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Appendix H2 - Phase II Soil Vapor Investigation Report
PHASE II SOIL VAPOR INVESTIGATION REPORT 13592 Slover Avenue Fontana, California 92335 Assessor’s Parcel Numbers (APNs): 0238-062-36-0000 & -39- 0000 Alere Property Group LLC 100 Bayview Circle, Suite 310 Newport Beach, California 92660 (949) 509-5002 3900 Kilroy Airport Way, Suite 100 Long Beach, California 90806 (562) 426-9544 Project No. 01221034.00 Task 2 | March 24, 2021 Phase II – 13592 Slover Avenue Page ii www.scsengineers.com Table of Contents Section Page DISCLAIMER ................................................................................................................................................ iv 1 INTRODUCTION ................................................................................................................................... 1 2 GENERAL BACKGROUND ................................................................................................................... 1 3 PHYSICAL SETTING ............................................................................................................................. 2 Physiographic Setting ........................................................................................................................ 2 Geology and Soils ............................................................................................................................... 2 Groundwater ....................................................................................................................................... 2 4 INITIAL SITE INVESTIGATION AND ANALYTICAL RESULTS ................................................................ 3 Subsurface Utilities Clearance .......................................................................................................... 3 Soil Vapor Sample Collection ............................................................................................................ 3 Soil Vapor Analytical Results ............................................................................................................. 3 5 DISCUSSION OF ANALYTICAL RESULTS AND REGULATORY LIMITS ................................................ 4 VOCs in Soil Vapor .............................................................................................................................. 4 6 CONCLUSIONS AND RECOMMENDATIONS ....................................................................................... 4 7 REFERENCES ...................................................................................................................................... 5 Figures Figure 1 Site Location Map Figure 2 Google Aerial Image of Property Showing Soil Vapor Sample Locations Appendix Appendix A H&P Laboratory Report Phase II – 13592 Slover Avenue Page iii www.scsengineers.com This Phase II Soil Vapor Investigation Report dated March 24, 2021 for 13592 Slover Avenue, Fontana, California was prepared and reviewed by the following: Tyler Watkins Project Professional SCS ENGINEERS Justin Rauzon, REPA Project Manager SCS ENGINEERS Jeffrey T. Sieg, PG Technical Reviewer SCS ENGINEERS Phase II – 13592 Slover Avenue Page iv www.scsengineers.com DISCLAIMER This report has been prepared for Alere Property Group LLC with specific application to an investigation of soil vapor conducted at 13592 Slover Avenue, Fontana, California. This report has been prepared in accordance with the care and skill generally exercised by reputable professionals, under similar circumstances, in this or similar localities. No other warranty, express or implied, is made as to the professional opinions presented herein. No other party, known or unknown to SCS Engineers, is intended as a beneficiary of this work product, its content or information embedded therein. Third parties use this report at their own risk. Changes in site conditions may occur due to variation in rainfall, temperature, water usage, or other factors. Additional information that was not available to the consultant at the time of this investigation or changes that may occur on the site or in the surrounding area may result in modification to the site that would impact the summary and recommendations presented herein. This report is not a legal opinion. Phase II – 13592 Slover Avenue Page 1 www.scsengineers.com 1 INTRODUCTION SCS Engineers (SCS) was retained by Alere Property Group LLC (Alere) to conduct a soil vapor investigation at 13592 Slover Avenue, Fontana, California (the “Property”). Investigation activities were conducted in accordance with SCS’s proposal dated March 10, 2021 (Proposal No. 010257221). A map showing the location of the Property is provided as Figure 1. 2 GENERAL BACKGROUND SCS prepared a Phase I Environmental Site Assessment (Phase I ESA) for the Property dated March 8, 2021 (SCS Project Number 01221034.00). The Property is located on the north side of Slover Avenue, approximately 3,500 feet west of the intersection between Slover Avenue and South Etiwanda Avenue. It is approximately 17.4 acres and is currently occupied by the Clark Pacific pre- cast concrete manufacturing facility. There are four main buildings on the Property: a production building, wood shop, maintenance shop, and office. The remainder of the Property is occupied by pre-cast concrete manufacturing activities and associated parking areas. With the exception of a few dirt pathways, the Property was undeveloped or vacant land from at least 1896 through the early-1950s. A natural seasonal drainage creek historically crossed the northwestern corner of the Property. The drainage area was diminished after a flood control channel was constructed 600 feet west of the Property in the early 1950s. Industrial facilities were constructed on the Property in the mid- to late-1950s, including three buildings and rail spurs. Site contacts reported that the original occupant was