Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
BREMEN LINCOLN 7 1 0.4 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
12 m
(41 ft) 		5 m
(17 ft) 		83 ha
(205 ac) 		4,222,455 m3
(3,423 ac-ft) 		2 km2
(0.7 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
1975 6.7 6.7 6.7 1
1984 5.5 5.8 6.0 3
1985 3.7 8 40 7.3 7.3 7.3 1
1988 4.2 5.5 6.8 6
1989 4.8 5.8 7.3 6
1990 5.0 6.1 7.2 7
1991 3.3 5.4 6.3 6
1992 5.0 6.1 7.6 6
1993 5.0 5.7 6.5 6
1994 5.2 6.3 7.2 5
1995 5.3 6.7 7.8 6
1996 5.4 6.4 7.8 4
1997 5.7 6.5 7.5 5
1998 4.0 38 7 14 4.5 5.6 6.4 8 2.9 2.9 2.9
1999 5.3 6.7 7.6 6
2000 5.4 6.5 7.2 6
2001 4.2 4.4 6.0 5
2002 6.2 7.3 7.8 6
2003 10 6.5 46 4 3 4.8 5.7 7.7 6 2.0 2.0 2.0
2004 5.1 5.6 5.8 6
2005 4.0 4.5 6.0 5
2006 4.0 5.0 6.4 6
2007 14 3.2 38 6.7 8 9 5.9 6.3 7.4 5 3.0 3.0 3.0
2008 5.1 6.0 6.3 6
2009 4.5 7.0 6 12 5.0 6.1 7.8 5 3.5 3.5 3.5
2010 5.0 5.5 5.9 5
2011 5.3 5.9 6.5 5
2012 5.6 6.0 6.6 5
2013 12 3.7 52 6.8 6 17 5.6 6.5 7.1 3 2.5 2.5 2.5
2014 5.4 6.5 7.3 3
2015 5 3.5 52 6.7 9 13 4.0 6.5 8.4 5 2 1.9 2.2 2.5
2016 5.6 6.3 8.8 3
2017 6.7 6.8 6.9 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
10 4.2 45 6.8 6.9 15 3.3 6.1 8.8 4.9 1.9 2.7 3.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2007-08-16
2009-08-27
2010-08-28
2013-08-19
2015-08-19
2015-09-09
2015-09-12
2017-08-10
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24.0 8.3 25 7.9 23 8.1 24 8.2 27.3 8.1 25.4 8.1 24 7.4 24 7.8
1 23.9 8.4 25 7.9 22 8.1 24 8.3 27.3 8.1 25.1 8.1 23 7.5 24 7.8
2 23.8 8.3 25 7.9 22 8.1 23 8.2 27.3 8.1 25.0 8.1 23 7.3 24 7.7
3 23.8 8.2 25 7.8 22 7.9 23 8.2 27.3 8.1 24.5 8.0 23 7.2 24 7.8
4 23.4 8.1 24 7.2 22 7.7 22 7.7 24.6 8.2 24.3 8.0 23 7.0 23 7.4
5 22.9 7.9 21 2.5 22 7.5 22 7.2 23.6 7.6 23.8 7.3 23 7.2
6 18.7 3.5 18 0.1 22 7.1 19 2.5 20.8 3.3 22.3 4.4 18 1.6
7 14.0 1.8 16 0.0 18 2.0 15 1.2 15.3 0.7 17.1 1.2 15 1.2
8 12.1 1.2 13 0.0 14 1.9 13 0.4 12.6 0.2 13.6 0.7 12 0.5
9 10.4 1.1 12 0.0 13 1.8 12 0.3 10.7 0.1 11.8 0.4
10 9.4 1.1 11 0.0 11 1.7 11 0.3 9.8 0.0 10.1 0.3
11 9.1 1.0 10 0.0 10 1.6 10 0.3 9.5 0.0 9.5 0.2
12 9.0 0.9 10 0.0 10 1.5 9.3 0.0

Recent temperature and dissolved oxygen profile plots

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