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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: i <br /> CAS/Houstonrovides full service dioxin in 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 /> f� <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 interclisciplinary 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 Consulting <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 /> I <br /> I <br /> Page 26 of 29 j <br />