Cooper (Chapman) Lake is 51.0% full as of 2013-06-20

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 2013-06-20 51.0 431.71 -8.29 171,396 132,798 260,332 12,739
Yesterday 2013-06-19 51.1 431.73 -8.27 171,652 133,054 260,332 12,750
2 days ago 2013-06-18 51.3 431.76 -8.24 172,034 133,436 260,332 12,768
1 week ago 2013-06-13 51.4 431.78 -8.22 172,289 133,691 260,332 12,779
1 month ago 2013-05-20 50.0 431.51 -8.49 168,860 130,262 260,332 12,625
3 months ago 2013-03-20 54.4 432.39 -7.61 180,193 141,595 260,332 13,137
6 months ago 2012-12-20 57.8 433.06 -6.94 189,160 150,562 260,332 13,634
1 year ago 2012-06-20 91.7 438.75 -1.25 277,341 238,743 260,332 16,826
*

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