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Article: In-situ liquid storage capacity measurement of subsurface wastewater absorption system products.(FEATURES)
- Article from:
- Journal of Environmental Health
- Article date:
- November 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 National Environmental Health Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
In the United States, onsite wastewater treatment systems serve 25 percent of existing homes and 37 percent of new residential construction. Conventional systems consist of a septic tank that discharges to a subsurface wastewater infiltration system (SWIS) constructed with gravel-filled trenches. Over the past 30 years, gravelless products have been replacing gravel in the trenches. These alternative products include molded plastic chambers, precast concrete galleys, multiple bundled pipes, plastic and geo-textile composites, and pipe and expanded polystyrene (EPS) bundles. All these manufactured products provide temporary storage for septic-tank ...