Did You

  • The cost of one bottle of water from a vending machine is equivalent to the cost of drinking 8 glasses of tap water every day for a year.
  • A gallon of water weighs 8.34 pounds.
  • The Water Authority maintains almost 1500 miles of drinking water pipes. If you put them end-to-end, they would stretch from Roanoke to Colorado Springs, CO.
  • At one drip per second, a faucet can leak 3,000 gallons of water per year.
  • Water is the only substance naturally found on earth as a solid, liquid and gas.
  • Over 713 gallons of water go into the production of one cotton T-shirt.
  • The Authority’s Water Pollution Control Plant is regarded as one of the best bird-watching areas in the mid-Atlantic region.
  • The Water Authority maintains over 6,000 fire hydrants in our service area. Fire hydrants are connected to the public drinking water distribution lines, so water from a fire hydrant is drinking water.
  • There are over 23,000 manholes in our service area.
  • Carvins Cove Natural Reserve is the second largest municipal park in the United States.
  • The Authority’s Water Pollution Control Plant covers over 100 acres of land.
  • More people in the world have a mobile phone than have a toilet.
  • The Water Authority treats 19-million gallons of drinking water a day although we have the capacity to treat 56-million gallons per day.
  • The Authority’s Water Pollution Control Plant treats almost 37-million gallons of wastewater a day from all across the Roanoke Valley.
  • There are 51 drinking water storage tanks in our service area. They each hold between 500,000 – 2-million gallons of water.
  • Most of the treated drinking water used in a home is for toilet flushing.

water drops



Historic Reservoir Levels

cove drought 2008
flooded cove
2002 Drought at Carvins Cove
cove spring
cove drought 08
Carvins Cove Full Pond 2015
carvins cove drought conditions

Current Carvins Cove Water Level

Lowest Recorded Level (ft.)
Avg. Level (ft.)
Month 1988-1997 1999
(drought year)
(drought year)
January -15.2 -21.2 -20.9 -6.1
February -15.5 -20.5 -23.4 -4.6
March -13.4 -20.9 -24.7 -3.5
April -5.5 -17.4 -24.3 -2.4
May -3.4 -19.0 -23.8 -2.1
June -2.8 -23.0 -27.0 -2.7
July -4.7 -26.0 -29.3 -3.9
August -6.7 -28.7 -31.4 -5.3
September -8.2 -29.2 -33.7 -6.5
October -10.8 -18.2 -34.1* -7.0
November -12.8 -17.9 -31.6 -7.7
December -15.3 -14.0 -22.6 -7.0
-5.0 means 5.0 feet below spillway or the water level in Carvins Cove was 5.0 feet below the reservoir's maximum capacity 

*lowest level ever recorded