EP 1110-1-28
31 Aug 01
ACCEPTANCE LIMITS
DATA ATTRIBUTE
SINGLE WIPE
COMPOSITE WIPE
PAINT CHIP
SOIL
Frequency
Within 20% of Known Value
Within 20% of Known Value
Within 20% of Known Value
Within 20% of Known Value
LABORATORY
CONTROL
SAMPLE
(LCS)
One per 20 Samples or Batch-Minimum
Frequency 5%
MATRIX SPIKE SAMPLE (MSS)
Within 25% of Calculated Value
Within 25% of Calculated Value
Within 25% of Calculated Value
Within 25% of Calculated Value
One per 20 Samples or Batch-Minimum
Frequency 5%
Within 25% Relative Percent
Within 25% Relative Percent
Within 25% Relative Percent
Within 25% Relative Percent
DUPLICATE FIELD SAMPLE (DFS)
Difference (RPD)
Difference (RPD)
Difference (RPD)
Difference (RPD)
One per 20 Samples or Batch-Minimum
Frequency 5%
MATRIX BLANK (MB)
Absolute Value Not More Than
Absolute Value Not More Than
Absolute Value Not More Than
Absolute Value Not More Than
10% of Regulatory Limit of
10% of Regulatory Limit of
10% of Regulatory Limit of
10% of Regulatory Limit of
Level of Concern
Level of Concern
Level of Concern
Level of Concern
One per 20 Samples or Batch-Minimum
Frequency 5%
Adapted from Table 1, EPA NLLAP Laboratory Quality System Requirements (LQSR) Revision 2.0, August 1, 1999
B-8
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