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i CALIFORNIA WATER LAF <br /> QUALITY A33URANCMUALITY C6NTROL <br /> 11iANADEMENT 3UL ARY <br /> • (Conftnwd] <br /> our modern equipment systems include TOC and TOX analyzers,AAs,HPLC.DCP, <br /> Finnigan 5100 GC/MS systems configured with an IBM-PC/AT and Foremaster <br /> software, and a versatile range of gas chromatographs with 4-channel data systems, <br /> detectors, purge and trap units.headspace analyzers, and other ancillary equipment <br /> to perform specific tasks. <br /> y field Services <br /> Few analytical labs in the United States are as readily prepared to help clients at <br /> the point of origin. CWL has staff specialists to operate its pumping and sampling <br /> equipment and field instrumentation, and provide sample transport The on-site <br /> service is indispensable when EPA requires third-party handling under its supervi- <br /> sion: it also can be more cost-effective for a client than having its own sampling <br /> equipment and know-how at the site in normal circumstances. The CWL field team <br /> is also prepared for emergency sampling when spills or other accidents require quick <br /> Identification of possibly hazardous materials. <br /> Consulting <br /> CWL can prepare sampling and analysis plans and evaluate the effectiveness of <br /> e.-dsting plans for clients seeking to obtain and maintain monitoring, discharge. and <br /> storage permits. A commonly occurring example is that CWL first conducts a <br /> treatability study of a Rraste stream according to terms of a permit; then it develops <br /> ' in the lab a prototype of removal/reduction chemistry for the ChA mt to apply at full <br /> scale; and then it samples and analyzes the installed process to confirm regulatory <br /> compliance. Similarly. CWL assists landf M operators with the stricter groundwater <br /> sampling/analysis plans mandated under RCRA. <br /> in this new era of stricter demands for protecting the environment, CWL offers <br /> clients not only laboratory and on-site service of the highest quality but also the kind <br /> of technical advice and expertise that lends confidence to planning. <br /> QUALITY ASSURANCE <br /> Sample Collection and Preservation <br /> Quality assurance begins at the time of sampling and includes protocol relating to: <br /> O Grab and Composite Sampling <br /> ❑ Sampling for Bacteriological Analysis <br /> y ❑ Sampling of Monitoring Wells by Pumping and Bailing <br /> O Sampling at Underground Storage Tank Sites <br /> ❑ Physical Field Measurements <br /> ❑ Field Equipment Calibration <br /> O Field Sample Preservation <br /> o Air Sampling <br /> ❑ Field QC Samples <br /> 2 <br />