Appendices_Final_Oaks_Arm_Sediment_Investigation_Report-Appendices-March_2009.pdf

Appendix A Select Photographic Documentation

APPENDIX A

Vibracoring Photograph VC1: Vibracore barge on lake setting up for sample collection.

Photograph VC2: Lowering vibracore head and 4-inch-diameter aluminum core barrel to lake bottom at SI-12.

RDD/081190030 (CLR3894.DOC) A-1

Photograph VC3: Lowering vibracore head and core barrel through moon pool at SI-5.

Photograph VC4: “Finger-style” (top left) and “hinged-style” (bottom right) core catchers.

A-2 RDD/081190030 (CLR3894.DOC)

Photograph VC5: Extruding sediment-filled flexible polyethylene liner from core barrel at SI-11.

Photograph VC6: Transporting extruded core sample at SI-4 to onshore processing station.

RDD/081190030 (CLR3894.DOC) A-3

Photograph VC7: Lowering vibracore head and core barrel to lake bottom at TS-C2 for 1-foot-long core (capping treatability study).

Photograph VC8: Decanting water from top of 1-foot-long core in rigid acetate liner at TS-C2 (capping treatability study).

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Photograph VC9: Capped and taped 1-foot-long core at TS-C1 (same location as MI04) (capping treatability study).

Photograph VC10: Capped and taped 2-foot-long core at SI-51 packed with moist paper (geotechnical testing core).

RDD/081190030 (CLR3894.DOC) A-5

Van Veen Sampler Photograph VV1: Van Veen sampler before deployment.

Photograph VV2: Van Veen sampler being deployed with jaws open (ready to trigger on the lake bed).

A-6 RDD/081190030 (CLR3894.DOC)

Photograph VV3: Van Veen sampler full with surface sediment at Location SI-30.

Photograph VV4: Van Veen sampler with rock in jaws at Location SI-21.

RDD/081190030 (CLR3894.DOC) A-7

Pipe Dredge Sampler Photograph PP1: Pipe dredge sampler before deployment (12-inch-diameter, 18-inch-deep).

Photograph PP2: Pipe dredge sampler retrieved with rocks and clear water at SI-21.

A-8 RDD/081190030 (CLR3894.DOC)

Underwater Beach Samples using Disposable Scoops Photograph BS1: Positioning at nearshore beach sample at SI-56 (water depth of 4 inches).

Photograph BS2: Sample collection with disposable scoop at SI-52 (water depth of 6 inches).

RDD/081190030 (CLR3894.DOC) A-9

Hand Auger Samples Photograph HA1: Stainless steel hand auger (3-inch-diameter, 6-inch-deep).

Photograph HA2: Hand auger sample collected at SI-40 (three 1-foot intervals).

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Select Sediment Core Photographs Photograph SC1: Core SI-04 at 7.5- to 8.5-foot interval showing well-graded gravel with silt.

Photograph SC2: Core SI-04 at 6- to 7-foot interval of showing poorly graded sand.

RDD/081190030 (CLR3894.DOC) A-11

Photograph SC3: Top of Core SI-09 showing well-graded sand (surface to 3-foot interval).

Photograph SC4: Core SI-13 at 0.5- to 3-foot interval of showing (organic rich) clay.

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Photograph SC5: Full length (surface to 3.25-foot interval) of Core SI-15 showing silty sand.

Photograph SC6: Full length (surface to 3-foot interval) of Core SI-16 showing clay.

RDD/081190030 (CLR3894.DOC) A-13

Photograph SC7: Top of Core TS-D1 (same location as MI04) showing well-graded sand (surface to 3-foot interval).

Photograph SC8: Top of Core TS-D3 (same location as MI-14) showing silt with “gelatinous” consistency (surface to 2.5-foot interval).

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Appendix B Data Quality Evaluation Reports

APPENDIX B

CH2M HILL Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine

B.1 Introduction The objective of this data quality summary (DQS) is to assess the data quality of analytical results for sediment samples collected from October 16, 2007, through October 25, 2007, for the Sulphur Bank Mercury Mine Oaks Arm sediment investigation (2007 investigation).

Sediment and water samples were collected and analyzed to fill data gaps identified after the September 2005 mine waste and pore water investigation (CH2M HILL, 2007).

This DQS presents the results of the quality assurance/quality control activities prescribed in the Quality Assurance Project Plan for Sulphur Bank Mercury Mine Superfund Site (QAPP) (CH2M HILL, 2005a). The QAPP presents specific policies, organization, functions, and quality assurance/quality control activities associated with the analytical data generation and assessment that were designed to achieve data quality objectives (DQO) for the Oaks Arm sediment investigation. The QAPP provides a comprehensive guidance for obtaining analytical data of known quality.

The U.S. Environmental Protection Agency (EPA) performed validation of the chemical data from Chemtech Consulting Group in Mountainside, New Jersey. ICF Consulting/ Laboratory Data Consultants (ICF) in Richmond Virginia, performed validation of the data from Brooks Rand, LLC in Seattle, Washington, and Columbia Analytical Services in Kelso, Washington. CH2M HILL performed a combination Tier 1B and Tier 3 review of the data from the EPA Region 9 Laboratory located in Richmond, California, as required by the QAPP. All validation flags and final results were entered into the project database by

CH2M HILL.

Physical analyses using American Society for Testing and Materials methods were performed on sediment samples by Vector Engineering in Grass Valley, California. These geotechnical data were not provided in electronic form and were not validated. No review of the physical data is provided in this DQS.

This DQS is a general data quality assessment designed to summarize data issues resulting from the CH2M HILL validation review of the EPA Region 9 Laboratory data. The following sections present the findings of CH2M HILL’s validation. Detailed results of EPA and ICF validations are presented in Attachment B1.

Because the maximum mercury concentrations in sediment from the September 2005 mine waste and pore water investigation (CH2M HILL, 2006) were significantly higher than the maximum mercury concentrations from the 2007 investigation (even for similar sampling locations, as discussed in Appendix B, Attachment B1 of the 2007 investigation report

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APPENDIX B 0BCH2M HILL OAKS ARM SEDIMENT INVESTIGATION DATA QUALITY SUMMARY, SULPHUR BANK MERCURY MINE

[CH2M HILL, 2008]), further review of this mercury data was performed. The review is included in Attachment B2.

B.2 Analytical Data Eighty native environmental sediment samples, 11 field duplicate (FD) sediment samples, and 2 native environmental surface water samples were collected for analysis by the EPA Region 9 Laboratory. The samples were divided into six sample delivery groups (SDG) by the laboratory. Eight methods were used to analyze the environmental samples. Samples were collected and shipped by overnight carrier or courier to the laboratory for analysis.

