0.123 0.122 98.4 97.6 70.0-127 0.816 20 1,2-Dichloroethane 0.125 0.116 0.116 92.8 92.8 65.0-131 0.000 20 1,1-Dichloroethene 0.125 0.134 0.133 107 106 65.0-131 0.749 20 cis-1,2-Dichloroethene 0.125 0.113 0.109 90.4 87.2 73.0-125 3.60 20 trans-1,2-Dichloroethene 0.125 0.116 0.110 92.8 88.0 71.0-125 5.31 20 1,2-Dichloropropane 0.125 0.128 0.125 102 100 74.0-125 2.37 20 1,1-Dichloropropene 0.125 0.111 0.111 88.8 88.8 73.0-125 0.000 20 1,3-Dichloropropane 0.125 0.123 0.120 98.4 96.0 80.0-125 2.47 20 cis-1,3-Dichloropropene 0.125 0.110 0.109 88.0 87.2 76.0-127 0.913 20 trans-1,3-Dichloropropene 0.125 0.112 0.110 89.6 88.0 73.0-127 1.80 20 2,2-Dichloropropane 0.125 0.0905 0.0922 72.4 73.8 59.0-135 1.86 20 Di-isopropyl ether 0.125 0.150 0.146 120 117 60.0-136 2.70 20 Ethylbenzene 0.125 0.121 0.120 96.8 96.0 74.0-126 0.830 20 Hexachloro-1,3-butadiene 0.125 0.102 0.101 81.6 80.8 57.0-150 0.985 20 Isopropylbenzene 0.125 0.125 0.127 100 102 72.0-127 1.59 20 p-Isopropyltoluene 0.125 0.108 0.107 86.4 85.6 72.0-133 0.930 20 2-Butanone (MEK)0.625 0.670 0.674 107 108 30.0-160 0.595 24 Methylene Chloride 0.125 0.106 0.106 84.8 84.8 68.0-123 0.000 20 4-Methyl-2-pentanone (MIBK) 0.625 0.720 0.700 115 112 56.0-143 2.82 20 Methyl tert-butyl ether 0.125 0.109 0.106 87.2 84.8 66.0-132 2.79 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 41 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 41 of 54 QUALITY CONTROL SUMMARYWG2286466 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,02,03,04,05,06,08,09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4070481-1 05/15/24 00:05 • (LCSD) R4070481-2 05/15/24 00:25 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 0.0882 0.0912 70.6 73.0 59.0-130 3.34 20 n-Propylbenzene 0.125 0.109 0.106 87.2 84.8 74.0-126 2.79 20 Styrene 0.125 0.148 0.133 118 106 72.0-127 10.7 20 1,1,1,2-Tetrachloroethane 0.125 0.121 0.119 96.8 95.2 74.0-129 1.67 20 1,1,2,2-Tetrachloroethane 0.125 0.0994 0.0957 79.5 76.6 68.0-128 3.79 20 1,1,2-Trichlorotrifluoroethane 0.125 0.107 0.111 85.6 88.8 61.0-139 3.67 20 Tetrachloroethene 0.125 0.132 0.132 106 106 70.0-136 0.000 20 Toluene 0.125 0.121 0.119 96.8 95.2 75.0-121 1.67 20 1,2,3-Trichlorobenzene 0.125 0.0952 0.102 76.2 81.6 59.0-139 6.90 20 1,2,4-Trichlorobenzene 0.125 0.0951 0.0986 76.1 78.9 62.0-137 3.61 20 1,1,1-Trichloroethane 0.125 0.116 0.115 92.8 92.0 69.0-126 0.866 20 1,1,2-Trichloroethane 0.125 0.113 0.109 90.4 87.2 78.0-123 3.60 20 Trichloroethene 0.125 0.141 0.143 113 114 76.0-126 1.41 20 Trichlorofluoromethane 0.125 0.104 0.108 83.2 86.4 61.0-142 3.77 20 1,2,3-Trichloropropane 0.125 0.103 0.100 82.4 80.0 67.0-129 2.96 20 1,2,4-Trimethylbenzene 0.125 0.0945 0.0915 75.6 73.2 70.0-126 3.23 20 1,2,3-Trimethylbenzene 0.125 0.0968 0.0924 77.4 73.9 74.0-124 J4 4.65 20 1,3,5-Trimethylbenzene 0.125 0.0954 0.0975 76.3 78.0 73.0-127 2.18 20 Vinyl chloride 0.125 0.116 0.116 92.8 92.8 63.0-134 0.000 