Dam or Filter – What’s the Difference When it Comes to Sediment Control?
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Sediment control solutions in the best management practice (BMP) toolbox are plentiful today. Both natural and manufactured options exist. Selecting the proper solution for a project can be challenging at times because there are so many choices. One key factor of sediment control products is whether or not they allow stormwater through them. Sediment control products can be separated as damming and filtering products. Filtering products are defined as those with a flow rate of ≥35 GPM/ft2 according to ASTM D5141. Damming products are designed with a flow rate of < 35 GPM/ft2. Matrix density is also an important factor to consider that is related to the flow rate of the sediment control solutions. Damming and filtering products react differently during hydraulic events. As a result, the products have their limitations and are not interchangeable. Benefits of each type of sediment control products will be discussed along with performance differences in various applications./p>
Business Development Manager
Mr. Craig Shultz is employed by American Excelsior Company - Earth Science Division - Arlington, TX, as the Business Development Manager. Mr. Shultz graduated from the University of Kansas. He has worked on numerous E&S control projects and has experience with rolled erosion controls blankets, Turf Reinforcement Mats, hydraulic mulches, Alternative Daily Landfill Cover and other erosion and sediment control products. He is an active member of ASTM where he serves as the Chairman of Task Group D18.25.08 (Sediment Control). Mr. Shultz participates in the Erosion Control Technology Council (ECTC). In addition, Mr. Shultz is an industry member on the National Transportation Product Evaluation Program (NTPEP) Technical Committee on Erosion Control Products and Sediment Retention Devices.