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WATER WATCH FOR JULY 29, 2011
 

  1. Portsmouth's reservoirs are at 77% of useful capacity as of this morning.  Lakes Cohoon, Meade, Kilby, and Speights Run levels are 24.2 ( -4.1), 10.5 ( -1.5), 19.1 ( +0.1), and 32.2 ( -0.3) respectively.  This is a 2% change since the last report on July 22, 2011.  The median capacity for the current month is 94%, average capacity is 92%. (Average & Median 1969 - 2010)
  1. Rainfall (as recorded at the Lake Kilby Water Treatment Facility gauge Suffolk, VA) October 1 - September 30 Wateryear in brackets
  1. Current year to date: 20.60 inches [ 27.26]
  2. Monthly total to date: 3.74  29 year July average rainfall: 5.31
  3. Median drought year average through July: 19.97 [ 29.32]
  4. Year to date ( deficit) against the 29 year average: -8.18 [ -12.61] ( July  31)
  1. Emergency Wells:  3.2
  1. Reservoir water transfers: ( Yes)
  1. Beginning on: 6/17/11 (Date)
  2. From: Cohoon to Meade
  3. Notes: L Cohoon top valve adjusted to 100% open 7/22
  4. Estimated days of storage remaining at current pumpage and rainfall: 185 days. (@ raw water pumpage flow 15.573 MGD; Finish flow 18.845 MGD)

Department of Public Utilities
Lake Kilby Treatment Facility • 105 Maury Place • Suffolk VA 23434
Phone (757) 539-2201ext. 222 or Fax (757) 539-7608