Allagash Lake

T7 R14 WELS, T8 R14 WELS, Piscataquis, Maine
MIDAS 9787

Secchi transparency (mean, maximum & minimum annual values)

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**2019 data is currently in review. Due to circumstances outside of the Lake Stewards of Maine organization, the data is not yet ready for uploading. Thank you for your patience.

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Allagash Lake
MIDAS 9787 - Station 1
Year Depth - Meters Depth - Feet
Min Avg Max Min Avg Max
1987 4.2 5.4 6.6 13.8 17.7 21.7
1988 4.4 5.8 7.2 14.4 19.0 23.6
1989 4.3 5.7 7.5 14.1 18.7 24.6
1990 4.2 5.2 6.1 13.8 17.1 20.0
1991 4.5 5.1 5.5 14.8 16.7 18.0
1992 5 5.7 6.5 16.4 18.7 21.3
1993 5.3 5.9 7 17.4 19.4 23.0
1994 4.5 5.5 6.2 14.8 18.0 20.3
1995 4.5 6.1 6.8 14.8 20.0 22.3
1996 4.3 5.4 7.4 14.1 17.7 24.3
1997 4.6 5.2 7 15.1 17.1 23.0
1998 4.7 5.1 5.3 15.4 16.7 17.4
1999 4.7 5 5.7 15.4 16.4 18.7
2000 n/a n/a n/a n/a n/a n/a
2001 4.7 5.9 6.9 15.4 19.4 22.6
2002 n/a n/a n/a n/a n/a n/a
2003 n/a n/a n/a n/a n/a n/a
2004 4.8 5.2 6 15.7 17.1 19.7
2005 4.5 5.4 6.2 14.8 17.7 20.3
2006 5.8 5.8 5.8 19.0 19.0 19.0
2007 4 4.8 5 13.1 15.7 16.4
2008 3.9 4.7 5.1 12.8 15.4 16.7
2009 4.3 4.7 5.2 14.1 15.4 17.1
2010 3.8 4.6 5.3 12.5 15.1 17.4
2011 3.6 4.1 4.3 11.8 13.5 14.1
2012 3.4 4.3 4.6 11.2 14.1 15.1
2013 3.2 4.2 4.6 10.5 13.8 15.1
2014 5.6 5.9 6.7 18.4 19.4 22.0
2015 5 5.9 6.6 16.4 19.4 21.7
2016 4.7 5.6 7 15.4 18.4 23.0
2017 n/a n/a n/a n/a n/a n/a
2018 4.5 5.6 6.5 14.8 18.4 21.3


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