Data period: through 2018
Town | County | Delorme Map # | True Basin | Flushing Rate | Elevation |
---|---|---|---|---|---|
WINTHROP | KENNEBEC | 12 | 1 | 1.07 flushes/yr | 165 ft |
Maximum Depth | Average Depth | Surface Area | Lake Volume | Drainage Area |
---|---|---|---|---|
30 m (100 ft) |
7 m (24 ft) |
2,119 ha (5,236 ac) |
157,109,008 m3 (127,370 ac-ft) |
84 km2 (32 mi2) |
Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.
Year | Color | Alk | SpCon | pH | TP-EC | TP-SG | TP-BG | TP-PG | SDT-Min | SDT-Avg | SDT-Max | SDT-n | SDT-b | Chl-Min | Chl-Avg | Chl-Max |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1975 | 4.0 | 4.0 | 4.0 | 1 | ||||||||||||
1976 | 16 | 1.8 | 3.5 | 6.5 | 6 | 2.7 | 7.5 | 18.8 | ||||||||
1977 | 21 | 48 | 17 | 21 | 20 | 0.5 | 3.5 | 7.2 | 9 | 1.5 | 11.0 | 18.9 | ||||
1978 | 2.0 | 3.9 | 5.0 | 7 | 1.5 | 7.3 | 14.6 | |||||||||
1979 | 21 | 2.1 | 4.0 | 6.2 | 9 | 1.8 | 8.9 | 18.8 | ||||||||
1980 | 17 | 22 | 1.6 | 4.4 | 6.8 | 9 | 3.7 | 9.0 | 21.4 | |||||||
1981 | 20 | 1.5 | 3.8 | 6.3 | 10 | 2.2 | 8.1 | 22.6 | ||||||||
1982 | 16 | 16 | 3.6 | 4.6 | 5.9 | 7 | 2.9 | 5.6 | 10.1 | |||||||
1983 | 18 | 70 | 22 | 1.6 | 3.6 | 4.8 | 8 | 3.8 | 8.2 | 19.7 | ||||||
1984 | 50 | 22 | 1.9 | 3.5 | 5.5 | 6 | 4.7 | 9.9 | 16.7 | |||||||
1985 | 47 | 17 | 2.0 | 4.2 | 7.0 | 7 | 3.4 | 10.2 | 20.3 | |||||||
1986 | 17 | 2.6 | 4.3 | 5.1 | 7 | 3.9 | 6.6 | 8.6 | ||||||||
1987 | 15 | 17 | 2.2 | 3.5 | 4.5 | 6 | 4.5 | 5.8 | 7.6 | |||||||
1988 | 18 | 15 | 1.7 | 4.0 | 5.9 | 6 | 3.6 | 7.8 | 13.0 | |||||||
1989 | 2.3 | 4.0 | 5.5 | 6 | 4.6 | 5.3 | 6.7 | |||||||||
1990 | 19 | 54 | 7.1 | 18 | 25 | 1.7 | 3.6 | 6.0 | 6 | |||||||
1991 | 17 | 7.0 | 20 | 28 | 20 | 1.9 | 3.7 | 6.0 | 5 | 4.4 | 12.9 | 19.6 | ||||
1992 | 17 | 7.1 | 1.4 | 2.4 | 3.2 | 6 | 9.5 | 19.4 | 34.4 | |||||||
1993 | 18 | 7.0 | 32 | 1.8 | 2.6 | 4.4 | 6 | 6.5 | 14.8 | 22.3 | ||||||
1994 | 17 | 7.0 | 29 | 1.9 | 3.4 | 6.0 | 7 | 6.9 | 14.1 | 22.5 | ||||||
1995 | 16 | 6.9 | 26 | 2.3 | 4.2 | 6.5 | 6 | |||||||||
1996 | 22 | 1.9 | 3.5 | 5.1 | 6 | 4.4 | 8.1 | 12.6 | ||||||||
1997 | 19 | 6.9 | 19 | 16 | 2.5 | 3.8 | 5.9 | 10 | 6.9 | 10.3 | 16.0 | |||||
1998 | 17 | 2.4 | 3.9 | 5.8 | 9 | 4.8 | 9.4 | 14.5 | ||||||||
1999 | 10 | 12 | 17 | 2.5 | 3.8 | 6.2 | 11 | 5.8 | 11.3 | 13.7 | ||||||
2000 | 16 | 6.9 | 16 | 2.6 | 4.3 | 5.7 | 7 | 3.9 | 8.2 | 12.7 | ||||||
