PRELIMINARY SITE INVESTIGATION REPORT - … of Soil Analytical Results – Petroleum Hydrocarbons...

PREPARED FOR:

CALIFORNIA DEPARTMENT OF TRANSPORTATION – DISTRICT 1ENVIRONMENTAL ENGINEERING OFFICE1656 UNION STREETEUREKA, CALIFORNIA 95501

PREPARED BY:

GEOCON CONSULTANTS, INC.3160 GOLD VALLEY DRIVE, SUITE 800RANCHO CORDOVA, CALIFORNIA 95742

GEOCON PROJECT NO. S9300-06-142TASK ORDER NO. 142, EA NO. 01-436400CONTRACT NO. 03A1368

Dr. Fine Bridge Replacement Projectand Melody Market Parcel

State Route 101 PM 35.8 to 36.5Del Norte County, California

PRELIMINARYSITE INVESTIGATION REPORT

NOVEMBER 2010

TABLE OF CONTENTS PRELIMINARY SITE INVESTIGATION REPORT Page

1.0 INTRODUCTION.....................................................................................................................1 1.1 Project Description and Proposed Improvements.........................................................1 1.2 General Objectives .......................................................................................................1

2.0 BACKGROUND.......................................................................................................................1 2.1 Potential Petroleum Hydrocarbon Impacts...................................................................1 2.2 Waste Determination Criteria – Petroleum Hydrocarbons...........................................2 2.3 Potential Lead Soil Impacts..........................................................................................2 2.4 Hazardous Waste Determination Criteria – Lead.........................................................2

3.0 SCOPE OF SERVICES.............................................................................................................3 3.1 Pre-field Activities........................................................................................................3 3.2 Field Activities .............................................................................................................3

4.0 INVESTIGATIVE METHODS ................................................................................................4 4.1 Boring Location Rationale ...........................................................................................4

4.1.1 ADL.................................................................................................................4 4.1.2 Petroleum Hydrocarbons .................................................................................4

4.2 Aerially Deposited Lead Soil Sampling Procedures ....................................................4 4.3 Petroleum Hydrocarbon Soil and Groundwater Sampling Procedures ........................4 4.4 Field Quality Assurance/Quality Control Procedures ..................................................5 4.5 Laboratory Analyses.....................................................................................................6

4.5.1 ADL.................................................................................................................6 4.5.2 Petroleum Hydrocarbons .................................................................................6 4.5.3 Laboratory QA/QC..........................................................................................6

5.0 FIELD OBSERVATIONS AND INVESTIGATIVE RESULTS .............................................7 5.1 Site Conditions .............................................................................................................7 5.2 ADL Analytical Results ...............................................................................................7 5.3 Petroleum Hydrocarbon Analytical Results .................................................................7 5.4 Laboratory Quality Assurance/Quality Control ...........................................................8 5.5 Statistical Evaluation for Lead Detected in Soil Samples ............................................8

6.0 CONCLUSIONS AND RECOMMENDATIONS ..................................................................10 6.1 ADL............................................................................................................................10 6.2 Petroleum Hydrocarbons in Soil and Groundwater....................................................10 6.3 Melody Market Parcel Purchase.................................................................................11 6.4 Worker Protection ......................................................................................................11

7.0 REPORT LIMITATIONS .......................................................................................................12 FIGURES 1. Vicinity Map 2-1 and 2-2. Site Plans

TABLES 1. Summary of Soil Analytical Results – Total Lead 2. Summary of Soil Analytical Results – Petroleum Hydrocarbons 3. Summary of Groundwater Analytical Results – Petroleum Hydrocarbons

APPENDICES A. Borings Logs B. Laboratory Reports and Chain-of-custody Documentation C. Lead Statistics D. SWRCB Geotracker Case Closure Status

Dr. Fine Bridge/Melody Market Parcel, Task Order No. 142 Caltrans Contract 03A1368, EA No. 01-436400 Project No. S9300-06-142 - 1 - November 10, 2010

PRELIMINARY SITE INVESTIGATION REPORT

1.0 INTRODUCTION

This Preliminary Site Investigation Report for the Dr. Fine Bridge replacement project and Melody Market Parcel was prepared by Geocon Consultants, Inc. under California Department of Transportation (Caltrans) Contract No. 03A1368, Task Order (TO) Number 142, and Expense Authorization (EA) 01-436400.

1.1 Project Description and Proposed Improvements

The project area consists of Caltrans right-of-way along the northwest and southwest embankment slopes of Dr. Fine Bridge that spans the Smith River on State Route 101 (SR-101) from Post Mile (PM) 35.8 to 36.5 and the approximate 5-acre former Melody Market parcel located at 7300 Lake Earl Drive (the Site) in Fort Dick, Del Norte County, California. Caltrans is proposing to replace Dr. Fine Bridge with a new bridge, which will require acquisition and eventual disturbance of soils within the project area. The proposed Caltrans acquisition property (Melody Market) is located at 7300 Lake Earl Drive. The approximate project location is depicted on the Vicinity Map, Figure 1, and Site Plans, Figures 2-1 and 2-2.

1.2 General Objectives

The purpose of the scope of services outlined in TO No. 142 was to evaluate the Site for the presence of petroleum hydrocarbons in soil and groundwater, and to evaluate whether impacts due to aerially deposited lead (ADL) from motor vehicle exhaust exist in the surface and near surface soils within the project boundaries. The investigative results will be used by Caltrans to inform the construction contractor(s) of the concentrations of lead-impacted soil that is present within the project boundaries for construction worker health and safety, soil reuse evaluation and waste management/disposal purposes, and to determine if there are residual petroleum hydrocarbon impacts to groundwater from the underground storage tanks (USTs) that were operated at the Melody Market property.

2.0 BACKGROUND

2.1 Potential Petroleum Hydrocarbon Impacts

The former Melody Market located at 7300 Lake Earl Drive had a documented release of gasoline from former USTs. A very limited subsurface investigation was performed by Lawrence and Associates in December 1997 after the removal of gasoline-contaminated soil at the Melody Market property. According to Caltrans, although the investigation was less than complete, it did appear that there were no total petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, total xylenes (BTEX), or methyl tertiary butyl ether (MTBE) at detectable levels remaining in the excavation after the USTs and contaminated soil were removed.


In June 2009, Geocon advanced three borings (MW-1, B1, and B2) and installed a monitoring well to a maximum depth of 40 feet along South Bank Road approximately 800 feet northeast of Melody Market for the collection of soil and groundwater samples for petroleum hydrocarbon analysis. Soil materials encountered during the excavation of the borings consisted of clayey sand and cobbles. Groundwater was encountered at a depth of 20 feet in borings MW-1 and B1 performed along the shoulder of South Bank Road. This investigation work was related to a release from USTs at the Granite asphalt plant.

2.2 Waste Determination Criteria – Petroleum Hydrocarbons

Currently, regulatory criteria for the classification of wastes based solely on the concentrations of total petroleum hydrocarbons (TPH) such as gasoline, diesel, and motor oil have not yet been promulgated. Disposal of TPH-impacted soil is generally regulated by disposal facility permit and acceptance criteria.

2.3 Potential Lead Soil Impacts

Ongoing testing by Caltrans throughout California has indicated that ADL exists along major freeway routes due to emissions from vehicles powered by leaded gasoline.

2.4 Hazardous Waste Determination Criteria – Lead

Regulatory criteria to classify a waste as “California hazardous” for handling and disposal purposes are contained in the California Code of Regulations (CCR), Title 22, Division 4.5, Chapter 11, Article 3, § 66261.24. Criteria to classify a waste as “Resource, Conservation, and Recovery Act (RCRA) hazardous” are contained in Chapter 40 of the Code of Federal Regulations (40 CFR), Section 261. For waste containing metals, the waste is classified as California hazardous when: 1) the total metal content exceeds the respective Total Threshold Limit Concentration (TTLC); or 2) the soluble metal content exceeds the respective Soluble Threshold Limit Concentration (STLC) based on the standard WET test. A waste may have the potential of exceeding the STLC when the waste’s total metal content is greater than or equal to ten times the respective STLC value, since the WET uses a 1:10 dilution ratio. Hence, when a total metal is detected at a concentration greater than or equal to ten times the respective STLC, and assuming that 100 percent of the total metals are soluble, soluble metal analysis is required. A material is classified as RCRA hazardous, or Federal hazardous, when the soluble metal content exceeds the Federal regulatory level based on the Toxicity Characteristic Leaching Procedure (TCLP). The TTLC value for lead is 1,000 milligrams per kilogram (mg/kg). The STLC and TCLP values for lead are both 5.0 milligrams per liter (mg/l). The above regulatory criteria are based on chemical concentrations. Wastes may also be classified as hazardous based on other criteria such as ignitability and corrosivity; however, for the purposes of this


investigation, toxicity (i.e., lead concentrations) is the primary factor considered for waste classification since waste generated during the construction activities would not likely warrant testing for ignitability or corrosivity. Waste that is classified as either California-hazardous or RCRA-hazardous requires management as a hazardous waste. The Department of Toxic Substances Control (DTSC) regulates and interprets hazardous waste laws in California. DTSC generally considers excavated or transported materials that exhibit “hazardous waste” characteristics to be a “waste” requiring proper management, treatment and disposal. Soil that contains lead above hazardous waste thresholds and is left in-place would not be necessarily classified by DTSC as a “waste.” The DTSC has provided site-specific determinations that “movement of wastes within an area of contamination does not constitute "land disposal" and, thus, does not trigger hazardous waste disposal requirements.” Therefore, lead-impacted soil that is scarified in-place, moisture-conditioned, and recompacted during roadway improvement activities might not be considered a “waste.” DTSC should be consulted to confirm waste classification. It is noted that in addition to DTSC regulations, health and safety requirements and other local agency requirements may also apply to the handling and disposal of lead-impacted soil.

