Local authorities in a west German town that is home to a German Armed Forces site partially lifted a drinking water warning on Friday a day after it was issued following the discovery of a cut fence at a drinking water reservoir. Investigations by a special fire brigade unit had shown that the water was not biologically or chemically contaminated, a spokesman for the town of Mechernich said. Citizens are allowed to use water again for showering and washing, but should still boil water before drinking it as a precaution, he said. Bacterial contamination would be investigated further, the spoke…