Cooper (Chapman) Lake is 35.1% full as of 2014-10-31

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 2014-10-31 35.1 428.15 -11.85 130,049 91,451 260,332 10,519
Yesterday 2014-10-30 35.2 428.17 -11.83 130,259 91,661 260,332 10,533
2 days ago 2014-10-29 35.3 428.20 -11.80 130,575 91,977 260,332 10,553
1 week ago 2014-10-24 36.0 428.37 -11.63 132,379 93,781 260,332 10,659
1 month ago 2014-09-30 38.3 428.91 -11.09 138,231 99,633 260,332 11,024
3 months ago 2014-07-31 50.3 431.56 -8.44 169,492 130,894 260,332 12,653
6 months ago 2014-04-30 39.6 429.23 -10.77 141,794 103,196 260,332 11,238
1 year ago 2013-10-31 29.3 426.62 -13.38 114,787 76,189 260,332 9,484
*

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