20 Xylenes, Total 0.375 0.340 0.334 90.7 89.1 72.0-127 1.78 20 (S) Toluene-d8 112 111 75.0-131 (S) 4-Bromofluorobenzene 102 102 67.0-138 (S) 1,2-Dichloroethane-d4 96.9 98.9 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 42 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 42 of 54 QUALITY CONTROL SUMMARYWG2287760 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,03,05,07 Method Blank (MB) (MB) R4071097-3 05/17/24 11:51 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 0.00500 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 43 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 43 of 54 QUALITY CONTROL SUMMARYWG2287760 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,03,05,07 Method Blank (MB) (MB) R4071097-3 05/17/24 11:51 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)U 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 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 0.00250 Toluene U 0.00130 0.00500 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 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-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 108 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 89.6 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4071097-1 05/17/24 09:49 • (LCSD) R4071097-2 05/17/24 11:30 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 1.11 1.24 178 198 10.0-160 J4 J4 11.1 31 Acrylonitrile 0.625 0.794 0.800 127 128 45.0-153 0.753 22 Benzene 0.125 0.112 0.119 89.6 95.2 70.0-123 6.06 20 Bromobenzene 0.125 0.110 0.114 88.0 91.2 73.0-121 3.57 20 Bromodichloromethane 0.125 0.0928 0.0920 74.2 73.6 73.0-121 0.866 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 44 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 44 of 54 QUALITY CONTROL SUMMARYWG2287760 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,03,05,07 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4071097-1 05/17/24 09:49 • (LCSD) R4071097-2 05/17/24 11:30 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 0.111 0.114 88.8 91.2 64.0-132 2.67 20 Bromomethane 0.125 0.0879 0.0915 70.3 73.2 56.0-147 4.01 20 n-Butylbenzene 0.125 0.105 0.107 84.0 85.6 68.0-135 1.89 20 sec-Butylbenzene 0.125 0.106 0.108 84.8 86.4 74.0-130 1.87 20 tert-Butylbenzene 0.125 0.102 0.107 81.6 85.6 75.0-127 4.78 20 Carbon tetrachloride 0.125 0.118 0.125 94.4 100 66.0-128 5.76 20 Chlorobenzene 0.125 0.123 0.125 98.4 100 76.0-128 1.61 20 Chlorodibromomethane 0.125 0.118 0.123 94.4 98.4 74.0-127 4.15 20 Chloroethane 0.125 0.0959 0.0967 76.7 77.4 61.0-134 0.831 20 Chloroform 0.125 0.102 0.108 81.6 86.4 72.0-123 5.71 20 Chloromethane 0.125 0.129 0.136 103 109 51.0-138 5.28 20 2-Chlorotoluene 0.125 0.112 0.115 89.6 92.0 75.0-124 2.64 20 4-Chlorotoluene 0.125 0.0962 0.0937 77.0 75.0 75.0-124 2.63 20 1,2-Dibromo-3-Chloropropane 0.125 0.0881 0.0928 70.5 74.2 59.0-130 5.20 20 1,2-Dibromoethane 0.125 0.113 0.116 90.4 92.8 74.0-128 