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NOTE: To get off this list, send email to majordomo@aqua.ccwr.ac.za with the body of the message containing the line: unsubscribe sowacs Dear Mr Andrews Your information is correct. It is possible to get a long-term indication of depths of saturation in soils from soil features, namely what are called hydromorphic characteristics. The forest industry in South Africa delineates its stream-side planting boundaries on the basis of hydromorphic characteristics, the intention being to not plant soils that are seasonally saturated to within + m of surface. One of the soil scientists that assist the forestry companies to delineate these so-called "riparian reserves" would readily be able to help you with your problem. I can assist in putting you in touch with one. Regards Dave ******************************************* Dr David F Scott Forest & Catchments Hydrologist CSIR, Division of Water, Environment and Forestry Technology PO Box 320 7599 Stellenbosch, South Africa. tel. +27 21 888 2407 fax. +27 21 888 2684 e-mail: dscott@csir.co.za ******************************************* >>> <owner-sowacs@aqua.ccwr.ac.za> 14-Aug-01 09:33:21 >>> From: Alan Robock <robock@envsci.rutgers.edu> To: Paul.I.Andrews@Fluor.com cc: sowacs@aqua.ccwr.ac.za Subject: Re: Soil moisture content Dear Mr. Andrews, I think this is a very difficult problem, and have no solution for you. I have forwarded your question to the sowacs listserv group and hope someone else can help you. Alan Robock Professor Alan Robock Editor, JGR - Atmospheres Director, Center for Environmental Prediction Department of Environmental Sciences Phone: +1-732-932-9478 Rutgers University Fax: +1-732-932-8644 14 College Farm Road E-mail: robock@envsci.rutgers.edu New Brunswick, NJ 08901-8551 USA http://envsci.rutgers.edu/~robock On Tue, 14 Aug 2001 Paul.I.Andrews@Fluor.com wrote: > Dear Sir > > Facing a dilemma I searched the internet and found your site. Can you help? > > I am looking at a pipeline project in Mozambique where the pipeline is > buried in wet soils to a depth at the bottom of the pipe of 2 meters. The > pipe is of a diameter that would be buoyancy in the soil if it contained > water. On a normal project we obtain data on the water table using piezo > tubes or similar. In this case we cannot gain access to undertake the > design at this time as much of the country is mined form an old time war. > Once we clear the mines placement of the tubes would be possible but the > validity of the data for such a short period would be highly questionable. > The question therefore is to establish if a method of assessing the worst > possible ground water content from visual inspection or testing of the > ground is possible? Even after the level of moisture may have reduced due > to drying. > > i was told that signs of areas where moisture prevails for much of the time > can be seen by looking at the soil profile. > > Could you point me in the correct path to a solution for this problem > > Best Regards > > Paul Andrews > >