Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
OXFORD OXFORD 5 1 0.29 flushes/yr 323 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
37 m
(121 ft) 		12 m
(41 ft) 		1,709 ha
(4,224 ac) 		214,269,254 m3
(173,711 ac-ft) 		91 km2
(35 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 5 7.7 9.2 10.5 4
1978 7.0 40 5.8 8.5 8.5 8.5 1 1.3 1.3 1.3
1979 7.5 8.0 8.5 2
1980 9.0 9.0 9.0 1
1981 7.5 28 5.0 7 8.5 9.3 10.0 4 1.8 1.8 1.8
1982 7.5 8.7 9.5 5
1983 4.5 5.5 6.6 4
1984 5.0 5 9.0 9.0 9.0 1 1.7 1.7 1.7
1987 6.5 35 6.0 6 8.5 10.6 12.5 6
1988 5.5 4.2 9.2 10.0 11.7 6
1989 6.2 5.5 7.7 9.6 6
1990 6.6 4.4 7.7 9.9 11.2 6
1991 6.9 6.7 5.3 6.2 8.8 10.5 6
1992 7.0 6.9 5.2 5.8 8.1 9.9 6 1.9 2.2 2.5
1993 7.3 6.7 4.3 5 6.6 9.1 10.3 6 1.7 3.2 8.2
1994 8.0 6.4 11.4 8.3 9.3 10.3 5
1995 7.1 3.9 9.4 10.4 11.3 6
1996 7.1 7.2 4.5 5 7.3 8.2 9.8 6
1997 8.1 7.0 4.3 7.5 8.4 9.7 6 2.0 2.8 3.4
1998 8.4 37 6.9 6.0 5 6.2 8.7 11.3 8 1.5 2.1 2.9
1999 7.7 40 6.9 4.8 6.5 8.7 10.0 6 2.0 3.1 6.0
2000 8.2 6.7 5.0 7.3 9.6 11.6 7 1.0 1.7 3.0
2001 7.2 6.9 4.0 8.8 9.7 10.1 6 1.1 2.2 4.1
2002 6.5 7.0 6.6 8.6 10.0 11.1 6 1.4 2.2 3.5
2003 7.5 45 6.8 3.8 9.5 10.7 13.0 6 0.9 1.5 1.9
2004 7.2 6.7 4.2 8.2 9.3 10.4 5 2.0 2.2 2.4
2005 7.2 40 6.7 4.6 8.0 9.5 10.8 6 1.4 2.2 3.3
2006 7.7 7.1 4.6 8.1 9.2 11.0 7 1.4 1.7 1.9
2007 7.8 6.7 4.2 5.6 8.6 10.0 7 2.5 7.0 23.0
2008 6.0 6.8 3.6 7.4 10.0 12.6 7 1.2 2.2 3.4
2009 7.0 6.7 3.2 7.4 8.9 10.6 9 1.5 4.1 12.0
2010 10.2 7.0 4.2 6.5 9.1 10.6 9 1.6 2.1 2.9
2011 8.5 7.0 8.2 9.9 6 1.9 2.3 2.6
2012 10.0 7.1 43 7.1 4.2 5.3 8.2 9.6 8 2.0 2.6 3.4
2013 7.5 4.6 6.4 8.2 10.7 8 2.0 2.4 2.9
2014 8.0 44 4.0 7.0 8.9 11.2 8 1.2 2.6 3.3
2015 11.5 8.5 44 7.3 4.6 5 6.9 9.6 11.4 8 1.0 3.0 8.8
2016 9.8 48 7.2 4.1 10.2 10.8 11.2 5 0.9 1.3 1.6
2017 7.5 5.2 6.8 8.2 9.2 6 1.7 2.3 2.9
2018 7.2 8.5 59 7.3 5.7 7.9 10.4 12.1 8 1.0 1.6 3.0

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
9.6 7.4 42 6.8 5 5.4 5.8 4.5 9.1 13 5.8 0.9 2.4 23

