During hot days in the tourist season the water usage can be up to 7500 m3, 20% more than the average usage. (https://www.pwn.nl/overpwn/pers/Paginas/dossiertexel.aspx)
current water use
The average water use on Texel is 125 litre/person/day. Water can be collected inside the groundwater bubble underneath the Hoge Berg on Texel, there is a water basement with a capacity of 6900 m3.