Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T04 R03 WELS AROOSTOOK 52 1 0.14 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
20 m
(67 ft) 		10 m
(32 ft) 		741 ha
(1,830 ac) 		71,500,000 m3
(57,966 ac-ft) 		12 km2
(4.5 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
1974 7.7 66 6.4 6.3 8.6 11.6 6 0.6 1.2 1.6
1975 130.1 20 6.3 6.4 9.6 12.7 7 0.6 1.4 2.8
1976 8.6 6.5 6.1 8.0 10.4 6 0.8 1.8 2.6
1977 11.7 4.0 8.5 10.2 12.5 5
1978 7.5 9.5 11.5 2
1979 11.0 11.9 13.5 3
1980 9.0 30 5.0 8.0 8.0 10.4 14.0 4 1.1 1.1 1.1
1981 10.5 12.4 14.0 5
1982 10.5 10.5 10.5 2
1983 5.0 6.0 10.0 11.3 11.7 12.5 3 0.8 0.8 0.8
1984 11.0 11.4 11.8 2
1986 6.0 26 5.0 7.0 10.9 13.9 3
1988 12.4 6.6 9.2 11.6 3
1989 7.2 11.2 11.2 11.2 1 1.0 1.0 1.0
1990 5.0 7.2 9.4 13.0 7 0.9 0.9 0.9
1991 11.0 7.4 5.0 6.0 8.6 10.1 4
1992 7.5 8.7 9.5 5 1.0 1.0 1.0
1993 7.0 8.0 9.6 13.0 4 0.9 0.9 0.9
1995 8.0 4.0 11.0 7.0 9.5 11.0 3
1996 5.0 6.8 8.3 5 1
1998 5.0 11.0 6.7 8.7 10.9 6 1.0 1.0 1.0
1999 7.8 10.2 12.7 5
2001 9.0 26 7.2 4.0 7.5 9.4 11.5 5 1.5 1.5 1.5
2002 8.2 10.1 12.0 4
2003 2.5 10.0 29 4.0 7.3 9.9 10.9 3 0.9 0.9 0.9
2004 6.0 12.2 30 7.2 4.0 10.9 10.9 10.9 1 1.4 1.4 1.5
2005 4.0 10.6 11.3 11.9 5
2006 5.0 10.3 10.5 10.9 3
2007 4.0 7.1 26 7.2 4.0 4.0 9.8 11.3 12.4 6 0.9 0.9 0.9
2008 3.0 9.3 10.3 11.6 4
2009 3.0 10.3 10.8 11.8 4
2010 3.0 10.2 11.2 12.5 5
2011 4.0 9.9 10.8 11.6 5
2012 5.0 9.3 11.4 12.8 6
2013 4.0 7.5 26 7.1 4.0 6.3 8.8 12.6 6 1.6 1.6 1.6
2014 2.0 7.7 10.1 11.8 8
2015 3.0 9.9 10.5 10.9 3
2016 4.0 10.5 11.7 13.5 6
2017 4.0 8.2 10.7 12.6 6

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
4.1 18 31 7.2 5 4.2 8.4 7.2 5 10 14 4.4 0.6 1.2 2.8

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2007-08-13
2013-08-28
2014-08-12
2014-09-28
2017-08-10
2017-08-26
2017-09-12
2017-09-26
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22 8.7 22 9.1 24 8.7 18 9.4 22 8.4 20 8.3 18 9.0 21 9.0
1 22 8.6 22 9.2 24 8.7 17 9.4 22 8.4 21 8.3 18 9.0 21 9.0
2 22 8.7 22 9.3 23 8.7 18 9.5 22 8.4 21 8.3 18 9.0 21 9.0
3 22 8.8 22 9.3 23 8.7 17 9.5 22 8.4 21 8.3 18 9.0 21 9.1
4 22 8.8 22 9.3 23 8.8 17 9.5 22 8.3 21 8.3 18 9.0 20 9.3
5 21 8.9 21 9.3 23 8.7 17 9.5 22 8.3 21 8.3 18 9.0 20 9.4
6 21 8.9 21 9.3 23 8.8 16 9.5 22 8.3 21 8.3 18 9.0 20 9.4
7 21 9.0 21 9.3 22 9.1 16 9.5 22 8.3 21 8.3 18 9.0 19 9.3
8 21 9.1 21 9.4 20 10.4 16 9.5 22 8.3 21 8.3 18 9.0 19 9.6
9 19 9.6 20 9.4 18 10.7 16 9.5 22 8.3 21 8.3 18 9.0 19 9.4
10 18 10.0 20 9.1 17 11.0 16 9.5 21 8.8 21 8.4 18 8.9 19 9.2
11 16 10.6 18 8.2 15 11.2 16 9.5 18 10.1 20 8.4 18 8.9 18 8.7
12 15 10.8 15 7.9 13 11.2 16 9.5 15 10.8 18 9.5 18 8.9 18 8.5
13 14 10.7 14 6.6 12 10.5 16 9.2 14 10.8 15 9.9 18 8.8 18 7.6
14 12 10.2 13 5.6 12 10.1 14 7.6 14 10.6 14 9.2 16 7.6 17 6.7
15 12 9.9 13 5.2 11 10.0 14 7.1 13 9.5 13 8.6 14 6.9 14 4.1
16 11 9.6 11 9.7 13 6.1 13 8.8 13 7.8 14 6.0 14 3.9
17 11 9.1 12 4.5 11 9.4 12 5.3 13 8.1 13 6.9 13 4.9 14 3.6
18 11 9.3 12 5.1 13 4.8
19 12 3.6 10 8.4 11 4.2 13 4.5

Recent temperature and dissolved oxygen profile plots

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