Imported Soil at Ladera Linda Fields Clean and Safe

January 206 Imported Soil at Ladera Linda Fields Clean and Safe Soil tests performed by an independent environmental consultant show that the soil brought to the Ladera Linda soccer field area by Palos Verdes American Youth Soccer Organization (PV AYSO) is clean. The soil satisfies the LAUSD s safe schools soil criteria, which are very strict standards designed to ensure the safety of students. A Palos Verdes Peninsula Unified School District (PVPUSD) legal representative contacted PV AYSO and requested that PV AYSO conduct soil sampling on the soil, which is intended for future use leveling the fields. PV AYSO immediately agreed to do so at its cost. PV AYSO offered three qualified environmental consultants that had no prior affiliation with PV AYSO. PVPUSD s legal representative picked one of the offered consultants, and the soil sampling and analyses were performed by that consultant. The selected consultant collected soil samples and analyzed the soil samples in accordance with LAUSD s updated Section 0440 Environmental Import/Export Materials Testing (revised August, 2008) and federal and state law and requirements. All soil analyses indicated no contaminants present above any relevant environmental standards. The standards used were extremely high because kids safety is the PVPUSD and PV AYSO s highest priority. PVPUSD and PV AYSO now consider this matter closed. PVPUSD and PV AYSO remain committed to providing world class opportunities for our children and have worked hand in hand to resolve any concerns regarding the soil brought to the Ladera Linda soccer field area. The two organizations look forward to continuing their long tradition of partnership for the betterment of our youth for years to come. Sincerely, Brent Daniel Regional Commissioner PV AYSO Region 0 Dr. Don Austin Superintendent Palos Verdes Peninsula Unified School District

LEYMASTER ENVIRONMENTAL CONSULTING, LLC SOILS REPORT (,00 Cubic Yards) Upper Ladera Linda Park 3220 Forrestal Drive, Rancho Palos Verde, CA 90275 INTRODUCTION On December 4, 205, at the request of PV AYSO, Leymaster Environmental Consulting, LLC (LEC) collected soil samples for laboratory analyses from approximately,00 cubic yards (CYs) of soil imported to Upper Ladera Linda Park in Ranch Palos Verde, CA 90275 (Figure Local Area Map). The approximately,00 cubic yards of soil are located on an undeveloped terrace above the existing soccer fields (Figure ). Sampling was conducted in conformance with the Los Angeles Unified School District s (LAUSD) Section 0-4524 Environmental Import/Export Materials Testing guidelines dated October, 20. Soil acceptance criteria are based on the LAUSD s Section 0-4524, California Human Health Screening Levels (CHHSLs) and USEPA Region IX Soil Screening Levels (SSLs). Based on the analytical results, the,00 CYs of soil sampled are acceptable for use at the Upper Ladera Linda Park. SAMPLE COLLECTION All samples were collected by Charles F. Lindeman, an Environmental Professional, REA-II No. 2025, under California s former Registered Environmental Assessor program. Based on Table (Minimum Sampling Frequency) of Section 0-4524 Environmental Import/Export Materials Testing (LAUSD, October, 20), five soil samples were collected and analyzed from the estimated,00 CYs. Four soil samples were collected from soils spread across an area approximately 70 feet by 350 feet (SS- through SS-4), and one soil sample (SS- 5) collected from approximately 75 CYs stockpiled at the western end of the terrace. Sampling Methodology To ensure representative sample results, both single-point, non-composited (SS- through SS-5) and three-point composited soil samples (SS- A-B-C through SS-5 A-B-C) were collected from locations spaced across the imported soils (Figure 2 Soil Sample Locations). No blind duplicate sample was collected. 5500 East Atherton Street, Suite 20 Long Beach, CA 9085 (562) 799-9866 FAX (562) 799-963

SOILS REPORT (,00 CYs) Upper Ladera Linda Park 3220 Forrestal Drive, Rancho Palos Verde, CA 90275 December 23, 205 Page 2 of 5 Soil samples collected for volatile organic compound ( VOC ) analysis by EPA Method 8260B (i.e., SS- through SS-5) were collected in accordance with EPA Preparation Method 5035 using 25-gram and 5-gram En Core samplers. The single-point samples for VOCs analyses were collected from depths of approximately six to nine inches below ground surface (bgs) spaced across the area of the imported soils (Figure 2). Soil samples collected from for metals, petroleum hydrocarbons, Semi-VOCs, PCBs, pesticides and herbicides analyses (i.e., non-vocs analyses) were collected into pre-cleaned, brass sleeves from depths of approximately six to nine inches bgs, two to three feet north ( A ), southeast ( B ) and southwest ( C ) of the single-point VOC sample locations. After collection, the ends of the brass sample sleeves were covered with Teflon sheets and plastic end caps affixed. All soil samples were properly labeled (e.g., SS--A, SS--B and SS--C) and sealed in plastic bags, placed in an ice-cooled container and immediately transported to Asset Laboratories (ELAP 2676) located at 060 Artesia Boulevard, Suite C, Cerritos, CA 90703, for analysis. Standard Chain-of-Custody protocols were maintained on all samples. The Chain-of-Custody Record was initiated in the field by LEC. Each time responsibility for custody of the samples changed, the receiving and relinquishing custodians signed the record and recorded the date and time of transfer of the samples. The laboratory signed for the receipt of the samples and returned a copy of the Chain-of-Custody Record to LEC. The Laboratory Report of Analytical Results and Chain-of- Custody Record are contained in Attachment A. LABORATORY ANALYSES The soil samples were analyzed for the following based Part 3.02 (E) of the Los Angeles Unified School District s (LAUSD) Section 0-4524 Environmental Import/Export Materials Testing (October 200):. Total Petroleum Hydrocarbons (TPH as diesel and oil) by EPA Method 805M 2. VOCs and TPH-gasoline by EPA Method 8260B (EPA Preparation Method 5035) 3. Polychlorinated Biphenyls by EPA Method 8082 4. Semi-Volatile Organic Compounds (SVOCs) by EPA Method 8270C 5. Organochlorine Pesticides (OCPs) by EPA Method 808A 6. Organophosphorus Pesticides (OPPs) by EPA Method 84A 7. Chlorinated Herbicides by EPA Method 85A 8. Title 22 Metals by EPA Methods 600B/7470B 9. Hexavalent Chromium by EPA Method 799 0. Arsenic and Thallium by EPA Method 6020

SOILS REPORT (,00 CYs) Upper Ladera Linda Park 3220 Forrestal Drive, Rancho Palos Verde, CA 90275 December 23, 205 Page 3 of 5 DISCUSSION OF ANALYTICAL RESULTS Analytical results for all analyses performed on the,00 CYs of imported soils are tabulated in Table A and Table B (Analytical Results for,00 CYs Soil) which follows the text of this report. The laboratory report of analytical results and Chain-of-Custody Record are contained in Attachment A. Total Petroleum Hydrocarbons Total Petroleum Hydrocarbons as gasoline (TPH-gas) were not detected in any soil sample. TPH-diesel were detected at a maximum concentration of 3 milligrams per kilogram (mg/kg or parts per million). TPH-oil were detected in at a maximum concentration of 22 mg/kg. There is no CHHSL for TPH. However, the maximum level of long-chain petroleum hydrocarbons (i.e., TPH-diesel and TPH-oil) present in soils considered acceptable for use at an LAUSD school site is,000 mg/kg. The detected maximum concentrations of TPH-diesel (3 mg/kg) and TPH-oil (22 mg/kg) are two orders of magnitude below the LAUSD s soil screening level of,000 mg/kg for long-chain petroleum hydrocarbons. Volatile Organic Compounds With the exception of low levels of benzene in a single soil sample (0.0056 mg/kg in SS-2), VOCs were not detected in any soil sample. The USEPA Region IX Soil Screening Level (SSL) for benzene in residential soils is.2 mg/kg. The detected concentration of benzene (0.0056 mg/kg) is three orders of magnitude below the Region IX SSL for benzene in residential soils. Semi-Volatile Organic Compounds Semi-Volatile Organic Compounds were not detected in any soil sample. Polychlorinated Biphenyls Polychlorinated Biphenyls ( PCBs ) were not detected in any soil sample. Title 22 Metals With the exception of arsenic, all detected concentrations of Title 22 Metals are below their applicable CHHSL for residential soils.

SOILS REPORT (,00 CYs) Upper Ladera Linda Park 3220 Forrestal Drive, Rancho Palos Verde, CA 90275 December 23, 205 Page 4 of 5 Arsenic was detected at a maximum concentration of 8.6 mg/kg. The Cal-EPA s Department of Toxic Substances Control (DTSC) has determined that the naturally occurring background level for arsenic in Southern California soils is 2 mg/kg. Therefore, the detected concentrations of arsenic (<8.6 mg/kg) are within levels determined to be acceptable for school use. Hexavalent chromium (Cr 6+) was detected in a single sample (SS-5-ABC) at a concentration of 0.73 mg/kg. The detected concentration of hexavalent chromium (0.73 mg/kg) is two orders of magnitude below both the residential CHHSL of 7 mg/kg, and the LAUSD-specific soil screening level of 5 mg/kg for hexavalent chromium. Organo-Chlorine Pesticides Several organo-chlorine pesticides were detected at low levels. The types of organo-chlorine pesticides at the site were widely used in Southern California prior to being banned in the 970s and 980s; trace concentrations continue to be detected in soils throughout Southern Califorrnia. 4,4 - DDD was detected at a maximum concentration of 0.02 mg/kg; this is two orders of magnitude below the residential CHHSL of 2.3 mg/kg for 4,4 -DDD. 4,4 -DDE was detected at a maximum concentration of 0.06 mg/kg; this is two orders of magnitude below the residential CHHSL of.6 mg/kg for 4,4 -DDE. 4,4 -DDT was detected at a maximum concentration of 0.022 mg/kg; this is two orders of magnitude below the residential CHHSL of.6 mg/kg for 4,4 -DDT. Dieldrin was detected at a maximum concentration of 0.0024 mg/kg; this is an order of magnitude below the residential CHHSL of 0.035 mg/kg for Dieldrin. Total Chlordane was detected at a maximum concentration of 0.055 mg/kg; this is an order of magnitude below the residential CHHSL of 0.43 mg/kg for Total Chlordane. Organo-Phosphorus Pesticides Organo-phosphorus pesticides were not detected in any soil sample. Chlorinated Herbicides Chlorinated herbicides were not detected in any soil sample.

SOILS REPORT (,00 CYs) Upper Ladera Linda Park 3220 Forrestal Drive, Rancho Palos Verde, CA 90275 December 23, 205 Page 5 of 5 DATA VALIDATION Matrix Spikes (MS) and Matrix Spike Duplicates (MSD) for several analyses were outside recovery criteria for some analytes due to matrix interference. However, the associated Laboratory Control Sample (LCS) recoveries were within acceptable recovery limits. The QA/QC data for the,00 CYs laboratory results did not reveal discrepancies or items of concern that would render the analytical data individually or collectively unusable for soil classification or risk/hazard assessment purposes. CONCLUSIONS Based on the analytical results, the,00 CYs of soil sampled are acceptable for use at the Upper Ladera Linda Park. Charles F. Lindeman Environmental Professional

TABLE A - Analytical Results for,00 CYs Soil Upper Ladera Linda Park 3220 Forrestal Drive, Rancho Palos Verde, CA 90275 Page of 2 Sample ID VOCs by 8260B (mg/kg) Applicable USEPA Region IX SSL A Semi-VOCs by 8270C (mg/kg) TPH as gas, diesel & oil (mg/kg) Applicable LAUSD Section 0-4524 SSL B PCBs by 8082 (mg/kg) Organochlorine Pesticides by 808A (ug/kg) Applicable OEHHA CHHSL C Organo- Phosphorus Pesticides by 84A (mg/kg) Chlorinated Herbicides by 85A (mg/kg) SS- SS- ABC for all for all gas - diesel - oil - 4 gas 00 diesel,000 oil,000 for all 4,4'-DDE - 0.0 4,4'-DDT - 0.04 Total Chlordane - 0.046 α-chlordane - 0.0058 γ-chlordane - 0.0058 DDE.6 DDT.6 Total Chlordane 0.43 for all for all SS-2 SS-2 ABC Benzene 0.0056 Benzene.2 for all gas - diesel - 3 oil - 22 gas 00 diesel,000 oil,000 for all 4,4'-DDD - 0.02 4,4'-DDE - 0.05 4,4'-DDT - 0.022 Dieldrin - 0.0024 Total Chlordane - 0.055 α-chlordane - 0.007 γ-chlordane - 0.0086 DDD 2.3 DDE.6 DDT.6 Dieldrin 0.035 Total Chlordane 0.43 for all for all SS-3 SS-3 ABC for all for all gas - diesel - 3 oil - 20 gas 00 diesel,000 oil,000 for all 4,4'-DDD - 0.007 4,4'-DDE - 0.009 4,4'-DDT - 0.09 Total Chlordane - 0.032 α-chlordane - 0.0042 γ-chlordane - 0.0055 DDD 2.3 DDE.6 DDT.6 Total Chlordane 0.43 for all for all SS-4 SS-4 ABC for all for all gas - diesel - oil - 5 gas 00 diesel,000 oil,000 for all 4,4'-DDD - 0.0067 4,4'-DDE - 0.0098 4,4'-DDT - 0.06 Total Chlordane - 0.026 α-chlordane - 0.0029 γ-chlordane - 0.004 DDD 2.3 DDE.6 DDT.6 Total Chlordane 0.43 for all for all SS-5 SS-5 ABC for all for all gas - diesel - 2 oil - 9 gas 00 diesel,000 oil,000 for all 4,4'-DDD - 0.0078 4,4'-DDE - 0.060 4,4'-DDT - 0.020 Total Chlordane - 0.022 α-chlordane - 0.0 γ-chlordane - 0.0069 DDD 2.3 DDE.6 DDT.6 Total Chlordane 0.43 for all for all A. USEPA Region IX Soil Screening Levels (SSLs) for residential soils. B. Los Angeles Unified School District's Section 0-4524 school-use Soil Screening Level (SSL) for gasoiline, diesel and oil. C. Office of Environmental Health Hazard Assesment (OEHHA) California Human Healthh Screeniing Levels (CHHSLs) for residential soils. All concentrations in milligrams per kilogram (mg/kg) or parts per million (ppm). = None Detected. TPH = Total Petroleum Hydrocarbons (gas C4 to C2; diesel C3 to C22; oil C23 to C40).

TABLE B - Analytical Results for,00 CYs Soil Upper Ladera Linda Park 3220 Forrestal Drive, Ranch Palos Verde, CA 90275 Page 2 of 2 Title 22 Metals SS- ABC (mg/kg) SS-2 ABC (mg/kg) SS-3 ABC (mg/kg) SS-4 ABC (mg/kg) SS-5 ABC (mg/kg) Applicable OEHHA CHHSLs (mg/kg) Antimony 30 Arsenic 2.8 4.4 2.7 2.9 8.6 2 A Barium 58 40 52 65 450 5,200 Beryllium 6 Cadmium..7 Chromium 22 9.5 2 38 00,000 Hex Chrome 0.73 5 B Cobalt 3 7.7 2.7 3.2 9.9 660 Copper 8.5 8 7.9 7.7 33 3,000 Lead 5.6 4 6 7 6.7 80 Mercury 8 Molybdenum 380 Nickel 8.6 29 6.9 9. 35,600 Selenium 2 380 Silver 380 Thallium 5 Vanadium 8 42 5 9 60 530 Zinc 28 58 29 29 86 23,000 All concentrations in milligrams per kilogram (mg/kg) or parts per million (ppm). CHHSLs = CA Human Health Screening Levels. = Not Detected. A = Cal-EPA DTSC-determined, naturally occurring background concentration of arsenic in Southern CA soils. B = LAUSD Section 0-4524 school-use Soil Screening Level (SSL) for hexavalent chromium.

R B C R ES T RD E O RD T N I P MANE LN E N RI W S B G E RD I U G T U T O P D N E E N D T K PAC D S R D I L W B RD G RI RD RD E A C A P CREST RD DR ABRAZO KSADDLE RD E DR DO A GA DR INTREPID R BE N CASILIN G I D COOLHEI TA DR C FALCONHEAD F LI SCHOONER DR A HA DR B S GANADO DR E S P ALOS V R DE DR S PACIFIC OCEAN L W OCEANGROVE YACHT E DR M WKS O R O DR R R A O A CE PHANTOM DR I IG V I E A DR AVEN O H G AVENGER PL S DR DR S F R DR TE HI PIRATE DR H GE IC DR L I R DR N EA CIR D RI GU O R GLEHAVEN F HE AQUA C DR R O FL EST DR VISTA DR HELM PL VALOR PL TA DR RT D DR A W I T H G EXULTANT E SP D DR ADMIRABLE VE N A SE DRIFT L WAL R L G D ES E N DR SEA HORSE PALOS VERDES DR S O V L 30300 30500 PA LN TA S I SEACLIFF DR A I S L DR T R 2 HYANNIS LN CAPE TER N FOR 0 ES L T DAUNTLESS S L PA RD ADMIRABLE DR COMM CTR GATE LN SEASCAPE SPIN- URCHIN SEA R DR DR DR DR LOS DRIFT SEA DR LN D GATE SEE A J6 LADERA LIA PARK 45 0 06 3 0 4300 0 4400 3500 32200 0 0 3900 8 3 32300 4 00 3200 4300 4200 3500 32400 3600 400 0 380 RD MARITIME 4 5 6 823 C D E F 2006 Thomas Bros. Maps Upper Ladera Linda Park 0 ft 850 700 C D E F Upper Ladera Linda Park: 3220 Forrestal Dr, Rancho Palos Verdes,CA 90275, 823 4 5 6

0 65 FEET (approx.) SS-5 SS-4 SS-3 SS-2 SS- Soccer Fields LEGE SS- Soil Sample Location and Identification Stockpiled Soil All Locations Approximate LEYMASTER ENVIRONMENTAL CONSULTING, LLC 5500 East Atherton Street, Suite 20 Long Beach, California 9085 Phone: (562) 799-9866 Fax: (562) 799-963 SOIL SAMPLE LOCATIONS Upper Ladera Linda Park 3220 Forrestal Drive Rancho Palos Verde, CA 90275 FIGURE 2 DECEMBER 23, 205

ATTACHMENT A Laboratory Report of Analytical Results and Chain-of-Custody Record

December 8, 205 Charles F. Lindeman Leymaster Environmental Consulting, LLC 5500 East Atherton Street, Suite20 Long Beach, CA 9085 TEL: (562) 799-9866 FAX: (562) 799-963 CA-ELAP No.:2676 NV Cert. No.: NV-00922 Workorder No.: N0803 RE: Upper Ladera Linda Park Attention: Charles F. Lindeman Enclosed are the results for sample(s) received on December 5, 205 by. The sample(s) are tested for the parameters as indicated in the enclosed chain of custody in accordance with the applicable laboratory certifications. Thank you for the opportunity to service the needs of your company. Please feel free to call me at (702) 307-2659 or Molky Brar at (562)-88-3622 if we can be of further assistance to your company. Sincerely, Molky Brar Project Manager Glen Gesmundo QA Manager 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 0 of 77

Date: 8-Dec-5 CLIENT: Project: Lab Order: Leymaster Environmental Consulting, LLC Upper Ladera Linda Park N0803 CASE NARRATIVE SAMPLE RECEIVING/GENERAL COMMENTS: Sample was received intact with proper chain of custody documentation. Cooler temperature and sample preservation were verified upon receipt of samples if applicable. Information on sample receipt conditions including discrepancies can be found in attached Sample Receipt Checklist Form. Sample was analyzed within method holding time. Subcontracted Analyses: EPA 84 and 85 analyses were subcontracted to BC Labs. Analytical Comments for EPA 600B: Matrix Spike (MS) and Matrix Spike Duplicate (MSD) are outside recovery criteria on QC samples N0806-02A-MS and N0806-02A-MSD possibly due to matrix interference. The associated Laboratory Control Sample (LCS) recovery was acceptable. Analytical Comments for EPA 808: Matrix Spike (MS) and Matrix Spike Duplicate (MSD) are outside recovery criteria for some analytes on QC samples N0803-005A-MS and N0803-005A-MSD possibly due to matrix interference. The associated Laboratory Control Sample (LCS) recovery was acceptable. Analytical Comments for EPA 8082: Matrix Spike (MS) and Matrix Spike Duplicate (MSD) are outside recovery criteria on QC samples N0793-002B-MS and N0793-002B-MSD possibly due to matrix interference. The associated Laboratory Control Sample (LCS) recovery was acceptable. Analytical Comments for EPA 8270C: Results were J-Flag. "J" is used to flag those results that are between the PQL (Practical Quantitation Limit) and the calculated MDL (Method Detection Limit). Results that are "J" Flagged are estimated values since it becomes difficult to accurately quantitate the analyte near the MDL.. 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 02 of 77 Page 3 of 7 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Project: Lab Order: Leymaster Environmental Consulting, LLC Upper Ladera Linda Park N0803 CASE NARRATIVE Some analytes were reported with dilution on samples. Dilution was necessary due to associated internal standard not meeting method criteria possibly due to matrix interference. 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 03 of 77 Page 4 of 7 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

