Northern Wasco PUD board members formally received a staff recommendation for rate increases during a special meeting Monday, calling for a 9.13% increase in residential rates.  That includes a $5 increase in the flat fee and a 4% increase in the per kilowatt hour price, which means the typical customer would see their power bill go up by $7 per month.  PUD General Manager Roger Kline says the last rate adjustment came in 2013 after a cost of service analysis, and that was the first to take place in thirteen years.  He adds there are multiple reasons for the need to increase rates, including dealing with infrastructure needs and offsetting Bonneville Power Administration cost increases.  The PUD board will vote on the increase at their meeting next Tuesday at 6 p.m. in the PUD board room on 2345 River Road in The Dalles.  If approved, the rate increase would go into effect in May.