MEMORANDUM SUBJECT: PALOS VERDES PENINSULA UNIFIED SCHOOL DISTRICT SOIL UPDATE

Transcription

1 MEMORANDUM Agenda Item #: 8a Meeting Date: 10/10/2016 TO: THRU: FROM: HONORABLE MAYOR AND CITY COUNCIL ANTON DAHLERBRUCH, CITY MANAGER /S/ JACQUELINE WU, ADMINISTRATIVE ANALYST /S/ SUBJECT: PALOS VERDES PENINSULA UNIFIED SCHOOL DISTRICT SOIL UPDATE DATE: OCTOBER 10, 2016 At its September 13, 2016 meeting, the City was informed that dirt from the Ladera Linda fields in Rancho Palos Verdes may have been transported to school sites in the City of Palos Verdes Estates. In response, City staff provided a report at the City Council meeting on September 27, 2016 stating that staff was advised that no dirt was received in Palos Verdes Estates. At the meeting, it was then clarified that school sites in Palos Verdes Estates may have received dirt from the Palos Verdes Peninsula Unified School District (PVPUSD) maintenance yard in Rolling Hills. It was alleged that the dirt was contaminated. Furthermore, the City s easement with the PVPUSD was referenced as providing the City with control over the dirt potentially received in Palos Verdes Estates. This memorandum is to report on the City s inquiry into this matter, and it is for your receipt and file. Transportation of dirt to Palos Verdes Estates schools or sites On September 29 th, City staff contacted PVPUSD Superintendent Donald Austin regarding whether dirt from PVPUSD s Rolling Hills maintenance yard was delivered to schools or sites within the boundaries of Palos Verdes Estates. In correspondence with Superintendent Austin, PVPUSD confirmed that dirt was used to fill gopher holes on the campuses of Palos Verdes High School and Montemalaga Elementary School. Page 1 of 2 001

2 Allegation of tainted dirt According to the PVPUSD, the dirt at the maintenance yard in Rolling Hills was independently tested and cleaned prior to any use on facilities prior to its delivery to schools in Palos Verdes Estates. The results of the soil sample analysis from from the PVPUSD Rolling Hills maintenance yard, as posted on the PVPUSD website, show that soil samples tested to be safe and clean. Moreover, PVPUSD has stated that the dirt delivered to Palos Verdes High School and Montemalaga Elementary School was tested separately from dirt at the Ladera Linda fields. PVPUSD/City Easement Agreement The City entered into an Open Space Preservation Agreement with PVPUSD on May 19, 1998, which granted an Easement to PVPUSD for specifically and only the field at Malaga Cove School. Additionally, in Section 8, Subsection B of the easement, PVPUSD indemnifies the City from any claims that may arise as a result of the accumulation, transportation, and migration of hazardous materials. The indemnification includes any cleanup, remediation, removal or restoration work required by federal, state, or local governmental agencies and any and all associated costs. Moreover, Section 2, Subsection D assigns all responsibility for maintenance of the field to the PVPUSD. Moving Forward The City of Palos Verdes Estates has no jurisdiction over the construction, permitting, and inspection of school properties. The PVPUSD is an independent governmental agency. As such, concerns about school sites are appropriately addressed directly to the School District or oversight agencies such as DTSC, AQMD and State Superintendent. However, the City maintains a strong focus and commitment to the safety of its residents and the public. If it is determined through the DTSC and AQMD investigation that the School District distributed soil in the City, the City will want to know that for the safety of the public, measures and protections are in place to prevent future such occurrences. In turn, City staff will monitor the outcome of the investigations. Due to the broad exemptions from local land use and zoning regulations that are afforded to school districts under State law, the options that the City has for exerting meaningful, direct pressure on this issue are limited, short of initiating litigation. This matter is under investigation by the Department of Toxic Substances Control, the South Coast Air Quality Management District and other local, State and Federal agencies. References: PVPUSD has posted soil analysis reports and communication with governmental regulatory agencies on its website. These materials can be found at: The City of Rancho Palos Verdes has prepared a detailed staff report. The staff report can be accessed at: Attachment A: Supplemental Information Page 2 of 2 002

3 ATTACHMENT A 003

4 November 18, 2015 Lydia Cano Deputy Superintendant Palos Verdes Peninsula Unified School District 375 Via Almer Palos Verdes Estates, California Re: Results of Soil Sample Analysis from Soil Stockpile at Palos Verdes Peninsula Unified School District (PVUSD) Maintenance Yard, 38 Crest Road West, Rolling Hills, California Project No. PVPU Dear Ms. Cano: (Alta) was requested by the Palos Verdes Peninsula Angeles Unified School District (PVPUSD) to conduct environmental soil sampling from a soil stockpile located at the PVPUSD maintenance yard at 38 Crest Road West, Rolling Hills, California. The following is a summary of the sampling and analysis of the soil stockplile sample. Soil Sampling and Analysis On November 2, 2015, Alta collected one (1) soil sample (sample no ) from the soil stockpile located at PVPUSD maintenance yard. The soil sample was submitted under chain-of-custody to Eurofins Calscience, Inc., a State certified laboratory (ELAP, Certification No. 2944), for analysis of the following potential contaminants: Volatile Organic Compounds (VOCs) by EPA Method 8260B/5035 Semi-Volatile Organic Compounds (SVOCs) by EPA Method 8270C Total Petroleum Hydrocarbons as carbon chain (TPH-cc) by EPA Method 8015M Organochlorine Pesticides (OCPs) by EPA Method 8081A CCR Title 22 (CAM 17) Metals by EPA Methods 6010B/7470A Hexavalent Chromium by EPA Method 7199 Organic Phosphorous Pesticides (OPPs) by EPA Method 8141A Polychlorinated Biphenyls (PCBs) by EPA Method 8082 Chlorinated Herbicides by EPA Method by 8151A 3777 Long Beach Boulevard, Annex Building, Long Beach, CA United States of America T (562) F (562) Toll-free (US only) (800) PVPU _Report.docx 004