Selected samples were analyzed for one or more of the following analytes/methods:

• Total dissolved solids using Method EPA160.1

• Total suspended solids using Method EPA160.2

• Anions using Method E300

• Ammonia using Method E350.1

• Total Kjeldahl nitrogen using Method E351.2

• Total organic carbon (TOC) using Method E415.3 or E440.0

• Alkalinity using Method SM2320

Analytical performance was initially assessed on an SDG or analytical batch basis. The following tables summarize data validation reports by SDG and method. Several SDGs may be associated with the same laboratory quality control (QC) samples. The association of laboratory QC samples and normal environmental samples from the same analytical batches can be determined by the laboratory lot control number. Each data package was reviewed for the following:

• Chain-of-custody (CoC) documentation

• Holding-time compliance

• Required QC samples at the specified frequencies

• Method blanks

• Laboratory control samples

• Analytical spike data

• Matrix spike/matrix spike duplicate (MS/MSD) samples on a site/location basis

• Initial and continuing calibration information

• Other method-specific criteria defined by the QAPP

Field samples were also reviewed to ascertain field compliance and data quality issues. This included a review of equipment blanks and FDs.

Data flags were assigned in accordance with the QAPP, using the QC acceptance limits as defined therein. Data flags, and the reason for each flag were entered into an electronic database and are available to data users. A final validation flag was applied to data after evaluating all flags entered into the database and selecting the most conservative of the flags, as defined in the QAPP.

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APPENDIX B 0BCH2M HILL OAKS ARM SEDIMENT INVESTIGATION DATA QUALITY SUMMARY, SULPHUR BANK MERCURY MINE

The data flags listed in the QAPP are defined as follows:

• J = Analyte was identified, but the quantitation is estimated.

• R = The data are unusable because of deficiencies in the ability to analyze the sample and meet QC criteria.

• U = Analyte was not detected.

• UJ = Analyte was analyzed for but not detected; the quantitation is estimated.

In addition, the following flags, which have no QC implications and are not listed in the QAPP, were used:

• Exclude = Data not used; more appropriate data exist for this analyte.

• None = A flag is not applied; this placeholder is for calculating QC criteria issues without flagging.

An assessment of data quality for the CH2M HILL-validated methods is summarized below.

The overall summaries of data validation findings are contained in Tables B-1 through B-10 (tables are located at the end of this appendix) and summarized in the method sections that follow. Both the method sections and the summary tables contain only the instances where QC criteria exceedances impact data qualification (resulting in a validation flag being added to the data).

The following list describes each table in this DQS.

• Table B-1: Overall Flagging Summary. This table presents the number of occurrences for each data validation reason by method.

• Table B-2: Results between the PQL and the MDL – Qualified Data. This table presents the results that are estimated, because the result is between the practical quantitation limit (PQL) and the method detection limit (MDL).

• Table B- 3: Holding Times – Qualified Data. This table presents data qualified for instances where the method holding time was exceeded.

• Table B-4: Matrix Spike Precision/Accuracy – Qualified Data. This table presents data that were qualified because MS/MSD criteria have been exceeded.

• Table B-5: Blank Contamination – Qualified Data. This table presents data qualified because of blank contamination.

• Table B-6: Field Duplicate Precision – Qualified Data. This table presents data qualified because the FD precision exceeded the sampling and analytical expectation defined in the QAPP. Analyte reproducibility may be subject to the site-specific variability of contaminants.

• Table B-7: Blank Spike - Qualified Data. This table presents data qualified because QAPP recovery criteria were exceeded.

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APPENDIX B 0BCH2M HILL OAKS ARM SEDIMENT INVESTIGATION DATA QUALITY SUMMARY, SULPHUR BANK MERCURY MINE

• Table B-8: Site Completeness by Analyte - Qualified Data. This table presents the percent completeness by analyte, matrix, and method.

• Table B-9: Sample Summary by CoC – Data Summary. This table presents the sample identifications, sample dates and SDGs sorted by CoC number.

• Table B-10: Sample Chronology – Data Summary. This table presents the sample identifiers, methods, sampling dates, received dates, extraction dates and analysis dates, sorted by SDG number.

B.2.1 General Comments Low-level Detects Sample results for the MDL and the PQL have been flagged “J” and are presented in Table B-2. The qualified results represent values determined at levels where the true value of the measured chemical could not be quantified with a high degree of confidence. The data user should consider these qualified results as estimates when making project decisions. Data qualified for this reason are not discussed in this DQS.

Overall Assessment The number and severity of QC check or field procedure failures presented in the following sections is minimal. Out of approximately 123 normal and FD data points, no data points were rejected; 66 detected results (approximately 54 percent) and 6 non-detected results (approximately 4.9 percent) were qualified as estimated concentrations due to QC exceedances. No detected results were affected by laboratory or field blank contamination.

The majority of the data qualified as estimated concentrations was flagged for elevated sample temperatures upon receipt at the laboratory, and were not the result of EPA Region 9 Laboratory QC failures. These numbers and the overall completeness of 100 percent indicate that the completeness goals for the EPA Region 9 Laboratory data were met and that the quality of the analytical program and laboratory is sufficient to meet the project DQOs.

B.2.2 Method EPA300 (Anions) Holding Time The nitrate, nitrite, and ortho-phosphate holding times for samples SISW100701 and SISW100702 were exceeded by two days and the detected results were flagged “UJ.” These qualified results are shown in Table B-3.

Overall Method Assessment The effect of these QC exceedances is negligible on data usability. Overall, this analysis meets the DQOs of the project.

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APPENDIX B 0BCH2M HILL OAKS ARM SEDIMENT INVESTIGATION DATA QUALITY SUMMARY, SULPHUR BANK MERCURY MINE

B.2.3 Method EPA351.2 (Total Kjeldahl nitrogen) Matrix Spike/Matrix Spike Duplicate One detected result associated with an MS recovery that exceeded the lower control limit and MS/MSD relative percent difference (RPD) exceedance was flagged “J-“ to indicate that this result is an estimated concentration and potentially biased low. The qualified results for the affected sample are presented in Table B-4.

Overall Method Assessment The effect of these QC exceedances is negligible on data usability. Overall, this analysis meets the DQOs of the project.

B.2.4 Method E440.0 (TOC) Temperature Fifty-eight samples were received at the laboratory at 8 degrees Celsius. All 58 results were flagged “J” as estimated concentrations. A summary of these qualified results is presented in Table B-5.

Field Duplicates The RPD criteria were exceeded in one FD pair. The native and FD results were flagged “J” and considered estimated concentrations. A summary of the affected samples is presented in Table B-6.

Blank Spikes Recovery of TOC from a laboratory blank spike sample was less than the lower control limit.

Twenty-three associated detected results were flagged “J” as estimated concentrations. A summary of the affected samples is presented in Table B-7.

Laboratory Duplicates Laboratory duplicate results for seven TOC samples exceeded the RPD control limit. Seven detected results were flagged “J” flagged as estimated concentrations. A summary of the qualified results for the affected samples is presented in Table B-4.

Overall Method Assessment The effect of these QC exceedances is negligible on data usability. Overall, this analysis meets the DQOs of the project.

B.2.5 Completeness Table B-8 provides a summary of the analytes, numbers of samples collected, and completeness calculations for the EPA Region 9 Laboratory data set. Completeness is the number of valid results (not flagged “R”) divided by the number of possible results from all normal and FD samples collected during the sampling event, independent of the reason for any rejected data. The EPA Region 9 Laboratory data set was 100 percent complete.