Date: 8-Dec-5 CLIENT: Project: Lab Order: Contract No: Leymaster Environmental Consulting, LLC Upper Ladera Linda Park N0803 Work Order Sample Summary Lab Sample ID Client Sample ID Matrix Collection Date Date Received Date Reported N0803-00A SS Soil 2/4/205 9:5:00 AM 2/5/205 2/8/205 N0803-00B SS Soil 2/4/205 9:5:00 AM 2/5/205 2/8/205 N0803-00C SS Soil 2/4/205 9:5:00 AM 2/5/205 2/8/205 N0803-00D SS Soil 2/4/205 9:5:00 AM 2/5/205 2/8/205 N0803-00E SS Soil 2/4/205 9:5:00 AM 2/5/205 2/8/205 N0803-002A SS-A Soil 2/4/205 9:0:00 AM 2/5/205 2/8/205 N0803-003A SS-B Soil 2/4/205 9::00 AM 2/5/205 2/8/205 N0803-004A SS-C Soil 2/4/205 9:2:00 AM 2/5/205 2/8/205 N0803-005A SS-A,B,C composite Soil 2/5/205 2/5/205 2/8/205 N0803-005B SS-A,B,C composite Soil 2/4/205 2/5/205 2/8/205 N0803-006A SS2 Soil 2/4/205 9:45:00 AM 2/5/205 2/8/205 N0803-006B SS2 Soil 2/4/205 9:45:00 AM 2/5/205 2/8/205 N0803-006C SS2 Soil 2/4/205 9:45:00 AM 2/5/205 2/8/205 N0803-006D SS2 Soil 2/4/205 9:45:00 AM 2/5/205 2/8/205 N0803-006E SS2 Soil 2/4/205 9:45:00 AM 2/5/205 2/8/205 N0803-007A SS2-A Soil 2/4/205 9:47:00 AM 2/5/205 2/8/205 N0803-008A SS2-B Soil 2/4/205 9:48:00 AM 2/5/205 2/8/205 N0803-009A SS2-C Soil 2/4/205 9:49:00 AM 2/5/205 2/8/205 N0803-00A SS2-A,B,C composite Soil 2/5/205 2/5/205 2/8/205 N0803-00B SS2-A,B,C composite Soil 2/4/205 2/5/205 2/8/205 N0803-0A SS3 Soil 2/4/205 0:00:00 AM 2/5/205 2/8/205 N0803-0B SS3 Soil 2/4/205 0:00:00 AM 2/5/205 2/8/205 N0803-0C SS3 Soil 2/4/205 0:00:00 AM 2/5/205 2/8/205 N0803-0D SS3 Soil 2/4/205 0:00:00 AM 2/5/205 2/8/205 N0803-0E SS3 Soil 2/4/205 0:00:00 AM 2/5/205 2/8/205 N0803-02A SS3-A Soil 2/4/205 9:57:00 AM 2/5/205 2/8/205 N0803-03A SS3-B Soil 2/4/205 9:58:00 AM 2/5/205 2/8/205 N0803-04A SS3-C Soil 2/4/205 9:59:00 AM 2/5/205 2/8/205 N0803-05A SS3-A,B,C composite Soil 2/5/205 2/5/205 2/8/205 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 04 of 77 Page of 2 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Project: Lab Order: Contract No: Leymaster Environmental Consulting, LLC Upper Ladera Linda Park N0803 Work Order Sample Summary Lab Sample ID Client Sample ID Matrix Collection Date Date Received Date Reported N0803-05B SS3-A,B,C composite Soil 2/4/205 2/5/205 2/8/205 N0803-06A SS4 Soil 2/4/205 0:5:00 AM 2/5/205 2/8/205 N0803-06B SS4 Soil 2/4/205 0:5:00 AM 2/5/205 2/8/205 N0803-06C SS4 Soil 2/4/205 0:5:00 AM 2/5/205 2/8/205 N0803-06D SS4 Soil 2/4/205 0:5:00 AM 2/5/205 2/8/205 N0803-06E SS4 Soil 2/4/205 0:5:00 AM 2/5/205 2/8/205 N0803-07A SS4-A Soil 2/4/205 0:6:00 AM 2/5/205 2/8/205 N0803-08A SS4-B Soil 2/4/205 0:7:00 AM 2/5/205 2/8/205 N0803-09A SS4-C Soil 2/4/205 0:0:00 AM 2/5/205 2/8/205 N0803-020A SS4-A,B,C composite Soil 2/5/205 2/5/205 2/8/205 N0803-020B SS4-A,B,C composite Soil 2/4/205 2/5/205 2/8/205 N0803-02A SS5 Soil 2/4/205 0:35:00 AM 2/5/205 2/8/205 N0803-02B SS5 Soil 2/4/205 0:35:00 AM 2/5/205 2/8/205 N0803-02C SS5 Soil 2/4/205 0:35:00 AM 2/5/205 2/8/205 N0803-02D SS5 Soil 2/4/205 0:35:00 AM 2/5/205 2/8/205 N0803-02E SS5 Soil 2/4/205 0:35:00 AM 2/5/205 2/8/205 N0803-022A SS2-A Soil 2/4/205 0:36:00 AM 2/5/205 2/8/205 N0803-023A SS2-B Soil 2/4/205 0:37:00 AM 2/5/205 2/8/205 N0803-024A SS5-C Soil 2/4/205 0:38:00 AM 2/5/205 2/8/205 N0803-025A SS5-A,B,C composite Soil 2/5/205 2/5/205 2/8/205 N0803-025B SS5-A,B,C composite Soil 2/4/205 2/5/205 2/8/205 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 05 of 77 Page 2 of 2 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-00 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS Collection Date: 2/4/205 9:5:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM,,,2-Tetrachloroethane 5.2 µg/kg 2/6/205 :20 PM,,-Trichloroethane 5.2 µg/kg 2/6/205 :20 PM,,2,2-Tetrachloroethane 5.2 µg/kg 2/6/205 :20 PM,,2-Trichloroethane 5.2 µg/kg 2/6/205 :20 PM,-Dichloroethane 5.2 µg/kg 2/6/205 :20 PM,-Dichloroethene 5.2 µg/kg 2/6/205 :20 PM,-Dichloropropene 5.2 µg/kg 2/6/205 :20 PM,2,3-Trichlorobenzene 5.2 µg/kg 2/6/205 :20 PM,2,3-Trichloropropane 5.2 µg/kg 2/6/205 :20 PM,2,4-Trichlorobenzene 5.2 µg/kg 2/6/205 :20 PM,2,4-Trimethylbenzene 5.2 µg/kg 2/6/205 :20 PM,2-Dibromo-3-chloropropane 0 µg/kg 2/6/205 :20 PM,2-Dibromoethane 5.2 µg/kg 2/6/205 :20 PM,2-Dichlorobenzene 5.2 µg/kg 2/6/205 :20 PM,2-Dichloroethane 5.2 µg/kg 2/6/205 :20 PM,2-Dichloropropane 5.2 µg/kg 2/6/205 :20 PM,3,5-Trimethylbenzene 5.2 µg/kg 2/6/205 :20 PM,3-Dichlorobenzene 5.2 µg/kg 2/6/205 :20 PM,3-Dichloropropane 5.2 µg/kg 2/6/205 :20 PM,4-Dichlorobenzene 5.2 µg/kg 2/6/205 :20 PM 2,2-Dichloropropane 5.2 µg/kg 2/6/205 :20 PM 2-Butanone 52 µg/kg 2/6/205 :20 PM 2-Chlorotoluene 5.2 µg/kg 2/6/205 :20 PM 4-Chlorotoluene 5.2 µg/kg 2/6/205 :20 PM 4-Isopropyltoluene 5.2 µg/kg 2/6/205 :20 PM Benzene 5.2 µg/kg 2/6/205 :20 PM Bromobenzene 5.2 µg/kg 2/6/205 :20 PM Bromodichloromethane 5.2 µg/kg 2/6/205 :20 PM Bromoform 5.2 µg/kg 2/6/205 :20 PM Bromomethane 5.2 µg/kg 2/6/205 :20 PM Carbon tetrachloride 5.2 µg/kg 2/6/205 :20 PM Chlorobenzene 5.2 µg/kg 2/6/205 :20 PM Chloroethane 5.2 µg/kg 2/6/205 :20 PM Chloroform 5.2 µg/kg 2/6/205 :20 PM Chloromethane 5.2 µg/kg 2/6/205 :20 PM cis-,2-dichloroethene 5.2 µg/kg 2/6/205 :20 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 06 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-00 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS Collection Date: 2/4/205 9:5:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM cis-,3-dichloropropene 5.2 µg/kg 2/6/205 :20 PM Dibromochloromethane 5.2 µg/kg 2/6/205 :20 PM Dibromomethane 5.2 µg/kg 2/6/205 :20 PM Dichlorodifluoromethane 5.2 µg/kg 2/6/205 :20 PM Ethylbenzene 5.2 µg/kg 2/6/205 :20 PM Freon-3 5.2 µg/kg 2/6/205 :20 PM Hexachlorobutadiene 5.2 µg/kg 2/6/205 :20 PM Isopropylbenzene 5.2 µg/kg 2/6/205 :20 PM m,p-xylene 0 µg/kg 2/6/205 :20 PM Methylene chloride 5.2 µg/kg 2/6/205 :20 PM MTBE 5.2 µg/kg 2/6/205 :20 PM n-butylbenzene 5.2 µg/kg 2/6/205 :20 PM n-propylbenzene 5.2 µg/kg 2/6/205 :20 PM Naphthalene 5.2 µg/kg 2/6/205 :20 PM o-xylene 5.2 µg/kg 2/6/205 :20 PM sec-butylbenzene 5.2 µg/kg 2/6/205 :20 PM Styrene 5.2 µg/kg 2/6/205 :20 PM tert-butylbenzene 5.2 µg/kg 2/6/205 :20 PM Tetrachloroethene 5.2 µg/kg 2/6/205 :20 PM Toluene 5.2 µg/kg 2/6/205 :20 PM trans-,2-dichloroethene 5.2 µg/kg 2/6/205 :20 PM Trichloroethene 5.2 µg/kg 2/6/205 :20 PM Trichlorofluoromethane 5.2 µg/kg 2/6/205 :20 PM Vinyl chloride 5.2 µg/kg 2/6/205 :20 PM Surr:,2-Dichloroethane-d4 23 75-40 %REC 2/6/205 :20 PM Surr: 4-Bromofluorobenzene 98.2 73-28 %REC 2/6/205 :20 PM Surr: Dibromofluoromethane 8 78-33 %REC 2/6/205 :20 PM Surr: Toluene-d8 07 80-20 %REC 2/6/205 :20 PM GASOLINE RANGE ORGANICS BY GC/FID EPA 805B RunID: GC4_526A QC Batch: E5VS44 PrepDate: 2/6/205 Analyst: QBM GRO.0 mg/kg 2/6/205 02:05 PM Surr: Chlorobenzene - d5 82.6 46-54 %REC 2/6/205 02:05 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 07 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-005 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID EPA 3550B EPA 805B RunID: GC3_525E QC Batch: 55428 PrepDate: 2/5/205 Analyst: MDM DRO 0 mg/kg 2/7/205 2:52 AM ORO 4 0 mg/kg 2/7/205 2:52 AM Surr: p-terphenyl 93.7 38-52 %REC 2/7/205 2:52 AM ORGANOCHLORINE PESTICIDES BY GC/ECD EPA 3550B EPA 808A RunID: GC8_526B QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM 4,4 -DDD 2.0 µg/kg 2/6/205 04:26 PM 4,4 -DDE 0 2.0 µg/kg 2/6/205 04:26 PM 4,4 -DDT 4 2.0 µg/kg 2/6/205 04:26 PM Aldrin.0 µg/kg 2/6/205 04:26 PM alpha-bhc.0 µg/kg 2/6/205 04:26 PM alpha-chlordane 5.8.0 µg/kg 2/6/205 04:26 PM beta-bhc.0 µg/kg 2/6/205 04:26 PM Chlordane 46 8.5 µg/kg 2/6/205 04:26 PM delta-bhc.0 µg/kg 2/6/205 04:26 PM Dieldrin 2.0 µg/kg 2/6/205 04:26 PM Endosulfan I.0 µg/kg 2/6/205 04:26 PM Endosulfan II 2.0 µg/kg 2/6/205 04:26 PM Endosulfan sulfate 2.0 µg/kg 2/6/205 04:26 PM Endrin 2.0 µg/kg 2/6/205 04:26 PM Endrin aldehyde 2.0 µg/kg 2/6/205 04:26 PM Endrin ketone 2.0 µg/kg 2/6/205 04:26 PM gamma-bhc.0 µg/kg 2/6/205 04:26 PM gamma-chlordane 5.8.0 µg/kg 2/6/205 04:26 PM Heptachlor.0 µg/kg 2/6/205 04:26 PM Heptachlor epoxide.0 µg/kg 2/6/205 04:26 PM Methoxychlor 8.5 µg/kg 2/6/205 04:26 PM Toxaphene 85 µg/kg 2/6/205 04:26 PM Surr: Tetrachloro-m-xylene 64.7 26-20 %REC 2/6/205 04:26 PM Surr: Decachlorobiphenyl 58.2 3-3 %REC 2/6/205 04:26 PM PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 06 7 µg/kg 2/6/205 03:26 PM Aroclor 22 33 µg/kg 2/6/205 03:26 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 08 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-005 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 232 7 µg/kg 2/6/205 03:26 PM Aroclor 242 7 µg/kg 2/6/205 03:26 PM Aroclor 248 7 µg/kg 2/6/205 03:26 PM Aroclor 254 7 µg/kg 2/6/205 03:26 PM Aroclor 260 7 µg/kg 2/6/205 03:26 PM Surr: Decachlorobiphenyl 07 34-47 %REC 2/6/205 03:26 PM Surr: Tetrachloro-m-xylene 78.0 30-8 %REC 2/6/205 03:26 PM HEXAVALENT CHROMIUM BY IC EPA 3060A EPA 799 RunID: IC_526A QC Batch: 55429 PrepDate: 2/5/205 Analyst: RB Hexavalent Chromium 0.20 mg/kg 2/6/205 07:53 PM TOTAL MERCURY BY COLD VAPOR TECHNIQUE EPA 747A RunID: AA_528A QC Batch: 55439 PrepDate: 2/6/205 Analyst: CEI Mercury 0.0 mg/kg 2/8/205 0:4 AM TOTAL METALS BY ICP EPA 3050B EPA 600B RunID: ICP2_526E QC Batch: 55425 PrepDate: 2/5/205 Analyst: CEI Antimony 2.0 mg/kg 2/6/205 0:3 PM Barium 58.0 mg/kg 2/6/205 0:3 PM Beryllium.0 mg/kg 2/6/205 0:3 PM Cadmium.0 mg/kg 2/6/205 0:3 PM Chromium.0 mg/kg 2/6/205 0:3 PM Cobalt 3.0.0 mg/kg 2/6/205 0:3 PM Copper 8.5 2.0 mg/kg 2/6/205 0:3 PM Lead 5.6.0 mg/kg 2/6/205 0:3 PM Molybdenum.0 mg/kg 2/6/205 0:3 PM Nickel 8.6.0 mg/kg 2/6/205 0:3 PM Selenium.0 mg/kg 2/6/205 0:3 PM Silver.0 mg/kg 2/6/205 0:3 PM Vanadium 8.0 mg/kg 2/6/205 0:3 PM Zinc 28.0 mg/kg 2/6/205 0:3 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 09 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-006 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS2 Collection Date: 2/4/205 9:45:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM,,,2-Tetrachloroethane 5.2 µg/kg 2/6/205 :46 PM,,-Trichloroethane 5.2 µg/kg 2/6/205 :46 PM,,2,2-Tetrachloroethane 5.2 µg/kg 2/6/205 :46 PM,,2-Trichloroethane 5.2 µg/kg 2/6/205 :46 PM,-Dichloroethane 5.2 µg/kg 2/6/205 :46 PM,-Dichloroethene 5.2 µg/kg 2/6/205 :46 PM,-Dichloropropene 5.2 µg/kg 2/6/205 :46 PM,2,3-Trichlorobenzene 5.2 µg/kg 2/6/205 :46 PM,2,3-Trichloropropane 5.2 µg/kg 2/6/205 :46 PM,2,4-Trichlorobenzene 5.2 µg/kg 2/6/205 :46 PM,2,4-Trimethylbenzene 5.2 µg/kg 2/6/205 :46 PM,2-Dibromo-3-chloropropane 0 µg/kg 2/6/205 :46 PM,2-Dibromoethane 5.2 µg/kg 2/6/205 :46 PM,2-Dichlorobenzene 5.2 µg/kg 2/6/205 :46 PM,2-Dichloroethane 5.2 µg/kg 2/6/205 :46 PM,2-Dichloropropane 5.2 µg/kg 2/6/205 :46 PM,3,5-Trimethylbenzene 5.2 µg/kg 2/6/205 :46 PM,3-Dichlorobenzene 5.2 µg/kg 2/6/205 :46 PM,3-Dichloropropane 5.2 µg/kg 2/6/205 :46 PM,4-Dichlorobenzene 5.2 µg/kg 2/6/205 :46 PM 2,2-Dichloropropane 5.2 µg/kg 2/6/205 :46 PM 2-Butanone 52 µg/kg 2/6/205 :46 PM 2-Chlorotoluene 5.2 µg/kg 2/6/205 :46 PM 4-Chlorotoluene 5.2 µg/kg 2/6/205 :46 PM 4-Isopropyltoluene 5.2 µg/kg 2/6/205 :46 PM Benzene 5.6 5.2 µg/kg 2/6/205 :46 PM Bromobenzene 5.2 µg/kg 2/6/205 :46 PM Bromodichloromethane 5.2 µg/kg 2/6/205 :46 PM Bromoform 5.2 µg/kg 2/6/205 :46 PM Bromomethane 5.2 µg/kg 2/6/205 :46 PM Carbon tetrachloride 5.2 µg/kg 2/6/205 :46 PM Chlorobenzene 5.2 µg/kg 2/6/205 :46 PM Chloroethane 5.2 µg/kg 2/6/205 :46 PM Chloroform 5.2 µg/kg 2/6/205 :46 PM Chloromethane 5.2 µg/kg 2/6/205 :46 PM cis-,2-dichloroethene 5.2 µg/kg 2/6/205 :46 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-006 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS2 Collection Date: 2/4/205 9:45:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM cis-,3-dichloropropene 5.2 µg/kg 2/6/205 :46 PM Dibromochloromethane 5.2 µg/kg 2/6/205 :46 PM Dibromomethane 5.2 µg/kg 2/6/205 :46 PM Dichlorodifluoromethane 5.2 µg/kg 2/6/205 :46 PM Ethylbenzene 5.2 µg/kg 2/6/205 :46 PM Freon-3 5.2 µg/kg 2/6/205 :46 PM Hexachlorobutadiene 5.2 µg/kg 2/6/205 :46 PM Isopropylbenzene 5.2 µg/kg 2/6/205 :46 PM m,p-xylene 0 µg/kg 2/6/205 :46 PM Methylene chloride 5.2 µg/kg 2/6/205 :46 PM MTBE 5.2 µg/kg 2/6/205 :46 PM n-butylbenzene 5.2 µg/kg 2/6/205 :46 PM n-propylbenzene 5.2 µg/kg 2/6/205 :46 PM Naphthalene 5.2 µg/kg 2/6/205 :46 PM o-xylene 5.2 µg/kg 2/6/205 :46 PM sec-butylbenzene 5.2 µg/kg 2/6/205 :46 PM Styrene 5.2 µg/kg 2/6/205 :46 PM tert-butylbenzene 5.2 µg/kg 2/6/205 :46 PM Tetrachloroethene 5.2 µg/kg 2/6/205 :46 PM Toluene 5.2 µg/kg 2/6/205 :46 PM trans-,2-dichloroethene 5.2 µg/kg 2/6/205 :46 PM Trichloroethene 5.2 µg/kg 2/6/205 :46 PM Trichlorofluoromethane 5.2 µg/kg 2/6/205 :46 PM Vinyl chloride 5.2 µg/kg 2/6/205 :46 PM Surr:,2-Dichloroethane-d4 29 75-40 %REC 2/6/205 :46 PM Surr: 4-Bromofluorobenzene 96.9 73-28 %REC 2/6/205 :46 PM Surr: Dibromofluoromethane 2 78-33 %REC 2/6/205 :46 PM Surr: Toluene-d8 05 80-20 %REC 2/6/205 :46 PM GASOLINE RANGE ORGANICS BY GC/FID EPA 805B RunID: GC4_526A QC Batch: E5VS44 PrepDate: 2/6/205 Analyst: QBM GRO.0 mg/kg 2/6/205 02:38 PM Surr: Chlorobenzene - d5 70.5 46-54 %REC 2/6/205 02:38 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 2 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-00 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS2-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID EPA 3550B EPA 805B RunID: GC3_525E QC Batch: 55428 PrepDate: 2/5/205 Analyst: MDM DRO 3 0 mg/kg 2/7/205 0:8 AM ORO 22 0 mg/kg 2/7/205 0:8 AM Surr: p-terphenyl 92.0 38-52 %REC 2/7/205 0:8 AM ORGANOCHLORINE PESTICIDES BY GC/ECD EPA 3550B EPA 808A RunID: GC8_526B QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM 4,4 -DDD 2 2.0 µg/kg 2/6/205 04:49 PM 4,4 -DDE 5 2.0 µg/kg 2/6/205 04:49 PM 4,4 -DDT 5 2.0 µg/kg 2/6/205 04:49 PM Aldrin.0 µg/kg 2/6/205 04:49 PM alpha-bhc.0 µg/kg 2/6/205 04:49 PM alpha-chlordane 7.0.0 µg/kg 2/6/205 04:49 PM beta-bhc.0 µg/kg 2/6/205 04:49 PM Chlordane 55 8.5 µg/kg 2/6/205 04:49 PM delta-bhc.0 µg/kg 2/6/205 04:49 PM Dieldrin 2.4 2.0 µg/kg 2/6/205 04:49 PM Endosulfan I.0 µg/kg 2/6/205 04:49 PM Endosulfan II 2.0 µg/kg 2/6/205 04:49 PM Endosulfan sulfate 2.0 µg/kg 2/6/205 04:49 PM Endrin 2.0 µg/kg 2/6/205 04:49 PM Endrin aldehyde 2.0 µg/kg 2/6/205 04:49 PM Endrin ketone 2.0 µg/kg 2/6/205 04:49 PM gamma-bhc.0 µg/kg 2/6/205 04:49 PM gamma-chlordane 8.6.0 µg/kg 2/6/205 04:49 PM Heptachlor.0 µg/kg 2/6/205 04:49 PM Heptachlor epoxide.0 µg/kg 2/6/205 04:49 PM Methoxychlor 8.5 µg/kg 2/6/205 04:49 PM Toxaphene 85 µg/kg 2/6/205 04:49 PM Surr: Tetrachloro-m-xylene 63.3 26-20 %REC 2/6/205 04:49 PM Surr: Decachlorobiphenyl 59.6 3-3 %REC 2/6/205 04:49 PM PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 06 7 µg/kg 2/6/205 03:49 PM Aroclor 22 33 µg/kg 2/6/205 03:49 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 3 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-00 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS2-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 232 7 µg/kg 2/6/205 03:49 PM Aroclor 242 7 µg/kg 2/6/205 03:49 PM Aroclor 248 7 µg/kg 2/6/205 03:49 PM Aroclor 254 7 µg/kg 2/6/205 03:49 PM Aroclor 260 7 µg/kg 2/6/205 03:49 PM Surr: Decachlorobiphenyl 04 34-47 %REC 2/6/205 03:49 PM Surr: Tetrachloro-m-xylene 8.7 30-8 %REC 2/6/205 03:49 PM HEXAVALENT CHROMIUM BY IC EPA 3060A EPA 799 RunID: IC_526A QC Batch: 55429 PrepDate: 2/5/205 Analyst: RB Hexavalent Chromium 0.20 mg/kg 2/6/205 08:5 PM TOTAL MERCURY BY COLD VAPOR TECHNIQUE EPA 747A RunID: AA_528A QC Batch: 55439 PrepDate: 2/6/205 Analyst: CEI Mercury 0.0 mg/kg 2/8/205 0:7 AM TOTAL METALS BY ICP EPA 3050B EPA 600B RunID: ICP2_526E QC Batch: 55425 PrepDate: 2/5/205 Analyst: CEI Antimony 2.0 mg/kg 2/6/205 0:37 PM Barium 40.0 mg/kg 2/6/205 0:37 PM Beryllium.0 mg/kg 2/6/205 0:37 PM Cadmium.0 mg/kg 2/6/205 0:37 PM Chromium 22.0 mg/kg 2/6/205 0:37 PM Cobalt 7.7.0 mg/kg 2/6/205 0:37 PM Copper 8 2.0 mg/kg 2/6/205 0:37 PM Lead 4.0 mg/kg 2/6/205 0:37 PM Molybdenum.0 mg/kg 2/6/205 0:37 PM Nickel 29.0 mg/kg 2/6/205 0:37 PM Selenium.0 mg/kg 2/6/205 0:37 PM Silver.0 mg/kg 2/6/205 0:37 PM Vanadium 42.0 mg/kg 2/6/205 0:37 PM Zinc 58.0 mg/kg 2/6/205 0:37 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 4 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-0 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS3 Collection Date: 2/4/205 0:00:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM,,,2-Tetrachloroethane 4.9 µg/kg 2/7/205 2: AM,,-Trichloroethane 4.9 µg/kg 2/7/205 2: AM,,2,2-Tetrachloroethane 4.9 µg/kg 2/7/205 2: AM,,2-Trichloroethane 4.9 µg/kg 2/7/205 2: AM,-Dichloroethane 4.9 µg/kg 2/7/205 2: AM,-Dichloroethene 4.9 µg/kg 2/7/205 2: AM,-Dichloropropene 4.9 µg/kg 2/7/205 2: AM,2,3-Trichlorobenzene 4.9 µg/kg 2/7/205 2: AM,2,3-Trichloropropane 4.9 µg/kg 2/7/205 2: AM,2,4-Trichlorobenzene 4.9 µg/kg 2/7/205 2: AM,2,4-Trimethylbenzene 4.9 µg/kg 2/7/205 2: AM,2-Dibromo-3-chloropropane 9.9 µg/kg 2/7/205 2: AM,2-Dibromoethane 4.9 µg/kg 2/7/205 2: AM,2-Dichlorobenzene 4.9 µg/kg 2/7/205 2: AM,2-Dichloroethane 4.9 µg/kg 2/7/205 2: AM,2-Dichloropropane 4.9 µg/kg 2/7/205 2: AM,3,5-Trimethylbenzene 4.9 µg/kg 2/7/205 2: AM,3-Dichlorobenzene 4.9 µg/kg 2/7/205 2: AM,3-Dichloropropane 4.9 µg/kg 2/7/205 2: AM,4-Dichlorobenzene 4.9 µg/kg 2/7/205 2: AM 2,2-Dichloropropane 4.9 µg/kg 2/7/205 2: AM 2-Butanone 49 µg/kg 2/7/205 2: AM 2-Chlorotoluene 4.9 µg/kg 2/7/205 2: AM 4-Chlorotoluene 4.9 µg/kg 2/7/205 2: AM 4-Isopropyltoluene 4.9 µg/kg 2/7/205 2: AM Benzene 4.9 µg/kg 2/7/205 2: AM Bromobenzene 4.9 µg/kg 2/7/205 2: AM Bromodichloromethane 4.9 µg/kg 2/7/205 2: AM Bromoform 4.9 µg/kg 2/7/205 2: AM Bromomethane 4.9 µg/kg 2/7/205 2: AM Carbon tetrachloride 4.9 µg/kg 2/7/205 2: AM Chlorobenzene 4.9 µg/kg 2/7/205 2: AM Chloroethane 4.9 µg/kg 2/7/205 2: AM Chloroform 4.9 µg/kg 2/7/205 2: AM Chloromethane 4.9 µg/kg 2/7/205 2: AM cis-,2-dichloroethene 4.9 µg/kg 2/7/205 2: AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 6 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-0 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS3 Collection Date: 2/4/205 0:00:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM cis-,3-dichloropropene 4.9 µg/kg 2/7/205 2: AM Dibromochloromethane 4.9 µg/kg 2/7/205 2: AM Dibromomethane 4.9 µg/kg 2/7/205 2: AM Dichlorodifluoromethane 4.9 µg/kg 2/7/205 2: AM Ethylbenzene 4.9 µg/kg 2/7/205 2: AM Freon-3 4.9 µg/kg 2/7/205 2: AM Hexachlorobutadiene 4.9 µg/kg 2/7/205 2: AM Isopropylbenzene 4.9 µg/kg 2/7/205 2: AM m,p-xylene 9.9 µg/kg 2/7/205 2: AM Methylene chloride 4.9 µg/kg 2/7/205 2: AM MTBE 4.9 µg/kg 2/7/205 2: AM n-butylbenzene 4.9 µg/kg 2/7/205 2: AM n-propylbenzene 4.9 µg/kg 2/7/205 2: AM Naphthalene 4.9 µg/kg 2/7/205 2: AM o-xylene 4.9 µg/kg 2/7/205 2: AM sec-butylbenzene 4.9 µg/kg 2/7/205 2: AM Styrene 4.9 µg/kg 2/7/205 2: AM tert-butylbenzene 4.9 µg/kg 2/7/205 2: AM Tetrachloroethene 4.9 µg/kg 2/7/205 2: AM Toluene 4.9 µg/kg 2/7/205 2: AM trans-,2-dichloroethene 4.9 µg/kg 2/7/205 2: AM Trichloroethene 4.9 µg/kg 2/7/205 2: AM Trichlorofluoromethane 4.9 µg/kg 2/7/205 2: AM Vinyl chloride 4.9 µg/kg 2/7/205 2: AM Surr:,2-Dichloroethane-d4 8 75-40 %REC 2/7/205 2: AM Surr: 4-Bromofluorobenzene 99.6 73-28 %REC 2/7/205 2: AM Surr: Dibromofluoromethane 5 78-33 %REC 2/7/205 2: AM Surr: Toluene-d8 05 80-20 %REC 2/7/205 2: AM GASOLINE RANGE ORGANICS BY GC/FID EPA 805B RunID: GC4_526A QC Batch: E5VS44 PrepDate: 2/6/205 Analyst: QBM GRO 0.95 mg/kg 2/6/205 03:2 PM Surr: Chlorobenzene - d5 07 46-54 %REC 2/6/205 03:2 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 7 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-05 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS3-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID EPA 3550B EPA 805B RunID: GC3_525E QC Batch: 55428 PrepDate: 2/5/205 Analyst: MDM DRO 3 0 mg/kg 2/7/205 0:44 AM ORO 20 0 mg/kg 2/7/205 0:44 AM Surr: p-terphenyl 94. 38-52 %REC 2/7/205 0:44 AM ORGANOCHLORINE PESTICIDES BY GC/ECD EPA 3550B EPA 808A RunID: GC8_526B QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM 4,4 -DDD 7. 2.0 µg/kg 2/6/205 05:56 PM 4,4 -DDE 9.0 2.0 µg/kg 2/6/205 05:56 PM 4,4 -DDT 9 2.0 µg/kg 2/6/205 05:56 PM Aldrin.0 µg/kg 2/6/205 05:56 PM alpha-bhc.0 µg/kg 2/6/205 05:56 PM alpha-chlordane 4.2.0 µg/kg 2/6/205 05:56 PM beta-bhc.0 µg/kg 2/6/205 05:56 PM Chlordane 32 8.5 µg/kg 2/6/205 05:56 PM delta-bhc.0 µg/kg 2/6/205 05:56 PM Dieldrin 2.0 µg/kg 2/6/205 05:56 PM Endosulfan I.0 µg/kg 2/6/205 05:56 PM Endosulfan II 2.0 µg/kg 2/6/205 05:56 PM Endosulfan sulfate 2.0 µg/kg 2/6/205 05:56 PM Endrin 2.0 µg/kg 2/6/205 05:56 PM Endrin aldehyde 2.0 µg/kg 2/6/205 05:56 PM Endrin ketone 2.0 µg/kg 2/6/205 05:56 PM gamma-bhc.0 µg/kg 2/6/205 05:56 PM gamma-chlordane 5.5.0 µg/kg 2/6/205 05:56 PM Heptachlor.0 µg/kg 2/6/205 05:56 PM Heptachlor epoxide.0 µg/kg 2/6/205 05:56 PM Methoxychlor 8.5 µg/kg 2/6/205 05:56 PM Toxaphene 85 µg/kg 2/6/205 05:56 PM Surr: Tetrachloro-m-xylene 56.0 26-20 %REC 2/6/205 05:56 PM Surr: Decachlorobiphenyl 5.3 3-3 %REC 2/6/205 05:56 PM PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 06 7 µg/kg 2/6/205 04: PM Aroclor 22 33 µg/kg 2/6/205 04: PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 8 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-05 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS3-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 232 7 µg/kg 2/6/205 04: PM Aroclor 242 7 µg/kg 2/6/205 04: PM Aroclor 248 7 µg/kg 2/6/205 04: PM Aroclor 254 7 µg/kg 2/6/205 04: PM Aroclor 260 7 µg/kg 2/6/205 04: PM Surr: Decachlorobiphenyl 96.4 34-47 %REC 2/6/205 04: PM Surr: Tetrachloro-m-xylene 70.5 30-8 %REC 2/6/205 04: PM HEXAVALENT CHROMIUM BY IC EPA 3060A EPA 799 RunID: IC_526A QC Batch: 55429 PrepDate: 2/5/205 Analyst: RB Hexavalent Chromium 0.20 mg/kg 2/6/205 0:09 PM TOTAL MERCURY BY COLD VAPOR TECHNIQUE EPA 747A RunID: AA_528A QC Batch: 55439 PrepDate: 2/6/205 Analyst: CEI Mercury 0.099 mg/kg 2/8/205 0:9 AM TOTAL METALS BY ICP EPA 3050B EPA 600B RunID: ICP2_526E QC Batch: 55425 PrepDate: 2/5/205 Analyst: CEI Antimony 2.0 mg/kg 2/6/205 0:44 PM Barium 52.0 mg/kg 2/6/205 0:44 PM Beryllium.0 mg/kg 2/6/205 0:44 PM Cadmium.0 mg/kg 2/6/205 0:44 PM Chromium 9.5.0 mg/kg 2/6/205 0:44 PM Cobalt 2.7.0 mg/kg 2/6/205 0:44 PM Copper 7.9 2.0 mg/kg 2/6/205 0:44 PM Lead 6.0.0 mg/kg 2/6/205 0:44 PM Molybdenum.0 mg/kg 2/6/205 0:44 PM Nickel 6.9.0 mg/kg 2/6/205 0:44 PM Selenium.0 mg/kg 2/6/205 0:44 PM Silver.0 mg/kg 2/6/205 0:44 PM Vanadium 5.0 mg/kg 2/6/205 0:44 PM Zinc 29.0 mg/kg 2/6/205 0:44 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 9 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-06 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS4 Collection Date: 2/4/205 0:5:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM,,,2-Tetrachloroethane 5.5 µg/kg 2/7/205 2:37 AM,,-Trichloroethane 5.5 µg/kg 2/7/205 2:37 AM,,2,2-Tetrachloroethane 5.5 µg/kg 2/7/205 2:37 AM,,2-Trichloroethane 5.5 µg/kg 2/7/205 2:37 AM,-Dichloroethane 5.5 µg/kg 2/7/205 2:37 AM,-Dichloroethene 5.5 µg/kg 2/7/205 2:37 AM,-Dichloropropene 5.5 µg/kg 2/7/205 2:37 AM,2,3-Trichlorobenzene 5.5 µg/kg 2/7/205 2:37 AM,2,3-Trichloropropane 5.5 µg/kg 2/7/205 2:37 AM,2,4-Trichlorobenzene 5.5 µg/kg 2/7/205 2:37 AM,2,4-Trimethylbenzene 5.5 µg/kg 2/7/205 2:37 AM,2-Dibromo-3-chloropropane µg/kg 2/7/205 2:37 AM,2-Dibromoethane 5.5 µg/kg 2/7/205 2:37 AM,2-Dichlorobenzene 5.5 µg/kg 2/7/205 2:37 AM,2-Dichloroethane 5.5 µg/kg 2/7/205 2:37 AM,2-Dichloropropane 5.5 µg/kg 2/7/205 2:37 AM,3,5-Trimethylbenzene 5.5 µg/kg 2/7/205 2:37 AM,3-Dichlorobenzene 5.5 µg/kg 2/7/205 2:37 AM,3-Dichloropropane 5.5 µg/kg 2/7/205 2:37 AM,4-Dichlorobenzene 5.5 µg/kg 2/7/205 2:37 AM 2,2-Dichloropropane 5.5 µg/kg 2/7/205 2:37 AM 2-Butanone 55 µg/kg 2/7/205 2:37 AM 2-Chlorotoluene 5.5 µg/kg 2/7/205 2:37 AM 4-Chlorotoluene 5.5 µg/kg 2/7/205 2:37 AM 4-Isopropyltoluene 5.5 µg/kg 2/7/205 2:37 AM Benzene 5.5 µg/kg 2/7/205 2:37 AM Bromobenzene 5.5 µg/kg 2/7/205 2:37 AM Bromodichloromethane 5.5 µg/kg 2/7/205 2:37 AM Bromoform 5.5 µg/kg 2/7/205 2:37 AM Bromomethane 5.5 µg/kg 2/7/205 2:37 AM Carbon tetrachloride 5.5 µg/kg 2/7/205 2:37 AM Chlorobenzene 5.5 µg/kg 2/7/205 2:37 AM Chloroethane 5.5 µg/kg 2/7/205 2:37 AM Chloroform 5.5 µg/kg 2/7/205 2:37 AM Chloromethane 5.5 µg/kg 2/7/205 2:37 AM cis-,2-dichloroethene 5.5 µg/kg 2/7/205 2:37 AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 2 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-06 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS4 Collection Date: 2/4/205 0:5:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM cis-,3-dichloropropene 5.5 µg/kg 2/7/205 2:37 AM Dibromochloromethane 5.5 µg/kg 2/7/205 2:37 AM Dibromomethane 5.5 µg/kg 2/7/205 2:37 AM Dichlorodifluoromethane 5.5 µg/kg 2/7/205 2:37 AM Ethylbenzene 5.5 µg/kg 2/7/205 2:37 AM Freon-3 5.5 µg/kg 2/7/205 2:37 AM Hexachlorobutadiene 5.5 µg/kg 2/7/205 2:37 AM Isopropylbenzene 5.5 µg/kg 2/7/205 2:37 AM m,p-xylene µg/kg 2/7/205 2:37 AM Methylene chloride 5.5 µg/kg 2/7/205 2:37 AM MTBE 5.5 µg/kg 2/7/205 2:37 AM n-butylbenzene 5.5 µg/kg 2/7/205 2:37 AM n-propylbenzene 5.5 µg/kg 2/7/205 2:37 AM Naphthalene 5.5 µg/kg 2/7/205 2:37 AM o-xylene 5.5 µg/kg 2/7/205 2:37 AM sec-butylbenzene 5.5 µg/kg 2/7/205 2:37 AM Styrene 5.5 µg/kg 2/7/205 2:37 AM tert-butylbenzene 5.5 µg/kg 2/7/205 2:37 AM Tetrachloroethene 5.5 µg/kg 2/7/205 2:37 AM Toluene 5.5 µg/kg 2/7/205 2:37 AM trans-,2-dichloroethene 5.5 µg/kg 2/7/205 2:37 AM Trichloroethene 5.5 µg/kg 2/7/205 2:37 AM Trichlorofluoromethane 5.5 µg/kg 2/7/205 2:37 AM Vinyl chloride 5.5 µg/kg 2/7/205 2:37 AM Surr:,2-Dichloroethane-d4 27 75-40 %REC 2/7/205 2:37 AM Surr: 4-Bromofluorobenzene 02 73-28 %REC 2/7/205 2:37 AM Surr: Dibromofluoromethane 24 78-33 %REC 2/7/205 2:37 AM Surr: Toluene-d8 08 80-20 %REC 2/7/205 2:37 AM GASOLINE RANGE ORGANICS BY GC/FID EPA 805B RunID: GC4_526A QC Batch: E5VS44 PrepDate: 2/6/205 Analyst: QBM GRO.2 mg/kg 2/6/205 03:46 PM Surr: Chlorobenzene - d5 60.8 46-54 %REC 2/6/205 03:46 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 22 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-020 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS4-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID EPA 3550B EPA 805B RunID: GC3_525E QC Batch: 55428 PrepDate: 2/5/205 Analyst: MDM DRO 0 mg/kg 2/7/205 02:0 AM ORO 5 0 mg/kg 2/7/205 02:0 AM Surr: p-terphenyl 96.2 38-52 %REC 2/7/205 02:0 AM ORGANOCHLORINE PESTICIDES BY GC/ECD EPA 3550B EPA 808A RunID: GC8_526B QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM 4,4 -DDD 6.7 2.0 µg/kg 2/6/205 06:8 PM 4,4 -DDE 9.8 2.0 µg/kg 2/6/205 06:8 PM 4,4 -DDT 6 2.0 µg/kg 2/6/205 06:8 PM Aldrin.0 µg/kg 2/6/205 06:8 PM alpha-bhc.0 µg/kg 2/6/205 06:8 PM alpha-chlordane 2.9.0 µg/kg 2/6/205 06:8 PM beta-bhc.0 µg/kg 2/6/205 06:8 PM Chlordane 26 8.5 µg/kg 2/6/205 06:8 PM delta-bhc.0 µg/kg 2/6/205 06:8 PM Dieldrin 2.0 µg/kg 2/6/205 06:8 PM Endosulfan I.0 µg/kg 2/6/205 06:8 PM Endosulfan II 2.0 µg/kg 2/6/205 06:8 PM Endosulfan sulfate 2.0 µg/kg 2/6/205 06:8 PM Endrin 2.0 µg/kg 2/6/205 06:8 PM Endrin aldehyde 2.0 µg/kg 2/6/205 06:8 PM Endrin ketone 2.0 µg/kg 2/6/205 06:8 PM gamma-bhc.0 µg/kg 2/6/205 06:8 PM gamma-chlordane 4.0.0 µg/kg 2/6/205 06:8 PM Heptachlor.0 µg/kg 2/6/205 06:8 PM Heptachlor epoxide.0 µg/kg 2/6/205 06:8 PM Methoxychlor 8.5 µg/kg 2/6/205 06:8 PM Toxaphene 85 µg/kg 2/6/205 06:8 PM Surr: Tetrachloro-m-xylene 64.5 26-20 %REC 2/6/205 06:8 PM Surr: Decachlorobiphenyl 54.2 3-3 %REC 2/6/205 06:8 PM PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 06 7 µg/kg 2/6/205 04:34 PM Aroclor 22 33 µg/kg 2/6/205 04:34 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 23 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-020 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS4-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 232 7 µg/kg 2/6/205 04:34 PM Aroclor 242 7 µg/kg 2/6/205 04:34 PM Aroclor 248 7 µg/kg 2/6/205 04:34 PM Aroclor 254 7 µg/kg 2/6/205 04:34 PM Aroclor 260 7 µg/kg 2/6/205 04:34 PM Surr: Decachlorobiphenyl 97.2 34-47 %REC 2/6/205 04:34 PM Surr: Tetrachloro-m-xylene 82.8 30-8 %REC 2/6/205 04:34 PM HEXAVALENT CHROMIUM BY IC EPA 3060A EPA 799 RunID: IC_526A QC Batch: 55429 PrepDate: 2/5/205 Analyst: RB Hexavalent Chromium 0.20 mg/kg 2/6/205 09:0 PM TOTAL MERCURY BY COLD VAPOR TECHNIQUE EPA 747A RunID: AA_528A QC Batch: 55439 PrepDate: 2/6/205 Analyst: CEI Mercury 0.0 mg/kg 2/8/205 0:28 AM TOTAL METALS BY ICP EPA 3050B EPA 600B RunID: ICP2_526E QC Batch: 55425 PrepDate: 2/5/205 Analyst: CEI Antimony 2.0 mg/kg 2/6/205 0:50 PM Barium 65.0 mg/kg 2/6/205 0:50 PM Beryllium.0 mg/kg 2/6/205 0:50 PM Cadmium.0 mg/kg 2/6/205 0:50 PM Chromium 2.0 mg/kg 2/6/205 0:50 PM Cobalt 3.2.0 mg/kg 2/6/205 0:50 PM Copper 7.7 2.0 mg/kg 2/6/205 0:50 PM Lead 7.0.0 mg/kg 2/6/205 0:50 PM Molybdenum.0 mg/kg 2/6/205 0:50 PM Nickel 9..0 mg/kg 2/6/205 0:50 PM Selenium.0 mg/kg 2/6/205 0:50 PM Silver.0 mg/kg 2/6/205 0:50 PM Vanadium 9.0 mg/kg 2/6/205 0:50 PM Zinc 29.0 mg/kg 2/6/205 0:50 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 24 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-02 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS5 Collection Date: 2/4/205 0:35:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM,,,2-Tetrachloroethane 7.0 µg/kg 2/7/205 0:02 AM,,-Trichloroethane 7.0 µg/kg 2/7/205 0:02 AM,,2,2-Tetrachloroethane 7.0 µg/kg 2/7/205 0:02 AM,,2-Trichloroethane 7.0 µg/kg 2/7/205 0:02 AM,-Dichloroethane 7.0 µg/kg 2/7/205 0:02 AM,-Dichloroethene 7.0 µg/kg 2/7/205 0:02 AM,-Dichloropropene 7.0 µg/kg 2/7/205 0:02 AM,2,3-Trichlorobenzene 7.0 µg/kg 2/7/205 0:02 AM,2,3-Trichloropropane 7.0 µg/kg 2/7/205 0:02 AM,2,4-Trichlorobenzene 7.0 µg/kg 2/7/205 0:02 AM,2,4-Trimethylbenzene 7.0 µg/kg 2/7/205 0:02 AM,2-Dibromo-3-chloropropane 4 µg/kg 2/7/205 0:02 AM,2-Dibromoethane 7.0 µg/kg 2/7/205 0:02 AM,2-Dichlorobenzene 7.0 µg/kg 2/7/205 0:02 AM,2-Dichloroethane 7.0 µg/kg 2/7/205 0:02 AM,2-Dichloropropane 7.0 µg/kg 2/7/205 0:02 AM,3,5-Trimethylbenzene 7.0 µg/kg 2/7/205 0:02 AM,3-Dichlorobenzene 7.0 µg/kg 2/7/205 0:02 AM,3-Dichloropropane 7.0 µg/kg 2/7/205 0:02 AM,4-Dichlorobenzene 7.0 µg/kg 2/7/205 0:02 AM 2,2-Dichloropropane 7.0 µg/kg 2/7/205 0:02 AM 2-Butanone 70 µg/kg 2/7/205 0:02 AM 2-Chlorotoluene 7.0 µg/kg 2/7/205 0:02 AM 4-Chlorotoluene 7.0 µg/kg 2/7/205 0:02 AM 4-Isopropyltoluene 7.0 µg/kg 2/7/205 0:02 AM Benzene 7.0 µg/kg 2/7/205 0:02 AM Bromobenzene 7.0 µg/kg 2/7/205 0:02 AM Bromodichloromethane 7.0 µg/kg 2/7/205 0:02 AM Bromoform 7.0 µg/kg 2/7/205 0:02 AM Bromomethane 7.0 µg/kg 2/7/205 0:02 AM Carbon tetrachloride 7.0 µg/kg 2/7/205 0:02 AM Chlorobenzene 7.0 µg/kg 2/7/205 0:02 AM Chloroethane 7.0 µg/kg 2/7/205 0:02 AM Chloroform 7.0 µg/kg 2/7/205 0:02 AM Chloromethane 7.0 µg/kg 2/7/205 0:02 AM cis-,2-dichloroethene 7.0 µg/kg 2/7/205 0:02 AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 26 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-02 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS5 Collection Date: 2/4/205 0:35:00 AM Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed VOLATILE ORGANIC COMPOUS BY GC/MS EPA 8260B RunID: MS8_526A QC Batch: R5VS048 PrepDate: 2/7/205 Analyst: QBM cis-,3-dichloropropene 7.0 µg/kg 2/7/205 0:02 AM Dibromochloromethane 7.0 µg/kg 2/7/205 0:02 AM Dibromomethane 7.0 µg/kg 2/7/205 0:02 AM Dichlorodifluoromethane 7.0 µg/kg 2/7/205 0:02 AM Ethylbenzene 7.0 µg/kg 2/7/205 0:02 AM Freon-3 7.0 µg/kg 2/7/205 0:02 AM Hexachlorobutadiene 7.0 µg/kg 2/7/205 0:02 AM Isopropylbenzene 7.0 µg/kg 2/7/205 0:02 AM m,p-xylene 4 µg/kg 2/7/205 0:02 AM Methylene chloride 7.0 µg/kg 2/7/205 0:02 AM MTBE 7.0 µg/kg 2/7/205 0:02 AM n-butylbenzene 7.0 µg/kg 2/7/205 0:02 AM n-propylbenzene 7.0 µg/kg 2/7/205 0:02 AM Naphthalene 7.0 µg/kg 2/7/205 0:02 AM o-xylene 7.0 µg/kg 2/7/205 0:02 AM sec-butylbenzene 7.0 µg/kg 2/7/205 0:02 AM Styrene 7.0 µg/kg 2/7/205 0:02 AM tert-butylbenzene 7.0 µg/kg 2/7/205 0:02 AM Tetrachloroethene 7.0 µg/kg 2/7/205 0:02 AM Toluene 7.0 µg/kg 2/7/205 0:02 AM trans-,2-dichloroethene 7.0 µg/kg 2/7/205 0:02 AM Trichloroethene 7.0 µg/kg 2/7/205 0:02 AM Trichlorofluoromethane 7.0 µg/kg 2/7/205 0:02 AM Vinyl chloride 7.0 µg/kg 2/7/205 0:02 AM Surr:,2-Dichloroethane-d4 36 75-40 %REC 2/7/205 0:02 AM Surr: 4-Bromofluorobenzene 02 73-28 %REC 2/7/205 0:02 AM Surr: Dibromofluoromethane 30 78-33 %REC 2/7/205 0:02 AM Surr: Toluene-d8 4 80-20 %REC 2/7/205 0:02 AM GASOLINE RANGE ORGANICS BY GC/FID EPA 805B RunID: GC4_526A QC Batch: E5VS44 PrepDate: 2/6/205 Analyst: QBM GRO.3 mg/kg 2/6/205 06:06 PM Surr: Chlorobenzene - d5 64. 46-54 %REC 2/6/205 06:06 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 27 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-025 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS5-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID EPA 3550B EPA 805B RunID: GC3_525E QC Batch: 55428 PrepDate: 2/5/205 Analyst: MDM DRO 2 0 mg/kg 2/7/205 02:36 AM ORO 9 0 mg/kg 2/7/205 02:36 AM Surr: p-terphenyl 93.9 38-52 %REC 2/7/205 02:36 AM ORGANOCHLORINE PESTICIDES BY GC/ECD EPA 3550B EPA 808A RunID: GC8_526B QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM 4,4 -DDD 7.8 2.0 µg/kg 2/6/205 06:4 PM 4,4 -DDE 60 2.0 µg/kg 2/6/205 06:4 PM 4,4 -DDT 20 2.0 µg/kg 2/6/205 06:4 PM Aldrin.0 µg/kg 2/6/205 06:4 PM alpha-bhc.0 µg/kg 2/6/205 06:4 PM alpha-chlordane.0 µg/kg 2/6/205 06:4 PM beta-bhc.0 µg/kg 2/6/205 06:4 PM Chlordane 22 8.5 µg/kg 2/6/205 06:4 PM delta-bhc.0 µg/kg 2/6/205 06:4 PM Dieldrin 2.0 µg/kg 2/6/205 06:4 PM Endosulfan I.0 µg/kg 2/6/205 06:4 PM Endosulfan II 2.0 µg/kg 2/6/205 06:4 PM Endosulfan sulfate 2.0 µg/kg 2/6/205 06:4 PM Endrin 2.0 µg/kg 2/6/205 06:4 PM Endrin aldehyde 2.0 µg/kg 2/6/205 06:4 PM Endrin ketone 2.0 µg/kg 2/6/205 06:4 PM gamma-bhc.0 µg/kg 2/6/205 06:4 PM gamma-chlordane 6.9.0 µg/kg 2/6/205 06:4 PM Heptachlor.0 µg/kg 2/6/205 06:4 PM Heptachlor epoxide.0 µg/kg 2/6/205 06:4 PM Methoxychlor 8.5 µg/kg 2/6/205 06:4 PM Toxaphene 85 µg/kg 2/6/205 06:4 PM Surr: Tetrachloro-m-xylene 67. 26-20 %REC 2/6/205 06:4 PM Surr: Decachlorobiphenyl 55.2 3-3 %REC 2/6/205 06:4 PM PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 06 6 µg/kg 2/6/205 05:04 PM Aroclor 22 33 µg/kg 2/6/205 05:04 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 28 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-025 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS5-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result PQL Qual Units DF Date Analyzed PCBS BY GC/ECD EPA 3550B EPA 8082 RunID: GC7_526A QC Batch: 55435 PrepDate: 2/6/205 Analyst: MDM Aroclor 232 6 µg/kg 2/6/205 05:04 PM Aroclor 242 6 µg/kg 2/6/205 05:04 PM Aroclor 248 6 µg/kg 2/6/205 05:04 PM Aroclor 254 6 µg/kg 2/6/205 05:04 PM Aroclor 260 6 µg/kg 2/6/205 05:04 PM Surr: Decachlorobiphenyl 95.8 34-47 %REC 2/6/205 05:04 PM Surr: Tetrachloro-m-xylene 83.5 30-8 %REC 2/6/205 05:04 PM HEXAVALENT CHROMIUM BY IC EPA 3060A EPA 799 RunID: IC_526A QC Batch: 55429 PrepDate: 2/5/205 Analyst: RB Hexavalent Chromium 0.73 0.20 mg/kg 2/6/205 09:24 PM TOTAL MERCURY BY COLD VAPOR TECHNIQUE EPA 747A RunID: AA_528A QC Batch: 55439 PrepDate: 2/6/205 Analyst: CEI Mercury 0.0 mg/kg 2/8/205 0:30 AM TOTAL METALS BY ICP EPA 3050B EPA 600B RunID: ICP2_526E QC Batch: 55425 PrepDate: 2/5/205 Analyst: CEI Antimony 2.0 mg/kg 2/6/205 0:56 PM Barium 450.0 mg/kg 2/6/205 0:56 PM Beryllium.0 mg/kg 2/6/205 0:56 PM Cadmium..0 mg/kg 2/6/205 0:56 PM Chromium 38.0 mg/kg 2/6/205 0:56 PM Cobalt 9.9.0 mg/kg 2/6/205 0:56 PM Copper 33 2.0 mg/kg 2/6/205 0:56 PM Lead 6.7.0 mg/kg 2/6/205 0:56 PM Molybdenum.0 mg/kg 2/6/205 0:56 PM Nickel 35.0 mg/kg 2/6/205 0:56 PM Selenium 2.0.0 mg/kg 2/6/205 0:56 PM Silver.0 mg/kg 2/6/205 0:56 PM Vanadium 60.0 mg/kg 2/6/205 0:56 PM Zinc 86.0 mg/kg 2/6/205 0:56 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 29 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-005 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM,2,4-Trichlorobenzene 42 330 µg/kg 2/5/205 09:5 PM,2-Dichlorobenzene 4 330 µg/kg 2/5/205 09:5 PM,3-Dichlorobenzene 49 330 µg/kg 2/5/205 09:5 PM,4-Dichlorobenzene 42 330 µg/kg 2/5/205 09:5 PM 2,4,5-Trichlorophenol 4 330 µg/kg 2/5/205 09:5 PM 2,4,6-Trichlorophenol 39 330 µg/kg 2/5/205 09:5 PM 2,4-Dichlorophenol 40 600 µg/kg 2/5/205 09:5 PM 2,4-Dimethylphenol 90 330 µg/kg 2/5/205 09:5 PM 2,4-Dinitrophenol 27 600 µg/kg 2/5/205 09:5 PM 2,4-Dinitrotoluene 44 330 µg/kg 2/5/205 09:5 PM 2,6-Dinitrotoluene 43 330 µg/kg 2/5/205 09:5 PM 2-Chloronaphthalene 45 330 µg/kg 2/5/205 09:5 PM 2-Chlorophenol 43 330 µg/kg 2/5/205 09:5 PM 2-Methylnaphthalene 70 330 µg/kg 2/5/205 09:5 PM 2-Methylphenol 48 330 µg/kg 2/5/205 09:5 PM 2-Nitroaniline 53 600 µg/kg 2/5/205 09:5 PM 2-Nitrophenol 45 330 µg/kg 2/5/205 09:5 PM 3,3 -Dichlorobenzidine 24 660 µg/kg 2/5/205 09:5 PM 3-Nitroaniline 48 600 µg/kg 2/5/205 09:5 PM 4,6-Dinitro-2-methylphenol 52 600 µg/kg 2/5/205 09:5 PM 4-Bromophenyl-phenylether 45 330 µg/kg 2/5/205 09:5 PM 4-Chloro-3-methylphenol 40 660 µg/kg 2/5/205 09:5 PM 4-Chloroaniline 44 660 µg/kg 2/5/205 09:5 PM 4-Chlorophenyl-phenylether 45 330 µg/kg 2/5/205 09:5 PM 4-Methylphenol 36 330 µg/kg 2/5/205 09:5 PM 4-Nitroaniline 46 600 µg/kg 2/5/205 09:5 PM 4-Nitrophenol 35 600 µg/kg 2/5/205 09:5 PM Acenaphthene 4 330 µg/kg 2/5/205 09:5 PM Acenaphthylene 37 330 µg/kg 2/5/205 09:5 PM Anthracene 64 330 µg/kg 2/5/205 09:5 PM Benzidine (M) 450 600 µg/kg 2/5/205 09:5 PM Benzo(a)anthracene 75 330 µg/kg 2/5/205 09:5 PM Benzo(a)pyrene 64 200 µg/kg 2/5/205 09:5 PM Benzo(b)fluoranthene 40 330 µg/kg 2/5/205 09:5 PM Benzo(g,h,i)perylene 48 330 µg/kg 2/5/205 09:5 PM Benzo(k)fluoranthene 57 330 µg/kg 2/5/205 09:5 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 3 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-005 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM Benzoic acid 0 600 µg/kg 2/5/205 09:5 PM Benzyl alcohol 68 660 µg/kg 2/5/205 09:5 PM Bis(2-chloroethoxy)methane 64 330 µg/kg 2/5/205 09:5 PM Bis(2-chloroethyl)ether 62 330 µg/kg 2/5/205 09:5 PM Bis(2-chloroisopropyl)ether 57 330 µg/kg 2/5/205 09:5 PM Bis(2-ethylhexyl)phthalate 80 330 µg/kg 2/5/205 09:5 PM Butylbenzylphthalate 67 330 µg/kg 2/5/205 09:5 PM Chrysene 80 330 µg/kg 2/5/205 09:5 PM Di-n-butylphthalate 4 330 µg/kg 2/5/205 09:5 PM Di-n-octylphthalate 5 330 µg/kg 2/5/205 09:5 PM Dibenz(a,h)anthracene 93 200 µg/kg 2/5/205 09:5 PM Dibenzofuran 40 330 µg/kg 2/5/205 09:5 PM Diethylphthalate 44 330 µg/kg 2/5/205 09:5 PM Dimethylphthalate 43 330 µg/kg 2/5/205 09:5 PM Fluoranthene 62 330 µg/kg 2/5/205 09:5 PM Fluorene 45 330 µg/kg 2/5/205 09:5 PM Hexachlorobenzene 47 330 µg/kg 2/5/205 09:5 PM Hexachlorobutadiene 6 660 µg/kg 2/5/205 09:5 PM Hexachlorocyclopentadiene 38 660 µg/kg 2/5/205 09:5 PM Hexachloroethane 42 330 µg/kg 2/5/205 09:5 PM Indeno(,2,3-cd)pyrene 39 330 µg/kg 2/5/205 09:5 PM Isophorone 59 330 µg/kg 2/5/205 09:5 PM N-Nitrosodi-n-propylamine 46 330 µg/kg 2/5/205 09:5 PM N-Nitrosodiphenylamine 48 330 µg/kg 2/5/205 09:5 PM Naphthalene 48 330 µg/kg 2/5/205 09:5 PM Nitrobenzene 57 330 µg/kg 2/5/205 09:5 PM Pentachlorophenol 34 600 µg/kg 2/5/205 09:5 PM Phenanthrene 83 330 µg/kg 2/5/205 09:5 PM Phenol 38 330 µg/kg 2/5/205 09:5 PM Pyrene 47 330 µg/kg 2/5/205 09:5 PM Surr:,2-Dichlorobenzene-d4 23. 0 2-20 %REC 2/5/205 09:5 PM Surr: 2,4,6-Tribromophenol 7. 0 25-29 %REC 2/5/205 09:5 PM Surr: 2-Chlorophenol-d4 29.6 0 24-20 %REC 2/5/205 09:5 PM Surr: 2-Fluorobiphenyl 35.6 0 33-20 %REC 2/5/205 09:5 PM Surr: 2-Fluorophenol 27.6 0 2-20 %REC 2/5/205 09:5 PM Surr: 4-Terphenyl-d4 85.7 0 37-35 %REC 2/5/205 09:5 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 32 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-00 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS2-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM,2,4-Trichlorobenzene 42 330 µg/kg 2/6/205 2:9 AM,2-Dichlorobenzene 4 330 µg/kg 2/6/205 2:9 AM,3-Dichlorobenzene 49 330 µg/kg 2/6/205 2:9 AM,4-Dichlorobenzene 42 330 µg/kg 2/6/205 2:9 AM 2,4,5-Trichlorophenol 4 330 µg/kg 2/6/205 2:9 AM 2,4,6-Trichlorophenol 39 330 µg/kg 2/6/205 2:9 AM 2,4-Dichlorophenol 40 600 µg/kg 2/6/205 2:9 AM 2,4-Dimethylphenol 90 330 µg/kg 2/6/205 2:9 AM 2,4-Dinitrophenol 27 600 µg/kg 2/6/205 2:9 AM 2,4-Dinitrotoluene 44 330 µg/kg 2/6/205 2:9 AM 2,6-Dinitrotoluene 43 330 µg/kg 2/6/205 2:9 AM 2-Chloronaphthalene 45 330 µg/kg 2/6/205 2:9 AM 2-Chlorophenol 43 330 µg/kg 2/6/205 2:9 AM 2-Methylnaphthalene 70 330 µg/kg 2/6/205 2:9 AM 2-Methylphenol 48 330 µg/kg 2/6/205 2:9 AM 2-Nitroaniline 53 600 µg/kg 2/6/205 2:9 AM 2-Nitrophenol 45 330 µg/kg 2/6/205 2:9 AM 3,3 -Dichlorobenzidine 24 660 µg/kg 2/6/205 2:9 AM 3-Nitroaniline 48 600 µg/kg 2/6/205 2:9 AM 4,6-Dinitro-2-methylphenol 52 600 µg/kg 2/6/205 2:9 AM 4-Bromophenyl-phenylether 45 330 µg/kg 2/6/205 2:9 AM 4-Chloro-3-methylphenol 40 660 µg/kg 2/6/205 2:9 AM 4-Chloroaniline 44 660 µg/kg 2/6/205 2:9 AM 4-Chlorophenyl-phenylether 45 330 µg/kg 2/6/205 2:9 AM 4-Methylphenol 36 330 µg/kg 2/6/205 2:9 AM 4-Nitroaniline 46 600 µg/kg 2/6/205 2:9 AM 4-Nitrophenol 35 600 µg/kg 2/6/205 2:9 AM Acenaphthene 4 330 µg/kg 2/6/205 2:9 AM Acenaphthylene 37 330 µg/kg 2/6/205 2:9 AM Anthracene 64 330 µg/kg 2/6/205 2:9 AM Benzidine (M) 450 600 µg/kg 2/6/205 2:9 AM Benzo(a)anthracene 75 330 µg/kg 2/6/205 2:9 AM Benzo(a)pyrene 640 2000 µg/kg 0 2/8/205 04:43 AM Benzo(b)fluoranthene 400 3300 µg/kg 0 2/8/205 04:43 AM Benzo(g,h,i)perylene 480 3300 µg/kg 0 2/8/205 04:43 AM Benzo(k)fluoranthene 570 3300 µg/kg 0 2/8/205 04:43 AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 34 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-00 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS2-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM Benzoic acid 0 600 µg/kg 2/6/205 2:9 AM Benzyl alcohol 68 660 µg/kg 2/6/205 2:9 AM Bis(2-chloroethoxy)methane 64 330 µg/kg 2/6/205 2:9 AM Bis(2-chloroethyl)ether 62 330 µg/kg 2/6/205 2:9 AM Bis(2-chloroisopropyl)ether 57 330 µg/kg 2/6/205 2:9 AM Bis(2-ethylhexyl)phthalate 80 330 µg/kg 2/6/205 2:9 AM Butylbenzylphthalate 67 330 µg/kg 2/6/205 2:9 AM Chrysene 80 330 µg/kg 2/6/205 2:9 AM Di-n-butylphthalate 4 330 µg/kg 2/6/205 2:9 AM Di-n-octylphthalate 50 3300 µg/kg 0 2/8/205 04:43 AM Dibenz(a,h)anthracene 930 2000 µg/kg 0 2/8/205 04:43 AM Dibenzofuran 40 330 µg/kg 2/6/205 2:9 AM Diethylphthalate 44 330 µg/kg 2/6/205 2:9 AM Dimethylphthalate 43 330 µg/kg 2/6/205 2:9 AM Fluoranthene 62 330 µg/kg 2/6/205 2:9 AM Fluorene 45 330 µg/kg 2/6/205 2:9 AM Hexachlorobenzene 47 330 µg/kg 2/6/205 2:9 AM Hexachlorobutadiene 6 660 µg/kg 2/6/205 2:9 AM Hexachlorocyclopentadiene 38 660 µg/kg 2/6/205 2:9 AM Hexachloroethane 42 330 µg/kg 2/6/205 2:9 AM Indeno(,2,3-cd)pyrene 390 3300 µg/kg 0 2/8/205 04:43 AM Isophorone 59 330 µg/kg 2/6/205 2:9 AM N-Nitrosodi-n-propylamine 46 330 µg/kg 2/6/205 2:9 AM N-Nitrosodiphenylamine 48 330 µg/kg 2/6/205 2:9 AM Naphthalene 48 330 µg/kg 2/6/205 2:9 AM Nitrobenzene 57 330 µg/kg 2/6/205 2:9 AM Pentachlorophenol 34 600 µg/kg 2/6/205 2:9 AM Phenanthrene 83 330 µg/kg 2/6/205 2:9 AM Phenol 38 330 µg/kg 2/6/205 2:9 AM Pyrene 47 330 µg/kg 2/6/205 2:9 AM Surr:,2-Dichlorobenzene-d4 47.4 0 2-20 %REC 2/6/205 2:9 AM Surr: 2,4,6-Tribromophenol 77.0 0 25-29 %REC 2/6/205 2:9 AM Surr: 2-Chlorophenol-d4 59.2 0 24-20 %REC 2/6/205 2:9 AM Surr: 2-Fluorobiphenyl 57.6 0 33-20 %REC 2/6/205 2:9 AM Surr: 2-Fluorophenol 57.2 0 2-20 %REC 2/6/205 2:9 AM Surr: 4-Terphenyl-d4 82.8 0 37-35 %REC 2/6/205 2:9 AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-05 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS3-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM,2,4-Trichlorobenzene 420 3300 µg/kg 0 2/6/205 2:45 AM,2-Dichlorobenzene 40 3300 µg/kg 0 2/6/205 2:45 AM,3-Dichlorobenzene 490 3300 µg/kg 0 2/6/205 2:45 AM,4-Dichlorobenzene 40 3300 µg/kg 0 2/6/205 2:45 AM 2,4,5-Trichlorophenol 40 3300 µg/kg 0 2/6/205 2:45 AM 2,4,6-Trichlorophenol 390 3300 µg/kg 0 2/6/205 2:45 AM 2,4-Dichlorophenol 400 6000 µg/kg 0 2/6/205 2:45 AM 2,4-Dimethylphenol 900 3300 µg/kg 0 2/6/205 2:45 AM 2,4-Dinitrophenol 270 6000 µg/kg 0 2/6/205 2:45 AM 2,4-Dinitrotoluene 440 3300 µg/kg 0 2/6/205 2:45 AM 2,6-Dinitrotoluene 430 3300 µg/kg 0 2/6/205 2:45 AM 2-Chloronaphthalene 450 3300 µg/kg 0 2/6/205 2:45 AM 2-Chlorophenol 430 3300 µg/kg 0 2/6/205 2:45 AM 2-Methylnaphthalene 600 3300 µg/kg 0 2/6/205 2:45 AM 2-Methylphenol 480 3300 µg/kg 0 2/6/205 2:45 AM 2-Nitroaniline 530 6000 µg/kg 0 2/6/205 2:45 AM 2-Nitrophenol 450 3300 µg/kg 0 2/6/205 2:45 AM 3,3 -Dichlorobenzidine 240 6600 µg/kg 0 2/6/205 2:45 AM 3-Nitroaniline 480 6000 µg/kg 0 2/6/205 2:45 AM 4,6-Dinitro-2-methylphenol 520 6000 µg/kg 0 2/6/205 2:45 AM 4-Bromophenyl-phenylether 450 3300 µg/kg 0 2/6/205 2:45 AM 4-Chloro-3-methylphenol 400 6600 µg/kg 0 2/6/205 2:45 AM 4-Chloroaniline 440 6600 µg/kg 0 2/6/205 2:45 AM 4-Chlorophenyl-phenylether 450 3300 µg/kg 0 2/6/205 2:45 AM 4-Methylphenol 360 3300 µg/kg 0 2/6/205 2:45 AM 4-Nitroaniline 460 6000 µg/kg 0 2/6/205 2:45 AM 4-Nitrophenol 350 6000 µg/kg 0 2/6/205 2:45 AM Acenaphthene 400 3300 µg/kg 0 2/6/205 2:45 AM Acenaphthylene 370 3300 µg/kg 0 2/6/205 2:45 AM Anthracene 640 3300 µg/kg 0 2/6/205 2:45 AM Benzidine (M) 4500 6000 µg/kg 0 2/6/205 2:45 AM Benzo(a)anthracene 750 3300 µg/kg 0 2/6/205 2:45 AM Benzo(a)pyrene 6400 20000 µg/kg 00 2/8/205 04:6 AM Benzo(b)fluoranthene 4000 33000 µg/kg 00 2/8/205 04:6 AM Benzo(g,h,i)perylene 4800 33000 µg/kg 00 2/8/205 04:6 AM Benzo(k)fluoranthene 5600 33000 µg/kg 00 2/8/205 04:6 AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 37 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-05 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS3-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM Benzoic acid 00 6000 µg/kg 0 2/6/205 2:45 AM Benzyl alcohol 680 6600 µg/kg 0 2/6/205 2:45 AM Bis(2-chloroethoxy)methane 640 3300 µg/kg 0 2/6/205 2:45 AM Bis(2-chloroethyl)ether 620 3300 µg/kg 0 2/6/205 2:45 AM Bis(2-chloroisopropyl)ether 570 3300 µg/kg 0 2/6/205 2:45 AM Bis(2-ethylhexyl)phthalate 800 3300 µg/kg 0 2/6/205 2:45 AM Butylbenzylphthalate 670 3300 µg/kg 0 2/6/205 2:45 AM Chrysene 800 3300 µg/kg 0 2/6/205 2:45 AM Di-n-butylphthalate 40 3300 µg/kg 0 2/6/205 2:45 AM Di-n-octylphthalate 500 33000 µg/kg 00 2/8/205 04:6 AM Dibenz(a,h)anthracene 9300 20000 µg/kg 00 2/8/205 04:6 AM Dibenzofuran 400 3300 µg/kg 0 2/6/205 2:45 AM Diethylphthalate 440 3300 µg/kg 0 2/6/205 2:45 AM Dimethylphthalate 430 3300 µg/kg 0 2/6/205 2:45 AM Fluoranthene 60 3300 µg/kg 0 2/6/205 2:45 AM Fluorene 450 3300 µg/kg 0 2/6/205 2:45 AM Hexachlorobenzene 470 3300 µg/kg 0 2/6/205 2:45 AM Hexachlorobutadiene 600 6600 µg/kg 0 2/6/205 2:45 AM Hexachlorocyclopentadiene 380 6600 µg/kg 0 2/6/205 2:45 AM Hexachloroethane 420 3300 µg/kg 0 2/6/205 2:45 AM Indeno(,2,3-cd)pyrene 3900 33000 µg/kg 00 2/8/205 04:6 AM Isophorone 590 3300 µg/kg 0 2/6/205 2:45 AM N-Nitrosodi-n-propylamine 460 3300 µg/kg 0 2/6/205 2:45 AM N-Nitrosodiphenylamine 480 3300 µg/kg 0 2/6/205 2:45 AM Naphthalene 480 3300 µg/kg 0 2/6/205 2:45 AM Nitrobenzene 570 3300 µg/kg 0 2/6/205 2:45 AM Pentachlorophenol 340 6000 µg/kg 0 2/6/205 2:45 AM Phenanthrene 830 3300 µg/kg 0 2/6/205 2:45 AM Phenol 380 3300 µg/kg 0 2/6/205 2:45 AM Pyrene 470 3300 µg/kg 0 2/6/205 2:45 AM Surr:,2-Dichlorobenzene-d4 60.0 0 2-20 %REC 0 2/6/205 2:45 AM Surr: 2,4,6-Tribromophenol 64.2 0 25-29 %REC 0 2/6/205 2:45 AM Surr: 2-Chlorophenol-d4 7.4 0 24-20 %REC 0 2/6/205 2:45 AM Surr: 2-Fluorobiphenyl 63. 0 33-20 %REC 0 2/6/205 2:45 AM Surr: 2-Fluorophenol 68.9 0 2-20 %REC 0 2/6/205 2:45 AM Surr: 4-Terphenyl-d4 72.5 0 37-35 %REC 0 2/6/205 2:45 AM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 38 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-020 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS4-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM,2,4-Trichlorobenzene 43 330 µg/kg 2/5/205 09:4 PM,2-Dichlorobenzene 4 330 µg/kg 2/5/205 09:4 PM,3-Dichlorobenzene 49 330 µg/kg 2/5/205 09:4 PM,4-Dichlorobenzene 42 330 µg/kg 2/5/205 09:4 PM 2,4,5-Trichlorophenol 4 330 µg/kg 2/5/205 09:4 PM 2,4,6-Trichlorophenol 39 330 µg/kg 2/5/205 09:4 PM 2,4-Dichlorophenol 4 700 µg/kg 2/5/205 09:4 PM 2,4-Dimethylphenol 90 330 µg/kg 2/5/205 09:4 PM 2,4-Dinitrophenol 27 700 µg/kg 2/5/205 09:4 PM 2,4-Dinitrotoluene 44 330 µg/kg 2/5/205 09:4 PM 2,6-Dinitrotoluene 43 330 µg/kg 2/5/205 09:4 PM 2-Chloronaphthalene 45 330 µg/kg 2/5/205 09:4 PM 2-Chlorophenol 43 330 µg/kg 2/5/205 09:4 PM 2-Methylnaphthalene 70 330 µg/kg 2/5/205 09:4 PM 2-Methylphenol 48 330 µg/kg 2/5/205 09:4 PM 2-Nitroaniline 54 700 µg/kg 2/5/205 09:4 PM 2-Nitrophenol 45 330 µg/kg 2/5/205 09:4 PM 3,3 -Dichlorobenzidine 24 660 µg/kg 2/5/205 09:4 PM 3-Nitroaniline 49 700 µg/kg 2/5/205 09:4 PM 4,6-Dinitro-2-methylphenol 52 700 µg/kg 2/5/205 09:4 PM 4-Bromophenyl-phenylether 45 330 µg/kg 2/5/205 09:4 PM 4-Chloro-3-methylphenol 4 660 µg/kg 2/5/205 09:4 PM 4-Chloroaniline 44 660 µg/kg 2/5/205 09:4 PM 4-Chlorophenyl-phenylether 45 330 µg/kg 2/5/205 09:4 PM 4-Methylphenol 36 330 µg/kg 2/5/205 09:4 PM 4-Nitroaniline 46 700 µg/kg 2/5/205 09:4 PM 4-Nitrophenol 35 700 µg/kg 2/5/205 09:4 PM Acenaphthene 4 330 µg/kg 2/5/205 09:4 PM Acenaphthylene 37 330 µg/kg 2/5/205 09:4 PM Anthracene 64 330 µg/kg 2/5/205 09:4 PM Benzidine (M) 450 700 µg/kg 2/5/205 09:4 PM Benzo(a)anthracene 75 330 µg/kg 2/5/205 09:4 PM Benzo(a)pyrene 64 200 µg/kg 2/5/205 09:4 PM Benzo(b)fluoranthene 4 330 µg/kg 2/5/205 09:4 PM Benzo(g,h,i)perylene 48 330 µg/kg 2/5/205 09:4 PM Benzo(k)fluoranthene 57 330 µg/kg 2/5/205 09:4 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 40 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-020 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS4-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM Benzoic acid 20 700 µg/kg 2/5/205 09:4 PM Benzyl alcohol 68 660 µg/kg 2/5/205 09:4 PM Bis(2-chloroethoxy)methane 64 330 µg/kg 2/5/205 09:4 PM Bis(2-chloroethyl)ether 62 330 µg/kg 2/5/205 09:4 PM Bis(2-chloroisopropyl)ether 57 330 µg/kg 2/5/205 09:4 PM Bis(2-ethylhexyl)phthalate 80 330 µg/kg 2/5/205 09:4 PM Butylbenzylphthalate 68 330 µg/kg 2/5/205 09:4 PM Chrysene 80 330 µg/kg 2/5/205 09:4 PM Di-n-butylphthalate 4 330 µg/kg 2/5/205 09:4 PM Di-n-octylphthalate 5 330 µg/kg 2/5/205 09:4 PM Dibenz(a,h)anthracene 93 200 µg/kg 2/5/205 09:4 PM Dibenzofuran 40 330 µg/kg 2/5/205 09:4 PM Diethylphthalate 44 330 µg/kg 2/5/205 09:4 PM Dimethylphthalate 43 330 µg/kg 2/5/205 09:4 PM Fluoranthene 62 330 µg/kg 2/5/205 09:4 PM Fluorene 45 330 µg/kg 2/5/205 09:4 PM Hexachlorobenzene 47 330 µg/kg 2/5/205 09:4 PM Hexachlorobutadiene 6 660 µg/kg 2/5/205 09:4 PM Hexachlorocyclopentadiene 38 660 µg/kg 2/5/205 09:4 PM Hexachloroethane 42 330 µg/kg 2/5/205 09:4 PM Indeno(,2,3-cd)pyrene 39 330 µg/kg 2/5/205 09:4 PM Isophorone 59 330 µg/kg 2/5/205 09:4 PM N-Nitrosodi-n-propylamine 46 330 µg/kg 2/5/205 09:4 PM N-Nitrosodiphenylamine 48 330 µg/kg 2/5/205 09:4 PM Naphthalene 49 330 µg/kg 2/5/205 09:4 PM Nitrobenzene 57 330 µg/kg 2/5/205 09:4 PM Pentachlorophenol 34 700 µg/kg 2/5/205 09:4 PM Phenanthrene 84 330 µg/kg 2/5/205 09:4 PM Phenol 38 330 µg/kg 2/5/205 09:4 PM Pyrene 47 330 µg/kg 2/5/205 09:4 PM Surr:,2-Dichlorobenzene-d4 59. 0 2-20 %REC 2/5/205 09:4 PM Surr: 2,4,6-Tribromophenol 84.7 0 25-29 %REC 2/5/205 09:4 PM Surr: 2-Chlorophenol-d4 69. 0 24-20 %REC 2/5/205 09:4 PM Surr: 2-Fluorobiphenyl 64.4 0 33-20 %REC 2/5/205 09:4 PM Surr: 2-Fluorophenol 66.8 0 2-20 %REC 2/5/205 09:4 PM Surr: 4-Terphenyl-d4 9.9 0 37-35 %REC 2/5/205 09:4 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 4 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-025 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS5-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM,2,4-Trichlorobenzene 42 330 µg/kg 2/5/205 :26 PM,2-Dichlorobenzene 4 330 µg/kg 2/5/205 :26 PM,3-Dichlorobenzene 49 330 µg/kg 2/5/205 :26 PM,4-Dichlorobenzene 42 330 µg/kg 2/5/205 :26 PM 2,4,5-Trichlorophenol 4 330 µg/kg 2/5/205 :26 PM 2,4,6-Trichlorophenol 39 330 µg/kg 2/5/205 :26 PM 2,4-Dichlorophenol 40 600 µg/kg 2/5/205 :26 PM 2,4-Dimethylphenol 90 330 µg/kg 2/5/205 :26 PM 2,4-Dinitrophenol 27 600 µg/kg 2/5/205 :26 PM 2,4-Dinitrotoluene 44 330 µg/kg 2/5/205 :26 PM 2,6-Dinitrotoluene 43 330 µg/kg 2/5/205 :26 PM 2-Chloronaphthalene 45 330 µg/kg 2/5/205 :26 PM 2-Chlorophenol 43 330 µg/kg 2/5/205 :26 PM 2-Methylnaphthalene 70 330 µg/kg 2/5/205 :26 PM 2-Methylphenol 48 330 µg/kg 2/5/205 :26 PM 2-Nitroaniline 53 600 µg/kg 2/5/205 :26 PM 2-Nitrophenol 45 330 µg/kg 2/5/205 :26 PM 3,3 -Dichlorobenzidine 24 660 µg/kg 2/5/205 :26 PM 3-Nitroaniline 48 600 µg/kg 2/5/205 :26 PM 4,6-Dinitro-2-methylphenol 52 600 µg/kg 2/5/205 :26 PM 4-Bromophenyl-phenylether 45 330 µg/kg 2/5/205 :26 PM 4-Chloro-3-methylphenol 4 660 µg/kg 2/5/205 :26 PM 4-Chloroaniline 44 660 µg/kg 2/5/205 :26 PM 4-Chlorophenyl-phenylether 45 330 µg/kg 2/5/205 :26 PM 4-Methylphenol 36 330 µg/kg 2/5/205 :26 PM 4-Nitroaniline 46 600 µg/kg 2/5/205 :26 PM 4-Nitrophenol 35 600 µg/kg 2/5/205 :26 PM Acenaphthene 4 330 µg/kg 2/5/205 :26 PM Acenaphthylene 37 330 µg/kg 2/5/205 :26 PM Anthracene 64 330 µg/kg 2/5/205 :26 PM Benzidine (M) 450 600 µg/kg 2/5/205 :26 PM Benzo(a)anthracene 75 330 µg/kg 2/5/205 :26 PM Benzo(a)pyrene 64 200 µg/kg 2/5/205 :26 PM Benzo(b)fluoranthene 40 330 µg/kg 2/5/205 :26 PM Benzo(g,h,i)perylene 48 330 µg/kg 2/5/205 :26 PM Benzo(k)fluoranthene 57 330 µg/kg 2/5/205 :26 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 43 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

