May 29, Dear Ms. Cook:

Transcription

1 Frederick F Flint Certified Hydrogeologist Environmental Remediation 3401 Crow Canyon Rd. San Ramon, CA fxf5@pge.com May 29, 2009 Ms. Barbara Cook, P.E., Branch Chief Attn Ms. Janet Naito California Department of Toxic Substances Control Site Mitigation Program 700 Heinz Ave Suite 200 Berkeley, CA Re: Semi-Annual Groundwater Monitoring Report (November 2008 through April 2009), Hunters Point Power Plant, 151 Jennings Street, San Francisco, California Dear Ms. Cook: TRC has prepared the enclosed semi-annual groundwater monitoring report of the Hunters Point Power Plant during the first and second quarters of This report contains information regarding gauging of all site wells in January 2009 and gauging and sampling of the wells in April In the report, TRC has made several recommendations for your consideration. Please call me at (925) if you have any questions or concerns. Frederick F. Flint, P.G. Project Manager FFF: ngc Enclosure

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4 TABLE OF CONTENTS 1.0 INTRODUCTION SAMPLING PROCEDURES GROUNDWATER ELEVATIONS AND GRADIENTS GROUNDWATER ANALYTICAL RESULTS AND TRENDS Field-Measured Physical and Chemical Parameters TPH-g, TPH-d, TPH-mo, and TPH- Bunker C Volatile Organic Compounds Metals Polycyclic Aromatic Hydrocarbons SUMMARY AND RECOMMENDATIONS 3 TABLES 1 Semi-Annual Sampling and Analysis Plan 2 Groundwater Elevations and Product Thickness 3 Summary of Field Physical and Chemical Groundwater Parameters 4 Total Petroleum Hydrocarbons in Groundwater 5 Volatile Organic Compounds in Groundwater 6 Metals in Groundwater 7 Polycyclic Aromatic Hydrocarbons in Groundwater FIGURES 1 Vicinity Map 2 Groundwater Elevations and Product Thickness 3 Historical TPH Trends in EW-1 4 Historical TPH Trends in EW-2 5 Historical TPH Trends in EW-3 6 Historical TPH Trends in MW-1 7 Historical TPH Trends in MW-2 APPENDICES A Standard Operating Procedures B Field Groundwater Sampling Records C Copies of Laboratory Analytical Reports i

5 1.0 INTRODUCTION This report presents the results of the groundwater monitoring event conducted at the Pacific Gas and Electric (PG&E) Hunters Point Power Plant ( HPPP or Site ) located at 1000 Evans Avenue, San Francisco, California, for the November 1, 2008, through April 30, 2009 semiannual period ( current period ). PG&E entered into a voluntary cleanup agreement (VCA) with the Department of Toxic Substances Control (DTSC) in February 2007 (docket number HAS-VCA 06/07-144; amended July 2008). The Site location is shown on Figure 1. The current monitoring program at HPPP consists of semi-annual sampling of 20 groundwater wells and recording water quality measurements for temperature, ph, conductivity, dissolved oxygen (DO), oxygen reduction potential (ORP), and turbidity, as well as quarterly gauging. Groundwater samples were analyzed for one or more of the following constituents: total petroleum hydrocarbons as gasoline (TPH-g), total petroleum hydrocarbons as diesel (TPH-d), total petroleum hydrocarbons as motor oil (TPH-mo), total petroleum hydrocarbons as Bunker C (TPH-Bunker C), metals, polycyclic aromatic hydrocarbons (PAHs), hexavalent chromium, and volatile organic compounds (VOCs). The sampling and analysis plan is detailed in Table SAMPLING PROCEDURES Groundwater samples were collected from 15 of the 20 groundwater wells at the Site (Figure 2) between April 22, 2009, and April 24, Wells MW-8 and MW-10 were damaged during demolition activities at the site related to the removal of subsurface components. The casing of each well was accidentally cracked approximately two feet below grade. The well casings have been repaired and extended several feet above grade to improve visibility and prevent future damage. The wells will be assessed as to the extent of damage (e.g., possible presence of downhole sediment or construction debris), and this information will be provided to DTSC when obtained. Additionally, MW-16 was located underneath a large concrete stockpile and was not accessible. The well will be sampled prior to the next semi-annual event after a portion of the stockpile is removed. MW-4 and MW-13 were not sampled this current due to the presence of free product in the wells. Wells were purged using a peristaltic pump, with a flow-through cell installed in line with the discharge tubing, in accordance with TRC s standard operating procedures (SOP) for low-flow sampling (Appendix A), and metals were field filtered with a 45-micron filter. Samples were collected from each well when measurements of field parameters stabilized. Groundwater was considered stable when: The change in temperature between consecutive readings was less than +/- 0.5 degrees Celsius (C) The change in ph between consecutive readings was less than +/- 0.1 The change in conductance between consecutive readings was less than +/- 3 percent The change in dissolved oxygen between consecutive readings was less than 10 percent Samples were appropriately labeled and stored in ice chests to maintain them at or below 4- degrees C. Groundwater samples were submitted under proper chain-of-custody protocol to Calscience Laboratories, a State of California certified laboratory, with a 5-day turnaround time. 1

6 All samples were tested within their respective holding times. Field groundwater sampling records are attached as Appendix B. One duplicate sample was collected, from EW-1, to assess the precision of analytical results. The duplicate sample was analyzed for the same constituents as the primary EW-1 sample. The results of the duplicate and primary samples were consistent. Equipment blanks were taken at the end of each day to serve as a quality control check on equipment contamination or cross-contamination between wells. Equipment blanks were analyzed for the same constituents listed on the COC for that particular day. Blanks were collected immediately following equipment decontamination by running DI water through the entire equipment setup (pump, discharge tube, etc.), just as a sample from a well would be collected. Equipment blank samples EB-02 and EB-03, taken on April 23 and 24, respectively, had relatively low detections of barium, copper, and zinc, and EB-01, taken on April 22, had relatively low detections of zinc. All other analytes were non-detect for the equipment blanks. Trip blanks, included with each cooler containing VOC analysis, were non-detect for VOCs. 3.0 GROUNDWATER ELEVATIONS AND GRADIENTS Groundwater and product gauging of 18 wells and one piezometer was conducted during the current period. Groundwater elevations were calculated using the depth-to-water measurements in the monitoring wells and the surveyed elevations of the measuring points from the top of the well casing. Measuring point elevations are referenced to the National Geodetic Vertical Datum of 1929 (NVGD). The measuring point elevation, depth-togroundwater, depth-to-product (if present), corrected depth-to-water, and groundwater elevation data are given in Table 2. Groundwater flow at the site is generally to the eastnortheast, towards the bay, as shown in Figure GROUNDWATER ANALYTICAL RESULTS AND TRENDS 4.1 Field-Measured Physical and Chemical Parameters Field measurements for temperature, ph, specific conductance, DO, ORP, and turbidity are shown in Table 3. The data shown were obtained at the end of well purging, after measurements stabilized. Purging data, including groundwater depths at the start and end of the purging period, volume of groundwater in the well casing, volume purged, and the pump intake depth, are also presented in Table 3. The DO has increased from historical concentrations in some wells, which may be related to wet weather groundwater recharge. 4.2 TPH-g, TPH-d, TPH-mo, and TPH- Bunker C TPH results are presented in Table 4. TPH concentrations in the hydrocarbon plume areas have generally declined in pumping well EW-2 and monitoring well EW-3, and have remained stable in MW-1 and MW-2 since sampling began in September 2007, with detections occurring at their lowest historical levels during the current period (Figures 3 through 7). The concentration trends for EW-1, the monitoring well with the highest historical TPH detections, have been generally stable with fluctuations occurring seasonally. Concentrations of TPH in MW-3, MW-5, MW-12, and MW-14 had been gradually increasing; however, during the current sampling event, laboratory results were non-detect for TPH in these wells. The remaining monitoring wells have been generally stable and were all non-detect 2

