Cooper (Chapman) Lake is 32.1% full as of 2014-12-19

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 2014-12-19 32.1 427.38 -12.62 122,168 83,570 260,332 9,943
Yesterday 2014-12-18 32.1 427.37 -12.63 122,069 83,471 260,332 9,936
2 days ago 2014-12-17 31.9 427.33 -12.67 121,672 83,074 260,332 9,910
1 week ago 2014-12-12 31.6 427.25 -12.75 120,881 82,283 260,332 9,861
1 month ago 2014-11-19 32.5 427.48 -12.52 123,166 84,568 260,332 10,014
3 months ago 2014-09-19 40.5 429.42 -10.58 143,940 105,342 260,332 11,348
6 months ago 2014-06-19 55.8 432.66 -7.34 183,765 145,167 260,332 13,319
1 year ago 2013-12-19 31.3 427.18 -12.82 120,192 81,594 260,332 9,819
*

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