OWASA - Water Watch
Water
Watch
Thursday, September 02, 2010
Weekday update of OWASA water supply and demand information
(OWASA serves the Carrboro-Chapel Hill community)
|
University Lake, the Cane Creek Reservoir, and the Quarry Reservoir currently contain:
|
2.781 billion gallons of water, which is
78% of their capacity
|
Estimated Days of Water Supply remaining:
|
322 days (about
10 months), based on average demand in the last 30 days, and assuming no further rainfall
|
Cane Creek Reservoir Water Level:
|
4 feet,
8.5 inches below full as of this morning, which is
down 1 inches from yesterday
|
University Lake Water Level:
|
1 feet,
9 inches below full as of this morning, which is
down 0.25 inches from yesterday
|
| The Quarry Reservoir Level: |
0 feet,
0 inches below full as of this morning, which is
no change from yesterday
|
Customer Demand:
|
|
Yesterday (September 01, 2010):
|
10.388 million gallons
|
|
Past 7 days (average):
|
9.458 million gallons
|
|
Past 30 days (average):
|
8.626 million gallons
|
| |
|
Rainfall in the 24 hours ending this morning at about 7 am was:
|
0 inches at the Jones Ferry Road Water Treatment Plant, which is about 1.5 miles from University Lake.
0 inches at the Cane Creek Reservoir Dam.
|
Rainfall to date during
September:
|
0.00 inches at the Jones Ferry Road Water Treatment Plant
0.00 inches at the Cane Creek Reservoir dam
|
|
Normal rainfall for
September:
(30 year average)
|
4.21 inches at our Jones Ferry Road Water Treatment Plant
|
Graphs of this and related water supply and demand information can be viewed at http://www.owasa.org/right/SupplyDemandGraph.aspx. Average and actual rainfall by month and year
For data on average and annual rainfall by year since 2000 and by month in the last year as measured at our Jones Ferry Road Water treatment plant in Carrboro, please use the following link: Rainfall data from OWASA's gauge in Carrboro. Volume of water in two of the major streams that flow into our reservoirs Detailed information about the volume of water in two of the major streams that flow into our reservoirs is available at the US Geological Survey web pages noted below. (Please click on either of the Website links underlined below in light blue to go either Website.) Please note that the streamflow data is presented in cubic feet per second, and that these gauges represent only a portion of all the water flowing into the reservoirs. You can make the following conversions to change cubic feet per second (cfs) to million gallons per day (mgd) and to estimate total streamflow entering the reservoirs from all sources at any given time: For University Lake – Multiply the flow (in cfs) reported for Morgan Creek at NC 54 as shown on http://waterdata.usgs.gov/nc/nwis/uv/?&site_no=02097464 by 2.34 to estimate (in mgd) the total inflow to University Lake. For the Cane Creek Reservoir – Multiply the flow (in cfs) reported for Cane Creek at Buckhorn Road as shown on http://waterdata.usgs.gov/nc/nwis/uv/?&site_no=02096846 by 2.71 to estimate (in mgd) the total inflow to the Cane Creek Reservoir. |
|
|