Cooper (Chapman) Lake is 36.5% full as of 2014-10-21

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 2014-10-21 36.5 428.48 -11.52 133,555 94,957 260,332 10,729
Yesterday 2014-10-20 36.6 428.50 -11.50 133,769 95,171 260,332 10,742
2 days ago 2014-10-19 36.7 428.53 -11.47 134,092 95,494 260,332 10,762
1 week ago 2014-10-14 37.4 428.71 -11.29 136,040 97,442 260,332 10,884
1 month ago 2014-09-21 40.1 429.34 -10.66 143,034 104,436 260,332 11,303
3 months ago 2014-07-21 51.7 431.85 -8.15 173,186 134,588 260,332 12,819
6 months ago 2014-04-21 39.7 429.25 -10.75 142,019 103,421 260,332 11,250
1 year ago 2013-10-21 29.2 426.60 -13.40 114,596 75,998 260,332 9,472
*

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