. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. "The Back Page" is an update on Sea Grant activities — on research, marine education and advisory services. It's also a good place to find out about meetings, workshops and new publi- cations. For more information on any of the projects described, contact the Sea Grant offices in Raleigh (919/737- 2454). For copies of publications, write UNC Sea Grant, NCSU, Box 8605, Raleigh, 27695-8605. When it comes to fil- tering sewage, some soils just can't get the job done. The sandy soils of the coas
. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. "The Back Page" is an update on Sea Grant activities — on research, marine education and advisory services. It's also a good place to find out about meetings, workshops and new publi- cations. For more information on any of the projects described, contact the Sea Grant offices in Raleigh (919/737- 2454). For copies of publications, write UNC Sea Grant, NCSU, Box 8605, Raleigh, 27695-8605. When it comes to fil- tering sewage, some soils just can't get the job done. The sandy soils of the coastal plain and the clay soils of the Pied- mont and mountains pose problems for conventional waste treatment systems. Along the coast, loose, shallow soils frequently don't purify wastewater before it reaches the water table. And dense clay soils don't always allow the effluent to be absorbed. Instead, it rises to the surface. To reduce the problems — polluted groundwater and restrictions on de- velopment — caused by the poor soils, a team of Sea Grant researchers devel- oped some alternatives, the low-pres- sure pipe and mound systems. These systems pump doses of wastewater under pressure into shallow, narrow trenches. Several years ago. Sea Grant pub- lished two manuals. Design and Instal- lation of Low-Pressure Pipe Waste Treatment Systems and Design and Installation of Mound Systems for Waste Treatment, to familiarize engi- neers, sanitarians, contractors and architects with the construction of these alternative systems. Now, Sea Grant is offering a third manual in the series, Pressure-Dosed Septic Systems: Electrical Compo- nents and Maintenance, written by Claude H. House and Craig G. Cogger of the NCSU Soil Science Depart- ment. This manual describes, in detail, the dosing controls and accessories needed for pressure-dosed septic sys- tems and discusses how to select, use and maintain them. For a copy of this publication, write Sea Grant. Ask for UNC-SG-85-06. The c
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Keywords: ., bookcentury1900, bookcollectionunclibra, booksubjectoceanography