5 Soil Sample Results A summary of the analytical results for the soil sample is provided in Attachment A (Table 1). A photograph of the soil stockpile is located in Attachment B. The laboratory analytical report and chain-of-custody are provided in Attachment C. Discussion As indicated in the analytical results table (Table 1, Attachment A), the soil sample collected from the soil stockpile exhibited detectable concentrations of the Title 22 metals barium, chromium, cobalt, copper, lead, nickel, vanadium, and zinc. The detected metal results (Attachment A, Table 1) are below California and RCRA (federal) hazardous waste criteria threshold values and State of California Office of Environmental Health Hazard Assessment (OEHHA) soil screening levels ( In addition, 4,4 -DDT was detected above the laboratory reporting limits, but below California and RCRA hazardous waste criteria and the OEHHA soil screening levels. No other chemical compounds were detected in the soil sample. Assumptions and Limitations This report was prepared exclusively for use by the Palos Verdes Peninsula Unified School District, and may not be relied upon by any other person or entity without s express written permission. The information, conclusions and recommendations described in this report apply to conditions existing at certain locations when services were performed and are intended only for the specific purposes, locations, time frames and project parameters indicated. cannot be responsible for the impact of any changes in environmental standards, practices or regulations after performance of services. In performing our professional services, we have applied present engineering and scientific judgment and used a level of effort consistent with the current standard of practice for similar types of studies. As applicable, has relied in good faith upon representations and information furnished by individuals with respect to operations and existing property conditions, to the extent that they have not been contradicted by data obtained from other sources. Accordingly, accepts no responsibility for any deficiencies, omissions, misrepresentations, or fraudulent acts of persons interviewed. will not accept any liability for loss, injury claim, or damage arising directly or indirectly from any use or reliance on this report. makes no warranty, expressed or implied. For and on behalf of, Steven Morrill, PE Senior Project Manager/Engineer III David Schack Vice President, Building Sciences Attachments: A Table1 (Analytical Results Table) B Photo of Soil Stockpile C Laboratory Analytical Report and Chain-of-Custody Documentation PVPU November 18,

6 Attachment A Table 1 006

7 TABLE 1 SUMMARY OF RESULTS Soil Sample from PVPUSD Maintenance Yard Stockpile Soil Sample ID Sample Date 11/2/2015 Antimony mg/kg ND<0.743 Arsenic mg/kg ND<0.743 Barium mg/kg 26.8 Beryllium mg/kg ND<0.248 Cadmium mg/kg ND<0.495 Chromium mg/kg 4.97 Cobalt mg/kg 2.11 Copper mg/kg 2.28 Lead mg/kg 2.35 Mercury mg/kg ND< Molybdenum mg/kg ND<0.248 Nickel mg/kg 3.33 Selenium mg/kg ND<0.743 Sliver mg/kg ND<0.248 Thallium mg/kg ND<0.743 Vanadium mg/kg 8.10 Zinc mg/kg 9.69 California and/or RCRA Hazardous Waste Criteria California and/or RCRA Hazardous Waste Criteria Exceeded? OEHHA Soil Screening Numbers Residential Soil for Detected Compound Residential Soil Criteria Exceeded? Title 22 Metals by EPA 6010B/7471A TTLC 1 = 500 mg/kg STLC 2 = 15 mg/l No Not Detected No TTLC = 500 mg/kg STLC = 5 mg/l TCLP 3 = 5 mg/l No Not Detected No TTLC = 10,000 mg/kg STLC = 100 mg/l TCLP = 100 mg/l No 5,200 mg/kg No TTLC = 75 mg/kg STLC = 0.75 mg/l No Not Detected No TTLC = 100 mg/kg STLC = 1 mg/l TCLP = 1 mg/l No Not Detected No TTLC = 2,500 mg/kg STLC = 5 mg/l TCLP = 5 mg/l No 100,000 mg/kg No TTLC = 8,000 mg/kg STLC = 80 mg/l No 660 mg/kg No TTLC = 2,500 mg/kg STLC = 25 mg/l No 3,000 mg/kg No TTLC = 1,000 mg/kg STLC = 5 mg/l TCLP = 5 mg/l No 80 mg/kg No TTLC = 20 mg/kg STLC = 0.2 mg/l TCLP = 0.2 mg/l No Not Detected No TTLC = 3,500 mg/kg STLC = 350 mg/l No Not Detected No TTLC = 2,000 mg/kg STLC = 20 mg/l No 1,600 mg/kg No TTLC = 100 mg/kg STLC = 1 mg/l TCLP = 1 mg/l No Not Detected No TTLC = 500 mg/kg STLC = 5 mg/l TCLP = 5 mg/l No Not Detected No TTLC = 700 mg/kg STLC = 7 mg/l No Not Detected No TTLC = 2,400 mg/kg STLC = 24 mg/l No 530 mg/kg No TTLC = 5,000 mg/kg STLC = 250 mg/l No 23,000 mg/kg No PVPU Page 1 of 2 007

8 TABLE 1 SUMMARY OF RESULTS Soil Sample from PVPUSD Maintenance Yard Stockpile Soil Sample ID Sample Date 11/2/2015 California and/or RCRA Hazardous Waste Criteria California and/or RCRA Hazardous Waste Criteria Exceeded? OEHHA Soil Screening Numbers Residential Soil for Detected Compound Residential Soil Criteria Exceeded? Organochlorine Pesticides by EPA 8081A TTLC = 1.0 mg/kg 4,4'-DDT (DDT) µg/kg 15 STLC = 0.1 mg/l No 1,600 µg/kg No All other OCPs µg/kg ND TTLC = 5.0 mg/kg STLC = 0.5 mg/l TCLP = 0.5 mg/l No Not Detected No Semi-Volatile Organic compounds (SVOCs) by EPA 8270C All SVOCs mg/kg ND Varies No Not Detected No Total Petroleum Hydrocarbons (TPH) Full Scan by EPA 8015M TPH Full Scan mg/kg ND Varies No Not Detected No Hexalavent Chromium by EPA 7199 Hexavalent Chromium mg/kg ND Varies No Not Detected No Polychlorinated Biphenyls (PCBs) by EPA 8082 All PCBs µg/kg ND Varies No Not Detected No Organophosphorous Pesticides by EPA 8141A All compounds µg/kg ND --- No Not Detected No Chlorinated Herbicides by EPA 8151A All compounds µg/kg ND Varies No Not Detected No Volatile Organic Compounds (VOCs) by EPA 8260B All VOCs µg/kg ND Varies No Not Detected No Screening Values For Residential Soil Exceeded? No California and/or RCRA Hazardous Waste Criteria Exceeded? No Notes: TTLC = Total Threshold Limit Concentration STLC = Soluble Threshold Limit Concentration TCLP = Toxicity Characteristic Leaching Procedure OEHHA = State of California Office of Environmental Health Hazard Assessment ND = Not Detected above laboratory method detection limit(s). J = Estimated value between laboratory method detection limit (MDL)and practical quantitative limit (PQL) PVPU Page 2 of 2 008

9 Attachment B Photo of Soil Stockpile 009

10 The soil stockpile located at the Palos Verdes Peninsula USD Maintenance Yard (38 Crest Road West, Rolling Hills, California). One discrete soil sample was collected on November 2, 2015 and submitted for analysis for potential contaminants in import/export soil. 010

