Cooper (Chapman) Lake is 50.8% full as of 2014-07-28

Date Percent Full Water Level
(ft)
Height Above Conservation Pool
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2014-07-28 50.8 431.66 -8.34 170,761 132,163 260,332 12,710
Yesterday 2014-07-27 50.8 431.67 -8.33 170,888 132,290 260,332 12,716
2 days ago 2014-07-26 51.1 431.72 -8.28 171,524 132,926 260,332 12,744
1 week ago 2014-07-21 51.7 431.85 -8.15 173,186 134,588 260,332 12,819
1 month ago 2014-06-28 53.8 432.27 -7.73 178,621 140,023 260,332 13,066
3 months ago 2014-04-28 40.0 429.32 -10.68 142,808 104,210 260,332 11,291
6 months ago 2014-01-28 32.7 427.54 -12.46 123,768 85,170 260,332 10,061
1 year ago 2013-07-28 44.1 430.23 -9.77 153,290 114,692 260,332 11,729
*

Percent Full is based on Conservation Storage and Conservation Capacity.

Additional Information

Impoundment date 1991-01-01
Vertical datum NGVD29
Gauge USGS:07342495
Conservation pool elevation 440.0 ft above NGVD29
Dead pool elevation 415.5 ft above NGVD29

Elevation-Area-Capacity Curves

1991-01-01 (source: usgs)
2007-07-01 (source: twdb) : GIS Data