Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
WINDHAM CUMBERLAND 5 2 0.68 flushes/yr 285 ft
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.

## [1] "No 2018 Secchi Disk Transparency Data"

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 3.3 5.9 6.7 7.5 1
1978 5.8 6.6 8.8 3
1979 5.5 5.9 6.5 4
1980 5.0 6.2 7.0 6
1981 5.5 6.3 7.0 5
1982 4.0 5.5 6.8 5
1983 4.0 5.4 6.5 6
1984 4.0 4.9 6.0 5
1985 5.5 5.9 6.5 5
1986 10 3 7 3.8 5.3 6.5 5 1 2.1 2.1 2.1
1987 3.5 4.8 5.5 5 1
1988 5.0 5.8 7.0 6
1989 3.0 4.9 6.0 4
1990 3.5 5.1 6.0 3
1991 7 6.6 7.2 7.9 5
1992 4.8 4.9 5.0 1
1993 5.0 6.4 7.1 6
1994 5.8 6.3 6.8 5
1995 5.9 6.6 7.6 5
1996 3.9 5.6 6.6 5
1997 8 44.0 7.1 5 9 5.5 5.9 6.3 1 2.4 2.4 2.4
1998 4.8 5.9 6.6 4
2002 6 11 56.0 3 7 7.1 7.2 7.2 1 2.8 2.8 2.8

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
6 9.7 34 7.1 5 3 7.7 3 5.9 8.8 4.2 2.1 2.4 2.8

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1998-09-13
2002-08-28
2004-08-08
2004-08-22
2004-09-05
2006-08-06
2006-08-20
2006-09-02
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 18 9.4 24 7.6 24 7.6 22.3 7.3 22 7.5 28 7.5 24 7.9 20 7.9
1 18 9.4 24 7.6 24 7.6 22.4 7.3 22 7.4 26 7.5 24 8.0 20 7.9
2 18 9.2 24 7.6 24 7.7 22.5 7.3 22 7.3 26 7.3 24 7.8 20 7.8
3 17 9.0 24 7.5 24 7.7 22.5 7.2 22 7.2 25 6.8 23 7.1 20 7.8
4 18 8.6 24 7.5 21 1.7 21.2 3.5 21 3.0 19 0.2 21 3.8 20 7.4
5 18 8.6 24 7.5 17 1.2 18.2 0.3 19 0.2 16 0.7 18 0.2 18 0.3
6 18 8.6 24 7.5 14 1.3 14.7 0.4 15 0.2 14 1.2 14 0.1 15 0.2
7 18 8.4 24 7.5 12 1.4 12.6 0.7 13 0.2 13 1.5 13 0.2 13 0.2
8 18 8.2 20 0.8 12 1.3 11.6 1.0 12 0.2 12 1.2 13 0.1 12 0.2
9 13 5.2 17 0.2 11 2.1 10.9 0.2 11 0.2 12 0.7 12 0.1 12 0.1
10 10.3 0.2 11 0.2 12 0.1 12 0.1 12 0.1
11 9.8 0.2 11 0.1 11 0.1 11 0.1

Most recent temperature and dissolved oxygen profile plots

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