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Section No: 5 <br />Page: 1 of 30 <br />Revision No: 2.0 <br />Date: January 15, 1994 <br />The quality assurance objectives for accuracy, precision, and Detection Limits for Reporting <br />(DLR) are listed in Tables 5-1 (Drinking Water Methods), 5-2 (Wastewater / Hazardous Waste <br />Liquid Methods) and 5-3 (Solid Waste / Hazardous Waste Solids Methods). <br />Accuracy - is based on the recovery measurement of a target analyte after known addition to a <br />given sample or representative sample matrix (see section 14.2). Accuracy values are <br />expressed as the percent recovery of the known value, and serve as a reflection of the total <br />measurement error (random and systematic). The acceptance ranges for recovery <br />i (%REC-AR) are used for data validation. <br />Precision - is based on the difference measurement of duplicate data points (see section 14.1). <br />Precision values are expressed as relative percent difference D) and serve as a reflection of <br />the variability in measurement replication. Surrogates are not run in duplicate, so RPDs are <br />not applicable. The Maximum Acceptance Value for the RPD's D -MAV) are used for data <br />validation. <br />Detection Limit for Reporting (DLR) - is the routine detection limit FGL uses for reporting <br />purposes. Detection limit studies are performed continually (see section 11.1.2.2) to ensure <br />that the objectives listed in this section are met or exceeded. Surrogates are required for <br />quality assurance purposes only. Therefore, DLR information is not necessary. <br />Completeness - FGL is currently introducing controls to document incomplete reports. These <br />are reports that are known to lack information at the time of delivery or reports where we are <br />notified by the client that information is not complete. Future QA manuals will have the <br />results for data completeness documented. <br />TABLE 5-1 Quality Assurance Objectives for Drinking Water Methods <br />ACCURACY <br />PRECISION <br />DLR <br />CONSTITUENT <br />% REC-AR <br />RPD -MAV <br />ugh <br />EPA Method 501.2 <br />Bromodichloromethane <br />70-130 <br />20 <br />0.5 <br />Bromoform <br />70-130 <br />20 <br />0.5 <br />Chloroform <br />70-130 <br />20 <br />0.5 <br />Dibromochloromethane <br />70-130 <br />20 <br />0.5 <br />EPA Method 502.2 <br />Surrogates <br />BFB <br />70-130 <br />N/A <br />N/A <br />Fluorobenzene <br />70-130 <br />N/A <br />N/A <br />Chlorofluorobenzene <br />70-130 <br />N/A <br />N/A <br />Analytes <br />-. Benzene <br />37-151 <br />30 <br />0.5 <br />Bromobenzene <br />50-150 <br />30 <br />0.5 <br />Bromochloromethane <br />50-150 <br />30 <br />0.5 <br />Bromodichloromethane <br />35-155 <br />30 <br />0.5 <br />Bromoform <br />45-169 <br />30 <br />0.5 <br />Bromomethane <br />D-242 <br />30 <br />0.5 <br />n-Butylbenzene <br />50-150 <br />30 <br />0.5 <br />sec-Butylbenzene <br />50-150 <br />30 <br />0.5 <br />tert-Butylbenzene <br />50-150 <br />30 <br />0.5 <br />