Water & waste water

Ground water and surface water

You can fill in groundwater and surface water for the purpose of the number of water use. The completed data does not affect the calculated environmental impact.

Waste water

The amount of waste water pollution is calculated in pollution units (PU’s), you can find this on the bill.

In case the PU is not know: enter in the waste water box the same number (in m3) as drinking water, and change the unit to ‘m³ domestic’ instead of ‘PU’.

At swimming pools

The waste water of swimming pools is less dirty than domestic waste water. Use the following formula:

waste water in PU = pollution units = (drinking water in m³ – suppletion water in m³) x 0,0039 + suppletion water in m³ x 0,001