Kaiser Steel, but city directory records indicated that Graver Tank and Mfg. Co. (Graver) occupied the Property from 1955. Tecon Pacific purchased the Property in 1984 and, by 1990, the Property was developed in its present day configuration. Tecon Pacific conducted pre-cast concrete manufacturing operations. In 1999, ownership of the Property transferred from Tecon Pacific to Clark Pacific, however site operations remained the same. SCS interviewed Mr. Richard Maddux, an environmental engineer with Clark Pacific. Mr. Maddux informed SCS that chlorinated solvents were historically used on the Property in a parts washer that was located in the maintenance area. According to Mr. Maddux, chlorinated solvent use at the Property ceased six years ago (circa 2015). In the Phase I ESA, SCS identified the industrial/manufacturing operations at the Property dating back to the 1950s as a recognized environmental condition (REC). Few details about the historical Kaiser and Graver operations were available. Clark Pacific (and likely its predecessor Tecon Pacific) used chlorinated solvents at the Property through approximately 2015. Four underground storage tanks (USTs); a 1,000-gallon single-walled gasoline UST and three 20,000-gallon single-walled diesel USTs were historical located on the Property. The USTs were removed in 1991. The tanks were installed at the Property between 1986 and 1987. A report detailing the removal of the tanks was submitted to the San Bernardino County Fire Department (SBCFD). Data included in the report shows soil samples were collected from each end of the tanks, from one to two feet below the bottom of the tank. Soil samples were analyzed for total petroleum hydrocarbons (TPH) and fuel-related volatile organic compounds (VOCs) and the results for all parameters were not detected above the laboratory’s reporting limit. The SBCFD granted a no further action (NFA) letter to the Property in 1998. Regulatory database information identified no known or suspected contamination sites in the area immediately surrounding the Property. Based on the type of listing and relative cross- and up- gradient locations, the Kaiser Streel facility and related sites approximately 0.5 to 0.75 miles to the north and northwest of the Property were considered as possible contributors to regional volatile Phase II – 13592 Slover Avenue Page 2 www.scsengineers.com organic compound (VOC) groundwater contamination. A review of available groundwater information at the former Kaiser Steel facility, cross- and up-gradient from the Property, indicates that there have been some regional VOC impacts to groundwater. However, with the exception of a single trace detection of chloroform, the up-gradient Kaiser wells did not identify any detectable concentrations of VOCs during multiple sampling events between 2009 and 2011. Grounder is estimated to be more than 300 feet below ground surface at the Property. Based on the available information, SCS did not identify likely impacts to groundwater beneath the Property from onsite or offsite sources. Reportedly, Clark Pacific utilized chlorinated solvents at the Property from 1999 until 2015. Considering Clark Pacific and Tecon Pacific conducted the same manufacturing processes, it is probable that chlorinated solvents were utilized even earlier, as far back as 1984. Based on the historical use of chlorinated solvents on the Property until approximately 2015, as wells as the industrial/manufacturing operations at the Property dating back to the 1950s, SCS recommended a Phase II investigation that included collection and laboratory analysis of soil vapor samples. 3 PHYSICAL SETTING PHYSIOGRAPHIC SETTING According to the U.S. Geological Survey (USGS) Fontana, California 7.5-minute topographic maps, the Property is located in the Upper Santa Ana Valley, a broad area bordered to the north by the Transverse Ranges (the San Gabriel and San Bernardino Mountains), to the south by the Jurupa Mountains and other ranges of the Perris Block, to the east by the San Jacinto Fault, and to the west by the Chino Fault. The Property is located at an average elevation of about 980 to 990 feet above mean sea level (msl); the local topography slopes to the south. The nearest surface water is the Etiwanda Creek/San Sevaine Creek flood control channel located approximately 645 feet west of the Property. GEOLOGY AND SOILS The surficial geological unit in the general area of the property consists of Holocene Younger Alluvium, which is made up predominantly of alluvial sand- and silt-sized bedrock fragments and reworked Older Alluvium. Underlying the surficial units is early Pleistocene-age Older alluvium consisting of sand, silty-sand, and gravel. The alluvial sediments range in thickness from 350 to 700 feet below ground surface (bgs). Below these units is dense, non-water-bearing granitic bedrock. Surface sediments at the Property consist of alluvial material derived from the San Gabriel Mountains, located approximately seven miles to the north. Sediments encountered during a SCS Phase II investigation at the National Oilwell Varco Ameron Facility, located approximately 850 feet west of the Property at 13032 Slover Avenue, consisted primarily of medium- and coarse-grained sand with some gravel to approximately 30-40 feet bgs with fine sands and silts to depths of 150 feet bgs (SCS, 2013). Based on proximity, similar conditions are anticipated at the Property. GROUNDWATER The Property overlies the Upper Santa Ana Valley Groundwater Basin, Chino Subbasin. Based on measurements at former groundwater wells at the former National Oilwell Varco Ameron site, groundwater was encountered at approximately 311 feet bgs (SCS, 2013). Regional information from the Chino Basin Optimum Management Program indicates that groundwater in the area flows southwesterly in direction (Wildermuth, 2011). Groundwater in the area has been impacted by total Phase II – 13592 Slover Avenue Page 3 www.scsengineers.com dissolved solids, total organic carbon, and traces of VOCs such as trichloroethene (TCE) and 1,1- dichloroethene, originating from the nearby Kaiser Steel Mill site (Wildermuth, 2011). 