7 during the April 2009 sampling. TPH-g was analyzed for the first time this period, and was detected in plume area wells EW-1, EW-2, and EW Volatile Organic Compounds Results for VOCs are presented in Table 5. For the ease of review, only compounds detected currently or historically are shown. VOC concentrations of n-butyl-benzene, sec-butyl-benzene, 2-hexanone, isopropylbenzene, p-isopropyltoluene, n-propylbenzene, 1,2,4 trimethylbenzene, 1,3,5 trimethylbenzene, and/or xylenes were detected at the site in wells EW-1 and EW-3 during the current period. VOCs have been historically detected at low levels in these wells, and in wells MW-2, MW-3, MW-4, MW-8, and MW-13 in past sampling events. VOC concentrations in wells with historical detections have all decreased or remained stable throughout the duration of the semi-annual monitoring program. 4.4 Metals Results for metals are presented in Table 6. Relatively low concentrations of various metals were present in all wells during the most recent sampling event and have been detected in all monitoring wells at the site since the sampling program began in September Concentration trends for metals over the course of the semi-annual program have remained stable. 4.5 Polycyclic Aromatic Hydrocarbons Results for PAHs are presented in Table 7. PAHs were detected in EW-1, EW-2, EW-3, and MW-14 during the current period, ranging from 0.24 of phenanthrene (MW-14) to 17 of naphthalene (EW-1). PAHs have also been historically detected in wells MW-2, MW-4, MW- 11, MW-12, and MW-13. Concentrations of PAHs site-wide have either declined to levels below laboratory detection limits, as in MW-2 and MW-11, or remained stable over past sampling events. 5.0 SUMMARY AND RECOMMENDATIONS Groundwater flow is towards the east-northeast, towards the bay, within the monitoring network. Separate-phase hydrocarbon product is present in MW-4, MW-13, and PZ-05, consistent with the known plume in the area. TPH concentrations within the lagoon release response wells (EW-1, EW-2, EW-3, MW- 1, and MW-2) are generally declining or stable. Low concentrations of VOCs are present in wells MW-2, MW-3, MW-4, MW-8, and MW- 13. VOC concentrations in these wells have all decreased or remained stable since the start of the semi-annual monitoring program. Low concentrations of various metals are present in all wells. Concentration trends for metals over the course of the semi-annual program have remained stable and at low levels for all metal analytes. 3

8 Concentrations of PAHs site-wide have either declined to levels below laboratory detection limits or remained stable over past sampling events. It is recommended that: Quarterly lagoon monitoring for of EW-1, EW-2, EW-3, MW-1, and MW-2 be reduced to semi-annual, based on stable or decreasing TPH concentrations in these wells. Weekly gauging of wells EW-1, EW-2, EW-3, MW-1, and MW-2 be reduced to quarterly, based on stable levels of groundwater and reduced to stable TPH concentrations. The Quarterly Operations, Maintenance, and Monitoring (OM&M) Report associated with the above activities be discontinued and incorporated into the Semi-Annual Monitoring Report going forward, including lagoon release OM&M activities and extraction data for EW-2. 4

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10 TABLE 1 SEMI-ANNUAL SAMPLING AND ANALYSIS PLAN PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA CAM-17 Metals (field filtered) Hexavalent Chromium (field filtered) Well TPH- Gasoline TPH- Diesel TPH- Motor Oil TPH- Bunker C PAHs VOCs EW-1 1 X X X X X X X X EW-2 1 X X X X X X X X EW-3 1 X X X X X X X X HPW-1 X X X MW-1 1 X X X X X X X X MW-2 1 X X X X X X X X MW-3 X X X MW-4 X X X X X X X X MW-5 X X X MW-6 X X X MW-7 X X X MW-8 X X X X MW-9 X X X MW-10 X X X X X MW-11 X X X X MW-12 X X X X MW-13 X X X X X X X X MW-14 X X X X X X X X MW-15 X X X X MW-16 X X X Notes 1 - Well also gauged weekly and sampled quarterly as part of the lagoon release monitoring plan. 2 - Product has been historically detected. Well will not be sampled if product is present during the time of the sampling event. All groundwater wells are gauged quarterly. Piezometer PZ-05 is also gauged quarterly. TPH - Total petroleum hydrocarbons PAHs - Polycyclic aromatic hydrocarbons VOCs - Volatile organic compounds Page 1 of 1

11 TABLE 2 GROUNDWATER ELEVATIONS AND PRODUCT THICKNESS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Measuring Point Elevation (feet) Depth to Water 1 (feet) Depth to Product (feet) Product Thickness (feet) Corrected Depth to Water 2 (feet) Groundwater Elevation (feet above msl) Well MW-1 10/1/ /7/ /26/ /25/ /28/ /23/ MW-2 10/1/ /7/ /26/ /25/ /28/ /23/ MW-3 10/5/ /7/ /26/ /25/ /28/ /22/ MW-4 10/2/ /7/ /26/ /25/ /28/ /23/ MW-5 9/26/ /7/ /26/ /25/ /28/ /22/ MW-6 9/27/ /7/ /26/ /25/ /28/ /22/ Page 1 of 4

12 TABLE 2 GROUNDWATER ELEVATIONS AND PRODUCT THICKNESS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Well Measuring Point Elevation (feet) Depth to Water 1 (feet) Depth to Product (feet) Product Thickness (feet) Corrected Depth to Water 2 (feet) Groundwater Elevation (feet above msl) MW-7 10/1/ /7/ /26/ /25/ /28/ /22/ MW /2/ MW-9 10/3/ /7/ /26/ /25/ /28/ /22/ MW /3/ /7/ /26/ /28/ MW-11 10/3/ /7/ /26/ /25/ /28/ /24/ MW-12 9/27/ /7/ /26/ /25/ /28/ /24/ MW-13 10/2/ /7/ /26/ /25/ /28/ /23/ Page 2 of 4

13 TABLE 2 GROUNDWATER ELEVATIONS AND PRODUCT THICKNESS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Well Measuring Point Elevation (feet) Depth to Water 1 (feet) Depth to Product (feet) Product Thickness (feet) Corrected Depth to Water 2 (feet) Groundwater Elevation (feet above msl) MW-14 1/2/ /7/ /26/ /25/ /28/ /23/ MW-15 1/2/ /7/ /26/ /25/ /28/ /23/ MW-16 1/3/ /7/ /26/ /28/ /22/ EW-1 2/7/ /26/ /25/ /28/ /23/ EW-2 5 4/23/ EW-3 10/1/ /7/ /26/ /25/ /28/ /23/ Page 3 of 4

14 TABLE 2 GROUNDWATER ELEVATIONS AND PRODUCT THICKNESS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Well Measuring Point Elevation (feet) Depth to Water 1 (feet) Depth to Product (feet) Product Thickness (feet) Corrected Depth to Water 2 (feet) Groundwater Elevation (feet above msl) HPW-01 10/1/ /4/ /7/ /26/ /25/ /28/ /22/ PZ-05 2/7/ /26/ /25/ /25/ /6/ /28/ /23/ Notes: 1 - Depth to water is reported as feet below top of casing. 2 - Groundwater elevations corrected for the presence of measurable product using an assumed specific gravity of Wells were destroyed during demolition activities 4 - Well was obstructed or could not be accessed. 5 - Extraction well for lagoon release response measures. Groundwater levels reflect pumping. msl = Mean Sea level, as referenced to the National Geodetic Vertical Datum of 1929 (NGVD29). Page 4 of 4

15 TABLE 3 SUMMARY OF FIELD PHYSICAL AND CHEMICAL GROUNDWATER PARAMETERS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Monitoring Well Screen Interval (ft bmp) Depth to Water at Start of Purge (ft bmp) Depth to Water at End of Purge (ft bmp) Depth to Product (ft bmp) Product Thickness (feet) Casing Volume (gallons) Purged Volume (gallons) Pump Intake Depth (ft bmp) Temperature ( o C) ph Specific Conductance (μs/cm) MW /1/ /25/ /23/ MW /1/ /21/ /28/ /23/ MW /5/ /25/ /6/ /22/ MW /2/ /25/ /5/ /23/ MW /26/ /25/ /21/ /22/ MW /27/ /25/ /6/ /22/ MW /2/ /25/ /6/ /22/ DO (mg/l) ORP (mv) Turbidity (NTU) Page 1 of 3

16 TABLE 3 SUMMARY OF FIELD PHYSICAL AND CHEMICAL GROUNDWATER PARAMETERS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Monitoring Well Screen Interval (ft bmp) Depth to Water at Start of Purge (ft bmp) Depth to Water at End of Purge (ft bmp) Depth to Product (ft bmp) Product Thickness (feet) Casing Volume (gallons) Purged Volume (gallons) Pump Intake Depth (ft bmp) Temperature ( o C) ph Specific Conductance (μs/cm) DO (mg/l) ORP (mv) Turbidity (NTU) MW /2/ MW /3/ /25/ /21/ /22/ MW /3/ MW /3/ /25/ /21/ /24/ MW /27/ /25/ /21/ /24/ MW /2/ /25/ /5/ /23/ MW /2/ /25/ /6/ /23/ MW /2/ /25/ /6/ /23/ Page 2 of 3

17 TABLE 3 SUMMARY OF FIELD PHYSICAL AND CHEMICAL GROUNDWATER PARAMETERS PACIFIC GAS AND ELECTRIC COMPANY HUNTERS POINT POWER PLANT SAN FRANCISCO, CALIFORNIA Monitoring Well Screen Interval (ft bmp) Depth to Water at Start of Purge (ft bmp) Depth to Water at End of Purge (ft bmp) Depth to Product (ft bmp) Product Thickness (feet) Casing Volume (gallons) Purged Volume (gallons) Pump Intake Depth (ft bmp) Temperature ( o C) ph Specific Conductance (μs/cm) MW /3/ /22/ EW /1/ /25/ /6/ /23/ EW /23/ EW /1/ /25/ /21/ /23/ HPW-01 Uknown 10/4/ Uknown 4/25/ Uknown 10/21/ Uknown 4/22/ DO (mg/l) ORP (mv) Turbidity (NTU) NOTES: 1 - No water quality was recorded due to presence of product 2 -Well was destroyed during demolition activities 3 - Well was obstructed and could not be accessed ft bmp feet below measuring point (top of PVC casing) ORP oxidation reduction potential C degrees Celsius mv millivolts (relative to a hydrogen reference electrode) µs/cm microsiemens per centimeter DO dissolved oxygen mg/l milligrams per liter NTU nephelometric turbidity units not measured or data not available Page 3 of 3

