Cooper (Chapman) Lake is 32.1% full as of 2014-12-22

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 2014-12-22 32.1 427.37 -12.63 122,069 83,471 260,332 9,936
Yesterday 2014-12-21 32.1 427.38 -12.62 122,168 83,570 260,332 9,943
2 days ago 2014-12-20 32.1 427.39 -12.61 122,267 83,669 260,332 9,950
1 week ago 2014-12-15 32.1 427.37 -12.63 122,069 83,471 260,332 9,936
1 month ago 2014-11-22 32.3 427.43 -12.57 122,666 84,068 260,332 9,978
3 months ago 2014-09-22 39.9 429.28 -10.72 142,356 103,758 260,332 11,268
6 months ago 2014-06-22 55.2 432.55 -7.45 182,304 143,706 260,332 13,244
1 year ago 2013-12-22 32.7 427.53 -12.47 123,668 85,070 260,332 10,053
*

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