Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
SIDNEY KENNEBEC 12 1 0.27 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
19 m
(62 ft) 		5 m
(17 ft) 		12 ha
(30 ac) 		610,971 m3
(495 ac-ft) 		0 km2
(0.1 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
1979 12.1 54 14 4.5 5.4 6.7 9 1.2 3.7 5.8
1980 8.2 41 10.5 15 4.0 5.7 7.5 6 2.5 4.4 5.9
1981 8.3 4.0 5.6 7.0 5 2.9 4.8 6.6
1982 5.5 6.2 8.0 5
1983 5.5 6.5 8.5 6
1984 10.0 14.0 18 4.0 6.0 7.0 5 8.0 8.0 8.0
1985 5.5 7.3 8.5 5
1986 4.5 6.4 8.0 5
1987 8.0 30 8.0 39 4.5 6.8 8.5 6
1988 5.0 6.4 8.0 6
1989 5.5 7.0 10.0 5
1990 5.5 6.8 8.5 6
1991 4.0 5.0 6.5 8.2 5
1992 6.5 7.5 9.5 5
1993 6.0 7.5 8.8 5
1994 5.7 7.3 9.7 5
1995 5.0 6.8 8.3 5
1996 6.2 7.7 9.1 5
1997 10.0 43 7.3 4.0 22 6.5 7.7 10.5 6 1.7 1.7 1.7
1998 5.9 7.9 9.2 5
1999 6.2 8.0 9.4 6
2000 6.9 8.1 9.0 5
2001 7.5 8.6 9.8 5
2002 12.0 12.0 48 8.0 72 7.4 9.4 10.9 6 1.7 1.7 1.7
2003 7.8 9.1 12.6 5
2004 6.3 8.6 11.3 6 1
2005 7.2 9.2 12.9 4
2006 2.7 10.9 56 7.3 5.7 22 6.3 7.8 9.5 6 1 1.4 2.3 3.9
2007 7.2 10.0 11.9 5
2008 7.4 8.6 10.9 5
2009 7.6 10.3 12.5 4
2010 7.1 8.4 11.1 7 1
2011 4.0 10.8 61 7.4 4 6.6 8.6 10.1 5
2012 5.4 8.0 12.6 5
2013 6.3 8.5 10.2 5
2014 5.8 8.7 10.3 5
2015 7.0 8.6 11.3 7
2016 3.5 12.0 59 7.3 5.0 24 7.1 9.9 11.5 6 2.3 2.7 3.1
2017 4.2 7.3 9.3 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
5.5 10 49 7.3 7.5 4 33 14 4 7.7 13 5.5 1.2 3.7 8

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1980-08-21
1980-09-30
1984-08-13
1987-08-12
1997-08-20
2002-08-19
2006-09-06
2016-09-07
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22.0 8.9 13.0 9.4 24.9 8.3 23.3 8.7 24.9 8.5 27.4 7.8 22.4 8.6 23.7 8.6
1 22.0 8.6 8.0 2.1 24.9 8.2 23.3 8.7 24.2 8.4 27.1 7.8 21.8 8.7 23.7 8.6
2 22.0 8.7 13.5 9.6 24.6 8.2 23.0 8.8 23.9 8.4 26.9 7.8 21.6 8.9 23.7 8.6
3 22.0 8.7 24.9 8.0 23.0 8.8 23.9 8.4 26.8 7.7 21.3 8.9 23.7 8.6
4 22.0 8.7 13.5 9.6 24.8 7.9 23.0 8.8 23.8 8.4 26.7 7.7 21.1 8.9 23.7 8.5
5 22.0 8.6 21.8 9.4 23.0 8.8 23.7 8.4 26.0 8.0 21.0 8.8 23.7 8.4
6 22.0 8.7 13.5 9.6 17.4 10.8 23.0 8.8 23.4 8.4 25.1 7.6 20.9 8.8 23.6 8.4
7 16.5 10.2 13.6 9.8 20.5 12.4 19.2 12.0 22.2 7.4 19.5 11.8 23.5 8.3
8 13.5 4.4 13.5 8.7 11.3 8.6 16.5 11.8 17.0 11.6 18.4 8.4 16.0 10.9 19.8 8.3
9 10.2 5.3 9.9 5.5 13.1 11.0 13.8 12.1 15.1 7.5 13.9 11.9 16.5 7.4
10 9.0 3.9 8.2 3.4 11.0 8.5 11.2 10.6 12.4 6.3 11.8 9.5 13.8 8.6
11 7.0 1.6 7.0 2.8 9.1 3.5 9.8 5.7 10.2 4.4 10.0 2.5 12.2 7.2
12 6.5 0.5 5.5 1.9 6.2 1.2 8.0 0.6 8.2 1.1 9.0 1.7 9.0 0.9 10.5 3.7
13 6.0 0.4 6.0 1.0 7.5 0.3 7.3 0.4 7.9 1.1 8.0 0.6 9.5 0.9
14 5.0 0.1 5.5 1.8 5.6 0.9 6.5 0.2 6.9 0.2 7.2 0.3 7.5 0.5 8.4 0.7
15 5.5 0.6 6.1 0.2 6.3 0.1 6.7 0.2 7.0 0.5 7.8 0.6
16 4.0 0.7 6.0 0.2 6.0 0.1 6.4 0.2 6.6 0.5
17 6.0 0.2 6.0 0.1 6.2 0.1 6.4 0.5 7.1 0.5
18 4.0 0.6 6.0 0.2 6.2 0.1 6.2 0.5
19 6.1 0.1 6.1 0.5 6.8 0.5
20 5.7 0.1

Recent temperature and dissolved oxygen profile plots

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