4 INITIAL SITE INVESTIGATION AND ANALYTICAL RESULTS SUBSURFACE UTILITIES CLEARANCE As required by law, SCS marked areas of investigation and contacted Underground Service Alert prior to conducting any subsurface work (Dig Alert No. A210680706). On March 15, 2021 GPRS Inc., of Los Angeles/Orange County, California conducted a geophysical survey using electromagnetic survey equipment to clear proposed boring locations of subsurface utilities and/or structures. SOIL VAPOR SAMPLE COLLECTION Field activities were conducted on March 15, 2021. Under the direction of SCS, H&P Mobile Geochemistry (H&P) of Carlsbad, California installed 15 temporary soil vapor probes, designated SV- 1 through SV-15, to a depth of approximately 5 feet bgs. The location of the probes are depicted in Figure 2. Vapor probes were installed using a truck-mounted direct-push drill rig or rotohammer and hand tools. At each location, a steel rod was advanced to the target depth. The steel rod was then retracted and new (clean) 1/8-inch diameter Nylaflow tubing, with a polypropylene filter placed on the bottom end, was inserted to the desired depth. Clean #2/12 Monterey sand was placed in a 6- inch vertical interval around each filter and dry granular bentonite was placed approximately 6- inches above the sand pack. Hydrated bentonite was used to seal the annulus of the boring. Soil vapor sampling was conducted in general accordance with the Advisory – Active Soil Gas Investigations, published by the California Environmental Protection Agency (CalEPA), Department of Toxic Substance Control (DTSC), Los Angeles Regional Water Quality Control Board (LARWQCB), and San Francisco Regional Water Quality Control Board (SFRWQCB) in July 2015 (the “Guidance”). Following a minimum equilibration period of two hours, a shut-in test was conducted and then a leak- check compound (1,1-difluoroethane [1,1-DFA]) was placed at the surface while the tubing was purged to remove ambient air from the sampling system in order to ensure that the collected soil vapor sample was representative of subsurface conditions. A total of 16 soil vapor samples (including a replicate sample from SV-6) were collected and analyzed for VOCs using Method H&P 8260SV, a modified version of EPA Method 8260B, in a mobile laboratory provided by H&P. H&P is certified by the United States Department of Defense Environmental Laboratory Accreditation Program (DoD-ELAP) to conduct the specified analysis. Chain-of custody documentation was completed to track the samples accurately from the point of collection through analysis. Following completion of sample collection and analyses, the temporary probes were removed and boreholes were patched to match the surrounding surface. No soil cuttings requiring disposal were generated during this investigation. SOIL VAPOR ANALYTICAL RESULTS The H&P laboratory report, chain-of-custody documentation, and quality assurance/control (QA/QC) data are included as Appendix B. As shown, VOCs were not detected in any of the soil vapor samples at concentrations above the laboratory’s detection limits. Phase II – 13592 Slover Avenue Page 4 www.scsengineers.com 5 DISCUSSION OF ANALYTICAL RESULTS AND REGULATORY LIMITS VOCS IN SOIL VAPOR Regulatory agencies such as the United States Environmental Protection Agency (U.S. EPA) and the Department of Toxic Substance Control (DTSC) have calculated screening levels for soil vapor samples that are considered protective of human-health in the event that vapor intrusion from VOCs is occurring. The calculations use various attenuation, hazard, inhalation risk factors for the specific constituent on concern. As stated, none of the samples contained VOCs at concentrations above the laboratory’s detection limit. The laboratory’s detection limits are far below the screening levels utilizing an attenuation factor of 0.0005 for commercial/industrial land use, suggesting that even if VOCs were present at the laboratory’s detection limit they would not be at concentrations that would present a significant health risk. In the latest update to Human and Ecological Risk Office (HERO) Note No. 3, DTSC also recommended that screening assessments calculate soil vapor screening levels using the U.S. EPA recommended attenuation factor of 0.03 (based on June 2015 guidance) for sub-slab soil gas and “near-source” exterior soil gas. Use of this attenuation factor was also in the Public Draft Supplemental Guidance: Screening and Evaluating Vapor Intrusion released by DTSC and the California Water Resources Control Boards in February 2020. These attenuation factors result in extremely conservative screening levels. With the exception of tetrachloroethene, benzene, and ethylbenzene, the laboratory’s reporting limit for specific analytes are below the screening levels using an attenuation factor of 0.03, indicating no significant risks associated with vapor intrusion. Given that the screening levels for VOCs, utilizing an attenuation factor of 0.03 is an extremely conservative factor generated from a limited study of primarily residential homes with degraded concrete/basements, it would not apply to new development. Therefore, the laboratory’s reporting limit at these low levels is considered sufficient to show that there is no significant risk to human health from vapor intrusion of VOCs at the Property. 