Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
DENMARK OXFORD 4 1 0.96 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(28 ft) 		4 m
(13 ft) 		51 ha
(126 ac) 		1,998,206 m3
(1,620 ac-ft) 		3 km2
(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
1982 5.4 5.5 5.7 5
1993 7.0 6.9 14.7 5.0 6.8 8.2 5 2.2 2.2 2.2
1994 7.0 5.5 6.5 7.5 5
1995 7.0 6.8 11.7 10.0 6.7 7.3 8.3 5 2
1996 7.2 6.9 5.3 6.0 7.5 6
1997 7.2 6.4 7.3 8.0 8 2 2.5 2.5 2.5
1998 6.3 6.4 8.0 8.0 5.2 6.4 8.3 5 2 3.2 3.2 3.2
1999 5.4 6.7 6.5 7.5 4.9 6.7 8.0 6 3 2.1 2.6 3.0
2000 10.3 5.2 37 6.5 9.6 5.3 6.8 8.2 6 1 2.4 2.9 3.7
2001 11.1 6.6 32 6.7 7.1 5.8 6.9 8.2 9 1 1.7 2.5 3.5
2002 7.9 6.6 34 6.8 7.3 4.7 7.3 8.7 8 3 2.5 3.4 4.8
2003 10.6 6.1 25 6.6 8.0 5.0 7.0 8.4 5 2 1.6 3.5 6.1
2004 18.9 5.7 26 6.6 7.2 3.8 5.9 6.9 5 2.1 3.7 6.8
2005 13.8 6.6 26 6.7 6.9 15 5.6 7.0 8.0 6 1 1.8 3.1 4.6
2006 8.4 6.0 20 6.6 9.8 5.8 6.9 8.2 5 2 1.7 2.8 5.2
2007 10.7 5.9 20 6.7 8.3 2.2 5.0 8.4 7 1.8 4.8 11.0
2008 7.2 6.5 17 6.6 7.6 12 10.2 3.4 5.6 8.3 7 4 1.1 3.8 7.8
2009 8.1 7.2 18 6.7 9.1 6.6 7.4 8.6 7 5 1.7 2.4 3.3
2010 6.9 9.0 19 6.8 7.5 7 5.8 6.3 7.5 7 1.4 2.7 4.4
2011 10.0 7.4 17 6.6 9.0 5.4 6.7 7.6 6 2.2 3.6 7.6
2012 12.1 6.2 17 6.6 6.8 13 5.9 6.8 7.8 6 2.0 3.8 7.3
2013 11.7 5.4 18 6.7 7.2 16 6.2 6.9 7.6 7 2.0 4.7 8.3
2014 19.3 5.4 20 6.7 6.8 5.5 6.9 7.8 5 2 1.7 3.2 5.1
2015 19.4 6.5 21 6.8 7.4 12 6.3 7.4 8.7 5 2 1.0 3.3 5.8
2016 20.9 6.3 23 6.8 6.7 6.2 7.2 8.5 5 3 0.7 2.7 4.9
2017 20.0 6.2 22 6.8 8.2 10 5.3 6.4 7.9 8 2.3 3.9 5.8

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
13 6.4 23 6.7 7.9 12 9.6 2.2 6.7 8.7 6.1 0.7 3.2 11

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2015-08-26
2015-09-08
2016-08-02
2016-08-18
2016-09-07
2017-08-02
2017-08-18
2017-09-07
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26 7.8 27 8.3 26 8.1 26 8.1 24 8.3 26 8.4 24 8.2 20 8.6
1 26 7.8 26 8.3 26 8.1 25 8.1 24 8.3 26 8.5 24 8.2 20 8.5
2 25 7.8 26 8.3 26 8.1 25 8.1 24 8.3 25 8.3 24 8.2 20 8.5
3 25 7.8 26 8.3 26 8.0 25 8.1 23 8.3 25 8.6 24 8.2 20 8.4
4 25 7.7 25 8.3 26 8.0 25 8.1 23 8.2 24 8.5 24 8.2 20 8.4
5 25 7.6 25 8.2 26 7.6 25 8.0 23 8.0 22 7.9 23 7.9 20 8.2
6 24 7.2 24 7.6 24 4.8 25 7.8 23 7.9 17 7.4 19 5.8 19 7.8
7 20 5.3 21 6.0 21 3.7 23 6.6 23 6.9 14 1.9 14 0.9 16 1.3
8 17 0.3 17 0.3 19 0.8 20 0.6 21 0.6 12 0.7 13 0.3

Recent temperature and dissolved oxygen profile plots

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