Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
STANDISH CUMBERLAND 4 1 1.56 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
7 m
(22 ft) 		3 m
(11 ft) 		82 ha
(203 ac) 		2,731,347 m3
(2,214 ac-ft) 		9 km2
(3.5 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
1975 7 2.6 2.6 2.6 1 2.6 2.6 2.6
1977 4.0 52 23 2.6 3.0 3.4 1 5.5 6.0 6.4
1979 8 2.5 2.6 3.4 3
1980 6.0 39 16 2.0 2.4 3.3 5 3.6 5.5 8.9
1984 2.1 3.0 3.7 5
1985 5.0 41 15 3.7 3.7 3.7 1
1989 1.6 2.3 2.8 6
1990 10.0 45 6.4 14 2.1 2.6 3.0 6 5.9 5.9 5.9
1999 5.0 57 13 28 2.8 3.0 3.1 1 19.0 19.0 19.0
2002 2.3 2.7 3.1 5
2007 3.0 3.5 4.2 4
2008 94 5.8 67 6.8 13 2.1 2.8 3.7 7
2009 1.7 2.8 3.4 5
2017 63 9.0 87 7.0 16 3.5 3.5 3.5 1 8.3 8.3 8.3

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
78 6.4 55 6.7 15 9.3 28 23 1.6 2.9 4.2 3.6 2.6 7.9 19

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1977-09-02
1980-09-24
1985-09-09
1990-09-12
1999-08-27
2017-09-12
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23 8.8 19 9.0 21 8.8 21 7.9 24 8.7 21 8.8
1 23 8.8 21 8.8 21 7.8 24 8.6 20 8.9
2 23 8.8 18 8.6 21 8.8 21 7.6 23 8.1 20 8.6
3 23 8.8 20 8.3 21 7.6 22 5.5 20 8.2
4 20 5.1 18 8.6 19 6.8 20 4.9 21 1.7 19 5.1
5 18 8.0 19 5.8 19 2.5 19 0.2
6 18 6.5 18 4.7 17 0.2 18 0.2

Recent temperature and dissolved oxygen profile plots

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