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A pond liner is an impermeable geomembrane used for retention of liquids, including the lining of reservoirs, retention basins, hazardous and nonhazardous surface impoundments, garden ponds and artificial streams in parks and gardens.
Geosynthetic clay liners (GCLs) are factory manufactured hydraulic barriers consisting of a layer of bentonite or other very low-permeability material supported by geotextiles and/or geomembranes, mechanically held together by needling, stitching, or chemical adhesives. Due to environmental laws, any seepage from landfills must be collected and ...
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The system may consist of a single pond or several ponds in a series, each pond playing a different role in the removal of pollutants. After treatment, the effluent may be returned to surface water or reused as irrigation water (or reclaimed water ) if the effluent meets the required effluent standards (e.g. sufficiently low levels of pathogens ).
In 2003, Cargill sold the bulk of its salt ponds to the California Coastal Conservancy, the United States Fish and Wildlife Service, and private foundations with the goal of restoring the ponds to wetlands. This effort is known as the South Bay Salt Pond Restoration Project. [11] [12] Not all the salt ponds are being restored.
Storm water is typically channeled to a retention basin through a system of street and/or parking lot storm drains, and a network of drain channels or underground pipes.. The basins are designed to allow relatively large flows of water to enter, but discharges to receiving waters are limited by outlet structures that function only during very large storm eve
Fresh Pond is a small unincorporated community in El Dorado County, California. [1] It is located 3 miles (4.8 km) east of Pollock Pines, [2] at an elevation of 3606 feet (1099 m). [1] The ZIP code is 95726. The community is inside area code 530. Fresh Pond was a lumbering community in the 1800s, with a sawmill and a stop on the Pony Express ...
Lake ecosystems can be divided into zones. One common system divides lakes into three zones. The first, the littoral zone, is the shallow zone near the shore. [5] This is where rooted wetland plants occur. The offshore is divided into two further zones, an open water zone and a deep water zone.
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