11 Attachment C Laboratory Analytical Reports and Chain-of-Custody Documentation 011

12 Page 1 of 42 WORK ORDER NUMBER: AIR SOIL WATER MARINE CHEMISTRY Analytical Report For Client: Client Project Name: PVPU - MAINT YARD Attention: Dave Schack Approved for release on 11/10/2015 Vikas Patel Project Manager by: Eurofins Calscience, Inc. (Calscience) certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analyses, if any, is attached to this report. The results in this report are limited to the sample(s) tested and any reproduction thereof must be made in its entirety. The client or recipient of this report is specifically prohibited from making material changes to said report and, to the extent that such changes are made, Calscience is not responsible, legally or otherwise. The client or recipient agrees to indemnify Calscience for any defense to any litigation which may arise. 012

13 Page 2 of 42 Contents Client Project Name: PVPU - MAINT YARD Work Order Number: Work Order Narrative Detections Summary Client Sample Data EPA 6010B/7471A CAC Title 22 Metals (Solid) EPA 7471A Mercury (Solid) EPA 8081A Organochlorine Pesticides (Solid) EPA 8082 PCB Aroclors (Solid) EPA 8141A Organophosphorus Pesticides (Solid) EPA 8151A Chlorinated Herbicides (Solid) EPA 8270C Semi-Volatile Organics (Solid) EPA 8260B Volatile Organics Prep 5035 (Solid) Quality Control Sample Data MS/MSD LCS/LCSD Sample Analysis Summary Glossary of Terms and Qualifiers Chain-of-Custody/Sample Receipt Form

14 Page 3 of 42 Work Order Narrative Page 1 of 1 Condition Upon Receipt: Samples were received under Chain-of-Custody (COC) on 11/02/15. They were assigned to Work Order Unless otherwise noted on the Sample Receiving forms all samples were received in good condition and within the recommended EPA temperature criteria for the methods noted on the COC. The COC and Sample Receiving Documents are integral elements of the analytical report and are presented at the back of the report. Holding Times: All samples were analyzed within prescribed holding times (HT) and/or in accordance with the Calscience Sample Acceptance Policy unless otherwise noted in the analytical report and/or comprehensive case narrative, if required. Any parameter identified in 40CFR Part Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR Table II, footnote 4), is considered a "field" test and the reported results will be qualified as being received outside of the stated holding time unless received at the laboratory within 15 minutes of the collection time. Quality Control: All quality control parameters (QC) were within established control limits except where noted in the QC summary forms or described further within this report. Subcontractor Information: Unless otherwise noted below (or on the subcontract form), no samples were subcontracted. Additional Comments: Air - Sorbent-extracted air methods (EPA TO-4A, EPA TO-10, EPA TO-13A, EPA TO-17): Analytical results are converted from mass/sample basis to mass/volume basis using client-supplied air volumes. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are always reported on a wet weight basis. 014

15 Page 4 of 42 Detections Summary Client: Project Name: PVPU - MAINT YARD Received: 11/02/15 Attn: Dave Schack Page 1 of 1 Client SampleID Analyte Result Qualifiers RL Units Method Extraction ( ) Barium mg/kg EPA 6010B EPA 3050B Chromium mg/kg EPA 6010B EPA 3050B Cobalt mg/kg EPA 6010B EPA 3050B Copper mg/kg EPA 6010B EPA 3050B Lead mg/kg EPA 6010B EPA 3050B Nickel mg/kg EPA 6010B EPA 3050B Vanadium mg/kg EPA 6010B EPA 3050B Zinc mg/kg EPA 6010B EPA 3050B 4,4'-DDT ug/kg EPA 8081A EPA 3545 Subcontracted analyses, if any, are not included in this summary. * MDL is shown 015

16 Page 5 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3050B Method: EPA 6010B Units: mg/kg Project: PVPU - MAINT YARD Page 1 of 2 Client Sample Number Lab Sample Number Date/Time Collected C 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid ICP /03/15 11/04/15 12:31 Parameter Result RL DF Qualifiers Antimony ND Arsenic ND Barium Beryllium ND Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc QC Batch ID L03 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 016

17 Page 6 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3050B Method: EPA 6010B Units: mg/kg Project: PVPU - MAINT YARD Page 2 of 2 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed Method Blank N/A Solid ICP /03/15 11/04/15 12:27 Parameter Result RL DF Qualifiers Antimony ND Arsenic ND Barium ND Beryllium ND Cadmium ND Chromium ND Cobalt ND Copper ND Lead ND Molybdenum ND Nickel ND Selenium ND Silver ND Thallium ND Vanadium ND Zinc ND QC Batch ID L03 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 017

18 Page 7 of 42 Analytical Report Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid Mercury 05 11/04/15 11/04/15 19:26 Parameter Result RL DF Qualifiers Mercury ND Date Received: 11/02/15 Preparation: Method: EPA 7471A Total EPA 7471A Project: PVPU - MAINT YARD Page 1 of 1 Units: mg/kg QC Batch ID L02 Method Blank N/A Solid Mercury 05 11/04/15 11/04/15 19:43 Parameter Result RL DF Qualifiers Mercury ND L02 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 018

19 Page 8 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: PVPU - MAINT YARD Page 1 of 2 Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC 44 11/03/15 11/04/15 12:59 Parameter Result RL DF Qualifiers Aldrin ND Alpha-BHC ND Beta-BHC ND Chlordane ND ,4'-DDD ND ,4'-DDE ND ,4'-DDT Delta-BHC ND Dieldrin ND Endosulfan I ND Endosulfan II ND Endosulfan Sulfate ND Endrin ND Endrin Aldehyde ND Endrin Ketone ND Gamma-BHC ND Heptachlor ND Heptachlor Epoxide ND Methoxychlor ND Toxaphene ND QC Batch ID L03A Surrogate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl ,4,5,6-Tetrachloro-m-Xylene RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 019

20 Page 9 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: PVPU - MAINT YARD Page 2 of 2 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed Method Blank N/A Solid GC 44 11/03/15 11/03/15 16:20 Parameter Result RL DF Qualifiers Aldrin ND Alpha-BHC ND Beta-BHC ND Chlordane ND ,4'-DDD ND ,4'-DDE ND ,4'-DDT ND Delta-BHC ND Dieldrin ND Endosulfan I ND Endosulfan II ND Endosulfan Sulfate ND Endrin ND Endrin Aldehyde ND Endrin Ketone ND Gamma-BHC ND Heptachlor ND Heptachlor Epoxide ND Methoxychlor ND Toxaphene ND QC Batch ID L03A Surrogate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl ,4,5,6-Tetrachloro-m-Xylene RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 020