CLIENT: Leymaster Environmental Consulting, LLC Lab Order: N0803 Project: Upper Ladera Linda Park Lab ID: N0803-025 ANALYTICAL RESULTS Print Date: 8-Dec-5 Client Sample ID: SS5-A,B,C composite Collection Date: 2/5/205 Matrix: SOIL Analyses Result MDL PQL Qual Units DF Date Analyzed SEMIVOLATILE ORGANIC COMPOUS BY GC/MS EPA 3550B EPA 8270C RunID: MS3_525B QC Batch: 5548 PrepDate: 2/5/205 Analyst: MDM Benzoic acid 20 600 µg/kg 2/5/205 :26 PM Benzyl alcohol 68 660 µg/kg 2/5/205 :26 PM Bis(2-chloroethoxy)methane 64 330 µg/kg 2/5/205 :26 PM Bis(2-chloroethyl)ether 62 330 µg/kg 2/5/205 :26 PM Bis(2-chloroisopropyl)ether 57 330 µg/kg 2/5/205 :26 PM Bis(2-ethylhexyl)phthalate 80 330 µg/kg 2/5/205 :26 PM Butylbenzylphthalate 67 330 µg/kg 2/5/205 :26 PM Chrysene 80 330 µg/kg 2/5/205 :26 PM Di-n-butylphthalate 4 330 µg/kg 2/5/205 :26 PM Di-n-octylphthalate 5 330 µg/kg 2/5/205 :26 PM Dibenz(a,h)anthracene 93 200 µg/kg 2/5/205 :26 PM Dibenzofuran 40 330 µg/kg 2/5/205 :26 PM Diethylphthalate 44 330 µg/kg 2/5/205 :26 PM Dimethylphthalate 43 330 µg/kg 2/5/205 :26 PM Fluoranthene 62 330 µg/kg 2/5/205 :26 PM Fluorene 45 330 µg/kg 2/5/205 :26 PM Hexachlorobenzene 47 330 µg/kg 2/5/205 :26 PM Hexachlorobutadiene 6 660 µg/kg 2/5/205 :26 PM Hexachlorocyclopentadiene 38 660 µg/kg 2/5/205 :26 PM Hexachloroethane 42 330 µg/kg 2/5/205 :26 PM Indeno(,2,3-cd)pyrene 39 330 µg/kg 2/5/205 :26 PM Isophorone 59 330 µg/kg 2/5/205 :26 PM N-Nitrosodi-n-propylamine 46 330 µg/kg 2/5/205 :26 PM N-Nitrosodiphenylamine 48 330 µg/kg 2/5/205 :26 PM Naphthalene 48 330 µg/kg 2/5/205 :26 PM Nitrobenzene 57 330 µg/kg 2/5/205 :26 PM Pentachlorophenol 34 600 µg/kg 2/5/205 :26 PM Phenanthrene 83 330 µg/kg 2/5/205 :26 PM Phenol 38 330 µg/kg 2/5/205 :26 PM Pyrene 47 330 µg/kg 2/5/205 :26 PM Surr:,2-Dichlorobenzene-d4 64.2 0 2-20 %REC 2/5/205 :26 PM Surr: 2,4,6-Tribromophenol 89.5 0 25-29 %REC 2/5/205 :26 PM Surr: 2-Chlorophenol-d4 75.2 0 24-20 %REC 2/5/205 :26 PM Surr: 2-Fluorobiphenyl 72.9 0 33-20 %REC 2/5/205 :26 PM Surr: 2-Fluorophenol 8.0 0 2-20 %REC 2/5/205 :26 PM Surr: 4-Terphenyl-d4 85.6 0 37-35 %REC 2/5/205 :26 PM Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits Not Detected at the Reporting Limit S Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified DO Surrogate Diluted Out 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 44 of 77 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269

