Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LINNEUS AROOSTOOK 53 1 1.04 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
15 m
(49 ft) 		6 m
(19 ft) 		413 ha
(1,020 ac) 		23,583,908 m3
(19,120 ac-ft) 		43 km2
(16 mi2)

Secchi Disk Transparency Graphs

Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.

Water Chemistry and Trophic State Parameters

Table Legend:

Color: Color (SPU), Alk: Alkalinity (mg/l CaCO3), SpCon: Specific Conductivity (\(\mu\)S/cm), pH: pH (standard units)

TP = Total Phosphorus (\(\mu\)g/L) – EC: Epilimnion Core, SG: Surface Grab, BG: Bottom Grab, PG: Profile Grab

SDT = Secchi Disk Transparency (m) – Min: minimum value, Avg: average value, Max: maximum value, n: number of months with Secchi readings per year, b: number of times Secchi disk was observed touching the bottom of the lake per year

Chl = Chlorophyll-a (\(\mu\)g/L) – Min: minimum value, Avg: average value, Max: maximum value
Year Color Alk SpCon pH TP-EC TP-SG TP-BG TP-PG SDT-Min SDT-Avg SDT-Max SDT-n SDT-b Chl-Min Chl-Avg Chl-Max
1977 9.0 25 9 8.3 4.3 4.8 5.4 2
1978 3.0 3.0 3.0
1981 13.0 45 3.4 4.1 5.6 4 3.2 3.2 3.2
1982 3.7 4.6 5.5 5
1983 3.3 4.1 4.8 5
1984 9.5 30 10 82 2.9 3.9 6.8 7 2.0 2.0 2.0
1985 3.9 4.9 6.0 5
1986 9.0 2.1 3.5 4.4 6
1987 11.0 37 8 8 3.2 4.2 6.3 7
1988 3.0 3.7 4.9 6
1989 3.0 3.7 5.8 6
1990 7 2.2 3.8 5.9 6 4.0 4.0 4.0
1991 2.8 3.4 4.2 6
1998 4.8 5.8 6.5 4
1999 5.6 6.7 7.2 6
2000 13.0 32 13 10 6.4 7.0 7.8 6 4.2 4.2 4.2
2001 11.5 34 7.4 8 6 6.3 7.1 7.9 6 3.3 3.3 3.3
2002 20 13.5 34 9 11 5.3 5.9 6.4 6 3.8 3.8 3.8
2003 6.5 6.8 7.3 6
2004 15 14.5 34 7.2 7 12 5.8 6.6 7.2 6 4.6 4.6 4.6
2005 5.2 5.4 6.3 7
2006 5.1 5.2 5.3 8
2007 15 10.2 30 7.4 8 9 4.4 5.4 6.1 9 4.7 4.7 4.7
2008 4.2 5.0 5.9 8
2009 4.8 5.4 5.9 6
2010 8 12 5.3 7.0 8.4 7 3.2 3.2 3.2
2011 5.1 5.2 5.3 6
2012 5.0 5.1 5.2 7
2013 26 10.9 29 7.2 9 7 4.9 5.1 5.1 4 8.7 8.7 8.7
2014 5.7 5.8 5.9 7
2015 5.4 5.7 5.9 7
2016 5.7 5.8 5.8 4
2017 5.7 5.8 5.9 7

Lake Chemistry and Trophic Summary Data - Overall Summary Values:

Avg Color Avg Alk Avg SpCon pH Avg TP-EC Avg TP-SG Avg TP-BG Avg TP-PG SDT-Min SDT-Avg SDT-Max SDT-n Chl-Min Chl-Avg Chl-Max
19 11 33 7.3 8.7 17 8.3 2.1 5.2 8.4 6 2 4.1 8.7

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2009-08-08
2010-08-25
2010-08-28
2012-08-12
2013-09-04
2014-09-21
2015-08-09
2017-08-30
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26 7.6 22 8.5 24 8.2 28 7.8 21.0 8.6 18 8.6 26 12.5 22 10.2
1 26 7.5 22 8.6 24 8.2 28 7.8 21.0 8.7 17 8.3 26 12.5 20 9.3
2 26 7.6 22 8.6 24 8.2 28 7.6 20.9 8.7 17 8.1 25 11.9 20 7.8
3 26 7.6 22 8.6 24 8.2 28 7.6 20.9 8.7 16 8.1 25 11.9 20 7.3
4 24 7.0 22 8.6 24 8.0 28 7.0 20.9 8.7 16 8.1 25 11.2 19 6.7
5 24 6.8 22 8.6 23 7.9 27 7.0 20.8 8.7 16 8.0 23 10.9 19 5.8
6 24 6.5 22 8.5 22 7.6 27 6.8 20.7 8.5 16 8.0 23 10.9 18 5.4
7 23 6.1 19 2.2 22 7.5 27 6.3 18.5 4.7 15 7.9 23 10.1 18 4.3
8 23 5.9 17 0.2 21 7.4 26 6.0 15.4 1.8 15 7.8 21 9.3 18 3.6
9 25 6.0 14 0.1 21 7.0 25 5.5 11.8 0.7 15 7.6 21 8.7 18 2.8
10 23 5.7 13 0.2 21 6.8 25 5.1 10.6 0.6 15 7.5 18 8.1 18 1.6
11 22 4.0 13 0.1 17 1.6 22 4.1 10.2 0.6 14 6.9 18 8.0 18 1.2
12 20 4.0 12 0.1 14 1.4 20 3.2 9.7 0.6 13 6.4 17 7.3 18 1.0
13 18 3.1 12 0.1 13 1.3 19 2.7 9.4 0.7 13 5.1 17 7.0
14 17 1.5 11 0.1 13 1.1 19 2.3 9.1 0.7 11 4.7 16 6.9
15 17 0.9 11 0.1 14 1.2 18 2.0 10 4.2 16 6.4
16 11 0.1

Recent temperature and dissolved oxygen profile plots

Temperature (°C), Dissolved Oxygen (mg/L)