White Salmon residents are being asked to conserve water.  Municipal public works director Andrew Dirks says the conservation notice comes as the City’s slow sand filter plant is off-line after a scraping of filter bays there.  The plant can’t be put back online until the results of water sample tests are received from the Washington Department of Health.  Dirks says their two water wells are running, but the faster than expected warming of temperatures led to the City’s reservoirs not being as full as normal as the wells try to keep up with demand.  White Salmon residents are being asked to hold back on using water for irrigation and other outdoor uses for the time being.  Dirks says they hope to have the sample test results later today or tomorrow, and will put the sand filter plant back on line when they receive them.