3.0 SCOPE OF SERVICES

The following scope of services was performed as requested by Caltrans in TO No. 142:

3.1 Pre-field Activities

• Conducted a pre-work telephone conference to discuss the TO scope of services. Caltrans representative Steve Werner and Geocon representative Ian Stevenson were on the call. The purpose of the pre-work telephone conference was to discuss the project details.

• Prepared a Health and Safety Plan dated September 9, 2010, to provide guidelines on the use of personal protective equipment and the health and safety procedures implemented during the field activities.

• Obtained a boring permit from County of Del Norte Environmental Health (CDNEH) on September 8, 2010.

• Provided 48-hour notification to Underground Service Alert prior to job site mobilization.

• Retained the services of Advanced Technology Laboratories (ATL) to perform the chemical analyses of soil and groundwater samples.

• Retained the services of Cruz Brothers Locators to locate underground utilities at the Melody Market property.

3.2 Field Activities

On September 8, 2010, we advanced three direct-push borings and 31 hand-auger borings to a maximum depth of 2.0 feet for shallow soil sampling for total lead analysis. We advanced four direct-


push borings to a maximum depth of 30 feet for the collection of soil and grab groundwater samples for total petroleum hydrocarbons analysis. We also collected a groundwater sample from an existing domestic well located approximately 200 feet north of the former UST location at the Melody Market property.

4.0 INVESTIGATIVE METHODS

4.1 Boring Location Rationale

4.1.1 ADL

Borings HA1 through HA17 were located south of Dr. Fine Bridge on the shoulder and embankment slopes of southbound SR-101. Borings HA18 through HA27, DP28 through DP30, and HA31 through HA34 were located north of Dr. Fine Bridge on the shoulder and embankment slopes of southbound SR-101. The approximate soil boring locations are depicted on Figures 2-1 and 2-2.

4.1.2 Petroleum Hydrocarbons

Four deeper soil borings (B1 through B4) were advanced within the Melody Market property south of Dr. Fine Bridge. The approximate soil boring locations are depicted on Figure 2-1. We attempted to obtain the coordinates of each boring location using a differential global positioning system (GPS). However, the GPS unit could not be operated due to a dead battery.

4.2 Aerially Deposited Lead Soil Sampling Procedures

A total of 100 soil samples were collected from 34 borings excavated to a maximum sampling depth of 2.0 feet. The soil samples were collected at general depths of 0.0 to 0.5 foot, 0.5 to 1.0 foot, 1.0 to 2.0 feet. Refusal was encountered in boring HA6 at a depth of 0.5 foot. Soil samples collected using a hand-auger was obtained directly from the hand-auger and transferred to Ziploc® re-sealable plastic bags. The soil samples were field homogenized within the sample bags and subsequently labeled, placed in an ice chest, and delivered to ATL under standard chain-of-custody (COC) documentation. The borings were backfilled with the excess soil cuttings generated at each location. The decontamination water was discharged to the ground surface away from surface water bodies or storm drain inlets.

4.3 Petroleum Hydrocarbon Soil and Groundwater Sampling Procedures

Four petroleum hydrocarbon borings (B1 through B4) were excavated to an approximate maximum sampling depth of 30 feet within the Melody Market property. In consultation with Caltrans, we elected to submit only one soil sample (B1-27) to the laboratory for petroleum hydrocarbon analysis. During the advancement of each direct-push boring, a continuous soil core was collected in cellulose


thermoplastic (acetate) liners fitted inside the push rods. The soil sample submitted for analysis was collected at a general depth interval from 27 to 28 feet. The borings were logged by a California Professional Geologist utilizing the Unified Soil Classification System (USCS). Copies of the boring logs are presented in Appendix A. The soil sample was collected by cutting a section out of the core at the desired interval and sealing the ends of the sample with Teflon™ sheets and plastic end caps. The sample was then labeled, placed in a chilled cooler and submitted to ATL under standard COC documentation. Disturbed soil samples from the soil core were retained in re-sealable plastic bags for field screening with a photo-ionization detector (PID) to qualitatively assess the presence of volatile organic compounds. The PID readings were recorded on the borings logs, which are presented in Appendix A. Groundwater was encountered in borings B1 through B4 at depths between 23 and 25 feet. Grab groundwater samples were obtained from each boring using a Hydropunch method. The Hydropunch sampling rods lined with metal screen were advanced at the desired depth and the screen exposed in the completed borehole, allowing it to fill with water, then collecting a groundwater sample using tubing tipped with a check valve and decanting the collected groundwater into four 40-milliliter volatile organic analysis vials and two one-liter bottles provided by the analytical laboratory. The sample containers were labeled and placed in a chilled cooler and delivered to ATL for laboratory analysis under standard COC documentation. We utilized a Teflon bailer to collect a groundwater sample from the onsite domestic well. The well pump was not operational at the time of the field investigation, and the groundwater sample was collected without purging the well. Total depth and screening interval(s) of this well are not known. Following sample collection, each boring was backfilled from its total depth to the surface with neat cement per the CDNEH permit requirements. A CDNEH representative inspected the grouting of the borings. Drill cuttings generated during the drilling activities were placed in one Department of Transportation-approved 55-gallon drum and temporarily stored at the Geocon office in Rancho Cordova, California. The drum generated from the drilling activities will be transported by KR Environmental for subsequent disposal following regulatory protocol.

4.4 Field Quality Assurance/Quality Control Procedures

Quality assurance/quality control (QA/QC) procedures were performed during the field exploration activities. These procedures included decontamination of sampling equipment before each boring was advanced and providing COC documentation for each sample submitted to the laboratory. The soil and


groundwater sampling equipment was cleansed between each boring by washing the equipment with an Alconox™ solution followed by a double rinse with deionized water. The field sampling activities were performed under the supervision of Geocon's project manager.

4.5 Laboratory Analyses

4.5.1 ADL

One hundred soil samples were collected and submitted to ATL for total lead analysis following United States Environmental Protection Agency (EPA) Test Method 6010B under standard ten-day turn-around-time (TAT). The laboratory was instructed to homogenize the ADL soil samples prior to analysis in accordance with Contract 03A1368 requirements.

4.5.2 Petroleum Hydrocarbons

One soil sample collected from boring B1 and five groundwater samples collected from borings B1 through B4 and a domestic well were analyzed for the following under standard ten-working-day TAT. • Gasoline-range organics (GRO), diesel-range organics (DRO), and motor oil-range organics

(ORO) following EPA Test Method 8015M; and

• Benzene, toluene, ethylbenzene, total xylenes (BTEX), and methyl tert-butyl ether (MTBE) following EPA Test Method 8260B.

4.5.3 Laboratory QA/QC

QA/QC procedures were performed for each method of analysis with specificity for each analyte listed in the test method’s QA/QC. The laboratory QA/QC procedures included the following: • One method blank for every ten samples, batch of samples or type of matrix, whichever was more

frequent.

• One sample analyzed in duplicate for every ten samples, batch of samples or type of matrix, whichever was more frequent.

• One spiked sample for every ten samples, batch of samples or type of matrix, whichever was more frequent, with the spike made at ten times the detection limit or at the analyte level.

Prior to submitting the soil and groundwater samples to the laboratory, the COC documentation was reviewed for accuracy and completeness. Reproductions of the laboratory reports and COC documentation are presented in Appendix B.


5.0 FIELD OBSERVATIONS AND INVESTIGATIVE RESULTS

5.1 Site Conditions

The soil encountered in the ADL borings generally consist of sandy cobbles to a maximum sampling depth of approximately 2.0 feet. Deeper borings for petroleum hydrocarbons testing located within the Melody Market property (B1 through B4) generally consisted of 6 to 8 inches of asphalt concrete and aggregate base. The underlying soil materials consisted of a mix of sand and gravel, with cobbles encountered at depths between 16 and 18 feet, to the maximum drilling depth of approximately 30 feet. Staining or petroleum hydrocarbon-like odors were not observed during the drilling activities, and onsite head space testing conducted during borehole logging found no volatile organic compounds to be present. Groundwater was encountered in the deeper borings at depths between 23.9 and 24.4 feet.

5.2 ADL Analytical Results

Total lead was detected in 65 of the 100 soil samples analyzed at concentrations ranging from 5.0 to 160 mg/kg. Four of the 100 soil samples had reported total lead concentrations greater than 50 mg/kg (i.e., greater than ten times the STLC value for lead of 5.0 mg/l). In consultation with Caltrans, we elected not to further analyze the soil samples for WET soluble lead based on the low total lead data. A summary of the lead analytical results is presented on Table 1. The laboratory reports and COC documentation are presented in Appendix B.

5.3 Petroleum Hydrocarbon Analytical Results

GRO, DRO, ORO, BTEX and MTBE were not detected above the laboratory reporting limit (RL) in the only soil sample (B1-27) collected and analyzed. GRO, BTEX and MTBE were not detected above the laboratory RL for each of the groundwater samples collected from the four borings and one onsite domestic well. DRO was detected in two of the four grab groundwater samples analyzed at concentrations of 0.079 mg/l (B4) and 0.094 mg/l (B1). ORO was detected in the grab groundwater sample from boring B4 at 0.063 mg/l. DRO and ORO were detected in the groundwater sample collected from the domestic well located within the Melody Market property at 0.17 and 0.19 mg/l, respectively. A summary of petroleum hydrocarbon analytical results for soil and groundwater samples are presented in Tables 2 and 3. The laboratory reports and COC documentation are presented in Appendix B.