The final activity in the data quality evaluation is an assessment of whether the data meets the DQOs. The goal of this assessment is to demonstrate that a sufficient number of

RDD/081220007 (CLR3896.DOC) B-5

APPENDIX B 0BCH2M HILL OAKS ARM SEDIMENT INVESTIGATION DATA QUALITY SUMMARY, SULPHUR BANK MERCURY MINE representative samples were collected and the resulting analytical data can be used to support the decision-making process. Precision, accuracy, representativeness, completeness, and comparability are addressed in the QAPP. The following list summarizes the 2007 investigation data evaluation findings for the EPA Region 9 Laboratory data:

• The completeness objectives were met for all method/analyte combinations for the EPA Region 9 Laboratory data.

• Approximately 54 percent of the EPA Region 9 Laboratory data were qualified as estimated because of sample temperature exceedances during shipment, matrix effects, or laboratory QC exceedances.

• Approximately 4.9 percent of the EPA Region 9 Laboratory data were qualified because of holding-time exceedances.

• No EPA Region 9 Laboratory data were qualified because of blank contamination.

• The precision and accuracy of the EPA Region 9 Laboratory data, as measured by field and laboratory QC indicators, suggest that the QAPP goals have been met.

• The field crews and laboratories followed QAPP and project documents, thereby assuring representativeness and consistency with previous studies.

B.2.6 Quality Assurance Activities Evaluation of 100 percent of the EPA Region 9 Laboratory chemical data was performed by using the QAPP as a guide for data quality evaluation. No systematic protocol errors were identified by the QA procedures or during monitoring of the field and laboratory efforts.

B.3 Data Management Sulphur Bank Mercury Mine sampling activity logs and laboratory analytical data are maintained in a project database or in project files, where appropriate. Data were collected and stored in a manner consistent with the requirements outlined in the QAPP and the data management plan (CH2M HILL, 2005b). The data collected include but are not limited to the following:

• Field Data − Daily field progress reports − Field worksheets − Daily field notebooks − Sample collection logs − CoC forms

• Laboratory Data − Laboratory data packages grouped by SDG − Internal data evaluation reports for all data

Laboratory data were received in both hardcopy and in electronic, comma-delimited American Standard Code for Information Interchange (ASCII) format. The receipt of both data types was logged into the sample tracking program to determine completeness. All

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APPENDIX B 0BCH2M HILL OAKS ARM SEDIMENT INVESTIGATION DATA QUALITY SUMMARY, SULPHUR BANK MERCURY MINE

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data validation reports for the CH2M HILL-validated data are generated from the electronic database.

The data management system was designed to maintain the usability and integrity of the data through a series of procedures and QC checks that began at the field site and carried through to the generation of data for the user. These data included the chemical data and field operation information. The chemical data and the field data were entered in the relational database in accordance with the guidelines established in the QAPP and in the data management plan (CH2M HILL, 2005b).

The original hardcopy laboratory report and electronic data are stored in the project files and project local area network hard drive areas in the CH2M HILL office in Redding, California. The original field data forms are also stored in the CH2M HILL office in Redding, California. Laboratories are required to archive the analytical data as prescribed in the QAPP.

B.4 References CH2M HILL. 2008. Oaks Arm Sediment Investigation Data Evaluation Report, Sulphur Bank Mercury Mine Superfund Site, Clearlake Oaks, California. November.

CH2M HILL. 2007. Oaks Arm Sediment Investigation Field Sampling Plan, Sulphur Bank Mercury Mine Superfund Site, Clearlake Oaks, California. October.

CH2M HILL. 2006. Final Mine Waste and Pore Water Investigation Data Evaluation Report, Sulphur Bank Mercury Mine Superfund Site, Clearlake Oaks, California. December.

CH2M HILL. 2005a. Quality Assurance Project Plan for Sulphur Bank Mercury Mine Superfund Site, Clearlake Oaks, California. June.

CH2M HILL. 2005b. Data Management Plan for Sulphur Bank Mercury Mine Superfund Site, Clearlake Oaks, California. May.

U.S. Environmental Protection Agency (EPA). 2004. Contract Laboratory Program National Functional Guidelines for Inorganic Data Review.

Tables

Validation Reason Validation Flag* Flag Type Number of

Affected AnalytesMethod Matrix

Overall Flagging Summary

TABLE B-1

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E300 WATER

Holding time exceededHoldingTimeCategory =

UJ Protocol 6

E351.2 WATER

Matrix spike recovery less than lower limitMatrixCategory =

J- Other 1 Matrix spike RPD criteria exceedanceMatrixCategory =

J Other 1

E440.0 SOIL

Temperature Blank>8CBlankCategory =

J Other 58 Field duplicate exceeds RPD criteriaFieldDuplicateCategory =

J Other 2 LCS recovery less than lower control limitLaboratoryControlSampleCategory =

J Protocol 23 Lab duplicate exceeds RPD criteriaMatrixCategory =

J Other 7

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

J- = Estimated Low UJ = Analyte was not detected and the specified detection limit may not be accurate or precise (estimated).

Flag Type: Protocol = Flagging due to contractor/laboratory protocol violations.

Other = Flagging due to sample, matrix, or field issues not related to QAPP or SAP protocol.

* The most severe flag for each analyte becomes the final validation flag.

Method Matrix Analyte Result Low-Level Detects Final Qualifier*Sample ID Criteria

Results between the RL and MDL - Qualified Data

TABLE B-2

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E160.2 WATER

Total Suspended Solids

6 MG/L JSISW100702 < RL

E440.0 SOIL

Total Organic Carbon

0.13 PERCENT JSI52SDa1007 < RL

0.12 PERCENT JSI53SDa1007 < RL

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

Method Matrix Analyte Result Holding Time QualifierSample ID Final Flag*Holding Time

Holding Times - Qualified Data

TABLE B-3

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E300 WATER SISW100701

0.05 MG/L UJNitrate as N UJ4 Days

0.05 MG/L UJNitrite as N UJ4 Days

0.5 MG/L UJo-Phosphate, as P UJ4 Days

E300 WATER SISW100702

0.05 MG/L UJNitrate as N UJ4 Days

0.05 MG/L UJNitrite as N UJ4 Days

0.5 MG/L UJo-Phosphate, as P UJ4 Days

Qualifier Description:

UJ = Analyte was not detected and the specified detection limit may not be accurate or precise (estimated).

* The most severe flag for each analyte becomes the final validation flag.

