Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
AUBURN ANDROSCOGGIN 11 1 0.23 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
36 m
(118 ft)
12 m
(40 ft)
897 ha
(2,216 ac)
109,803,124 m3
(89,019 ac-ft)
20 km2
(7.6 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
1977 9.0 4.4 5.6 7.6 7
1978 6.1 6.1 6.1 1
1979 3.7 5.3 7.1 2
1980 11 53 7.0 18 6.1 6.1 6.1 1 3.6 3.6 3.6
1981 5.6 7.0 8.5 3
1982 6.1 7.8 9.6 5
1983 13 8.0 7.3 7.9 8.5 5 1.7 1.8 1.8
1984 5.5 7.2 8.5 5
1985 6.5 8.3 10.0 5
1986 17 45 9.0 16 7.0 8.5 11.0 5
1987 6.3 7.8 9.0 6
1988 6.3 8.5 10.6 5
1989 5.3 7.7 10.3 5
1990 7.0 8.1 9.3 5
1991 12 56 7.2 12.0 6.0 8.5 11.0 5
1992 7.5 9.6 11.3 5
1993 3.5 5.8 7.5 5
1994 5.0 7.0 8.0 5
1995 6.9 7.8 8.8 5
1996 5.3 8.4 10.9 5
1997 11 68 7.4 8.0 4.9 6.6 8.8 5 2.0 2.0 2.0
1998 6.4 7.8 9.3 5
1999 5.4 7.3 9.1 7
2000 5.0 7.7 10.2 3
2001 4.5 7.1 10.5 7
2002 5.5 7.6 9.8 7
2003 5.6 7.7 9.6 6
2004 3 14 74 7.5 4.0 5.5 7.1 8.9 7 3.7 3.7 3.7
2005 5.5 7.1 9.4 8
2006 9.0 5.8 7.2 8.4 8 3.5 3.5 3.5
2007 6.0 4.9 7.4 11.5 7 2.3 3.1 4.0
2008 6 11 68 7.2 7.5 3.7 7.0 9.8 9 1.3 1.4 1.4
2009 10.0 6.0 6.8 8.3 9 2.6 3.9 5.7
2010 7.0 5.4 7.2 10.1 9 4.3 4.3 4.4
2011 13.0 1.9 5.1 8.4 9 3.1 3.2 3.4
2012 19.0 29 2.9 5.3 7.2 6 13.0 13.0 13.0
2013 7 13 73 5.9 13.7 36 20 3.7 5.7 8.6 11 2.5 7.7 17.0
2015 7.5 4 8.7 9.1 9.6 2 2.1 7.5 13.0
2016 16.0 7.9 8.5 9.0 2 1.1 1.1 1.1
2017 7.3 7.3 7.3 1

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
5.3 13 62 6.6 10 7.8 19 25 1.9 7.3 12 5.5 1.1 4.3 17

