Reservoir Volumes and Storage for Drought Monitoring as of June 30, 2016

Storage in selected Maryland reservoirs for the end of Jun, 2016

Water System Reservoir Percent Full* Days of Storage**

City of Frostburg

Piney **** ****
City of Cumberland Lake Gordon 100% 402
Lake Koon 100%

City of Baltimore

Liberty 100% 321
Loch Raven 100%
Prettyboy 98%
Total 100%


Triadelphia Reservoir 97% 173
Rocky Gorge/Duckett
Seneca Creek Reserve 98% 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 amount of days it would take to use current volume of reservoir (w/o recharge) based on average raw water withdrawals from similar time frame from previous two years.

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

**** Not available as of 2016-07-12 at 10:00 AM

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For More Information

Please contact the Water Supply Program at or 410-537-3702

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