Cooper (Chapman) Lake is 39.9% full as of 2014-04-17

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 2014-04-17 39.9 429.28 -10.72 142,356 103,758 260,332 11,268
Yesterday 2014-04-16 39.8 429.27 -10.73 142,244 103,646 260,332 11,262
2 days ago 2014-04-15 39.6 429.22 -10.78 141,682 103,084 260,332 11,232
1 week ago 2014-04-10 37.4 428.70 -11.30 135,931 97,333 260,332 10,877
1 month ago 2014-03-17 32.1 427.39 -12.61 122,267 83,669 260,332 9,950
3 months ago 2014-01-17 34.1 427.89 -12.11 127,337 88,739 260,332 10,333
6 months ago 2013-10-17 29.8 426.77 -13.23 116,216 77,618 260,332 9,575
1 year ago 2013-04-17 53.3 432.17 -7.83 177,318 138,720 260,332 13,007
*

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