White Salmon will shut down its water system Thursday at 9 a.m. to allow for system repairs.  City Administrator Patrick Munyan says the work will take place on Arnett Road, which is the highest pressure point in the system.  The City is asking residents that if they continue to have water throughout the day, use if for only essential services such as drinking or cooking and flushing the toilet.  Refrain from washing clothes, washing cars, and any kind of irrigation.  The water outage will affect all customers including those located in Bingen that are directly on the White Salmon water system.