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f a !i! E N e o A S E S T U D La Pine, Oregon: Textile Filter Technology Showcased in National EPA Study $end,Oregon-,on the edge of a fragile high desert ecosystem, has experienced booming development, resulting in a number of problems, including nitrate pollurion:!Nitrate"hot spots" 1 �, ; asE in the aquifer were traced to high-density septic systems.With the county's population projected to double over the next 20 years,groundwater modeling suggests that nitrate levels will increase further. To complicate matters,nearly 1,800 lots near Bend have a shat- In La Pine, Oregon, an EPA wastewater low Fater table of two feet or less. Highly permeable pumice- demonstration project includes six of Orenco's derived soils give little protection to the underlying aquifer–the AdvanTex—Treatment Systems, main drinking water source–or to the nearby Deschutes River, an internationally famous trout stream.Environmental regula- tions now prohibit some septic systems on lots with high water tables,and development is too dispersed for a centralized sewage "The textile filter has the system.Extreme temperatures in the cold,high-altitude desert # advantages of being much smaller pose additional challenges for wastewater treatment, than a sand filter,and of being pre fabricated. We don't have the In the community of La Pine, Orenco Sysrems'Inc.is actively variability in performance depending participating with the county and with state agencies to demon- on how clean and how well graded strate a new technology for onsite wastewater treatment with the sand i It's also more advanced denitrification capabilities. Orenco provided design convenient to install." g engineering and system components for two innovative Bijan Pour,Ph.D. AdvanTexTM-RX30 and four AdvanTexTM-AX20 Treatment 7 Soil Scientist Systems,which !� ys , use a highly absorbent textile treatment media. Oregon Department of Environmental Quality One of the systems–installed in less than 12 hours at the first of two Habitat for Humanity houses,on Swan Road–began operation in February 1999. Filtrate from the 4'x8'x2.5'pre- fabricated module recirculates through the processing tank, then to a pump basin for pressure discharge.Closely monitored by Qeenco Systems the state DEQ this installation, along with an installation at a Incorporated second Habitat house next door,now receives additional third Changing the Wary the World!Jots wattem to party testing,These two sites are part of a National Community! 1-800-348-9843 www.arenco.corn (Continued on back)