Cooper (Chapman) Lake is 38.9% full as of 2015-01-31

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 2015-01-31 38.9 429.06 -10.94 139,893 101,295 260,332 11,129
Yesterday 2015-01-30 39.0 429.07 -10.93 140,004 101,406 260,332 11,136
2 days ago 2015-01-29 39.0 429.09 -10.91 140,227 101,629 260,332 11,149
1 week ago 2015-01-24 38.6 428.98 -11.02 139,004 100,406 260,332 11,073
1 month ago 2014-12-31 32.2 427.40 -12.60 122,366 83,768 260,332 9,956
3 months ago 2014-10-31 35.0 428.13 -11.87 129,839 91,241 260,332 10,506
6 months ago 2014-07-31 50.3 431.56 -8.44 169,492 130,894 260,332 12,653
1 year ago 2014-01-31 32.3 427.44 -12.56 122,766 84,168 260,332 9,985
*

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