21 Page 10 of 42 Analytical Report Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC 31 11/03/15 11/03/15 23:07 Parameter Result RL DF Qualifiers Aroclor-1016 ND Aroclor-1221 ND Aroclor-1232 ND Aroclor-1242 ND Aroclor-1248 ND Aroclor-1254 ND Aroclor-1260 ND Aroclor-1262 ND Aroclor-1268 ND Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8082 Project: PVPU - MAINT YARD Page 1 of 1 Units: ug/kg QC Batch ID L04A Surrogate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl ,4,5,6-Tetrachloro-m-Xylene Method Blank N/A Solid GC 31 11/03/15 11/03/15 19:38 Parameter Result RL DF Qualifiers Aroclor-1016 ND Aroclor-1221 ND Aroclor-1232 ND Aroclor-1242 ND Aroclor-1248 ND Aroclor-1254 ND Aroclor-1260 ND Aroclor-1262 ND Aroclor-1268 ND L04A Surrogate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl ,4,5,6-Tetrachloro-m-Xylene RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 021

22 Page 11 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8141A Units: mg/kg Project: PVPU - MAINT YARD Page 1 of 2 Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC 26 11/04/15 11/05/15 14:44 Parameter Result RL DF Qualifiers Demeton-o/s ND Azinphos Methyl ND Bolstar ND Chlorpyrifos ND Coumaphos ND Diazinon ND Dichlorvos ND Disulfoton ND Ethoprop ND Fensulfothion ND Fenthion ND Merphos ND Methyl Parathion ND Mevinphos ND Naled ND Phorate ND Ronnel ND Stirophos ND Tokuthion ND Trichloronate ND QC Batch ID L01 Surrogate Rec. (%) Control Limits Qualifiers Tributylphosphate RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 022

23 Page 12 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8141A Units: mg/kg Project: PVPU - MAINT YARD Page 2 of 2 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed Method Blank N/A Solid GC 26 11/04/15 11/05/15 01:01 Parameter Result RL DF Qualifiers Demeton-o/s ND Azinphos Methyl ND Bolstar ND Chlorpyrifos ND Coumaphos ND Diazinon ND Dichlorvos ND Disulfoton ND Ethoprop ND Fensulfothion ND Fenthion ND Merphos ND Methyl Parathion ND Mevinphos ND Naled ND Phorate ND Ronnel ND Stirophos ND Tokuthion ND Trichloronate ND QC Batch ID L01 Surrogate Rec. (%) Control Limits Qualifiers Tributylphosphate RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 023

24 Page 13 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 8151A Method: EPA 8151A Units: ug/kg Project: PVPU - MAINT YARD Page 1 of 1 Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC 40 11/05/15 11/06/15 22:29 Parameter Result RL DF Qualifiers Dalapon ND Dicamba ND MCPP ND MCPA ND Dichlorprop ND ,4-D ND ,4,5-TP (Silvex) ND ,4,5-T ND ,4-DB ND Dinoseb ND Surrogate Rec. (%) Control Limits Qualifiers 2,4-Dichlorophenylacetic acid QC Batch ID L20A Method Blank N/A Solid GC 40 11/05/15 11/06/15 18:07 Parameter Result RL DF Qualifiers Dalapon ND Dicamba ND MCPP ND MCPA ND Dichlorprop ND ,4-D ND ,4,5-TP (Silvex) ND ,4,5-T ND ,4-DB ND Dinoseb ND L20A Surrogate Rec. (%) Control Limits Qualifiers 2,4-Dichlorophenylacetic acid RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 024

25 Page 14 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Units: mg/kg Project: PVPU - MAINT YARD Page 1 of 6 Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC/MS SS 11/04/15 11/05/15 16:17 Parameter Result RL DF Qualifiers Acenaphthene ND Acenaphthylene ND Aniline ND Anthracene ND Azobenzene ND Benzidine ND Benzo (a) Anthracene ND Benzo (a) Pyrene ND Benzo (b) Fluoranthene ND Benzo (g,h,i) Perylene ND Benzo (k) Fluoranthene ND Benzoic Acid ND Benzyl Alcohol ND Bis(2-Chloroethoxy) Methane ND Bis(2-Chloroethyl) Ether ND Bis(2-Chloroisopropyl) Ether ND Bis(2-Ethylhexyl) Phthalate ND Bromophenyl-Phenyl Ether ND Butyl Benzyl Phthalate ND Chloro-3-Methylphenol ND Chloroaniline ND Chloronaphthalene ND Chlorophenol ND Chlorophenyl-Phenyl Ether ND Chrysene ND Di-n-Butyl Phthalate ND Di-n-Octyl Phthalate ND Dibenz (a,h) Anthracene ND Dibenzofuran ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND ,3'-Dichlorobenzidine ND ,4-Dichlorophenol ND Diethyl Phthalate ND QC Batch ID L03 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 025

26 Page 15 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Units: mg/kg Project: PVPU - MAINT YARD Page 2 of 6 Parameter Result RL DF Qualifiers Dimethyl Phthalate ND ,4-Dimethylphenol ND ,6-Dinitro-2-Methylphenol ND ,4-Dinitrophenol ND ,4-Dinitrotoluene ND ,6-Dinitrotoluene ND Fluoranthene ND Fluorene ND Hexachloro-1,3-Butadiene ND Hexachlorobenzene ND Hexachlorocyclopentadiene ND Hexachloroethane ND Indeno (1,2,3-c,d) Pyrene ND Isophorone ND Methylnaphthalene ND Methylnaphthalene ND Methylphenol ND /4-Methylphenol ND N-Nitroso-di-n-propylamine ND N-Nitrosodimethylamine ND N-Nitrosodiphenylamine ND Naphthalene ND Nitroaniline ND Nitroaniline ND Nitroaniline ND Nitrobenzene ND Nitrophenol ND Nitrophenol ND Pentachlorophenol ND Phenanthrene ND Phenol ND Pyrene ND Pyridine ND ,2,4-Trichlorobenzene ND ,4,6-Trichlorophenol ND ,4,5-Trichlorophenol ND Surrogate Rec. (%) Control Limits Qualifiers 2-Fluorobiphenyl RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 026

27 Page 16 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Units: mg/kg Project: PVPU - MAINT YARD Page 3 of 6 Surrogate Rec. (%) Control Limits Qualifiers 2-Fluorophenol Nitrobenzene-d p-terphenyl-d Phenol-d ,4,6-Tribromophenol RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 027

