Cooper (Chapman) Lake is 45.5% full as of 2015-02-28

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 2015-02-28 45.5 430.54 -9.46 156,951 118,353 260,332 11,891
Yesterday 2015-02-27 45.0 430.43 -9.57 155,646 117,048 260,332 11,830
2 days ago 2015-02-26 43.9 430.19 -9.81 152,821 114,223 260,332 11,711
1 week ago 2015-02-21 38.5 428.96 -11.04 138,783 100,185 260,332 11,059
1 month ago 2015-01-28 39.0 429.09 -10.91 140,227 101,629 260,332 11,149
3 months ago 2014-11-28 32.1 427.38 -12.62 122,168 83,570 260,332 9,943
6 months ago 2014-08-28 44.5 430.32 -9.68 154,347 115,749 260,332 11,773
1 year ago 2014-02-28 30.9 427.07 -12.93 119,116 80,518 260,332 9,755
*

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