18 TABLE 4 TOTAL PETROLEUM HYDROCARBONS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA SAMPLE ID SAMPLE DATE TPH AS GASOLINE TPH AS DIESEL TPH AS MOTOR OIL TPH AS BUNKER C () () () () MW-1 2/1/ Y < Y 10/1/ <50 <250-4/29/ <50 <500 <500 10/21/ <500 <500 4/23/2009 <50 <50 <250 <250 MW-2 2/1/ <50 <300 <300 10/1/ <250-4/29/ <50 <500 <500 10/21/ <500 <500 4/23/2009 <50 <50 <250 <250 MW-3 10/5/ <250-4/25/ <500-11/6/2008 <50 3,100 X 1,700 X 3,500 X 4/22/ <50 <250 - MW /2/2007-2, MW-5 9/26/ <250-4/25/ <500-10/21/2008-1,800 X 920 X 2,000 X 4/22/ <50 <250 - MW-6 9/27/2007 <50 <50 <250-4/25/ <50 <500-11/6/ <500 <500 4/22/ <50 <250 - MW-7 10/2/ <50 <250-4/28/ <500-11/6/ <500 <500 4/22/ <50 <250 - MW /2/ <50 <250 - MW-9 10/3/ <50 <250-4/25/ <500-10/21/ <500 <500 4/22/ <50 <250 - MW /3/ <250-1/3/ <250 - MW-11 10/3/ <50 <250-4/28/ <500-10/21/ <500 <500 4/24/ <50 <250 - Page 1 of 3

19 TABLE 4 TOTAL PETROLEUM HYDROCARBONS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA SAMPLE ID SAMPLE DATE TPH AS GASOLINE TPH AS DIESEL TPH AS MOTOR OIL TPH AS BUNKER C () () () () MW-12 9/27/2007 <50 79 <250-4/28/ <500-10/21/2008-2,800 X 740 X 2,900 X 4/24/ <50 <250 - MW /2/ ,000 <25,000 - MW-14 1/2/ <250-1/2/ <250-4/29/2008 < < /6/2008 <50 1, ,300 4/23/2009 <50 <50 <250 <250 MW-15 1/2/ <50 <250-1/2/ <50 <250-4/29/2008 <50 52 <500 <500 11/6/2008 <50 52 <500 <500 4/23/ <50 <250 - MW /3/ <50 - <250 1/3/ <50 - <250 EW-1 1/4/2007-2,000 L,Y <300 3,000 L,Y 10/1/ <250-4/28/2008-3,000,000 <500,000 3,200,000 11/6/ ,000 X 620 X 11,000 X 4/23/2009 1, < /23/ , <250 <250 EW-2 1/4/2007-2,900 L,Y <300 5,700 L,Y 2/1/2007-6,800 H,Y 360 L,Y 14,000 L 4/23/ <50 < EW-3 1/4/2007-3,300 L,Y <300 4,300 L,Y 10/1/ <250-4/29/ < /21/ < /23/ < HPW-1 1/14/ < /4/ <50 <250-4/22/ <50 <250 - Notes: 1 - Duplicate Sample 2 - Product has been historically detected. Well was not sampled if product present during the time of the sampling event. 3 -Wells were destroyed during demolition activities 4 - Well located underneath large concrete pile during gauging and sampling events. H = Heavier hydrocarbons contributed to the quantitation. L = Lighter hydrocarbons contributed to the quantitation. X = Surrogate exceeds the control limits. Y = Sample exhibits chromatographic pattern which does not resemble standard. Bold indicates analyte above laboratory detection limits Page 2 of 3

20 TABLE 4 TOTAL PETROLEUM HYDROCARBONS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA SAMPLE ID SAMPLE DATE <# = Below reporting limit - = Not analyzed TPH = Total petroleum hydrocarbons TPH AS GASOLINE TPH AS DIESEL TPH AS MOTOR OIL TPH AS BUNKER C () () () () Page 3 of 3

21 TABLE 5 VOLATILE ORGANIC COMPOUNDS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA All units in Sample Benzene N- Butyl- Benzene Sec- Butyl- Benzene Chloro- Benzene Ethylbenzene Iso- Propyl- Benzene p- Isopropyltoluene Naphthalene MW-1 10/1/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/23/2009 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-2 10/1/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 < <1.0 <1.0 <1.0 4/23/2009 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-3 10/5/ <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 < /25/ <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 < /6/ <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 < MW /2/ < MW-5 9/26/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 < /25/2008 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 < /21/2008 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 < MW-6 10/27/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-7 10/2/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW /2/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-9 10/3/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW /3/2008 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1/3/ <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-11 10/3/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW-12 9/27/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW /2/ < < < ,200 1, MW-14 1/2/2008 <0.50 <1.0 < <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1/2/ <0.50 <1.0 < <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/23/2009 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 n- Propylbenzene 1,2,4- Trimethylbenzene 1,3,5- Trimethylbenzene p/m- Xylene 0- Xylene Methyltertbutylether Page 1 of 2

22 TABLE 5 VOLATILE ORGANIC COMPOUNDS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA All units in Sample Benzene N- Butyl- Benzene Sec- Butyl- Benzene Chloro- Benzene Ethylbenzene Iso- Propyl- Benzene p- Isopropyltoluene Naphthalene MW-15 1/2/2008 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 n- Propylbenzene 1,2,4- Trimethylbenzene 1,3,5- Trimethylbenzene p/m- Xylene 0- Xylene 1/2/ <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 MW /3/2008 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1/3/ <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 EW-1 10/1/2007 <0.50 < < <1.0 4/23/2009 <1.0 <2.0 <2.0 < < <2.0 4/23/ <1.0 <2.0 <2.0 < < < <2.0 EW-2 4/23/2009 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 EW-3 10/1/2007 < < < <1.0 4/23/2009 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 3 <1.0 <1.0 <1.0 <1.0 HPW-1 1/14/1997 <5.00 <5.00 <5.00 <1.0 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 < /4/2007 <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Methyltertbutylether Notes: 1 - Duplicate Sample 2 - Product has been historically detected. Well was not sampled if product present during the time of the sampling event. 3 -Wells were destroyed during demolition activities 4 - Well located underneath large concrete pile during gauging and sampling events. Only chemicals detected historically or currently are shown. Bold indicates analyte above laboratory detection limits <# = Below reporting limit - = Not analyzed Page 2 of 2

23 All units in mg/l Sample Antimony Arsenic Barium Beryllium Cadmium Chromium TABLE 6 METALS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA Hexavalent Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc MW-1 10/1/2007 < <0.001 < <0.001 <0.001 <0.001 < < <0.01 <0.01 <0.01 <0.01 <0.05 4/29/2008 < <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /21/2008 < <0.005 <0.002 < <0.005 <0.005 <0.005 < < <0.005 <0.005 <0.005 <0.005 <0.01 4/23/2009 < <0.001 <0.001 <0.001 < < <0.001 < < <0.001 <0.001 < MW-2 10/1/2007 < F,R F,R <0.001 < F,R < F,R F,R <0.001 < F,R F,R F,R <0.001 <0.001 < F,R 4/29/2008 <0.005 < <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /1/2008 <0.005 < <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 4/23/2009 < <0.001 < < <0.001 < <0.001 < MW-3 10/5/ <0.001 < < <0.001 < <0.001 < F,R 4/25/2008 <0.005 < <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /6/2008 <0.005 < <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.001 <0.005 <0.005 <0.10 4/22/2009 < <0.001 <0.001 < <0.001 < <0.001 <0.001 < MW /2/2007 < <0.001 < F,R < < <0.001 <0.001 < MW-5 9/26/2007 < <0.001 < <0.001 < F,R < <0.001 < < /25/2008 <0.005 < <0.005 <0.002 < <0.005 <0.005 <0.005 < < <0.005 <0.005 <0.005 <0.005 < /21/2008 <0.005 < <0.005 <0.002 <0.005 <0.01 <0.005 <0.005 <0.005 < < <0.005 <0.005 <0.01 4/22/2009 < <0.001 <0.001 < <0.001 < <0.001 <0.001 < MW-6 9/27/2008 < <0.005 < F < <0.005 <0.005 F <0.005 < < F,R <0.005 <0.005 <0.005 < F,R 4/22/2009 < <0.001 < < <0.001 < <0.001 <0.001 < MW-7 10/2/2007 < <0.001 <0.001 <0.001 < <0.001 <0.001 <0.001 < <0.001 <0.001 <0.001 < /28/2008 <0.005 < <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /6/2008 <0.005 < <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 4/22/2009 < < < < <0.001 <0.001 < MW /2/2007 < <0.002 < < <0.002 < <0.002 <0.002 <0.002 <0.002 <0.01 MW-9 10/3/2007 < F <0.005 <0.005 <0.005 <0.001 <0.005 <0.005 <0.005 < < <0.005 <0.005 <0.005 <0.01 4/25/2008 <0.005 < <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /21/2008 <0.005 < <0.005 <0.002 < < <0.005 < <0.005 <0.005 <0.005 <0.005 <0.01 4/22/2009 < < < < < < < < < < < MW /3/2008 < <0.001 < < <0.001 < <0.001 <0.001 <0.001 < /3/ <0.001 < < <0.001 < <0.001 <0.001 < MW-11 10/3/2007 < F <0.005 < F <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 < /28/2008 < <0.005 <0.002 <0.005 <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 < /21/2008 < <0.005 < <0.005 <0.005 <0.005 < < <0.005 < <0.01 4/24/2009 < <0.001 < <0.001 < <0.001 < <0.001 <0.001 < Page 1 of 2

