Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
WATERFORD OXFORD 10 1 0.47 flushes/yr 537 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
13 m
(42 ft) 		7 m
(23 ft) 		178 ha
(440 ac) 		12,372,328 m3
(10,030 ac-ft) 		10 km2
(3.8 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
1978 7 4.4 5.2 6.5 5
1979 4.0 5.3 6.3 5
1980 5.0 35 10.0 18.0 2.3 3.4 6.7 6 3.6 3.6 3.6
1981 2.5 3.2 4.7 7
1982 5.0 33 7.0 9.0 2.2 3.1 5.0 6 2.3 2.8 3.7
1983 7.5 11.7 2.3 4.6 6.8 7 1.8 3.0 4.1
1984 3.5 24 10.5 2.9 5.1 8.6 8 1.0 3.1 6.7
1985 2.5 23 5.0 13.0 6.0 8.0 9.3 7 1.4 4.5 15.2
1986 5.0 7.1 8.0 6
1987 5.2 6.5 7.4 5
1988 6.5 5.0 12.0 4.7 6.1 7.3 5
1989 4.1 4.8 5.3 2
1990 5.0 6.6 4.9 6.0 7.6 5
1991 7.0 5.0 5.6 6.5 7 3.0 3.0 3.0
1992 7.8 4.6 5.3 6.1 4
1993 10.5 6.7 8.0 4.6 6.3 7.8 6
1994 9.0 7.5 9.0 10.2 4.8 6.0 7.3 6
1995 6.7 6.9 7.0 12.5 11.0 5.3 6.6 8.0 5
1996 8.0 6.6 8.5 5.4 5.9 7.5 5 4.0 4.0 4.0
1997 4.0 29 6.9 6.0 9.5 11.3 5.5 6.8 7.8 5 1.9 2.4 2.6
1998 6.1 6.1 8.7 8.5 3.8 5.5 7.8 5 2.4 3.0 3.6
1999 5.1 41 6.5 8.5 7.9 5.5 6.5 7.9 5 1.5 2.6 3.5
2000 15.8 4.0 35 6.3 7.9 11.8 4.3 4.9 6.0 9 2.9 4.0 5.2
2001 11.5 5.7 34 6.8 8.1 13.8 13.0 5.0 6.0 6.8 7 2.2 3.2 5.2
2002 12.7 5.6 36 6.7 8.1 11.0 4.1 5.8 7.3 9 2.1 3.0 5.1
2003 8.6 6.0 30 6.6 7.5 9.0 3.4 5.9 7.3 9 1.6 3.1 5.2
2004 13.5 4.9 26 6.6 7.3 10.0 3.4 5.2 6.3 7 2.1 3.0 4.2
2005 19.2 6.4 26 6.7 8.2 9.0 4.8 5.7 6.4 5 2.0 3.2 6.0
2006 13.9 5.4 26 6.7 7.6 11.3 4.8 5.7 6.7 6 1.7 2.4 4.6
2007 13.8 5.0 26 6.7 6.2 8.7 5.0 6.0 6.8 5 2.0 2.7 3.3
2008 12.8 6.2 23 6.6 6.3 8.0 5.3 6.1 6.6 5 2.4 2.8 4.6
2009 16.9 6.8 23 6.6 7.2 6.8 5.2 5.7 6.8 6 1.9 2.7 3.3
2010 12.4 8.3 22 6.7 6.4 8.7 5.2 6.5 7.9 6 2.0 2.3 2.4
2011 16.2 7.8 22 6.7 6.8 8.7 4.8 6.0 7.1 5 1.6 2.5 4.1
2012 16.1 4.9 24 6.7 6.1 12.0 3.9 5.5 6.6 6 2.4 3.3 5.7
2013 15.9 5.0 25 6.7 6.6 9.3 5.1 5.9 6.6 5 1.8 3.1 4.2
2014 31.7 5.5 28 6.6 6.9 9.3 5.6 6.2 6.7 5 2.0 2.8 3.8
2015 24.5 6.0 29 6.8 5.8 9.3 5.6 6.5 7.4 6 2.0 3.2 4.8
2016 25.8 6.0 29 6.9 5.7 11.0 5.5 6.7 7.4 7 1 2.0 2.2 2.8
2017 26.6 6.0 29 6.8 6.4 4.7 6.0 7.1 8 2.6 3.2 3.7
2018 23.8 6.2 31 6.8 5.6 10.3 6.0 6.8 7.4 6 1.0 2.3 4.0

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
18 5.9 28 6.6 7 7 12 9.7 2.2 5.8 9.3 6 1 3 15

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2016-08-25
2016-09-14
2017-08-11
2017-08-30
2017-09-15
2018-08-08
2018-08-24
2018-09-13
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24 8.3 23 8.4 25 8.4 21 8.4 22 8.8 28.0 8.1 25.0 8.2 22 8.7
1 24 8.3 23 8.4 24 8.4 21 8.4 22 8.8 27.6 8.1 23.8 8.3 22 8.6
2 24 8.3 22 8.4 24 8.4 21 8.3 21 8.9 27.2 8.1 23.6 8.2 21 8.6
3 24 8.3 22 8.3 24 8.3 21 8.3 20 9.0 26.3 8.0 23.5 8.2 21 8.5
4 24 8.2 22 8.2 23 8.1 21 8.3 20 8.8 25.6 8.0 23.4 8.2 21 8.5
5 23 8.0 22 8.2 20 7.1 21 8.3 19 8.7 24.0 7.7 23.4 8.2 21 8.5
6 23 7.8 22 8.1 15 5.6 18 5.2 19 8.1 21.2 7.7 22.6 8.4 21 8.4
7 20 4.6 20 4.2 13 4.1 14 2.3 15 2.5 15.7 6.1 16.6 5.0 19 4.4
8 17 2.4 18 1.0 12 3.3 12 2.2 14 1.4 12.0 3.2 13.9 2.5 15 1.4
9 16 1.3 16 0.4 11 2.1 12 1.8 13 1.0 10.9 2.4 12.2 1.9 13 0.8
10 14 0.4 14 0.4 11 2.0 11 1.2 12 0.6 10.3 1.6 11.3 1.1 12 0.5
11 14 0.4 14 0.3 10 1.6 11 0.6 11 0.3 10.0 0.9 10.3 0.4 11 0.4
12 14 0.3 10 1.4 10 0.4 9.8 0.7 10.0 0.3 10 0.4
13 9.9 0.3

Most recent temperature and dissolved oxygen profile plots

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