Date: 8-Dec-5 CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 600_S Sample ID: MB-55425 SampType: MBLK TestCode: 600_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04703 PBS Batch ID: 55425 TestNo: EPA 600B EPA 3050B Analysis Date: 2/6/205 SeqNo: 26894 Antimony 0.27 2.0 Barium.0 Beryllium.0 Cadmium.0 Chromium.0 Cobalt.0 Copper 2.0 Lead 0.042.0 Molybdenum 0.30.0 Nickel.0 Selenium.0 Silver 0.033.0 Vanadium.0 Zinc.0 Sample ID: LCS-55425 SampType: LCS TestCode: 600_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04703 LCSS Batch ID: 55425 TestNo: EPA 600B EPA 3050B Analysis Date: 2/6/205 SeqNo: 26895 Antimony 25.467 2.0 25.00 0 02 80 20 Barium 25.935.0 25.00 0 04 80 20 Beryllium 25.659.0 25.00 0 03 80 20 Cadmium 25.738.0 25.00 0 03 80 20 Chromium 25.796.0 25.00 0 03 80 20 Cobalt 26.77.0 25.00 0 07 80 20 Copper 25.765 2.0 25.00 0 03 80 20 Lead 25.532.0 25.00 0 02 80 20 Molybdenum 25.294.0 25.00 0 0 80 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 46 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 600_S Sample ID: LCS-55425 SampType: LCS TestCode: 600_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04703 LCSS Batch ID: 55425 TestNo: EPA 600B EPA 3050B Analysis Date: 2/6/205 SeqNo: 26895 Nickel 25.904.0 25.00 0 04 80 20 Selenium 25.363.0 25.00 0 0 80 20 Silver 26.040.0 25.00 0 04 80 20 Vanadium 25.758.0 25.00 0 03 80 20 Zinc 26.655.0 25.00 0 07 80 20 Sample ID: N0806-02A-MS SampType: MS TestCode: 600_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04703 ZZZZZZ Batch ID: 55425 TestNo: EPA 600B EPA 3050B Analysis Date: 2/6/205 SeqNo: 26899 Antimony 3.063 2.0 25.00 0 2.3 75 25 S Barium 25.396.0 25.00 96.2 7 75 25 Beryllium 9.524.0 25.00 0.395 76.5 75 25 Cadmium 7.77.0 25.00 0 70.9 75 25 S Chromium 40.02.0 25.00 5.39 98.9 75 25 Cobalt 26.058.0 25.00 7.628 73.7 75 25 S Copper 36.688 2.0 25.00 8.22 73.9 75 25 S Lead 24.83.0 25.00 7.568 66.5 75 25 S Molybdenum 4.26.0 25.00 0.06073 56.6 75 25 S Nickel 37.89.0 25.00 7.08 83.2 75 25 Selenium 7.499.0 25.00.469 64. 75 25 S Silver 20.866.0 25.00 0 83.5 75 25 Vanadium 6.70.0 25.00 3.84 7 75 25 Zinc 58.446.0 25.00 39.95 74.0 75 25 S Sample ID: N0806-02A-MSD SampType: MSD TestCode: 600_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04703 ZZZZZZ Batch ID: 55425 TestNo: EPA 600B EPA 3050B Analysis Date: 2/6/205 SeqNo: 268920 Antimony 3.75 2.0 25.00 0 2.7 75 25 3.063 3.60 20 S Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 47 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 600_S Sample ID: N0806-02A-MSD SampType: MSD TestCode: 600_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04703 ZZZZZZ Batch ID: 55425 TestNo: EPA 600B EPA 3050B Analysis Date: 2/6/205 SeqNo: 268920 Barium 25.335.0 25.00 96.2 7 75 25 25.4 0.049 20 Beryllium 9.497.0 25.00 0.395 76.4 75 25 9.52 0.36 20 Cadmium 7.722.0 25.00 0 70.9 75 25 7.72 0.035 20 S Chromium 40.053.0 25.00 5.39 98.7 75 25 40.0 0.23 20 Cobalt 26.083.0 25.00 7.628 73.8 75 25 26.06 0.0946 20 S Copper 36.648 2.0 25.00 8.22 73.7 75 25 36.69 0.09 20 S Lead 24.062.0 25.00 7.568 66.0 75 25 24.8 0.503 20 S Molybdenum 4.207.0 25.00 0.06073 56.6 75 25 4.22 0.0607 20 S Nickel 37.850.0 25.00 7.08 83. 75 25 37.89 0.08 20 Selenium 7.434.0 25.00.469 63.9 75 25 7.50 0.373 20 S Silver 20.843.0 25.00 0 83.4 75 25 20.87 0.06 20 Vanadium 6.24.0 25.00 3.84 7 75 25 6.7 0.0743 20 Zinc 58.309.0 25.00 39.95 73.5 75 25 58.45 0.233 20 S Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 48 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 6020_S_PPM Sample ID: MB-55453 SampType: MBLK TestCode: 6020_S_PPM Units: mg/kg Prep Date: 2/6/205 RunNo: 04709 PBS Batch ID: 55453 TestNo: EPA 6020 EPA 3050B Analysis Date: 2/6/205 SeqNo: 269827 Arsenic 0.062 0.50 Thallium 0.25 Sample ID: LCS-55453 SampType: LCS TestCode: 6020_S_PPM Units: mg/kg Prep Date: 2/6/205 RunNo: 04709 LCSS Batch ID: 55453 TestNo: EPA 6020 EPA 3050B Analysis Date: 2/6/205 SeqNo: 269828 Arsenic 5.05 0.50 5.000 0 0 85 5 Thallium 4.384 0.25 5.000 0 87.7 85 5 Sample ID: N0803-005A-MS SampType: MS TestCode: 6020_S_PPM Units: mg/kg Prep Date: 2/6/205 RunNo: 04709 ZZZZZZ Batch ID: 55453 TestNo: EPA 6020 EPA 3050B Analysis Date: 2/6/205 SeqNo: 269838 Arsenic 8.89 0.50 5.000 2.777 08 75 25 Thallium 4.972 0.25 5.000 0.57 97. 75 25 Sample ID: N0803-005A-MSD SampType: MSD TestCode: 6020_S_PPM Units: mg/kg Prep Date: 2/6/205 RunNo: 04709 ZZZZZZ Batch ID: 55453 TestNo: EPA 6020 EPA 3050B Analysis Date: 2/6/205 SeqNo: 269839 Arsenic 8.25 0.50 5.000 2.777 09 75 25 8.89 0.757 20 Thallium 5.032 0.25 5.000 0.57 98.3 75 25 4.972.20 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 49 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 799_S Sample ID: MB-55429 SampType: MBLK TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 PBS Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 26850 Hexavalent Chromium 0.20 Sample ID: LCS-55429 SampType: LCS TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 LCSS Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 2685 Hexavalent Chromium 3.824 0.20 4.000 0 95.6 80 20 Sample ID: N07908-008CREP SampType: DUP TestCode: 799_S Units: mg/kg-dry Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 26853 Hexavalent Chromium 0.5 0.2 0.442 0 20 Sample ID: N07908-008C-DUP SampType: DUP TestCode: 799_S Units: mg/kg-dry Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 26854 Hexavalent Chromium 0.2 0.442 0 20 Sample ID: N07908-008C-MS SampType: MS TestCode: 799_S Units: mg/kg-dry Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 26855 Hexavalent Chromium 4.03 0.2 4.2 0.442 94. 75 25 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 50 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 799_S Sample ID: N07908-008C-MSD SampType: MSD TestCode: 799_S Units: mg/kg-dry Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 26856 Hexavalent Chromium 3.992 0.2 4.23 0.442 93.3 75 25 4.03 0.52 20 Sample ID: N0803-005AREP SampType: DUP TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 268523 Hexavalent Chromium 0.53 0.20 0.593 0 20 Sample ID: N0803-00AREP SampType: DUP TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 268525 Hexavalent Chromium 0.055 0.20 0.05759 0 20 Sample ID: N0803-020AREP SampType: DUP TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 268527 Hexavalent Chromium 0.67 0.20 0.705 0 20 Sample ID: N0803-025AREP SampType: DUP TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 268529 Hexavalent Chromium 0.77 0.20 0.7256.8 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 5 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 799_S Sample ID: N0803-05AREP SampType: DUP TestCode: 799_S Units: mg/kg Prep Date: 2/5/205 RunNo: 04686 ZZZZZZ Batch ID: 55429 TestNo: EPA 799 EPA 3060A Analysis Date: 2/6/205 SeqNo: 268533 Hexavalent Chromium 0.43 0.20 0.397 0 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 52 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 747_S Sample ID: MB-55439 SampType: MBLK TestCode: 747_S Units: mg/kg Prep Date: 2/6/205 RunNo: 0478 PBS Batch ID: 55439 TestNo: EPA 747A Analysis Date: 2/8/205 SeqNo: 270822 Mercury 0.04 0.0 Sample ID: LCS-55439 SampType: LCS TestCode: 747_S Units: mg/kg Prep Date: 2/6/205 RunNo: 0478 LCSS Batch ID: 55439 TestNo: EPA 747A Analysis Date: 2/8/205 SeqNo: 270823 Mercury 0.453 0.0 0.467 0 09 80 20 Sample ID: N07908-008C-MS SampType: MS TestCode: 747_S Units: mg/kg Prep Date: 2/6/205 RunNo: 0478 ZZZZZZ Batch ID: 55439 TestNo: EPA 747A Analysis Date: 2/8/205 SeqNo: 270824 Mercury 0.490 0.099 0.42 0.024 6 75 25 Sample ID: N07908-008C-MSD SampType: MSD TestCode: 747_S Units: mg/kg Prep Date: 2/6/205 RunNo: 0478 ZZZZZZ Batch ID: 55439 TestNo: EPA 747A Analysis Date: 2/8/205 SeqNo: 270825 Mercury 0.495 0.099 0.439 0.024 7 75 25 0.4896.04 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 53 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 805_S_DM H Sample ID: LCS-55428 SampType: LCS TestCode: 805_S_DM H Units: mg/kg Prep Date: 2/5/205 RunNo: 04679 LCSS Batch ID: 55428 TestNo: EPA 805B EPA 3550B Analysis Date: 2/6/205 SeqNo: 268274 DRO 903.293 0 000 0 90.3 67 9 Surr: p-terphenyl 77.035 80.00 96.3 38 52 Sample ID: MB-55428 SampType: MBLK TestCode: 805_S_DM H Units: mg/kg Prep Date: 2/5/205 RunNo: 04679 PBS Batch ID: 55428 TestNo: EPA 805B EPA 3550B Analysis Date: 2/7/205 SeqNo: 268275 DRO 9.863 0 ORO 9.346 0 Surr: p-terphenyl 72.052 80.00 90. 38 52 Sample ID: N0803-005A-MS SampType: MS TestCode: 805_S_DM H Units: mg/kg Prep Date: 2/5/205 RunNo: 04679 ZZZZZZ Batch ID: 55428 TestNo: EPA 805B EPA 3550B Analysis Date: 2/7/205 SeqNo: 26828 DRO 905.786 0 995.0 0.60 90.0 46 43 Surr: p-terphenyl 77.540 79.60 97.4 38 52 Sample ID: N0803-005A-MSD SampType: MSD TestCode: 805_S_DM H Units: mg/kg Prep Date: 2/5/205 RunNo: 04679 ZZZZZZ Batch ID: 55428 TestNo: EPA 805B EPA 3550B Analysis Date: 2/7/205 SeqNo: 268282 DRO 909.02 0 995.0 0.60 90.3 46 43 905.8 0.356 20 Surr: p-terphenyl 76.677 79.60 96.3 38 52 0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 54 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 805GAS_5035U Sample ID: E526LCS SampType: LCS TestCode: 805GAS_50 Units: mg/kg Prep Date: RunNo: 04668 LCSS Batch ID: E5VS44 TestNo: EPA 805B Analysis Date: 2/6/205 SeqNo: 2678 GRO 4.383.0 5.000 0 87.7 70 37 Surr: Chlorobenzene - d5 96.64 00.0 96.6 46 54 Sample ID: E526MB SampType: MBLK TestCode: 805GAS_50 Units: mg/kg Prep Date: RunNo: 04668 PBS Batch ID: E5VS44 TestNo: EPA 805B Analysis Date: 2/6/205 SeqNo: 26782 GRO.0 Surr: Chlorobenzene - d5 96.088 00.0 96. 46 54 Sample ID: N0806-02BMS SampType: MS TestCode: 805GAS_50 Units: mg/kg Prep Date: RunNo: 04668 ZZZZZZ Batch ID: E5VS44 TestNo: EPA 805B Analysis Date: 2/6/205 SeqNo: 26787 GRO 4.522.0 5.000 0 90.4 46 55 Surr: Chlorobenzene - d5 05.922 00.0 06 46 54 Sample ID: N0806-02BMSD SampType: MSD TestCode: 805GAS_50 Units: mg/kg Prep Date: RunNo: 04668 ZZZZZZ Batch ID: E5VS44 TestNo: EPA 805B Analysis Date: 2/6/205 SeqNo: 26788 GRO 4.295.0 5.000 0 85.9 46 55 4.522 5.5 20 Surr: Chlorobenzene - d5 02.64 00.0 02 46 54 0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 55 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 808SOIL Sample ID: LCS-55435_OCP SampType: LCS TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 LCSS Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 268830 4,4 -DDD 7.625 2.0 6.67 0 06 52 39 4,4 -DDE 7.489 2.0 6.67 0 05 5 32 4,4 -DDT 7.265 2.0 6.67 0 04 57 54 Aldrin 6.8.0 6.67 0 97. 35 25 alpha-bhc 6.56.0 6.67 0 99.3 34 32 alpha-chlordane 6.304.0 6.67 0 97.8 5 29 beta-bhc 4.997.0 6.67 0 90.0 48 20 delta-bhc 8.077.0 6.67 0 08 43 36 Dieldrin 7.955 2.0 6.67 0 08 52 35 Endosulfan I 6.224.0 6.67 0 97.3 50 20 Endosulfan II 6.538 2.0 6.67 0 99.2 58 35 Endosulfan sulfate 5.965 2.0 6.67 0 95.8 58 36 Endrin 9.596 2.0 6.67 0 8 29 57 Endrin aldehyde 2.984 2.0 6.67 0 77.9 56 23 Endrin ketone 4.79 2.0 6.67 0 88.3 47 50 gamma-bhc 6.453.0 6.67 0 98.7 40 25 gamma-chlordane 6.588.0 6.67 0 99.5 53 26 Heptachlor 20.930.0 6.67 0 26 37 29 Heptachlor epoxide 6.362.0 6.67 0 98. 50 23 Methoxychlor 8.598 8.5 6.67 0 2 55 65 Surr: Tetrachloro-m-xylene 3.439 6.67 80.6 26 20 Surr: Decachlorobiphenyl 2.985 6.67 77.9 3 3 Sample ID: MB-55435 SampType: MBLK TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 PBS Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 26883 4,4 -DDD 2.0 4,4 -DDE 2.0 4,4 -DDT 2.0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 56 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 808SOIL Sample ID: MB-55435 SampType: MBLK TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 PBS Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 26883 Aldrin.0 alpha-bhc.0 alpha-chlordane.0 beta-bhc.0 Chlordane 8.5 delta-bhc.0 Dieldrin 2.0 Endosulfan I.0 Endosulfan II 2.0 Endosulfan sulfate 2.0 Endrin 2.0 Endrin aldehyde 2.0 Endrin ketone 2.0 gamma-bhc.0 gamma-chlordane.0 Heptachlor.0 Heptachlor epoxide.0 Methoxychlor 8.5 Toxaphene 85 Surr: Tetrachloro-m-xylene.752 6.67 70.5 26 20 Surr: Decachlorobiphenyl.580 6.67 69.5 3 3 Sample ID: N0803-005A-MS SampType: MS TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 ZZZZZZ Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 268837 4,4 -DDD 8.660 2.0 6.68 0 2 9 32 4,4 -DDE 20.49 2.0 6.68 0.8 6.4 28 07 4,4 -DDT 7.955 2.0 6.68 4.03-36.4 2 29 S Aldrin 2.273.0 6.68 0 73.6 28 05 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 57 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 808SOIL Sample ID: N0803-005A-MS SampType: MS TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 ZZZZZZ Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 268837 alpha-bhc 4.039.0 6.68 0 84.2 35 02 alpha-chlordane 0.653.0 6.68 5.833 28.9 23 25 beta-bhc.84.0 6.68 0 70.8 6 24 delta-bhc 3.782.0 6.68 0 82.6 20 27 Dieldrin 3.47 2.0 6.68.073 72.4 24 06 Endosulfan I.80.0 6.68 0 70.8 20 26 Endosulfan II 0.852 2.0 6.68 0 65. 20 2 Endosulfan sulfate 0.0 2.0 6.68 0 60.6 24 33 Endrin 3.089 2.0 6.68 0 78.5 2 7 Endrin aldehyde 0.24 2.0 6.68 0 6.2 25 8 Endrin ketone 8.693 2.0 6.68 0 52. 32 05 gamma-bhc 2.879.0 6.68 0 77.2 24 5 gamma-chlordane 7.80.0 6.68 5.824 68. 28 09 Heptachlor 5.284.0 6.68 0.247 90.2 27 8 Heptachlor epoxide 3.872.0 6.68 0 83.2 3 37 Methoxychlor 5.44 8.5 6.68 0 32.6 55 52 S Surr: Tetrachloro-m-xylene 9.766 6.68 58.5 26 20 Surr: Decachlorobiphenyl 8.049 6.68 48.3 3 3 Sample ID: N0803-005A-MSD SampType: MSD TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 ZZZZZZ Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 268838 4,4 -DDD 8.25 2.0 6.68 0 09 9 32 8.66 2.42 20 4,4 -DDE 20.23 2.0 6.68 0.8 60.2 28 07 20.42.02 20 4,4 -DDT 6.679 2.0 6.68 4.03-44. 2 29 7.955 7.4 20 S Aldrin.57.0 6.68 0 66.9 28 05 2.27 9.52 20 alpha-bhc 3.368.0 6.68 0 80.2 35 02 4.04 4.90 20 alpha-chlordane 9.898.0 6.68 5.833 84.3 23 25 0.65 60.5 20 R beta-bhc 0.62.0 6.68 0 63.6 6 24.8 0.7 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 58 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 808SOIL Sample ID: N0803-005A-MSD SampType: MSD TestCode: 808SOIL Units: µg/kg Prep Date: 2/6/205 RunNo: 0470 ZZZZZZ Batch ID: 55435 TestNo: EPA 808A EPA 3550B Analysis Date: 2/6/205 SeqNo: 268838 delta-bhc 2.202.0 6.68 0 73.2 20 27 3.78 2.2 20 Dieldrin 2.335 2.0 6.68.073 67.5 24 06 3.5 6.37 20 Endosulfan I 2.876.0 6.68 0 77.2 20 26.8 8.63 20 Endosulfan II 0.356 2.0 6.68 0 62. 20 2 0.85 4.68 20 Endosulfan sulfate 0.06 2.0 6.68 0 60.3 24 33 0. 0.488 20 Endrin 2.20 2.0 6.68 0 72.7 2 7 3.09 7.69 20 Endrin aldehyde 0.56 2.0 6.68 0 60.9 25 8 0.2 0.574 20 Endrin ketone 9.022 2.0 6.68 0 54. 32 05 8.693 3.7 20 gamma-bhc.58.0 6.68 0 69. 24 5 2.88.2 20 gamma-chlordane 5.537.0 6.68 5.824 58.2 28 09 7.8 0.0 20 Heptachlor 3.920.0 6.68 0.247 82.0 27 8 5.28 9.34 20 Heptachlor epoxide 3.294.0 6.68 0 79.7 3 37 3.87 4.25 20 Methoxychlor 6.600 8.5 6.68 0 39.6 55 52 5.44 0 20 S Surr: Tetrachloro-m-xylene 0.62 6.68 63.7 26 20 0 Surr: Decachlorobiphenyl 9.683 6.68 58. 3 3 0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 59 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8082_S Sample ID: LCS-55435_PCB SampType: LCS TestCode: 8082_S Units: µg/kg Prep Date: 2/6/205 RunNo: 04669 LCSS Batch ID: 55435 TestNo: EPA 8082 EPA 3550B Analysis Date: 2/6/205 SeqNo: 26780 Aroclor 06 50.026 6 66.7 0 90.0 58 28 Aroclor 260 69.397 6 66.7 0 02 60 36 Surr: Decachlorobiphenyl 7.96 6.67 07 34 47 Surr: Tetrachloro-m-xylene 4.348 6.67 86. 30 8 Sample ID: MB-55435 SampType: MBLK TestCode: 8082_S Units: µg/kg Prep Date: 2/6/205 RunNo: 04669 PBS Batch ID: 55435 TestNo: EPA 8082 EPA 3550B Analysis Date: 2/6/205 SeqNo: 267802 Aroclor 06 6 Aroclor 22 33 Aroclor 232 6 Aroclor 242 6 Aroclor 248 6 Aroclor 254 6 Aroclor 260 6 Surr: Decachlorobiphenyl 6.40 6.67 98.4 34 47 Surr: Tetrachloro-m-xylene 3.074 6.67 78.4 30 8 Sample ID: N0793-002B-MS SampType: MS TestCode: 8082_S Units: µg/kg Prep Date: 2/6/205 RunNo: 04669 ZZZZZZ Batch ID: 55435 TestNo: EPA 8082 EPA 3550B Analysis Date: 2/6/205 SeqNo: 267808 Aroclor 06 6 66.4 0 0 5 43 S Aroclor 260 3.697 6 66.4 65.28-20.2 8 36 S Surr: Decachlorobiphenyl 0.329 6.65 62.0 34 47 Surr: Tetrachloro-m-xylene 0.662 6.65 64.0 30 8 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 60 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8082_S Sample ID: N0793-002B-MSD SampType: MSD TestCode: 8082_S Units: µg/kg Prep Date: 2/6/205 RunNo: 04669 ZZZZZZ Batch ID: 55435 TestNo: EPA 8082 EPA 3550B Analysis Date: 2/6/205 SeqNo: 267809 Aroclor 06 9.854 6 66.3 0.9 5 43 0 200 20 SR Aroclor 260 73.66 6 66.3 65.28 5.04 8 36 3.70 79.7 20 SR Surr: Decachlorobiphenyl 2.236 6.64 73.5 34 47 0 Surr: Tetrachloro-m-xylene 2.250 6.64 73.6 30 8 0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 6 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: R526LCS SampType: LCS TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 LCSS Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268293,,,2-Tetrachloroethane 40.800 5.0 40.00 0 02 80 22,,-Trichloroethane 38.230 5.0 40.00 0 95.6 78 24,,2,2-Tetrachloroethane 39.440 5.0 40.00 0 98.6 75 24,,2-Trichloroethane 39.370 5.0 40.00 0 98.4 80 20,-Dichloroethane 38.630 5.0 40.00 0 96.6 77 24,-Dichloroethene 37.620 5.0 40.00 0 94. 7 33,-Dichloropropene 39.90 5.0 40.00 0 99.8 80 20,2,3-Trichlorobenzene 42.080 5.0 40.00 0 05 80 26,2,3-Trichloropropane 40.570 5.0 40.00 0 0 78 20,2,4-Trichlorobenzene 40.760 5.0 40.00 0 02 77 29,2,4-Trimethylbenzene 43.890 5.0 40.00 0 0 80 20,2-Dibromo-3-chloropropane 40.690 0 40.00 0 02 65 34,2-Dibromoethane 39.740 5.0 40.00 0 99.4 80 20,2-Dichlorobenzene 40.650 5.0 40.00 0 02 80 20,2-Dichloroethane 38.860 5.0 40.00 0 97.2 80 20,2-Dichloropropane 39.540 5.0 40.00 0 98.8 80 20,3,5-Trimethylbenzene 43.860 5.0 40.00 0 0 80 20,3-Dichlorobenzene 40.540 5.0 40.00 0 0 80 20,3-Dichloropropane 4.240 5.0 40.00 0 03 80 20,4-Dichlorobenzene 39.800 5.0 40.00 0 99.5 80 20 2,2-Dichloropropane 37.040 5.0 40.00 0 92.6 73 26 2-Butanone 383.290 50 400.0 0 95.8 40 60 2-Chlorotoluene 42.70 5.0 40.00 0 05 80 20 4-Chlorotoluene 4.820 5.0 40.00 0 05 80 20 4-Isopropyltoluene 42.040 5.0 40.00 0 05 79 22 Benzene 39.760 5.0 40.00 0 99.4 80 20 Bromobenzene 4.380 5.0 40.00 0 03 80 20 Bromodichloromethane 38.700 5.0 40.00 0 96.8 80 20 Bromoform 40.320 5.0 40.00 0 0 68 4 Bromomethane 37.90 5.0 40.00 0 94.8 52 53 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 62 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: R526LCS SampType: LCS TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 LCSS Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268293 Carbon tetrachloride 38.780 5.0 40.00 0 97.0 72 32 Chlorobenzene 40.50 5.0 40.00 0 0 80 20 Chloroethane 40.720 5.0 40.00 0 02 7 35 Chloroform 37.550 5.0 40.00 0 93.9 80 2 Chloromethane 37.560 5.0 40.00 0 93.9 58 34 cis-,2-dichloroethene 38.540 5.0 40.00 0 96.4 80 20 cis-,3-dichloropropene 39.20 5.0 40.00 0 98.0 80 20 Dibromochloromethane 40.800 5.0 40.00 0 02 80 26 Dibromomethane 38.720 5.0 40.00 0 96.8 80 20 Dichlorodifluoromethane 38.440 5.0 40.00 0 96. 67 40 Ethylbenzene 4.580 5.0 40.00 0 04 80 20 Freon-3 38.230 5.0 40.00 0 95.6 72 36 Hexachlorobutadiene 39.60 5.0 40.00 0 97.9 76 24 Isopropylbenzene 42.980 5.0 40.00 0 07 80 20 m,p-xylene 85.650 0 80.00 0 07 80 20 Methylene chloride 37.20 5.0 40.00 0 93.0 6 38 MTBE 38.860 5.0 40.00 0 97.2 73 27 n-butylbenzene 4.860 5.0 40.00 0 05 79 24 n-propylbenzene 43.250 5.0 40.00 0 08 80 20 Naphthalene 37.440 5.0 40.00 0 93.6 67 33 o-xylene 42.500 5.0 40.00 0 06 80 20 sec-butylbenzene 42.870 5.0 40.00 0 07 80 20 Styrene 42.560 5.0 40.00 0 06 80 20 tert-butylbenzene 43.00 5.0 40.00 0 08 80 20 Tetrachloroethene 40.330 5.0 40.00 0 0 77 23 Toluene 40.470 5.0 40.00 0 0 80 20 trans-,2-dichloroethene 37.580 5.0 40.00 0 94.0 78 26 Trichloroethene 39.830 5.0 40.00 0 99.6 80 2 Trichlorofluoromethane 38.040 5.0 40.00 0 95. 75 37 Vinyl chloride 39.490 5.0 40.00 0 98.7 75 25 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 63 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: R526LCS SampType: LCS TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 LCSS Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268293 Surr:,2-Dichloroethane-d4 48.860 50.00 97.7 75 40 Surr: 4-Bromofluorobenzene 53.660 50.00 07 73 28 Surr: Dibromofluoromethane 48.750 50.00 97.5 78 33 Surr: Toluene-d8 5.800 50.00 04 80 20 Sample ID: N0806-03BMS SampType: MS TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 ZZZZZZ Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268294,,,2-Tetrachloroethane 36.860 5.0 40.00 0 92.2 6 25,,-Trichloroethane 40.250 5.0 40.00 0 0 64 23,,2,2-Tetrachloroethane 36.990 5.0 40.00 0 92.5 50 28,,2-Trichloroethane 37.890 5.0 40.00 0 94.7 62 35,-Dichloroethane 38.440 5.0 40.00 0 96. 65 24,-Dichloroethene 39.620 5.0 40.00 0 99.0 62 30,-Dichloropropene 39.700 5.0 40.00 0 99.2 64 9,2,3-Trichlorobenzene 33.90 5.0 40.00 0 83.0 24 45,2,3-Trichloropropane 38.500 5.0 40.00 0 96.2 26 59,2,4-Trichlorobenzene 33.590 5.0 40.00 0 84.0 26 44,2,4-Trimethylbenzene 39.670 5.0 40.00 0 99.2 42 37,2-Dibromo-3-chloropropane 38.340 0 40.00 0 95.9 44 3,2-Dibromoethane 39.050 5.0 40.00 0 97.6 68 29,2-Dichlorobenzene 35.230 5.0 40.00 0 88. 52 29,2-Dichloroethane 37.620 5.0 40.00 0 94. 68 26,2-Dichloropropane 37.280 5.0 40.00 0 93.2 69 20,3,5-Trimethylbenzene 39.80 5.0 40.00 0 99.5 46 30,3-Dichlorobenzene 35.590 5.0 40.00 0 89.0 5 26,3-Dichloropropane 38.390 5.0 40.00 0 96.0 68 2,4-Dichlorobenzene 34.570 5.0 40.00 0 86.4 5 25 2,2-Dichloropropane 40.230 5.0 40.00 0 0 56 28 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 64 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: N0806-03BMS SampType: MS TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 ZZZZZZ Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268294 2-Butanone 538.780 50 400.0 0 35 33 78 2-Chlorotoluene 37.820 5.0 40.00 0 94.6 54 22 4-Chlorotoluene 37.990 5.0 40.00 0 95.0 54 2 4-Isopropyltoluene 38.430 5.0 40.00 0 96. 44 27 Benzene 38.080 5.0 40.00 0 95.2 7 20 Bromobenzene 36.260 5.0 40.00 0 90.7 60 23 Bromodichloromethane 36.880 5.0 40.00 0 92.2 68 25 Bromoform 37.530 5.0 40.00 0 93.8 53 37 Bromomethane 37.40 5.0 40.00 0.6500 9.2 35 60 Carbon tetrachloride 37.950 5.0 40.00 0 94.9 52 3 Chlorobenzene 36.680 5.0 40.00 0 9.7 64 20 Chloroethane 40.60 5.0 40.00 0 00 49 43 Chloroform 37.340 5.0 40.00 0 93.4 65 25 Chloromethane 37.50 5.0 40.00 0 93.8 43 35 cis-,2-dichloroethene 37.80 5.0 40.00 0 94.5 68 25 cis-,3-dichloropropene 37.760 5.0 40.00 0 94.4 65 26 Dibromochloromethane 37.950 5.0 40.00 0 94.9 62 30 Dibromomethane 37.30 5.0 40.00 0 92.8 7 22 Dichlorodifluoromethane 40.730 5.0 40.00 0 02 49 46 Ethylbenzene 38.000 5.0 40.00 0 95.0 59 20 Freon-3 39.970 5.0 40.00 0 99.9 59 32 Hexachlorobutadiene 33.950 5.0 40.00 0 84.9 8 35 Isopropylbenzene 39.360 5.0 40.00 0 98.4 54 22 m,p-xylene 78.830 0 80.00 0 98.5 43 36 Methylene chloride 36.70 5.0 40.00.720 87.5 48 44 MTBE 40.080 5.0 40.00 0 00 60 40 n-butylbenzene 38.660 5.0 40.00 0 96.7 36 32 n-propylbenzene 39.600 5.0 40.00 0 99.0 49 26 Naphthalene 3.480 5.0 40.00 0 78.7 27 40 o-xylene 38.700 5.0 40.00 0 96.8 47 35 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 65 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: N0806-03BMS SampType: MS TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 ZZZZZZ Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268294 sec-butylbenzene 39.560 5.0 40.00 0 98.9 46 25 Styrene 37.450 5.0 40.00 0 93.6 6 24 tert-butylbenzene 39.80 5.0 40.00 0 98.0 50 23 Tetrachloroethene 38.240 5.0 40.00 0 95.6 56 20 Toluene 38.80 5.0 40.00 0 97.0 66 20 trans-,2-dichloroethene 38.0 5.0 40.00 0 95.3 66 26 Trichloroethene 39.40 5.0 40.00 0 97.9 58 39 Trichlorofluoromethane 39.740 5.0 40.00 0 99.4 63 35 Vinyl chloride 4.60 5.0 40.00 0 03 63 26 Surr:,2-Dichloroethane-d4 55.590 50.00 75 40 Surr: 4-Bromofluorobenzene 55.230 50.00 0 73 28 Surr: Dibromofluoromethane 54.670 50.00 09 78 33 Surr: Toluene-d8 53.630 50.00 07 80 20 Sample ID: N0806-03BMSD SampType: MSD TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 ZZZZZZ Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268295,,,2-Tetrachloroethane 35.840 5.0 40.00 0 89.6 6 25 36.86 2.8 20,,-Trichloroethane 38.270 5.0 40.00 0 95.7 64 23 40.25 5.04 20,,2,2-Tetrachloroethane 35.390 5.0 40.00 0 88.5 50 28 36.99 4.42 20,,2-Trichloroethane 36.860 5.0 40.00 0 92.2 62 35 37.89 2.76 20,-Dichloroethane 37.070 5.0 40.00 0 92.7 65 24 38.44 3.63 20,-Dichloroethene 37.630 5.0 40.00 0 94. 62 30 39.62 5.5 20,-Dichloropropene 38.680 5.0 40.00 0 96.7 64 9 39.70 2.60 20,2,3-Trichlorobenzene 29.400 5.0 40.00 0 73.5 24 45 33.9 2. 20,2,3-Trichloropropane 36.90 5.0 40.00 0 92.3 26 59 38.50 4.22 20,2,4-Trichlorobenzene 29.920 5.0 40.00 0 74.8 26 44 33.59.6 20,2,4-Trimethylbenzene 37.730 5.0 40.00 0 94.3 42 37 39.67 5.0 20,2-Dibromo-3-chloropropane 36.430 0 40.00 0 9. 44 3 38.34 5. 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 66 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: N0806-03BMSD SampType: MSD TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 ZZZZZZ Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268295,2-Dibromoethane 36.490 5.0 40.00 0 9.2 68 29 39.05 6.78 20,2-Dichlorobenzene 32.790 5.0 40.00 0 82.0 52 29 35.23 7.7 20,2-Dichloroethane 36.40 5.0 40.00 0 90.4 68 26 37.62 4.0 20,2-Dichloropropane 35.870 5.0 40.00 0 89.7 69 20 37.28 3.86 20,3,5-Trimethylbenzene 38.200 5.0 40.00 0 95.5 46 30 39.8 4.3 20,3-Dichlorobenzene 33.200 5.0 40.00 0 83.0 5 26 35.59 6.95 20,3-Dichloropropane 36.760 5.0 40.00 0 9.9 68 2 38.39 4.34 20,4-Dichlorobenzene 32.460 5.0 40.00 0 8.2 5 25 34.57 6.30 20 2,2-Dichloropropane 38.260 5.0 40.00 0 95.7 56 28 40.23 5.02 20 2-Butanone 485.760 50 400.0 0 2 33 78 538.8 0.4 20 2-Chlorotoluene 36.20 5.0 40.00 0 90.5 54 22 37.82 4.35 20 4-Chlorotoluene 35.740 5.0 40.00 0 89.4 54 2 37.99 6.0 20 4-Isopropyltoluene 36.690 5.0 40.00 0 9.7 44 27 38.43 4.63 20 Benzene 36.530 5.0 40.00 0 9.3 7 20 38.08 4.5 20 Bromobenzene 34.670 5.0 40.00 0 86.7 60 23 36.26 4.48 20 Bromodichloromethane 35.290 5.0 40.00 0 88.2 68 25 36.88 4.4 20 Bromoform 36.220 5.0 40.00 0 90.6 53 37 37.53 3.55 20 Bromomethane 34.690 5.0 40.00 0.6500 85. 35 60 37.4 6.82 20 Carbon tetrachloride 37.270 5.0 40.00 0 93.2 52 3 37.95.8 20 Chlorobenzene 35.240 5.0 40.00 0 88. 64 20 36.68 4.00 20 Chloroethane 39.40 5.0 40.00 0 97.9 49 43 40.6 2.57 20 Chloroform 35.600 5.0 40.00 0 89.0 65 25 37.34 4.77 20 Chloromethane 35.320 5.0 40.00 0 88.3 43 35 37.5 6.0 20 cis-,2-dichloroethene 36.850 5.0 40.00 0 92. 68 25 37.8 2.57 20 cis-,3-dichloropropene 35.890 5.0 40.00 0 89.7 65 26 37.76 5.08 20 Dibromochloromethane 36.840 5.0 40.00 0 92. 62 30 37.95 2.97 20 Dibromomethane 35.590 5.0 40.00 0 89.0 7 22 37.3 4.24 20 Dichlorodifluoromethane 39.200 5.0 40.00 0 98.0 49 46 40.73 3.83 20 Ethylbenzene 36.990 5.0 40.00 0 92.5 59 20 38.00 2.69 20 Freon-3 38.00 5.0 40.00 0 95.0 59 32 39.97 5.03 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 67 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: N0806-03BMSD SampType: MSD TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 ZZZZZZ Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268295 Hexachlorobutadiene 32.70 5.0 40.00 0 80.4 8 35 33.95 5.38 20 Isopropylbenzene 37.920 5.0 40.00 0 94.8 54 22 39.36 3.73 20 m,p-xylene 76.390 0 80.00 0 95.5 43 36 78.83 3.4 20 Methylene chloride 34.770 5.0 40.00.720 82.6 48 44 36.7 5.43 20 MTBE 37.770 5.0 40.00 0 94.4 60 40 40.08 5.93 20 n-butylbenzene 36.640 5.0 40.00 0 9.6 36 32 38.66 5.37 20 n-propylbenzene 37.940 5.0 40.00 0 94.8 49 26 39.60 4.28 20 Naphthalene 28.880 5.0 40.00 0 72.2 27 40 3.48 8.6 20 o-xylene 36.970 5.0 40.00 0 92.4 47 35 38.70 4.57 20 sec-butylbenzene 37.890 5.0 40.00 0 94.7 46 25 39.56 4.3 20 Styrene 36.300 5.0 40.00 0 90.8 6 24 37.45 3.2 20 tert-butylbenzene 37.890 5.0 40.00 0 94.7 50 23 39.8 3.35 20 Tetrachloroethene 37.40 5.0 40.00 0 93.5 56 20 38.24 2.9 20 Toluene 36.950 5.0 40.00 0 92.4 66 20 38.8 4.9 20 trans-,2-dichloroethene 36.390 5.0 40.00 0 9.0 66 26 38. 4.62 20 Trichloroethene 37.920 5.0 40.00 0 94.8 58 39 39.4 3.7 20 Trichlorofluoromethane 38.380 5.0 40.00 0 96.0 63 35 39.74 3.48 20 Vinyl chloride 39.350 5.0 40.00 0 98.4 63 26 4.6 4.50 20 Surr:,2-Dichloroethane-d4 53.970 50.00 08 75 40 0 Surr: 4-Bromofluorobenzene 54.340 50.00 09 73 28 0 Surr: Dibromofluoromethane 53.30 50.00 06 78 33 0 Surr: Toluene-d8 52.930 50.00 06 80 20 0 Sample ID: R526MB3 SampType: MBLK TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 PBS Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268296,,,2-Tetrachloroethane 5.0,,-Trichloroethane 5.0,,2,2-Tetrachloroethane 5.0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 68 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: R526MB3 SampType: MBLK TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 PBS Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268296,,2-Trichloroethane 5.0,-Dichloroethane 5.0,-Dichloroethene 5.0,-Dichloropropene 5.0,2,3-Trichlorobenzene 5.0,2,3-Trichloropropane 5.0,2,4-Trichlorobenzene 5.0,2,4-Trimethylbenzene 5.0,2-Dibromo-3-chloropropane 0,2-Dibromoethane 5.0,2-Dichlorobenzene 5.0,2-Dichloroethane 5.0,2-Dichloropropane 5.0,3,5-Trimethylbenzene 5.0,3-Dichlorobenzene 5.0,3-Dichloropropane 5.0,4-Dichlorobenzene 5.0 2,2-Dichloropropane 5.0 2-Butanone 50 2-Chlorotoluene 5.0 4-Chlorotoluene 5.0 4-Isopropyltoluene 5.0 Benzene 5.0 Bromobenzene 5.0 Bromodichloromethane 5.0 Bromoform 5.0 Bromomethane 0.620 5.0 Carbon tetrachloride 5.0 Chlorobenzene 5.0 Chloroethane 5.0 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 69 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8260ENC5035 Sample ID: R526MB3 SampType: MBLK TestCode: 8260ENC503 Units: µg/kg Prep Date: RunNo: 04680 PBS Batch ID: R5VS048 TestNo: EPA 8260B Analysis Date: 2/6/205 SeqNo: 268296 Chloroform 5.0 Chloromethane 5.0 cis-,2-dichloroethene 5.0 cis-,3-dichloropropene 5.0 Dibromochloromethane 5.0 Dibromomethane 5.0 Dichlorodifluoromethane 5.0 Ethylbenzene 5.0 Freon-3 5.0 Hexachlorobutadiene 5.0 Isopropylbenzene 5.0 m,p-xylene 0 Methylene chloride.740 5.0 MTBE 5.0 n-butylbenzene 5.0 n-propylbenzene 5.0 Naphthalene 5.0 o-xylene 5.0 sec-butylbenzene 5.0 Styrene 5.0 tert-butylbenzene 5.0 Tetrachloroethene 5.0 Toluene 5.0 trans-,2-dichloroethene 5.0 Trichloroethene 5.0 Trichlorofluoromethane 5.0 Vinyl chloride 5.0 Surr:,2-Dichloroethane-d4 60.830 50.00 22 75 40 Surr: 4-Bromofluorobenzene 5.090 50.00 02 73 28 Surr: Dibromofluoromethane 62.90 50.00 24 78 33 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 70 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8270SOIL Sample ID: LCS-5548 SampType: LCS TestCode: 8270SOIL Units: µg/kg Prep Date: 2/5/205 RunNo: 04664 LCSS Batch ID: 5548 TestNo: EPA 8270C EPA 3550B Analysis Date: 2/5/205 SeqNo: 267649,2,4-Trichlorobenzene 2679.000 330 3330 0 80.5 42 20,2-Dichlorobenzene 2588.000 330 3330 0 77.7 39 20,3-Dichlorobenzene 2540.333 330 3330 0 76.3 36 20,4-Dichlorobenzene 2600.333 330 3330 0 78. 39 20 2,4,5-Trichlorophenol 2798.333 330 3330 0 84.0 47 20 2,4,6-Trichlorophenol 2899.000 330 3330 0 87. 50 20 2,4-Dichlorophenol 284.333 600 3330 0 85.3 47 20 2,4-Dimethylphenol 2995.667 330 3330 0 90.0 48 20 2,4-Dinitrophenol 836.333 600 3330 0 55. 5 20 2,4-Dinitrotoluene 2903.667 330 3330 0 87.2 63 20 2,6-Dinitrotoluene 2885.667 330 3330 0 86.7 60 20 2-Chloronaphthalene 2689.667 330 3330 0 80.8 52 20 2-Chlorophenol 2924.333 330 3330 0 87.8 42 20 2-Methylnaphthalene 2742.000 330 3330 0 82.3 47 20 2-Methylphenol 2988.000 330 3330 0 89.7 45 20 2-Nitroaniline 2870.333 600 3330 0 86.2 52 25 2-Nitrophenol 2827.667 330 3330 0 84.9 4 20 3,3 -Dichlorobenzidine 4037.000 660 6660 0 60.6 37 20 3-Nitroaniline 2929.333 600 3330 0 88.0 57 20 4,6-Dinitro-2-methylphenol 2753.333 600 3330 0 82.7 2 20 4-Bromophenyl-phenylether 296.333 330 3330 0 87.6 60 20 4-Chloro-3-methylphenol 2958.333 660 3330 0 88.8 55 20 4-Chloroaniline 862.000 660 3330 0 55.9 32 20 4-Chlorophenyl-phenylether 2860.333 330 3330 0 85.9 58 20 4-Methylphenol 2958.667 330 3330 0 88.8 48 20 4-Nitroaniline 3034.000 600 3330 0 9. 49 20 4-Nitrophenol 309.000 600 3330 0 93.4 39 20 Acenaphthene 2753.333 330 3330 0 82.7 56 20 Acenaphthylene 280.333 330 3330 0 84. 55 20 Anthracene 2640.333 330 3330 0 79.3 6 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 72 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8270SOIL Sample ID: LCS-5548 SampType: LCS TestCode: 8270SOIL Units: µg/kg Prep Date: 2/5/205 RunNo: 04664 LCSS Batch ID: 5548 TestNo: EPA 8270C EPA 3550B Analysis Date: 2/5/205 SeqNo: 267649 Benzidine (M) 2769.000 600 6660 0 4.6 6 29 Benzo(a)anthracene 3024.667 330 3330 0 90.8 62 2 Benzo(a)pyrene 2842.000 200 3330 0 85.3 58 08 Benzo(b)fluoranthene 332.667 330 3330 0 99.7 49 29 Benzo(g,h,i)perylene 2565.333 330 3330 0 77.0 25 35 Benzo(k)fluoranthene 293.000 330 3330 0 88.0 53 20 Benzoic acid 777.000 600 3330 0 53.4 9 20 Benzyl alcohol 2608.333 660 3330 0 78.3 36 20 Bis(2-chloroethoxy)methane 2898.000 330 3330 0 87.0 47 20 Bis(2-chloroethyl)ether 2940.667 330 3330 0 88.3 37 20 Bis(2-chloroisopropyl)ether 269.333 330 3330 0 80.8 34 20 Bis(2-ethylhexyl)phthalate 329.667 330 3330 0 96.7 6 27 Butylbenzylphthalate 3099.000 330 3330 0 93. 6 26 Chrysene 3005.000 330 3330 0 90.2 53 33 Di-n-butylphthalate 3079.000 330 3330 0 92.5 59 20 Di-n-octylphthalate 2960.333 330 3330 0 88.9 50 43 Dibenz(a,h)anthracene 348.667 200 3330 0 94.6 32 46 Dibenzofuran 2798.333 330 3330 0 84.0 57 20 Diethylphthalate 2928.000 330 3330 0 87.9 62 20 Dimethylphthalate 2909.333 330 3330 0 87.4 60 20 Fluoranthene 2923.333 330 3330 0 87.8 60 20 Fluorene 2948.333 330 3330 0 88.5 60 20 Hexachlorobenzene 2920.000 330 3330 0 87.7 62 20 Hexachlorobutadiene 2957.667 660 3330 0 88.8 49 20 Hexachlorocyclopentadiene 2692.000 660 3330 0 80.8 22 26 Hexachloroethane 2562.000 330 3330 0 76.9 44 20 Indeno(,2,3-cd)pyrene 2909.333 330 3330 0 87.4 34 28 Isophorone 33.667 330 3330 0 93.5 47 20 N-Nitrosodi-n-propylamine 2708.333 330 3330 0 8.3 24 20 N-Nitrosodiphenylamine 29.000 330 3330 0 87.4 60 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 73 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8270SOIL Sample ID: LCS-5548 SampType: LCS TestCode: 8270SOIL Units: µg/kg Prep Date: 2/5/205 RunNo: 04664 LCSS Batch ID: 5548 TestNo: EPA 8270C EPA 3550B Analysis Date: 2/5/205 SeqNo: 267649 Naphthalene 2747.333 330 3330 0 82.5 46 20 Nitrobenzene 2685.333 330 3330 0 80.6 4 20 Pentachlorophenol 2648.333 600 3330 0 79.5 28 20 Phenanthrene 3079.333 330 3330 0 92.5 60 20 Phenol 2880.333 330 3330 0 86.5 40 20 Pyrene 2744.667 330 3330 0 82.4 58 20 Surr:,2-Dichlorobenzene-d4 209.000 3330 60.6 2 20 Surr: 2,4,6-Tribromophenol 2377.333 3330 7.4 25 29 Surr: 2-Chlorophenol-d4 2267.333 3330 68. 24 20 Surr: 2-Fluorobiphenyl 2094.000 3330 62.9 33 20 Surr: 2-Fluorophenol 258.667 3330 75.6 2 20 Surr: 4-Terphenyl-d4 2400.333 3330 72. 37 35 Surr: Nitrobenzene-d5 243.333 3330 64.4 26 20 Surr: Phenol-d5 2268.000 3330 68. 25 20 Sample ID: MB-5548 SampType: MBLK TestCode: 8270SOIL Units: µg/kg Prep Date: 2/5/205 RunNo: 04664 PBS Batch ID: 5548 TestNo: EPA 8270C EPA 3550B Analysis Date: 2/5/205 SeqNo: 267650,2,4-Trichlorobenzene 330,2-Dichlorobenzene 330,3-Dichlorobenzene 330,4-Dichlorobenzene 330 2,4,5-Trichlorophenol 330 2,4,6-Trichlorophenol 330 2,4-Dichlorophenol 600 2,4-Dimethylphenol 330 2,4-Dinitrophenol 600 2,4-Dinitrotoluene 330 2,6-Dinitrotoluene 330 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 74 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8270SOIL Sample ID: MB-5548 SampType: MBLK TestCode: 8270SOIL Units: µg/kg Prep Date: 2/5/205 RunNo: 04664 PBS Batch ID: 5548 TestNo: EPA 8270C EPA 3550B Analysis Date: 2/5/205 SeqNo: 267650 2-Chloronaphthalene 330 2-Chlorophenol 330 2-Methylnaphthalene 330 2-Methylphenol 330 2-Nitroaniline 600 2-Nitrophenol 330 3,3 -Dichlorobenzidine 660 3-Nitroaniline 600 4,6-Dinitro-2-methylphenol 600 4-Bromophenyl-phenylether 330 4-Chloro-3-methylphenol 660 4-Chloroaniline 660 4-Chlorophenyl-phenylether 330 4-Methylphenol 330 4-Nitroaniline 600 4-Nitrophenol 600 Acenaphthene 330 Acenaphthylene 330 Anthracene 330 Benzidine (M) 600 Benzo(a)anthracene 330 Benzo(a)pyrene 200 Benzo(b)fluoranthene 330 Benzo(g,h,i)perylene 330 Benzo(k)fluoranthene 330 Benzoic acid 600 Benzyl alcohol 660 Bis(2-chloroethoxy)methane 330 Bis(2-chloroethyl)ether 330 Bis(2-chloroisopropyl)ether 330 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 75 of 77

