MARCH 2015 MONITORING REPORT APPENDIX C. Data Validation Summary Reports. 29 May 2015 Report No _001_R_Rev0

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1 MARCH 2015 MONITORING REPORT APPENDIX C Data Validation Summary Reports 29 May 2015 Report No _001_R_Rev0

2 Project Name: Orica Quarterly March 2015 Project Number: Primary Laboratory: ALS Workorder Number: ES Secondary Laboratory: Envirolab Workorder Number: Number of Primary Samples: Number of Duplicate Samples: requested analysis completed? Samples received intact and chilled? Samples analysed within appropiate holding times? Sample volumes sufficient for QC analysis? Are there non-nata accredited methods used? N Chromatograms supplied as appropriate? N/A Laboratory reports signed by authorised personnel? Type MB TB Method Blank TB_04/12/14 28 Number of Triplicate Samples: 2 3 Number of Other QAQC Samples: 1 Documentation and Sample Handling Information /N DATA VALIDATION SUMMAR SHEET (Sydney) Date Sampled: 4/3/15-5/3/15 Sample Medium: Groundwater Sample Information QAQC Sample Information (Method Blank - MB, Rinsate Blank - RB, Field Blank - FB, Trip Blank - TB) Sample ID results less than LOR (ALS and Envirolab). results less than LOR. Trip Spike Information Analyte Spike Concentrations Recovery Concentration % Recovery N COC completed properly? Signed by field scientist and laboratory personnel. ALS: Samples received in appropriately tretreated and preserved containers. 0.2 C - Ice present. Envirolab: Received samples in appropiate conditions. Temperature 0.0 C - Ice present. N/A N/A N/A N/A No trip spike submitted Halogenated Aliphatic Compounds and Trihalomethanes Laboratory Control Spike (LCS) Analyses LCS recovery for Carbon Tetrachloride (76.6%), Tetrachloroethane (81.6%), cis-1.4-dichloro-2-butene (65.2%) and Dibromochloromethane (79.4%) were less than the lower control limits (79.1%, 82.6%, 69.3% and 80.4%, respectively). other ALS and Envirolab LCS recoveries were within the laboratory recovery control limits. Analyte(s) Matrix Spike (MS) Analyses ALS MS recoveries were within the laboratory recovery control limits. No MS recoveries were performed on Envirolab batch. Laboratory Duplicates (LD) Analyses ALS and Envirolab laboratory duplicate RPDs were within laboratory control limits. Analyte(s) Primary ID Duplicate ID SW046_04/03/15 QC100_04/03/15 SW053_04/03/15 QC101_04/03/15 SW064_04/03/15 QC102_04/03/15 Field Duplicates (FD) Analyses RPD for Carbon Tetrachloride (38.8%) exceeds LOR-based control limits. other FD RPDs were within the accepted LOR based control limits. FD RPDs were within the accepted LOR based control limits. FD RPDs were within the accepted LOR based control limits. Field Triplicates (FT) Analyses Analyte(s) Primary ID Triplicate ID SW046_04/03/15 QC200_04/03/15 FD RPDs were within the accepted LOR based control limits. SW064_04/03/15 QC202_04/03/15 FD RPDs were within the accepted LOR based control limits. Sample ID RPD for Carbon Tetrachloride (38.8%) in the field duplicate analysis of samples SW046_04/0315/QC100_04/03/15 exceeded LOR-based control limits. This result is not considered to affect the characterisation of the sample as both the primary and duplicate results are within the same order of magnitude and the RPD for the primary and triplicate sample results report an acceptable RPDs. This batch has been validated and is considered suitable for environmental interpretive use. Surrogate Compound Monitoring Analyses surrogates were within the accepted laboratory control limits. Overall As stated by ALS: Particular samples required dilution due to the presence of high level contaminants. LOR values have been adjusted accordingly. Low recoveries of some analytes in the LCS test is not expected to significantly affect the quality of the batch data as the exceedance from acceptable criteria was marginal, and all matrix spike results completed for those analytes on the project samples were within acceptable limits. In addition, the reported analytical results for Carbon Tetrachloride and Tetrachloroethane are consistent with historical results whilst cis-1.4-dichloro-2-butene and Dibromochloromethane are not considered contaminants of interest for the project. Note: Data validation assesses each analyte in terms of all the data validation variables and only the exceedances and outliers are reported in this form. *When concentrations are less than the LOR for both primary and duplicate/triplicate results, no RPDs are calculated Performed By: LA Reviewed By: Fabiana Quinton Date: 8/04/2015 Date: 8/04/2015

