Reservoir Volumes and Storage for Drought Monitoring as of April 30, 2021

​​Storage in selected Maryland reservoirs for the end of April 2021

 
Water System Reservoir Percent Full* Days of Storage**
City of Frostburg
Piney 99%
753




City of Cumberland Lake Gordon 100%
403
Lake Koon 100%




100%City of Baltimore
Liberty 100% 336
Loch Raven 100%
Prettyboy 100%
Total 100%
WSSC
Triadelphia Reservoir 98% 182
Rocky Gorge/Duckett
Seneca Creek Reserve 99% 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.

****Data not available as of 2021-May-05

 

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