[permaculture] suitablility of clay for building ponds

Rain Tenaqiya raincascadia at yahoo.com
Sat May 2 15:47:26 EDT 2009


I'm building a two acre foot pond to irrigate our permaculture demonstration site and I'm having difficulty identifying appropriate soil for building the dam and lining the pond.  We have quite a mix of soils varying from sandstone-derived loam to serpentine-derived clay.  Is the clay content the most important variable?  We have some very high clay content soil that has a crystal like structure when exposed.  It is very expansive, and when dry, it gets blocky and is easily broken up.  I think it would be fine where it will be under other layers or always wet.  Does anyone have any answers or comments on this?
 
Thanks,
 
Rain


      


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