Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
BYRON OXFORD 18 1 3.86 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
13 m
(43 ft) 		3 m
(9 ft) 		371 ha
(916 ac) 		10,374,353 m3
(8,411 ac-ft) 		68 km2
(26 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
1981 4.2 4.2 4.2
1982 4.0 29 10.0 3.5 3.5 3.5 1 3.2 3.2 3.2
1990 12.0 19 6.1 13.0 2.5 3.6 4.5 6 6.3 6.3 6.3
1991 7.0 18 6.4 10.0 11 3.0 3.5 4.3 6 5.7 5.7 5.7
1992 6.3 6.3 12.0 27 3.0 3.7 4.3 6 3.8 3.8 3.8
1993 5.2 6.8 14.0 14 3.1 3.8 4.9 6 3.9 4.7 5.5
1994 5.5 6.4 13.0 15 2.9 3.7 4.6 5
1995 5.0 9.0 15 2.8 4.3 6.3 8
1996 4.8 6.7 10.5 15 3.5 4.6 5.8 5
1997 5.2 7.0 11.0 12 3.9 5.0 6.2 6 3.0 4.1 5.2
1998 6.5 6.9 11.0 12 3.5 4.5 5.2 5 2.5 2.5 2.5
1999 3.1 4.5 5.5 6
2000 6.2 6.7 14.0 3.0 4.0 4.6 5 3.9 4.0 4.1
2001 4.5 7.1 10.0 12 4.0 4.6 5.0 5 3.2 3.2 3.2
2002 6.7 12.0 13 3.1 3.9 4.4 4 5.2 5.2 5.2
2003 5.5 6.3 10.5 12 3.7 4.4 4.9 5 2.8 3.1 3.4
2004 5.0 6.6 11.0 12 3.8 4.1 4.2 4 3.2 3.9 4.6
2005 5.0 13 6.7 12.0 14 3.6 4.3 5.0 2 3.8 4.3 4.9
2006 5.5 6.7 12.5 16 3.8 4.1 4.3 2 4.0 5.4 6.8
2007 5.0 6.6 13.0 3.5 4.1 4.7 2 3.9 4.0 4.0
2008 4.0 6.7 12.0 12 2.8 3.8 4.6 4 3.9 4.5 5.2
2009 5.0 6.8 14.0 16 3.2 3.9 4.5 5 3.5 4.2 4.8
2010 4.5 11.5 13 3.4 4.2 5.2 6 3.2 3.8 4.4
2011 7.0 14.0 3.2 3.5 4.0 3 4.1 4.1 4.1
2012 30 3.6 21 6.7 12.5 18 3.8 4.0 4.2 2 3.4 3.6 3.9
2013 4.0 10.7 17 2.7 3.8 4.5 7 4.5 4.5 4.5
2014 5.5 22 9.0 16 3.3 3.8 4.5 8 2.7 3.0 3.3
2015 4.5 20 8.5 16 3.5 4.0 4.7 9 5.9 6.0 6.0
2016 5.0 27 6.7 10.0 16 3.4 4.0 5.2 6 2.7 2.8 3.0
2017 3.5 34 6.9 11.5 6.5 17 2.9 4.0 4.6 10 3.3 4.4 5.6

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
30 5.4 23 6.6 12 6.5 15 2.5 4 6.3 5.1 2.5 4.2 6.8

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2016-09-26
2017-08-07
2017-08-16
2017-08-19
2017-08-26
2017-09-08
2017-09-17
2017-09-25
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 17 8.8 22 7.4 23 8.4 22 7.8 22 7.8 18 8.9 22 8.7 22 8.5
1 17 8.8 22 7.5 23 8.4 22 7.8 22 7.8 18 8.8 22 8.7 22 8.5
2 16 8.8 22 7.5 23 8.4 21 7.8 21 7.8 18 8.7 20 8.9 22 8.5
3 16 8.8 22 7.4 23 8.4 21 7.7 21 7.8 18 8.6 19 8.7 21 8.1
4 16 8.7 22 7.4 23 8.4 21 7.7 21 7.8 18 8.5 19 8.3 20 6.7
5 16 8.7 22 7.4 23 8.4 21 7.6 21 7.8 18 8.4 18 8.0 19 6.2
6 16 8.7 22 7.4 23 8.4 21 7.6 21 7.6 18 8.3 18 8.2 19 6.3
7 16 8.7 20 3.3 22 7.4 21 7.6 21 7.8 18 8.2 18 7.9 18 6.3
8 16 8.7 15 1.1 18 1.0 21 7.3 21 7.7 17 7.8 18 7.8 18 5.7
9 16 8.7 13 0.8 14 0.1 15 0.1 17 0.5 17 7.8 18 7.6 18 5.6
10 16 8.7 12 0.1 12 0.1 12 0.1 13 0.1 17 7.6 18 6.9 17 3.6
11 16 8.7 12 0.1 12 0.1 12 0.1 12 0.0 17 6.8 17 5.3 17 2.7
12 16 8.7 12 0.1 12 0.1 12 0.1 12 0.0 16 6.1 16 3.6 17 1.9

Recent temperature and dissolved oxygen profile plots

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