Criteria:

HTa>UCL Holding time exceeded=

Method Matrix Analyte Result MS/MSD Qualifier*Sample ID Criteria

Matrix Spike Precision/Accuracy - Qualified Data

TABLE B-4

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E351.2 WATER Nitrogen, Total Kjeldahl

0.69 MG/L J-SISW100701 MS<LCL

0.69 MG/L JSISW100701 MSRPD

E440.0 SOIL Total Organic Carbon

0.26 PERCENT JSI03SDd1007 Lab Dup RPD

2.8 PERCENT JSI10SDd1007FD Lab Dup RPD

1.5 PERCENT JSI11SDb1007 Lab Dup RPD

0.61 PERCENT JSI12SDa1007 Lab Dup RPD

1.5 PERCENT JSI12SDb1007 Lab Dup RPD

0.95 PERCENT JSI15SDa1007 Lab Dup RPD

0.39 PERCENT JSI42SDe1007 Lab Dup RPD

Criteria:

Lab Dup RP Lab duplicate exceeds RPD criteria= MS<LCL Matrix spike recovery less than lower limit= MSRPD Matrix spike RPD criteria exceedance=

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

J- = Estimated Low

Method Matrix Analyte Result Blank Contamination

Qualifier*Sample ID Criteria Comments

Blank Contamination - Qualified Data

TABLE B-5

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E440.0 SOIL Total Organic Carbon

2.2 PERCENT JSI0202SDa1007 TEMP>8C

5.6 PERCENT JSI02SDa1007 TEMP>8C

0.95 PERCENT JSI02SDb1007 TEMP>8C

0.3 PERCENT JSI02SDc1007 TEMP>8C

0.17 PERCENT JSI02SDd1007 TEMP>8C

0.19 PERCENT JSI02SDe1007 TEMP>8C

0.33 PERCENT JSI02SDf1007 TEMP>8C

1.6 PERCENT JSI04SDa1007 TEMP>8C

0.58 PERCENT JSI04SDb1007 TEMP>8C

2.3 PERCENT JSI04SDc1007 TEMP>8C

1.7 PERCENT JSI04SDc1007FD TEMP>8C

1 PERCENT JSI04SDd1007 TEMP>8C

1.5 PERCENT JSI04SDe1007 TEMP>8C

0.36 PERCENT JSI04SDf1007 TEMP>8C

2.3 PERCENT JSI13SDa1007 TEMP>8C

5.1 PERCENT JSI13SDb1007 TEMP>8C

5.3 PERCENT JSI13SDb1007FD TEMP>8C

0.2 PERCENT JSI13SDc1007 TEMP>8C

0.19 PERCENT JSI13SDd1007 TEMP>8C

0.57 PERCENT JSI14SDa1007 TEMP>8C

0.72 PERCENT JSI14SDa1007FD TEMP>8C

1 PERCENT JSI14SDb1007 TEMP>8C

0.53 PERCENT JSI14SDc1007 TEMP>8C

0.95 PERCENT JSI15SDa1007 TEMP>8C

0.4 PERCENT JSI15SDb1007 TEMP>8C

3.2 PERCENT JSI16SDa1007 TEMP>8C

0.77 PERCENT JSI16SDb1007 TEMP>8C

7.7 PERCENT JSI17SDa1007 TEMP>8C

3.8 PERCENT JSI18SDa1007 TEMP>8C

3.3 PERCENT JSI18SDa1007FD TEMP>8C

Qualifier*Sample ID Criteria Comments

Blank Contamination - Qualified Data

TABLE B-5

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

2.5 PERCENT JSI22SDa1007 TEMP>8C

3.8 PERCENT JSI24SDa1007 TEMP>8C

3.5 PERCENT JSI25SDa1007 TEMP>8C

3.1 PERCENT JSI25SDa1007FD TEMP>8C

0.72 PERCENT JSI26SDa1007 TEMP>8C

0.94 PERCENT JSI26SDa1007FD TEMP>8C

3.1 PERCENT JSI27SDa1007 TEMP>8C

0.55 PERCENT JSI28SDa1007 TEMP>8C

9 PERCENT JSI30SDa1007 TEMP>8C

9.1 PERCENT JSI30SDa1007FD TEMP>8C

4.2 PERCENT JSI31SDa1007 TEMP>8C

8.5 PERCENT JSI32SDa1007 TEMP>8C

7.9 PERCENT JSI32SDa1007FD TEMP>8C

0.91 PERCENT JSI42SDa1007 TEMP>8C

2 PERCENT JSI42SDb1007 TEMP>8C

2.7 PERCENT JSI42SDc1007 TEMP>8C

0.63 PERCENT JSI42SDd1007 TEMP>8C

0.39 PERCENT JSI42SDe1007 TEMP>8C

0.43 PERCENT JSI45SDa1007 TEMP>8C

0.45 PERCENT JSI45SDa1007FD TEMP>8C

0.33 PERCENT JSI46SDa1007 TEMP>8C

0.59 PERCENT JSI47SDa1007 TEMP>8C

0.59 PERCENT JSI48SDa1007 TEMP>8C

0.13 PERCENT JSI52SDa1007 TEMP>8C

0.12 PERCENT JSI53SDa1007 TEMP>8C

0.22 PERCENT JSI54SDa1007 TEMP>8C

0.36 PERCENT JSI55SDa1007 TEMP>8C

0.41 PERCENT JSI56SDa1007 TEMP>8C

Qualifier*Sample ID Criteria Comments

Blank Contamination - Qualified Data

TABLE B-5

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

Criteria:

TEMP>8C Temperature Blank>8C=

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

Method Matrix Analyte Result Field Duplicate Qualifier*Sample ID Criteria

Field Duplicate Precision - Qualified Data

TABLE B-6

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E440.0 SOIL Total Organic Carbon

1 PERCENT JSI10SDd1007 FD>RPD

2.8 PERCENT JSI10SDd1007FD FD>RPD

Criteria:

FD>RPD Field duplicate exceeds RPD criteria=

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

Method Matrix Analyte Result Qualifier*Sample ID / QC Type CriteriaLCS Recovery

Blank Spike - Qualified Data

TABLE B-7

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E440.0 SOIL Total Organic Carbon

1 PERCENT JSI04SDd1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

1.5 PERCENT JSI04SDe1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.36 PERCENT JSI04SDf1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

2.3 PERCENT JSI13SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

5.1 PERCENT JSI13SDb1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

5.3 PERCENT JSI13SDb1007FD / FD %R = 77 LCL=80 UCL=120 LCS<LCL

0.2 PERCENT JSI13SDc1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.19 PERCENT JSI13SDd1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

7.7 PERCENT JSI17SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

3.5 PERCENT JSI25SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

3.1 PERCENT JSI25SDa1007FD / FD %R = 77 LCL=80 UCL=120 LCS<LCL

0.55 PERCENT JSI28SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

4.2 PERCENT JSI31SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.43 PERCENT JSI45SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.45 PERCENT JSI45SDa1007FD / FD %R = 77 LCL=80 UCL=120 LCS<LCL

0.33 PERCENT JSI46SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.59 PERCENT JSI47SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.59 PERCENT JSI48SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.13 PERCENT JSI52SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.12 PERCENT JSI53SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.22 PERCENT JSI54SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.36 PERCENT JSI55SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

0.41 PERCENT JSI56SDa1007 / N %R = 77 LCL=80 UCL=120 LCS<LCL

Method Matrix Analyte Result Qualifier*Sample ID / QC Type CriteriaLCS Recovery

Blank Spike - Qualified Data

TABLE B-7

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

Note: Sample ID/QC Type = Field Sample Identifier and QAQC Type

Criteria:

