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Archive of Wachusett Reservoir Levels
Massachusetts Water Resources Authority

 

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Quabbin Levels Archive
Water System Demand Archive
Precipitation Levels Archive
Monthly Water Supply Status Report

Below is an archive of data for Wachusett Reservoir levels since 2005.

MWRA and the Mass. Department of Conservation and Recreation keep a daily watch on reservoir levels at Quabbin (412 billion gallon capacity) and Wachusett (65 billion gallons).

Wachusett levels are kept relatively fixed while Quabbin levels fluctuate with precipitation and watershed runoff.

WACHUSETT RESERVOIR LEVELS ARCHIVE
Key: ft = feet, mg=million gallons.

2013 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
05/01/13 390.24 59,483 90.5
04/01/13 389.70 58,789 89.5
03/01/13 390.15 59,367 90.4
02/01/13 391.36 60,929 92.7
01/01/13 390.42 59,714 90.9

2012 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/12 390.64 59,998 91.3
11/01/12 390.00 59,174 90.1
10/01/12 390.81 60,217 91.7
09/01/12 390.17 59,393 90.4
08/01/12 390.45 59,753 90.9
07/01/12 390.42 59,714 90.9
06/01/12 390.42 59,714 90.9
05/01/12 390.63 59,985 91.3
04/01/12 390.62 59,972 91.3
03/01/12 390.64 59,998 91.3
02/01/12 390.93 60,372 91.9
01/01/12 390.50 59,817 91.0

2011 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/11 390.50 59,817 91.0
11/01/11 390.50 59,817 91.0
10/01/11 390.51 59,830 91.1
09/01/11 390.04 59,225 90.1
08/01/11 388.24 56,930 86.7
07/01/11 390.03 59,213 90.1
06/01/11 389.84 58,969 89.8
05/01/11 390.70 60,075 91.4
04/01/11 390.52 59,843 91.1
03/01/11 387.37 55,837 85.0
02/01/11 389.06 57,971 88.2
01/01/11 390.74 60,127 91.5
2011 AVERAGE 389.83 ft 58,971mg 89.75%

2010 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/10 390.48 59,792 91.0%
11/01/10 390.50 59,817 91.0%
10/01/10 390.12 59,328 90.3%
09/01/10 390.21 59,444 90.5%
08/01/10 390.23 59,470 90.5%
07/01/10 390.03 59,213 90.1%
06/01/10 390.02 59,200 90.1%
05/01/10 390.30 59,560 90.7%
04/01/10 396.05 67,099 102.1%
03/01/10 392.95 63,000 95.9%
02/01/10 391.26 60,799 92.5%
01/01/10 390.96 59,611 91.8%
2010 AVERAGE 391.09 ft 60,528 mg 92.21%

2009 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/09 389.92 58,261 89.7
11/01/09 390.55 59,077 90.9
10/01/09 390.50 59,012 90.8
09/01/09 390.78 59,376 91.4
08/01/09 392.57 61,726 95.0
07/01/09 390.35 58,818 90.5
06/01/09 390.07 58,455 90.0
05/01/09 390.79 59,389 91.4
04/01/09 390.01 58,378 89.9
03/01/09 388.67 56,659 87.2
02/01/09 391.29 60,042 92.4
01/01/09 393.89 63,479 97.7
2009 AVERAGE
390.78 ft
59,389 mg
91.4%

2008 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/08 390.99 59,650 91.8
11/01/08 390.41 58,895

90.7
10/01/08 389.69 57,965

89.2
09/01/08 390.84 59,455 91.5
08/01/08 391.15 59,859 92.1
07/01/08 391.81 60,724 93.5
06/01/08 389.38 57,567 88.6
05/01/08 390.15 58,559 90.1
04/01/08 393.73 63,265 97.6
03/01/08 392.41 61,514 94.7
02/01/08 389.36 57,541 88.6
01/01/08 388.89 56,939 87.6

2008 AVERAGE

 390.73 feet 59,328 mg 91.3%

2007 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/07

388.37

 56,276 86.6
11/01/07

388.98

 57,054 87.8
10/01/07

388.33

 56,225 86.5
09/01/07

387.85

 55,615 85.6
08/01/07

388.02

 55,831 85.9
07/01/07 388.11 55,946 86.1
06/01/07 388.21 56,073 86.3
05/01/07 392.22
 61,264 94.3
04/01/07 391.97 60,935 93.8
03/01/07 390.25
 58,688 90.3
02/01/07 391.15 59,859 92.1
01/01/07 391.20 59,925 92.2
2007 AVERAGE 389.55 feet 57,808 mg 88.95%

2006 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/06 392.12 61,132 94.1
11/01/06 391.49 60,304 92.8
10/01/06 390.10 58,494 90.0
09/01/06 390.87 59,494 91.6
08/01/06 390.29 58,740 90.4
07/01/06 391.26 60,003 92.4
06/01/06 391.37 60,147 92.6
05/01/06 388.39 56,302 86.7
04/01/06 390.55 59,077 90.9
03/01/06 392.79 62,017 95.5
02/01/06 394.43 64,201 98.8
01/01/06 394.50 64,295 99.0
2006 AVERAGE 391.51 feet 60,651 mg 92.9%

2005 WACHUSETT RESERVOIR LEVELS

Date Elevation (ft) Volume (mg) Capacity (%)
12/01/05 394.32
 64,054 98.6
11/01/05 393.55 63,026 97.0
10/01/05 390.50 59,012 90.8
09/01/05 391.32 60,082 92.5
08/01/05 391.89 59,912 92.2
07/01/05 390.13 58,533 90.1
06/01/05 391.89 60,829 93.6
05/01/05 394.36 64,108 98.7
04/01/05 391.34 59,038 92.5
03/01/05 390.52 59,038 90.9
02/01/05 391.39
 60,173 92.6
01/01/05 391.05
 59,729 91.9
2005 AVERAGE 391.855 feet 60,627 mg 93.45%

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Updated May 1, 2013

Historic Withdrawls Reservoir Levels Watershed Yield Data