5.4 Laboratory Quality Assurance/Quality Control

We reviewed the laboratory QA/QC provided with the laboratory reports. The data show acceptable non-detect results for the method blanks. Relative percent differences (RPDs) for EPA Methods 6010 and 8015 (DRO/ORO) were also outside the RPD limit for the duplicate samples. However, the laboratory control sample validated the analytical batch. The data showed acceptable recoveries and RPDs for the remainder of the matrix spikes and duplicates. Based on this limited data review, no additional qualifications of the soil sample data are necessary, and the data are of sufficient quality for the purposes of this report.

5.5 Statistical Evaluation for Lead Detected in Soil Samples

Statistical methods were applied to the total lead data to evaluate the upper confidence limits (UCLs) of the arithmetic means of the total lead concentrations for each sampling depth. The upper one-sided 90% and 95% UCLs of the arithmetic mean are defined as the values that, when calculated repeatedly for randomly drawn subsets of site data, equal or exceed the true mean 90% and 95% of the time, respectively. Statistical confidence limits are the classical tool for addressing uncertainties of a distribution mean. The UCLs of the arithmetic mean concentration are used as the mean concentrations because it is not possible to know the true mean due to the essentially infinite number of soil samples that could be collected from a site. The UCLs therefore account for uncertainties due to limited sampling data. As data become less limited at a site, uncertainties decrease, and the UCLs move closer to the true mean. Non-parametric bootstrap techniques were used to calculate the UCLs. For those samples in which total lead was not detected, a value equal to one-half of the laboratory reporting limit was used in the UCL calculation. The total lead concentrations ranged from less than the laboratory RL of 5.0 mg/kg to 160 mg/kg. The average total lead concentration is 15.6 mg/kg. In consultation with Caltrans, we treated the total lead data for the samples collected from the north and south embankment of Dr. Fine Bridge as one sample population. The calculated UCLs and statistical results are summarized in the table below:


SAMPLE INTERVAL (feet)

90% TOTAL LEAD UCL

(mg/kg)

95% TOTAL LEAD UCL

(mg/kg)

TOTAL LEAD MEAN (mg/kg)

MINIMUM VALUE (mg/kg)

MAXIMUM VALUE (mg/kg)

0.0 to 0.5 15.3 16.0 12.6 2.5 43

0.5 to 1.0 27.2 29.6 19.5 2.5 160

1.0 to 2.0 21.7 23.5 14.9 2.5 150

The bootstrap results are presented in Appendix C.


6.0 CONCLUSIONS AND RECOMMENDATIONS

6.1 ADL

Soil materials excavated to the maximum sampling depth of 2.0 feet or shallower within the project area would not be classified as a California hazardous waste since the calculated 90% and 95% total lead UCLs are less than 50 mg/kg (ten times the STLC value for lead of 5.0 mg/l). Consequently, soil generated from excavations to 2.0 feet or shallower could be reused onsite or disposed of as non-hazardous soil with respect to lead content.

6.2 Petroleum Hydrocarbons in Soil and Groundwater

Gasoline, diesel and motor oil-range petroleum hydrocarbons, BTEX and MTBE were not reported for the only soil sample collected from boring B1 located within the Melody Market property and submitted for laboratory analysis. Obvious indicators of petroleum hydrocarbon impacts (i.e. staining, odors, elevated PID readings) were not observed during the field sampling activities at the locations of borings B1 through B4 within the Melody Market property. Diesel-range petroleum hydrocarbons were reported for the grab groundwater samples collected from borings B1 and B4 located within the Melody Market property at concentrations of 0.094 and 0.079 mg/l, respectively, less than the North Coast Regional Water Quality Control Board (NCRWQCB) Water Quality Objective (WQO) for diesel of 0.1 mg/l. Motor oil-range petroleum hydrocarbons were reported for the grab groundwater sample collected from boring B4 at 0.063 mg/l, less than the NCRWQCB WQO for motor oil of 0.1 mg/l. GRO, BTEX and MTBE were not reported for each of the grab groundwater samples collected from the borings. Diesel and motor oil-range petroleum hydrocarbons were also reported for the groundwater sample collected from the domestic well at relatively low concentrations of 0.17 and 0.19 mg/l, respectively, slightly greater than the NCRWQCB WQO for diesel and motor oil of 0.1 mg/l. In consultation with the NCRWQCB, we directed ATL to evaluate the groundwater samples with reported petroleum hydrocarbon concentrations for the presence of pristane and phytane. According to the NCRWQCB, the presence of pristane and phytane in the samples would indicate that the reported hydrocarbons are man-made substances that have not undergone significant degradation. ATL found that “the samples (tested) do not have any peaks within the region that Pristane and Phytane elutes.” Based on this fact, it appears that the petroleum hydrocarbons reported for grab groundwater samples collected at the Site are either naturally occurring or that degradation of the compounds is nearly complete, and they do not pose a threat to water quality.


We also reviewed the laboratory chromatograms, in consultation with the NCRWQCB, in an effort to determine if the DRO and ORO compounds found in grab water samples collected from the borings is related to those found in the onsite domestic well. That analysis found no relationship between the two compound sets, suggesting that underground tank releases have not impacted the onsite domestic well. Based on the analytical results of the soil and groundwater samples collected at the Melody Market property, significant soil and groundwater impacts were not encountered in the area adjacent to the former UST location. Significant petroleum hydrocarbon-impacted soil, if encountered, would likely trigger further assessment or cleanup directives from regulatory agencies. If petroleum hydrocarbon-impacted soil conditions are encountered during onsite construction excavations, these materials should be isolated, stockpiled and characterized to determine appropriate soil disposal options.

6.3 Melody Market Parcel Purchase

We understand that this completed investigation is part of Caltrans' due diligence prior to the purchase of the Melody Market parcel. In April 1998, the NCRWQCB issued a case closure (Appendix D) for UST petroleum hydrocarbon releases after a soil removal was completed. In our opinion, the impacts found during this investigation are insignificant and will not likely cause the NCRWQCB to reopen the case file. Further cleanup or investigation does not appear to be warranted at this time.

6.4 Worker Protection

Per Caltrans’ requirements, the contractor(s) should prepare a project-specific Lead Compliance Plan (CCR Title 8, Section 1532.1, the “Lead in Construction” standard) to minimize worker exposure to lead-impacted soil. The plan should include protocols for environmental and personnel monitoring, requirements for personal protective equipment, and other health and safety protocols and procedures for the handling of lead-impacted soil.


7.0 REPORT LIMITATIONS

This report has been prepared exclusively for Caltrans. The information contained herein is only valid as of the date of the report and will require an update to reflect additional information obtained. This report is not a comprehensive site characterization and should not be construed as such. The findings as presented in this report are predicated on the results of the limited sampling and laboratory testing performed. In addition, the information obtained is not intended to address potential impacts related to sources other than those specified herein. Therefore, the report should be deemed conclusive with respect to only the information obtained. We make no warranty, express or implied, with respect to the content of this report or any subsequent reports, correspondence or consultation. We strived to perform the services summarized herein in accordance with the local standard of care in the geographic region at the time the services were rendered.

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Figure 1

Del Norte County,California VICINITY MAP

P H O N E 9 1 6 . 8 5 2 . 9 11 8 – FA X 9 1 6 . 8 5 2 . 9 1 3 23 1 6 0 G O L D VA L L E Y D R – S U I T E 8 0 0 – R A N C H O C O R D O VA , C A 9 5 7 4 2

PROJECTSITE

Dr. Fine Bridge / Melody Market

GEOCON Proj. No. S9300-06-142

Task Order No. 142 November 2010

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Approximate Direct-Push Boring Location

Approximate Hand-Auger Boring Location

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Del Norte County,California SITE PLAN

South Bank Road





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Project No. S9300-06-142November 10, 2010Page 1 of 3

EA 01-436400

BORING ID SAMPLE DATE TOTAL LEAD(mg/kg)

