How to Use Sediment Filter Bags to Remove Rock Chips and Silt from Drilling Water

Presented on Tuesday, November 29, 2011

This presentation will show you how to use sediment filter bags as a best management practice to contain cuttings and control the quality of the drilling water discharged from your site. Sediment filter bags are being widely used on bridge construction jobs where there is no room to construct a sedimentation basin. Muddy, sediment-laden water is pumped from the bridge pier excavations and is discharged through a sediment filter bag where almost all of the suspended sediment is contained. The almost sediment-free water discharges through the fabric walls of the bag and flows into the stream. This best management practice technique is also very useful in controlling and containing rock cuttings, silt, and clay in the muddy drilling water produced during the air-rotary drilling of water wells and geothermal loop boreholes. Sediment filter bags will help you comply with the local erosion and sediment control regulations at your drilling site.

Todd Giddings, Ph.D., P.G.
Todd Giddings and Associates Inc., State College, PA
Todd Giddings, Ph.D., P.G., is a registered professional geologist, and the principal hydrogeologist and president of Todd Giddings and Associates, Inc. He has more than 40 years of experience in ground-water resources development, management, and remediation. His areas of professional interest are water-resources education, karst hydrogeology, and geothermal heat pump system training. He is a Director and Treasurer of the Pennsylvania Ground Water Association, Chairman of their Education Committee, and is Webmaster of their Web site at . He has organized hands-on demonstrations of innovative drilling technologies at the Summer Field Conferences of the PGWA.
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