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## Burlington WA Corporate Office 1620 S Walnut St - 98233 800.755.9295$360.757.1400

## Bellingham WA Microbiology 805 Orchard Dr Ste 4 - 98225 360.671.0688 

## Portland OR Microbiology/Chemistry 9150 SW Pioneer Ct Ste W- 97070 503.682.7802



## 11-08082 

# QUALITY CONTROL REPORT Report Date: 

# Duplicate, Matrix Spike/Matrix Spike Duplicate and Confirmation Result Report 6/22/2011 Reference Number: 

# SAMPLE DEPENDENT



# Duplicate
Duplicate QC Comments

Qualifier Limits %RPD Units Result Result Analyte Sample Batch Type 

### 6020_110620 17600 BERYLLIUM mg/L DUP 0.0008 0.0008 0.0 0-20 17600ARSENIC mg/L DUP 0.050 0.051 2.0 0-50 17600 MANGANESE mg/L DUP 0.039 0.040 2.5 0-50 17600 NICKEL mg/L DUP 0.168 0.170 1.2 0-50 17600 LEAD mg/L DUP 0.014 0.014 0.0 0-50 17600SELENIUM mg/L DUP 0.169 0.170 0.6 0-50 17600COBALT mg/L DUP 0.004 0.004 0.0 0-20 17600 BERYLLIUM mg/L DUP 0.0008 0.0008 0.0 0-50 17600 MANGANESE mg/L DUP 0.039 0.040 2.5 0-50 17600 NICKEL mg/L DUP 0.168 0.170 1.2 0-50 17600ARSENIC mg/L DUP 0.050 0.051 2.0 0-50 17600SELENIUM mg/L DUP 0.169 0.170 0.6 0-50 17600 LEAD mg/L DUP 0.014 0.014 0.0 0-50 

### HEXCRS-110610

Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch. NA = Indicates %RPD could not be calculated %RPD = Relative Percent Difference

Only Duplicate sample with detections are listed in this report

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### Reference Number:

## 11-08082 Report Date:

## 6/22/2011 

# Matrix Spike Duplicate QC Spike Spike Spike Percent Recovery Comments Qualifier Limits %RPD Batch Sample Analyte Result Result Result Conc Units MS MSD Limits Type 

### 6020_110609 107 17599BERYLLIUM mg/Kg 49 70-130 LFM 0.34 52.8 NA 0-50 70 17599ARSENIC mg/Kg 49 70-130 LFM 18.4 52.8 NA 0-50 100 17599CADMIUM mg/Kg 49 70-130 LFM 1.27 50.3 NA 0-50 112 17599CHROMIUM mg/Kg 49 70-130 LFM 0.48 55.6 NA 0-50 115 17599 MANGANESE mg/Kg 49 70-130 LFM 0.57 57 NA 0-50 104 17599 NICKEL mg/Kg 49 70-130 LFM 189 240 NA 0-50 78 17599LEAD mg/Kg 49 70-130 LFM 10.5 48.5 NA 0-50 104 17599SELENIUM mg/Kg 49 70-130 LFM ND 51 NA 0-50 77 17599ANTIMONY mg/Kg 49 70-130 LFM 0.33 38 NA 0-50 113 17599COBALT mg/Kg 49 70-130 LFM 1.27 56.6 NA 0-50 107 17599BERYLLIUM mg/Kg 49 70-130 LFM 0.34 52.8 NA 0-50 112 17599CHROMIUM mg/Kg 49 70-130 LFM 0.48 55.6 NA 0-50 115 17599 MANGANESE mg/Kg 49 70-130 LFM 0.57 57 NA 0-50 104 17599 NICKEL mg/Kg 49 70-130 LFM 189 240 NA 0-50 70 17599ARSENIC mg/Kg 49 70-130 LFM 18.4 52.8 NA 0-50 104 17599SELENIUM mg/Kg 49 70-130 LFM ND 51 NA 0-50 100 17599CADMIUM mg/Kg 49 70-130 LFM 1.27 50.3 NA 0-50 77 17599ANTIMONY mg/Kg 49 70-130 LFM 0.33 38 NA 0-50 78 17599LEAD mg/Kg 49 70-130 LFM 10.5 48.5 NA 0-50 

### 6020_110620 106 17600 BERYLLIUM mg/L 0.050 70-130 LFM 0.0008 0.054 NA 0-50 102 17600ARSENIC mg/L 0.050 70-130 LFM 0.050 0.101 NA 0-50 96 17600CADMIUM mg/L 0.050 70-130 LFM ND 0.048 NA 0-50 90 17600CHROMIUM mg/L 0.050 70-130 LFM ND 0.045 NA 0-50 90 17600 MANGANESE mg/L 0.050 70-130 LFM 0.039 0.084 NA 0-50 80 17600 NICKEL mg/L 0.050 70-130 LFM 0.168 0.208 NA 0-50 90 17600 LEAD mg/L 0.050 70-130 LFM 0.014 0.059 NA 0-50 118 17600SELENIUM mg/L 0.050 70-130 LFM 0.169 0.228 NA 0-50 100 17600ANTIMONY mg/L 0.050 70-130 LFM ND 0.050 NA 0-50 84 17600COBALT mg/L 0.050 70-130 LFM 0.004 0.046 NA 0-50 106 17600 BERYLLIUM mg/L 0.050 70-130 LFM 0.0008 0.054 NA 0-50 90 17600CHROMIUM mg/L 0.050 70-130 LFM ND 0.045 NA 0-50 90 17600 MANGANESE mg/L 0.050 70-130 LFM 0.039 0.084 NA 0-50 80 17600 NICKEL mg/L 0.050 70-130 LFM 0.168 0.208 NA 0-50 102 17600ARSENIC mg/L 0.050 70-130 LFM 0.050 0.101 NA 0-50



### Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch. NA = Indicates %RPD could not be calculated %RPD = Relative Percent Difference

Only Duplicate sample with detections are listed in this report

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### Reference Number:

## 11-08082 Report Date:

## 6/22/2011 

# Matrix Spike Duplicate QC Spike Spike Spike Percent Recovery Comments Qualifier Limits %RPD Batch Sample Analyte Result Result Result Conc Units MS MSD Limits Type 118 17600SELENIUM mg/L 0.050 70-130 LFM 0.169 0.228 NA 0-50 96 17600CADMIUM mg/L 0.050 70-130 LFM ND 0.048 NA 0-50 100 17600ANTIMONY mg/L 0.050 70-130 LFM ND 0.050 NA 0-50 90 17600 LEAD mg/L 0.050 70-130 LFM 0.014 0.059 NA 0-50 

### HEXCRS-110610 101 17599 HEXAVALENT CHROMIUM ug/g 0.0150 70-130 LFM ND 0.0151 NA 0-50



### Matrix Spike (MS)/Matrix Spike Duplicate (MSD) analyses are used to determine the accuracy (MS) and precision (MSD) of a analytical method in a given sample matrix. Therefore, the usefulness of this report is limited to samples of similar matrices analyzed in the same analytical batch. NA = Indicates %RPD could not be calculated %RPD = Relative Percent Difference

Only Duplicate sample with detections are listed in this report