Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
FRYEBURG OXFORD 4 1 0.5 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
1 m
(4 ft)
1 m
(2 ft)
447 ha
(1,104 ac)
26,080,982 m3
(21,144 ac-ft)
13 km2
(4.8 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
1976 12.0 39 15.0 7.0 15 3.0 4.7 6.1 5 1.1 2.5 3.9
1977 8.0 4.5 5.1 5.9 3
1980 9.0 45 6.0 5.6 5.6 5.6 1 4.0 4.0 4.0
1984 5.0 3.0 3.5 4.4 4 2.1 2.1 2.1
1985 4.1 4.3 4.5 5
1986 4.0 4.5 5.0 5
1987 4.0 40 24.0 4.6 4.6 4.6 1
1990 6.0 34 6.5 9.0 4.4 5.4 6.3 5 3.5 3.5 3.5
1994 4.2 4.6 5.1 3
1995 3.1 4.4 5.2 5
1996 4.3 4.3 4.4 3
1997 3.6 4.2 4.8 2
1998 3.3 3.5 3.7 1
1999 5.0 45 8.0 14 4.6 4.6 4.6 1 3.5 3.5 3.5
2004 8.2 4.5 4.8 5.0 3
2005 15 4.0 42 6.8 6.0 6.0 10 3.2 4.0 4.9 5 4.5 4.5 4.5
2006 9.0 3.6 3.9 4.3 3
2007 4.0 4.1 4.2 1
2008 29 3.8 37 6.5 10.0 11 3.6 4.1 4.3 2 10.0 10.0 10.0
2009 3.4 4.2 5.0 2
2010 3.5 3.9 4.5 3
2012 3.2 3.5 3.7 4
2013 18 4.3 37 6.7 9.5 12 2.6 3.9 5.0 5 5.8 5.8 5.8
2014 2.9 3.5 4.0 3
2015 4.5 4.7 4.9 2
2016 3.5 4.2 4.6 4
2017 3.0 3.5 4.4 2

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
21 5.9 40 6.6 11 7.6 12 2.6 4.3 6.3 3.1 1.1 4.5 10

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1980-09-24
1984-08-30
1987-09-22
1990-09-06
1999-08-23
2005-08-25
2008-08-21
2013-08-27
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 18 9.5 24 8.7 18 8.5 22 8.4 24 8.5 23 9.1 22 8.2 20 8.3
1 24 8.7 18 8.5 22 8.2 23 8.5 23 9.1 21 8.3 20 8.5
2 18 9.1 24 8.7 18 8.5 22 8.2 23 8.6 23 9.1 21 8.2 23 8.4
3 24 8.7 18 8.5 21 7.9 23 8.5 23 9.1 21 8.0 23 8.4
4 18 9.1 22 6.8 18 8.5 20 4.9 23 8.5 20 8.9 21 7.8 22 6.5
5 17 2.4 18 8.5 18 2.0 22 7.9 14 2.9 19 4.5 19 1.4
6 18 9.1 15 1.5 18 8.5 17 1.0 20 1.4 12 1.6 18 3.7 16 0.4
7 14 0.9 18 8.4 16 0.5 19 0.4 12 1.5 17 2.6 15 0.3
8 18 9.0 13 0.9 16 0.1 17 0.3 11 1.2 15 0.5 14 0.3
9 18 8.8 13 0.8 15 0.0 16 0.3 11 0.9 14 0.3 14 0.3
10 13 0.7 15 0.0 11 0.7 14 0.3 14 0.3
11 13 0.6 15 0.0 14 0.3 14 0.3
12 13 0.4 14 0.2
13 13 0.2

Recent temperature and dissolved oxygen profile plots

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