2.62 20 Dibromomethane 0.125 0.0963 0.101 77.0 80.8 75.0-122 4.76 20 1,2-Dichlorobenzene 0.125 0.105 0.109 84.0 87.2 76.0-124 3.74 20 1,3-Dichlorobenzene 0.125 0.108 0.112 86.4 89.6 76.0-125 3.64 20 1,4-Dichlorobenzene 0.125 0.103 0.0989 82.4 79.1 77.0-121 4.06 20 Dichlorodifluoromethane 0.125 0.110 0.122 88.0 97.6 43.0-156 10.3 20 1,1-Dichloroethane 0.125 0.119 0.123 95.2 98.4 70.0-127 3.31 20 1,2-Dichloroethane 0.125 0.111 0.116 88.8 92.8 65.0-131 4.41 20 1,1-Dichloroethene 0.125 0.131 0.137 105 110 65.0-131 4.48 20 cis-1,2-Dichloroethene 0.125 0.108 0.113 86.4 90.4 73.0-125 4.52 20 trans-1,2-Dichloroethene 0.125 0.107 0.109 85.6 87.2 71.0-125 1.85 20 1,2-Dichloropropane 0.125 0.119 0.124 95.2 99.2 74.0-125 4.12 20 1,1-Dichloropropene 0.125 0.104 0.110 83.2 88.0 73.0-125 5.61 20 1,3-Dichloropropane 0.125 0.114 0.117 91.2 93.6 80.0-125 2.60 20 cis-1,3-Dichloropropene 0.125 0.103 0.104 82.4 83.2 76.0-127 0.966 20 trans-1,3-Dichloropropene 0.125 0.103 0.106 82.4 84.8 73.0-127 2.87 20 2,2-Dichloropropane 0.125 0.0876 0.0892 70.1 71.4 59.0-135 1.81 20 Di-isopropyl ether 0.125 0.153 0.150 122 120 60.0-136 1.98 20 Ethylbenzene 0.125 0.112 0.118 89.6 94.4 74.0-126 5.22 20 Hexachloro-1,3-butadiene 0.125 0.101 0.107 80.8 85.6 57.0-150 5.77 20 Isopropylbenzene 0.125 0.120 0.125 96.0 100 72.0-127 4.08 20 p-Isopropyltoluene 0.125 0.104 0.108 83.2 86.4 72.0-133 3.77 20 2-Butanone (MEK)0.625 0.707 0.677 113 108 30.0-160 4.34 24 Methylene Chloride 0.125 0.109 0.109 87.2 87.2 68.0-123 0.000 20 4-Methyl-2-pentanone (MIBK) 0.625 0.710 0.726 114 116 56.0-143 2.23 20 Methyl tert-butyl ether 0.125 0.104 0.105 83.2 84.0 66.0-132 0.957 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 45 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 45 of 54 QUALITY CONTROL SUMMARYWG2287760 Volatile Organic Compounds (GC/MS) by Method 8260B L1736040-01,03,05,07 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4071097-1 05/17/24 09:49 • (LCSD) R4071097-2 05/17/24 11:30 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 0.0876 0.0931 70.1 74.5 59.0-130 6.09 20 n-Propylbenzene 0.125 0.102 0.106 81.6 84.8 74.0-126 3.85 20 Styrene 0.125 0.138 0.145 110 116 72.0-127 4.95 20 1,1,1,2-Tetrachloroethane 0.125 0.115 0.124 92.0 99.2 74.0-129 7.53 20 1,1,2,2-Tetrachloroethane 0.125 0.102 0.102 81.6 81.6 68.0-128 0.000 20 1,1,2-Trichlorotrifluoroethane 0.125 0.0958 0.103 76.6 82.4 61.0-139 7.24 20 Tetrachloroethene 0.125 0.121 0.127 96.8 102 70.0-136 4.84 20 Toluene 0.125 0.113 0.116 90.4 92.8 75.0-121 2.62 20 1,2,3-Trichlorobenzene 0.125 0.0995 0.103 79.6 82.4 59.0-139 3.46 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 0.105 0.116 84.0 92.8 69.0-126 9.95 20 1,1,2-Trichloroethane 0.125 0.107 0.105 85.6 84.0 78.0-123 1.89 20 Trichloroethene 0.125 0.136 0.142 109 114 76.0-126 4.32 20 Trichlorofluoromethane 0.125 0.100 0.109 80.0 87.2 61.0-142 8.61 20 1,2,3-Trichloropropane 0.125 