Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
TURNER ANDROSCOGGIN 11 1 2.2 flushes/yr
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

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
13 54 7 9.1 18 1.5 4 6 3.7 2.1 5.5 14

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2012-08-01
2013-08-10
2013-09-17
2014-08-27
2017-08-08
2017-08-17
2017-08-31
2017-09-16
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26.6 8.6 22.3 8.1 18.4 8.2 26.6 7.9 24.7 8.3 23.4 8.4 20.4 8.7 22.8 8.8
1 26.5 8.7 22.1 8.1 18.2 8.1 25.1 8.0 24.1 8.4 23.4 8.5 20.3 8.7 21.1 9.2
2 25.2 8.9 21.3 7.5 18.0 7.7 22.2 8.0 23.3 8.4 23.1 8.5 20.2 8.7 20.6 9.4
3 22.0 7.2 21.0 7.3 18.0 7.7 20.9 5.9 23.0 8.1 23.0 8.4 20.1 8.6 19.1 9.3
4 14.4 3.2 18.4 4.0 17.5 5.7 18.3 3.3 17.5 5.0 18.3 4.9 19.8 7.8 18.5 8.3
5 11.6 3.2 14.1 3.7 14.6 1.0 13.6 2.6 11.6 4.5 11.7 4.1 12.8 3.2 15.7 4.8
6 10.1 4.2 11.2 4.4 11.7 2.1 10.5 4.5 8.5 4.8 9.1 4.6 9.2 4.0 10.4 3.0
7 9.0 4.8 9.1 5.2 9.4 3.2 8.6 4.8 7.4 5.2 7.5 4.5 7.6 4.0 8.3 2.6
8 7.8 4.2 8.0 5.1 8.0 3.0 7.3 4.5 6.5 4.7 6.8 4.2 6.6 3.9 7.0 2.9
9 7.3 4.0 7.2 4.5 7.3 2.4 6.8 4.0 6.0 4.1 6.1 4.0 6.2 3.0 6.3 2.4
10 7.1 3.8 6.9 4.0 7.0 2.1 6.6 3.7 5.8 3.9 5.9 3.6 5.9 3.1 6.0 2.2
11 7.0 3.7 6.7 3.7 6.9 1.7 6.4 3.3 5.7 3.6 5.8 3.5 5.9 2.7 6.0 2.0
12 6.9 3.4 6.7 3.6 6.8 1.5 6.3 3.1 5.7 3.4 5.7 3.4 5.8 2.7 5.9 1.8
13 6.8 3.0 6.7 3.4 6.7 1.1 6.2 2.8 5.6 3.3 5.7 3.3 5.7 2.5 5.8 1.7
14 6.7 2.2 6.6 2.9 6.6 0.2 6.2 2.1 5.5 2.0 5.6 3.0 5.6 1.7 5.7 0.4
15 6.6 0.4 6.4 1.6 6.5 0.1 6.1 0.9 5.5 2.5 5.5 0.4 5.6 0.4
16 6.3 1.1 6.5 0.1 6.1 0.2 5.5 1.2 5.5 0.4 5.6 0.4
17 5.5 0.5 5.5 0.4 5.6 0.4

Recent temperature and dissolved oxygen profile plots

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