Cooper (Chapman) Lake is 35.9% full as of 2014-10-25

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 2014-10-25 35.9 428.35 -11.65 132,166 93,568 260,332 10,647
Yesterday 2014-10-24 36.0 428.37 -11.63 132,379 93,781 260,332 10,659
2 days ago 2014-10-23 36.1 428.40 -11.60 132,698 94,100 260,332 10,678
1 week ago 2014-10-18 36.8 428.57 -11.43 134,523 95,925 260,332 10,789
1 month ago 2014-09-25 39.2 429.12 -10.88 140,562 101,964 260,332 11,169
3 months ago 2014-07-25 51.2 431.75 -8.25 171,907 133,309 260,332 12,762
6 months ago 2014-04-25 40.3 429.38 -10.62 143,486 104,888 260,332 11,326
1 year ago 2013-10-25 28.7 426.46 -13.54 113,278 74,680 260,332 9,378
*

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