LCS<LCL LCS recovery less than lower control limit=

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

Method Analyte Units

Analyses Detects Blank Flags

J Flags

M Flags

Contractor R

Flags

Total R

Flags Non-detects

Contractor Percent

Completeness

Overall Percent

Completeness

Number of Occurrences

Site Completeness by Analyte - Qualified Data

TABLE B-8

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

E160.1 Total Dissolved Solids MG/L 2 2 100 100 E160.2 Total Suspended Solids MG/L 2 1 11 100 100 E300 Bromide MG/L 2 2 100 100 E300 Chloride MG/L 2 2 100 100 E300 Fluoride MG/L 2 2 100 100 E300 Nitrate as N MG/L 2 22 100 100 E300 Nitrite as N MG/L 2 22 100 100 E300 o-Phosphate, as P MG/L 2 22 100 100 E300 Sulfate MG/L 2 2 100 100 E350.1 Ammonia as N MG/L 2 2 100 100 E351.2 Nitrogen, Total Kjeldahl MG/L 2 2 1 100 100 E415.3 Total Organic Carbon MG/L 2 2 100 100 E440.0 Total Organic Carbon PERCEN 91 91 64 100 100 SM2320 Bicarbonate Alkalinity MG/L 2 2 100 100 SM2320 Carbonate Alkalinity MG/L 2 1 1 100 100 SM2320 Hydroxide Alkalinity MG/L 2 2 100 100 SM2320 Total Alkalinity MG/L 2 2 100 100

Qualifier Description:

J = Analyte was present but the reported value may not be accurate or precise (estimated).

J- = Estimated Low UJ = Analyte was not detected and the specified detection limit may not be accurate or precise (estimated).

Flag Type: Protocol = Flagging due to contractor/laboratory protocol violations.

Other = Flagging due to sample, matrix, or field issues not related to QAPP or SAP protocol.

COC Number Matrix Sample ID (Type)Sample Date SDG Laboratory

Sample Summary by COC - Data Summary

TABLE B-9

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

EPA9-PW01A 18-Oct-07

SOIL

SI02SDa1007 ( N) 07296B EPAR9 SI02SDb1007 ( N) 07296B EPAR9 SI02SDc1007 ( N) 07296B EPAR9 SI02SDd1007 ( N) 07296B EPAR9 SI02SDe1007 ( N) 07296B EPAR9 SI02SDf1007 ( N) 07296B EPAR9 SI04SDa1007 ( N) 07296B EPAR9 SI04SDb1007 ( N) 07296B EPAR9 SI04SDc1007 ( N) 07296B EPAR9 SI04SDc1007FD ( FD) 07296B EPAR9 SI04SDd1007 ( N) 07296B EPAR9 SI04SDe1007 ( N) 07296B EPAR9 SI04SDf1007 ( N) 07296B EPAR9 SI13SDa1007 ( N) 07296B EPAR9 SI13SDa1007MS ( MS) 07296B EPAR9 SI13SDa1007SD ( SD) 07296B EPAR9 SI13SDb1007 ( N) 07296B EPAR9 SI13SDb1007FD ( FD) 07296B EPAR9 SI13SDc1007 ( N) 07296B EPAR9 SI13SDd1007 ( N) 07296B EPAR9 SI14SDa1007 ( N) 07296B EPAR9 SI14SDa1007FD ( FD) 07296B EPAR9 SI14SDb1007 ( N) 07296B EPAR9 SI14SDc1007 ( N) 07296B EPAR9

EPA9-PW01B 18-Oct-07

SOIL

SI15SDa1007 ( N) 07296C EPAR9 SI15SDb1007 ( N) 07296C EPAR9 SI16SDa1007 ( N) 07296C EPAR9

TABLE B-9

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

EPA9-PW01B 18-Oct-07

SOIL

SI16SDb1007 ( N) 07296C EPAR9 SI16SDb1007MS ( MS) 07296C EPAR9 SI16SDb1007SD ( SD) 07296C EPAR9 SI18SDa1007 ( N) 07296C EPAR9 SI18SDa1007FD ( FD) 07296C EPAR9 SI22SDa1007 ( N) 07296C EPAR9 SI24SDa1007 ( N) 07296C EPAR9 SI24SDa1007MS ( MS) 07296C EPAR9 SI24SDa1007SD ( SD) 07296C EPAR9 SI26SDa1007 ( N) 07296C EPAR9 SI26SDa1007FD ( FD) 07296C EPAR9 SI27SDa1007 ( N) 07296C EPAR9 SI30SDa1007 ( N) 07296C EPAR9 SI30SDa1007FD ( FD) 07296C EPAR9 SI32SDa1007 ( N) 07296C EPAR9 SI32SDa1007FD ( FD) 07296C EPAR9 SI42SDa1007 ( N) 07296C EPAR9 SI42SDb1007 ( N) 07296C EPAR9 SI42SDc1007 ( N) 07296C EPAR9 SI42SDd1007 ( N) 07296C EPAR9 SI42SDe1007 ( N) 07296C EPAR9

WATER

SIER100703 ( EB) 07296C EPAR9

SIER100703MS ( MS) 07296C EPAR9

SIER100703SD ( SD) 07296C EPAR9

EPA9-PW02A 21-Oct-07

WATER

SISW100701 ( N) 07298F EPAR9

SISW100701MS ( MS) 07298F EPAR9

TABLE B-9

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

EPA9-PW02A 21-Oct-07

WATER

SISW100701SD ( SD) 07298F EPAR9

SISW100702 ( N) 07298F EPAR9

SISW100702MS ( MS) 07298F EPAR9

SISW100702SD ( SD) 07298F EPAR9

EPA9-PW03A 23-Oct-07

SOIL

SI0202SDa1007 ( N) 07299A EPAR9 SI17SDa1007 ( N) 07299A EPAR9 SI25SDa1007 ( N) 07299A EPAR9 SI25SDa1007FD ( FD) 07299A EPAR9 SI25SDa1007MS ( MS) 07299A EPAR9 SI25SDa1007SD ( SD) 07299A EPAR9 SI28SDa1007 ( N) 07299A EPAR9 SI31SDa1007 ( N) 07299A EPAR9 SI45SDa1007 ( N) 07299A EPAR9 SI45SDa1007FD ( FD) 07299A EPAR9 SI46SDa1007 ( N) 07299A EPAR9 SI47SDa1007 ( N) 07299A EPAR9 SI48SDa1007 ( N) 07299A EPAR9 SI52SDa1007 ( N) 07299A EPAR9 SI53SDa1007 ( N) 07299A EPAR9 SI54SDa1007 ( N) 07299A EPAR9 SI55SDa1007 ( N) 07299A EPAR9 SI56SDa1007 ( N) 07299A EPAR9