6 CONCLUSIONS AND RECOMMENDATIONS On March 15, 2021, SCS conducted a soil vapor investigation at the Property. Based on results of this investigation, SCS concludes the following: • VOCs were not detected in any of the samples analyzed at concentrations above laboratory reporting limits. • The results of the soil vapor investigation indicate that there are no significant health risks associated with vapor intrusion present at the Property. Additional investigation of soil vapor is not recommended at this time. Phase II – 13592 Slover Avenue Page 5 www.scsengineers.com 7 REFERENCES California Department of Toxic Substances Control (DTSC), Office of Human and Ecological Risk (HERO), June 2020. Human Health Risk Assessment (HHRA) Note Number 3. California Department of Toxic Substances Control (DTSC) and California Environmental Protection Agency (CalEPA), October 2011. Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air (Vapor Intrusion Guidance). California Department of Toxic Substances Control (DTSC) and California Water Resources Control Boards, February 2020. Public Draft Supplemental Guidance: Screening and Evaluating Vapor Intrusion. California Environmental Protection Agency (CalEPA) and California Department of Toxic Substances Control (DTSC), July 2015. Advisory – Active Soil Gas Investigations. SCS Engineers, March 8, 2021. Phase I Environmental Site Assessment, 13592 Slover Avenue, Fontana, California 92335. U.S. EPA, June 2015. Oswer Technical Guide for Assessing and Mitigating the Vapor Intrusion Pathway from Subsurface Vapor Sources to Indoor Air. U.S. EPA, November 2020. Regional Screening Level (RSL) Summary Table. Wildermuth Environmental Inc. (Wildermuth), June 2017. Chino Basin Optimum Management Program, 2016 State of the Basin Report. Phase II – 13592 Slover Avenue www.scsengineers.com Figures 1 and 2 Copyright:© 2013 National Geographic Society, i-cubed 0 2,0001,000 Feet FIGURE1 S C S E N G I N E E R S 4 SITE: SITE LOCATION MAP Job No.:01221034.00 Title: PROJECT SITE 13592 Slover Avenue Fontana, California 923353900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806 SV-1SV-2SV-3SV-4SV-5SV-6SV-7SV-8SV-9SV-10SV-11SV-12SV-14SV-15SV-1313592 SLOVER AVENUEFONTANA, CALIFORNIAALERE PROPERTY GROUP LLC100 BAYVIEW CIRCLE, SUITE 310NEWPORT BEACH, CALIFORNIAGOOGLE AERIAL IMAGE SHOWINGSOIL VAPOR SAMPLE LOCATIONSFIGURE NO.SCALE:DATE:SHEET TITLE:PROJECT TITLE:CLIENT:ENVIRONMENTAL CONSULTANTSAPP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20211" = 180'201221034.00 T2J.VARGASJ.VARGAST.WATKINSLONG BEACHJ.RAUZONSOIL GAS (1st GENERATION)SCS ENGINEERSLEGENDPROPERTY LINE Phase II – 13592 Slover Avenue www.scsengineers.com Appendix A H&P Laboratory Report SCS Engineers - Long Beach Long Beach, CA 90806-6816 3900 Kilroy Airport Way, Suite 100 Justin Rauzon Enclosed is the analytical report for the above referenced project. The data herein applies to samples as received by H&P Mobile Geochemistry, Inc. on 15-Mar-21 which were analyzed in accordance with the attached Chain of Custody record(s). The results for all sample analyses and required QA/QC analyses are presented in the following sections and summarized in the documents: •Sample Summary •Case Narrative (if applicable) •Sample Results •Quality Control Summary •Notes and Definitions / Appendix •Chain of Custody •Sampling Logs (if applicable) Unless otherwise noted, I certify that all analyses were performed and reviewed in compliance with our Quality Systems Manual and Standard Operating Procedures. This report shall not be reproduced, except in full, without the written approval of H&P Mobile Geochemistry, Inc. We at H&P Mobile Geochemistry, Inc. sincerely appreciate the opportunity to provide analytical services to you on this project. If you have any questions or concerns regarding this analytical report, please contact me at your convenience at 760-804-9678. Sincerely, 17 March 2021 Lisa Eminhizer Laboratory Director H&P Mobile Geochemistry, Inc. is certified under the California ELAP and the National Environmental Laboratory Accreditation Conference (NELAC) for the fields of proficiency and analytes listed on those certificates. H&P is approved as an Environmental Testing Laboratory in accordance with the DoD-ELAP Program and ISO/IEC 17025:2005 programs for the fields of proficiency and analytes included in the certification process and to the extent offered by the accreditation agency. Unless otherwise noted, accreditation certificate numbers, expiration of certificates, and scope of accreditation can be found at: www.handpmg.com/about/certifications. Fields of services and analytes contained in this report that are not listed on the certificates should be considered uncertified or unavailable for certification. Client Project: 01221034.00 T2 / Fontana H&P Project: SCS031621-10 Dear Justin Rauzon: P 1.800.834.9888 / 760.804.9678 F 760.804.9159 W handpmg.com 2470 Impala Drive, Carlsbad, CA 92010 & Field Office - Signal Hill, CAQuality. Accuracy. Experience. Geochemistry Inc.Mobile Page 1 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Sample ID Laboratory ID Matrix Date Sampled ANALYTICAL REPORT FOR SAMPLES Date Received SV-6-5 E103048-01 Vapor 15-Mar-21 15-Mar-21 SV-6-5 REP E103048-02 Vapor 15-Mar-21 15-Mar-21 SV-4-5 E103048-03 Vapor 15-Mar-21 15-Mar-21 SV-5-5 E103048-04 Vapor 15-Mar-21 15-Mar-21 SV-2-5 E103048-05 Vapor 15-Mar-21 15-Mar-21 SV-3-5 E103048-06 Vapor 15-Mar-21 15-Mar-21 SV-11-5 E103048-07 Vapor 15-Mar-21 15-Mar-21 SV-12-5 E103048-08 Vapor 15-Mar-21 15-Mar-21 SV-13-5 E103048-09 Vapor 15-Mar-21 15-Mar-21 SV-15-5 E103048-10 Vapor 15-Mar-21 15-Mar-21 SV-14-5 E103048-11 Vapor 15-Mar-21 15-Mar-21 SV-10-5 E103048-12 Vapor 15-Mar-21 15-Mar-21 SV-1-5 E103048-13 Vapor 15-Mar-21 15-Mar-21 SV-9-5 E103048-14 Vapor 15-Mar-21 15-Mar-21 SV-7-5 E103048-15 Vapor 15-Mar-21 15-Mar-21 SV-8-5 E103048-16 Vapor 15-Mar-21 15-Mar-21 Page 2 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. DETECTIONS SUMMARY Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-01SV-6-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-02SV-6-5 REP Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-03SV-4-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-04SV-5-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-05SV-2-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-06SV-3-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-07SV-11-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-08SV-12-5 