	The regionally diversified origin and processing of drinking water – pumped water from Rhine and Ruhr, various groundwater wells, replenishment with infiltrated canal water – guarantees constantly the regional supply with water of highest quality in Ruhr and Münsterland region. Hereby it is also possible in case of calamities (like exceeding threshold values at certain groundwater wells) to substitute the water supply from other sources (like the infiltration of canal water).