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There are numerous potential and actual sources of groundwater contamination in the State, both natural and manmade. Arkansas Department of Environmental Quality (2012) identified the 10 major sources of contamination in Arkansas to be animal feedlots, fertilizers, pesticides, underground storage tanks, surface impoundments, landfills, septic systems, hazardous wastes sites, saltwater ...
A septic drain field, a septic tank, and associated piping compose a septic system. The drain field typically consists of an arrangement of trenches containing perforated pipes and porous material (often gravel) covered by a layer of soil to prevent animals (and surface runoff) from reaching the wastewater distributed within those trenches. [1]
A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic sewage treatment. [2] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [2]
The mound system was designed in the 1930s by the North Dakota College of Agriculture. [1] and was known as the Nodak Disposal System.In 1976, the University of Wisconsin studied the design of mound systems as part of the university's Waste Management Project.
The aeration stage and the disinfecting stage are the primary differences from a traditional septic system; in fact, an aerobic treatment system can be used as a secondary treatment for septic tank effluent. [1] These stages increase the initial cost of the aerobic system, and also the maintenance requirements over the passive septic system.
In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.
The Arkansas Department of Energy and Environment is a cabinet level agency in the executive branch of Arkansas government responsible for implementation of the rules and regulations regarding the management of natural resources and protecting the environment of the state.
Arsenal Water System 2577 Pine Bluff, Arkansas: Ground Ash Flat Water Company 1097 Ash Flat, Arkansas: Ground Ashdown Waterworks 4723 Ashdown, Arkansas: Ground Atkins Water System 4439 Atkins, Arkansas: Surface Augusta Waterworks 2665 Augusta, Arkansas: Ground Aurelle Water System 296 Strong, Arkansas: Ground purchased Austin Waterworks 2436 ...