Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
WINDHAM CUMBERLAND 5 1 1.3 flushes/yr 295 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
9 m
(29 ft) 		4 m
(14 ft) 		15 ha
(37 ac) 		624,146 m3
(506 ac-ft) 		1 km2
(0.6 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
1974 10 5.2 5.2 5.2 1 3.2 3.2 3.2
1975 4.9 4.9 4.9 1
1976 3.4 5.5 7.0 2 4.4 7.0 9.5
1977 5.2 5.2 5.2 1
1978 3.8 3.8 3.8 1
1979 6.8 54 3.5 5.2 6.7 4
1980 4.5 5.6 7.5 5
1981 3.5 4.8 6.0 6
1982 7.0 59 9.0 52 3.5 4.4 5.7 6 1.7 5.6 11.9
1983 2.3 4.1 5.5 7
1984 3.5 4.4 5.0 7
1985 6.0 44 14.0 18 3.5 5.0 7.5 6
1986 4.5 5.1 7.0 6
1987 9.0 57 11.0 25 3.5 5.1 7.0 6
1988 6.0 11.0 61 3.5 5.2 6.5 6
1989 3.0 4.7 6.5 6
1990 7.8 7.1 4.4 6.9 8.4 7
1991 6.0 46 4.5 5.5 6.8 6
1992 5.1 6.3 7.2 6
1993 3.5 5.1 6.2 6
1994 4.6 5.1 5.7 6
1995 5.4 5.6 5.9 2
2013 6 6.5 6.5 6.5 1 1.7 1.7 1.7
2014 5.5 6.8 7.9 5
2015 9 10.5 101 7.0 8.8 110 5.3 6.0 6.9 4 2.5 4.7 6.9

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
9 7.6 63 7.1 10 8 52 2.3 5.3 8.4 4.6 1.7 4.4 12

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1987-09-04
1988-09-07
1990-08-07
1990-08-20
1990-09-06
2013-08-30
2015-08-25
2015-09-02
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 20.5 8.8 20.2 8.5 24.6 7.8 24.0 8.1 22.6 7.9 25 8.2 26 8.1 27 8.2
1 20.0 8.7 20.1 8.5 24.6 7.8 24.0 7.9 22.7 7.9 25 8.2 26 8.1 26 8.2
2 19.9 8.7 20.0 8.5 24.6 7.7 24.0 7.9 22.8 8.0 24 8.3 26 8.1 25 8.3
3 19.8 8.7 20.0 8.4 24.6 7.8 24.0 8.0 22.7 8.0 24 8.2 26 8.0 25 8.3
4 19.5 8.7 20.0 8.4 21.2 12.2 22.8 8.5 22.4 7.8 24 8.2 25 7.7 25 8.0
5 16.7 6.3 19.2 8.1 16.0 12.4 17.1 11.5 19.3 10.8 21 8.0 22 8.6 22 6.3
6 12.2 3.1 14.5 4.1 12.7 9.5 13.2 8.6 14.7 7.9 16 5.3 17 4.7 18 4.5
7 10.0 2.1 11.8 1.0 10.5 2.8 11.1 1.4 11.8 0.5 12 0.6 14 1.3 14 1.2
8 8.6 1.6 9.9 0.8 9.3 0.3 9.3 0.7 10.0 0.3 12 0.4 12 0.5
9 8.0 0.0 8.4 0.1 9.4 0.0

Most recent temperature and dissolved oxygen profile plots

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