24 All units in mg/l Sample Antimony Arsenic Barium Beryllium Cadmium Chromium TABLE 6 METALS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA Hexavalent Chromium Cobalt Copper Lead Mercury Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc MW-12 9/27/ <0.001 < F,R < F,R <0.001 < F,R <0.001 < < /28/2008 < <0.005 <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 < < /21/ <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 < <0.01 4/24/ <0.001 <0.001 <0.001 < < <0.001 < <0.001 <0.001 < MW /2/2007 < <0.001 < < <0.001 < <0.001 <0.001 < MW-14 1/2/ <0.002 < < <0.002 <0.001 < <0.002 <0.002 < /2/ <0.002 < < <0.002 <0.001 < <0.002 <0.002 < /29/2008 < <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /6/2008 < <0.005 <0.005 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 4/23/2009 < <0.001 < < < <0.001 <0.001 < MW-15 1/2/2008 < <0.001 < < <0.001 < <0.001 <0.001 < /2/ < <0.001 < < <0.001 < <0.001 <0.001 <0.001 < /29/2008 <0.005 <0.005 <0.005 <0.005 <0.002 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 < /6/2008 <0.005 <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 < <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.01 4/23/2009 < <0.001 < < <0.001 < < <0.001 < MW /2/ F,R < < F,R < F,R < < < < FR F,R 1/2/ F,R <0.001 < F,R < F,R < <0.001 <0.001 < F,R EW-1 10/1/2007 <0.001 <0.001 <0.001 <0.001 < < <0.001 <0.001 <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 < /23/2009 < <0.001 <0.001 <0.001 < <0.001 <0.001 <0.001 < < <0.001 <0.001 <0.001 < /23/ < <0.001 <0.001 <0.001 < < <0.001 < < <0.001 <0.001 <0.001 < EW-2 4/23/ <0.001 <0.001 <0.001 < < <0.001 < <0.001 <0.001 < EW-3 10/1/2007 < <0.001 <0.001 < F,R <0.001 <0.001 <0.001 <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 < /23/2009 < <0.001 <0.001 <0.001 < < <0.001 < <0.001 <0.001 <0.001 < HPW-1 1/14/1997 <0.06 <0.01 <0.2 <0.005 <0.2 < <0.05 <0.025 <0.004 < <0.1 <0.04 <0.05 <0.02 <0.01 <0.05 < /4/2007 < <0.001 < <0.001 <0.001 <0.001 <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 < F,R 4/29/ < /6/ < /22/2009 < < < < < < < < < < < < < < Notes: 1 - Duplicate Sample 2 - Product has been historically detected. Well was not sampled if product present during the time of the sampling event. 3 -Wells were destroyed during demolition activities 4 - Well located underneath large concrete pile during gauging and sampling events. F = Analyte was present in the associated field equipment blank. R = Detections in method blanks, trip blanks, equipment blanks, and water supply samples were also present in associated field samples at concentrations less than 1 order of magnitude greater. Bold indicates analyte above laboratory detection limits <# = Below reporting limit - = Not analyzed Page 2 of 2

25 TABLE 7 POLYCYCLIC AROMATIC HYDROCARBONS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA All units in 2- Methyl- Naphthalene 1- Methyl- Naphthalene Ace- Naphthylene Ace- Naphthene Phennanthrene Sample Naphthalene Flourene Anthracene Fluoranthene Pyrene Chrysene MW-1 10/1/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/29/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /21/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 4/23/2009 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-2 10/1/ <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/28/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /21/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 4/23/2009 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-3 10/5/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/25/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /6/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 MW /2/ F 72 F 57 F 1.2 < < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-5 10/26/2007 <0.20 <0.20 <0.20 <0.20 <0.20 < < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/25/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /21/2008 < <0.11 <0.11 <0.10 <0.10 <0.11 <0.11 <0.10 <0.11 <0.11 <0.11 <0.11 <0.11 <0.10 <0.11 <0.11 MW-6 9/27/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-7 10/2/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/28/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /6/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 MW /2/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-9 10/3/2007 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 <0.22 4/25/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /21/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 Benzo- (a)- Anthracene Benzo- (k) Flouranthene Benzo- (b) Flouranthene Benzo- (a)- Pyrene Indeno- (1,2, 3,c,d) Pyrene Di- benzo- (a,h) Anthracene Benzo- (g,h,i) Perylene Page 1 of 3

26 TABLE 7 POLYCYCLIC AROMATIC HYDROCARBONS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA All units in Sample Naphthalene 2- Methyl- Naphthalene Flourene MW /3/2008 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 1/3/ <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-11 10/3/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/28/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /21/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 MW-12 9/27/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/28/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /21/ <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 MW /2/ < MW-14 1/2/ <0.20 < < < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 1/2/ <0.20 < < < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/29/ < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /6/ < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 4/23/ <0.20 < <0.20 < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 MW-15 1/2/2008 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 1/2/ <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/29/2008 < <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 < /6/2008 < <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 MW /3/2008 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 1/3/ <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 EW-1 10/1/ < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/23/ <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/23/ <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 EW-2 4/23/ <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 EW-3 10/1/ < < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 4/23/ < <0.20 < <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 Pyrene Chrysene 1- Methyl- Naphthalene Ace- Naphthylene Ace- Naphthene Phennanthrene Anthracene Fluoranthene Benzo- (a)- Anthracene Benzo- (k) Flouranthene Benzo- (b) Flouranthene Benzo- (a)- Pyrene Indeno- (1,2, 3,c,d) Pyrene Di- benzo- (a,h) Anthracene Benzo- (g,h,i) Perylene Page 2 of 3

27 TABLE 7 POLYCYCLIC AROMATIC HYDROCARBONS IN GROUNDWATER PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA All units in Sample Naphthalene 2- Methyl- Naphthalene Flourene HPW-1 1/14/1997 < <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <2.00 <0.5 <2.00 <0.5 <0.5 <0.5 <0.50 <0.5 < /4/2007 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 Pyrene Chrysene 1- Methyl- Naphthalene Ace- Naphthylene Ace- Naphthene Phennanthrene Anthracene Fluoranthene Benzo- (a)- Anthracene Benzo- (k) Flouranthene Benzo- (b) Flouranthene Benzo- (a)- Pyrene Indeno- (1,2, 3,c,d) Pyrene Di- benzo- (a,h) Anthracene Benzo- (g,h,i) Perylene Notes: 1 - Duplicate Sample 2 - Product has been historically detected. Well was not sampled if product present during the time of the sampling event. 3 -Wells were destroyed during demolition activities 4 - Well located underneath large concrete pile during gauging and sampling events. F = Analyte was present in the associated field equipment blank. R = Detections in method blanks, trip blanks, equipment blanks, and water supply samples were also present in associated field samples at concentrations less than 1 order of magnitude greater. Bold indicates analyte above laboratory detection limits i <# = Below reporting limit - = Not analyzed Page 3 of 3

28 FIGURES

29

30

31 FIGURE 3 HISTORICAL TPH TRENDS IN EW-1 PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA TPH concentration () 1,000, ,000 10,000 1, TPH as Diesel TPH as Motor Oil TPH as Bunker C 1 Sampling Page 1 of 1

32 FIGURE 4 HISTORICAL TPH TRENDS IN EW-2 PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA 300,000 TPH concentration () 250, , , ,000 50,000 TPH as Diesel TPH as Motor Oil TPH as Bunker C 0 Sampling Page 1 of 1

33 FIGURE 5 HISTORICAL TPH TRENDS IN EW-3 PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA TPH concentration () 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 TPH as Diesel TPH as Motor Oil TPH as Bunker C Sampling Page 1 of 1