Notes Reporting No Detections Reported Page 3 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-09SV-13-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-10SV-15-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-11SV-14-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-12SV-10-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-13SV-1-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-14SV-9-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-15SV-7-5 Notes Reporting No Detections Reported Sample ID:Laboratory ID: Analyte Result Limit Units Method E103048-16SV-8-5 Notes Reporting No Detections Reported Page 4 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-6-5 (E103048-01) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 5 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-6-5 (E103048-01) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"100 %75-125Surrogate: Dibromofluoromethane """"105 %75-125Surrogate: 1,2-Dichloroethane-d4 """"95.4 %75-125Surrogate: Toluene-d8 """"96.1 %75-125Surrogate: 4-Bromofluorobenzene Page 6 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-6-5 REP (E103048-02) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 7 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-6-5 REP (E103048-02) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"96.2 %75-125Surrogate: Dibromofluoromethane """"103 %75-125Surrogate: 1,2-Dichloroethane-d4 """"92.4 %75-125Surrogate: Toluene-d8 """"86.4 %75-125Surrogate: 4-Bromofluorobenzene Page 8 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-4-5 (E103048-03) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 9 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-4-5 (E103048-03) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"95.9 %75-125Surrogate: Dibromofluoromethane """"95.3 %75-125Surrogate: 1,2-Dichloroethane-d4 """"96.5 %75-125Surrogate: Toluene-d8 """"95.4 %75-125Surrogate: 4-Bromofluorobenzene Page 10 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-5-5 (E103048-04) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 11 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-5-5 (E103048-04) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"106 %75-125Surrogate: Dibromofluoromethane """"93.6 %75-125Surrogate: 1,2-Dichloroethane-d4 """"95.5 %75-125Surrogate: Toluene-d8 """"86.5 %75-125Surrogate: 4-Bromofluorobenzene Page 12 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-2-5 (E103048-05) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 13 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-2-5 (E103048-05) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"105 %75-125Surrogate: Dibromofluoromethane """"87.8 %75-125Surrogate: 1,2-Dichloroethane-d4 """"98.5 %75-125Surrogate: Toluene-d8 """"91.7 %75-125Surrogate: 4-Bromofluorobenzene Page 14 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-3-5 (E103048-06) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 15 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-3-5 (E103048-06) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"103 %75-125Surrogate: Dibromofluoromethane """"106 %75-125Surrogate: 1,2-Dichloroethane-d4 """"96.8 %75-125Surrogate: Toluene-d8 """"97.0 %75-125Surrogate: 4-Bromofluorobenzene Page 16 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-11-5 (E103048-07) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 17 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-11-5 (E103048-07) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"110 %75-125Surrogate: Dibromofluoromethane """"101 %75-125Surrogate: 1,2-Dichloroethane-d4 """"95.3 %75-125Surrogate: Toluene-d8 """"91.7 %75-125Surrogate: 4-Bromofluorobenzene Page 18 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-12-5 (E103048-08) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 19 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-12-5 (E103048-08) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"91.9 %75-125Surrogate: Dibromofluoromethane """"107 %75-125Surrogate: 1,2-Dichloroethane-d4 """"93.9 %75-125Surrogate: Toluene-d8 """"88.9 %75-125Surrogate: 4-Bromofluorobenzene Page 20 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-13-5 (E103048-09) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 21 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-13-5 (E103048-09) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"95.7 %75-125Surrogate: Dibromofluoromethane """"101 %75-125Surrogate: 1,2-Dichloroethane-d4 """"93.9 %75-125Surrogate: Toluene-d8 """"88.8 %75-125Surrogate: 4-Bromofluorobenzene Page 22 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-15-5 (E103048-10) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 23 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-15-5 (E103048-10) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"97.3 %75-125Surrogate: Dibromofluoromethane """"102 %75-125Surrogate: 1,2-Dichloroethane-d4 """"93.3 %75-125Surrogate: Toluene-d8 """"97.4 %75-125Surrogate: 4-Bromofluorobenzene Page 24 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-14-5 (E103048-11) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 25 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-14-5 (E103048-11) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"104 %75-125Surrogate: Dibromofluoromethane """"95.6 %75-125Surrogate: 1,2-Dichloroethane-d4 """"102 %75-125Surrogate: Toluene-d8 """"93.4 %75-125Surrogate: 4-Bromofluorobenzene Page 26 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-10-5 (E103048-12) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 27 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-10-5 (E103048-12) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"108 %75-125Surrogate: Dibromofluoromethane """"99.4 %75-125Surrogate: 1,2-Dichloroethane-d4 """"97.1 %75-125Surrogate: Toluene-d8 """"95.0 %75-125Surrogate: 