Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
WINDHAM CUMBERLAND 5 2 0.68 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
16 m
(52 ft) 		5 m
(17 ft) 		552 ha
(1,363 ac) 		33,094,456 m3
(26,830 ac-ft) 		16 km2
(6 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 3 6.8 6.8 6.8 1
1977 8 6.6 6.6 6.6 1
1978 4.8 6.1 7.5 3
1979 12.0 32 10 7 5.5 6.1 6.7 2
1980 6.0 6.8 7.5 6
1981 6.5 7.4 8.0 5
1982 43 4.0 5.0 6.0 5 5.4 5.4 5.4
1986 9.0 30 6 7 7.0 7.0 7.0 1 2.7 2.7 2.7
1987 10.0 40 8 19 7.8 7.8 7.8 1
1989 5.8 8.2 9.8 5
1991 5 11 5.6 6.6 7.7 7
1992 11 5.5 6.9 7.7 3
1993 5.0 6.2 7.2 6
1994 37 5.8 6.3 6.9 5
1995 6.2 6.6 7.2 5
1996 5.1 6.0 6.9 5
1998 10.0 43 8 10 5.0 5.6 6.3 4 3.7 3.7 3.7
1999 9.5 49 16 5.9 6.8 8.2 6 5.4 5.4 5.4
2000 3.6 5.7 7.1 5
2001 6.0 7.2 8.1 5
2002 6.6 7.7 9.3 5
2003 6.6 7.7 8.8 6
2004 11 14.8 56 7.3 5 8 6.4 7.2 8.1 6 3.4 3.4 3.4
2005 11 9.5 54 7.2 5 7 4.6 6.7 7.8 5 3.6 3.6 3.6
2006 5.5 6.2 7.3 5
2007 4.0 6.4 7.8 8
2008 6.1 6.5 7.0 3
2009 5.2 6.2 6.9 6
2010 6 18 4.8 6.7 7.6 6 3.7 3.7 3.7
2011 5.2 6.3 7.0 5
2012 5 5.1 6.2 7.1 5
2013 6.1 6.6 7.3 4
2014 5.5 6.7 7.4 7
2015 6.5 7.8 8.7 7
2016 6.3 7.7 8.6 8
2017 8 12.0 68 7.2 9 4.7 6.5 8.6 9 2.5 2.5 2.5

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
10 11 42 7.3 8 5.5 13 3.6 6.7 9.8 4.9 2.5 3.8 5.4

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2015-09-27
2016-08-14
2016-08-27
2016-09-20
2017-08-13
2017-08-26
2017-08-29
2017-09-17
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 21 8.5 26 8.0 25.2 7.9 23 8.4 24.3 8.9 23.3 8.1 23 8.1 23.3 8.9
1 21 8.5 25 8.0 25.5 7.9 22 8.4 24.3 8.9 23.3 8.1 23 8.0 22.6 9.0
2 21 8.5 25 8.0 25.0 7.9 22 8.4 24.3 8.9 23.3 8.1 23 8.0 22.2 9.0
3 21 8.5 25 8.0 24.9 7.9 22 8.4 24.2 8.8 23.3 8.1 23 8.1 21.5 9.1
4 21 8.5 25 8.0 24.8 7.9 22 8.2 24.0 8.7 23.2 8.1 23 8.1 20.8 9.2
5 21 8.5 25 7.9 24.7 7.8 22 8.2 23.6 8.4 23.2 8.1 22 8.0 20.6 9.1
6 20 8.4 25 7.9 24.6 7.8 22 8.1 21.7 6.0 23.2 8.1 22 8.1 20.4 8.9
7 20 8.4 23 7.6 24.3 7.5 22 8.1 18.6 5.4 22.4 6.0 20 5.1 20.0 8.0
8 20 8.4 18 8.0 19.5 6.6 21 7.9 15.1 5.2 17.3 3.6 16 3.8 18.9 6.2
9 20 8.4 15 7.5 14.8 5.4 18 2.8 12.7 4.7 13.1 3.4 13 4.0 14.8 2.5
10 20 8.3 13 4.6 12.9 3.1 14 0.1 10.9 4.6 11.1 3.3 11 3.9 11.6 2.4
11 14 4.0 11 1.4 11.9 2.0 12 0.1 10.0 3.9 10.1 2.4 10.4 1.2
12 14 4.0 11 0.1 11.2 0.2 11 0.1 9.5 2.5 9.6 1.6 9.8 0.1
13 12 2.0 10 0.1 10.7 0.1 11 0.1 9.4 2.3 9.6 1.4 9.3 0.1
14 11 0.6 10 0.1 10.3 0.1 10 0.1 9.1 1.7 9.4 0.6 9.0 0.1
15 10 0.1 9.9 0.1 9.0 1.3 9.4 0.1 8.9 0.1

Recent temperature and dissolved oxygen profile plots

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