34 FIGURE 6 HISTORICAL TPH TRENDS IN MW-1 PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA 1500 TPH concentration () TPH as Diesel TPH as Motor Oil TPH as Bunker C 0 Sampling Page 1 of 1

35 FIGURE 7 HISTORICAL TPH TRENDS IN MW-2 PG+E HUNTERS POINT POWER PLANT SAN FRANCISCO, CA 1500 TPH concentration () TPH as Diesel TPH as Motor Oil TPH as Bunker C 0 Sampling Page 1 of 1

36 APPENDIX A Standard Operating Procedures

37 1.0 INTRODUCTION APPENDIX A FIELD PROTOCOL GROUNDWATER QUALITY SAMPLING This document describes procedures to be followed during low flow sampling of groundwater from monitoring wells. If warranted due to unexpected field conditions, procedures may depart from those outlined herein. Such field changes will be pre-approved by the project manager and documented in writing by field personnel. 2.0 PURGING PROCEDURE Wells will be purged using a low-flow methodology as described below. Guidance for the development of the method was obtained from Puls and Barcelona (1995) and from discussions with low-flow sampling equipment specialists. (1) A positive displacement pump with a Teflon bladder, peristaltic pump, or an electric submersible pump, will be slowly and carefully lowered into the well to reduce water column disturbance. The pump intake should be located at the middle or slightly above the middle of the well screen. If the water level is below the top of the well screen, the pump intake should be located at or just above the middle of the wetted screen interval. (2) An electric sounder will be slowly and carefully lowered into the well to reduce water column disturbance. An initial depth-to-water level will be taken and recorded on the Groundwater Sampling Record form. (3) To minimize mixing within the water column, purging will proceed at a flow rate low enough to limit drawdown as follows. If the initial water level in the well is above the top of the well screen, water should not be drawn below the top of the well screen. If the initial water level in the well is below the top of the well screen, purging should not draw water down more than 10 percent of the length of the wetted screened interval (to 90 percent of the initial water column). To ensure that these drawdown guidelines are met, the depth to water will be monitored continually and the pump rate adjusted as necessary. Depths-to-water during purging should be recorded every 3 to 5 minutes on the Groundwater Sampling Record. Longer recording intervals are appropriate as the depth to water stabilizes. (4) Temperature, ph, specific conductance, dissolved oxygen (DO), and oxidation-reduction potential (Eh or ORP) will also be recorded every three to five minutes during purging. Monitoring will occur via a flow-through cell installed in the pump discharge line of Teflon tubing. An initial change in these indicator parameters will indicate that water is beginning to be drawn from the aquifer formation instead of the stagnant well column, and stabilization will indicate that formation water is continuously being accessed. Stabilization will be considered achieved when: Change in ph is ±0.1 or less between consecutive measurements, and Page 1 of 5

38 Change in specific conductance is ±3 percent or less between consecutive measurements, and Change in DO is ±10 percent or less between consecutive measurements, and Change in temperature is ±0.5ºC between consecutive measurements (Although temperature is not usually a good indicator of formation versus stagnant water, it is an important indicator because it will change as any remaining rinse water from decontamination is removed from the pump discharge line. The removal of the rinse water is important to ensure representative samples.) Measurements of indicator parameters during purging will be noted on the Groundwater Sampling Record. Following parameter stabilization, turbidity will be measured and noted on the Groundwater Sampling Record. 3.0 SAMPLING PROCEDURE Sampling will be initiated immediately after indicator parameter stabilization and turbidity measurement. The sampling procedure is as follows: (1) The flow-through cell should be disconnected or bypassed. (2) Using the pump discharge tube, laboratory-supplied sample bottles with appropriate preservatives should be filled to their maximum capacities. VOAs, because the associated analytes are gas-sensitive, should be filled first. Splashing of the water in the sample container and exposure to the atmosphere will be minimized during sampling. Sample containers that have been prepared with preservatives will not be overfilled. The containers will be capped tightly immediately after filling. VOAs will be checked to be sure that no head space is present in the sample container. (3) When the analysis of metals is required, field filtration of each sample will be performed using an in-line 0.45-micron filter. Filtered samples should be collected last and sequentially so that the filter only needs to be attached/detached one time. Filters will be flushed prior to sampling as recommended by the manufacturer. If manufacturer s guidelines are not available, a volume equal to twice the filter capacity will be used to flush the filter. (4) Samples will be labeled as described in Section 5.0 and placed in an ice-cooled, insulated chest (cooler). VOAs will be packed in laboratory-supplied foam VOA holders, and samples will be carefully placed to reduce the chance of breakage. A temperature blank will accompany each cooler, and a laboratory-supplied trip blank to be analyzed for VOCs will accompany each cooler containing VOC samples. 4.0 SAMPLE LABELING Using waterproof ink, sample containers will be labeled with the following information on selfadhesive, preprinted tags: Page 2 of 5

39 Project Name/Identification Sample Identification and time samples were obtained Requested analytes/analysis method Treatment (preservative added, filtered, etc.) Signature (first initial, last name) of field personnel 5.0 COLLECTION OF FIELD DUPLICATES Field duplicates will be collected at the rate of one per 20 samples collected for the event, excluding quality control samples, and analyzed for the same constituents as the main sample. Duplicates will be collected by filling additional sample container(s) from the discharge tube just after collection of the original sample; to avoid aeration and exposure to the environment, groundwater will not be split between containers. When collecting a duplicate sample, double volumes of analytes should be collected together (i.e., first fill all containers for VOCs, then all containers for SVOCs, etc.) 6.0 EQUIPMENT CALIBRATION The flow-through cell and turbidity meter will be calibrated by field personnel at the beginning of each sampling day and documented on the Groundwater Sampling Record. Documentation will include, as appropriate the equipment model and manufacturer, expiration dates of calibration standard solutions, and calibration results. Subsequent deviations in instrument readings that appear be related to instrument calibration will be noted and adjusted (recalibrated or added/subtracted from measurements) as necessary. Equipment calibration guidelines are as follows: ph One or more standard solutions (ph=4, 7, and 10) are used. Specific Conductance A standard solution of 3900 μmhos/cm is used. DO The concentration of DO at 100 percent saturation is recorded and used as the reference for subsequent measurements. Eh A standard reference solution is used. The strength (in millivolts) of the solution used is temperature-dependent. Turbidity A standard solution of 0.02 NTU is used. 7.0 EQUIPMENT DECONTAMINATION Sample bottles and bottle caps will be delivered to the sampling site or office cleaned and prepared by the analytical laboratory subcontractor or their supplier using standard EPAapproved protocols. Sample bottles and bottle caps will be protected from dust or other contamination between time of receipt and time of actual usage at the sampling site. All sampling equipment that will be used at more than one well will be cleaned at the start of each sampling day and after the sampling of each well is completed. New equipment will be cleaned prior to use. Cleaning procedures will be accomplished as follows: Page 3 of 5

40 (1) Scrub with a detergent-potable water solution or other solutions deemed appropriate using a hard bristle brush. (2) Rinse with clean potable water. (3) Rinse with deionized (DI) water. (4) Air dry or dry with a clean paper towel. Equipment may alternatively be cleaned by high-pressure steam wash and steam-rinse, followed by a DI water rinse. Some equipment, such as a submersible pump/discharge line assembly, cannot be internally cleaned as described above. Such equipment will be cleaned by circulating a detergent-potable water solution through the assembly, followed by clean tap water from a municipal supply, then by DI water. 8.0 COLLECTION OF EQUIPMENT RINSE BLANKS Equipment blanks are used as a quality control check on equipment contamination or crosscontamination between wells. Equipment blanks will be collected each day. Additionally, each time any component of the sampling equipment is changed (e.g. new pump bladder, new discharge tube), an additional equipment blank is required. Equipment blanks will be analyzed for the same constituents listed on the COC for that particular day. Blanks will be collected immediately following equipment decontamination by running DI water through the entire equipment setup (pump, discharge tube, etc.), just as a sample from a well would be collected. The DI water will be collected from the discharge tube as outlined in Section SAMPLE CONTAINERS, VOLUMES, PRESERVATION, AND STORAGE The sample containers will be either glass or plastic and will be obtained, pre-prepared with the necessary preservative, from the analytical laboratory. The required container materials, volumes, and preservatives depend on the analyte(s) and analytical methods. All water samples submitted for chemical analysis will be stored during sampling and shipping in ice-cooled insulated containers (coolers). The cooler temperature goal is 4±2 C SAMPLE CUSTODY AND SHIPMENT A chain-of-custody (COC) form will accompany each daily sample shipment to the laboratory. COCs will be completed with the required project, company, and field personnel information, sample identifications, dates and times, sample matrices (e.g. water), number of containers per sample, preservatives, and requested analytes/analyses. Via a note on the COC, field personnel Page 4 of 5