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2013-09-18
2013-09-20
2013-09-25
2013-09-27
2013-09-30
2015-08-06
2015-08-27
2016-08-02
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 19.4 8.6 19.6 9.0 17.5 8.7 17.2 9.1 18.6 9.9 24.1 8.6 23.7 8.1 25 8.7
1 19.4 8.6 19.4 9.2 17.5 8.7 17.2 9.1 17.6 10.0 24.2 8.6 23.7 8.1 25 8.7
2 19.4 8.6 19.3 9.2 17.6 8.7 17.2 9.1 17.4 10.0 24.2 8.6 23.8 8.1 25 8.7
3 19.4 8.6 19.2 9.0 17.6 8.6 17.2 9.0 17.3 9.8 24.2 8.6 23.8 8.2 25 8.7
4 19.4 8.6 19.1 8.8 17.6 8.6 17.2 9.0 17.3 9.6 24.2 8.6 23.8 8.2 25 8.7
5 19.4 8.6 19.0 8.7 17.6 8.6 17.2 9.0 17.3 9.5 24.2 8.6 23.8 8.2 25 8.7
6 19.4 8.6 19.0 8.4 17.5 8.6 17.2 9.0 17.2 9.3 24.2 8.6 23.8 8.2 25 8.7
7 19.4 8.6 18.9 8.3 17.5 8.6 17.2 9.0 17.2 8.4 23.6 8.6 23.8 8.2 24 8.7
8 19.4 8.6 18.9 7.8 17.5 8.6 17.2 9.0 17.2 8.6 19.0 9.6 22.3 7.8 21 8.6
9 18.5 7.2 18.6 7.2 17.5 8.6 17.2 9.0 17.1 8.4 17.1 9.6 18.8 7.8 19 8.9
10 14.3 0.7 15.9 1.4 17.5 8.6 17.2 9.0 16.5 6.6 13.6 8.3 15.5 6.7 17 8.4
11 12.9 0.7 12.6 0.6 16.0 5.4 17.2 9.0 15.4 3.6 12.3 7.5 14.0 6.0 15 7.4
12 11.8 1.2 11.4 1.4 12.1 0.9 11.8 1.0 12.4 0.7 11.3 7.3 12.2 5.7 14 7.3
13 11.0 1.8 10.8 1.7 11.2 1.2 10.9 1.5 10.8 1.4 10.4 7.3 11.1 5.7 14 7.2
14 10.3 2.3 10.2 2.5 10.7 1.6 10.3 1.9 10.2 1.9 9.8 7.3 10.1 5.5 13 6.9
15 9.7 2.9 9.6 3.0 10.3 1.8 10.0 2.2 9.6 2.0 8.4 7.1 9.5 5.7 12 6.8
16 9.5 3.0 9.2 3.2 9.7 2.3 9.6 2.4 9.3 2.4
17 9.3 3.1 9.0 3.2 9.4 2.5 9.4 2.5 9.1 2.5 8.0 7.1 8.7 5.8 11 6.6
18 9.1 3.2 9.0 3.2 9.2 2.7 9.2 2.5 9.0 2.5
19 9.0 3.2 8.8 3.2 9.1 2.8 9.0 2.8 8.9 2.5 7.8 7.2 8.3 5.8 11 6.5
20 8.9 3.7 8.7 3.2 8.9 2.9 8.9 2.8 8.8 2.4 8.2 5.8
21 8.8 3.2 8.6 3.0 8.8 2.9 8.8 2.7 8.7 2.4 7.7 7.2 8.1 5.8 11 6.4
22 8.7 3.2 8.6 3.0 8.8 2.9 8.8 2.7 8.7 2.4 8.0 5.8
23 8.6 3.3 8.5 3.0 8.7 2.9 8.7 2.6 8.6 2.4 7.6 7.1 7.9 5.8 10 6.4
24 8.6 3.3 8.5 3.0 8.7 2.7 8.6 2.6 8.6 2.1 7.9 5.8
25 8.6 3.3 8.4 2.8 8.6 2.6 8.6 2.6 8.6 2.0 7.5 7.0 7.8 5.8 10 6.2
26 8.5 3.2 8.5 2.8 8.6 2.6 8.6 2.5 8.5 2.0 7.8 5.7
27 8.5 3.1 8.5 2.7 8.6 2.6 8.6 2.4 8.5 1.9
28 8.5 3.0 8.5 2.6 8.6 2.6 8.5 2.3 8.5 1.8
29 8.5 3.0 8.5 2.6 8.6 2.5 8.5 2.2 8.5 1.7
30 8.5 2.9 8.4 2.2 8.5 2.4 8.5 2.1 8.5 1.6 7.4 6.5 7.7 5.5 10 6.1
31
32
33
34
35 8.5 2.8 8.6 1.6 8.5 2.4 8.5 2.1 7.4 6.4 10 5.4

Recent temperature and dissolved oxygen profile plots

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