First Quarter 2010
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 first quarter of 2010.

QA Sample Type

Number of Sample Results

Number of Results Meeting Criteria

Percentage Meeting Criteria

Spikes/Laboratory Control Samples

160

160

100.0

Field Duplicates

63

59

93.7

Laboratory Splits

22

21

95.5

Recounts

210

209

99.5

Blanks

64

61

95.3

Method Uncertainty

1733

1722

99.4
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First Quarter 2010
INL Quarterly Site Environmental Report
Return to Index