Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LITCHFIELD KENNEBEC 12 1 14.18 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
10 m
(32 ft) 		4 m
(13 ft) 		19 ha
(47 ac) 		740,251 m3
(600 ac-ft) 		20 km2
(7.9 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 8.6 3.3 3.9 5.0 6 2.4 4.8 6.8
1977 4.0 4.3 4.5 3
1978 3
1979 36.0 2.5 2.5 2.5 1 0.6 0.6 0.6
1983 20 19.0 21 3.5 4.4 5.3 5 2.0 2.0 2.0
1987 4.0 4.0 4.0 1
1988 4.5 4.5 4.5 1
1992 20 4.3 4.5 4.8 2 4.1 4.1 4.1
1993 17 6.9 9.0 4.7 5.0 5.4 5 2.4 3.5 4.6
1994 3.9 5.2 5.9 5
1995 21 6.8 11.4 5.1 5.4 5.9 5
1996 2.0 4.2 5.3 5
1997 4.1 5.2 6.1 5
1998 16 6.8 12.5 3.2 4.2 4.9 7 2.2 4.8 9.6
1999 4.0 5.4 6.7 9
2000 4.0 4.7 6.0 6
2001 16 7.0 9.2 3.4 5.0 6.0 6 1.2 4.9 8.9
2002 4.2 4.7 5.1 6
2003 18 6.6 14.0 2.9 4.5 7.1 9 7.1 7.1 7.1
2004 16 6.9 9.8 2.5 4.4 5.6 6 5.4 8.6 12.3
2005 2.6 4.7 5.8 6
2006 32 23 142 7.5 11.0 3.1 3.8 4.5 5
2007 19 7.1 10.0 3.4 4.3 5.0 5 1.6 6.5 11.0
2008 2.8 3.8 4.4 6
2009 21 2.6 3.6 5.7 8
2010 23 12.3 2.3 3.8 5.7 7 1.4 4.8 11.0
2011 3.4 4.5 4.9 5
2012 3.3 4.2 4.9 9
2013 20 11.8 2.8 3.8 5.7 8 1.3 10.4 18.0
2014 2.3 3.8 5.8 8
2015 2.4 4.5 5.7 7
2016 25 8.3 3.8 4.7 6.5 8 1.8 4.3 7.4
2017 3.8 4.8 5.8 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
32 20 142 6.9 13 3 21 2 4.4 7.1 5.8 0.6 5.1 18

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2014-09-19
2015-08-12
2015-09-15
2016-08-12
2016-08-26
2016-09-26
2017-08-25
2017-09-22
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 17.9 8.2 24.5 8.1 23.5 8.6 26.4 7.9 25.1 8.1 19.6 7.7 24.0 8.6 20.6 9.3
1 17.8 8.2 24.1 8.2 22.9 8.5 25.5 8.1 25.0 8.0 18.9 7.8 24.0 8.6 20.6 9.2
2 17.1 7.8 23.3 8.3 22.2 8.5 24.7 8.1 24.7 8.0 18.5 7.4 24.0 8.5 20.3 9.2
3 16.9 7.9 22.9 8.2 21.5 7.7 24.2 7.8 24.1 7.8 18.4 7.3 22.5 8.6 20.2 9.2
4 16.2 2.6 18.7 11.4 19.6 4.1 19.5 6.8 21.3 4.9 18.3 7.3 18.5 5.5 19.1 7.6
5 14.4 0.3 14.3 2.5 15.6 0.6 14.7 0.5 17.5 1.1 18.0 6.9 12.7 1.6 15.1 0.6
6 12.0 0.2 10.9 0.9 11.4 0.5 11.1 0.4 11.8 1.0 12.9 0.5 9.5 0.3 10.3 0.6
7 11.1 0.2 8.8 0.8 9.3 0.4 9.7 0.4 9.7 0.7 10.4 0.5 7.9 0.1 8.3 0.2
8 9.2 0.2 8.0 0.9 8.4 0.4 8.9 0.4 8.9 0.6 9.2 0.5 7.3 0.1 7.5 0.2
9 8.3 0.2 7.6 0.9 8.0 0.4 8.5 0.4 8.6 0.6 8.7 0.4 7.0 0.1
10 8.2 0.4 8.3 0.6

Recent temperature and dissolved oxygen profile plots

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