Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
AUBURN ANDROSCOGGIN 11 1 0.23 flushes/yr 260 ft
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
2018 5 14 81 7.6 10.8 27 2.9 6.8 10.6 8 2.0 5.0 8.0

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
5.2 13 65 6.6 10 7.8 20 25 1.9 7.3 12 5.5 1.1 4.3 17

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2018-08-22
2018-08-24
2018-08-27
2018-08-29
2018-09-05
2018-09-10
2018-09-13
2018-09-14
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24.1 8.9 23.7 8.7 24.3 9.1 26.4 9.4 25.2 9.3 22.4 8.7 22.0 8.9 22 8.8
1 24.2 8.9 23.7 8.7 24.2 9.2 26.3 9.4 25.1 9.3 22.5 8.7 22.0 8.8 22 8.8
2 24.2 8.9 23.7 8.7 24.0 9.2 26.2 9.4 25.0 9.4 22.5 8.7 21.9 8.9 22 8.7
3 24.2 8.9 23.7 8.7 23.8 9.2 25.1 9.7 24.9 9.3 22.5 8.6 21.8 8.6 22 9.0
4 24.2 8.9 23.7 8.7 23.6 9.2 24.5 9.7 24.8 9.3 22.5 8.6 21.8 8.6 22 9.0
5 24.2 8.9 23.7 8.7 23.6 9.1 24.1 9.6 24.6 9.2 22.5 8.6 21.8 8.5 22 8.6
6 24.2 8.9 23.7 8.7 23.3 9.1 23.9 9.1 24.3 9.1 22.5 8.6 21.8 8.4 22 8.4
7 24.2 8.8 23.7 8.7 23.1 8.5 23.7 8.8 22.2 7.0 22.5 8.6 21.7 8.4 22 8.3
8 20.4 8.9 21.1 8.7 22.9 8.3 22.5 7.8 20.2 6.2 22.3 8.4 21.7 8.2 22 8.1
9 15.3 7.4 15.5 8.2 16.3 7.2 16.0 6.7 15.9 5.9 18.7 8.3 16.6 4.7 16 4.8
10 13.1 6.8 13.9 7.3 13.3 6.5 13.6 6.4 11.9 5.7 15.0 4.8 13.2 4.4 13 4.7
11 11.8 7.2 11.5 6.9 11.5 6.3 11.9 6.4 10.7 5.7 11.1 5.4 11.5 4.8
12 10.6 6.8 10.3 6.5 10.5 6.3 11.1 6.2 10.1 5.7 10.0 5.4 10.1 5.2
13 9.4 6.6 9.7 6.6 9.7 6.2 10.6 6.2 9.5 5.6 9.6 5.3 9.4 5.2
14 8.9 6.5 9.3 6.4 8.9 6.2 10.1 6.1 8.7 5.6 9.2 5.3 8.9 5.3
15 8.3 6.4 8.4 6.4 8.6 6.1 9.3 6.1 8.5 5.7 8.6 5.5 8.6 5.3
16 8.1 6.4 8.2 6.3 8.4 6.2 6.1 8.2 5.7 8.2 5.5 8.3 5.3
17 8.1 6.4 8.1 6.3 8.1 6.2 8.5 6.1 8.1 5.8 8.1 5.7 8.2 5.3
18 8.0 6.4 7.9 6.2 8.0 6.2 6.0 7.9 5.8 8.0 5.5 8.0 5.4
19 7.9 6.3 7.9 6.1 7.9 6.1 8.0 6.0 7.8 5.7 7.8 5.4 7.9 5.4
20 7.8 6.3 7.8 6.1 7.8 6.1 6.0 7.8 5.6 7.8 5.4 7.8 5.4
21 7.8 6.3 7.7 6.1 7.7 6.1 7.9 5.9 7.7 5.5 7.7 5.3 7.8 5.3
22 7.7 6.1 7.6 6.1 7.7 5.9 5.9 7.7 5.5 7.7 5.3 7.7 5.3
23 7.6 6.0 7.6 6.0 7.6 5.8 7.7 5.7 7.7 5.5 7.7 5.2 7.7 5.2
24 7.6 6.2 7.6 6.0 7.6 5.8 5.5 7.7 5.5 7.7 5.1 7.7 5.1
25 7.5 6.2 7.5 5.9 7.6 5.8 7.7 5.5 7.6 5.4 7.6 5.1 7.7 5.0
26 7.5 6.1 7.5 5.9 7.6 5.8 5.6 7.6 5.4 7.6 5.1 7.7 5.0
27 7.5 6.0 7.5 5.8 7.5 5.7 5.5 7.6 5.3 7.6 5.0 7.6 4.9
28 7.5 5.9 7.5 5.8 7.5 5.7 5.5 7.6 5.3 7.6 5.0 7.6 4.9
29 7.5 5.9 7.5 5.8 7.5 5.6 5.5 7.6 5.2 7.6 5.0 7.6 4.8
30 7.5 5.6 7.5 5.7 7.5 5.6 7.6 5.2 7.6 5.0 7.6 4.9 7.6 4.7
31
32
33
34
35 7.5 5.4 7.5 5.6 7.5 5.5 7.5 4.3 7.5 4.4 7.6 4.6 7.6 4.6

Most recent temperature and dissolved oxygen profile plots

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