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<br />e <br /> <br />e <br /> <br />e <br /> <br />Using Geotextiles and Biotechnical Stabilization to <br />Improve Storm Water Quality <br />R. Lee Pierce <br />Synthetic Industries <br />40 19 Industry Drive <br />Chattanooga, TN 37416 <br />Phone: (800) 621-0444 <br />1998 CASFM Conference, September 30 - October 2, 1998 <br /> <br />ABSTRACT <br /> <br />More stringent non point source source source source source source source source source <br />pollution and water quality regulations are forcing engineers to take a second look at erosion <br />control plans for constmction projects around the world. Regulations governing these issues are <br />moving to the forefront of constmction planning and design since sediment, the by-product of <br />erosion, has been identified as the number one pollutant of natural waterways. Although there are <br />several ways to meet water quality regulations, one of the fastest growing methods is biotechnical <br />stabilization. <br /> <br />Biotechnical stabilization refers to the integration of mechanical elements (or stmCtures) in <br />combination with biological elements (plants)l As the mechanical element ofbiotechnical <br />stabilization, turf reinforcement mats and three-dimensional woven geotextiles enhance seedling <br />development and reinforce the vegetation to drastically improve erosion resistance. These <br />systems proactively integrate engineering and plant science principles to limit soil movement <br />before it starts. The natural appearance and filtration capabilities of these systems makes <br />biotechnical stabilization a very appealing addition to traditional stormwater, drainage and erosion <br />control designs. <br /> <br /> <br />This paper will: (1) review current regulations with repect to the Clean Water Act, NPDES Phase <br />I & 2 and Non-Point Source Pollution; (2) Highlight slope and channel projects utilizing turf <br />reinforcement mats( TRMs ) and a three dimensional woven geotextile - to extend the use of <br />vegetative covers to take advantage of the filtration and sediment capture abilities of vegetated <br />systems for improved water quality; (3) Cost effectiveness, maintenance, and liability concerns <br />will also be addressed. <br /> <br />I Gray, D. H. and R. B. Sotir (1996). Biotechnica1 and Soil Bioengineering Slope Stabilization: A Practical Guide <br />for Erosion Control. New YOlk: Wiley <br />