41 will instruct the laboratory to measure and record on the COC the temperature of the temperature blank upon arrival of the cooler(s). Samples will be delivered to the laboratory via courier delivery or commercial shipper (e.g., Federal Express). Care will be taken to ensure that samples arrive at the laboratory in sufficient time to comply with analytical holding times. Page 5 of 5

42 APPENDIX B Field Groundwater Sampling Records

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62 APPENDIX C Copies of Laboratory Analytical Reports

63 alscience nvironmental aboratories, Inc. Page 1 of 66 May 04, 2009 Moises Carvalho TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA P Subject: Calscience Work Order No.: Client Reference: HPPP / Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 4/24/2009 and analyzed in accordance with the attached chain-of-custody. Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our ity Systems Manual, applicable standard operating procedures, and other related documentation. The original report of subcontracted analysis, if any, is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories, Inc. Danielle Gonsman Project Manager..... CA-ELAP ID: 1230 NELAP ID: 03220CA CSDLAC ID: SCAQMD ID: 93LA Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

64 Page 2 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3005A Filt. / EPA 7470A Filt. Method: EPA 6020 / EPA 7470A Units: mg/l Project: HPPP / Page 1 of 6 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 09:05 16:38 Comment(s): -Mercury was analyzed on 4/24/2009 6:05:12 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper ND Zinc Lead MW B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 09:55 16:42 Comment(s): -Mercury was analyzed on 4/24/2009 6:11:54 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium Thallium ND Cobalt ND Vanadium Copper Zinc Lead ND MW B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 10:30 16:46 QC Batch ID L01F L01F L01F Comment(s): -Mercury was analyzed on 4/24/2009 6:14:06 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium Thallium ND Cobalt ND Vanadium Copper Zinc Lead ND RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

65 Page 3 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3005A Filt. / EPA 7470A Filt. Method: EPA 6020 / EPA 7470A Units: mg/l Project: HPPP / Page 2 of 6 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 11:15 17:02 Comment(s): -Mercury was analyzed on 4/24/2009 6:16:19 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium Cadmium ND Silver ND Chromium ND Thallium ND Cobalt Vanadium ND Copper Zinc Lead ND MW B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 12:30 17:06 Comment(s): -Mercury was analyzed on 4/24/2009 6:18:33 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium 1.16 Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt Vanadium Copper Zinc Lead ND HPW B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 15:00 17:10 QC Batch ID L01F L01F L01F Comment(s): -Mercury was analyzed on 4/24/2009 6:20:47 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum ND Barium Nickel ND Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper ND Zinc Lead ND RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

66 Page 4 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3005A Filt. / EPA 7470A Filt. Method: EPA 6020 / EPA 7470A Units: mg/l Project: HPPP / Page 3 of 6 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EB B 04/22/09 Aqueous ICP/MS A 04/27/09 04/27/09 16:30 17:14 Comment(s): -Mercury was analyzed on 4/24/2009 6:23:01 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic ND Molybdenum ND Barium ND Nickel ND Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper ND Zinc Lead ND MW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 08:45 17:18 Comment(s): -Mercury was analyzed on 4/24/2009 6:25:16 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum ND Barium Nickel Beryllium ND Selenium Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper Zinc Lead ND MW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 09:40 17:22 QC Batch ID L01F L01F L01F Comment(s): -Mercury was analyzed on 4/24/2009 6:27:31 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium Cadmium ND Silver ND Chromium Thallium ND Cobalt ND Vanadium Copper Zinc Lead ND RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

67 Page 5 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3005A Filt. / EPA 7470A Filt. Method: EPA 6020 / EPA 7470A Units: mg/l Project: HPPP / Page 4 of 6 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 10:40 17:26 Comment(s): -Mercury was analyzed on 4/24/2009 6:29:47 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum ND Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper ND Zinc Lead ND EW-1 DUP B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 10:40 17:30 Comment(s): -Mercury was analyzed on 4/24/2009 6:32:04 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum ND Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper Zinc Lead ND EW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 11:30 17:34 QC Batch ID L01F L01F L01F Comment(s): -Mercury was analyzed on 4/24/2009 6:38:50 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper Zinc Lead ND RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

68 Page 6 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3005A Filt. / EPA 7470A Filt. Method: EPA 6020 / EPA 7470A Units: mg/l Project: HPPP / Page 5 of 6 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 12:30 17:38 Comment(s): -Mercury was analyzed on 4/24/2009 6:41:03 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper Zinc Lead ND MW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 14:30 17:54 Comment(s): -Mercury was analyzed on 4/24/2009 6:43:13 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum Barium Nickel Beryllium ND Selenium ND Cadmium ND Silver ND Chromium Thallium ND Cobalt Vanadium Copper Zinc Lead MW B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 13:30 17:58 QC Batch ID L01F L01F L01F Comment(s): -Mercury was analyzed on 4/24/2009 6:45:23 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic Molybdenum ND Barium Nickel Beryllium ND Selenium Cadmium ND Silver ND Chromium Thallium ND Cobalt ND Vanadium Copper Zinc Lead ND RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

69 Page 7 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3005A Filt. / EPA 7470A Filt. Method: EPA 6020 / EPA 7470A Units: mg/l Project: HPPP / Page 6 of 6 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EB B 04/23/09 Aqueous ICP/MS A 04/27/09 04/27/09 15:00 18:02 Comment(s): -Mercury was analyzed on 4/24/2009 6:47:34 PM with batch L04F Parameter Result RL DF Parameter Result RL DF Antimony ND Mercury ND Arsenic ND Molybdenum ND Barium Nickel ND Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper Zinc Lead ND Method Blank ,071 N/A Aqueous ICP/MS A 04/27/09 04/27/09 16:11 QC Batch ID L01F L01F Parameter Result RL DF Parameter Result RL DF Antimony ND Lead ND Arsenic ND Molybdenum ND Barium ND Nickel ND Beryllium ND Selenium ND Cadmium ND Silver ND Chromium ND Thallium ND Cobalt ND Vanadium ND Copper ND Zinc ND Method Blank ,081 N/A Aqueous Mercury 04/24/09 04/24/09 17: L04F Parameter Result RL DF Mercury ND RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

70 Page 8 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 1 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/22/09 Aqueous GC 43 04/27/09 04/30/09 09:05 15:05 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 09:55 19:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 10:30 20:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 11:15 20:21 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

71 Page 9 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 2 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 12:30 20:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl HPW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 15:00 21:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl EB A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 16:30 21:21 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl MW A 04/23/09 Aqueous GC 43 04/27/09 04/29/09 08:45 21:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

72 Page 10 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 3 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/23/09 Aqueous GC 43 04/27/09 04/29/09 09:40 10:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 05/01/09 10:40 12:19 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl EW-1 DUP A 04/23/09 Aqueous GC 43 04/27/09 05/01/09 10:40 12:39 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 11:30 12:03 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

73 Page 11 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 4 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 12:30 12:23 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl MW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 14:30 12:43 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl MW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 13:30 01:03 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl EB A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 15:00 01:23 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B27 TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

74 Page 12 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 5 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed Method Blank N/A Aqueous GC 43 04/27/09 04/29/09 16:59 QC Batch ID B27 Parameter Result RL DF Units TPH as Motor Oil ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

75 Page 13 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 1 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/22/09 Aqueous GC 43 04/27/09 04/30/09 09:05 15:05 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 09:55 19:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 10:30 20:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 11:15 20:21 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

76 Page 14 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 2 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 12:30 20:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl HPW A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 15:00 21:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl EB A 04/22/09 Aqueous GC 43 04/27/09 04/29/09 16:30 21:21 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl MW A 04/23/09 Aqueous GC 43 04/27/09 04/29/09 08:45 21:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

77 Page 15 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 3 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/23/09 Aqueous GC 43 04/27/09 04/29/09 09:40 10:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 05/01/09 10:40 12:19 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel REC (%) Control Limits Decachlorobiphenyl EW-1 DUP A 04/23/09 Aqueous GC 43 04/27/09 05/01/09 10:40 12:39 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

78 Page 16 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 4 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 11:30 12:03 Comment(s): -The sample chromatographic pattern for TPH does not match the chromatographic pattern of the specified standard. Quantitation of the unknown hydrocarbon(s) in the sample was based upon the specified standard. -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B26 TPH as Diesel REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 12:30 12:23 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl MW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 14:30 12:43 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

79 Page 17 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 5 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 13:30 01:03 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl EB A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 15:00 01:23 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B26 TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl Method Blank ,054 N/A Aqueous GC 43 04/27/09 04/29/09 16: B26 Parameter Result RL DF Units TPH as Diesel ND 50 1 REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

