Whetstone Pond (Sylvan Lake)

Kingsbury Plt, Blanchard Twp, Piscataquis, Maine
MIDAS 0296

Secchi transparency (mean, maximum & minimum annual values)

Data and graph may take several seconds to load

Select Station:

275

Whetstone Pond (Sylvan Lake)
MIDAS 0296 - Station 1
Year Depth - Meters Depth - Feet
Min Avg Max Min Avg Max
1986 7.9 7.9 7.9 25.9 25.9 25.9
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 7 7.0 7 23.0 23.0 23.0
1990 n/a n/a n/a n/a n/a n/a
1991 6 7.6 8.5 19.7 24.9 27.9
1992 7.5 8.6 9.5 24.6 28.1 31.2
1993 7.5 9.2 10 24.6 30.1 32.8
1994 7.5 8.7 10 24.6 28.4 32.8
1995 7.5 8.2 10 24.6 26.8 32.8
1996 6.1 6.7 7 20.0 22.1 23.0
1997 n/a n/a n/a n/a n/a n/a
1998 4.7 6.9 8.3 15.4 22.5 27.2
1999 6.1 7.4 8.6 20.0 24.4 28.2
2000 4.8 6.8 7.6 15.7 22.3 24.9
2001 7.6 7.8 7.9 24.9 25.4 25.9
2002 7.2 7.9 8.5 23.6 25.8 27.9
2003 6.1 6.8 7.5 20.0 22.4 24.6
2004 n/a n/a n/a n/a n/a n/a
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 5.8 6.2 7.1 19.0 20.4 23.3
2008 5 5.9 6.7 16.4 19.4 22.0
2009 5.3 5.9 6.6 17.4 19.3 21.7
2010 5.5 6.7 7.7 18.0 22.0 25.3
2011 4 5.4 6.5 13.1 17.8 21.3
2012 4.6 5.5 6.3 15.1 18.1 20.7
2013 5 5.8 7.2 16.4 18.9 23.6
2014 5.3 5.9 6.4 17.4 19.3 21.0
2015 5.3 6.4 7.5 17.4 21.1 24.6
2016 6.1 6.6 7.1 20.0 21.7 23.3
2017 6.1 6.8 7.5 20.0 22.1 24.6
2018 6.2 7.1 7.9 20.3 23.2 25.9
2019 6 7.1 8 19.7 23.2 26.2
2020 7 7.7 8.4 23.0 25.1 27.6
2021 n/a n/a n/a n/a n/a n/a
2022 7.2 7.6 8.4 23.6 24.9 27.6


Understanding Transparency

Click here for more »



Click for depth map


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