Cooper (Chapman) Lake is 46.1% full as of 2014-08-21

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 2014-08-21 46.1 430.69 -9.31 158,740 120,142 260,332 11,978
Yesterday 2014-08-20 46.3 430.72 -9.28 159,100 120,502 260,332 11,997
2 days ago 2014-08-19 46.5 430.77 -9.23 159,701 121,103 260,332 12,028
1 week ago 2014-08-14 47.5 430.98 -9.02 162,250 123,652 260,332 12,288
1 month ago 2014-07-21 51.7 431.85 -8.15 173,186 134,588 260,332 12,819
3 months ago 2014-05-21 57.9 433.07 -6.93 189,296 150,698 260,332 13,640
6 months ago 2014-02-21 31.1 427.12 -12.88 119,604 81,006 260,332 9,784
1 year ago 2013-08-21 38.8 429.03 -10.97 139,559 100,961 260,332 11,108
*

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