80 Page 18 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8015B (M) Project: HPPP / Page 1 of 3 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 08:45 19:18 QC Batch ID B01 Parameter Result RL DF Units TPH as Gasoline ND 50 1 REC (%) Control Limits 1,4-Bromofluorobenzene MW G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 09:40 14: B01 Parameter Result RL DF Units TPH as Gasoline ND 50 1 REC (%) Control Limits 1,4-Bromofluorobenzene EW G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 10:40 19: B01 Parameter Result RL DF Units TPH as Gasoline REC (%) Control Limits 1,4-Bromofluorobenzene EW-1 DUP G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 10:40 20: B01 Parameter Result RL DF Units TPH as Gasoline REC (%) Control Limits 1,4-Bromofluorobenzene RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

81 Page 19 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8015B (M) Project: HPPP / Page 2 of 3 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 11:30 20:58 QC Batch ID B01 Parameter Result RL DF Units TPH as Gasoline REC (%) Control Limits 1,4-Bromofluorobenzene EW G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 12:30 22: B01 Parameter Result RL DF Units TPH as Gasoline REC (%) Control Limits 1,4-Bromofluorobenzene MW G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 14:30 22: B01 Parameter Result RL DF Units TPH as Gasoline ND 50 1 REC (%) Control Limits 1,4-Bromofluorobenzene EB G 04/23/09 Aqueous GC 24 04/29/09 04/29/09 15:00 23: B01 Parameter Result RL DF Units TPH as Gasoline ND 50 1 REC (%) Control Limits 1,4-Bromofluorobenzene RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

82 Page 20 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8015B (M) Project: HPPP / Page 3 of 3 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed Method Blank ,178 N/A Aqueous GC 24 04/29/09 04/29/09 12:35 QC Batch ID B01 Parameter Result RL DF Units TPH as Gasoline ND 50 1 REC (%) Control Limits 1,4-Bromofluorobenzene RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

83 Page 21 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 1 of 3 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/23/09 Aqueous GC 43 04/27/09 04/29/09 08:45 21:41 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B28 TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl MW A 04/23/09 Aqueous GC 43 04/27/09 04/29/09 09:40 10:01 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B28 TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 05/01/09 10:40 12:19 Comment(s): -The sample chromatographic pattern for TPH does not match the chromatographic pattern of the specified standard. Quantitation of the unknown hydrocarbon(s) in the sample was based upon the specified standard. -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B28 TPH as Bunker Fuel REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

84 Page 22 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 2 of 3 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW-1 DUP A 04/23/09 Aqueous GC 43 04/27/09 05/01/09 10:40 12:39 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B28 TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 11:30 12:03 Comment(s): -The sample chromatographic pattern for TPH does not match the chromatographic pattern of the specified standard. Quantitation of the unknown hydrocarbon(s) in the sample was based upon the specified standard. -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B28 TPH as Bunker Fuel REC (%) Control Limits Decachlorobiphenyl EW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 12:30 12:23 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B28 TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

85 Page 23 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8015B (M) Project: HPPP / Page 3 of 3 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 14:30 12:43 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units QC Batch ID B28 TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl EB A 04/23/09 Aqueous GC 43 04/27/09 04/30/09 15:00 01:23 Comment(s): -The sample extract was subjected to Silica Gel treatment prior to analysis. Parameter Result RL DF Units B28 TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl Method Blank N/A Aqueous GC 43 04/27/09 04/29/09 16: B28 Parameter Result RL DF Units TPH as Bunker Fuel ND REC (%) Control Limits Decachlorobiphenyl RL - Reporting Limit, DF - Dilution Factor, - ifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

86 Page 24 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: Project: HPPP / Page 1 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 08:45 13:16 QC Batch ID L09 Parameter Result RL DF Parameter Result RL DF Naphthalene ND Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene ND Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control Limits REC (%) Control Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d MW C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 09:40 14: L09 Parameter Result RL DF Parameter Result RL DF Naphthalene ND Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene ND Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control REC (%) Control Limits Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

87 Page 25 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: Project: HPPP / Page 2 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 10:40 19:20 QC Batch ID L09 Parameter Result RL DF Parameter Result RL DF Naphthalene Pyrene ND Methylnaphthalene Benzo (a) Anthracene ND Methylnaphthalene Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control Limits REC (%) Control Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d EW-1 DUP C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 10:40 20: L09 Parameter Result RL DF Parameter Result RL DF Naphthalene Pyrene ND Methylnaphthalene Benzo (a) Anthracene ND Methylnaphthalene Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control REC (%) Control Limits Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

88 Page 26 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: Project: HPPP / Page 3 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 11:30 16:18 QC Batch ID L09 Parameter Result RL DF Parameter Result RL DF Naphthalene Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control Limits REC (%) Control Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d EW C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 12:30 17: L09 Parameter Result RL DF Parameter Result RL DF Naphthalene ND Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene ND Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control REC (%) Control Limits Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

89 Page 27 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: Project: HPPP / Page 4 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 14:30 17:49 QC Batch ID L09 Parameter Result RL DF Parameter Result RL DF Naphthalene Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene ND Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control Limits REC (%) Control Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d EB C 04/23/09 Aqueous GC/MS GG 04/28/09 04/30/09 15:00 18: L09 Parameter Result RL DF Parameter Result RL DF Naphthalene ND Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene ND Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control REC (%) Control Limits Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

90 Page 28 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 3510C Method: EPA 8270C SIM PAHs Units: Project: HPPP / Page 5 of 5 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed Method Blank N/A Aqueous GC/MS GG 04/28/09 04/30/09 10:59 Parameter Result RL DF Parameter Result RL DF Naphthalene ND Pyrene ND Methylnaphthalene ND Benzo (a) Anthracene ND Methylnaphthalene ND Chrysene ND Acenaphthylene ND Benzo (k) Fluoranthene ND Acenaphthene ND Benzo (b) Fluoranthene ND Fluorene ND Benzo (a) Pyrene ND Phenanthrene ND Indeno (1,2,3-c,d) Pyrene ND Anthracene ND Dibenz (a,h) Anthracene ND Fluoranthene ND Benzo (g,h,i) Perylene ND REC (%) Control REC (%) Control Limits Limits Nitrobenzene-d Fluorobiphenyl p-terphenyl-d QC Batch ID L09 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

91 Page 29 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 1 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 08:45 17:27 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

92 Page 30 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 2 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 09:40 19:15 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

93 Page 31 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 3 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW D 04/23/09 Aqueous GC/MS LL 04/30/09 04/30/09 10:40 15:05 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene Bromomethane ND Hexanone ND Butanone ND 20 2 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene sec-butylbenzene ND Methylene Chloride ND 20 2 tert-butylbenzene ND Methyl-2-Pentanone ND 20 2 Carbon Disulfide ND 20 2 Naphthalene Carbon Tetrachloride ND n-propylbenzene Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 20 2 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 20 2 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND 10 2 Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ,1-Dichloroethane ND ,3,5-Trimethylbenzene ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene t-1,2-dichloroethene ND o-xylene ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L02 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

94 Page 32 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 4 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW-1 DUP F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 10:40 20:08 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene Bromomethane ND Hexanone ND Butanone ND 20 2 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene sec-butylbenzene ND Methylene Chloride ND 20 2 tert-butylbenzene ND Methyl-2-Pentanone ND 20 2 Carbon Disulfide ND 20 2 Naphthalene ND 20 2 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 20 2 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 20 2 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND 10 2 Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ,1-Dichloroethane ND ,3,5-Trimethylbenzene ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene t-1,2-dichloroethene ND o-xylene ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

95 Page 33 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 5 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 11:30 20:35 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

96 Page 34 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 6 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EW F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 12:30 21:02 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

97 Page 35 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 7 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed MW F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 14:30 21:28 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

98 Page 36 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 8 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed EB F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 15:00 21:56 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

99 Page 37 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 9 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed TRIP BLANK F 04/23/09 Aqueous GC/MS LL 04/29/09 04/29/09 00:00 22:23 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

100 Page 38 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 10 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed Method Blank ,335 N/A Aqueous GC/MS LL 04/29/09 04/29/09 17:00 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L01 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

