Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
LITCHFIELD KENNEBEC 12 1 1.81 flushes/yr 176 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
25 m
(82 ft) 		8 m
(26 ft) 		106 ha
(262 ac) 		8,385,286 m3
(6,798 ac-ft) 		5 km2
(1.8 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
1976 6.8 5.2 6.5 7.5 7 1.9 3.8 11.0
1979 17.0 3.6 6.1 7.9 4 2.1 3.0 4.2
1980 5.1 5.1 5.1 1
1983 14 6.0 3 5.0 5.7 7.4 5 1.0 1.0 1.0
1987 15 58 6.5 4 15 7.0 7.2 7.5 3
1988 14 8.0 5 5.0 6.9 7.9 5
1989 4.1 5.0 5.8 5
1990 16 57 6.9 6.5 5.0 6.2 7.4 6
1991 14 6.9 5.5 6.7 7.3 5
1992 15 7.0 4.3 6.2 7.8 5 1.5 3.2 6.7
1993 15 6.9 6.1 7.2 8.3 5
1994 4.6 7.0 8.0 5
1995 18 7.0 8.0 6.5 7.7 8.2 5
1996 4.0 6.3 7.6 5
1997 6.9 7.6 8.8 5
1998 15 6.8 8.2 3.2 5.8 7.8 6 2.1 3.2 5.9
1999 5.9 7.3 8.4 6
2000 5.4 6.6 7.8 9
2001 15 7.0 7.2 5.2 7.4 8.9 11 1.8 2.5 4.8
2002 5.5 7.4 8.9 10
2003 5.2 7.6 8.8 10
2004 15 7.0 7.3 5.7 7.3 8.1 6 2.4 2.9 4.5
2005 5.9 6.8 8.1 6
2006 11 18 97 7.5 8.0 4.0 5.9 6.7 6
2007 18 7.0 5.8 5.9 7.0 8.1 6 2.1 3.1 4.3
2008 5.8 6.7 8.1 6
2009 20 5.4 6.3 7.4 5
2010 19 6.0 5.1 6.9 7.8 6 1.8 2.1 2.6
2011 5.4 6.6 7.8 5
2012 12 17 84 7.4 10.0 4.6 5.7 7.1 7
2013 18 7.6 6.3 7.2 8.2 6 1.8 3.0 4.2
2014 6.0 7.3 7.9 9
2015 6.0 7.6 8.7 8
2016 20 7.2 6.0 8.0 9.2 10 1.6 2.6 4.7
2017 6.6 7.6 8.8 8
2018 6.0 7.5 8.3 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
12 16 74 7 7.9 4 7.7 3.2 6.8 9.2 6.3 1 2.8 11

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2014-08-18
2014-08-29
2015-08-12
2015-09-15
2016-08-12
2016-08-26
2017-08-28
2018-08-24
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22.8 8.9 23.6 8.1 24.1 7.8 23.1 8.9 26.1 8.2 25.0 8.1 24.3 8.4 24.4 8.1
1 22.6 8.9 23.6 8.1 23.9 7.8 22.9 8.8 25.3 8.2 24.4 8.1 23.8 8.3 24.2 8.0
2 22.6 8.9 23.5 8.0 23.6 7.9 22.7 8.8 25.2 8.2 24.3 8.2 23.5 8.5 23.9 8.2
3 22.5 8.9 23.5 8.1 23.5 7.8 22.7 8.9 24.8 8.1 24.3 8.2 22.9 8.6 23.8 8.2
4 22.5 9.0 23.5 8.1 23.5 7.9 22.7 8.9 24.6 8.1 24.2 8.2 22.8 8.6 23.8 8.2
5 22.2 8.9 23.4 8.1 23.5 7.9 22.6 8.8 24.2 8.1 24.2 8.2 22.3 8.5 23.5 8.2
6 17.1 12.4 16.4 8.2 18.4 12.2 22.5 8.8 20.3 11.3 21.4 9.8 16.7 12.1 16.0 13.4
7 12.2 11.5 13.7 9.6 13.4 12.3 15.7 11.5 15.6 11.2 16.8 10.2 12.3 11.5 11.3 12.7
8 10.1 9.2 10.3 7.4 11.1 10.5 13.0 9.9 13.0 12.7 13.5 12.3 9.6 9.1 8.7 11.4
9 8.8 7.8 9.1 6.6 9.1 8.4 10.1 6.9 11.1 9.4 11.5 9.4 8.0 7.3 7.3 8.4
10 7.9 7.9 7.9 6.7 8.0 7.5 8.5 6.8 9.6 8.2 9.9 7.7 7.0 6.8 6.4 7.3
11 7.1 7.9 7.2 6.9 7.1 7.5 7.6 6.4 8.5 8.6 8.3 8.4 6.2 6.5 5.7 6.9
12 6.3 7.4 6.5 6.6 6.4 7.4 6.7 6.5 7.7 8.8 7.7 8.4 5.7 6.5 5.3 6.5
13 5.8 6.9 6.1 6.2 5.9 7.2 5.9 6.2 7.0 9.1 7.1 8.6 5.3 6.4 4.9 6.5
14 5.6 6.5 5.8 5.8 5.5 7.1 5.4 5.8 6.6 9.1 6.6 8.7 5.0 5.5 4.7 6.5
15 5.2 6.7 5.3 5.7 5.0 6.5 5.1 5.9 6.3 8.9 6.3 8.7 4.7 5.0 4.5 5.7
16 4.8 6.3 4.8 5.6 6.1 8.9 6.1 8.6 4.6 4.4 4.3 5.4
17 4.7 5.6 4.6 4.4 4.6 6.2 4.5 5.5 5.8 8.0 5.9 7.4 4.4 3.8 4.2 5.0
18 4.2 6.2 4.3 4.8 5.7 6.9 5.7 6.6 4.4 3.1 4.1 4.4
19 4.3 4.0 4.3 3.0 4.0 5.7 4.1 3.6 5.6 6.8 5.6 5.8 4.3 2.2 4.0 3.3
20 3.9 4.8 4.0 2.3 5.5 6.0 5.5 4.6 4.3 0.2 4.0 2.2
21 4.2 1.6 4.2 0.8 3.8 3.5 3.9 0.8 5.5 4.4 5.4 3.2 4.3 0.1 4.0 0.8
22 3.8 1.0 3.9 0.6 5.4 2.7 5.4 1.3 4.3 0.1 4.0 0.5
23 4.2 0.9 4.2 0.7 3.8 0.9 3.9 0.5 5.4 1.2 5.3 1.2 4.2 0.1 4.0 0.5
24 3.8 0.8 3.9 0.5 5.3 0.6 5.3 1.1 4.2 0.1 4.0 0.5
25 4.2 0.7 4.2 0.6 3.8 0.8 3.9 0.5 5.3 0.6 5.3 1.1 4.2 0.1 4.0 0.5
26 4.2 0.4 3.8 0.7 3.9 0.4

Most recent temperature and dissolved oxygen profile plots

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