Reservoir Volumes and Storage for Drought Monitoring as of December 31, 2021
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Storage in selected Maryland reservoirs for the end of December 2021
| Water System |
Reservoir |
Percent Full* |
Days of Storage** |
City of Frostburg |
Piney |
99%
|
622
|
|
|
|
|
| City of Cumberland |
Lake Gordon |
100%
|
313
|
| Lake Koon |
66%
|
|
|
|
|
100%City of Baltimore
|
Liberty |
98% |
350
|
| Loch Raven |
100% |
| Prettyboy |
100% |
| Total |
99% |
|
|
|
|
WSSC |
Triadelphia Reservoir |
76% |
153
|
| 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.
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