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... . <br />WATER <br />WASTE <br />& LAND <br />June 11, 1992 <br />Mr. Dean Massey <br />Parcel, Mauro, Hultin 8 <br />1801 California Street, <br />Denver, CO 80202 <br />Dear Mr. Massey: <br />As requested, <br />that summariz <br />environmental <br />2629 Redwing Rd. Suite 200, Fort Coll ns, Colorado 80526 <br />(303)226.3535 <br />fax (303) 226-6475 <br />Spaanstra, P.C. <br />Suite 3600 <br />~c~~~~~ <br />JUN 1 R 1992 <br />Parcel, Ma r0, Hultin 8 <br />_ Spaans ra, P.C. <br />F~~~ ~V~-'~1 <br />UN 11 2 1992 <br />Mme~l Land <br />next '^~f n n• <br />enclosed are two copies each of our brochure and Statement of uali~ cations (SR5Y11 <br />e the capabilities of Water, Waste & Land, Inc. Water, Waste & Land, I c. IWWL), an <br />and engineering consulting firm, has extensive experience in t <br />implementation of surface and ground water monitoring systems. We have performet <br />sampling programs that have ranged from baseline monitoring to complex and extent <br />programs that incorporate stringent quality assurance and quality control IQA/QC <br />Custody procedures. For example, on one recent project we collected surface ware <br />quarterly basis at approximately 25 stations over a relatively large geographical area <br />were collected following detailed procedures. Due to the number of constituents lint <br />being analyzed, each sample consisted of seven separate containers preserved and <br />different procedures. Quality control procedures included the collection of frequent dt <br />design and <br />surface water <br />ive monitoring <br />and Chain of <br />samples on a <br />The samples <br />ding cyanide) <br />handled using <br />plicate, matrix <br />spike, equipment rinsate, and field blank samples. On another recent project~we collected <br />approximately 500 surface water samples (including QA/QC samples) over a latively large <br />geographical area in an approximate two week time period. <br />The majority of surface water sampling programs that we have performed have been t mining sites. <br />Typically, the objectives of these programs have been to characterize the quality of surface water <br />systems, and to identify and evaluate the effects of the mining operation on surface water quality. <br />WWL has been responsible for surface water sampling at several CERCLA mining sit s in Colorado. <br />At these sites, we have developed detailed sampling and analyses plans that comp) with State of <br />Colorado or Environmental Protection Agency requirements, as well as, performing th sampling. In <br />several cases, we have been asked to provide technical oversight of sampl ng programs. <br />Responsibilities for these projects have included reviewing the sampling pan, providing <br />recommendations for modification of the sampling procedures and observing sampling ethods in the <br />field. <br />At many of the mine sites that we have performed sampling, cyanide concentrations h ve been a key <br />concern. We are familiar with proper procedures for collection, preservation, and ha dling of water <br />quality samples for determination of cyanide. We are also aware of conditions w ich can affect <br />cyanide concentrations, such as volatilization, inadequate sample preservation and matri interferences. <br />As part of monitoring programs, we have evaluated QA/OC data to ensure the reliabi'ty of resulting <br />water quality data and to reduce effects caused by sample collection procedures. <br />I trust that the enclosed SOO will provide you with sufficient information to evaluate Fhe capabilities <br />of WWL in regard to your specific needs. If you have any questions or require additio al information, <br />please do not hesitate to call. <br />Consulting Engineers and Sciennsts <br />