28 Page 17 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Units: mg/kg Project: PVPU - MAINT YARD Page 4 of 6 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed Method Blank N/A Solid GC/MS SS 11/04/15 11/05/15 12:33 Parameter Result RL DF Qualifiers Acenaphthene ND Acenaphthylene ND Aniline ND Anthracene ND Azobenzene ND Benzidine ND Benzo (a) Anthracene ND Benzo (a) Pyrene ND Benzo (b) Fluoranthene ND Benzo (g,h,i) Perylene ND Benzo (k) Fluoranthene ND Benzoic Acid ND Benzyl Alcohol ND Bis(2-Chloroethoxy) Methane ND Bis(2-Chloroethyl) Ether ND Bis(2-Chloroisopropyl) Ether ND Bis(2-Ethylhexyl) Phthalate ND Bromophenyl-Phenyl Ether ND Butyl Benzyl Phthalate ND Chloro-3-Methylphenol ND Chloroaniline ND Chloronaphthalene ND Chlorophenol ND Chlorophenyl-Phenyl Ether ND Chrysene ND Di-n-Butyl Phthalate ND Di-n-Octyl Phthalate ND Dibenz (a,h) Anthracene ND Dibenzofuran ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND ,3'-Dichlorobenzidine ND ,4-Dichlorophenol ND Diethyl Phthalate ND QC Batch ID L03 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 028

29 Page 18 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Units: mg/kg Project: PVPU - MAINT YARD Page 5 of 6 Parameter Result RL DF Qualifiers Dimethyl Phthalate ND ,4-Dimethylphenol ND ,6-Dinitro-2-Methylphenol ND ,4-Dinitrophenol ND ,4-Dinitrotoluene ND ,6-Dinitrotoluene ND Fluoranthene ND Fluorene ND Hexachloro-1,3-Butadiene ND Hexachlorobenzene ND Hexachlorocyclopentadiene ND Hexachloroethane ND Indeno (1,2,3-c,d) Pyrene ND Isophorone ND Methylnaphthalene ND Methylnaphthalene ND Methylphenol ND /4-Methylphenol ND N-Nitroso-di-n-propylamine ND N-Nitrosodimethylamine ND N-Nitrosodiphenylamine ND Naphthalene ND Nitroaniline ND Nitroaniline ND Nitroaniline ND Nitrobenzene ND Nitrophenol ND Nitrophenol ND Pentachlorophenol ND Phenanthrene ND Phenol ND Pyrene ND Pyridine ND ,2,4-Trichlorobenzene ND ,4,6-Trichlorophenol ND ,4,5-Trichlorophenol ND Surrogate Rec. (%) Control Limits Qualifiers 2-Fluorobiphenyl RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 029

30 Page 19 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Units: mg/kg Project: PVPU - MAINT YARD Page 6 of 6 Surrogate Rec. (%) Control Limits Qualifiers 2-Fluorophenol Nitrobenzene-d p-terphenyl-d Phenol-d ,4,6-Tribromophenol RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 030

31 Page 20 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 5035 Method: EPA 8260B Units: ug/kg Project: PVPU - MAINT YARD Page 1 of 4 Client Sample Number Lab Sample Number Date/Time Collected E 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC/MS Q 11/02/15 11/04/15 02:19 Parameter Result RL DF Qualifiers Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L041 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 031

32 Page 21 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 5035 Method: EPA 8260B Units: ug/kg Project: PVPU - MAINT YARD Page 2 of 4 Parameter Result RL DF Qualifiers 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND Trichlorofluoromethane ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene Dibromofluoromethane ,2-Dichloroethane-d Toluene-d RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 032

33 Page 22 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 5035 Method: EPA 8260B Units: ug/kg Project: PVPU - MAINT YARD Page 3 of 4 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed Method Blank N/A Solid GC/MS Q 11/03/15 11/03/15 22:14 Parameter Result RL DF Qualifiers Acetone ND Benzene ND Bromobenzene ND Bromochloromethane ND Bromodichloromethane ND Bromoform ND Bromomethane ND Butanone ND n-butylbenzene ND sec-butylbenzene ND tert-butylbenzene ND Carbon Disulfide ND Carbon Tetrachloride ND Chlorobenzene ND Chloroethane ND Chloroform ND Chloromethane ND Chlorotoluene ND Chlorotoluene ND Dibromochloromethane ND ,2-Dibromo-3-Chloropropane ND ,2-Dibromoethane ND Dibromomethane ND ,2-Dichlorobenzene ND ,3-Dichlorobenzene ND ,4-Dichlorobenzene ND Dichlorodifluoromethane ND ,1-Dichloroethane ND ,2-Dichloroethane ND ,1-Dichloroethene ND c-1,2-dichloroethene ND t-1,2-dichloroethene ND ,2-Dichloropropane ND ,3-Dichloropropane ND ,2-Dichloropropane ND QC Batch ID L041 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 033

34 Page 23 of 42 Analytical Report Date Received: 11/02/15 Preparation: EPA 5035 Method: EPA 8260B Units: ug/kg Project: PVPU - MAINT YARD Page 4 of 4 Parameter Result RL DF Qualifiers 1,1-Dichloropropene ND c-1,3-dichloropropene ND t-1,3-dichloropropene ND Ethylbenzene ND Hexanone ND Isopropylbenzene ND p-isopropyltoluene ND Methylene Chloride ND Methyl-2-Pentanone ND Naphthalene ND n-propylbenzene ND Styrene ND ,1,1,2-Tetrachloroethane ND ,1,2,2-Tetrachloroethane ND Tetrachloroethene ND Toluene ND ,2,3-Trichlorobenzene ND ,2,4-Trichlorobenzene ND ,1,1-Trichloroethane ND ,1,2-Trichloroethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND Trichloroethene ND Trichlorofluoromethane ND ,2,3-Trichloropropane ND ,2,4-Trimethylbenzene ND ,3,5-Trimethylbenzene ND Vinyl Acetate ND Vinyl Chloride ND p/m-xylene ND o-xylene ND Methyl-t-Butyl Ether (MTBE) ND Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene Dibromofluoromethane ,2-Dichloroethane-d Toluene-d RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 034

35 Page 24 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3050B Method: EPA 6010B Project: PVPU - MAINT YARD Page 1 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid ICP /03/15 11/04/15 12: S Matrix Spike Solid ICP /03/15 11/04/15 12: S Matrix Spike Duplicate Solid ICP /03/15 11/04/15 12: S03 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Antimony ND Arsenic ND Barium Beryllium ND Cadmium ND Chromium Cobalt Copper Lead Molybdenum ND Nickel Selenium ND Silver ND Thallium ND Vanadium Zinc RPD: Relative Percent Difference. CL: Control Limits 035

36 Page 25 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 7471A Total Method: EPA 7471A Project: PVPU - MAINT YARD Page 2 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid Mercury 05 11/04/15 11/04/15 19: S Matrix Spike Solid Mercury 05 11/04/15 11/04/15 19: S Matrix Spike Duplicate Solid Mercury 05 11/04/15 11/04/15 19: S02 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Mercury ND RPD: Relative Percent Difference. CL: Control Limits 036

