Laserfiche WebLink
I <br /> %t; ACCob <br /> V-11 will T <br /> STL <br /> O���OI y 04ti <br /> a — ,. <br /> STL Sacramento Certifications/Accreditations <br /> Certificate# <br /> Certifying State Cc rtif icate# Certifying State <br /> �t Alaska UST-055 4 on _ CA 200005 <br /> Arkansas NA South Carolina 87014001Uri LIHM:�§E.�PMNA <br /> { <br /> Connecticut PH-0691 Virinia 00178 <br /> Geor iay' 9.60 West Vir inia 9930C, 334 <br /> ' ki <br /> - 9uiat 9 � � � amiss•.� ., r,► �� g�$��'4'6�1��,�,.: <br /> Louisiana' 01944 NFESC NA = j <br /> New Jersey* CA005 USDA Foreign Plant 37-82605 <br /> - Qar.�...hF. 1��•Y,fl��C', ':- ''. ,•;'� t}_�``d.'.- .•;c, '.Y�f� ." t. .�-i'Gl�_.•-.-1..x- <br /> MM"6� -�46b'13A� <br /> 'NELAP accredited. A more detailed parameter list is available upon request. <br /> QC Parameter Definitions <br /> OC Batch:The QC batch consists of a set of up to 20 field samples that behave similarly(i.e., same <br /> matrix) and are processed using the same procedures, reagents, and standards at the same time. <br /> Method Blank: An analytical control consisting of all reagents,which may include internal standards <br /> and surrogates,and is carried through the entire analytical procedure. The method blank is used to <br /> define the level of laboratory background contamination. <br /> Laboratory Control Sample and Laboratory Control Sample Duplicate(LCS/LCSD): An aliquot <br /> of blank matrix spiked with known amounts of representative target analytes. The LCS (and LCSD as <br /> required) is carried through the entire analytical process and is used to monitor the accuracy of the <br /> analytical process independent of potential matrix effects. If an LCSD is performed, it may also used .:• <br /> to evaluate the precision of the process. <br /> Duplicate Sample(DU): Different aliquots of the same sample are analyzed'to evaluate the <br /> precision of an analysis. <br /> Surrogates: Organic compounds not expected to be detected in field samples, which behave { <br /> similarly to target analytes. These are added to every sample within a batch at a known <br /> concentration to determine the efficiency of the sample preparation and analytical process. <br /> Matrix Spike and Matrix Spike Duplicate(MS/MSD): An MS is an aliquot of a matrix fortified with <br /> known quantities of specific compounds and subjected to an entire analytical procedure in order to <br /> indicate the appropriateness of the method for a particular matrix. The percent recovery for the <br /> respective compound(s) is then calculated. The MSD is a second aliquot of the same matrix as the `= <br /> matrix spike,also spiked, in order to determine the precision of the method. If <br /> Isotope Dilution: For isotope dilution methods,isotopically labeled analogs (internal standards)of <br /> the native target analytes are spiked into the sample at time of extraction. These internal standards <br /> are used for quantitation, and monitor and correct for matrix effects. Since matrix effects on method <br /> performance can be judged by the recovery of these analogs,there is little added benefit of <br /> performing MS/MSD for these methods. MS/MSD are only performed for client or QAPP <br /> requirements. <br /> Control Limits: The reported control limits are either based on laboratory historical data, method <br /> requirements,or project data quality objectives. The control limits represent the estimated <br /> uncertaintyof the test results. <br /> Revised 9/9103 PAS <br /> G3i260341 STL-Sacramento(9 i 6)373-5600 2 of 42 <br /> i` <br />