Cooper (Chapman) Lake is 38.3% full as of 2014-09-30

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 2014-09-30 38.3 428.92 -11.08 138,341 99,743 260,332 11,031
Yesterday 2014-09-29 38.4 428.95 -11.05 138,673 100,075 260,332 11,052
2 days ago 2014-09-28 38.6 428.99 -11.01 139,115 100,517 260,332 11,080
1 week ago 2014-09-23 39.6 429.22 -10.78 141,682 103,084 260,332 11,232
1 month ago 2014-08-30 44.1 430.25 -9.75 153,525 114,927 260,332 11,739
3 months ago 2014-06-30 53.4 432.19 -7.81 177,578 138,980 260,332 13,019
6 months ago 2014-03-30 32.3 427.44 -12.56 122,766 84,168 260,332 9,985
1 year ago 2013-09-30 32.0 427.36 -12.64 121,969 83,371 260,332 9,930
*

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