Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
DENMARK OXFORD 4 1 7.92 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
2 m
(8 ft) 		1 m
(4 ft) 		32 ha
(79 ac) 		424,674 m3
(344 ac-ft) 		5 km2
(2 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
1997 25 8.5 2.1 2.8 3.9 4 8 3.2 4.3 5.4
1998 7.0 6.4 10.0 2.5 2.5 2.5 1 1
1999 6.0 6.8 9 2.5 2.5 2.5 1 2.4 2.4 2.4
2000 20 6.5 32 6.8 9.0 2.3 2.4 2.4 2 2 2.4 2.4 2.4
2001 5 10.0 30 7.3 66 3.1 3.1 3.1 1 1 1.7 1.7 1.7
2002 1 8.0 27 7.3 11 3.5 3.5 3.5 1 1 2.2 2.2 2.2
2003 40 10.0 22 6.7 14 3.5 3.5 3.5 1 1 1.8 1.8 1.8
2004 5 4.5 20 6.9 13 2.5 2.5 2.5 1 1 2.0 2.0 2.0
2005 10 7.5 18 7.1 8 2.6 2.6 2.6 1 1 1.8 1.8 1.8
2006 17 6.0 18 6.9 19 2.2 2.2 2.2 1 1 1.8 1.8 1.8
2007 9 7.0 17 7.0 12 1.6 1.6 1.6 1 1 1.8 1.8 1.8
2008 12 8.0 15 12 2.6 2.6 2.6 1 1 7.7 7.7 7.7
2009 14 9.0 17 6.7 10 2.5 2.5 2.5 1 1 3.1 3.1 3.1
2010 17 11.0 24 7.1 15 2.1 2.1 2.1 1 1 3.1 3.1 3.1
2011 10 10.9 16 6.7 14 2.4 2.4 2.4 1 1 4.6 4.6 4.6
2012 10 7.0 16 6.8 16 2.6 2.6 2.6 1 1 2.8 2.8 2.8
2013 17 8.0 22 6.7 12 2.4 2.4 2.4 1 1 2.7 2.7 2.7
2014 31 6.0 18 6.6 12 2.2 2.2 2.2 1 1 3.1 3.1 3.1
2015 30 10.0 19 6.5 10 2.5 2.5 2.5 1 1 3.0 3.0 3.0
2016 25 8.0 20 6.8 11.0 2.1 2.1 2.1 1 3.6 3.6 3.6
2017 28 7.5 19 6.8 8 2.3 2.3 2.3 1 1 2.3 2.3 2.3

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
17 7.9 21 6.8 16 9.6 1.6 2.5 3.9 1.2 1.7 2.9 7.7

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2010-08-19
2011-08-16
2012-08-28
2013-08-20
2014-08-12
2015-08-25
2016-08-17
2017-08-16
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26 7.5 22 7.3 26 7.9 25 8.7 25 8.2 26 8.2 25 8.5 25 8.4
1 25 7.7 22 7.4 26 7.9 24 8.8 25 8.2 26 8.2 25 8.5 25 8.4
2 25 7.5 22 7.5 25 7.7 24 8.7 26 7.9 25 8.7 25 8.4

Recent temperature and dissolved oxygen profile plots

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