3 Batches ES / Sample ID SW046_04/03/15 QC100_04/03/15 QC200_04/03/15 Sample Type Primary Sample Field Duplicate Field Triplicate Date Sampled 4/03/2015 4/03/2015 4/03/2015 RPDs Analyte Unit LOR1 LOR2 Primary vs Duplicate Primary vs Triplicate Carbon Tetrachloride µg/l % 10.2% Chloroform µg/l % 19.2% Methylene chloride µg/l <0.005 <0.005 <0.01 NC NC Chloromethane µg/l <0.01 <0.01 <0.01 NC NC Pentachloroethane µg/l <0.001 < NC Tetrachloroethane µg/l <0.001 <0.001 <0.001 NC NC Tetrachloroethane µg/l <0.001 <0.001 <0.001 NC NC Trichloroethane µg/l <0.001 <0.001 <0.001 NC NC Trichloroethane µg/l % 40.0% 1.1-Dichloroethane µg/l <0.001 <0.001 <0.001 NC NC 1.2-Dichloroethane µg/l % 0.0% Tetrachloroethene µg/l % 27.0% Trichloroethene µg/l % 7.1% 1.1-Dichloroethene µg/l <0.001 < NC - cis-1.2-dichloroethene µg/l % 0.0% trans-1.2-dichloroethene µg/l % 100.0% Vinyl chloride µg/l % 26.7% Hexachlorobutadiene µg/l <0.001 < NC - Carbon disulfide µg/l % -

4 Batch ES Sample ID SW053_04/03/15 QC101_04/03/15 Sample Type Primary Sample Field Duplicate Date Sampled 4/03/2015 4/03/2015 RPDs Analyte Unit LOR1 Primary vs Duplicate Carbon Tetrachloride µg/l <0.001 <0.001 NC Chloroform µg/l <0.001 <0.001 NC Methylene chloride µg/l <0.005 <0.005 NC Chloromethane µg/l 0.01 <0.01 <0.01 NC Pentachloroethane µg/l <0.001 <0.001 NC Tetrachloroethane µg/l <0.001 <0.001 NC Tetrachloroethane µg/l <0.001 <0.001 NC Trichloroethane µg/l <0.001 <0.001 NC Trichloroethane µg/l <0.001 <0.001 NC 1.1-Dichloroethane µg/l <0.001 <0.001 NC 1.2-Dichloroethane µg/l <0.001 <0.001 NC Tetrachloroethene µg/l <0.001 <0.001 NC Trichloroethene µg/l <0.001 <0.001 NC 1.1-Dichloroethene µg/l <0.001 <0.001 NC cis-1.2-dichloroethene µg/l <0.001 <0.001 NC trans-1.2-dichloroethene µg/l <0.001 <0.001 NC Vinyl chloride µg/l 0.01 <0.001 <0.01 NC Hexachlorobutadiene µg/l <0.001 <0.001 NC Carbon disulfide µg/l <0.001 <0.001 NC

5 Batches ES / Sample ID SW064_04/03/15 QC102_04/03/15 QC202_04/03/15 Sample Type Primary Sample Field Duplicate Field Triplicate Date Sampled 4/03/2015 4/03/2015 4/03/2015 RPDs Analyte Unit LOR1 LOR2 Primary vs Duplicate Primary vs Triplicate Carbon Tetrachloride µg/l % 50.0% Chloroform µg/l % 40.0% Methylene chloride µg/l <0.005 <0.005 <0.01 NC NC Chloromethane µg/l <0.01 <0.01 <0.01 NC NC Pentachloroethane µg/l <0.001 < NC Tetrachloroethane µg/l <0.001 <0.001 <0.001 NC NC Tetrachloroethane µg/l <0.001 <0.001 <0.001 NC NC Trichloroethane µg/l <0.001 <0.001 <0.001 NC NC Trichloroethane µg/l <0.001 <0.001 <0.001 NC NC 1.1-Dichloroethane µg/l <0.001 <0.001 <0.001 NC NC 1.2-Dichloroethane µg/l <0.001 <0.001 <0.001 NC NC Tetrachloroethene µg/l % 66.7% Trichloroethene µg/l % 0.0% 1.1-Dichloroethene µg/l <0.001 < NC - cis-1.2-dichloroethene µg/l % 0.0% trans-1.2-dichloroethene µg/l <0.001 <0.001 <0.001 NC NC Vinyl chloride µg/l <0.001 <0.01 <0.01 NC NC Hexachlorobutadiene µg/l <0.001 < NC - Carbon disulfide µg/l <0.001 < NC -

ITS REWORK DATA VERIFICATION REPORT for samples collected from CAMP STANLEY STORAGE ACTIVITY BOERNE, TEXAS

INTRODUCTION ITS REWORK DATA VERIFICATION REPORT for samples collected from CAMP STANLEY STORAGE ACTIVITY BOERNE, TEXAS Data Verifiers: Michelle Wolfe & Tammy Chang Parsons The following data validation