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I' ~ 002715 3 CURRENTS SOMBRERO MARSH SUCCESS The Boulder Sombrero Marsh is an environmental education center and the location of the Thorne Ecological Institute's headquarters. WWE helped save the valuable marsh via chemistry and working with nature! A representative of the Boulder County Health Department telephoned Ken Wright in 1998 to inquire about suspected high levels of hydrogen sulfide gas (H2S). The Health Department was concerned that a trailer park adjacent to Sombrero Marsh would have to be evacuated. Dr. Robert Weiner and Ken used a sensitive H2S meter to check residential-area gas levels, which measured 1 to 2 parts per million. WWE professionals then analyzed the area's history using aerial photographs, performed a total gas survey, and waded through the marsh. We established the source of the H2S: black gunk at the edge of the water. The evacuation was cancelled, and a management plan was adopted that called for occasional low water periods to emulate natural conditions. CALIFORNIA TRIBE HIRES WWE The Rincon Luiseno Band of Indians in northern San Diego County retained WWE last month. Eric Boos of our Durango office is preparing a non-point source assessment and report for the tribe with Tribal Administrator Rob Shaffer and Environmental Program Director Kristie Orosco and their staff. The report will address issues such as impacts from nitrates that are derived from septic systems? horses and cattle, agriculture, and erosion. Significant erosion throughout the reservation has resulted from the substantial rainfall received since late 2004. WILSON MINE RECLAMATION Reclamation of more than 100 acres of mine spoil at Umetco's Wilson Vanadium Mine near Hot Springs, Arkansas will begin in the next few months. Approvals have been obtained from the Arkansas Department of Environmental Quality and the U.S. Army Corps of Engineers. The bidding process is complete, and final award to the contractor is pending. Dave Jubenville, Dave Mehan, Jeff Nelson, and Rachel Pittinger of WWE enjoy working with Umetco on this rewarding project. CALENDAR AWARDS WWE's 2005 Machu Picchu calendar won a national prize in the Calendar Marketing Association's "most original" category. Blue Cross Blue Shield of Illinois took first place in this category. Under the world calendar category competition, we received an ~ward for best graphic design. In the past, we have won awards for best scenic photography, but for 2005 we chose to use artwork by the National Geographic magazine. Overall top winners included Mutual of Omaha and the Utah Travel Council. If you need another 2005 calendar, just call Deana at 303-480-1700. ASPEN AREA WATER SUPPLY Wayne Lorenz of WWE has commenced design engineering work on a new water supply source for the Pitkin Iron P.U.D. near Aspen. The new well will have a capacity of about twice that of the first well, which Semrau Building Design had drilled under a contract with Shelton Drilling Company. WWE/WEI