Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
SABATTUS ANDROSCOGGIN 12 1 0.5 flushes/yr 350 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
6 m
(19 ft) 		4 m
(12 ft) 		24 ha
(59 ac) 		901,357 m3
(731 ac-ft) 		1 km2
(0.3 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
1986 3.7 4.8 5.8 4 3
1990 4.2 5.2 6.0 6 2
1991 10.0 36 9 4.0 5.0 5.6 6
1992 3.4 4.5 5.4 6
1993 3.4 4.0 4.9 6
1994 3.4 4.2 5.0 6
1995 4.1 4.7 5.5 6
1996 3.7 4.6 5.2 6
1997 10.0 40 7.3 10 3.5 4.6 5.6 7 7.1 7.1 7.1
1998 4.0 4.9 5.2 5
1999 4.8 5.3 5.5 6 8
2000 3.8 4.6 5.2 6
2001 3.9 4.6 5.6 6 1
2002 5 13.0 43 6 4.0 4.7 5.5 7 2.4 2.4 2.4
2003 4.2 5.2 5.7 5 2
2004 4.5 5.0 5.4 7 2
2005 4.9 5.3 5.5 6 5
2006 4.3 5.1 5.6 5 4
2007 7 8.3 35 7.2 8 4.1 4.9 5.6 6 2
2008 4.2 5.0 5.9 6 2
2009 3.9 4.7 5.5 7 2
2010 4.6 5.1 5.5 8 4
2011 4.8 5.2 5.5 6 2
2012 4.1 4.9 5.7 7 2
2013 3.8 4.7 5.4 7
2014 9 9.0 35 7.1 9 4.3 4.9 5.2 6 5.8 5.8 5.8
2015 4.6 5.2 5.5 6
2016 5.0 5.3 5.5 6 4
2017 4.8 5.4 5.7 8 5
2018 5.2 5.4 5.8 3 7

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 10 38 7.2 8.5 8 3.4 4.9 6 6.1 2.4 5.1 7.1

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1991-08-27
1997-08-21
2002-08-14
2014-09-02
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 23 8.6 23 7.6 26 8.1 24 8.2
1 23 8.6 23 7.5 26 8.1 24 8.2
2 22 8.6 23 7.5 26 7.9 24 8.2
3 22 8.6 23 7.5 25 8.0 23 8.3
4 22 8.5 23 7.5 25 7.9 23 8.0
5 22 8.1 23 7.5 23 2.3 23 6.7

Most recent temperature and dissolved oxygen profile plots

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