Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
CARATUNK SOMERSET 30 1 0.1 flushes/yr 1268 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
60 m
(198 ft) 		23 m
(75 ft) 		422 ha
(1,042 ac) 		96,201,876 m3
(77,992 ac-ft) 		11 km2
(4.2 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
1981 9.5 12.3 15.5 6
1982 6.0 16 4.0 9.5 12.0 14.5 6
1983 7.0 29 7.0 11.4 14.0 6
1984 7.0 7.4 9.5 3
1985 8.0 27 1.0 2.5 14.0 14.0 14.0 1
1986 9.0 14.1 18.8 4
1987 9.5 10.2 12.0 3
1988 9.5 12.8 16.0 2
1991 11.0 13.2 15.0 3
1992 7.0 22 6.8 2.0 11.0 12.9 15.0 4 0.7 0.7 0.7
1994 9.3 13.3 16.0 4
1995 14.5 17.1 18.2 4
1996 10.7 12.4 14.1 5
1997 8.4 12.3 15.5 5
1998 12.4 13.5 15.3 5
1999 8.5 30 5.0 11.1 13.3 15.0 6 8.9 8.9 8.9
2000 11.1 13.3 15.4 5
2001 14.9 17.5 19.9 3
2002 11.7 15.0 18.7 5
2003 13.3 15.0 18.6 5
2004 3.0 10.8 30 7.3 5.0 12.0 14.3 15.7 7 0.5 0.5 0.5
2005 10.0 11.8 12.8 6
2006 11.5 12.5 14.5 6
2007 10.0 12.5 13.5 4
2008 3.0 7.6 26 7.0 2 12.0 12.8 14.4 5
2009 8.5 11.7 14.2 5
2010 12.0 14.9 17.1 4
2011 9.9 12.6 16.6 7
2012 11.1 13.3 13.9 9
2013 3.5 7.8 25 7.2 4.0 11.9 13.6 15.6 8 0.9 0.9 0.9
2014 11.5 13.4 15.2 4
2015 2.0 3.0 12.6 14.0 16.0 6 1.0 1.0 1.0
2016 11.5 14.4 15.9 6
2017 13.6 14.9 16.4 6
2018 2.5 11.0 27 7.7 2.5 12.5 14.6 16.0 6 1.0 1.0 1.0

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
3 8.2 26 7.1 3.2 2 2.8 7 13 20 5 0.5 2.2 8.9

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-08-11
1985-08-23
1992-08-31
1999-08-11
2004-08-16
2013-08-20
2015-08-25
2018-08-14
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 19.0 8.7 20.5 8.5 20.0 9.2 20.1 8.9 21.0 8.7 20.0 9.1 22.8 8.1 23.6 8.4
1 19.9 9.3 20.3 8.9 21.0 8.7 20.0 9.4 22.8 8.0 23.6 8.4
2 19.0 8.7 20.5 8.5 19.8 9.3 20.3 8.9 21.0 8.8 19.9 9.3 22.8 8.2 23.6 8.4
3 19.8 9.3 20.2 8.9 21.0 8.7 19.9 9.5 22.7 8.1 23.6 8.4
4 19.0 8.7 20.5 8.5 19.7 9.4 20.2 8.9 21.0 8.8 19.9 9.5 22.7 8.1 23.5 8.4
5 19.7 9.3 20.2 8.9 20.9 8.8 19.9 9.5 22.7 8.1 23.5 8.4
6 19.0 8.7 20.5 8.5 19.5 9.3 20.2 8.9 20.9 8.8 19.8 9.4 22.7 8.1 23.5 8.4
7 19.5 9.4 20.1 8.9 20.9 8.8 19.8 9.5 22.6 8.1 23.3 8.4
8 19.0 8.7 20.3 8.5 19.3 9.4 20.1 8.9 20.9 8.8 19.5 9.6 21.6 8.4 23.3 8.4
9 20.0 8.6 18.3 10.0 20.1 8.9 20.8 8.8 18.7 9.9 20.2 8.7 21.9 9.1
10 14.0 11.6 16.0 10.5 18.0 10.2 17.7 11.9 20.8 8.8 13.7 13.0 19.2 9.0 18.9 10.5
11 16.1 11.0 14.1 12.8 16.7 10.9 10.8 13.5 15.3 10.6 14.5 11.8
12 11.0 14.4 11.0 11.6 12.8 12.6 11.9 13.0 14.8 11.7 9.6 13.6 12.3 11.2 12.4 12.1
13 9.8 13.2 11.1 13.0 12.9 12.2 9.0 13.5 10.8 11.5 10.9 12.2
14 8.0 12.5 9.0 11.8 8.4 13.2 10.5 12.9 11.3 12.5 8.4 13.4 9.6 11.4 9.8 12.2
15 7.9 13.0 9.9 12.8 11.4 12.5 8.0 13.3 8.9 11.5 9.0 12.2
16 8.0 11.7 9.3 12.7 8.4 12.0
17 9.0 12.6 7.2 13.0 8.2 11.3 8.1 12.0
18 7.0 14.0 7.2 11.6 6.8 12.1 8.5 12.5
19 8.1 12.2 6.5 12.6 7.5 11.1 7.3 11.4
20 7.0 11.2 8.0 12.0 7.7 12.2
21 7.8 11.9 6.2 12.4 7.4 10.9 6.9 11.1
22 6.0 13.8 7.7 11.9
23 7.7 11.8 6.1 12.4 6.9 10.9 6.6 10.8
24 7.6 11.8
25 6.5 10.9 7.4 11.6 6.9 12.0 6.0 12.3 6.7 10.9 6.5 10.6
26 5.5 11.6 7.4 11.6
27 7.3 11.4
28
29 7.3 11.4
30 5.0 11.0 6.1 10.5 7.1 11.2 6.6 11.7 5.7 12.0 6.5 10.7 6.3 10.3
31
32
33
34
35 6.0 10.4 7.0 11.1 6.4 11.6 5.6 11.8 6.3 10.6 6.2 10.0
36
37
38
39
40 6.0 10.2 6.3 11.6 5.6 11.7 6.2 10.5 6.1 9.8
41
42
43
44
45 5.9 10.0 6.2 11.5 5.5 11.5 6.1 10.3 6.0 9.6
46
47
48
49
50 5.9 9.2
51
52
53
54
55 5.9 8.8

Most recent temperature and dissolved oxygen profile plots

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