HA1-0 9/9/2010 5.0HA1-0.5 9/9/2010 <5.0HA1-1.0 9/9/2010 <5.0

HA2-0 9/9/2010 6.1HA2-0.5 9/9/2010 6.6HA2-1.0 9/9/2010 5.3

HA3-0 9/9/2010 5.4HA3-0.5 9/9/2010 9.7HA3-1.0 9/9/2010 <5.0

HA4-0 9/9/2010 <5.0HA4-0.5 9/9/2010 <5.0HA4-1.0 9/9/2010 <5.0

HA5-0 9/9/2010 5.6HA5-0.5 9/9/2010 <5.0HA5-1.0 9/9/2010 <5.0

HA6-0 9/9/2010 <5.0

HA7-0 9/9/2010 6.3HA7-0.5 9/9/2010 13HA7-1.0 9/9/2010 22

HA8-0 9/9/2010 <5.0HA8-0.5 9/9/2010 <5.0HA8-1.0 9/9/2010 <5.0

HA9-0 9/9/2010 <5.0HA9-0.5 9/9/2010 6.0HA9-1.0 9/9/2010 19

HA10-0 9/9/2010 32HA10-0.5 9/9/2010 27HA10-1.0 9/9/2010 8.1

HA11-0 9/9/2010 <5.0HA11-0.5 9/9/2010 <5.0HA11-1.0 9/9/2010 <5.0

HA12-0 9/9/2010 <5.0HA12-0.5 9/9/2010 5.5HA12-1.0 9/9/2010 <5.0

HA13-0 9/9/2010 <5.0HA13-0.5 9/9/2010 <5.0HA13-1.0 9/9/2010 <5.0

TABLE 1SUMMARY OF SOIL ANALYTICAL RESULTS - TOTAL LEAD

DR. FINE BRIDGE/MELODY MARKET - STATE ROUTE 101 POST MILE 35.8 TO 36.5 DEL NORTE COUNTY, CALIFORNIA


EA 01-436400




HA14-0 9/9/2010 6.4HA14-0.5 9/9/2010 7.6HA14-1.0 9/9/2010 20

HA15-0 9/9/2010 5.2HA15-0.5 9/9/2010 8.8HA15-1.0 9/9/2010 <5.0

HA16-0 9/9/2010 5.6HA16-0.5 9/9/2010 <5.0HA16-1.0 9/9/2010 <5.0

HA17-0 9/9/2010 43HA17-0.5 9/9/2010 37HA17-1.0 9/9/2010 14

HA18-0 9/9/2010 35HA18-0.5 9/9/2010 150HA18-1.0 9/9/2010 150

HA19-0 9/9/2010 35HA19-0.5 9/9/2010 23HA19-1.0 9/9/2010 11

HA20-0 9/9/2010 19HA20-0.5 9/9/2010 17HA20-1.0 9/9/2010 10

HA21-0 9/9/2010 32HA21-0.5 9/9/2010 31HA21-1.0 9/9/2010 30

HA22-0 9/9/2010 31HA22-0.5 9/9/2010 160HA22-1.0 9/9/2010 110

HA23-0 9/9/2010 36HA23-0.5 9/9/2010 14HA23-1.0 9/9/2010 7.6

HA24-0 9/9/2010 24HA24-0.5 9/9/2010 10HA24-1.0 9/9/2010 6.3

HA25-0 9/9/2010 11HA25-0.5 9/9/2010 18HA25-1.0 9/9/2010 <5.0

HA26-0 9/9/2010 16


EA 01-436400




HA26-0.5 9/9/2010 18HA26-1.0 9/9/2010 14

HA27-0 9/9/2010 7.5HA27-0.5 9/9/2010 7.7HA27-1.0 9/9/2010 9.4

DP28-0 9/9/2010 <5.0DP28-0.5 9/9/2010 <5.0DP28-1.0 9/9/2010 <5.0

DP29-0 9/9/2010 <5.0DP29-0.5 9/9/2010 <5.0DP29-1.0 9/9/2010 <5.0

DP30-0 9/9/2010 5.5DP30-0.5 9/9/2010 8.0DP30-1.0 9/9/2010 <5.0

HA31-0 9/9/2010 12HA31-0.5 9/9/2010 7.1HA31-1.0 9/9/2010 6.9

HA32-0 9/9/2010 9.8HA32-0.5 9/9/2010 5.8HA32-1.0 9/9/2010 <5.0

HA33-0 9/9/2010 <5.0HA33-0.5 9/9/2010 22HA33-1.0 9/9/2010 <5.0

HA34-0 9/9/2010 7.3HA34-0.5 9/9/2010 7.6HA34-1.0 9/9/2010 7.3

Notes:

HA1-0 Top of sample depth in feet below ground surface Boring identificationmg/kg = Milligrams per kilogram< = Less than the laboratory reporting limit


EA 01-436400

SAMPLE I.D. SAMPLE DATE GRO DRO ORO BTEX MTBE(mg/kg) (mg/kg) (mg/kg) (µg/kg) (µg/kg)

B1-27 9/8/2010 <1.0 <1.0 <1.0 ND <5.0

Notes: GRO = Gasoline-range organics by EPA Test Method 8015B ModifiedDRO = Diesel-range organics by EPA Test Method 8015B ModifiedORO = Motor oil-range organics by EPA Test Method 8015B ModifiedBTEX = Benzene, toluene, ethylbenzene, and total xylenesMTBE = Methyl tert-butyl ether by EPA Test Method 8260BND = Not detected above the laboratory reporting limitmg/kg = Milligrams per kilogramµg/kg = Micrograms per kilogram< = Less than the laboratory reporting limits

TABLE 2SUMMARY OF SOIL ANALYTICAL RESULTS - PETROLEUM HYDROCARBONS

DR. FINE BRIDGE/MELODY MARKET - STATE ROUTE 101 POST MILE 35.8 TO 36.5DEL NORTE COUNTY, CALIFORNIA


EA 01-436400

SAMPLE I.D. SAMPLE DATE GRO DRO ORO BTEX MTBE(mg/l) (mg/l) (mg/l) (µg/l) (µg/l)

B1 9/8/2010 <0.05 0.094 <0.056 ND <0.50

B2 9/8/2010 <0.05 <0.056 <0.056 ND <0.50

B3 9/8/2010 <0.05 <0.056 <0.056 ND <0.50

B4 9/8/2010 <0.05 0.079 0.063 ND <0.50

Well 9/8/2010 <0.05 0.17 0.19 ND <0.50

Notes: GRO = Gasoline-range organics by EPA Test Method 8015B ModifiedDRO = Diesel-range organics by EPA Test Method 8015B ModifiedORO = Motor oil-range organics by EPA Test Method 8015B ModifiedBTEX = Benzene, toluene, ethylbenzene, and total xylenesMTBE = Methyl tert-butyl ether by EPA Test Method 8260BND = Not detected above the laboratory reporting limitmg/l = Milligrams per literµg/l = Micrograms per liter< = Less than the laboratory reporting limits

TABLE 3SUMMARY OF GROUNDWATER ANALYTICAL RESULTS - PETROLEUM HYDROCARBONS

DR. FINE BRIDGE/MELODY MARKET - STATE ROUTE 101 POST MILE 35.8 TO 36.5DEL NORTE COUNTY, CALIFORNIA

APPENDIX A

APPENDIX B

3275 Walnut Avenue, Signal Hill, CA 90755 Tel: 562. 989.4045 Fax: 562.989.4040

20-Sep-10Date:Advanced Technology Laboratories

Project: Dr. Fine Bridge, S9300-06-142CLIENT: Geocon Consultants, Inc.

Lab Order: 113685CASE NARRATIVE

Analytical Comments for Method 6010

RPD for Duplicate (DUP) is outside criteria for samples 113685-046ADUP and 113685-076ADUP; however, the Laboratory Control Sample (LCS) validated the analytical batch.

Analytical Comments for Method 8015 (DRO/ORO)

RPD for Duplicate (DUP) is outside criteria for sample 113686-160ADUP; however, the Laboratory Control Sample (LCS) validated the analytical batch.

Page 1 of 1

2 of 37


Project: Dr. Fine Bridge, S9300-06-142

Laboratory Results Date DateUnits

CLIENT: Geocon Consultants, Inc. Lab Order: 113685

DF

Advanced Technology Laboratories Date: 9/20/2010

Client SampleID Collected AnalyzedID

Analyte: LeadProject No: Matrix: Soil

Date Received 9/11/2010 8:20:00 AM

LEAD BY ICPEPA 6010B

Analyst: SRB

PQLQC Batch

ANALYTICAL RESULTS

HA1-0 9/9/2010 9/16/2010mg/Kg5.0 66785 1113685-007A 5.0

HA1-0.5 9/9/2010 9/16/2010mg/KgND 66785 1113685-008A 5.0

HA1-1.0 9/9/2010 9/16/2010mg/KgND 66785 1113685-009A 5.0

HA2-0 9/9/2010 9/16/2010mg/Kg6.1 66785 1113685-010A 5.0

HA5-0 9/9/2010 9/16/2010mg/Kg5.6 66785 1113685-011A 5.0

HA5-0.5 9/9/2010 9/16/2010mg/KgND 66785 1113685-012A 5.0

HA5-1.0 9/9/2010 9/16/2010mg/KgND 66785 1113685-013A 5.0

HA2-0.5 9/9/2010 9/16/2010mg/Kg6.6 66785 1113685-014A 5.0

HA2-1.0 9/9/2010 9/16/2010mg/Kg5.3 66785 1113685-015A 5.0

HA3-0 9/9/2010 9/16/2010mg/Kg5.4 66785 1113685-016A 5.0

HA3-0.5 9/9/2010 9/16/2010mg/Kg9.7 66785 1113685-017A 5.0

HA3-1.0 9/9/2010 9/16/2010mg/KgND 66785 1113685-018A 5.0

HA4-0 9/9/2010 9/16/2010mg/KgND 66785 1113685-019A 5.0

HA4-0.5 9/9/2010 9/16/2010mg/KgND 66785 1113685-020A 5.0

HA4-1.0 9/9/2010 9/16/2010mg/KgND 66785 1113685-021A 5.0

HA6-0 9/9/2010 9/16/2010mg/KgND 66785 1113685-022A 5.0

HA7-0 9/9/2010 9/16/2010mg/Kg6.3 66785 1113685-023A 5.0

HA7-0.5 9/9/2010 9/16/2010mg/Kg13 66785 1113685-024A 5.0

Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation rangeH Holding times for preparation or analysis exceeded ND Not Detected at the Reporting LimitS Spike/Surrogate outside of limits due to matrix interference Results are wet unless otherwise specified

