Laserfiche WebLink
Is Data V (circle) Preservation Temperature <br /> ( If Known ) <br /> YES ) <br /> Unknown (°C) <br /> Stantec Lab Validation Form <br /> Project/Client : Chevron 92033 - Stockton Charter Way Commingled Plume <br /> Project No . : 211602057 <br /> Lab Work Order No . . 84721 <br /> Date of Validation : 04/29/2013 <br /> Date of Analysis : 04/26/2013 <br /> Date of Sampling . 04/26/2013 <br /> Completed By : Jose Yan <br /> Circle/Highlight <br /> Signature : Yes or No <br /> 1 . Was the analysis the one requested ? es No <br /> 2 . Do the sample number(s) on the chain- of- custody (COC) match the one (s) that appear on es No <br /> the laboratory data sheet? <br /> 3 . Were samples prepared (extracted , filtered , etc . ) within EPA holding times? Yes No <br /> 4 . Once prepared/extracted , were the samples analyzed within the EPA holding times ? Yes No <br /> 5 . Were Laboratory blanks performed , if so , were they below non-detect? No <br /> 6 . Are the units correct? (i . e . , soil samples in mg /kg or pg/g , water samples mg /L , pg/L , and air Yes No <br /> samples in volume mg/m^3 , etc . ) <br /> 7 . Were appropriate Matrix Spike ( MS ) and Matrix Spike Duplicate ( MSD) samples included in Yes No <br /> the laboratory batch sample? <br /> 8 . In lieu of MS/ MSD , were surrogate spike (SS ) or surrogate spike duplicate ( SSD) samples es No <br /> included in the laboratory batch samples ? <br /> 9 . Were MS/ MSD (or SS/SSD ) within the acceptable range of % recovery ( i . e . , approx 80- es No <br /> 120 % depending on analyte) ? <br /> 10 . Were MS/MSD (or SS/SSD) values used to calculate Relative Percent Difference (RPD ) ? es No <br /> 11 . Were RPD values within the acceptable range ( i . e . ± 25 %) ? <br /> es No <br /> If any answer is no , explain why and what corrective action was taken : <br /> Lab Validation Form . doc Stantec <br />