Second 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.

Data completeness for sample collection and delivery was 100 percent during the second quarter. There were two air samples that had volumes below the 7000 ft3 (200 m3) threshold for a valid sample. Both were at the Blackfoot location. One involved the station manager unplugging the sampler and the second resulted when the school sprinkler system caused the sampler GFCI to trip repeatedly.

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 2010.
 

QA Sample Type

Number of Sample Results

Number of Results Meeting Criteria

Percentage Meeting Criteria

Spikes/Laboratory Control Samples

169

169

100.0

Field Duplicates

66

63

95.5

Laboratory Splits

29

28

96.6

Recounts

185

185

100

Field Blanks

70

70

100

Method Uncertainty

1830

1801

98.4
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Second Quarter 2010
INL Quarterly Site Environmental Report
Return to Index