WATER

SIER100702 ( EB) 07299A EPAR9

SIER100704 ( EB) 07299A EPAR9

SIER100704MS ( MS) 07299A EPAR9

SIER100704SD ( SD) 07299A EPAR9

TABLE B-9

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

EPA9-PW03A 23-Oct-07

EPA9-SS01A 17-Oct-07

SOIL

SI01SDa1007 ( N) 07295A EPAR9 SI01SDb1007 ( N) 07295A EPAR9 SI03SDa1007 ( N) 07295A EPAR9 SI03SDb1007 ( N) 07295A EPAR9 SI03SDc1007 ( N) 07295A EPAR9 SI03SDd1007 ( N) 07295A EPAR9 SI05SDa1007 ( N) 07295A EPAR9 SI05SDb1007 ( N) 07295A EPAR9 SI05SDc1007 ( N) 07295A EPAR9 SI06SDa1007 ( N) 07295A EPAR9 SI06SDb1007 ( N) 07295A EPAR9 SI06SDc1007 ( N) 07295A EPAR9 SI06SDd1007 ( N) 07295A EPAR9 SI06SDe1007 ( N) 07295A EPAR9 SI06SDf1007 ( N) 07295A EPAR9 SI06SDf1007MS ( MS) 07295A EPAR9 SI06SDf1007SD ( SD) 07295A EPAR9 SI06SDg1007 ( N) 07295A EPAR9 SI09SDa1007 ( N) 07295A EPAR9 SI09SDb1007 ( N) 07295A EPAR9 SI09SDc1007 ( N) 07295A EPAR9 SI09SDd1007 ( N) 07295A EPAR9 SI09SDe1007 ( N) 07295A EPAR9

EPA9-SS01B 16-Oct-07

SOIL

SI10SDa1007 ( N) 07295B EPAR9 SI10SDb1007 ( N) 07295B EPAR9

TABLE B-9

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

EPA9-SS01B 16-Oct-07

SOIL

SI10SDc1007 ( N) 07295B EPAR9 SI10SDd1007 ( N) 07295B EPAR9 SI10SDd1007FD ( FD) 07295B EPAR9 SI11SDa1007 ( N) 07295B EPAR9 SI11SDb1007 ( N) 07295B EPAR9 SI11SDc1007 ( N) 07295B EPAR9 SI12SDa1007 ( N) 07295B EPAR9 SI12SDa1007MS ( MS) 07295B EPAR9 SI12SDa1007SD ( SD) 07295B EPAR9 SI12SDb1007 ( N) 07295B EPAR9 SI12SDc1007 ( N) 07295B EPAR9 SI12SDc1007FD ( FD) 07295B EPAR9

Lab Name Package Number Sample ID Method Sample Date Receive Date Extract Date Analysis Date

Sample Chronology - Data Summary

TABLE B-10

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

SI01SDa1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/200707295AEPAR9 SI01SDb1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI03SDa1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI03SDb1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI03SDc1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI03SDd1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI05SDa1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI05SDb1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI05SDc1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI06SDa1007 E440.0 10/17/2007 10/19/2007 10/23/2007 10/24/2007 SI06SDb1007 E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDc1007 E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDd1007 E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDe1007 E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDf1007 E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDf1007MS E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDf1007SD E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI06SDg1007 E440.0 10/17/2007 10/19/2007 10/24/2007 10/25/2007 SI09SDa1007 E440.0 10/16/2007 10/19/2007 10/24/2007 10/25/2007 SI09SDb1007 E440.0 10/16/2007 10/19/2007 10/24/2007 10/25/2007 SI09SDc1007 E440.0 10/16/2007 10/19/2007 10/24/2007 10/25/2007 SI09SDd1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI09SDe1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI10SDa1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/200707295B SI10SDb1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI10SDc1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI10SDd1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI10SDd1007FD E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI11SDa1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI11SDb1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI11SDc1007 E440.0 10/16/2007 10/19/2007 10/25/2007 10/26/2007 SI12SDa1007 E440.0 10/17/2007 10/19/2007 10/26/2007 10/29/2007

TABLE B-10

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

SI12SDa1007MS E440.0 10/17/2007 10/19/2007 10/26/2007 10/29/200707295BEPAR9 SI12SDa1007SD E440.0 10/17/2007 10/19/2007 10/26/2007 10/29/2007 SI12SDb1007 E440.0 10/17/2007 10/19/2007 10/26/2007 10/29/2007 SI12SDc1007 E440.0 10/17/2007 10/19/2007 10/26/2007 10/29/2007 SI12SDc1007FD E440.0 10/17/2007 10/19/2007 10/26/2007 10/29/2007 SI02SDa1007 E440.0 10/18/2007 10/23/2007 10/29/2007 10/30/200707296B SI02SDb1007 E440.0 10/18/2007 10/23/2007 10/29/2007 10/30/2007 SI02SDc1007 E440.0 10/18/2007 10/23/2007 10/29/2007 10/30/2007 SI02SDd1007 E440.0 10/18/2007 10/23/2007 10/29/2007 10/30/2007 SI02SDe1007 E440.0 10/18/2007 10/23/2007 10/29/2007 10/30/2007 SI02SDf1007 E440.0 10/18/2007 10/23/2007 10/29/2007 10/30/2007 SI04SDa1007 E440.0 10/19/2007 10/23/2007 10/29/2007 10/30/2007 SI04SDb1007 E440.0 10/19/2007 10/23/2007 10/29/2007 10/30/2007 SI04SDc1007 E440.0 10/19/2007 10/23/2007 10/29/2007 10/30/2007 SI04SDc1007FD E440.0 10/19/2007 10/23/2007 10/29/2007 10/30/2007 SI04SDd1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI04SDe1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI04SDf1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDa1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDa1007MS E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDa1007SD E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDb1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDb1007FD E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDc1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI13SDd1007 E440.0 10/19/2007 10/23/2007 10/30/2007 10/31/2007 SI14SDa1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI14SDa1007FD E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI14SDb1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI14SDc1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI15SDa1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/200707296C SI15SDb1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI16SDa1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007

TABLE B-10

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

SI16SDb1007 E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/200707296CEPAR9 SI16SDb1007MS E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI16SDb1007SD E440.0 10/18/2007 10/23/2007 10/31/2007 11/1/2007 SI18SDa1007 E440.0 10/20/2007 10/23/2007 10/31/2007 11/1/2007 SI18SDa1007FD E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI22SDa1007 E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI24SDa1007 E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI24SDa1007MS E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI24SDa1007SD E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI26SDa1007 E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI26SDa1007FD E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI27SDa1007 E440.0 10/19/2007 10/23/2007 11/1/2007 11/2/2007 SI30SDa1007 E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI30SDa1007FD E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI32SDa1007 E440.0 10/20/2007 10/23/2007 11/1/2007 11/2/2007 SI32SDa1007FD E440.0 10/20/2007 10/23/2007 11/2/2007 11/5/2007 SI42SDa1007 E440.0 10/19/2007 10/23/2007 11/2/2007 11/5/2007 SI42SDb1007 E440.0 10/19/2007 10/23/2007 11/2/2007 11/5/2007 SI42SDc1007 E440.0 10/19/2007 10/23/2007 11/2/2007 11/5/2007 SI42SDd1007 E440.0 10/19/2007 10/23/2007 11/2/2007 11/5/2007 SI42SDe1007 E440.0 10/19/2007 10/23/2007 11/2/2007 11/5/2007