37 Page 26 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8081A Project: PVPU - MAINT YARD Page 3 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 44 11/03/15 11/03/15 17: S Matrix Spike Solid GC 44 11/03/15 11/03/15 16: S Matrix Spike Duplicate Solid GC 44 11/03/15 11/03/15 16: S03 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Aldrin ND Alpha-BHC ND Beta-BHC ND ,4'-DDD ND ,4'-DDE ND ,4'-DDT ND Delta-BHC ND Dieldrin ND Endosulfan I ND Endosulfan II ND Endosulfan Sulfate ND Endrin ND Endrin Aldehyde ND Endrin Ketone ND Gamma-BHC ND Heptachlor ND Heptachlor Epoxide ND Methoxychlor ND RPD: Relative Percent Difference. CL: Control Limits 037

38 Page 27 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8082 Project: PVPU - MAINT YARD Page 4 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 31 11/03/15 11/03/15 20: S Matrix Spike Solid GC 31 11/03/15 11/03/15 19: S Matrix Spike Duplicate Solid GC 31 11/03/15 11/03/15 20: S04 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Aroclor-1016 ND Aroclor-1260 ND RPD: Relative Percent Difference. CL: Control Limits 038

39 Page 28 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8141A Project: PVPU - MAINT YARD Page 5 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 26 11/04/15 11/05/15 15: S Matrix Spike Solid GC 26 11/04/15 11/05/15 12: S Matrix Spike Duplicate Solid GC 26 11/04/15 11/05/15 13: S01 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Azinphos Methyl ND Bolstar ND Chlorpyrifos ND Coumaphos ND Diazinon ND Disulfoton ND Ethoprop ND Fensulfothion ND Fenthion ND Merphos ND Methyl Parathion ND Phorate ND Ronnel ND Stirophos ND Tokuthion ND Trichloronate ND RPD: Relative Percent Difference. CL: Control Limits 039

40 Page 29 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 8151A Method: EPA 8151A Project: PVPU - MAINT YARD Page 6 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 40 11/05/15 11/06/15 21: S Matrix Spike Solid GC 40 11/05/15 11/06/15 18: S Matrix Spike Duplicate Solid GC 40 11/05/15 11/06/15 19: S20 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Dalapon ND Dicamba ND MCPP ND MCPA ND Dichlorprop ND ,4-D ND ,4,5-TP (Silvex) ND ,4,5-T ND ,4-DB ND Dinoseb ND RPD: Relative Percent Difference. CL: Control Limits 040

41 Page 30 of 42 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Project: PVPU - MAINT YARD Page 7 of 7 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC/MS SS 11/04/15 11/05/15 14: S Matrix Spike Solid GC/MS SS 11/04/15 11/05/15 13: S Matrix Spike Duplicate Solid GC/MS SS 11/04/15 11/05/15 14: S03 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Acenaphthene ND Acenaphthylene ND Butyl Benzyl Phthalate ND Chloro-3-Methylphenol ND Chlorophenol ND ,4-Dichlorobenzene ND Dimethyl Phthalate ND ,4-Dinitrotoluene ND Fluorene ND N-Nitroso-di-n-propylamine ND Naphthalene ND Nitrophenol ND Pentachlorophenol ND Phenol ND Pyrene ,2,4-Trichlorobenzene ND RPD: Relative Percent Difference. CL: Control Limits 041

42 Page 31 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3050B Method: EPA 6010B Project: PVPU - MAINT YARD Page 1 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid ICP /03/15 11/04/15 12: L03 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL ME CL Qualifiers Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc Total number of LCS compounds: 16 Total number of ME compounds: 0 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits 042

43 Page 32 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 7471A Total Method: EPA 7471A Project: PVPU - MAINT YARD Page 2 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid Mercury 05 11/04/15 11/04/15 19: L02 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers Mercury RPD: Relative Percent Difference. CL: Control Limits 043

44 Page 33 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8081A Project: PVPU - MAINT YARD Page 3 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 44 11/03/15 11/03/15 16: L03A Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL ME CL Qualifiers Aldrin Alpha-BHC Beta-BHC ,4'-DDD ,4'-DDE ,4'-DDT Delta-BHC Dieldrin Endosulfan I Endosulfan II Endosulfan Sulfate Endrin Endrin Aldehyde Gamma-BHC Heptachlor Heptachlor Epoxide Methoxychlor Total number of LCS compounds: 17 Total number of ME compounds: 0 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits 044

45 Page 34 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8082 Project: PVPU - MAINT YARD Page 4 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 31 11/03/15 11/03/15 19: L04A Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers Aroclor Aroclor RPD: Relative Percent Difference. CL: Control Limits 045

46 Page 35 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8141A Project: PVPU - MAINT YARD Page 5 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 26 11/04/15 11/05/15 01: L01 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL ME CL Qualifiers Azinphos Methyl Bolstar Chlorpyrifos Coumaphos Diazinon Disulfoton Ethoprop Fensulfothion Fenthion Merphos Methyl Parathion Phorate ME Ronnel Stirophos Tokuthion Trichloronate Total number of LCS compounds: 16 Total number of ME compounds: 1 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits 046

47 Page 36 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 8151A Method: EPA 8151A Project: PVPU - MAINT YARD Page 6 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 40 11/05/15 11/06/15 20: L20A Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers 2,4-D ,4,5-T ,4-DB RPD: Relative Percent Difference. CL: Control Limits 047

48 Page 37 of 42 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3545 Method: EPA 8270C Project: PVPU - MAINT YARD Page 7 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC/MS SS 11/04/15 11/05/15 12: L03 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL ME CL Qualifiers Acenaphthene Acenaphthylene Butyl Benzyl Phthalate Chloro-3-Methylphenol Chlorophenol ,4-Dichlorobenzene Dimethyl Phthalate ,4-Dinitrotoluene Fluorene N-Nitroso-di-n-propylamine Naphthalene Nitrophenol Pentachlorophenol Phenol Pyrene ,2,4-Trichlorobenzene Total number of LCS compounds: 16 Total number of ME compounds: 0 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits 048

49 Page 38 of 42 Quality Control - LCS/LCSD Date Received: 11/02/15 Preparation: EPA 5035 Method: EPA 8260B Project: PVPU - MAINT YARD Page 8 of 8 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS/LCSD Batch Number LCS Solid GC/MS Q 11/03/15 11/03/15 20: L LCSD Solid GC/MS Q 11/03/15 11/03/15 21: L041 Parameter Spike Added LCS Conc. LCS %Rec. LCSD Conc. LCSD %Rec. %Rec. CL ME CL RPD RPD CL Qualifiers Benzene Carbon Tetrachloride Chlorobenzene ,2-Dibromoethane ,2-Dichlorobenzene ,2-Dichloroethane ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride p/m-xylene o-xylene Methyl-t-Butyl Ether (MTBE) Total number of LCS compounds: 14 Total number of ME compounds: 0 Total number of ME compounds allowed: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits 049

