res above the highest astronomical tide (//47) leweł Pona, constructed in land less th an I metre above HAT cannot be drain harvested daring high tides, whilst very elevated sites require
"ore energy for pumping and hence impose higher costs."
The properties of soil for pond construction are all important, especially as Pond construction is the largest capital expense of a commercial operation. Good soil can minimize maintenance repair, leakage and related Piping costs. Physical and chemical properties of soil should be assessed. The Guidelines for constructing and maintaining aquaculture containment structure contains comprehensive design, construction and maintenance of operational and wat
advice on storage ponds for aquaculture, including advice on soil testing (Anon, 2007).