2001 | 16 | 7.0 | 18 | 15 | 2.6 | 4.3 | 7.0 | 6 | 6.8 | 12.3 | 15.2 | |||||
2002 | 15 | 6.9 | 16 | 2.7 | 4.6 | 7.4 | 6 | 3.6 | 9.1 | 17.2 | ||||||
2003 | 8 | 18 | 7.1 | 22 | 2.8 | 4.4 | 5.5 | 10 | 4.7 | 7.9 | 10.8 | |||||
2004 | 15 | 7.0 | 30 | 2.8 | 4.7 | 6.6 | 6 | 3.7 | 7.7 | 13.3 | ||||||
2005 | 13 | 6.9 | 19 | 2.4 | 3.5 | 5.4 | 6 | 6.5 | 9.5 | 13.7 | ||||||
2006 | 10 | 20 | 81 | 7.0 | 19 | 2.5 | 4.3 | 6.1 | 7 | 4.7 | 7.7 | 14.0 | ||||
2007 | 19 | 7.1 | 18 | 19 | 2.4 | 4.0 | 5.5 | 6 | 4.8 | 6.7 | 14.0 | |||||
2008 | 8 | 20 | 81 | 7.0 | 12 | 18 | 16 | 2.4 | 3.6 | 5.9 | 7 | 5.2 | 9.8 | 15.0 | ||
2009 | 21 | 27 | 17 | 1.7 | 3.6 | 5.0 | 8 | 6.8 | 10.3 | 18.0 | ||||||
2010 | 20 | 18 | 24 | 20 | 2.2 | 4.7 | 6.7 | 8 | 3.4 | 8.8 | 16.0 | |||||
2011 | 20 | 13 | 17 | 2.5 | 4.2 | 6.3 | 6 | 3.8 | 7.0 | 11.0 | ||||||
2012 | 22 | 17 | 3.3 | 5.2 | 6.5 | 9 | 3.4 | 7.1 | 12.0 | |||||||
2013 | 22 | 13 | 29 | 22 | 2.0 | 3.8 | 7.2 | 9 | 1.9 | 8.7 | 16.0 | |||||
2014 | 13 | 21 | 77 | 7.4 | 17 | 17 | 18 | 2.9 | 5.0 | 6.8 | 9 | 3.8 | 10.9 | 25.0 | ||
2015 | 21 | 16 | 27 | 19 | 3.7 | 5.2 | 6.3 | 9 | 7.0 | 8.2 | 12.0 | |||||
2016 | 21 | 12 | 40 | 18 | 4.7 | 6.5 | 8.4 | 10 | 2.1 | 3.6 | 6.5 | |||||
2017 | 21 | 18 | 41 | 22 | 2.2 | 5.2 | 7.5 | 9 | 3.8 | 9.0 | 14.0 | |||||
2018 | 7 | 21 | 98 | 7.9 | 14 | 41 | 21 | 3.1 | 5.3 | 7.6 | 11 | 4.0 | 7.0 | 10.0 |
Avg Color | Avg Alk | Avg SpCon | pH | Avg TP-EC | Avg TP-SG | Avg TP-BG | Avg TP-PG | SDT-Min | SDT-Avg | SDT-Max | SDT-n | Chl-Min | Chl-Avg | Chl-Max |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
9.2 | 19 | 67 | 7 | 16 | 27 | 20 | 0.5 | 4.1 | 8.4 | 7.4 | 1.5 | 9.1 | 34 |
Depth (m) | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 24.1 | 8.0 | 23.8 | 8.2 | 23.7 | 8.2 | 19.8 | 9.9 | 28.0 | 9.2 | 25.6 | 9.1 | 24.2 | 8.7 | 25.4 | 8.6 |
1 | 23.9 | 7.9 | 23.8 | 8.1 | 23.7 | 8.2 | 19.8 | 9.9 | 27.6 | 9.1 | 25.7 | 9.1 | 24.2 | 8.8 | 25.3 | 8.7 |
2 | 23.9 | 7.9 | 23.2 | 8.1 | 23.6 | 8.2 | 19.7 | 9.9 | 27.0 | 9.6 | 25.7 | 9.0 | 24.2 | 8.7 | 25.0 | 8.7 |
3 | 23.8 | 7.9 | 23.1 | 8.1 | 23.6 | 8.2 | 19.7 | 9.8 | 26.8 | 9.8 | 25.7 | 9.0 | 24.1 | 8.8 | 24.5 | 8.8 |
4 | 23.6 | 7.9 | 23.1 | 8.0 | 23.5 | 8.2 | 19.7 | 9.8 | 26.3 | 9.7 | 25.6 | 8.9 | 24.0 | 8.7 | 24.3 | 8.5 |
5 | 23.5 | 7.9 | 22.9 | 8.0 | 23.1 | 8.1 | 19.6 | 9.8 | 25.3 | 9.1 | 25.6 | 8.8 | 24.0 | 8.7 | 24.0 | 8.1 |