50 Page 39 of 42 Sample Analysis Summary Report Page 1 of 1 Method Extraction Chemist ID Instrument Analytical Location EPA 6010B EPA 3050B 935 ICP EPA 7471A EPA 7471A Total 915 Mercury 05 1 EPA 8081A EPA GC 44 1 EPA 8082 EPA GC 31 1 EPA 8141A EPA GC 26 1 EPA 8151A EPA 8151A 944 GC 40 1 EPA 8260B EPA GC/MS Q 2 EPA 8270C EPA GC/MS SS 1 Location 1: 7440 Lincoln Way, Garden Grove, CA Location 2: 7445 Lampson Avenue, Garden Grove, CA

51 Page 40 of 42 Glossary of Terms and Qualifiers Page 1 of 1 Qualifiers Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution. Therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to suspected matrix interference. The associated LCS recovery was in control. 4 The MS/MSD RPD was out of control due to suspected matrix interference. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to suspected matrix interference. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B BU BV CI E ET HD HDH HDL J JA ME ND Q SG X Z Analyte was present in the associated method blank. Sample analyzed after holding time expired. Sample received after holding time expired. See case narrative. Concentration exceeds the calibration range. Sample was extracted past end of recommended max. holding time. The chromatographic pattern was inconsistent with the profile of the reference fuel standard. The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but heavier hydrocarbons were also present (or detected). The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but lighter hydrocarbons were also present (or detected). Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. Analyte positively identified but quantitation is an estimate. LCS Recovery Percentage is within Marginal Exceedance (ME) Control Limit range (+/- 4 SD from the mean). Parameter not detected at the indicated reporting limit. Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. The sample extract was subjected to Silica Gel treatment prior to analysis. % Recovery and/or RPD out-of-range. Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. Any parameter identified in 40CFR Part Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR Table II, footnote 4), is considered a "field" test and the reported results will be qualified as being received outside of the stated holding time unless received at the laboratory within 15 minutes of the collection time. A calculated total result (Example: Total Pesticides) is the summation of each component concentration and/or, if "J" flags are reported, estimated concentration. Component concentrations showing not detected (ND) are summed into the calculated total result as zero concentrations. 051

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54 Page 1 of 21 Supplemental Report 1 Additional requested analyses are reported as a stand-alone report. WORK ORDER NUMBER: AIR SOIL WATER MARINE CHEMISTRY Analytical Report For Client: Client Project Name: PVPU - MAINT YARD Attention: Dave Schack Approved for release on 11/17/2015 Vikas Patel Project Manager by: Eurofins Calscience, Inc. (Calscience) certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analyses, if any, is attached to this report. The results in this report are limited to the sample(s) tested and any reproduction thereof must be made in its entirety. The client or recipient of this report is specifically prohibited from making material changes to said report and, to the extent that such changes are made, Calscience is not responsible, legally or otherwise. The client or recipient agrees to indemnify Calscience for any defense to any litigation which may arise. 054

55 Page 2 of 21 Contents Client Project Name: PVPU - MAINT YARD Work Order Number: Work Order Narrative Client Sample Data EPA 7199/3060A Chromium VI (Solid) EPA 8015B (M) TPH Diesel (Solid) EPA 8015B (M) TPH Gasoline (Solid) Quality Control Sample Data MS/MSD LCS/LCSD Sample Analysis Summary Glossary of Terms and Qualifiers Chain-of-Custody/Sample Receipt Form

56 Page 3 of 21 Work Order Narrative Page 1 of 1 Condition Upon Receipt: Samples were received under Chain-of-Custody (COC) on 11/02/15. They were assigned to Work Order Unless otherwise noted on the Sample Receiving forms all samples were received in good condition and within the recommended EPA temperature criteria for the methods noted on the COC. The COC and Sample Receiving Documents are integral elements of the analytical report and are presented at the back of the report. Holding Times: All samples were analyzed within prescribed holding times (HT) and/or in accordance with the Calscience Sample Acceptance Policy unless otherwise noted in the analytical report and/or comprehensive case narrative, if required. Any parameter identified in 40CFR Part Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR Table II, footnote 4), is considered a "field" test and the reported results will be qualified as being received outside of the stated holding time unless received at the laboratory within 15 minutes of the collection time. Quality Control: All quality control parameters (QC) were within established control limits except where noted in the QC summary forms or described further within this report. Subcontractor Information: Unless otherwise noted below (or on the subcontract form), no samples were subcontracted. Additional Comments: Air - Sorbent-extracted air methods (EPA TO-4A, EPA TO-10, EPA TO-13A, EPA TO-17): Analytical results are converted from mass/sample basis to mass/volume basis using client-supplied air volumes. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are always reported on a wet weight basis. 056

57 Page 4 of 21 Analytical Report Client Sample Number Lab Sample Number Date/Time Collected C 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid IC 11 11/16/15 11/16/15 20:06 Parameter Result RL DF Qualifiers Chromium, Hexavalent ND Date Received: 11/02/15 Preparation: EPA 3060A Method: EPA 7199 Project: PVPU - MAINT YARD Page 1 of 1 Units: ug/kg QC Batch ID L01P Method Blank N/A Solid IC 11 11/16/15 11/16/15 19:37 Parameter Result RL DF Qualifiers Chromium, Hexavalent ND L01P RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 057

58 Page 5 of 21 Analytical Report Client Sample Number Lab Sample Number Date/Time Collected A 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC 47 11/16/15 11/17/15 04:30 Parameter Result RL DF Qualifiers TPH as Diesel ND Date Received: 11/02/15 Preparation: Method: EPA 3550B EPA 8015B (M) Project: PVPU - MAINT YARD Page 1 of 1 Units: mg/kg QC Batch ID B01 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane Method Blank N/A Solid GC 47 11/16/15 11/16/15 14:06 Parameter Result RL DF Qualifiers TPH as Diesel ND B01 Surrogate Rec. (%) Control Limits Qualifiers n-octacosane RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 058

59 Page 6 of 21 Analytical Report Client Sample Number Lab Sample Number Date/Time Collected B 11/02/15 13:50 Matrix Instrument Date Prepared Date/Time Analyzed Solid GC 1 11/16/15 11/16/15 20:30 Parameter Result RL DF Qualifiers TPH as Gasoline ND Date Received: 11/02/15 Preparation: Method: EPA 5030C EPA 8015B (M) Project: PVPU - MAINT YARD Page 1 of 1 Units: mg/kg QC Batch ID L034 Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene - FID Method Blank N/A Solid GC 1 11/16/15 11/16/15 19:19 Parameter Result RL DF Qualifiers TPH as Gasoline ND L034 Surrogate Rec. (%) Control Limits Qualifiers 1,4-Bromofluorobenzene - FID RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 059

