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Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
NOBLEBORO LINCOLN 7 1 1.1 flushes/yr 77 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
19 m
(61 ft) 		5 m
(18 ft) 		583 ha
(1,440 ac) 		31,659,000 m3
(25,666 ac-ft) 		24 km2
(9.4 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 (μS/cm), pH: pH (standard units)

TP = Total Phosphorus (μg/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 (μg/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 3.5 3.5 3.5 2
1982 3.0 3.5 5.0 2
1984 3.2 3.8 4.5 3
1985 2.8 4.2 5.3 4
1986 4.0 4.9 6.0 5
1987 8.0 44 3.3 4.6 5.8 6
1988 3.5 4.6 6.0 6
1989 2.6 4.0 6.0 6
1990 4.0 4.5 5.5 5
1991 10.0 41 6.8 9 3.5 4.6 5.7 5 3.5 3.5 3.5
1992 4.0 4.8 6.5 5
1997 14 34 3.1 3.9 4.6 5 4.4 4.4 4.4
1998 3.3 3.8 4.3 5
1999 7.5 47 13 47 3.6 4.3 4.8 1 5.8 5.8 5.8
2000 9.0 48 11 30 3.3 3.7 5.0 4 5.2 5.2 5.2
2001 4.4 4.4 4.4 1
2002 3.1 4.2 5.3 5
2003 3.4 4.1 5.0 6
2004 3.7 4.6 5.3 6
2005 3.2 4.0 5.1 5
2006 2.9 3.8 5.2 4
2007 2.8 4.2 5.1 4
2008 3.6 4.2 4.8 4
2009 2.8 3.2 4.2 4
2010 3.0 3.8 4.6 5
2011 7.0 11 92 3.2 4.2 4.7 4 4.1 4.1 4.1
2012 3.2 3.8 4.3 4
2013 3.0 3.6 4.1 4
2014 3.1 3.4 3.8 3
2015 4.0 4.2 4.8 6
2016 4.2 4.6 4.9 4
2017 3.8 4.3 5.5 6
2018 4.7 4.7 4.7 1

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
8.3 45 6.8 12 51 2.6 4.1 6.5 4.2 3.5 4.6 5.8

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2001-08-18
2002-08-25
2004-09-02
2006-08-22
2007-08-29
2011-08-18
2015-08-03
2017-09-15
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24.4 7.4 24 7.6 23 7.9 24 8.2 23.6 8.4 24 7.9 26.1 8.2 23 8.6
1 24.2 7.4 24 7.4 23 7.9 23 8.2 26.6 8.3 24 7.9 26.1 8.3 22 8.6
2 24.0 7.3 24 7.5 23 7.9 23 8.1 23.5 8.3 23 7.7 26.0 8.3 21 8.2
3 23.9 7.3 24 7.5 23 7.9 23 8.0 23.3 8.2 22 7.4 25.6 8.4 20 8.2
4 23.9 7.2 24 7.5 23 7.6 23 7.9 22.2 7.5 22 7.3 24.1 7.6 20 8.0
5 23.3 5.7 24 7.4 22 6.3 22 6.8 21.4 6.9 22 6.6 22.4 6.0 20 7.6
6 19.4 0.7 21 0.5 22 5.4 20 2.0 20.1 4.7 20 0.4 19.4 1.1 20 7.3
7 15.9 0.4 18 0.4 20 1.8 16 1.0 17.3 1.3 16 0.0 16.5 0.5 19 6.5
8 13.2 0.4 15 0.3 17 0.7 14 0.9 14.0 1.3 14 0.0 12.9 0.2 17 0.8
9 10.9 0.3 14 0.3 14 0.7 13 0.9 12.0 1.2 12 0.0 10.8 0.1 13 0.1
10 10.1 0.3 13 0.3 12 0.6 12 0.8 10.5 1.1 11 0.0 9.3 0.1 11 0.1
11 9.4 0.3 12 0.3 11 0.5 12 0.8 10.1 1.0 10 0.0 8.9 0.0 11 0.1
12 9.0 0.3 12 0.2 11 0.5 11 0.7 9.9 1.0 10 0.0 8.7 0.0 10 0.1
13 8.8 0.2 11 0.2 11 0.7 9.9 1.0

Most recent temperature and dissolved oxygen profile plots

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