DO Surrogate Diluted Out

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Analyst: SRB

PQLQC Batch

ANALYTICAL RESULTS

HA7-1.0 9/9/2010 9/16/2010mg/Kg22 66785 1113685-025A 5.0

HA8-0 9/9/2010 9/16/2010mg/KgND 66785 1113685-026A 5.0

HA8-0.5 9/9/2010 9/16/2010mg/KgND 66786 1113685-027A 5.0

HA8-1.0 9/9/2010 9/16/2010mg/KgND 66786 1113685-028A 5.0

HA9-0 9/9/2010 9/16/2010mg/KgND 66786 1113685-029A 5.0

HA9-0.5 9/9/2010 9/16/2010mg/Kg6.0 66786 1113685-030A 5.0

HA9-1.0 9/9/2010 9/16/2010mg/Kg19 66786 1113685-031A 5.0

HA10-0 9/9/2010 9/16/2010mg/Kg32 66786 1113685-032A 5.0

HA10-0.5 9/9/2010 9/16/2010mg/Kg27 66786 1113685-033A 5.0

HA10-1.0 9/9/2010 9/16/2010mg/Kg8.1 66786 1113685-034A 5.0

HA11-0 9/9/2010 9/16/2010mg/KgND 66786 1113685-035A 5.0

HA11-0.5 9/9/2010 9/16/2010mg/KgND 66786 1113685-036A 5.0

HA17-0 9/9/2010 9/16/2010mg/Kg43 66786 1113685-037A 5.0

HA17-0.5 9/9/2010 9/16/2010mg/Kg37 66786 1113685-038A 5.0

HA17-1.0 9/9/2010 9/16/2010mg/Kg14 66786 1113685-039A 5.0

HA14-0 9/9/2010 9/16/2010mg/Kg6.4 66786 1113685-040A 5.0

HA14-0.5 9/9/2010 9/16/2010mg/Kg7.6 66786 1113685-041A 5.0

HA14-1.0 9/9/2010 9/16/2010mg/Kg20 66786 1113685-042A 5.0



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Analyst: SRB

PQLQC Batch

ANALYTICAL RESULTS

HA13-0 9/9/2010 9/16/2010mg/KgND 66786 1113685-043A 5.0

HA13-0.5 9/9/2010 9/16/2010mg/KgND 66786 1113685-044A 5.0

HA13-1.0 9/9/2010 9/16/2010mg/KgND 66786 1113685-045A 5.0

HA12-0 9/9/2010 9/16/2010mg/KgND 66786 1113685-046A 5.0

HA12-0.5 9/9/2010 9/16/2010mg/Kg5.5 66787 1113685-047A 5.0

HA12-1.0 9/9/2010 9/16/2010mg/KgND 66787 1113685-048A 5.0

HA15-0 9/9/2010 9/16/2010mg/Kg5.2 66787 1113685-049A 5.0

HA15-0.5 9/9/2010 9/16/2010mg/Kg8.8 66787 1113685-050A 5.0

HA15-1.0 9/9/2010 9/16/2010mg/KgND 66787 1113685-051A 5.0

HA16-0 9/9/2010 9/16/2010mg/Kg5.6 66787 1113685-052A 5.0

HA16-0.5 9/9/2010 9/16/2010mg/KgND 66787 1113685-053A 5.0

HA16-1.0 9/9/2010 9/16/2010mg/KgND 66787 1113685-054A 5.0

HA18-0 9/9/2010 9/16/2010mg/Kg35 66787 1113685-055A 5.0

HA18-0.5 9/9/2010 9/16/2010mg/Kg150 66787 1113685-056A 5.0

HA18-1.0 9/9/2010 9/16/2010mg/Kg150 66787 1113685-057A 5.0

HA19-0 9/9/2010 9/16/2010mg/Kg35 66787 1113685-058A 5.0

HA19-0.5 9/9/2010 9/16/2010mg/Kg23 66787 1113685-059A 5.0

HA19-1.0 9/9/2010 9/16/2010mg/Kg11 66787 1113685-060A 5.0



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Analyst: SRB

PQLQC Batch

ANALYTICAL RESULTS

HA20-0 9/9/2010 9/16/2010mg/Kg19 66787 1113685-061A 5.0

HA20-0.5 9/9/2010 9/16/2010mg/Kg17 66787 1113685-062A 5.0

HA20-1.0 9/9/2010 9/16/2010mg/Kg10 66787 1113685-063A 5.0

HA21-0 9/9/2010 9/16/2010mg/Kg32 66787 1113685-064A 5.0

HA21-0.5 9/9/2010 9/16/2010mg/Kg31 66787 1113685-065A 5.0

HA21-1.0 9/9/2010 9/16/2010mg/Kg30 66787 1113685-066A 5.0

HA22-0 9/9/2010 9/16/2010mg/Kg31 66852 1113685-067A 5.0

HA22-0.5 9/9/2010 9/16/2010mg/Kg160 66852 1113685-068A 5.0

HA22-1.0 9/9/2010 9/16/2010mg/Kg110 66852 1113685-069A 5.0

HA23-0 9/9/2010 9/16/2010mg/Kg36 66852 1113685-070A 5.0

HA23-0.5 9/9/2010 9/16/2010mg/Kg14 66852 1113685-071A 5.0

HA23-1.0 9/9/2010 9/16/2010mg/Kg7.6 66852 1113685-072A 5.0

HA24-0 9/9/2010 9/16/2010mg/Kg24 66852 1113685-073A 5.0

HA24-0.5 9/9/2010 9/16/2010mg/Kg10 66852 1113685-074A 5.0

HA24-1.0 9/9/2010 9/16/2010mg/Kg6.3 66852 1113685-075A 5.0

HA25-0 9/9/2010 9/16/2010mg/Kg11 66852 1113685-076A 5.0

HA25-0.5 9/9/2010 9/16/2010mg/Kg18 66852 1113685-077A 5.0

HA25-1.0 9/9/2010 9/16/2010mg/KgND 66852 1113685-078A 5.0



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DF






Analyst: SRB

PQLQC Batch

ANALYTICAL RESULTS

HA26-0 9/9/2010 9/16/2010mg/Kg16 66852 1113685-079A 5.0

HA26-0.5 9/9/2010 9/16/2010mg/Kg18 66852 1113685-080A 5.0

HA26-1.0 9/9/2010 9/16/2010mg/Kg14 66852 1113685-081A 5.0

HA27-0 9/9/2010 9/16/2010mg/Kg7.5 66852 1113685-082A 5.0

HA27-0.5 9/9/2010 9/16/2010mg/Kg7.7 66852 1113685-083A 5.0

HA27-1.0 9/9/2010 9/16/2010mg/Kg9.4 66852 1113685-084A 5.0

DP28-0 9/9/2010 9/16/2010mg/KgND 66852 1113685-085A 5.0

DP28-0.5 9/9/2010 9/16/2010mg/KgND 66852 1113685-086A 5.0

DP28-1.0 9/9/2010 9/17/2010mg/KgND 66908 1113685-087A 5.0

DP29-0 9/9/2010 9/17/2010mg/KgND 66908 1113685-088A 5.0

DP29-0.5 9/9/2010 9/17/2010mg/KgND 66908 1113685-089A 5.0

DP29-1.0 9/9/2010 9/17/2010mg/KgND 66908 1113685-090A 5.0

DP30-0 9/9/2010 9/17/2010mg/Kg5.5 66908 1113685-091A 5.0

DP30-0.5 9/9/2010 9/17/2010mg/Kg8.0 66908 1113685-092A 5.0

DP30-1.0 9/9/2010 9/17/2010mg/KgND 66908 1113685-093A 5.0

HA31-0 9/9/2010 9/17/2010mg/Kg12 66908 1113685-094A 5.0

HA31-0.5 9/9/2010 9/17/2010mg/Kg7.1 66908 1113685-095A 5.0

HA31-1.0 9/9/2010 9/17/2010mg/Kg6.9 66908 1113685-096A 5.0



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DF






Analyst: SRB

PQLQC Batch

ANALYTICAL RESULTS

HA32-0 9/9/2010 9/17/2010mg/Kg9.8 66908 1113685-097A 5.0

HA32-0.5 9/9/2010 9/17/2010mg/Kg5.8 66908 1113685-098A 5.0

HA32-1.0 9/9/2010 9/17/2010mg/KgND 66908 1113685-099A 5.0

HA33-0 9/9/2010 9/17/2010mg/KgND 66908 1113685-100A 5.0

HA33-0.5 9/9/2010 9/17/2010mg/Kg22 66908 1113685-101A 5.0

HA33-1.0 9/9/2010 9/17/2010mg/KgND 66908 1113685-102A 5.0

HA11-1.0 9/9/2010 9/17/2010mg/KgND 66908 1113685-103A 5.0

HA34-0 9/9/2010 9/17/2010mg/Kg7.3 66908 1113685-104A 5.0

HA34-0.5 9/9/2010 9/17/2010mg/Kg7.6 66908 1113685-105A 5.0

HA34-1.0 9/9/2010 9/17/2010mg/Kg7.3 66908 1113685-106A 5.0



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Client Sample ID: B1-27Collection Date: 9/8/2010 11:00:00 AM

Matrix: SOIL

Analyses Result Qual Units Date Analyzed

CLIENT: Geocon Consultants, Inc.Lab Order: 113685

DF

Lab ID: 113685-001

Advanced Technology Laboratories Print Date: 20-Sep-10

PQL

ANALYTICAL RESULTS

DIESEL & MOTOR OIL RANGE ORGANICS BY GC/FIDEPA 8015B(M)

Analyst: CBR

EPA 3550B

RunID: GC16_100919B 66924QC Batch: PrepDate: 9/17/2010

DRO 9/19/2010 12:29 PM1.0 mg/Kg 1NDORO 9/19/2010 12:29 PM1.0 mg/Kg 1ND Surr: p-Terphenyl 9/19/2010 12:29 PM30-128 %REC 181.9

GASOLINE RANGE ORGANICS BY GC/FIDEPA 8015B(M)

Analyst: DDLRunID: GC2_100913A E10VS282QC Batch: PrepDate:

GRO 9/13/2010 02:59 PM1.0 mg/Kg 1ND Surr: Bromofluorobenzene (FID) 9/13/2010 02:59 PM56-137 %REC 1108

