Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
LITCHFIELD KENNEBEC 12 1 13.85 flushes/yr 176 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(28 ft) 		3 m
(9 ft) 		31 ha
(77 ac) 		858,879 m3
(696 ac-ft) 		2 km2
(1 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 11.8 3.7 4.7 6.2 6 2.1 7.0 22.4
1979 21.0 2.4 4.3 5.1 4 1.9 4.1 7.0
1980 4.3 4.3 4.3 1
1982 3.2 4.2 4.8 3
1983 15 6.0 25 4.0 4.8 5.7 5 1.4 1.4 1.4
1987 13 65 9.0 10 23 4.9 5.3 5.7 3
1988 16 16.0 4.0 4.9 5.8 5
1989 2.9 4.1 5.1 5
1990 17 58 6.9 9.3 3.7 4.6 5.9 6
1991 14 6.8 3.9 4.5 5.5 5
1992 16 71 7.1 3.1 4.7 6.0 5 2.7 3.9 7.1
1993 15 6.9 4.9 5.3 5.8 5
1994 4.2 5.1 6.0 5
1995 19 6.8 10.2 3.8 5.4 6.2 6
1996 17.0 2.2 4.2 4.9 5 10.6 10.6 10.6
1997 4.4 5.4 6.1 11
1998 14 6.6 11.2 2.2 4.7 6.6 10 1.6 4.3 8.8
1999 4.5 5.7 6.7 9
2000 4.4 5.2 5.5 6
2001 13 7.0 8.2 5.0 6.0 6.6 6 2.3 3.9 7.6
2002 4.1 5.5 6.8 6
2003 4.9 5.9 6.7 6
2004 15 7.0 9.7 3.9 5.4 6.5 6 2.5 6.1 8.8
2005 3.3 4.9 5.8 6
2006 24 20 107 7.5 12.0 2.9 4.4 5.6 6
2007 18 6.9 12.2 3.5 4.9 6.1 6 2.5 3.9 6.0
2008 17 6.9 31.0 3.1 4.8 5.4 6 3.4 3.4 3.4
2009 20 3.3 4.6 5.5 7
2010 22 9.0 3.4 4.9 6.1 7 1 2.4 2.9 4.4
2011 3.9 4.9 5.5 6
2012 3.9 4.9 5.8 9
2013 19 11.4 3.6 4.5 5.4 8 1.7 6.5 13.0
2014 2.7 4.7 6.3 9
2015 3.0 5.3 6.8 7
2016 21 9.8 4.0 5.2 6.0 9 2.8 3.4 4.5
2017 3.5 5.1 6.2 9
2018 3.8 5.0 6.1 6

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
24 17 75 6.9 13 10 24 2.2 4.9 6.8 6.2 1.4 4.7 22

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
2017-08-25
2018-08-24
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 21.4 8.8 24.0 8.3 24.9 7.6 23.0 8.5 27 8.2 25 8.1 24.1 8.5 24.5 8.4
1 21.3 8.8 23.9 8.1 24.1 7.7 22.9 8.5 26 8.3 25 8.1 24.2 8.5 23.8 8.4
2 21.1 8.8 23.2 7.5 23.8 7.6 22.9 8.4 26 8.1 25 8.2 24.2 8.5 23.6 8.4
3 19.2 5.5 20.0 3.2 23.6 7.8 22.7 8.5 25 8.1 24 8.1 24.1 8.5 23.4 8.4
4 17.8 4.4 17.8 1.7 22.7 8.6 22.2 8.0 24 8.3 24 7.8 20.1 9.4 22.4 9.0
5 14.0 0.5 14.1 0.6 16.6 4.5 19.4 3.3 19 8.2 21 5.5 13.6 5.2 14.1 9.0
6 10.3 0.5 10.8 0.5 12.3 1.4 14.7 0.7 14 0.7 16 1.0 9.6 0.4 10.1 0.8
7 8.9 0.5 9.5 0.5 10.2 0.6 10.9 0.5 11 0.5 12 0.7 8.5 0.1 7.9 0.4
8 8.7 0.5 8.8 0.4 9.3 0.6 10.2 0.4 11 0.4 11 0.6 8.3 0.1 7.3 0.4
9 9.8 0.4

Most recent temperature and dissolved oxygen profile plots

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