Cooper (Chapman) Lake is 36.1% full as of 2014-10-24

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 2014-10-24 36.1 428.38 -11.62 132,485 93,887 260,332 10,666
Yesterday 2014-10-23 36.1 428.40 -11.60 132,698 94,100 260,332 10,678
2 days ago 2014-10-22 36.3 428.44 -11.56 133,126 94,528 260,332 10,704
1 week ago 2014-10-17 37.0 428.60 -11.40 134,847 96,249 260,332 10,809
1 month ago 2014-09-24 39.4 429.17 -10.83 141,121 102,523 260,332 11,201
3 months ago 2014-07-24 51.4 431.79 -8.21 172,417 133,819 260,332 12,785
6 months ago 2014-04-24 40.6 429.44 -10.56 144,167 105,569 260,332 11,358
1 year ago 2013-10-24 28.9 426.51 -13.49 113,747 75,149 260,332 9,411
*

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