Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
CHINA KENNEBEC 13 1 0.65 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
26 m
(85 ft) 		8 m
(25 ft) 		650 ha
(1,606 ac) 		72,000,000 m3
(58,371 ac-ft) 		17 km2
(6.6 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
1971 5.2 6.4 8.1 4
1972 4.7 5.6 6.2 5
1973 3.5 4.4 5.3 2
1976 15 4.0 4.0 4.0 1 4.1 4.1 4.1
1977 12 4.7 4.7 4.7 1
1978 5.0 5.3 5.6 4 2.9 2.9 2.9
1979 30 4.6 5.0 5.6 5
1980 4.9 6.1 7.5 6
1981 3.2 5.2 7.8 6
1982 19 12 10 3.5 5.2 7.2 6 4.2 4.2 4.2
1983 16 27 20 2.0 4.0 6.6 6 10.0 10.0 10.0
1984 16 63 18 1.6 3.4 5.6 5 5.0 11.5 20.0
1985 19 1.8 3.5 5.0 5 4.4 7.8 10.9
1986 14 20 1.5 4.0 7.1 7 2.3 10.5 24.7
1987 21 67 1.0 2.9 4.7 5 3.3 14.6 35.4
1988 22 1.4 3.3 5.1 8 4.1 14.4 29.3
1989 17 19 2.3 3.7 6.4 7 5.4 9.9 19.3
1990 18 2.4 3.9 5.8 6 1.9 8.8 17.3
1991 16 20 2.0 2.9 4.5 5 4.7 14.2 21.9
1992 15 15 1.6 3.2 4.4 6 3.2 10.8 18.1
1993 16 18 1.9 3.4 5.3 6 3.6 11.8 21.1
1994 16 27 18 1.8 3.4 6.7 5 3.7 13.4 26.6
1995 17 21 55 19 1.6 3.5 6.4 5
1996 18 22 2.0 4.0 6.6 6 3.5 10.5 16.7
1997 18 27 1.7 3.2 6.7 8 4.8 12.4 26.1
1998 18 82 7.4 15 14 19 1.0 3.5 6.9 9 2.6 13.8 38.7
1999 17 95 6.8 26 24 23 1.0 1.9 3.7 6 6.2 24.3 44.4
2000 16 80 7.1 19 20 21 1.5 3.2 5.8 8 4.1 14.8 29.1
2001 16 83 6.8 15 23 24 1.6 3.5 6.6 9 3.5 10.7 18.6
2002 17 88 7.2 17 20 29 1.3 3.5 7.5 7 3.0 14.3 31.8
2003 12 88 6.7 18 19 1.3 3.4 6.2 7 2.9 11.4 26.5
2004 20 59 6.5 20 37 1.8 2.9 5.0 7 4.0 12.2 17.0
2005 20 59 6.7 19 22 1.6 3.2 6.2 9 4.2 10.5 15.5
2006 19 54 6.8 18 38 1.4 3.4 5.4 10 3.2 13.3 36.0
2007 57 6.5 20 24 1.3 2.6 4.0 11 6.6 15.9 27.0
2008 7.5 20 82 7.4 19 29 23 1.8 3.1 5.8 10 2.0 15.5 42.0
2009 82 7.3 17 29 21 1.4 3.0 5.1 13 4.2 11.6 21.0
2010 84 6.0 17 36 34 1.2 3.7 7.2 13 2.9 12.5 28.0
2011 83 7.3 19 20 1.0 2.6 4.4 10 8.3 33.5 68.0
2012 90 7.3 20 18 22 1.6 2.9 4.5 6 7.0 11.3 18.0
2013 8.0 22 91 7.3 20 28 19 1.6 2.1 3.4 9 5.8 15.1 24.0
2014 7.0 23 83 8.1 26 20 1.7 1.7 1.7 1 22.0 22.0 22.0
2015 17 140 1.8 2.7 4.4 9 6.3 6.3 6.3
2016 6.0 25 85 6.4 17 24 25 1.9 3.1 4.0 10 1.1 4.0 9.8
2017 3.0 5.5 8.0 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
7.1 18 78 6.7 18 32 23 1 3.7 8.1 6.7 1.1 12 68

