Cooper (Chapman) Lake is 88.5% full as of 2015-04-21

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 2015-04-21 88.5 438.25 -1.75 268,994 230,396 260,332 16,569
Yesterday 2015-04-20 88.4 438.23 -1.77 268,663 230,065 260,332 16,559
2 days ago 2015-04-19 87.9 438.16 -1.84 267,505 228,907 260,332 16,527
1 week ago 2015-04-14 85.3 437.75 -2.25 260,765 222,167 260,332 16,351
1 month ago 2015-03-21 79.8 436.85 -3.15 246,213 207,615 260,332 15,995
3 months ago 2015-01-21 37.0 428.61 -11.39 134,955 96,357 260,332 10,816
6 months ago 2014-10-21 36.4 428.47 -11.53 133,448 94,850 260,332 10,723
1 year ago 2014-04-21 39.6 429.21 -10.79 141,569 102,971 260,332 11,226
*

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