VOLATILE ORGANIC COMPOUNDS BY GC/MSEPA 8260B

Analyst: BDRunID: MS4_100917A K10VS246QC Batch: PrepDate:

Benzene 9/17/2010 11:52 AM5.0 µg/Kg 1NDEthylbenzene 9/17/2010 11:52 AM5.0 µg/Kg 1NDm,p-Xylene 9/17/2010 11:52 AM10 µg/Kg 1NDMTBE 9/17/2010 11:52 AM5.0 µg/Kg 1NDo-Xylene 9/17/2010 11:52 AM5.0 µg/Kg 1NDToluene 9/17/2010 11:52 AM5.0 µg/Kg 1ND Surr: 1,2-Dichloroethane-d4 9/17/2010 11:52 AM70-130 %REC 196.5 Surr: 4-Bromofluorobenzene 9/17/2010 11:52 AM70-130 %REC 191.3 Surr: Dibromofluoromethane 9/17/2010 11:52 AM70-130 %REC 197.8 Surr: Toluene-d8 9/17/2010 11:52 AM70-130 %REC 195.6



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Client Sample ID: B1Collection Date: 9/8/2010 11:20:00 AM

Matrix: GROUNDWATER



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Lab ID: 113685-002


PQL

ANALYTICAL RESULTS


Analyst: CBR

EPA 3510C

RunID: GC16_100915E 66848QC Batch: PrepDate: 9/15/2010

DRO 9/16/2010 02:57 AM0.056 mg/L 10.094ORO 9/16/2010 02:57 AM0.056 mg/L 1ND Surr: p-Terphenyl 9/16/2010 02:57 AM36-126 %REC 169.6


Analyst: DDLRunID: GC19_100913A M10VW106QC Batch: PrepDate:

GRO 9/13/2010 01:55 PM0.050 mg/L 1ND Surr: Bromofluorobenzene (FID) 9/13/2010 01:55 PM70-130 %REC 195.3


Analyst: SLLRunID: MS11_100914A A10VW198QC Batch: PrepDate:

Benzene 9/14/2010 12:21 PM0.50 µg/L 1NDEthylbenzene 9/14/2010 12:21 PM0.50 µg/L 1NDm,p-Xylene 9/14/2010 12:21 PM1.0 µg/L 1NDMTBE 9/14/2010 12:21 PM0.50 µg/L 1NDo-Xylene 9/14/2010 12:21 PM0.50 µg/L 1NDToluene 9/14/2010 12:21 PM0.50 µg/L 1ND Surr: 1,2-Dichloroethane-d4 9/14/2010 12:21 PM70-130 %REC 195.5 Surr: 4-Bromofluorobenzene 9/14/2010 12:21 PM70-130 %REC 1102 Surr: Dibromofluoromethane 9/14/2010 12:21 PM70-130 %REC 195.8 Surr: Toluene-d8 9/14/2010 12:21 PM70-130 %REC 1101



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Client Sample ID: B2Collection Date: 9/8/2010 3:00:00 PM

Matrix: GROUNDWATER



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Lab ID: 113685-003


PQL

ANALYTICAL RESULTS


Analyst: CBR

EPA 3510C


DRO 9/16/2010 01:14 AM0.056 mg/L 1NDORO 9/16/2010 01:14 AM0.056 mg/L 1ND Surr: p-Terphenyl 9/16/2010 01:14 AM36-126 %REC 173.3






Benzene 9/14/2010 11:01 AM0.50 µg/L 1NDEthylbenzene 9/14/2010 11:01 AM0.50 µg/L 1NDm,p-Xylene 9/14/2010 11:01 AM1.0 µg/L 1NDMTBE 9/14/2010 11:01 AM0.50 µg/L 1NDo-Xylene 9/14/2010 11:01 AM0.50 µg/L 1NDToluene 9/14/2010 11:01 AM0.50 µg/L 1ND Surr: 1,2-Dichloroethane-d4 9/14/2010 11:01 AM70-130 %REC 192.1 Surr: 4-Bromofluorobenzene 9/14/2010 11:01 AM70-130 %REC 1101 Surr: Dibromofluoromethane 9/14/2010 11:01 AM70-130 %REC 192.2 Surr: Toluene-d8 9/14/2010 11:01 AM70-130 %REC 1100



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Matrix: GROUNDWATER



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Lab ID: 113685-004


PQL

ANALYTICAL RESULTS


Analyst: CBR

EPA 3510C


DRO 9/16/2010 01:23 AM0.056 mg/L 1NDORO 9/16/2010 01:23 AM0.056 mg/L 1ND Surr: p-Terphenyl 9/16/2010 01:23 AM36-126 %REC 165.2









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Matrix: GROUNDWATER



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Lab ID: 113685-005


PQL

ANALYTICAL RESULTS


Analyst: CBR

EPA 3510C


DRO 9/16/2010 01:32 AM0.056 mg/L 10.079ORO 9/16/2010 01:32 AM0.056 mg/L 10.063 Surr: p-Terphenyl 9/16/2010 01:32 AM36-126 %REC 160.3






Benzene 9/14/2010 11:41 AM0.50 µg/L 1NDEthylbenzene 9/14/2010 11:41 AM0.50 µg/L 1NDm,p-Xylene 9/14/2010 11:41 AM1.0 µg/L 1NDMTBE 9/14/2010 11:41 AM0.50 µg/L 1NDo-Xylene 9/14/2010 11:41 AM0.50 µg/L 1NDToluene 9/14/2010 11:41 AM0.50 µg/L 1ND Surr: 1,2-Dichloroethane-d4 9/14/2010 11:41 AM70-130 %REC 191.5 Surr: 4-Bromofluorobenzene 9/14/2010 11:41 AM70-130 %REC 1100 Surr: Dibromofluoromethane 9/14/2010 11:41 AM70-130 %REC 193.8 Surr: Toluene-d8 9/14/2010 11:41 AM70-130 %REC 1102



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Client Sample ID: WellCollection Date: 9/8/2010 5:30:00 PM

Matrix: GROUNDWATER



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Lab ID: 113685-006


PQL

ANALYTICAL RESULTS


Analyst: CBR

EPA 3510C


DRO 9/16/2010 03:06 AM0.056 mg/L 10.17ORO 9/16/2010 03:06 AM0.056 mg/L 10.19 Surr: p-Terphenyl 9/16/2010 03:06 AM36-126 %REC 192.7









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20-Sep-10Date:Advanced Technology Laboratories


CLIENT: Geocon Consultants, Inc.Work Order: 113685

ANALYTICAL QC SUMMARY REPORTTestCode: 6010_SPB

Sample ID: MB-66785A

Batch ID: 66785 TestNo: EPA 6010B Analysis Date: 9/16/2010

Prep Date: 9/16/2010

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125040

SeqNo: 2010437

MBLKSampType: TestCode: 6010_SPB

EPA 3050M

Lead 5.00.200

Sample ID: LCS-66785




Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 125040

SeqNo: 2010438

LCSSampType: TestCode: 6010_SPB

EPA 3050M

Lead 250.0 112 80 1205.0 0.2000280.885

Sample ID: 113685-016A-DUP




Units: mg/Kg

PQL

Client ID: HA3-0

RunNo: 125040

SeqNo: 2010449

DUPSampType: TestCode: 6010_SPB

EPA 3050M

Lead 205.0 5.388 04.921

Sample ID: 113685-016A-MS




Units: mg/Kg

PQL

Client ID: HA3-0

RunNo: 125040

SeqNo: 2010450

MSSampType: TestCode: 6010_SPB

EPA 3050M

Lead 250.0 85.9 34 1265.0 5.388220.263

Sample ID: MB-66785B




Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125040

SeqNo: 2010451


EPA 3050M

Lead 5.0ND

Qualifiers: B Analyte detected in the associated Method Blank E Value above quantitation range H Holding times for preparation or analysis exceeded

ND Not Detected at the Reporting Limit R RPD outside accepted recovery limits S Spike/Surrogate outside of limits due to matrix interferenceDO Surrogate Diluted Out Calculations are based on raw values

