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Site-Specific Health and Safety Plan (HASP) - Laschools.org

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Table 8-1 Flagging Conventions for Data Evaluation <strong>and</strong> Validation of Organic Methods<br />

LAUSD, South Gate, California<br />

Quality Control Check Evaluation Flag Samples Affected<br />

Breakdown check (DDT)<br />

(SW8080A)<br />

Breakdown check (Endrin)<br />

(SW8080A)<br />

% Breakdown for DDT > 20% J positive DDT, DDE, <strong>and</strong> DDE<br />

results<br />

R non-detects for DDT if DDD <strong>and</strong><br />

DDE are positive<br />

%Breakdown for Endrin > 20% J positive endrin, endrin aldehyde,<br />

<strong>and</strong> endrin ketone results<br />

R non-detects for endrin if endrin<br />

aldehyde <strong>and</strong> endrin ketone are<br />

positive<br />

Samples following the last in control<br />

st<strong>and</strong>ard<br />

Samples following the last in control<br />

st<strong>and</strong>ard<br />

a/ MS/MSD = Matrix spike/matrix spike duplicate. k/ RPD = Relative percent difference.<br />

b/ NFG = National Functional Guidelines. l/ Common lab contaminants: methylene chloride, acetone, 2-butanone, <strong>and</strong> phthalates.<br />

e/ GC/MS = Gas chromatograph/mass spectroscopy m/ %R = Percent recovery.<br />

d/ RRF = Relative response factor. n/ Number of surrogates varies with method. Pesticides <strong>and</strong> PCBs are surrogate specific<br />

e/ GC = Gas chromatography <strong>and</strong> are evaluated as independent chemical family groups.<br />

f/ RT = Retention time. o CCAL = Continuing calibration<br />

s/ RSD = Relative st<strong>and</strong>ard deviation<br />

h/ %D = Percent difference.<br />

i/ UCL = Upper control limit.<br />

j LCL = Lower control limit.<br />

K:\Depts\Dept48\LAUSD\MSA WORK\Soil Investigation\OU 1 RAP\Appendix\Appendix H - QAPP\Tables.doc 5/7/2008<br />

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