Reservoir Volumes and Storage for Drought Monitoring as of December 31, 2020

​​Storage in selected Maryland reservoirs for the end of December 2020

 
Water System Reservoir Percent Full* Days of Storage**
City of Frostburg
Piney 99%
622




City of Cumberland Lake Gordon 100%
407
Lake Koon 100%
City of Baltimore
Liberty 100% 341
330Loch Raven 100%
Prettyboy 100%
Total 100%
WSSC
Triadelphia Reservoir 100% 202
Rocky Gorge/Duckett
Seneca Creek Reserve 100% NA
All Potomac River Plants Jennings-Randolph Reserve*** 100% NA
 
​* Percent Full is the ratio of current volume to the maximum usable volume in each reservoir at the end of the month. 

** Days of Storage is the number of days available to meet the system's demand.

*** Percent full for Jennings-Randolph Reservoir is based on the allotted quanity of water in reservoir used to supplement Potomac River flow for drinking water purposes.


 

Related Topics

For More Information
Please contact the Water Supply Program at WATER.SUPPLY@maryland.gov​ or 410-537-3702