Second Quarter 2007
INL Quarterly Site Environmental Report
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Quality Assurance

The ESER Quality Assurance Program consists of five ongoing tasks which measure:

  1. method uncertainty
  2. data completeness
  3. data accuracy, using spike, performance evaluation and laboratory control samples
  4. data precision, using split samples, duplicate samples and recounts
  5. presence of contamination in samples, using blanks.

Sample results are compared to criteria described in the Quality Assurance Project Plan for the INL Site Offsite Environmental Surveillance Program (Stoller 2007). The following table summarizes the results of the quality assurance program for the second quarter of 2007.

QA Sample Type

Number of Sample Results

Number of Results Meeting Criteria

Percentage Meeting Criteria

Spikes/Laboratory Control Samples

252

248

98.4

Field Duplicates

66

66

100

Laboratory Splits

22

22

100

Recounts

144

144

100

Blanks

69

69

100

Method Uncertainty

1687

1658

98.3


 

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Second Quarter 2007
INL Quarterly Site Environmental Report
Return to Index