60 Page 7 of 21 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3060A Method: EPA 7199 Project: PVPU - MAINT YARD Page 1 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid IC 11 11/16/15 11/16/15 20: S01P Matrix Spike Solid IC 11 11/16/15 11/16/15 20: S01P Matrix Spike Duplicate Solid IC 11 11/16/15 11/16/15 20: S01P Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers Chromium, Hexavalent ND RPD: Relative Percent Difference. CL: Control Limits 060

61 Page 8 of 21 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 3550B Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 2 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 47 11/16/15 11/16/15 15: S Matrix Spike Solid GC 47 11/16/15 11/16/15 14: S Matrix Spike Duplicate Solid GC 47 11/16/15 11/16/15 15: S01 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers TPH as Diesel RPD: Relative Percent Difference. CL: Control Limits 061

62 Page 9 of 21 Spike/Spike Duplicate - Surrogate Date Received: 11/02/15 Preparation: EPA 3550B Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 3 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 47 11/16/15 11/16/15 15: S Matrix Spike Solid GC 47 11/16/15 11/16/15 14: S Matrix Spike Duplicate Solid GC 47 11/16/15 11/16/15 15: S01 Parameter Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL Qualifiers n-octacosane RPD: Relative Percent Difference. CL: Control Limits 062

63 Page 10 of 21 Quality Control - Spike/Spike Duplicate Date Received: 11/02/15 Preparation: EPA 5030C Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 4 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 1 11/06/15 11/16/15 21: S Matrix Spike Solid GC 1 11/06/15 11/16/15 22: S Matrix Spike Duplicate Solid GC 1 11/06/15 11/16/15 22: S018 Parameter Sample Conc. Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL RPD RPD CL Qualifiers TPH as Gasoline ND RPD: Relative Percent Difference. CL: Control Limits 063

64 Page 11 of 21 Spike/Spike Duplicate - Surrogate Date Received: 11/02/15 Preparation: EPA 5030C Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 5 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number Sample Solid GC 1 11/06/15 11/16/15 21: S Matrix Spike Solid GC 1 11/06/15 11/16/15 22: S Matrix Spike Duplicate Solid GC 1 11/06/15 11/16/15 22: S018 Parameter Spike Added MS Conc. MS %Rec. MSD Conc. MSD %Rec. %Rec. CL Qualifiers 1,4-Bromofluorobenzene - FID RPD: Relative Percent Difference. CL: Control Limits 064

65 Page 12 of 21 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3060A Method: EPA 7199 Project: PVPU - MAINT YARD Page 1 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid IC 11 11/16/15 11/16/15 19: L01P Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers Chromium, Hexavalent RPD: Relative Percent Difference. CL: Control Limits 065

66 Page 13 of 21 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 3550B Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 2 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 47 11/16/15 11/16/15 14: B01 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers TPH as Diesel RPD: Relative Percent Difference. CL: Control Limits 066

67 Page 14 of 21 LCS Only - Surrogate Date Received: 11/02/15 Preparation: EPA 3550B Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 3 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 47 11/16/15 11/16/15 14: B01 Parameter Spike Added LCS Conc. LCS %Rec. %Rec. CL Qualifiers n-octacosane RPD: Relative Percent Difference. CL: Control Limits 067

68 Page 15 of 21 Quality Control - LCS Date Received: 11/02/15 Preparation: EPA 5030C Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 4 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 1 11/16/15 11/16/15 18: L034 Parameter Spike Added Conc. Recovered LCS %Rec. %Rec. CL Qualifiers TPH as Gasoline RPD: Relative Percent Difference. CL: Control Limits 068

69 Page 16 of 21 LCS Only - Surrogate Date Received: 11/02/15 Preparation: EPA 5030C Method: EPA 8015B (M) Project: PVPU - MAINT YARD Page 5 of 5 Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed LCS Batch Number LCS Solid GC 1 11/16/15 11/16/15 18: L034 Parameter Spike Added LCS Conc. LCS %Rec. %Rec. CL Qualifiers 1,4-Bromofluorobenzene - FID RPD: Relative Percent Difference. CL: Control Limits 069

70 Page 17 of 21 Sample Analysis Summary Report Page 1 of 1 Method Extraction Chemist ID Instrument Analytical Location EPA 7199 EPA 3060A 1027 IC 11 1 EPA 8015B (M) EPA 3550B 974 GC 47 1 EPA 8015B (M) EPA 5030C 902 GC 1 2 Location 1: 7440 Lincoln Way, Garden Grove, CA Location 2: 7445 Lampson Avenue, Garden Grove, CA

71 Page 18 of 21 Glossary of Terms and Qualifiers Page 1 of 1 Qualifiers Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution. Therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to suspected matrix interference. The associated LCS recovery was in control. 4 The MS/MSD RPD was out of control due to suspected matrix interference. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to suspected matrix interference. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B BU BV CI E ET HD HDH HDL J JA ME ND Q SG X Z Analyte was present in the associated method blank. Sample analyzed after holding time expired. Sample received after holding time expired. See case narrative. Concentration exceeds the calibration range. Sample was extracted past end of recommended max. holding time. The chromatographic pattern was inconsistent with the profile of the reference fuel standard. The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but heavier hydrocarbons were also present (or detected). The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but lighter hydrocarbons were also present (or detected). Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. Analyte positively identified but quantitation is an estimate. LCS Recovery Percentage is within Marginal Exceedance (ME) Control Limit range (+/- 4 SD from the mean). Parameter not detected at the indicated reporting limit. Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. The sample extract was subjected to Silica Gel treatment prior to analysis. % Recovery and/or RPD out-of-range. Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. Any parameter identified in 40CFR Part Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR Table II, footnote 4), is considered a "field" test and the reported results will be qualified as being received outside of the stated holding time unless received at the laboratory within 15 minutes of the collection time. A calculated total result (Example: Total Pesticides) is the summation of each component concentration and/or, if "J" flags are reported, estimated concentration. Component concentrations showing not detected (ND) are summed into the calculated total result as zero concentrations. 071

72 Page 19 of 21 Erick Ovalle Subject: Attachments: Importance: FW: PVPU - MAINT YARD / ECI Final PDF and EDD Files pdf; xls High From: Steve Morrill [mailto:steve.morrill@altaenviron.com] Sent: Monday, November 16, :58 PM To: Erick Ovalle Cc: David Schack Subject: FW: PVPU - MAINT YARD / ECI Final PDF and EDD Files. Importance: High Hello Erick: Can you conduct TPH full scan (8015M) and hexavalent chromium (7199) on the sample referenced in the attached lab report. If so, we need 24 hour TAT so we receive results tomorrow (Tuesday). Thank you, Steve Morrill Notify us here to report this as spam

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