First Quarter 2011
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 first quarter, with the following exceptions.  

There were two air samples that had volumes below the 7,000 ft3 or 200 m3 threshold listed in the air sampling procedure as being a valid sample.  Both were due to faulty pumps.

Two milk samples were not collected in the first quarter.  The goat dairy in Blackfoot was not operating in January and February.

Sample results are compared to criteria described in the Quality Assurance Project Plan for the INL Site Offsite Environmental Surveillance Program (GSS 2011). The following table summarizes the results of the quality assurance program for the first quarter of 2011.


 

QA Sample Type

Number of Sample Results

Number of Results Meeting Criteria

Percentage Meeting Criteria

Spikes/Laboratory Control Samples

176

176

100.0

Field Duplicates

61

58

95.1

Laboratory Splits

29

28

96.6

Recounts

163

163

100.0

Blanks

69

57

982.6

Method Uncertainty

1303

1275

97.8
       

 



 

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First Quarter 2011
INL Quarterly Site Environmental Report
Return to Index