Graham Lake

Ellsworth, Mariaville, Waltham, T8 SD, Hancock, Maine
MIDAS 4350

Secchi transparency (mean, maximum & minimum annual values)

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Graham Lake
MIDAS 4350 - Station 1
Year Depth - Meters Depth - Feet
Min Avg Max Min Avg Max
1973 0.9 1.1 1.2 3.0 3.4 3.9
1974 n/a n/a n/a n/a n/a n/a
1975 n/a n/a n/a n/a n/a n/a
1976 n/a n/a n/a n/a n/a n/a
1977 0.6 1.2 1.5 2.0 3.9 4.9
1978 n/a n/a n/a n/a n/a n/a
1979 n/a n/a n/a n/a n/a n/a
1980 n/a n/a n/a n/a n/a n/a
1981 n/a n/a n/a n/a n/a n/a
1982 n/a n/a n/a n/a n/a n/a
1983 n/a n/a n/a n/a n/a n/a
1984 n/a n/a n/a n/a n/a n/a
1985 n/a n/a n/a n/a n/a n/a
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 n/a n/a n/a n/a n/a n/a
1990 n/a n/a n/a n/a n/a n/a
1991 n/a n/a n/a n/a n/a n/a
1992 n/a n/a n/a n/a n/a n/a
1993 n/a n/a n/a n/a n/a n/a
1994 n/a n/a n/a n/a n/a n/a
1995 n/a n/a n/a n/a n/a n/a
1996 n/a n/a n/a n/a n/a n/a
1997 n/a n/a n/a n/a n/a n/a
1998 0.8 1.2 1.9 2.6 3.9 6.2
1999 0.4 1.4 2.2 1.3 4.6 7.2
2000 1.4 1.9 2.6 4.6 6.1 8.5
2001 1.3 1.8 2 4.3 5.8 6.6
2002 1.3 1.6 2.2 4.3 5.2 7.2
2003 0.6 1.7 2.9 2.0 5.7 9.5
2004 1.3 1.7 2 4.3 5.5 6.6
2005 n/a n/a n/a n/a n/a n/a
2006 n/a n/a n/a n/a n/a n/a
2007 2.4 2.5 2.8 7.9 8.3 9.2
2008 1.7 2.1 2.6 5.6 6.9 8.5
2009 n/a n/a n/a n/a n/a n/a
2010 n/a n/a n/a n/a n/a n/a
2011 n/a n/a n/a n/a n/a n/a
2012 n/a n/a n/a n/a n/a n/a
2013 1 2.1 3 3.3 6.8 9.8
2014 0.8 2.0 2.3 2.6 6.7 7.5
2015 2 2.4 2.8 6.6 7.9 9.2
2016 2 2.0 2 6.6 6.6 6.6
2017 1.9 2.2 2.6 6.2 7.3 8.5
2018 1.2 1.6 1.8 3.9 5.3 5.9
2019 1.4 1.9 2.6 4.6 6.4 8.5


Understanding Transparency

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Distribution of Secchi Disk Transparency in All Maine Lakes

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

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