Data is updated every year about October/November time period



Westville Dam, Quinebaug River
Peak Pool Levels
by Water Year
(1962 - Present)
Drainage Area (gross):  99 sq. miles
Drainage Area (net):  32 sq. miles
Normal Pool:  10.5 ft.
Gate Invert Elev.:  515 ft. NGVD
1" Runoff =   1,707 ac-ft
Storage at Spillway Crest:   6.4 in. / 11,100 ac-ft



Date
Annual Peak
Pool Level (ft)
Storage Utilized
Inches Acre-Feet Percent
04 Apr 1962 13.5 0.1 106 1
29 Mar 1963 11.5 0.0 40 0
28 Jan 1964 21.7 0.3 549 5
30 Nov 1964 27.5 0.6 980 9
27 Mar 1966 16.5 0.1 235 2
29 May 1967 34.5 1.0 1,640 15
22 Mar 1968 49.0 3.1 5,240 48
27 Apr 1969 37.5 1.2 1,985 18
     
06 Feb 1970 44.5 2.0 3,395 31
06 Apr 1971 19.9 0.3 429 4
24 Mar 1972 46.0 2.3 3,900 35
05 Feb 1973 40.9 1.5 2,493 23
23 Dec 1973 41.0 1.5 2,510 23
20 Mar 1975 17.2 0.2 271 2
29 Jan 1976 31.1 0.8 1,300 12
15 Mar 1977 33.6 0.9 1,550 14
27 Jan 1978 38.7 1.3 2,148 20
27 Jan 1979 44.8 2.0 3,494 32
     
23 Mar 1980 39.1 1.3 2,205 20
27 Feb 1981 41.3 1.5 2,570 23
07 Jun 1982 47.3 2.6 4,435 40
26 Apr 1983 40.7 1.4 2,459 22
05 Jun 1984 50.5 3.6 6,085 55
29 Sep 1985 19.2 0.2 387 4
17 Mar 1986 38.8 1.3 2,162 20
09 Apr 1987 49.2 3.1 5,350 49
28 Mar 1988 20.1 0.3 442 4
15 Aug 1989 33.8 0.9 1,570 14
     
22 Oct 1989 37.7 1.2 2,011 18
23 Aug 1991 29.7 0.7 1,173 11
25 Nov 1991 19.4 0.2 399 4
02 Apr 1993 43.9 1.9 3,202 29
11 Mar 1994 20.6 0.3 474 4
11 Mar 1995 15.0 0.1 165 2
29 Jan 1996 36.3 1.1 1,836 17
21 Oct 1996 23.4 0.4 666 6
11 Mar 1998 38.5 1.2 2,120 19
25 Jan 1999 19.8 0.2 425 4
     
23 Apr 2000 21.0 0.3 498 5
31 Mar 2001 28.3 0.6 1,047 10
15 May 2002 15.7 0.1 195 2
23 Dec 2002 19.8 0.2 421 4
15 Apr 2004 25.7 0.5 838 8
04 Apr 2005 33.1 0.9 1,490 14
16 Oct 2005 46.5 2.4 4,100 37
17 Apr 2007 42.3 1.6 2,782 25
09 Mar 2008 36.2 1.1 1,824 16
19 Nov 2008 30.5 0.7 1,249 12
     
16 Mar 2010 13.3 0.1 100 1
31 Aug 2011 40.0 1.4 2,345 21
08 Dec 2011 14.2 0.1 131 1
08 Jun 2013 17.5 0.2 287 2
31 Mar 2014 25.7 0.5 834 8
05 Apr 2015 16.8 0.1 248 2
25 Feb 2016 16.8 0.1 248 2
07 Apr 2017 17.3 0.2 274 2
17 Apr 2018 19.6 0.2 410 4
25 Jan 2019 23.1 0.4 647 6
     
15 Dec 2019 15.2 0.1 174 2
03 Sep 2021 37.1 1.1 1,928 18