CLIENT: Work Order: Project: Leymaster Environmental Consulting, LLC N0803 Upper Ladera Linda Park ANALYTICAL QC SUMMARY REPORT TestCode: 8270SOIL Sample ID: MB-5548 SampType: MBLK TestCode: 8270SOIL Units: µg/kg Prep Date: 2/5/205 RunNo: 04664 PBS Batch ID: 5548 TestNo: EPA 8270C EPA 3550B Analysis Date: 2/5/205 SeqNo: 267650 Bis(2-ethylhexyl)phthalate 330 Butylbenzylphthalate 330 Chrysene 330 Di-n-butylphthalate 330 Di-n-octylphthalate 330 Dibenz(a,h)anthracene 200 Dibenzofuran 330 Diethylphthalate 330 Dimethylphthalate 330 Fluoranthene 330 Fluorene 330 Hexachlorobenzene 330 Hexachlorobutadiene 660 Hexachlorocyclopentadiene 660 Hexachloroethane 330 Indeno(,2,3-cd)pyrene 330 Isophorone 330 N-Nitrosodi-n-propylamine 330 N-Nitrosodiphenylamine 330 Naphthalene 330 Nitrobenzene 330 Pentachlorophenol 600 Phenanthrene 330 Phenol 330 Pyrene 330 Surr:,2-Dichlorobenzene-d4 26.000 3330 64.9 2 20 Surr: 2,4,6-Tribromophenol 943.667 3330 58.4 25 29 Surr: 2-Chlorophenol-d4 2297.667 3330 69.0 24 20 Surr: 2-Fluorobiphenyl 228.000 3330 63.9 33 20 Surr: 2-Fluorophenol 2379.000 3330 7.4 2 20 Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interference DO Surrogate Diluted Out Calculations are based on raw values 060 Artesia Blvd., Ste C, Cerritos, CA 90703 P: 562.29.7435 F: 562.29.7436 35 W. Post Rd., Las Vegas, NV 898 P: 702.307.2659 F: 702.307.269 76 of 77