4-Bromofluorobenzene Page 28 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-1-5 (E103048-13) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 29 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-1-5 (E103048-13) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"102 %75-125Surrogate: Dibromofluoromethane """"90.1 %75-125Surrogate: 1,2-Dichloroethane-d4 """"97.7 %75-125Surrogate: Toluene-d8 """"90.7 %75-125Surrogate: 4-Bromofluorobenzene Page 30 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-9-5 (E103048-14) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 31 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-9-5 (E103048-14) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"100 %75-125Surrogate: Dibromofluoromethane """"97.3 %75-125Surrogate: 1,2-Dichloroethane-d4 """"97.4 %75-125Surrogate: Toluene-d8 """"95.7 %75-125Surrogate: 4-Bromofluorobenzene Page 32 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-7-5 (E103048-15) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 33 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-7-5 (E103048-15) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"110 %75-125Surrogate: Dibromofluoromethane """"108 %75-125Surrogate: 1,2-Dichloroethane-d4 """"97.6 %75-125Surrogate: Toluene-d8 """"89.7 %75-125Surrogate: 4-Bromofluorobenzene Page 34 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-8-5 (E103048-16) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.041,1-Difluoroethane (LCC)0.40ND """"""Dichlorodifluoromethane (F12)0.40ND """"""Chloromethane 0.40ND """"""Vinyl chloride 0.040ND """"""Bromomethane 0.40ND """"""Chloroethane 0.40ND """"""Trichlorofluoromethane (F11)0.40ND """"""1,1-Dichloroethene 0.40ND """"""1,1,2 Trichlorotrifluoroethane (F113)0.40ND """"""Methylene chloride (Dichloromethane)0.40ND """"""Methyl tertiary-butyl ether (MTBE)0.40ND """"""trans-1,2-Dichloroethene 0.40ND """"""1,1-Dichloroethane 0.40ND """"""2,2-Dichloropropane 0.40ND """"""cis-1,2-Dichloroethene 0.40ND """"""Chloroform 0.080ND """"""Bromochloromethane 0.40ND """"""1,1,1-Trichloroethane 0.40ND """"""1,1-Dichloropropene 0.40ND """"""Carbon tetrachloride 0.080ND """"""1,2-Dichloroethane (EDC)0.080ND """"""Benzene 0.080ND """"""Trichloroethene 0.080ND """"""1,2-Dichloropropane 0.40ND """"""Bromodichloromethane 0.40ND """"""Dibromomethane 0.40ND """"""cis-1,3-Dichloropropene 0.40ND """"""Toluene 0.80ND """"""trans-1,3-Dichloropropene 0.40ND """"""1,1,2-Trichloroethane 0.40ND """"""1,2-Dibromoethane (EDB)0.40ND """"""1,3-Dichloropropane 0.40ND """"""Tetrachloroethene 0.080ND """"""Dibromochloromethane 0.40ND """"""Chlorobenzene 0.080ND """"""Ethylbenzene 0.40ND """"""1,1,1,2-Tetrachloroethane 0.40ND """"""m,p-Xylene 0.40ND Page 35 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Volatile Organic Compounds by H&P 8260SV H&P Mobile Geochemistry, Inc. Result Analyte Limit Reporting Units Dilution Batch Prepared Analyzed Method Notes Factor SV-8-5 (E103048-16) Vapor Sampled: 15-Mar-21 Received: 15-Mar-21 H&P 8260SV16-Mar-21 16-Mar-21ug/l EC116070.04o-Xylene 0.40ND """"""Styrene 0.40ND """"""Bromoform 0.40ND """"""Isopropylbenzene (Cumene)0.40ND """"""1,1,2,2-Tetrachloroethane 0.40ND """"""1,2,3-Trichloropropane 0.40ND """"""n-Propylbenzene 0.40ND """"""Bromobenzene 0.40ND """"""1,3,5-Trimethylbenzene 0.40ND """"""2-Chlorotoluene 0.40ND """"""4-Chlorotoluene 0.40ND """"""tert-Butylbenzene 0.40ND """"""1,2,4-Trimethylbenzene 0.40ND """"""sec-Butylbenzene 0.40ND """"""p-Isopropyltoluene 0.40ND """"""1,3-Dichlorobenzene 0.40ND """"""1,4-Dichlorobenzene 0.40ND """"""n-Butylbenzene 0.40ND """"""1,2-Dichlorobenzene 0.40ND """"""1,2-Dibromo-3-chloropropane 4.0ND """"""1,2,4-Trichlorobenzene 0.40ND """"""Hexachlorobutadiene 0.40ND """"""Naphthalene 0.080ND """"""1,2,3-Trichlorobenzene 0.40ND """"101 %75-125Surrogate: Dibromofluoromethane """"100 %75-125Surrogate: 1,2-Dichloroethane-d4 """"95.3 %75-125Surrogate: Toluene-d8 """"88.2 %75-125Surrogate: 4-Bromofluorobenzene Page 36 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by H&P 8260SV - Quality Control H&P Mobile Geochemistry, Inc. Batch EC11607 - EPA 5030 Blank (EC11607-BLK1)Prepared & Analyzed: 16-Mar-21 1,1-Difluoroethane (LCC)ug/l0.40ND Dichlorodifluoromethane (F12)"0.40ND Chloromethane "0.40ND Vinyl chloride "0.040ND Bromomethane "0.40ND Chloroethane "0.40ND Trichlorofluoromethane (F11)"0.40ND 1,1-Dichloroethene "0.40ND 1,1,2 Trichlorotrifluoroethane (F113)"0.40ND Methylene chloride (Dichloromethane)"0.40ND Methyl tertiary-butyl ether (MTBE)"0.40ND trans-1,2-Dichloroethene "0.40ND 1,1-Dichloroethane "0.40ND 2,2-Dichloropropane "0.40ND cis-1,2-Dichloroethene "0.40ND Chloroform "0.080ND Bromochloromethane "0.40ND 1,1,1-Trichloroethane "0.40ND 1,1-Dichloropropene "0.40ND Carbon tetrachloride "0.080ND 1,2-Dichloroethane (EDC)"0.080ND Benzene "0.080ND Trichloroethene "0.080ND 1,2-Dichloropropane "0.40ND Bromodichloromethane "0.40ND Dibromomethane "0.40ND cis-1,3-Dichloropropene "0.40ND Toluene "0.80ND trans-1,3-Dichloropropene "0.40ND 1,1,2-Trichloroethane "0.40ND 1,2-Dibromoethane (EDB)"0.40ND 1,3-Dichloropropane "0.40ND Tetrachloroethene "0.080ND Dibromochloromethane "0.40ND Page 37 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by H&P 8260SV - Quality Control H&P Mobile Geochemistry, Inc. Batch EC11607 - EPA 5030 Blank (EC11607-BLK1)Prepared & Analyzed: 16-Mar-21 Chlorobenzene ug/l0.080ND Ethylbenzene "0.40ND 1,1,1,2-Tetrachloroethane "0.40ND m,p-Xylene "0.40ND o-Xylene "0.40ND Styrene "0.40ND Bromoform "0.40ND Isopropylbenzene (Cumene)"0.40ND 1,1,2,2-Tetrachloroethane "0.40ND 1,2,3-Trichloropropane "0.40ND n-Propylbenzene "0.40ND Bromobenzene "0.40ND 1,3,5-Trimethylbenzene "0.40ND 2-Chlorotoluene "0.40ND 4-Chlorotoluene "0.40ND tert-Butylbenzene "0.40ND 1,2,4-Trimethylbenzene "0.40ND sec-Butylbenzene "0.40ND p-Isopropyltoluene "0.40ND 1,3-Dichlorobenzene "0.40ND 1,4-Dichlorobenzene "0.40ND n-Butylbenzene "0.40ND 1,2-Dichlorobenzene "0.40ND 