15 of 37









Units: mg/Kg

PQL

Client ID: HA8-0

RunNo: 125040

SeqNo: 2010462


EPA 3050M

Lead 205.0 4.645 04.773





Units: mg/Kg

PQL

Client ID: HA8-0

RunNo: 125040

SeqNo: 2010463


EPA 3050M

Lead 250.0 88.4 34 1265.0 4.645225.529

Sample ID: 113685-026A-MSD




Units: mg/Kg

PQL

Client ID: HA8-0

RunNo: 125040

SeqNo: 2010464

MSDSampType: TestCode: 6010_SPB

EPA 3050M

Lead 250.0 94.1 34 126 205.0 4.645 225.5 6.15239.831



16 of 37









Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125041

SeqNo: 2010465


EPA 3050M

Lead 5.0ND





Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 125041

SeqNo: 2010466


EPA 3050M

Lead 250.0 117 80 1205.0 0292.069





Units: mg/Kg

PQL

Client ID: HA11-0.5

RunNo: 125041

SeqNo: 2010477


EPA 3050M

Lead 205.0 3.689 03.393





Units: mg/Kg

PQL

Client ID: HA11-0.5

RunNo: 125041

SeqNo: 2010478


EPA 3050M

Lead 250.0 84.2 34 1265.0 3.689214.298





Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125041

SeqNo: 2010479


EPA 3050M

Lead 5.0ND



17 of 37









Units: mg/Kg

PQL

Client ID: HA12-0

RunNo: 125041

SeqNo: 2010490


EPA 3050M

Lead 20 R5.0 3.710 30.95.064





Units: mg/Kg

PQL

Client ID: HA12-0

RunNo: 125041

SeqNo: 2010491


EPA 3050M

Lead 250.0 81.9 34 1265.0 3.710208.580





Units: mg/Kg

PQL

Client ID: HA12-0

RunNo: 125041

SeqNo: 2010492


EPA 3050M

Lead 250.0 82.9 34 126 205.0 3.710 208.6 1.17211.038



18 of 37









Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125042

SeqNo: 2010493


EPA 3050M

Lead 5.0ND





Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 125042

SeqNo: 2010494


EPA 3050M

Lead 250.0 115 80 1205.0 0288.494





Units: mg/Kg

PQL

Client ID: HA18-0.5

RunNo: 125042

SeqNo: 2010505


EPA 3050M

Lead 205.0 146.1 10.8162.734





Units: mg/Kg

PQL

Client ID: HA18-0.5

RunNo: 125042

SeqNo: 2010506


EPA 3050M

Lead 250.0 92.9 34 1265.0 146.1378.274





Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125042

SeqNo: 2010507


EPA 3050M

Lead 5.0ND



19 of 37









Units: mg/Kg

PQL

Client ID: HA21-1.0

RunNo: 125042

SeqNo: 2010518


EPA 3050M

Lead 205.0 29.86 0.86629.598





Units: mg/Kg

PQL

Client ID: HA21-1.0

RunNo: 125042

SeqNo: 2010519


EPA 3050M

Lead 250.0 88.0 34 1265.0 29.86249.763





Units: mg/Kg

PQL

Client ID: HA21-1.0

RunNo: 125042

SeqNo: 2010520


EPA 3050M

Lead 250.0 79.1 34 126 205.0 29.86 249.8 9.28227.612



20 of 37









Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125043

SeqNo: 2010522


EPA 3050M

Lead 5.0ND





Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 125043

SeqNo: 2010523


EPA 3050M

Lead 250.0 114 80 1205.0 0285.811





Units: mg/Kg

PQL

Client ID: HA25-0

RunNo: 125043

SeqNo: 2010534


EPA 3050M

Lead 20 R5.0 10.93 30.314.840





Units: mg/Kg

PQL

Client ID: HA25-0

RunNo: 125043

SeqNo: 2010535


EPA 3050M

Lead 250.0 74.5 34 1265.0 10.93197.291





Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125043

SeqNo: 2010536


EPA 3050M

Lead 5.0ND



21 of 37









Units: mg/Kg

PQL

Client ID: DP28-0.5

RunNo: 125043

SeqNo: 2010547


EPA 3050M

Lead 205.0 1.884 04.705





Units: mg/Kg

PQL

Client ID: DP28-0.5

RunNo: 125043

SeqNo: 2010548


EPA 3050M

Lead 250.0 87.0 34 1265.0 1.884219.321





Units: mg/Kg

PQL

Client ID: DP28-0.5

RunNo: 125043

SeqNo: 2010549


EPA 3050M

Lead 250.0 88.4 34 126 205.0 1.884 219.3 1.62222.893



22 of 37









Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125085

SeqNo: 2011315


EPA 3050M

Lead 5.00.138





Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 125085

SeqNo: 2011316


EPA 3050M

Lead 250.0 116 80 1205.0 0.1383289.376





Units: mg/Kg

PQL

Client ID: HA31-1.0

RunNo: 125085

SeqNo: 2011327


EPA 3050M

Lead 205.0 6.888 3.357.122





Units: mg/Kg

PQL

Client ID: HA31-1.0

RunNo: 125085

SeqNo: 2011328


EPA 3050M

Lead 250.0 88.4 34 1265.0 6.888227.977





Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125085

SeqNo: 2011329


EPA 3050M

Lead 5.0ND



23 of 37









Units: mg/Kg

PQL

Client ID: HA34-1.0

RunNo: 125085

SeqNo: 2011340


EPA 3050M

Lead 205.0 7.264 16.18.532





Units: mg/Kg

PQL

Client ID: HA34-1.0

RunNo: 125085

SeqNo: 2011341


EPA 3050M

Lead 250.0 81.6 34 1265.0 7.264211.177





Units: mg/Kg

PQL

Client ID: HA34-1.0

RunNo: 125085

SeqNo: 2011342


EPA 3050M

Lead 250.0 80.4 34 126 205.0 7.264 211.2 1.38208.281



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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_S_DM LL

Sample ID: MB-66924

Batch ID: 66924 TestNo: EPA 8015B(M Analysis Date: 9/19/2010



Units: mg/Kg

PQL

Client ID: PBS

RunNo: 125103

SeqNo: 2011784

MBLKSampType: TestCode: 8015_S_DM L

EPA 3550B

DRO 1.0NDORO 1.0ND Surr: p-Terphenyl 2.670 87.6 30 1282.339





Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 125103

SeqNo: 2011785

LCSSampType: TestCode: 8015_S_DM L

EPA 3550B

DRO 33.00 86.0 35 1181.0 028.367 Surr: p-Terphenyl 2.670 96.5 30 1282.576

Sample ID: 113686-160ADUP




Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 125103

SeqNo: 2011790

DUPSampType: TestCode: 8015_S_DM L

EPA 3550B

DRO 20 R1.0 0 2003.501ORO 20 R1.0 2.577 1169.760 Surr: p-Terphenyl 2.670 74.6 30 128 001.992

Sample ID: 113686-160AMS




Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 125103

SeqNo: 2011791

MSSampType: TestCode: 8015_S_DM L

EPA 3550B




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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_S_DM LL

Sample ID: 113686-160AMSD




Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 125103

SeqNo: 2011792

MSDSampType: TestCode: 8015_S_DM L

EPA 3550B

DRO 33.00 74.9 25 129 201.0 0 24.98 1.0424.719 Surr: p-Terphenyl 2.670 108 30 128 002.872



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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_S_GAS

Sample ID: E100913LCS1

Batch ID: E10VS282 TestNo: EPA 8015B(M Analysis Date: 9/13/2010

Prep Date:


Units: mg/Kg

PQL

Client ID: LCSS

RunNo: 124940

SeqNo: 2008539

LCSSampType: TestCode: 8015_S_GAS

GRO 5.000 101 70 1301.0 05.053 Surr: Bromofluorobenzene (FID) 100.0 107 56 137107.363

Sample ID: E100913MB1


Prep Date:


Units: mg/Kg

PQL

Client ID: PBS

RunNo: 124940

SeqNo: 2008541

MBLKSampType: TestCode: 8015_S_GAS

GRO 1.0ND Surr: Bromofluorobenzene (FID) 100.0 93.1 56 13793.061



Prep Date:


Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 124940

SeqNo: 2008551

DUPSampType: TestCode: 8015_S_GAS

GRO 201.0 0 0ND Surr: Bromofluorobenzene (FID) 100.0 97.0 56 137 0096.963

Sample ID: 113671-001AMS


Prep Date:


Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 124940

SeqNo: 2008553

MSSampType: TestCode: 8015_S_GAS

GRO 5.000 101 40 1211.0 05.063 Surr: Bromofluorobenzene (FID) 100.0 126 56 137125.640



Prep Date:


Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 124940

SeqNo: 2008554

MSDSampType: TestCode: 8015_S_GAS

GRO 5.000 98.4 40 121 201.0 0 5.063 2.864.920



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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_S_GAS



Prep Date:


Units: mg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 124940

SeqNo: 2008554

MSDSampType: TestCode: 8015_S_GAS

Surr: Bromofluorobenzene (FID) 100.0 118 56 137 00118.420



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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_W_DM_LL

Sample ID: MB-66848




Units: mg/L

PQL

Client ID: PBW

RunNo: 125026

SeqNo: 2010203

MBLKSampType: TestCode: 8015_W_DM_

EPA 3510C

DRO 0.050NDORO 0.050ND Surr: p-Terphenyl 0.08000 83.2 36 1260.067





Units: mg/L

PQL

Client ID: LCSW

RunNo: 125026

SeqNo: 2010204

LCSSampType: TestCode: 8015_W_DM_

EPA 3510C


Sample ID: MB-66848MS




Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 125026

SeqNo: 2010205

MSSampType: TestCode: 8015_W_DM_

EPA 3510C


Sample ID: MB-66848MSD




Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 125026

SeqNo: 2010206

MSDSampType: TestCode: 8015_W_DM_

EPA 3510C

DRO 1.000 87.8 52 128 200.050 0 0.8690 1.060.878 Surr: p-Terphenyl 0.08000 84.3 36 126 000.067



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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_W_GP LL

Sample ID: M100913LCS2

Batch ID: M10VW106 TestNo: EPA 8015B(M Analysis Date: 9/13/2010

Prep Date:


Units: mg/L

PQL

Client ID: LCSW

RunNo: 124921

SeqNo: 2008353

LCSSampType: TestCode: 8015_W_GP

GRO 1.000 92.5 70 1300.050 00.925 Surr: Bromofluorobenzene (FID) 100.0 99.5 70 13099.462

Sample ID: M100913MB1MS


Prep Date:


Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 124921

SeqNo: 2008354

MSSampType: TestCode: 8015_W_GP

GRO 1.000 92.8 70 1300.050 00.928 Surr: Bromofluorobenzene (FID) 100.0 100 70 13099.994

Sample ID: M100913MB1MSD


Prep Date:


Units: mg/L

PQL

Client ID: ZZZZZZ

RunNo: 124921

SeqNo: 2008355

MSDSampType: TestCode: 8015_W_GP

GRO 1.000 91.4 70 130 200.050 0 0.9280 1.520.914 Surr: Bromofluorobenzene (FID) 100.0 100 70 130 00100.242

Sample ID: M100913MB1


Prep Date:


Units: mg/L

PQL

Client ID: PBW

RunNo: 124921

SeqNo: 2008356

MBLKSampType: TestCode: 8015_W_GP

GRO 0.050ND Surr: Bromofluorobenzene (FID) 100.0 97.0 70 13096.987

Sample ID: 113685-002BDUP


Prep Date:


Units: mg/L

PQL

Client ID: B1

RunNo: 124921

SeqNo: 2008358

DUPSampType: TestCode: 8015_W_GP

GRO 200.050 0 0ND



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ANALYTICAL QC SUMMARY REPORTTestCode: 8015_W_GP LL

Sample ID: 113685-002BDUP


Prep Date:


Units: mg/L

PQL

Client ID: B1

RunNo: 124921

SeqNo: 2008358

DUPSampType: TestCode: 8015_W_GP

Surr: Bromofluorobenzene (FID) 100.0 98.2 70 130 0098.193



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ANALYTICAL QC SUMMARY REPORTTestCode: 8260_S

Sample ID: K100917LCS1

Batch ID: K10VS246 TestNo: EPA 8260B Analysis Date: 9/17/2010

Prep Date:


Units: µg/Kg

PQL

Client ID: LCSS

RunNo: 125076

SeqNo: 2011179

LCSSampType: TestCode: 8260_S

1,1-Dichloroethene 50.00 89.3 70 1305.0 044.670Benzene 100.0 94.4 70 1305.0 094.350Chlorobenzene 50.00 93.1 82 1305.0 046.570MTBE 50.00 97.7 70 1305.0 048.850Toluene 100.0 96.8 70 1305.0 096.840Trichloroethene 50.00 86.8 77 1305.0 043.420 Surr: 1,2-Dichloroethane-d4 50.00 91.7 70 13045.850 Surr: 4-Bromofluorobenzene 50.00 95.9 70 13047.960 Surr: Dibromofluoromethane 50.00 90.4 70 13045.180 Surr: Toluene-d8 50.00 93.6 70 13046.800

Sample ID: K100917MB2MS


Prep Date:


Units: µg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 125076

SeqNo: 2011180

MSSampType: TestCode: 8260_S

Benzene 100.0 99.9 70 1305.0 099.880MTBE 50.00 103 70 1305.0 051.630Toluene 100.0 101 70 1305.0 0101.200 Surr: 1,2-Dichloroethane-d4 50.00 90.1 70 13045.050 Surr: 4-Bromofluorobenzene 50.00 92.5 70 13046.260 Surr: Dibromofluoromethane 50.00 91.1 70 13045.530 Surr: Toluene-d8 50.00 92.4 70 13046.190

Sample ID: K100917MB2MSD


Prep Date:


Units: µg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 125076

SeqNo: 2011181

MSDSampType: TestCode: 8260_S

Benzene 100.0 104 70 130 205.0 0 99.88 3.58103.520MTBE 50.00 107 70 130 205.0 0 51.63 3.3553.390Toluene 100.0 106 70 130 205.0 0 101.2 4.47105.830



32 of 37





Sample ID: K100917MB2MSD


Prep Date:


Units: µg/Kg

PQL

Client ID: ZZZZZZ

RunNo: 125076

SeqNo: 2011181

MSDSampType: TestCode: 8260_S

Surr: 1,2-Dichloroethane-d4 50.00 90.1 70 130 0045.040 Surr: 4-Bromofluorobenzene 50.00 95.2 70 130 0047.600 Surr: Dibromofluoromethane 50.00 92.1 70 130 0046.070 Surr: Toluene-d8 50.00 94.3 70 130 0047.160

Sample ID: K100917MB2


Prep Date:


Units: µg/Kg

PQL

Client ID: PBS

RunNo: 125076

SeqNo: 2011182

MBLKSampType: TestCode: 8260_S

Benzene 5.0NDEthylbenzene 5.0NDm,p-Xylene 10NDMTBE 5.0NDo-Xylene 5.0NDToluene 5.0ND Surr: 1,2-Dichloroethane-d4 50.00 90.9 70 13045.430 Surr: 4-Bromofluorobenzene 50.00 89.1 70 13044.550 Surr: Dibromofluoromethane 50.00 93.2 70 13046.610 Surr: Toluene-d8 50.00 95.2 70 13047.590



Prep Date:


Units: µg/Kg

PQL

Client ID: B1-27

RunNo: 125076

SeqNo: 2011186

DUPSampType: TestCode: 8260_S

Benzene 205.0 0 0NDEthylbenzene 205.0 0 0NDm,p-Xylene 2010 0 0NDMTBE 205.0 0 0NDo-Xylene 205.0 0 0NDToluene 205.0 0 0ND



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Prep Date:


Units: µg/Kg

PQL

Client ID: B1-27

RunNo: 125076

SeqNo: 2011186

DUPSampType: TestCode: 8260_S

Surr: 1,2-Dichloroethane-d4 50.00 99.1 70 130 20049.530 Surr: 4-Bromofluorobenzene 50.00 93.1 70 130 20046.550 Surr: Dibromofluoromethane 50.00 101 70 130 20050.280 Surr: Toluene-d8 50.00 97.4 70 130 20048.690



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ANALYTICAL QC SUMMARY REPORTTestCode: 8260_WP_LL

Sample ID: A10914LCS1

Batch ID: A10VW198 TestNo: EPA 8260B Analysis Date: 9/14/2010

Prep Date:


Units: µg/L

PQL

Client ID: LCSW

RunNo: 125003

SeqNo: 2009638

LCSSampType: TestCode: 8260_WP_LL

1,1-Dichloroethene 20.00 104 70 1300.50 020.880Benzene 40.00 99.2 70 1300.50 039.680Chlorobenzene 20.00 99.7 70 1300.50 019.940MTBE 20.00 111 70 1300.50 022.130Toluene 40.00 103 70 1300.50 041.310Trichloroethene 20.00 93.7 70 1300.50 018.740 Surr: 1,2-Dichloroethane-d4 25.00 90.7 70 13022.680 Surr: 4-Bromofluorobenzene 25.00 99.5 70 13024.870 Surr: Dibromofluoromethane 25.00 85.6 70 13021.410 Surr: Toluene-d8 25.00 99.8 70 13024.960

Sample ID: A10914MB2MS


Prep Date:


Units: µg/L

PQL

Client ID: ZZZZZZ

RunNo: 125003

SeqNo: 2009639

MSSampType: TestCode: 8260_WP_LL

Benzene 40.00 98.3 70 1300.50 039.320MTBE 20.00 111 70 1300.50 022.200Toluene 40.00 104 70 1300.50 041.450 Surr: 1,2-Dichloroethane-d4 25.00 90.0 70 13022.510 Surr: 4-Bromofluorobenzene 25.00 95.8 70 13023.940 Surr: Dibromofluoromethane 25.00 90.2 70 13022.540 Surr: Toluene-d8 25.00 101 70 13025.130

Sample ID: A10914MB2MSD


Prep Date:


Units: µg/L

PQL

Client ID: ZZZZZZ

RunNo: 125003

SeqNo: 2009640

MSDSampType: TestCode: 8260_WP_LL

Benzene 40.00 99.5 70 130 200.50 0 39.32 1.2139.800MTBE 20.00 109 70 130 200.50 0 22.20 1.4521.880Toluene 40.00 105 70 130 200.50 0 41.45 1.0641.890



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Sample ID: A10914MB2MSD


Prep Date:


Units: µg/L

PQL

Client ID: ZZZZZZ

RunNo: 125003

SeqNo: 2009640

MSDSampType: TestCode: 8260_WP_LL

Surr: 1,2-Dichloroethane-d4 25.00 89.1 70 130 0022.270 Surr: 4-Bromofluorobenzene 25.00 98.5 70 130 0024.630 Surr: Dibromofluoromethane 25.00 85.2 70 130 0021.290 Surr: Toluene-d8 25.00 102 70 130 0025.410

Sample ID: A10914MB2


Prep Date:


Units: µg/L

PQL

Client ID: PBW

RunNo: 125003

SeqNo: 2009641

MBLKSampType: TestCode: 8260_WP_LL

Benzene 0.50NDEthylbenzene 0.50NDm,p-Xylene 1.0NDMTBE 0.50NDo-Xylene 0.50NDToluene 0.50ND Surr: 1,2-Dichloroethane-d4 25.00 87.5 70 13021.870 Surr: 4-Bromofluorobenzene 25.00 97.4 70 13024.350 Surr: Dibromofluoromethane 25.00 89.2 70 13022.290 Surr: Toluene-d8 25.00 98.8 70 13024.710

Sample ID: 113685-003A


Prep Date:


Units: µg/L

PQL

Client ID: B2

RunNo: 125003

SeqNo: 2009645

DUPSampType: TestCode: 8260_WP_LL

Benzene 200.50 0 0NDEthylbenzene 200.50 0 0NDm,p-Xylene 201.0 0 0NDMTBE 200.50 0 0NDo-Xylene 200.50 0 0NDToluene 200.50 0.2300 0ND



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Sample ID: 113685-003A


Prep Date:


Units: µg/L

PQL

Client ID: B2

RunNo: 125003

SeqNo: 2009645

DUPSampType: TestCode: 8260_WP_LL

Surr: 1,2-Dichloroethane-d4 25.00 90.8 70 130 20022.710 Surr: 4-Bromofluorobenzene 25.00 102 70 130 20025.470 Surr: Dibromofluoromethane 25.00 92.9 70 130 20023.220 Surr: Toluene-d8 25.00 100 70 130 20025.050



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APPENDIX C

APPENDIX D

PRELIMINARY SITE INVESTIGATION REPORT - … of Soil Analytical Results – Petroleum Hydrocarbons...

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