Walker Pond

Brooksville, Hancock, Maine
MIDAS 4640

Secchi transparency (mean, maximum & minimum annual values)

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Walker Pond
MIDAS 4640 - Station 1
Year Depth - Meters Depth - Feet
Min Avg Max Min Avg Max
1980 6.7 6.7 6.7 22.0 22.0 22.0
1981 5 5.1 5.3 16.4 16.7 17.4
1982 5 5.8 7 16.4 19.1 23.0
1983 5 5.6 6.2 16.4 18.5 20.3
1984 6 6.3 6.8 19.7 20.7 22.3
1985 5.5 5.8 6.3 18.0 19.0 20.7
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 5 6.3 7.4 16.4 20.8 24.3
1989 5.5 6.4 8.2 18.0 20.9 26.9
1990 4 6.6 8 13.1 21.7 26.2
1991 4.5 6.7 8 14.8 22.0 26.2
1992 6 7.0 8.6 19.7 22.9 28.2
1993 8 8.9 9.8 26.2 29.2 32.2
1994 8.2 10.4 12.5 26.9 34.0 41.0
1995 7.4 9.7 13.5 24.3 31.8 44.3
1996 9.6 9.6 9.6 31.5 31.5 31.5
1997 5.2 7.2 10.2 17.1 23.7 33.5
1998 6.3 8.1 11.6 20.7 26.5 38.1
1999 5.2 6.6 7.6 17.1 21.5 24.9
2000 7 8.8 10.7 23.0 28.8 35.1
2001 8.1 9.7 13.2 26.6 31.7 43.3
2002 7.1 9.1 11.4 23.3 29.8 37.4
2003 6.8 8.4 10.5 22.3 27.5 34.4
2004 7.6 8.8 11.4 24.9 29.0 37.4
2005 7.8 8.0 8.2 25.6 26.2 26.9
2006 4.8 6.3 7.4 15.7 20.8 24.3
2007 7.6 8.0 8.3 24.9 26.4 27.2
2008 6.3 7.0 8 20.7 22.9 26.2
2009 6.1 7.0 8.9 20.0 23.0 29.2
2010 7.1 8.1 8.8 23.3 26.5 28.9
2011 7.4 8.3 9.4 24.3 27.1 30.8
2012 7.7 8.0 8.2 25.3 26.1 26.9
2013 7 7.3 7.8 23.0 23.8 25.6
2014 7.5 7.8 8.1 24.6 25.5 26.6
2015 7.6 7.7 7.8 24.9 25.4 25.6
2016 7.3 8.1 8.4 24.0 26.5 27.6
2017 6 7.5 9 19.7 24.6 29.5
2018 8.3 8.4 8.4 27.2 27.5 27.6
2019 6.5 6.6 6.7 21.3 21.7 22.0


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