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2015-08-12
2015-08-28
2015-09-10
2016-08-04
2016-08-27
2017-08-29
2018-08-17
2018-09-13
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23.0 8.3 24.1 8.2 25.4 8.4 25.9 8.5 24.7 8.7 22.1 8.9 25.6 8.1 22.6 8.8
1 23.1 8.3 24.1 8.3 25.4 8.3 25.8 8.5 24.7 8.7 22.0 8.9 25.5 8.1 22.4 8.8
2 23.2 8.3 24.1 8.3 25.4 8.3 25.5 8.5 24.5 8.7 22.0 8.9 25.3 8.2 22.3 8.8
3 23.2 8.2 24.1 8.3 25.4 8.3 25.2 8.5 24.3 8.7 22.0 8.9 25.2 8.2 22.3 8.8
4 23.2 8.2 24.1 8.3 25.4 8.3 25.1 8.5 24.1 8.7 22.0 8.9 25.2 8.2 22.2 8.8
5 23.2 8.2 24.1 8.3 25.2 8.3 25.1 8.5 23.8 8.7 22.0 8.9 25.2 8.2 22.2 8.7
6 23.2 8.2 24.0 8.3 24.5 8.3 25.0 8.5 23.5 8.7 21.9 8.9 25.1 8.2 22.0 8.7
7 22.5 8.2 24.0 8.3 24.0 8.2 24.5 8.6 23.0 8.7 21.9 8.9 23.7 8.3 21.9 8.7
8 20.4 8.3 22.0 8.2 21.9 8.3 18.0 9.9 21.9 8.6 17.0 10.0 21.6 8.8 21.8 8.7
9 16.0 8.6 18.4 8.4 19.0 8.1 16.6 10.0 19.0 8.7 13.5 10.3 17.9 9.6 21.2 8.7
10 13.8 8.8 13.9 9.1 14.3 8.3 15.1 10.1 15.6 9.1 12.0 9.8 13.4 10.4 14.9 10.3
11 12.5 8.9 11.7 9.1 12.7 8.4 13.4 10.0 13.8 9.2 10.8 9.5 11.0 10.3 13.0 9.9
12 11.3 9.0 10.9 8.9 11.1 8.1 11.8 9.8 13.0 8.9 10.4 9.2 9.9 10.0 11.3 9.8
13 10.9 9.1 10.3 9.0 10.6 8.1 11.1 9.6 12.1 8.9 10.2 8.9 9.4 9.8 10.3 9.5
14 10.4 8.9 9.9 9.1 10.2 8.0 10.8 9.5 11.5 8.6 10.0 8.8 9.2 9.6 9.8 9.1
15 9.8 8.9 9.5 9.0 9.9 7.9 10.4 9.3 11.2 8.8 9.7 8.6 9.0 9.5 9.5 9.2
16 10.2 9.4 9.2 9.2
17 9.4 9.1 9.0 8.8 9.4 7.9 10.1 9.3 10.7 8.6 9.4 8.6 8.7 9.3 9.1 9.0
18 10.0 9.3 9.0 9.0
19 8.9 8.9 8.8 8.8 9.1 7.8 10.0 9.2 10.3 8.4 9.1 8.7 8.4 9.3 8.8 8.8
20 9.9 9.3 8.8 8.8
21 8.5 8.7 8.6 8.7 8.9 7.8 9.8 9.3 10.0 8.3 8.9 8.6 8.1 8.9
22 9.7 9.3 8.5 8.4
23 8.3 8.7 8.4 8.3 8.5 7.4 9.6 9.2 9.8 7.9 8.7 8.2 7.9 8.7
24 9.4 9.1 8.3 8.0
25 7.9 8.4 8.3 8.6 8.4 7.4 9.3 8.8 9.6 7.9 8.6 7.9 7.8 8.6
26 9.3 8.8 8.0 7.8
27 7.8 8.3 8.2 8.3 9.2 8.6 9.6 7.8 8.4 7.8 7.7 8.6
28 9.0 8.6 7.8 7.6
29 8.1 8.1 9.0 8.6 9.5 7.7 8.3 7.5
30 8.0 8.0 8.1 6.9 9.5 7.7 8.3 7.3 7.6 8.2 7.8 7.2
31
32
33
34
35 7.9 6.5

Most recent temperature and dissolved oxygen profile plots

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