Cooper (Chapman) Lake is 43.7% full as of 2015-02-26

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)
Most recent 2015-02-26 43.7 430.16 -9.84 152,470 113,872 260,332 11,697
1 day prior 2015-02-25 42.5 429.88 -10.12 149,212 110,614 260,332 11,571
2 days prior 2015-02-24 41.2 429.58 -10.42 145,762 107,164 260,332 11,430
1 week prior 2015-02-19 38.6 428.99 -11.01 139,115 100,517 260,332 11,080
1 month prior 2015-01-26 39.0 429.08 -10.92 140,115 101,517 260,332 11,143
3 months prior 2014-11-26 32.3 427.42 -12.58 122,566 83,968 260,332 9,971
6 months prior 2014-08-26 44.9 430.42 -9.58 155,527 116,929 260,332 11,825
1 year prior 2014-02-26 31.0 427.10 -12.90 119,408 80,810 260,332 9,773
*

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