0.0992 0.0994 79.4 79.5 67.0-129 0.201 20 1,2,4-Trimethylbenzene 0.125 0.0967 0.100 77.4 80.0 70.0-126 3.36 20 1,2,3-Trimethylbenzene 0.125 0.0929 0.0977 74.3 78.2 74.0-124 5.04 20 1,3,5-Trimethylbenzene 0.125 0.0893 0.0925 71.4 74.0 73.0-127 J4 3.52 20 Vinyl chloride 0.125 0.108 0.116 86.4 92.8 63.0-134 7.14 20 Xylenes, Total 0.375 0.316 0.329 84.3 87.7 72.0-127 4.03 20 (S) Toluene-d8 110 112 75.0-131 (S) 4-Bromofluorobenzene 101 105 67.0-138 (S) 1,2-Dichloroethane-d4 96.9 98.2 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 46 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 46 of 54 QUALITY CONTROL SUMMARYWG2286284 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1736040-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4070055-2 05/14/24 23:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Anthracene U 0.00230 0.00600 Acenaphthene U 0.00209 0.00600 Acenaphthylene U 0.00216 0.00600 Benzo(a)anthracene U 0.00173 0.00600 Benzo(a)pyrene U 0.00179 0.00600 Benzo(b)fluoranthene U 0.00153 0.00600 Benzo(g,h,i)perylene U 0.00177 0.00600 Benzo(k)fluoranthene U 0.00215 0.00600 Chrysene U 0.00232 0.00600 Dibenz(a,h)anthracene U 0.00172 0.00600 Fluoranthene U 0.00227 0.00600 Fluorene U 0.00205 0.00600 Indeno(1,2,3-cd)pyrene U 0.00181 0.00600 Naphthalene U 0.00408 0.0200 Phenanthrene U 0.00231 0.00600 Pyrene U 0.00200 0.00600 1-Methylnaphthalene U 0.00449 0.0200 2-Methylnaphthalene U 0.00427 0.0200 2-Chloronaphthalene U 0.00466 0.0200 (S) p-Terphenyl-d14 107 23.0-120 (S) Nitrobenzene-d5 89.7 14.0-149 (S) 2-Fluorobiphenyl 105 34.0-125 Laboratory Control Sample (LCS) (LCS) R4070055-1 05/14/24 23:04 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Anthracene 0.0800 0.0790 98.8 50.0-126 Acenaphthene 0.0800 0.0825 103 50.0-120 Acenaphthylene 0.0800 0.0822 103 50.0-120 Benzo(a)anthracene 0.0800 0.0779 97.4 45.0-120 Benzo(a)pyrene 0.0800 0.0744 93.0 42.0-120 Benzo(b)fluoranthene 0.0800 0.0869 109 42.0-121 Benzo(g,h,i)perylene 0.0800 0.0801 100 45.0-125 Benzo(k)fluoranthene 0.0800 0.0856 107 49.0-125 Chrysene 0.0800 0.0860 108 49.0-122 Dibenz(a,h)anthracene 0.0800 0.0768 96.0 47.0-125 Fluoranthene 0.0800 0.0882 110 49.0-129 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 47 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 47 of 54 QUALITY CONTROL SUMMARYWG2286284 Semi Volatile Organic Compounds (GC/MS) by Method 8270C-SIM L1736040-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 Laboratory Control Sample (LCS) (LCS) R4070055-1 05/14/24 23:04 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Fluorene 0.0800 0.0901 113 49.0-120 Indeno(1,2,3-cd)pyrene 0.0800 0.0708 88.5 46.0-125 Naphthalene 0.0800 0.0843 105 50.0-120 Phenanthrene 0.0800 0.0863 108 47.0-120 Pyrene 0.0800 0.0887 111 43.0-123 1-Methylnaphthalene 0.0800 0.0895 112 51.0-121 2-Methylnaphthalene 0.0800 0.0835 104 50.0-120 2-Chloronaphthalene 0.0800 0.0876 110 50.0-120 (S) p-Terphenyl-d14 