1,2-Dibromo-3-chloropropane "4.0ND 1,2,4-Trichlorobenzene "0.40ND Hexachlorobutadiene "0.40ND Naphthalene "0.080ND 1,2,3-Trichlorobenzene "0.40ND "2.00 75-125Surrogate: Dibromofluoromethane 98.91.98 "2.00 75-125Surrogate: 1,2-Dichloroethane-d4 1032.07 "2.00 75-125Surrogate: Toluene-d8 93.71.87 "2.00 75-125Surrogate: 4-Bromofluorobenzene 92.21.84 Page 38 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by H&P 8260SV - Quality Control H&P Mobile Geochemistry, Inc. Batch EC11607 - EPA 5030 LCS (EC11607-BS1)Prepared & Analyzed: 16-Mar-21 Dichlorodifluoromethane (F12)ug/l 5.00 70-13070.40.503.5 Vinyl chloride "5.00 70-1301130.0505.6 Chloroethane "5.00 70-1301220.506.1 Trichlorofluoromethane (F11)"5.00 QL-1H70-1301320.506.6 1,1-Dichloroethene "5.00 70-13097.30.504.9 1,1,2 Trichlorotrifluoroethane (F113)"5.00 70-13092.00.504.6 Methylene chloride (Dichloromethane)"5.00 70-13096.80.504.8 trans-1,2-Dichloroethene "5.00 70-13098.70.504.9 1,1-Dichloroethane "5.00 70-13085.90.504.3 cis-1,2-Dichloroethene "5.00 70-1301030.505.1 Chloroform "5.00 70-1301030.105.2 1,1,1-Trichloroethane "5.00 70-13077.60.503.9 Carbon tetrachloride "5.00 70-13074.30.103.7 1,2-Dichloroethane (EDC)"5.00 70-1301020.105.1 Benzene "5.00 70-13099.30.105.0 Trichloroethene "5.00 70-1301060.105.3 Toluene "5.00 70-13097.21.04.9 1,1,2-Trichloroethane "5.00 70-1301070.505.3 Tetrachloroethene "5.00 70-13092.70.104.6 Ethylbenzene "5.00 70-13098.50.504.9 1,1,1,2-Tetrachloroethane "5.00 70-13079.00.503.9 m,p-Xylene "10.0 70-13097.00.509.7 o-Xylene "5.00 70-13093.70.504.7 1,1,2,2-Tetrachloroethane "5.00 QL-1H70-1301380.506.9 "2.50 75-125Surrogate: Dibromofluoromethane 97.62.44 "2.50 75-125Surrogate: 1,2-Dichloroethane-d4 97.12.43 "2.50 75-125Surrogate: Toluene-d8 1022.54 "2.50 75-125Surrogate: 4-Bromofluorobenzene 87.82.19 Page 39 of 40 Project: Project Number: Project Manager: Reported: SCS Engineers - Long Beach 3900 Kilroy Airport Way, Suite 100 SCS031621-10 01221034.00 T2 / Fontana Justin RauzonLong Beach, CA 90806-6816 17-Mar-21 11:57 2470 Impala Drive Carlsbad, CA 92010 760-804-9678 Phone 760-804-9159 Fax H&P Mobile Geochemistry Inc. Notes and Definitions QL-1H The LCS and/or LCSD recoveries fell above the established control specifications for this analyte. Any result for this compound is qualified and should be considered biased high. Percent Recovery Relative Percent DifferenceRPD %REC Method Detection LimitMDL Analyte NOT DETECTED at or above the reporting limitND Leak Check CompoundLCC Appendix H&P Mobile Geochemistry, Inc. is approved as an Environmental Testing Laboratory and Mobile Laboratory in accordance with the DoD-ELAP Program and ISO/IEC 17025:2005 programs through PJLA, accreditation number 69070 for EPA Method TO-15, EPA Method 8260B and H&P 8260SV. H&P is approved by the State of California as an Environmental Laboratory and Mobile Laboratory in conformance with the Environmental Laboratory Accreditation Program (ELAP) for the category of Volatile and Semi-Volatile Organic Chemistry of Hazardous Waste, certification numbers 2740, 2741, 2743 & 2745. H&P is approved by the State of Louisiana Department of Environmental Quality under the National Environmental Laboratory Accreditation Conference (NELAC) certification number 04138 The complete list of stationary and mobile laboratory certifications along with the fields of testing (FOTs) and analyte lists are available at www.handpmg.com/about/certifications. All soil results are reported in wet weight. Page 40 of 40 2470 Impala Drive, Carlsbad, CA 92010 & Field Office - Signal Hill, CA W handpmg.com E info@handpmg.com P 760.804.9678 F 760.804.9159 DATE:3/1771 Page ) of 2— Mobile •Z Geochemistry, Inc. VAPOR / AIR Chain of Custody Lab Client and Project Information Sample Receipt (Lab Use Only) Lab ClientlConsultant: ce- Sv 611.0 VN ec v'S Project Name / #: 01'72)03Li. 007 T 2- Date Redd: n I 1 &dal Control #:m / fth }...._ Lob Client 12rojecttla_n_ager. . I U gin VI KA ki 2-0 yl tEggellation: sLovcv p_vc., fovtavicA, cf.. H&P Project # c,,//ezi -/D Address:i 4 i t if. 6.1 A.; v r eir .1 AAy Suite I bl-) Report E-Mail(s). Tlioet-1-14.1,-..s .z “,senT vi-cci--6 . co fry) \3 ‘2 au 2---ON toli8lt Lab Work Order # EA 60 Li g Lab Client City, State, Zip: Sample Intact: See Notes Below • Yes II No MI GO Yl.iolICA .e.a. C.11 GA G10 flO tiO Phone Num er: t, Slo 2- ,.A) f) -A 3-7 -,1 Receipt Gauge ID: Temp: Reporting Requirements Turnaround Time Sampler Information Outside Lab: NStandard Report q Level III q Excel EDD q Other EDD: q Standard (7 days for preliminary report, 10 days for final report) ID Rush (specify): 2-""/ S Sampler(s)43 vi'lL Receipt Notes/Tracking #: Lab PM Initials: VA-' III Level IV Signature ----, q CA Geotracker Global ID: Date: / 3" 7.-j Additional Instructions to Laboratory: U ow \ ki_ (ux ii/664X, tAA1114 (14 * Preferred VOC units (please choose one): Viiig/L q µg/m3 q ppbv q ppmv VOCs Standard Full List I f 8260SV E TO-15 vi 'VOCs Short List / Project List q 8260SV 0 TO-15 Oxygenates q 8260SV 0 TO-15 Naphthalene q 8260SV E TO-15 TPHv as Gas q 8260SVm 0 TO-15m Aromatic/Aliphatic Fractions q 8260SVm 0 TO-15m Leak Check Compound ' FA 0 IPA q He 1 Methane by EPA 8015m Fixed Gases by ASTM D1945 El CO2 q 02 E N2 SAMPLE NAME FIELD POINT NAME (if applicable) DATE -. mm/dd/yy . TIME 24kir clock SAMPLE TYPE Indoor Air (IA), Ambient Air (AA), Subslab (SS), Soil Vapor (SV) CONTAINER SIZE & TYPE 400mL/11/6L Summa, Tedlar, Tube, etc. CONTAINER ID (##4) Lab use only: Receipt Vac 4V- 4 _.------ c3A-0) 12-it 4y .00-)2_ 5---zz- ,c12- V - -5- g6P L );-- 7. z-ic -5/ -249 e-vd---- 4'52 -ge ___, l .../ _ s-- O3 is- 2.. i.Z53 --)2--- ----- - /a.7 K )( ,-,V.._ s - 5 p5h5/7) /-'/I 4 alliPPE_ <-53 -22 ,L___, 51/ - 2 - g.- 0 57.1 / IV 2giv)L-- .C.2 (1/1 - -`" -. v3 /5---M j3 2-3- •414.2;.--- 5".2 -I.6) .: V - - &V 2./p4,-,-72--- 5-7-1, -52 ,,____________— L - 1 2- — -S ;,5.17c-ic1 i: 1 r-3'-?'1-T-- 3 .;,pA.,7."-- 5-1 !