West Thompson Dam, Quinebaug River
Peak Pool Levels
by Water Year
(1967 - Present)
Drainage Area (gross):  172 sq. miles
Drainage Area (net):  74 sq. miles
Normal Pool:  15 ft.
Gate Invert Elev.:  292 ft. NGVD
1" Runoff =   3,947 ac-ft
Storage at Spillway Crest:   6.5 in. / 25,600 ac-ft

Date	Annual Peak Pool Level (ft)	Storage Utilized
		Inches	Acre-Feet	Percent
28 May 1967	22.7	0.7	2,921	11
21 Mar 1968	37.5	3.1	12,250	48
27 Mar 1969	23.0	0.8	3,030	12
12 Feb 1970	35.0	2.6	10,200	40
17 Mar 1971	17.0	0.2	960	4
20 Mar 1972	31.0	1.9	7,500	29
04 Feb 1973	27.1	1.3	5,056	20
22 Dec 1973	23.3	0.8	3,171	12
20 Mar 1975	18.9	0.4	1,564	6
29 Jan 1976	32.7	2.2	8,605	34
15 Mar 1977	27.8	1.4	5,448	21
28 Jan 1978	31.5	2.0	7,825	31
27 Jan 1979	35.9	2.8	10,920	43
24 Mar 1980	29.3	1.6	6,395	25
26 Feb 1981	30.0	1.7	6,850	27
08 Jun 1982	36.0	2.8	11,000	43
22 Apr 1983	29.1	1.6	6,265	24
04 Jun 1984	38.9	3.4	13,510	53
14 Mar 1985	16.3	0.2	792	3
16 Mar 1986	24.0	0.9	3,500	14
08 Apr 1987	40.9	3.9	15,255	60
25 Jul 1988	18.7	0.4	1,492	6
14 Aug 1989	25.4	1.1	4,200	16
23 Oct 1989	26.5	1.2	4,750	19
21 Aug 1991	19.8	0.5	1,880	7
25 Nov 1991	20.9	0.6	2,265	9
02 Apr 1993	26.8	1.2	4,900	19
12 Mar 1994	20.0	0.5	1,950	8
10 Mar 1995	17.1	0.3	988	4
19 Apr 1996	32.3	2.1	8,319	32
22 Oct 1996	21.3	0.6	2,402	9
11 Mar 1998	28.7	1.5	6,002	23
25 Jan 1999	20.6	0.5	2,164	8
23 Apr 2000	22.4	0.7	2,800	11
31 Mar 2001	22.8	0.8	2,972	12
08 Jun 2002	19.0	0.4	1,564	6
23 Mar 2003	20.5	0.5	2,118	8
16 Apr 2004	26.0	1.2	4,700	18
04 Apr 2005	26.1	1.2	4,700	18
17 Oct 2005	41.3	3.9	15,400	60
18 Apr 2007	30.1	1.8	6,915	27
10 Mar 2008	28.2	1.4	5,688	22
14 Dec 2008	32.1	2.1	8,241	32
01 Apr 2010	37.1	3.0	11,890	46
09 Mar 2011	34.7	2.5	9,990	39
09 Dec 2011	19.2	0.4	1,653	6
09 Jun 2013	22.6	0.7	2,869	11
01 Apr 2014	27.8	1.4	5,465	22
06 Apr 2015	18.7	0.4	1,492	6
26 Feb 2016	19.9	0.5	1,929	8
08 Apr 2017	18.7	0.4	1,474	6
15 Jan 2018	21.3	0.6	2,401	9
26 Jan 2019	23.7	0.9	3,359	13
16 Dec 2019	19.9	0.5	1,904	7
03 Sep 2021	28.6	1.5	5,944	23