Swan Lake (Goose Pond)

Frankfort, Searsport, Swanville, Waldo, Maine
MIDAS 5492

Secchi transparency (mean, maximum & minimum annual values)

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Swan Lake (Goose Pond)
MIDAS 5492 - Station 1
Year Depth - Meters Depth - Feet
Min Avg Max Min Avg Max
1977 5.8 7.0 7.6 19.0 23.0 24.9
1978 6.8 7.7 8.3 22.3 25.1 27.2
1979 6.5 6.5 6.5 21.3 21.3 21.3
1980 4.8 6.6 8 15.7 21.6 26.2
1981 5 7.4 9.2 16.4 24.3 30.2
1982 5.5 5.6 5.7 18.0 18.4 18.7
1983 4.2 5.0 5.7 13.8 16.5 18.7
1984 4.5 4.9 5.2 14.8 16.1 17.1
1985 8 8.2 8.3 26.2 26.9 27.2
1986 n/a n/a n/a n/a n/a n/a
1987 n/a n/a n/a n/a n/a n/a
1988 n/a n/a n/a n/a n/a n/a
1989 6.6 6.6 6.6 21.7 21.7 21.7
1990 4.9 6.9 8.2 16.1 22.8 26.9
1991 4.2 8.0 8.9 13.8 26.1 29.2
1992 n/a n/a n/a n/a n/a n/a
1993 5.5 5.5 5.5 18.0 18.0 18.0
1994 4.3 6.2 10.1 14.1 20.5 33.1
1995 6.5 8.4 9.5 21.3 27.4 31.2
1996 5 6.3 8.4 16.4 20.5 27.6
1997 6.2 7.5 10.1 20.3 24.6 33.1
1998 4.9 6.2 8.1 16.1 20.2 26.6
1999 5 6.6 8.3 16.4 21.6 27.2
2000 5.3 6.0 7.3 17.4 19.6 24.0
2001 5.4 7.5 8.9 17.7 24.4 29.2
2002 5.8 7.5 9.1 19.0 24.5 29.9
2003 5.8 8.1 10.4 19.0 26.7 34.1
2004 6.1 7.0 9.4 20.0 23.0 30.8
2005 5.1 7.8 10 16.7 25.4 32.8
2006 6.4 7.1 8 21.0 23.2 26.2
2007 6.1 7.6 8.6 20.0 25.1 28.2
2008 7.2 7.9 8.7 23.6 25.8 28.5
2009 4.8 6.3 8.7 15.7 20.7 28.5
2010 7.2 8.1 9.5 23.6 26.7 31.2
2011 6.7 8.7 9.7 22.0 28.5 31.8
2012 6.4 7.6 9.1 21.0 24.8 29.9
2013 8.4 8.5 8.5 27.6 27.7 27.9
2014 6.3 8.1 8.7 20.7 26.5 28.5
2015 6.9 8.7 10.5 22.6 28.5 34.4
2016 6.7 9.4 10.7 22.0 30.7 35.1
2017 6.6 8.0 10 21.7 26.3 32.8
2018 6 7.0 8.5 19.7 23.0 27.9
2019 6.1 7.3 8.9 20.0 24.1 29.2
2020 5.9 7.8 8.9 19.4 25.6 29.2
2021 7.3 8.5 9.2 24.0 27.8 30.2
2022 6.8 8.4 10.2 22.3 27.6 33.5


Understanding Transparency

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Source Data:
Maine Lakes Transparency, Color & Chemistry: Annual Mean Values

Date-specific Secchi data for this and other Maine lakes can be found HERE