Demonstration Project Database

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Rockbridge, Missouri

Background
The Rockbridge site was chosen because it resides in a major geological area of karst terrain that includes fractured limestone bedrock, sinkhole plains, and caves with underground drainage systems. The residential sites (five) chosen lie within a major sinkhole plain with most of the underground drainage going to Devils Icebox Cave, which runs through the park. In addition, the soils of the area are high in clay content with moderate to high shrink-swell potential and low permeability.


Objective
The objective of this project is to demonstrate innovative/alternative onsite wastewater technologies that protect ecological and water quality in an environmentally sensitive karst terrain.



Centerville, Pennsylvania

Background
The Centersville project is situated in southern Bedford County, Cumberland Valley Township, which comprises the entire watershed of Evitts Creek that drains into Koon and Gordon Lakes. These lakes provide water for more than 50,000 customers in parts of Pennsylvania, Maryland, and West Virginia and are owned by the City of Cumberland, Maryland. There are about 45 residences in the village of Centerville, where most onsite systems failed or were inadequate, malfunctioning, or discharging directly into a ditch or stream. A school that closed permanently has a treatment plant which will be used/retrofitted to serve the cluster of homes.


Objective
The objective of this project is to identify the number of malfunctioning or direct discharge systems and connect them to a system that will serve the majority of the homes (cluster), thus protecting public health and water quality.



Green Hill Pond, Rhode Island

Background
The Green Hill Pond is an approximately 400-acre, poorly flushed coastal lagoon along the southern Rhode Island coastline that has experienced pronounced water quality degradation in recent years from nonpoint-source pollution inputs. The Green Hill Pond watershed is approximately six square miles in area with about 2,200 housing units. Since 1993, Green Hill Pond has been permanently closed to shellfishing due to elevated bacterial levels. The main cause of pollution is marginally functioning and failed septic systems, which have contributed to shellfish closures due to high fecal coliform counts and eutrophication from excess inputs of nitrogen.


Objective
The objective of this project is to retrofit up to five failed conventional septic systems in the Green Hill Pond Watershed with alternative and innovative onsite systems.



Warren, Jericho, Addison, and Windham Vermont

Background
According to the document "An overview of problems and recommendations for action," the Vermont Agency of Natural Resources states that Vermont's sewage disposal regulations are a conglomeration of rules that fail to provide adequate protection of public health. The major problems include a significant number of systems that are failing, great variation in the oversight of construction, and encouragement of poor land use. In addition, permits for innovative systems are hard to obtain. There are five different participants in this project: Vermont State Housing Authority, Addison County Demonstration Project, Town of Jericho, Town of Warren, and the Windham Regional Commission.


Objectives

Vermont State Housing Authority
Design and install at least two alternative systems to serve up to ten homes for the mobile home park. Develop an education program on the proper operation and maintenance of wastewater systems.

Addison County
Continue and complete monitoring of four onsite systems constructed as a demonstration originally funded by Lake Champlain Basin Program. Provide lessons learned on construction and maintenance beyond the information given by the manufacturers and expand on public distribution of the results.

Town of Jericho
Develop a wastewater management district, including in-ground work needed, such as the identifying the location of septic tanks and installing risers to mark their location for the future.

Town of Warren
Address the multiple failures in the Warren village by identifying problems, evaluating alternative solutions, and prioritizing action. Create and implement a wastewater management district to serve as a model for other towns.

Windham Regional Commission
Design and provide a broad education on alternative systems through five to six regional seminars. Develop a pilot administrative and technical assistance program for local officials with the Vermont Agency of Natural Resources in their permit programs.



Burnett, Washington

Background
The town of Burnett is located on South Prairie Creek, which is one of the largest salmon producers in the Puyallup River basin, in Washington. As with many coal mining towns, when the coal was gone so were most of its workers. What was left behind were the coal mines, shafts, tunnels, cave-ins, old sewer lines that usually discharged directly to the nearest stream, water systems of all sorts, and a town that was not planned but placed over top of the mines. It is riddled with old coal tunnels that are macro-arteries to groundwater contamination from onsite systems. Many of the homes dispose septic tank effluent into mine shafts, groundwater, and creeks, doing nothing to ensure proper treatment before disposal.


Objective
The objective of this project is to identify, correct, and reduce the conditions that cause improper functioning of onsite wastewater systems, eliminating the risk to public health, and protecting the various water sources and environment.



Monongalia County, West Virginia

Background
Monongalia County, located in North-Central West Virginia, has suffered unplanned growth and exceeded infrastructure improvements. The lack of public sewers has caused residents to use onsite wastewater systems in urban as well as rural areas. Wastewater disposal problems have hampered development and have caused unnecessary health hazards. The county comprises a wide variety of topography and soil and site conditions that impact onsite wastewater systems. The belief exists that extending public sewer lines is the only acceptable method of wastewater disposal. This uninformed viewpoint undermines the use of cost-effective and safe onsite wastewater systems. Lack of understanding by the public, elected officials, and the government, as well as legal constraints have impeded the success of these systems. The outcome of this proposal offers an alternative to public sewers through the effective use of onsite wastewater systems and management.


Objective
Provide an extensive education and training program about onsite systems and the necessary information, motivation, and support necessary to establish a management district.


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