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2015-09-22
2016-08-10
2016-08-24
2016-08-31
2016-09-07
2016-09-22
2017-08-11
2017-08-22
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 21.3 7.2 24 8.4 23 8.6 23 8.7 22 8.7 21 8.8 23.3 8.6 23.0 9.0
1 21.3 7.4 24 8.3 23 9.3 23 8.7 22 8.7 21 9.0 23.3 8.8 23.0 9.0
2 21.3 7.6 24 8.4 23 9.3 23 8.7 22 8.7 21 8.9 23.2 8.8 22.9 8.9
3 21.3 7.7 24 8.4 23 9.3 23 8.7 22 8.7 21 9.1 23.1 8.8 22.6 8.8
4 21.3 7.7 24 8.4 23 9.3 23 8.6 22 8.6 21 8.7 23.0 8.7 22.3 8.7
5 21.3 7.7 24 8.3 23 9.3 23 8.4 22 8.6 21 9.0 23.0 8.6 22.2 8.4
6 21.3 7.7 23 6.5 23 9.2 23 8.4 22 8.3 20 7.7 22.7 8.0 22.1 8.0
7 21.3 7.6 20 2.5 23 8.6 23 8.3 22 7.8 20 7.5 21.6 6.2 21.4 6.3
8 20.0 3.7 17 1.1 19 1.0 22 4.6 21 5.6 20 6.9 18.7 3.2 19.1 2.3
9 18.2 0.8 14 0.6 15 0.4 19 0.6 18 0.4 19 3.6 15.0 1.7 16.0 0.5
10 14.9 0.3 13 0.6 14 0.4 16 0.5 15 0.3 16 0.3 12.3 1.4 12.4 0.7
11 12.7 0.2 12 0.7 13 0.4 14 0.5 14 0.3 14 0.3 10.4 2.0 10.8 1.0
12 11.7 0.2 12 0.8 12 0.4 13 0.5 12 0.4 13 0.3 10.3 2.2 10.3 1.0
13 10.6 0.2 11 0.8 12 0.4 12 0.4 12 0.3 12 0.2 9.7 1.9 9.7 0.8
14 10.4 0.1 11 0.9 11 0.4 12 0.4 11 0.3 11 0.3 9.2 2.0 9.6 0.9
15 10.0 0.1 11 0.8 11 0.4 12 0.4 11 0.3 11 0.3 8.9 1.5 9.3 0.9
16 9.5 0.1 11 0.7 11 0.4 11 0.3 11 0.3 8.9 1.5 9.2 0.9
17 9.3 0.1 11 0.7 11 0.3 11 0.4 11 0.3 11 0.3 8.8 1.4 9.0 0.7
18 9.3 0.1 11 0.6 11 0.3 11 0.3 11 0.2 8.7 1.3 8.9 0.8
19 9.2 0.1 10 0.5 11 0.3 11 0.4 10 0.3 10 0.2 8.7 1.1 8.8 0.7
20 9.1 0.1 10 0.4 11 0.3 10 0.3 10 0.2 8.6 1.0 8.8 0.9
21 9.0 0.1 10 0.4 10 0.3 11 0.4 10 0.3 10 0.2 8.6 0.8 8.7 0.7
22 10 0.4 10 0.3 10 0.3 10 0.2 8.6 0.6 8.7 0.5
23 10 0.6 10 0.3 11 0.4 10 0.3 10 0.2 8.5 0.5 8.7 0.4
24 10 0.3 10 0.3 10 0.3 10 0.2 8.5 0.4 8.6 0.4
25 10 0.3 10 0.3 11 0.4 10 0.3 10 0.2 8.5 0.4 8.6 0.3
26 10 0.3 10 0.3 10 0.3 10 0.2 8.6 0.2

Recent temperature and dissolved oxygen profile plots

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