Please review the checklist below. Any NO signifies non-compliance. Any non-compliance will be noted and must be understood as having an impact on the quality of the data. All tests will be performed as requested regardless of any compliance issues. If you have any questions or further instruction, please contact our Project Coordinator at (702) 307-2659. Cooler Received/Opened On: 2/5/205 Workorder: N0803 Rep sample Temp (Deg C): 5. IR Gun ID: 2 Temp Blank: Yes No Carrier name: Golden State Overnight Last 4 digits of Tracking No.: 5376 Packing Material Used: Bubble Wrap Cooling process: Ice Ice Pack Dry Ice Other None Sample Receipt Checklist. Shipping container/cooler in good condition? Yes No Not Present 2. Custody seals intact, signed, dated on shippping container/cooler? Yes No Not Present 3. Custody seals intact on sample bottles? Yes No Not Present 4. Chain of custody present? Yes No 5. Sampler's name present in COC? Yes No 6. Chain of custody signed when relinquished and received? Yes No 7. Chain of custody agrees with sample labels? Yes No 8. Samples in proper container/bottle? Yes No 9. Sample containers intact? Yes No 0. Sufficient sample volume for indicated test? Yes No. All samples received within holding time? Yes No 2. Temperature of rep sample or Temp Blank within acceptable limit? Yes No NA 3. Water - VOA vials have zero headspace? Yes No NA 4. Water - ph acceptable upon receipt? Yes No NA Example: ph > 2 for (CN,S); ph<2 for Metals 5. Did the bottle labels indicate correct preservatives used? Yes No NA 6. Were there Non-Conformance issues at login? Yes No NA Comments: W as Client notified? Yes No NA Checklist Completed By: YR Reviewed By:

