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Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
CANAAN SOMERSET 21 1 0.77 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
21 m
(68 ft) 		8 m
(25 ft) 		123 ha
(304 ac) 		9,439,330 m3
(7,653 ac-ft) 		15 km2
(5.6 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 2017 Secchi Disk Transparency Data"

Water Chemistry and Trophic State Parameters

Table Legend:

Color: Color (SPU), Alk: Alkalinity (mg/l CaCO3), SpCon: Specific Conductivity (μS/cm), pH: pH (standard units)

TP = Total Phosphorus (μg/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 (μg/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
1985 8.0 31 4.0 9.0 7.0 7.0 7.0 1
1987 8.5 36 8.9 12.8 4.5 6.0 7.5 6 1.4 2.8 4.4
1988 11.8 7.7 15.2 5.0 6.3 8.7 10 1.1 3.0 4.8
1989 13.3 36 8.1 14.5 4.2 5.7 7.2 7 0.2 3.3 6.7
1990 6.9 7.6 18.0 5.5 6.3 7.0 5 2.4 3.5 5.2
1991 11.0 36 7.3 7.0 23.0 4.0 5.7 7.5 5 2.1 3.1 4.1
1992 12.5 38 6.8 7.2 14.0 5.5 6.6 7.9 5 1.4 2.7 3.3
1993 12.0 34 6.5 6.6 9.5 5.2 6.3 7.8 4 2.7 3.4 4.0
1994 9.0 31 6.2 8.5 9.5 4.0 5.2 6.8 6 1.8 5.0 13.6
1995 11.5 33 6.6 8.1 11.0 5.6 6.5 7.9 5
1996 11.0 37 9.8 18.0 3.7 5.6 6.5 8 2.2 4.4 8.1
1997 5.5 6.6 7.6 2
1998 4.8 5.4 6.3 3
1999 6.1 6.5 6.8 2
2001 9.9 35 7.3 4.0 6.8 6.8 6.8 1 2.8 3.9 5.0
2004 5.0 5.6 5.9 4
2006 19 9.1 32 7.2 9.0 5.8 5.8 5.8 1 4.5 4.5 4.5
2010 6.0 17.0 7.7 7.7 7.7 1 5.0 5.0 5.0

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
19 11 34 6.7 7.3 14 3.7 6.2 8.7 4.2 0.2 3.7 14

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1996-08-02
1996-08-15
1996-08-28
1996-09-11
1996-09-27
2001-08-21
2006-08-15
2010-08-30
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 21.0 9.0 23.0 8.9 22.8 8.2 20.4 8.4 16.0 8.8 24.1 8.1 22.0 8.3 23.5 9.0
1 22.2 8.2 24.2 8.0 22.1 8.4 23.3 9.0
2 21.0 9.0 22.5 9.0 22.0 8.2 20.4 8.4 15.8 8.7 24.2 8.0 22.0 8.4 23.1 9.0
3 22.0 8.2 24.2 8.0 21.9 8.3 23.0 9.0
4 21.0 8.9 22.2 9.0 21.9 8.2 20.3 8.4 15.5 8.6 24.2 8.0 21.8 8.3 22.9 9.1
5 19.0 6.1 20.0 6.4 21.7 7.4 21.5 9.4 21.4 8.0 22.2 9.0
6 17.0 5.1 17.5 3.8 17.0 2.4 19.7 6.0 15.5 8.6 16.8 8.8 15.5 4.3 21.6 8.8
7 14.0 4.2 14.0 2.4 13.2 7.5 13.2 4.9 19.5 8.2
8 11.5 3.9 11.8 3.8 12.3 2.6 11.9 2.1 14.9 7.8 10.0 7.1 11.8 5.1 13.6 5.4
9 10.2 3.2 8.5 7.0 10.5 5.5 12.4 5.0
10 9.1 4.0 9.0 3.9 8.9 3.1 9.0 2.4 9.7 1.9 7.8 6.7 9.9 5.5 11.6 5.0
11 8.4 2.8 7.1 6.3 9.4 5.5 10.8 4.6
12 8.0 3.4 8.2 3.5 8.2 2.6 8.0 1.9 8.3 1.6 6.8 6.0 9.0 5.4 10.0 4.0
13 8.1 2.5 6.6 5.8 8.7 5.4 9.6 3.5
14 8.0 3.2 7.8 2.8 7.9 2.3 7.8 1.2 7.9 0.6 6.4 5.5 8.5 5.0 9.3 2.9
15 7.8 1.8 6.2 4.7 8.3 4.5 9.0 2.0
16 7.5 2.8 7.5 2.4 7.6 1.4 7.4 0.6 7.7 0.4 8.1 3.8 9.0 1.8
17 7.5 1.2 6.1 4.5 8.0 3.4 9.0 1.6
18 7.2 2.5 7.2 1.3 7.3 0.9 7.3 0.3 6.1 4.2 7.9 2.7 8.8 1.0
19 7.2 0.7 6.0 4.0 7.9 2.1 8.8 0.8
20 7.1 1.2 7.2 0.6 7.2 0.3 6.0 2.6 7.8 0.9 8.8 0.7
21 7.2 0.3 8.8 0.6

Recent temperature and dissolved oxygen profile plots

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