SIER100703 E415.3 10/17/2007 10/23/2007 10/30/2007 10/30/2007

SIER100703MS E415.3 10/17/2007 10/23/2007 10/30/2007 10/30/2007

SIER100703SD E415.3 10/17/2007 10/23/2007 10/30/2007 10/30/2007

SISW100701 E160.1 10/21/2007 10/25/2007 10/26/2007 10/26/200707298F

SISW100701 E160.2 10/21/2007 10/25/2007 10/26/2007 10/26/2007

SISW100701 E300 10/21/2007 10/25/2007 10/25/2007 10/25/2007

SISW100701 E350.1 10/21/2007 10/25/2007 10/30/2007 10/30/2007

SISW100701 E351.2 10/21/2007 10/25/2007 11/2/2007

SISW100701 E415.3 10/21/2007 10/25/2007 10/30/2007 10/30/2007

SISW100701 SM2320 10/21/2007 10/25/2007 11/2/2007 11/2/2007

SISW100701MS E300 10/21/2007 10/25/2007 10/25/2007 10/25/2007

TABLE B-10

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

SISW100701MS E350.1 10/21/2007 10/25/2007 10/30/2007 10/30/200707298FEPAR9

SISW100701MS E351.2 10/21/2007 10/25/2007 11/2/2007

SISW100701SD E300 10/21/2007 10/25/2007 10/25/2007 10/25/2007

SISW100701SD E350.1 10/21/2007 10/25/2007 10/30/2007 10/30/2007

SISW100701SD E351.2 10/21/2007 10/25/2007 11/2/2007

SISW100702 E160.1 10/21/2007 10/25/2007 10/26/2007 10/26/2007

SISW100702 E160.2 10/21/2007 10/25/2007 10/26/2007 10/26/2007

SISW100702 E300 10/21/2007 10/25/2007 10/25/2007 10/25/2007

SISW100702 E350.1 10/21/2007 10/25/2007 10/30/2007 10/30/2007

SISW100702 E351.2 10/21/2007 10/25/2007 11/2/2007

SISW100702 E415.3 10/21/2007 10/25/2007 10/30/2007 10/31/2007

SISW100702 SM2320 10/21/2007 10/25/2007 11/2/2007 11/2/2007

SISW100702MS E415.3 10/21/2007 10/25/2007 10/30/2007 10/31/2007

SISW100702SD E415.3 10/21/2007 10/25/2007 10/30/2007 10/31/2007

SI0202SDa1007 E440.0 10/23/2007 10/26/2007 11/6/2007 11/7/200707299A SI17SDa1007 E440.0 10/22/2007 10/26/2007 11/7/2007 11/8/2007 SI25SDa1007 E440.0 10/22/2007 10/26/2007 11/7/2007 11/8/2007 SI25SDa1007FD E440.0 10/22/2007 10/26/2007 11/7/2007 11/8/2007 SI25SDa1007MS E440.0 10/22/2007 10/26/2007 11/7/2007 11/8/2007 SI25SDa1007SD E440.0 10/22/2007 10/26/2007 11/7/2007 11/8/2007 SI28SDa1007 E440.0 10/22/2007 10/26/2007 11/7/2007 11/8/2007 SI31SDa1007 E440.0 10/23/2007 10/26/2007 11/7/2007 11/8/2007 SI45SDa1007 E440.0 10/24/2007 10/26/2007 11/7/2007 11/8/2007 SI45SDa1007FD E440.0 10/24/2007 10/26/2007 11/7/2007 11/8/2007 SI46SDa1007 E440.0 10/24/2007 10/26/2007 11/7/2007 11/8/2007 SI47SDa1007 E440.0 10/23/2007 10/26/2007 11/7/2007 11/8/2007 SI48SDa1007 E440.0 10/23/2007 10/26/2007 11/8/2007 11/12/2007 SI52SDa1007 E440.0 10/24/2007 10/26/2007 11/8/2007 11/12/2007 SI53SDa1007 E440.0 10/24/2007 10/26/2007 11/8/2007 11/12/2007 SI54SDa1007 E440.0 10/24/2007 10/26/2007 11/8/2007 11/12/2007 SI55SDa1007 E440.0 10/24/2007 10/26/2007 11/8/2007 11/12/2007 SI56SDa1007 E440.0 10/24/2007 10/26/2007 11/8/2007 11/12/2007

TABLE B-10

Oaks Arm Sediment Investigation Data Quality Summary, Sulphur Bank Mercury Mine Superfund Site

SIER100702 E415.3 10/22/2007 10/26/2007 11/6/2007 11/8/200707299AEPAR9

SIER100704 E415.3 10/24/2007 10/26/2007 10/30/2007 10/31/2007

SIER100704MS E415.3 10/24/2007 10/26/2007 10/30/2007 10/31/2007

SIER100704SD E415.3 10/24/2007 10/26/2007 10/30/2007 10/31/2007

Attachments

Attachment B1 ICF Consulting/Laboratory Data Consultants Data Quality Summary for Monomethyl Mercury Data

DAT Qualifier Definitions

J The associated numerical value is an estimated quantity.

UJ The material was analyzed for, but not detected.

N Presumptive evidence of the presence of the material.

NJ Presumptive evidence of the presence of the material at an estimated quantity.

R The data are unusable (compound may or may not be present). Resampling and reanalysis is necessary for verification.

M Required information is missing.

VS Visual Inspection is required.

SOW Data Qualifier Definitions

Organic (OLM4, OLC3)

D Detection associated with sample dilution E Concentration exceeds upper level of instrument calibration range J Estimated value B Analyte found in associated method blank as well as in sample U Undetected compound A Suspected aldol-condensation product (TICs) P Percent difference >25% for detected concentrations between two GC columns C Pesticide result identification confirmed by GC/MS X Laboratory-defined flag or combination of several flags Y Laboratory-defined flag or combination of several flags Z Laboratory-defined flag or combination of several flags N Presumptive evidence of a compound

Inorganic (ILM4, ILM5)

J Value less than CRQL, but greater than or equal to MDL (ILM5) U Analyte not detected (less than MDL for ILM5, less than IDL for ILM4)) B Less than CRDL, greater than or equal to the IDL (ILM4) D Detection associated with sample dilution (ILM5) E Estimated, due to the presence of interferents (ILM5), GFAA post-digestion spike sample recovery (after dilution) <40% (ILM4) R Internal standard relative intensity not within control limits (ICP-MS ILM5) W GFAA post-digestion spike recovery not within recovery limits (ILM4) N Spiked sample recovery not within control limits

* Duplicate analysis not within control limits + MSA correlation coefficient <0.995 (ILM4) M %RSD not within control limits (GFAA for ILM4) W Analytical Spike not within control limits (PBMS only)

ANALYTICAL RESULTS Page ____ of ____ Case No. : 36889 SDG No. : MY3PS0 Table 1A

Site : SULPHUR BANK MERCURY MINE Lab : CHEMTECH

Reviewer : QUALIFIED DATA Analysis Type : LOW Concentration Soil Date : Concentration in mg/Kg (Dry Weight) Samples for Total Metals

Station Location : SI01SDa1007 SI01SDb1007 SI03SDa1007 SI03SDb1007 SI03SDc1007 SI03SDd1007 Sample ID : MY3PS0 MY3PS1 MY3PS2 MY3PS3 MY3PS4 MY3PS5

Collection Date : 10/17/2007 10/17/2007 10/17/2007 10/17/2007 10/17/2007 10/17/2007 Dilution Factor : 1.0 1.0 1.0 1.0 1.0 1.0

