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l� <br />l� <br />C <br />n <br />n <br />u <br />0 <br />11 <br />C <br />UST/AST Programs & Forensics: <br />CAS performs analyses of samples collected around underground and aboveground <br />storage tanks for solvent content and for identification of petroleum hydrocarbons <br />under the regulations of various state and federal agencies. We also analyze <br />underlying soils to assess tank leakage and performed soil gas investigations to <br />pinpoint the extent of product release. CAS has senior chemists trained in the aspects <br />of petroleum hydrocarbon forensics. In addition to overseeing specific forensics testing <br />procedures, our chemists also provide technical consulting and litigation support <br />services. <br />Dioxin Analysis: <br />CAS/Houston provides full service dioxin testing where both high and low resolution <br />GCMS methodologies are performed on a variety of sample matrices: XAD <br />resins/filters, sediments, tissues, paper, ash, soil, water and waste. Methodologies <br />employed by CAS/Houston include: EPA 8290, EPA 8280A, EPA 613, EPA 1613, <br />EPA 1613A and EPA 23 (air). <br />Technical Services <br />CAS offers a variety of technical services to support our clients' needs. These include <br />method development, analytical scope consulting, forensics, litigation support and <br />electronic data management support. Our Technical Services Group is comprised of <br />an interdisciplinary team of specialists expert in fields such as: air testing services, <br />forensics, electronics industry, pulp and paper industry, marine toxicology, risk <br />assessment and information technology. <br />Technical Consulfina <br />The experience and technical depth of our laboratory personnel enables CAS to offer <br />our clients a variety of technical consulting services. Our chemists are routinely asked <br />to review historical data sets to provide a technical evaluation. We also assist in the <br />development of sampling, analytical and quality assurance project plans. Some of our <br />senior technical staff are available to provide litigation support and expert witness <br />services. Our operations are able to provide on-site laboratory services when <br />necessary, which can include laboratory design consulting and recommendations. <br />Page 26 of 29 <br />