6 | 23.5 | 7.8 | 22.9 | 7.9 | 23.0 | 8.0 | 19.6 | 9.7 | 24.7 | 8.0 | 25.6 | 8.8 | 23.9 | 8.7 | 23.6 | 7.3 |
7 | 22.6 | 5.7 | 22.7 | 7.5 | 18.9 | 3.6 | 19.6 | 9.7 | 23.4 | 6.4 | 22.0 | 3.0 | 20.9 | 2.4 | 22.8 | 5.6 |
8 | 19.0 | 1.6 | 20.9 | 3.4 | 16.7 | 2.2 | 19.6 | 9.5 | 18.6 | 0.7 | 18.5 | 0.6 | 18.4 | 0.2 | 20.4 | 2.4 |
9 | 16.2 | 0.5 | 17.8 | 0.4 | 14.0 | 1.1 | 18.8 | 7.3 | 14.8 | 0.2 | 15.2 | 0.5 | 15.2 | 0.2 | 15.8 | 0.3 |
10 | 14.9 | 0.5 | 15.1 | 0.4 | 13.4 | 1.0 | 14.5 | 0.2 | 12.8 | 0.2 | 13.6 | 0.5 | 13.3 | 0.2 | 13.9 | 0.3 |
11 | 13.9 | 0.4 | 14.1 | 0.4 | 12.9 | 1.1 | 13.7 | 0.2 | 12.2 | 0.3 | 12.7 | 0.5 | 12.5 | 0.2 | 12.6 | 0.3 |
12 | 13.4 | 0.4 | 13.7 | 0.4 | 12.5 | 1.3 | 13.0 | 0.2 | 11.7 | 0.8 | 12.2 | 0.5 | 12.0 | 0.2 | 12.1 | 0.3 |
13 | 13.1 | 0.4 | 13.4 | 0.4 | 12.0 | 1.6 | 12.5 | 0.2 | 11.4 | 1.0 | 11.7 | 0.7 | 11.5 | 0.3 | 11.6 | 0.3 |
14 | 12.4 | 0.4 | 12.6 | 0.4 | 11.6 | 1.6 | 11.9 | 0.2 | 10.8 | 1.2 | 11.2 | 0.8 | 10.9 | 0.4 | 11.1 | 0.3 |
15 | 11.7 | 0.5 | 12.0 | 0.4 | 11.1 | 1.6 | 11.2 | 0.2 | 10.1 | 1.2 | 10.5 | 0.8 | 10.2 | 0.4 | 10.3 | 0.4 |
16 | 11.3 | 0.6 | 11.3 | 0.4 | 10.6 | 1.3 | 10.7 | 0.1 | 9.5 | 1.1 | 9.5 | 0.4 | 9.8 | 0.4 | ||
17 | 10.9 | 0.6 | 10.9 | 0.4 | 10.1 | 1.2 | 10.3 | 0.1 | 9.1 | 1.6 | 9.8 | 0.8 | 9.3 | 0.4 | 9.5 | 0.4 |
18 | 10.7 | 0.6 | 10.7 | 0.4 | 9.9 | 1.0 | 10.0 | 0.1 | 8.9 | 1.3 | 9.1 | 0.4 | 9.2 | 0.4 | ||
19 | 10.6 | 0.6 | 10.5 | 0.4 | 9.7 | 1.0 | 9.9 | 0.1 | 8.8 | 1.2 | 9.1 | 0.8 | 8.9 | 0.4 | 9.0 | 0.4 |
20 | 10.5 | 0.6 | 10.4 | 0.4 | 9.6 | 0.9 | 9.6 | 0.1 | 8.6 | 1.0 | 8.8 | 0.4 | 8.7 | 0.4 | ||
21 | 10.3 | 0.6 | 10.3 | 0.4 | 9.5 | 0.6 | 9.5 | 0.1 | 8.5 | 0.9 | 8.9 | 0.7 | 8.6 | 0.4 | 8.6 | 0.4 |
22 | 10.2 | 0.6 | 10.2 | 0.4 | 9.4 | 0.5 | 9.3 | 0.1 | 8.4 | 0.6 | 8.5 | 0.4 | 8.5 | 0.4 | ||
23 | 10.0 | 0.6 | 10.1 | 0.4 | 9.3 | 0.4 | 9.3 | 0.1 | 8.3 | 0.4 | 8.6 | 0.4 | 8.5 | 0.4 | 8.4 | 0.4 |
24 | 9.9 | 0.6 | 10.0 | 0.4 | 9.1 | 0.3 | 9.2 | 0.1 | 8.2 | 0.3 | 8.3 | 0.4 | 8.4 | 0.4 | ||
25 | 9.9 | 0.6 | 9.9 | 0.4 | 9.1 | 0.3 | 9.1 | 0.1 | 8.2 | 0.3 | 8.4 | 0.4 | 8.3 | 0.4 | 8.3 | 0.4 |
26 | 9.8 | 0.5 | 9.8 | 0.4 | 9.0 | 0.3 | 9.0 | 0.1 | 8.1 | 0.3 | 8.2 | 0.4 | 8.3 | 0.4 | ||
27 | 9.8 | 0.5 | 9.8 | 0.4 | 9.0 | 0.3 | 8.9 | 0.1 | 8.1 | 0.3 | 8.2 | 0.4 | 8.2 | 0.4 | ||
28 | 9.7 | 0.5 | 9.7 | 0.4 | 8.8 | 0.3 | 8.8 | 0.0 | 8.1 | 0.3 | 8.2 | 0.4 | 8.1 | 0.3 | 8.2 | 0.4 |
29 | 9.7 | 0.5 | 9.6 | 0.4 | 8.7 | 0.3 | 8.8 | 0.0 | 8.1 | 0.3 |