101 Page 39 of 66 alscience nvironmental aboratories, Inc. Analytical Report TRC Solutions, Inc. Received: 04/24/09 55 Second Street, Suite 575 Work Order No: San Francisco, CA Preparation: EPA 5030B Method: EPA 8260B Units: Project: HPPP / Page 11 of 11 Client Sample Number Lab Sample Number /Time Collected Matrix Instrument Prepared /Time Analyzed Method Blank ,345 N/A Aqueous GC/MS LL 04/30/09 04/30/09 14:38 Parameter Result RL DF Parameter Result RL DF Acetone ND ,3-Dichloropropane ND Benzene ND ,2-Dichloropropane ND Bromobenzene ND ,1-Dichloropropene ND Bromochloromethane ND c-1,3-dichloropropene ND Bromodichloromethane ND t-1,3-dichloropropene ND Bromoform ND Ethylbenzene ND Bromomethane ND Hexanone ND Butanone ND 10 1 Isopropylbenzene ND n-butylbenzene ND p-isopropyltoluene ND sec-butylbenzene ND Methylene Chloride ND 10 1 tert-butylbenzene ND Methyl-2-Pentanone ND 10 1 Carbon Disulfide ND 10 1 Naphthalene ND 10 1 Carbon Tetrachloride ND n-propylbenzene ND Chlorobenzene ND Styrene ND Chloroethane ND ,1,1,2-Tetrachloroethane ND Chloroform ND ,1,2,2-Tetrachloroethane ND Chloromethane ND 10 1 Tetrachloroethene ND Chlorotoluene ND Toluene ND Chlorotoluene ND ,2,3-Trichlorobenzene ND Dibromochloromethane ND ,2,4-Trichlorobenzene ND ,2-Dibromo-3-Chloropropane ND ,1,1-Trichloroethane ND ,2-Dibromoethane ND ,1,2-Trichloro-1,2,2-Trifluoroethane ND 10 1 Dibromomethane ND ,1,2-Trichloroethane ND ,2-Dichlorobenzene ND Trichloroethene ND ,3-Dichlorobenzene ND Trichlorofluoromethane ND ,4-Dichlorobenzene ND ,2,3-Trichloropropane ND Dichlorodifluoromethane ND ,2,4-Trimethylbenzene ND ,1-Dichloroethane ND ,3,5-Trimethylbenzene ND ,2-Dichloroethane ND Vinyl Acetate ND ,1-Dichloroethene ND Vinyl Chloride ND c-1,2-dichloroethene ND p/m-xylene ND t-1,2-dichloroethene ND o-xylene ND ,2-Dichloropropane ND Methyl-t-Butyl Ether (MTBE) ND REC (%) Control REC (%) Control Limits Limits Dibromofluoromethane ,2-Dichloroethane-d Toluene-d ,4-Bromofluorobenzene QC Batch ID L02 RL - Reporting Limit, DF - Dilution Factor, - ifiers Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

102 Page 40 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - Spike/Spike Duplicate Received: 04/24/09 Work Order No: Preparation: EPA 3005A Filt. Method: EPA 6020 Project HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed MS/MSD Batch Number MW-9 Aqueous ICP/MS A 04/27/09 04/27/ S01 Parameter MS %REC MSD %REC %REC CL RPD RPD CL ifiers Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

103 Page 41 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - PDS / PDSD Received 04/24/09 Work Order No: Preparation: EPA 3005A Filt. Method: EPA 6020 Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed PDS/PDSD Batch Number MW-9 Aqueous ICP/MS A 04/27/09 04/27/ S01 Parameter PDS %REC PDSD %REC %REC CL RPD RPD CL ifiers Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

104 Page 42 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - Spike/Spike Duplicate Received: 04/24/09 Work Order No: Preparation: EPA 5030B Method: EPA 8015B (M) Project HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed MS/MSD Batch Number MW-2 Aqueous GC 24 04/29/09 04/29/ S01 Parameter MS %REC MSD %REC %REC CL RPD RPD CL ifiers TPH as Gasoline RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

105 Page 43 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - Spike/Spike Duplicate Received: 04/24/09 Work Order No: Preparation: EPA 7470A Total Method: EPA 7470A Project HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed MS/MSD Batch Number Aqueous Mercury 04/24/09 04/24/ S04 Parameter MS %REC MSD %REC %REC CL RPD RPD CL ifiers Mercury RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

106 Page 44 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - Spike/Spike Duplicate Received: 04/24/09 Work Order No: Preparation: EPA 5030B Method: EPA 8260B Project HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed MS/MSD Batch Number MW-1 Aqueous GC/MS LL 04/29/09 04/29/ S01 Parameter MS %REC MSD %REC %REC CL RPD RPD CL ifiers Benzene Carbon Tetrachloride Chlorobenzene ,2-Dibromoethane ,2-Dichlorobenzene ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Tert-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Ethanol RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

107 Page 45 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - Spike/Spike Duplicate Received: 04/24/09 Work Order No: Preparation: EPA 5030B Method: EPA 8260B Project HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed MS/MSD Batch Number Aqueous GC/MS LL 04/30/09 04/30/ S01 Parameter MS %REC MSD %REC %REC CL RPD RPD CL ifiers Benzene Carbon Tetrachloride Chlorobenzene ,2-Dibromoethane ,2-Dichlorobenzene ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Tert-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Ethanol RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

108 Page 46 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: N/A Work Order No: Preparation: EPA 3005A Filt. Method: EPA 6020 Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number ,071 Parameter Aqueous ICP/MS A 04/27/09 04/27/09 LCS %REC LCSD %REC %REC CL ME_CL RPD L01F RPD CL Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc ifiers Total number of LCS compounds : 16 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result : Pass 1 RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

109 Page 47 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 3510C EPA 8015B (M) Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number Aqueous GC 43 04/27/09 04/29/ B27 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL ifiers TPH as Motor Oil RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

110 Page 48 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 3510C EPA 8015B (M) Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number ,054 Aqueous GC 43 04/27/09 04/29/ B26 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL ifiers TPH as Diesel RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

111 Page 49 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 5030B EPA 8015B (M) Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number ,178 Aqueous GC 24 04/29/09 04/29/ B01 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL ifiers TPH as Gasoline RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

112 Page 50 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 3510C EPA 8015B (M) Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number Aqueous GC 43 04/27/09 04/29/ B28 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL ifiers TPH as Bunker Fuel RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

113 Page 51 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 7470A Filt. EPA 7470A Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number ,081 Aqueous Mercury 04/24/09 04/24/ L04F Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL ifiers Mercury RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

114 Page 52 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 3510C EPA 8270C SIM PAHs Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number Parameter Aqueous GC/MS GG 04/28/09 04/30/09 LCS %REC LCSD %REC %REC CL ME_CL RPD L09 RPD CL Naphthalene Methylnaphthalene Methylnaphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benzo (a) Anthracene Chrysene Benzo (k) Fluoranthene Benzo (b) Fluoranthene Benzo (a) Pyrene Indeno (1,2,3-c,d) Pyrene Dibenz (a,h) Anthracene Benzo (g,h,i) Perylene ifiers Total number of LCS compounds : 18 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result : Pass 1 RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

115 Page 53 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 5030B EPA 8260B Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number ,335 Parameter Aqueous GC/MS LL 04/29/09 04/29/09 LCS %REC LCSD %REC %REC CL ME_CL RPD L01 RPD CL Benzene Carbon Tetrachloride Chlorobenzene ,2-Dibromoethane ,2-Dichlorobenzene ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Tert-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Ethanol ifiers Total number of LCS compounds : 16 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result : Pass 1 RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

116 Page 54 of 66 alscience nvironmental aboratories, Inc. TRC Solutions, Inc. 55 Second Street, Suite 575 San Francisco, CA ity Control - LCS/LCS Duplicate Received: Work Order No: Preparation: Method: N/A EPA 5030B EPA 8260B Project: HPPP / ity Control Sample ID Matrix Instrument Prepared Analyzed LCS/LCSD Batch Number ,345 Parameter Aqueous GC/MS LL 04/30/09 04/30/09 LCS %REC LCSD %REC %REC CL ME_CL RPD L02 RPD CL Benzene Carbon Tetrachloride Chlorobenzene ,2-Dibromoethane ,2-Dichlorobenzene ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Tert-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Ethanol ifiers ME,X Total number of LCS compounds : 16 Total number of ME compounds : 1 Total number of ME compounds allowed : LCS ME CL validation result : Pass 1 RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

117 Page 55 of 66 alscience nvironmental aboratories, Inc. Glossary of Terms and ifiers Work Order Number: ifier * A B C E H J ME N ND Q U X Z Definition See applicable analysis comment. Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 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. Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. The MS/MSD RPD was out of control due to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. The PDS/PDSD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported with no further corrective action required. Result is the average of all dilutions, as defined by the method. Analyte was present in the associated method blank. Analyte presence was not confirmed on primary column. Concentration exceeds the calibration range. Sample received and/or analyzed past the recommended holding time. Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. LCS Recovery Percentage is within LCS ME Control Limit range. Nontarget Analyte. 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. Undetected at the laboratory method detection limit. % Recovery and/or RPD out-of-range. Analyte presence was not confirmed by second column or GC/MS analysis Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

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123 Page 61 of 66 McCampbell Analytical, Inc. "When ity Counts" 1534 Willow Pass Road, Pittsburg, CA Web: Telephone: Fax: CalScience Environmental Laborat 7440 Lincoln Way Garden Grove, CA Client Project ID: # Client Contact: Danielle Gonsman Client P.O.: Sampled: 04/23/09 Received: 04/23/09 Reported: 04/29/09 Completed: 04/29/09 WorkOrder: April 29, 2009 Dear Danielle: Enclosed within are: 1) The results of the 9 analyzed samples from your project: 2) A QC report for the above samples, 3) A copy of the chain of custody, and 4) An invoice for analytical services. # , All analyses were completed satisfactorily and all QC samples were found to be within our control limits. If you have any questions or concerns, please feel free to give me a call. Thank you for choosing McCampbell Analytical Laboratories for your analytical needs. Best regards,

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