-1/ 1,11 - I-3 ---- 5 G5 /5 ;I 116 1/i/ .44,1--- 51 -5-.57 757- 16- - 4.5- //57/ 1 '219-‘-,,,./----sl .-1, Ap. .,•d/Relinqu. hed by: lit / Com.any: Dat Time: , a . Received by: Company Date: Time: . ). 2-/ l',,) Ap d nquished by ". Company: D. e: Time, Received by: "... Compan . Date Time: Appro ed/Relinqu shed by: Company: Date: Time' Received by: Company: Date: Time: _... 'Approval constitutes as authonzabon to proceed with analysis and acceptance of conditions on back Appendix 6A1, Rev 1/9/2 1 , Effective p Mobile Geochemistry, Inc. 2470 Impala Drive, Carlsbad, CA 92010 & Field Office - Signal Hill, CA W handpmg.com E info©handpmg.com P 760.804.9678 F 760.804.9159 DATE: */ -b-j Page 2.-of VAPOR I AIR Chain of Custody Lab Client and Project Information Outside Lab: Sample Receipt (Lab Use Only) Date Rec'd: iLii..)4 ( .____ Control #1 l io ) c Lab Client/Consultant: SC S snect ince_la- s Project Name / 0 l '2-2. 1 0 3t4. b b 7 H&P Project # sa 0 Loa], - i0 , _ab Client Project 11,pager: .. \) S-t-N V't Vo.%-) 3-o rl Pro ect Location: 1 , 7_ ovt-t- ' - or ... r _ Lab Work Order # Lab Client Address.. 56l 00 ... t L Ify‘Ni A i r pc) r 1 (A-)ca...{ i le 100 ,cL., Report E-Mail(s): Sample Intact: E Yes • No • See Notes Below [ab Client Cityjtate, Zip.. L.- °Asa p ot, el co i 12.4 u 2c. v-) -Th. c c 5 Cr fy in.cyri co Receipt Gauge 10: Temp: t hitie.i,Smyr:..3 Oa.- ... (2) 32.2_, -TIN in C G1-1-6 Reporting Requirements Turnaround Time Sampler Information Receipt Notes/Tracking #: Lab PM Ini ials: ®'Standard Report q Level III q Level IV q Standard (7 days for preliminary • Sampler(s): I V.V. ) be" q Excel EDD q Other EDD: report, 10 days for final report) Signature q CA Geotracker Global ID: al Rush (specify): j---1/4r, Date: I is-- 7, Additional Instructions to Laboratory: \AL IA 4 _ i., (4 044iik _,____ i mc -a\PPt * Preferred VOC units (please choose one): V pg/L q ptg/M3 q ppbv q ppmv VOCs6, Standard Full List '8260SV q TO-15 toy VOCs Short List / Project List ri 8260SV 0 TO-15 Oxygenates q 8260SV q TO-15 [Naphthalene q 8260SV q TO-15 -A II u) m 3) „, c, a, . CV > co x f-- CI -1-,. m - ,E ut a 2 i_ .1,5 III .=n 0 .2-E •TE (.) . ._ c.) -1-,., . C,I E co . ::(- 1 I 2 ,.., 0- E Cj m t 4) u -,c . = < a. m U_ LL A . 00 < Cl_ w f,- 0, c ., E 2 m - I- in en < >, ,c..; ,x, s•-• w • °4 0 ,--,1 0 -0 C) Li: • SAMPLE NAME FIELD POINT NAME (if applicable) DATE mm/dd/yy TIME 24hr clock SAMPLE TYPE Indoor Air (IA), Ambient Air (M), Subslab (SS), Soil Vapor (SV) CONTAINER SIZE & TYPE 400mU1 U6L Summa, Tedlar, Tube, etc. CONTAINER ID (###) Lab use only: Receipt Vac VI- 1 I-) - ‘L) Oik i") /1110 407 Z't9 i- SYPt LtD; /-15\/ -IP -- ---- /73 517) 143L -,i0V---.1-- 520 "/2 , V- 1 —r 6" p !LA i-- -I -›<_ s 1 74 1- 7C(Y,-"-,57Y— 0 gi ',Is. Ap ed/R• I gum -. Air "or Company. Data:Time. : ALM. .4.,,,,,-0._1,04 .. Allillp._ Received by: Company Date. Time: A • • -4'7 qui> 7 7411, V Company, D. e: Time: Received by: Company. Date. Time App .ve dingo's d by Company: Date: Time: Received by: Company: Date Time: n,,,,....,,4N A AI POI/ 1/0/9/119 Fffentive 1/21/2019 Approval constitutes as authonzation to proceed with analysis and acceptance of conditions on back III) Mobile g Geochemistry Inc. 2470 Impala Drive, Carlsbad, CA 92010 Los Angeles Field Office in Signal Hill, CA Ph: 800-834-9888 www.handpmg.com • H&P 8260SV (Modified EPA 8260B) Analyte CAS No. Low RL* Vapor (pg/L) Low RL* Vapor (µg/m 3 ) Dichlorodifluoromethane (F12) 75-71-8 0.4 400 Chloromethane 74-87-3 0.4 400 Vinyl chloride 75-01-4 0.04 40 Bromomethane 74-83-9 0.4 400 Chloroethane 75-00-3 0.4 400 Trichlorofluoromethane (F11) 75-69-4 0.4 400 1,1-Dichloroethene 75-35-4 0.4 400 1,1,2-Trichlorotrifluoroethane (F113) 76-13-1 0.4 400 Methylene chloride (Dichloromethane) 75-09-2 0.4 400 Methyl tertiary-butyl ether (MTBE) 1634-04-4 0.4 400 trans-1,2-Dichloroethene 156-60-5 0.4 400 1,1-Dichloroethane 75-34-3 0.4 400 2,2-Dichloropropane 594-20-7 0.4 400 cis-1,2-Dichloroethene 156-59-2 0.4 400 Bromochloromethane 74-97-5 0.4 400 Chloroform 67-66-3 0.08 80 1,1,1-Trichloroethane 71-55-6 0.4 400 1,1-Dichloropropene 563-58-6 0.4 400 Carbon tetrachloride 56-23-5 0.08 80 1,2-Dichloroethane (EDC) 107-06-2 0.08 80 Benzene 71-43-2 0.08 80 Trichloroethene 79-01-6 0.08 80 1,2-Dichloropropane 78-87-5 0.4 400 Dibromomethane 74-95-3 0.4 400 Bromodichloromethane 75-27-4 0.4 400 cis-1,3-Dichloropropene 10061-01-5 0.4 400 Toluene 108-88-3 0.8 800 trans-1,3-Dichloropropene 10061-02-6 0.4 400 1,1,2-Trichloroethane 79-00-5 0.4 400 1,3-Dichloropropane 142-28-9 0.4 400 Tetrachloroethene 127-18-4 0.08 80 Dibromochloromethane 124-48-1 0.4 400 1,2-Dibromoethane (EDB) 106-93-4 0.4 400 Chlorobenzene 108-90-7 0.08 80 1,1,1,2-Tetrachloroethane 630-20-6 0.4 400 Ethylbenzene 100-41-4 0.4 400 m,p-Xylene 179601-23-1 0.4 400 o-Xylene 95-47-6 0.4 400 Styrene 100-42-5 0.4 400 Bromoform 75-25-2 0.4 400 Isopropylbenzene (Cumene) 98-82-8 0.4 400 1,1,2,2-Tetrachloroethane 79-34-5 0.4 400 n-Propylbenzene 103-65-1 0.4 400 1,2,3-Trichloropropane 96-18-4 0.4 400 Bromobenzene 108-86-1 0.4 400 2-Chlorotoluene 95-49-8 0.4 400 1,3,5-Trimethylbenzene 108-67-8 0.4 400 4-Chlorotoluene 106-43-4 0.4 400 H&P 8260SV Rev 0, 5/12/16 • IR Mobile Geochemistry Inc. 2470 Impala Drive, Carlsbad, CA 92010 Los Angeles Field Office in Signal Hill, CA Ph: 800-834-9888 www.handpmg.com H&P 8260SV (Modified EPA 8260B) Analyte CAS No. Low RL* Vapor (ug/L) Low RL* Vapor (pg/m 3 ) tert-Butylbenzene 98-06-6 0.4 400 1,2,4-Trimethylbenzene 95-63-6 0.4 400 sec-Butylbenzene 135-98-8 0.4 400 p-Isopropyltoluene 99-87-6 0.4 400 1,3-Dichlorobenzene 541-73-1 0.4 400 1,4-Dichlorobenzene 106-46-7 0.4 400 n-Butylbenzene 104-51-8 0.4 400 1,2-Dichlorobenzene 95-50-1 0.4 400 1,2-Dibromo-3-chloropropane 96-12-8 4.0 4000 1,2,4-Trichlorobenzene 120-82-1 0.4 400 Hexachlorobutadiene 87-68-3 0.4 400 Naphthalene 91-20-3 0.08 80 1,2,3-Trichlorobenzene 87-61-6 0.4 400 Leak Check Comvound 1,1-Difluoroethane 75-37-6 0.4 400 *NOTE: 25cc sample for Low RL • H&P 8260SV Rev 0, 5/12/16