Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
TURNER ANDROSCOGGIN 11 1 2.2 flushes/yr 290 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
17 m
(56 ft) 		7 m
(24 ft) 		44 ha
(109 ac) 		3,254,517 m3
(2,638 ac-ft) 		4 km2
(1.5 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
1983 15 11 20 2.6 3.3 4.9 4 3.1 3.1 3.1
1984 2.0 2.9 3.5 7
1985 2.3 3.4 4.5 6
1986 12 48 7 14 2.1 2.6 4.6 5
1987 2.2 3.2 4.0 6
1988 2.5 3.3 4.1 5
1989 1.5 2.5 4.0 4
1990 2.1 2.3 2.5 3
1991 13 48 7.3 7 4.5 4.5 4.5 1 4.1 4.1 4.1
1992 2.5 3.6 4.5 7
1993 6 26 3.5 4.2 5.9 5
1994 3.8 4.4 5.1 5
1995 3.3 4.4 5.2 6
1996 13 48 7.4 13 16 3.0 3.6 4.2 6 6.0 6.0 6.0
1997 5 7.2 7 11 3.7 4.7 5.9 6 3.5 3.5 3.5
1999 14 51 7.1 7 11 5.5 5.5 5.5 1 3.8 3.8 3.8
2000 13 6.7 10 16 4.7 4.7 4.7 1 4.3 4.3 4.3
2001 12 7.3 7 5.4 5.4 5.4 1 7.6 7.6 7.6
2002 14 7.0 9 16 4.3 4.3 4.3 1 10.0 10.0 10.0
2003 12 7.0 7 4.5 4.5 4.5 1 4.3 4.3 4.3
2004 16 7.1 10 3.8 3.8 3.8 1 6.0 6.0 6.0
2005 13 49 6.7 8 5.0 5.0 5.0 1 4.0 4.0 4.0
2006 14 7.4 11 20 3.0 3.0 3.0 1 14.0 14.0 14.0
2007 14 6.8 10 19 5.6 5.6 5.6 1 4.2 4.2 4.2
2008 12 6.9 13 4.0 4.0 4.0 1 5.9 5.9 5.9
2009 15 13 3.9 3.9 3.9 1 5.2 5.2 5.2
2010 16 10 27 4.9 4.9 4.9 1 6.2 6.2 6.2
2011 73 8 13 3.4 4.4 5.2 3 3.2 3.2 3.2
2012 12 9 11 3.0 3.8 4.4 6 7.2 7.2 7.2
2013 15 12 19 2.9 3.7 5.2 7
2014 15 58 9 36 3.1 4.2 5.0 6 2.1 4.0 6.8
2015 3.3 4.8 6.0 5
2016 4.4 5.1 5.5 4
2017 14 6 11 3.5 4.0 5.0 7 3.8 3.8 3.8
2018 32 15 76 7.4 5 27 4.1 4.9 6.4 5 2.0 2.0 2.0

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
32 13 56 7 9 18 1.5 4.1 6.5 3.7 2 5.4 14

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2013-08-10
2014-08-27
2017-08-08
2017-08-17
2017-08-31
2018-08-05
2018-08-21
2018-08-28
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22.3 8.1 26.6 7.9 24.7 8.3 23.4 8.4 20.4 8.7 28.2 7.4 24.7 7.9 25.1 8.3
1 22.1 8.1 25.1 8.0 24.1 8.4 23.4 8.5 20.3 8.7 26.3 7.7 24.7 8.0 24.8 8.3
2 21.3 7.5 22.2 8.0 23.3 8.4 23.1 8.5 20.2 8.7 25.7 7.7 24.3 7.9 24.6 8.3
3 21.0 7.3 20.9 5.9 23.0 8.1 23.0 8.4 20.1 8.6 25.4 7.3 24.1 7.8 24.0 8.2
4 18.4 4.0 18.3 3.3 17.5 5.0 18.3 4.9 19.8 7.8 20.5 5.4 23.1 6.1 22.0 6.7
5 14.1 3.7 13.6 2.6 11.6 4.5 11.7 4.1 12.8 3.2 14.2 4.8 14.5 4.5 13.6 4.0
6 11.2 4.4 10.5 4.5 8.5 4.8 9.1 4.6 9.2 4.0 9.1 5.3 9.4 4.9 9.9 4.3
7 9.1 5.2 8.6 4.8 7.4 5.2 7.5 4.5 7.6 4.0 6.9 5.2 6.5 4.6 7.6 4.4
8 8.0 5.1 7.3 4.5 6.5 4.7 6.8 4.2 6.6 3.9 5.7 4.4 5.5 4.1 6.1 4.1
9 7.2 4.5 6.8 4.0 6.0 4.1 6.1 4.0 6.2 3.0 5.0 4.1 5.1 3.7 5.3 3.4
10 6.9 4.0 6.6 3.7 5.8 3.9 5.9 3.6 5.9 3.1 4.8 3.5 4.8 3.3 4.9 3.2
11 6.7 3.7 6.4 3.3 5.7 3.6 5.8 3.5 5.9 2.7 4.7 3.5 4.7 3.1 4.7 2.8
12 6.7 3.6 6.3 3.1 5.7 3.4 5.7 3.4 5.8 2.7 4.6 3.2 4.6 2.9 4.6 2.5
13 6.7 3.4 6.2 2.8 5.6 3.3 5.7 3.3 5.7 2.5 4.5 2.9 4.5 2.4 4.6 1.3
14 6.6 2.9 6.2 2.1 5.5 2.0 5.6 3.0 5.6 1.7 4.4 0.4 4.5 0.5 4.6 0.5
15 6.4 1.6 6.1 0.9 5.5 2.5 5.5 0.4 4.5 0.3 4.5 0.4 4.5 0.3
16 6.3 1.1 6.1 0.2 5.5 1.2 5.5 0.4 4.5 0.3 4.5 0.3 4.6 0.3
17 5.5 0.5 5.5 0.4 4.6 0.2

Most recent temperature and dissolved oxygen profile plots

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