- characteristics of the superficial deposits and soils in the catchment from which the groundwater body receives its recharge, including the thickness, porosity, hydraulic conductivity, and absorptive properties of the deposits and soils,

- hydrogeological characteristics of the groundwater body including hydraulic conductivity, porosity and confinement,

Collect the carbon treated in this way in a 2-litre conical flask, add 1 litre of water, shake and filter using a sintered glass filter of porosity 3.

Collect the precipitate in a sintered glass crucible of porosity No 4, and wash it three times with about 30 ml of distilled water.

Geoscience BC undertook a number of studies of the actual water flow in that Debolt aquifer, the water chemistry, the porosity and permeability in that unit to try and make an assessment of just how much water was there, how large a resource was it, so that was all primarily original research on data provided to us by the companies who were willing to work collaboratively on that question.

"Vitreous china" or "semi-vitreous china" which are ceramic products that have been vitrified to a greater or lesser extent of slightly greyish-white or artificially coloured ceramic material which is smooth to the tongue, shall, as appropriate, be classified under headings or subheadings Nos 69.09 A, 69.11, 69.13 B or 69.14 A of the Common Customs Tariff where, simultaneously, they have the following properties: (a) a degree of porosity (co-efficient of water absorption) not exceeding 3 %, measured according to the method set out in Annex I;