WORK ORDER Summary LEYEN0 Project: Upper Ladera Linda Park 3220 Forrestal Drive QC Level: RTNE Comments: As = Arsenic; Tl = Thallium; u = Brass Tube 5-Dec-5 WorkOrder: N0803 Date Received: 2/5/205 Sample ID Client Sample ID Date Collected Date Due Matrix Test No Test Name Hld MS Sub Storage N0803-00A SS 2/4/205 9:5:00 AM 2/7/205 Soil EPA 5035 Closed System Purge and Trap VS 2/7/205 EPA 8260B VOLATILE ORGANIC COMPOUS BY GC/MS VS N0803-00B 2/7/205 EPA 5035 Encore VS 2/7/205 EPA 805B GASOLINE RANGE ORGANICS BY GC/FID VS N0803-00C VS N0803-002A SS-A 2/4/205 9:0:00 AM WS N0803-003A SS-B 2/4/205 9::00 AM WS N0803-004A SS-C 2/4/205 9:2:00 AM WS N0803-005A SS-A,B,C composite 2/4/205 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3060A Prep for Hexavalend Chromium WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDES/PCB WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: 8270C WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDE WS 2/7/205 EPA 600B TOTAL METALS BY ICP WS 2/7/205 EPA 6020 TOTAL METALS BY ICPMS WS 2/7/205 EPA 799 Hexavalent Chromium by IC WS 2/7/205 MERCURY PREP WS 2/7/205 EPA 747A TOTAL MERCURY BY COLD VAPOR TECHNIQUE 2/7/205 EPA 805B DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID WS WS Page of 7

