Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
TURNER ANDROSCOGGIN 11 1 0.2 flushes/yr 381 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
21 m
(68 ft)
8 m
(25 ft)
77 ha
(190 ac)
5,950,683 m3
(4,824 ac-ft)
2 km2
(0.9 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
1975 12.7 39 10 12 4.3 4.3 4.3 1 6.5 6.5 6.5
1976 16.0 57 10.0 19 5.4 6.9 9.7 4 8.9 10.5 12.1
1977 10.0 4.6 5.2 5.8 3
1978 4.9 6.0 7.2 4
1980 12.0 50 9.0 11.0 4.3 6.0 7.0 4 5.2 5.2 5.2
1982 3.5 4.9 6.6 5
1983 7.0 14.0 13.0 4.2 5.7 7.0 5 1.5 1.5 1.5
1984 5.3 5.9 6.5 3
1987 9.0 48 12.0 23.0 7.2 7.2 7.2 1
1990 6.0 6.7 7.0 4
1991 11.0 48 7.3 8.0 4.5 5.9 8.0 6
1992 10.0 12.0 5.0 5.6 6.2 5
1993 7.0 23.0 5.2 5.7 6.3 6 6.1 7.5 9.0
1994 7.0 12.0 4.2 5.6 6.9 8
1995 11.5 7.7 11.3 5.4 6.2 7.7 7
1996 10.5 12.0 4.9 5.9 7.1 7 4.6 5.1 5.6
1998 11.5 7.0 10.5 10.5 3.1 4.2 6.0 4 1.1 4.3 7.5
1999 52 7.1 8.0 10.0 4.4 5.4 6.3 5 2.7 2.7 2.7
2000 7.1 8.0 11.0 4.8 5.7 6.7 5 4.4 4.4 4.4
2001 10.0 7.0 12.0 12.0 4.4 5.4 6.4 5 3.1 3.1 3.1
2002 4.6 5.7 6.5 5
2003 6.0 6.9 7.0 17.0 5.7 6.6 7.6 5 2.8 2.8 2.8
2004 11.5 7.0 16.0 13.0 4.2 6.2 7.8 6 3.3 3.3 3.3
2005 10.0 49 6.7 7.0 9.0 3.8 5.3 6.0 5 3.3 3.3 3.3
2006 10.5 7.3 7.0 14.0 5.4 5.7 6.0 3 3.7 3.7 3.7
2007 11.0 6.8 9.0 9.0 6.2 6.2 6.2 1 3.0 3.0 3.0
2008 10.0 7.0 9.0 10.0 5.4 6.1 6.8 3 4.9 4.9 4.9
2009 9.5 9.0 8.0 5.1 6.9 8.1 5 5.8 5.8 5.8
2010 11.0 6.0 11.0 5.7 6.4 6.9 7 3.4 3.4 3.4
2011 73 7.0 11.0 5.1 5.6 6.2 4 4.2 4.2 4.2
2012 9.5 9.0 5.3 6.0 7.0 5 2.6 2.6 2.6
2013 6.0 11.0 5.3 5.9 6.2 3 3.0 3.0 3.0
2014 7.5 9.5 5.0 5.6 6.7 4 4.1 5.6 7.1
2015 8 12.5 55 7.2 12.3 5.4 6.2 7.5 5 2.7 2.7 2.7
2016 14.0 66 7.3 9.0 13.0 5.5 6.2 6.8 4 2.4 2.4 2.4
2017 11.0 5.0 8.0 6.2 6.7 7.4 5 3.0 3.0 3.0
2018 5.0 12.0 6.4 7.6 8.7 3 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
8 11 54 7 8.9 10 12 15 3.1 5.9 9.7 4.5 1.1 4.1 12

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2013-08-05
2014-08-01
2014-08-04
2015-09-03
2015-09-04
2016-08-04
2017-08-08
2018-08-07
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23.9 8.5 24.9 8.2 25.5 8.4 26.1 8.5 24.6 8.4 25.8 8.3 24.0 8.4 27.9 8.3
1 23.9 8.5 24.5 8.2 25.5 8.4 25.6 8.3 24.6 8.4 25.5 8.4 24.0 8.4 27.2 8.4
2 23.9 8.5 23.9 8.3 25.4 8.4 25.1 8.4 24.6 8.4 25.3 8.4 23.9 8.4 27.0 8.3
3 23.9 8.5 23.6 8.3 25.1 8.4 24.8 8.4 24.6 8.4 25.2 8.4 23.8 8.4 26.2 8.6
4 23.9 8.5 23.5 8.2 25.0 8.4 24.6 8.4 24.5 8.3 25.2 8.3 23.7 8.4 25.9 8.5
5 23.9 8.5 23.4 8.2 23.0 8.7 24.4 8.3 24.1 8.1 25.0 8.4 23.7 8.4 25.4 8.4
6 20.3 10.4 18.1 12.4 19.0 11.9 21.6 9.5 21.0 9.7 21.6 10.3 18.3 12.3 21.4 11.9
7 16.0 11.8 13.1 13.1 14.3 12.8 16.7 10.4 16.7 10.4 17.6 12.0 13.8 13.3 13.8 14.7
8 12.5 7.6 10.3 11.4 11.2 11.8 13.0 8.4 12.7 8.3 13.8 10.3 10.6 13.2 10.5 14.8
9 11.1 6.3 8.8 9.3 9.9 9.4 10.8 6.3 10.8 5.6 11.9 7.8 9.1 10.8 8.7 12.3
10 9.8 5.6 8.0 7.4 9.1 7.8 9.5 5.8 9.5 5.3 10.7 6.7 8.1 9.1 7.5 10.7
11 9.1 5.7 7.6 6.4 8.5 7.4 8.8 4.9 8.8 4.8 9.8 6.2 7.5 7.1 6.7 7.9
12 8.3 5.0 7.4 5.9 8.1 6.1 8.3 3.7 8.3 3.5 9.2 5.6 6.8 4.5 6.3 6.5
13 7.9 3.8 7.1 4.7 7.8 5.0 7.9 2.6 7.8 2.1 8.4 4.8 6.4 3.8 6.0 5.7
14 7.7 2.6 6.8 3.8 7.6 4.2 7.7 2.1 7.6 1.4 8.0 3.7 6.2 3.2 5.8 4.4
15 7.4 1.6 6.7 3.0 7.4 3.3 7.5 1.0 7.4 0.9 7.7 2.9 6.0 2.6 5.5 3.0
16 7.2 1.6 6.6 2.4 7.4 2.9 7.3 0.3 7.3 0.2 7.6 2.2 5.9 2.1 5.4 2.1
17 7.1 0.7 6.5 2.0 7.2 1.7 7.3 0.2 7.3 0.2 7.5 2.1 5.9 1.4 5.3 1.5
18 7.1 0.4 6.5 1.7 7.2 1.0 7.2 0.2 7.3 0.2 7.4 1.6 5.8 0.8 5.2 0.3
19 7.0 0.2 6.5 0.7 7.2 0.2 7.4 1.2
20 7.0 0.1

Most recent temperature and dissolved oxygen profile plots

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