Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
WATERFORD OXFORD 10 1 0.93 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
5 m
(15 ft) 		2 m
(7 ft) 		25 ha
(62 ac) 		528,000 m3
(428 ac-ft) 		1 km2
(0.2 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
1989 2.5 2.5 2.5 1
1990 7.2 6.5 3.0 3.2 3.5 2
1991 6.4 12 14 12 2.2 3.2 4.2 7 5.5 5.5 5.5
1992 12 3.5 3.9 4.4 5 3.6 3.6 3.6
1993 17.0 6.7 16 96 13 3.0 4.0 5.1 6 1 3.2 3.8 4.5
1994 8.0 6.9 14 12 15 2.5 3.2 3.8 5
1995 10.0 6.8 14 12 2.7 3.5 4.1 5 3
1996 11.0 6.5 13 1.9 2.7 4.1 5 2.1 6.1 13.8
1997 16 2.2 3.3 4.2 8 1 4.6 6.0 7.8
1998 6.8 6.2 24 24 1.6 2.8 3.8 9 18.9 18.9 18.9
1999 5.2 6.3 12 3.0 3.6 4.0 4 3 2.2 2.2 2.2
2000 29 5.5 40 6.3 14 3.1 3.7 4.4 7 3 1.4 3.9 8.3
2001 27 8.0 42 6.7 12 19 3.0 3.6 4.6 6 1 2.3 5.4 8.9
2002 29 6.3 41 6.6 15 2.5 3.3 4.1 6 2.9 8.5 19.2
2003 26 7.0 36 6.5 12 3.0 3.9 4.5 5 2.2 3.9 5.2
2004 18 6.3 30 6.6 14 3.3 3.9 4.9 6 2.9 6.9 12.0
2005 25 7.0 31 6.5 14 21 2.8 3.7 4.6 5 1.1 4.6 10.4
2006 25 6.2 28 6.6 15 2.7 3.0 3.5 3 6.2 10.5 17.0
2007 19 6.3 31 6.6 13 3.1 3.9 5.0 5 1 3.6 6.1 9.5
2008 25 7.3 27 6.4 16 2.4 3.6 4.8 5 3.8 13.0 22.0
2009 30 7.8 23 6.4 17 2.9 3.2 3.4 2 4.2 4.2 4.2
2010 8 13.0 30 6.8 10 4.0 4.0 4.0 1 2.4 2.4 2.4
2011 20 8.5 32 6.7 16 3.8 3.8 3.8 1 5.3 5.3 5.3
2012 32 6.7 34 6.6 13 3.3 3.5 3.7 2 4.0 4.0 4.0
2013 40 5.4 25 6.4 14 3.6 3.6 3.6 1 2.4 2.4 2.4
2014 59 6.5 30 6.5 14 3.2 3.4 3.6 2 6.9 11.9 17.0
2015 20 8.5 34 6.6 10 3.8 3.8 3.8 1 3.0 3.0 3.0
2016 36 9.0 37 6.7 12 3.6 3.6 3.6 1 3.6 3.6 3.6
2017 59 8.0 38 6.7 10 3.3 3.3 3.3 1 3.5 3.5 3.5

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
29 7.9 33 6.5 14 12 32 14 1.6 3.5 5.1 4 1.1 6 22

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2011-08-26
2012-08-15
2013-08-28
2014-08-12
2014-08-26
2015-08-26
2016-08-15
2017-08-24
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24 8.9 25 7.1 24 7.9 24 8.3 24 8.9 24 8.4 25 7.0 24 7.8
1 23 8.9 25 7.0 24 7.6 24 8.2 23 8.9 24 8.4 25 7.0 24 7.8
2 23 8.9 25 7.2 22 6.0 22 5.5 20 4.0 24 8.3 24 7.0 23 7.7
3 23 8.8 23 5.1 18 0.3 18 0.6 22 4.1 24 4.9 21 2.7
4 20 4.5 21 1.6 15 0.0 16 0.1 19 0.1 22 2.0 15 0.3

Recent temperature and dissolved oxygen profile plots

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