PARAMETER Result Val Com Result Val Com Result Val Com Result Val Com Result Val Com Result Val Com

ALUMINUM 19900 19000 12800 19100 16100 16900

ANTIMONY 1.2J UJ 1.1J UJ 1.2J UJ 1.7J UJ 0.30J UJ 6.8U U

ARSENIC 2.1 6.5 4.7 13.1 2.1 2.7

BARIUM 189 163 168 221 148 128

BERYLLIUM 0.47J J 0.50J J 0.59J J 0.80J J 0.68 0.73

CADMIUM 0.62U U 0.60U U 0.060J UJ 1.1U U 0.080J UJ 0.17J UJ

CALCIUM 1750 1480 2710 8510 3780 2210

CHROMIUM 52.1 60.6 74.6 76.8 79.6 98.9

COBALT 15.6 12.6 16.7 22.5 18.4 18.8

COPPER 33.6 38.8 32.6 47.4 37.1 40.5

IRON 23600 24800 30700 37400 28300 34000

LEAD 8.6 9.1 6.7 9.2 8.5 8.0

MAGNESIUM 4780 5540 7330 8950 10200 11800

MANGANESE 302 J 271 J 470 J 669 J 400 J 552 J

MERCURY 34.8 35.8 73.0 139 55.8 31.8

NICKEL 53.5 51.2 80.2 100 104 119

POTASSIUM 1320 1530 1020 1860 1680 1210

SELENIUM 1.8J J 1.8J J 2.3J J 2.8J J 1.9J J 1.8J J

SILVER 1.2U U 1.2U U 1.2U U 2.2U U 1.2U U 1.1U U

SODIUM 152J UJ 138J UJ 207J UJ 353J UJ 172J UJ 193J UJ

THALLIUM 3.1U U 3.0U U 3.0U U 5.4U U 2.9U U 2.8U U

VANADIUM 49.0 56.5 37.8 52.2 42.8 46.1

ZINC 70.4 74.8 62.2 77.0 72.9 74.3

MOLYBDENUM 2.5U 0.71J 2.4U 4.3U 2.3U 2.3U

BORON 73.3 61.4 82.0 145 72.2 68.9

Percent Solids 80.9% 82.7% 82.0% 46.0% 85.6% 87.2%

Val - Validity. Refer to Data Qualifiers in Table 1B. D1, D2, etc. - Field Duplicate Pairs Com - Comments. Refer to the Corresponding Section in the Narrative for each letter. FB - Field Blank, EB - Equipment Blank, IDL - Instrument Detection Limit TB - Trip Blank, BG - Background Sample N/A - Not Applicable CRQL - Contract Required Quantitation Limit NA - Not Analyzed

Case No. : 36889 SDG No. : MY3PS0 Table 1A

Site : SULPHUR BANK MERCURY MINE Lab : CHEMTECH

Reviewer : QUALIFIED DATA Analysis Type : LOW Concentration Soil Date : Concentration in mg/Kg (Dry Weight) Samples for Total Metals

Station Location : SI05SDa1007 SI05SDb1007 SI05SDc1007 SI06SDa1007 SI06SDb1007 SI06SDc1007 Sample ID : MY3PS6 MY3PS7 MY3PS8 MY3PS9 MY3PT0 MY3PT1

Collection Date : 10/17/2007 10/17/2007 10/17/2007 10/17/2007 10/17/2007 10/17/2007 Dilution Factor : 1.0 1.0 1.0 1.0 1.0 1.0

PARAMETER Result Val Com Result Val Com Result Val Com Result Val Com Result Val Com Result Val Com

ALUMINUM 40100 12000 20500 13400 11100 13500

ANTIMONY 104 0.84J UJ 7.2U U 1.2J UJ 1.1J UJ 0.99J UJ

ARSENIC 64.6 1.2U U 1.2U U 13.2 5.6 1.9

BARIUM 767 104 238 160 120 232

BERYLLIUM 1.1J J 0.56J J 0.94 0.67J J 0.37J J 0.57J J

CADMIUM 1.6U U 0.58U U 0.22J UJ 0.020J UJ 0.61U U 0.16J UJ

CALCIUM 4210 1840 3940 2810 1590 2930

CHROMIUM 99.5 72.6 110 60.9 51.5 53.6

COBALT 35.5 16.3 31.6 19.9 7.3 8.3

COPPER 60.4 31.8 51.4 43.2 41.3 42.9

IRON 66300 24100 40800 42700 26100 45900

LEAD 25.5 6.3 9.0 8.0 10.1 12.6

MAGNESIUM 3870 7200 13500 5100 4290 5840

MANGANESE 425 J 728 J 1680 J 588 J 229 J 831 J

MERCURY 264 43.2 5.5 69.0 68.6 7.1

NICKEL 65.1 79.3 172 69.8 36.1 42.8

POTASSIUM 1290J UJ 994 945 1210 1250 1250

SELENIUM 6.1J J 1.5J J 1.6J J 3.0J J 2.1J J 2.7J J

SILVER 3.2U U 1.2U U 1.2U U 1.4U U 1.2U U 1.2U U

SODIUM 236J UJ 66.0J UJ 111J UJ 192J UJ 167J UJ 226J UJ

THALLIUM 8.1U U 2.9U U 3.0U U 3.6U U 3.1U U 3.0U U

VANADIUM 99.6 40.2 61.4 44.5 51.9 48.6

ZINC 113 51.1 70.7 62.1 45.4 47.6

MOLYBDENUM 0.85J 2.3U 2.4U 0.40J 0.59J 2.4U

BORON 124 15.2 21.2 73.8 68.4 91.7

Percent Solids 30.9% 85.5% 83.0% 69.9% 80.0% 83.1%

Val - Validity. Refer to Data Qualifiers in Table 1B. D1, D2, etc. - Field Duplicate Pairs Com - Comments. Refer to the Corresponding Section in the Narrative for each letter. FB - Field Blank, EB - Equipment Blank, IDL - Instrument Detection Limit TB - Trip Blank, BG - Background Sample

Percent Solids 80.2% 78.8% 76.6% 78.4% 66.4% 71.6%

ANALYTICAL RESULTS Page ____ of ____ Case No. : 36889 SDG No. : MY3PS0 Table 1A

Site : SULPHUR BANK MERCURY MINE Lab : CHEMTECH

Reviewer : QUALIFIED DATA Analysis Type : LOW Concentration Soil Date : Concentration in mg/Kg (Dry Weight) Samples for Total Metals

Station Location : SI06SDd1007 SI06SDe1007 SI06SDf1007 SI06SDf1007MS/MD SI06SDg1007 SI09SDa1007 Sample ID : MY3PT2 MY3PT3 MY3PT4 MY3PT5 MY3PT6 MY3PT7

Collection Date : 10/17/2007 10/17/2007 10/17/2007 10/17/2007 10/17/2007 10/16/2007 Dilution Factor : 1.0 1.0 1.0 1.0 1.0 1.0

PARAMETER Result Val Com Result Val Com Result Val Com Result Val Com Result Val Com Result Val Com

ALUMINUM 14100 17700 14700 13100 10000 58100

ANTIMONY…