WORK ORDER Summary LEYEN0 Project: Upper Ladera Linda Park 3220 Forrestal Drive QC Level: RTNE Comments: As = Arsenic; Tl = Thallium; u = Brass Tube 5-Dec-5 WorkOrder: N0803 Date Received: 2/5/205 Sample ID Client Sample ID Date Collected Date Due Matrix Test No Test Name Hld MS Sub Storage N0803-005A SS-A,B,C composite 2/4/205 2/7/205 Soil EPA 808A ORGANOCHLORINE PESTICIDES BY GC/ECD WS 2/7/205 EPA 8082 PCBs BY GC/ECD WS 2/7/205 EPA 8270C SEMIVOLATILE ORGANIC COMPOUS BY GC/MS 2/7/205 EPA 3550B SHAKE-OUT METHOD: EXTRACTABLE FUELS WS WS N0803-005B 2/7/205 EPA 84A Organic Compound SUB 2/7/205 EPA 85 Chlorinated Herbicides by GC SUB N0803-006A SS2 2/4/205 9:45:00 AM 2/7/205 EPA 5035 Closed System Purge and Trap VS 2/7/205 EPA 8260B VOLATILE ORGANIC COMPOUS BY GC/MS VS N0803-006B 2/7/205 EPA 5035 Encore VS 2/7/205 EPA 805B GASOLINE RANGE ORGANICS BY GC/FID VS N0803-006C VS N0803-007A SS2-A 2/4/205 9:47:00 AM WS N0803-008A SS2-B 2/4/205 9:48:00 AM WS N0803-009A SS2-C 2/4/205 9:49:00 AM WS N0803-00A SS2-A,B,C composite 2/4/205 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3060A Prep for Hexavalend Chromium WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDES/PCB WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: 8270C WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDE WS Page 2 of 7

WORK ORDER Summary LEYEN0 Project: Upper Ladera Linda Park 3220 Forrestal Drive QC Level: RTNE Comments: As = Arsenic; Tl = Thallium; u = Brass Tube 5-Dec-5 WorkOrder: N0803 Date Received: 2/5/205 Sample ID Client Sample ID Date Collected Date Due Matrix Test No Test Name Hld MS Sub Storage N0803-00A SS2-A,B,C composite 2/4/205 2/7/205 Soil EPA 600B TOTAL METALS BY ICP WS 2/7/205 EPA 6020 TOTAL METALS BY ICPMS WS 2/7/205 EPA 799 Hexavalent Chromium by IC WS 2/7/205 MERCURY PREP WS 2/7/205 EPA 747A TOTAL MERCURY BY COLD VAPOR TECHNIQUE 2/7/205 EPA 805B DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID 2/7/205 EPA 808A ORGANOCHLORINE PESTICIDES BY GC/ECD WS WS WS 2/7/205 EPA 8082 PCBs BY GC/ECD WS 2/7/205 EPA 8270C SEMIVOLATILE ORGANIC COMPOUS BY GC/MS 2/7/205 EPA 3550B SHAKE-OUT METHOD: EXTRACTABLE FUELS WS WS N0803-00B 2/7/205 EPA 84A Organic Compound SUB 2/7/205 EPA 85 Chlorinated Herbicides by GC SUB N0803-0A SS3 2/4/205 0:00:00 AM 2/7/205 EPA 5035 Closed System Purge and Trap VS 2/7/205 EPA 8260B VOLATILE ORGANIC COMPOUS BY GC/MS VS N0803-0B 2/7/205 EPA 5035 Encore VS 2/7/205 EPA 805B GASOLINE RANGE ORGANICS BY GC/FID VS N0803-0C VS N0803-02A SS3-A 2/4/205 9:57:00 AM WS N0803-03A SS3-B 2/4/205 9:58:00 AM WS N0803-04A SS3-C 2/4/205 9:59:00 AM WS Page 3 of 7

WORK ORDER Summary LEYEN0 Project: Upper Ladera Linda Park 3220 Forrestal Drive QC Level: RTNE Comments: As = Arsenic; Tl = Thallium; u = Brass Tube 5-Dec-5 WorkOrder: N0803 Date Received: 2/5/205 Sample ID Client Sample ID Date Collected Date Due Matrix Test No Test Name Hld MS Sub Storage N0803-05A SS3-A,B,C composite 2/4/205 2/7/205 Soil EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3060A Prep for Hexavalend Chromium WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDES/PCB WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: 8270C WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDE WS 2/7/205 EPA 600B TOTAL METALS BY ICP WS 2/7/205 EPA 6020 TOTAL METALS BY ICPMS WS 2/7/205 EPA 799 Hexavalent Chromium by IC WS 2/7/205 MERCURY PREP WS 2/7/205 EPA 747A TOTAL MERCURY BY COLD VAPOR TECHNIQUE 2/7/205 EPA 805B DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID 2/7/205 EPA 808A ORGANOCHLORINE PESTICIDES BY GC/ECD WS WS WS 2/7/205 EPA 8082 PCBs BY GC/ECD WS 2/7/205 EPA 8270C SEMIVOLATILE ORGANIC COMPOUS BY GC/MS 2/7/205 EPA 3550B SHAKE-OUT METHOD: EXTRACTABLE FUELS WS WS N0803-05B 2/7/205 EPA 84A Organic Compound SUB 2/7/205 EPA 85 Chlorinated Herbicides by GC SUB N0803-06A SS4 2/4/205 0:5:00 AM 2/7/205 EPA 5035 Closed System Purge and Trap VS Page 4 of 7

WORK ORDER Summary LEYEN0 Project: Upper Ladera Linda Park 3220 Forrestal Drive QC Level: RTNE Comments: As = Arsenic; Tl = Thallium; u = Brass Tube 5-Dec-5 WorkOrder: N0803 Date Received: 2/5/205 Sample ID Client Sample ID Date Collected Date Due Matrix Test No Test Name Hld MS Sub Storage N0803-06A SS4 2/4/205 0:5:00 AM 2/7/205 Soil EPA 8260B VOLATILE ORGANIC COMPOUS BY GC/MS VS N0803-06B 2/7/205 EPA 5035 Encore VS 2/7/205 EPA 805B GASOLINE RANGE ORGANICS BY GC/FID VS N0803-06C VS N0803-07A SS4-A 2/4/205 0:6:00 AM WS N0803-08A SS4-B 2/4/205 0:7:00 AM WS N0803-09A SS4-C 2/4/205 0:0:00 AM WS N0803-020A SS4-A,B,C composite 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3060A Prep for Hexavalend Chromium WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDES/PCB WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: 8270C WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDE WS 2/7/205 EPA 600B TOTAL METALS BY ICP WS 2/7/205 EPA 6020 TOTAL METALS BY ICPMS WS 2/7/205 EPA 799 Hexavalent Chromium by IC WS 2/7/205 MERCURY PREP WS 2/7/205 EPA 747A TOTAL MERCURY BY COLD VAPOR TECHNIQUE 2/7/205 EPA 805B DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FID 2/7/205 EPA 808A ORGANOCHLORINE PESTICIDES BY GC/ECD WS WS WS Page 5 of 7

WORK ORDER Summary LEYEN0 Project: Upper Ladera Linda Park 3220 Forrestal Drive QC Level: RTNE Comments: As = Arsenic; Tl = Thallium; u = Brass Tube 5-Dec-5 WorkOrder: N0803 Date Received: 2/5/205 Sample ID Client Sample ID Date Collected Date Due Matrix Test No Test Name Hld MS Sub Storage N0803-020A SS4-A,B,C composite 2/7/205 Soil EPA 8082 PCBs BY GC/ECD WS 2/7/205 EPA 8270C SEMIVOLATILE ORGANIC COMPOUS BY GC/MS 2/7/205 EPA 3550B SHAKE-OUT METHOD: EXTRACTABLE FUELS WS WS N0803-020B 2/7/205 EPA 84A Organic Compound SUB 2/7/205 EPA 85 Chlorinated Herbicides by GC SUB N0803-02A SS5 2/4/205 0:35:00 AM 2/7/205 EPA 5035 Closed System Purge and Trap VS 2/7/205 EPA 8260B VOLATILE ORGANIC COMPOUS BY GC/MS VS N0803-02B 2/7/205 EPA 5035 Encore VS 2/7/205 EPA 805B GASOLINE RANGE ORGANICS BY GC/FID VS N0803-02C VS N0803-022A SS2-A 2/4/205 0:30:00 AM WS N0803-023A SS2-B 2/4/205 0:37:00 AM WS N0803-024A SS5-C 2/4/205 0:38:00 AM WS N0803-025A SS5-A,B,C composite 2/4/205 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3050B SOPREP TOTAL METALS WS 2/7/205 EPA 3060A Prep for Hexavalend Chromium WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDES/PCB WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: 8270C WS 2/7/205 EPA 3550B ULTRASONIC EXTRACTION: PESTICIDE WS 2/7/205 EPA 600B TOTAL METALS BY ICP WS Page 6 of 7

35-353 W Post Rd., Las Vegas, NV 898 www.atl-labs.com TEL: 7023072659 FAX: 702307269 CHAIN-OF-CUSTODY RECORD Page of QC Level: RTNE Subcontractor: BC Labs 400 Atlas Court Bakersfield, CA 93308 TEL: (66) 327-49 FAX: (66) 327-98 Acct #: Field Sampler: Charles Lindeman 7-Dec-5 Sample ID Matrix Date Collected Bottle Type Requested Tests EPA 84A EPA 85 N0803-005B / SS-A,B,C composite Soil 2/4/205 4OZG N0803-00B / SS2-A,B,C composite Soil 2/4/205 4OZG N0803-05B / SS3-A,B,C composite Soil 2/4/205 4OZG N0803-020B / SS4-A,B,C composite Soil 2/4/205 4OZG N0803-025B / SS5-A,B,C composite Soil 2/4/205 4OZG General Comments: Please email sample receipt acknowledgement to the PM. Please use PO#:N803A Please email Invoices and Account Receivable Statements to AssetAP@assetlaboratories.com. Molky at (562)-29-7435. Please e-mail results to reports@ assetlaboratories.com by:3 Day TAT For questions, call Date/Time Date/Time Relinquished by: Relinquished by: Received by: Received by:

Date of Report: 2/8/205 Laboratories, Inc. Environmental Testing Laboratory Since 949 Molky Brar 35-353 W. Post Rd Las Vegas, NV 898 Client Project: BCL Project: BCL Work Order: Invoice ID: Cerritos Lab Cerritos 532045 B22896 Enclosed are the results of analyses for samples received by the laboratory on 2/5/205. If you have any questions concerning this report, please feel free to contact me. Sincerely, Contact Person: Vanessa Sandoval Client Service Rep Authorized Signature Certifications: CA ELAP #86; NV #CA0004; OR ELAP #4032-00; AK UST0 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 400 Atlas Court Bakersfield, CA 93308 (66) 327-49 FAX (66) 327-98 www.bclabs.com Report ID: 000429696 Page of 22

Laboratories, Inc. Environmental Testing Laboratory Since 949 Table of Contents Sample Information Chain of Custody and Cooler Receipt form... 3 Laboratory / Client Sample Cross Reference... 5 Sample Results 532045-0 - SS-A,B,C Composite Organo-Phosphorus Pesticide Analysis (EPA Method 84A)... 6 Chlorinated Herbicides (EPA Method 85A)... 7 532045-02 - SS2-A,B,C Composite Organo-Phosphorus Pesticide Analysis (EPA Method 84A)... 8 Chlorinated Herbicides (EPA Method 85A)... 9 532045-03 - SS3-A,B,C Composite Organo-Phosphorus Pesticide Analysis (EPA Method 84A)... 0 Chlorinated Herbicides (EPA Method 85A)... 532045-04 - SS4-A,B,C Composite Organo-Phosphorus Pesticide Analysis (EPA Method 84A)... 2 Chlorinated Herbicides (EPA Method 85A)... 3 532045-05 - SS5-A,B,C Composite Organo-Phosphorus Pesticide Analysis (EPA Method 84A)... 4 Chlorinated Herbicides (EPA Method 85A)... 5 Quality Control Reports Organo-Phosphorus Pesticide Analysis (EPA Method 84A) Method Blank Analysis... 6 Laboratory Control Sample... 7 Precision and Accuracy... 8 Chlorinated Herbicides (EPA Method 85A) Method Blank Analysis... 9 Laboratory Control Sample... 20 Precision and Accuracy... 2 Notes Notes and Definitions... 22 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 400 Atlas Court Bakersfield, CA 93308 (66) 327-49 FAX (66) 327-98 www.bclabs.com Report ID: 000429696 Page 2 of 22

Laboratories, Inc. Environmental Testing Laboratory Since 949 Chain of Custody and Cooler Receipt Form for 532045 Page of 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 400 Atlas Court Bakersfield, CA 93308 (66) 327-49 FAX (66) 327-98 www.bclabs.com Report ID: 000429696 Page 3 of 22

Laboratories, Inc. Environmental Testing Laboratory Since 949 Chain of Custody and Cooler Receipt Form for 532045 Page 2 of 2 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. All results listed in this report are for the exclusive use of the submitting party. BC Laboratories, Inc. assumes no responsibility for report alteration, separation, detachment or third party interpretation. 400 Atlas Court Bakersfield, CA 93308 (66) 327-49 FAX (66) 327-98 www.bclabs.com Report ID: 000429696 Page 4 of 22