113 23.0-120 (S) Nitrobenzene-d5 92.9 14.0-149 (S) 2-Fluorobiphenyl 110 34.0-125 L1736040-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1736040-06 05/15/24 02:18 • (MS) R4070055-3 05/15/24 02:36 • (MSD) R4070055-4 05/15/24 02:53 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 %%%%% Anthracene 0.0824 U 0.0549 0.0577 66.6 70.0 1 10.0-145 5.04 30 Acenaphthene 0.0824 U 0.0590 0.0612 71.6 74.2 1 14.0-127 3.67 27 Acenaphthylene 0.0824 U 0.0595 0.0616 72.2 74.7 1 21.0-124 3.47 25 Benzo(a)anthracene 0.0824 U 0.0528 0.0552 64.0 67.0 1 10.0-139 4.48 30 Benzo(a)pyrene 0.0824 U 0.0561 0.0591 68.1 71.7 1 10.0-141 5.11 31 Benzo(b)fluoranthene 0.0824 U 0.0624 0.0656 75.8 79.6 1 10.0-140 4.93 36 Benzo(g,h,i)perylene 0.0824 U 0.0574 0.0597 69.6 72.4 1 10.0-140 3.95 33 Benzo(k)fluoranthene 0.0824 U 0.0588 0.0624 71.4 75.8 1 10.0-137 5.89 31 Chrysene 0.0824 U 0.0618 0.0652 75.0 79.1 1 10.0-145 5.30 30 Dibenz(a,h)anthracene 0.0824 U 0.0520 0.0546 63.1 66.3 1 10.0-132 4.93 31 Fluoranthene 0.0824 U 0.0625 0.0662 75.9 80.4 1 10.0-153 5.71 33 Fluorene 0.0824 U 0.0626 0.0653 76.0 79.2 1 11.0-130 4.11 29 Indeno(1,2,3-cd)pyrene 0.0824 U 0.0501 0.0523 60.8 63.5 1 10.0-137 4.31 32 Naphthalene 0.0824 U 0.0602 0.0634 73.1 76.9 1 10.0-135 5.10 27 Phenanthrene 0.0824 U 0.0622 0.0652 75.5 79.1 1 10.0-144 4.62 31 Pyrene 0.0824 U 0.0637 0.0668 77.3 81.1 1 10.0-148 4.83 35 1-Methylnaphthalene 0.0824 U 0.0639 0.0664 77.6 80.6 1 10.0-142 3.87 28 2-Methylnaphthalene 0.0824 U 0.0595 0.0632 72.2 76.7 1 10.0-137 6.00 28 2-Chloronaphthalene 0.0824 U 0.0625 0.0650 75.9 79.0 1 29.0-120 3.95 24 (S) p-Terphenyl-d14 79.1 80.9 23.0-120 (S) Nitrobenzene-d5 67.8 69.4 14.0-149 (S) 2-Fluorobiphenyl 80.4 81.5 34.0-125 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 48 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 48 of 54 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 J The identification of the analyte is acceptable; the reported value is an estimate. J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. J4 The associated batch QC was outside the established quality control range for accuracy. J7 Surrogate recovery cannot be used for control limit evaluation due to dilution. T8 Sample(s) received past/too close to holding time expiration. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 49 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 49 of 54 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 ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 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 ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 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 ⁵1461.02 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 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 12:27 50 of 54 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TRC - Lakewood, CO 564624.0000.0000 L1736040 05/21/24 16:14 50 of 54