Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
SEARSMONT WALDO 14 1 4.53 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
16 m
(51 ft) 		5 m
(17 ft) 		248 ha
(613 ac) 		12,698,679 m3
(10,295 ac-ft) 		37 km2
(14 mi2)

Secchi Disk Transparency Graphs

Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.

## [1] "No 2017 Secchi Disk Transparency Data"

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 2.0 3.6 5.0 3
1982 8.0 45 14 23 3.9 3.9 3.9 1 3.1 3.1 3.1
1983 3.9 4.0 4.0 1
1984 8.0 53 12 41 2.0 3.5 4.8 4 4.2 4.2 4.2
1985 3.2 3.2 3.2 1
1988 8.0 36 6 24 3.0 4.0 5.0 6
1989 2.0 3.1 3.7 6
1990 2.7 3.4 4.3 7
1991 12.0 36 6.8 12 2.7 4.0 5.8 5 4.3 4.3 4.3
1992 3.4 4.4 4.9 5
1993 3.0 3.9 4.5 6
1994 2.9 4.1 5.1 5
1995 3.2 3.4 3.6 2
1997 4.0 4.7 5.8 7
1998 2.7 3.9 4.8 6
1999 9.0 44 12 18 3.7 4.9 5.5 7 3.2 3.2 3.2
2000 4.6 4.8 5.1 6
2001 4.8 5.1 5.6 5
2002 5.0 5.4 5.9 4
2003 4.9 5.4 5.8 3
2004 52 15.0 49 7.1 12 26 3.0 4.2 5.1 7 6.9 6.9 6.9
2005 3.6 4.3 5.3 4
2006 3.8 4.8 5.4 6
2007 3.6 4.2 4.8 4
2008 28 7.3 40 6.9 10 23 3.6 4.4 5.2 5 4.8 4.8 4.8
2010 3.6 4.7 5.4 5
2011 4.6 4.9 5.5 7
2012 3.4 4.0 4.7 5
2013 31 10.3 43 7.2 13 17 3.2 3.7 4.3 5 6.9 6.9 6.9

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
37 9.7 43 7 11 25 2 4.2 5.9 4.8 3.1 4.8 6.9

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-08-30
1984-09-11
1988-08-31
1991-09-06
1999-08-10
2004-08-18
2008-08-13
2013-09-03
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 18.0 8.3 20 8.5 23 8.6 21.5 8.6 22 7.1 23.9 7.8 22.4 7.8 22.8 7.6
1 18.5 8.2 20 8.5 21.4 8.6 22 7.1 23.4 7.7 21.5 8.0 22.8 7.6
2 18.5 8.3 20 8.5 22 8.5 21.0 8.5 22 7.0 22.8 7.5 21.3 7.9 22.7 7.5
3 20 8.5 20.8 8.5 22 7.1 22.5 7.1 21.3 7.7 22.7 7.5
4 18.5 8.3 20 8.3 22 8.3 20.4 8.4 22 7.1 22.3 6.9 21.3 7.7 22.4 6.3
5 20 8.1 20.2 7.7 22 7.2 22.0 6.4 21.2 7.7 21.0 3.0
6 18.5 8.3 20 7.4 22 7.3 20.0 7.3 22 7.2 20.8 3.4 20.0 3.6 18.6 0.3
7 18.2 8.2 18 6.4 20 4.0 19.8 6.7 20 2.6 18.1 1.1 17.1 0.3 16.1 0.2
8 17.0 7.1 18 4.1 19 2.0 18.2 3.9 15 0.4 15.1 1.0 15.0 0.2 13.8 0.3
9 13.0 0.2 14 0.4 13 1.8 13.5 0.4 13 1.3 13.7 1.6 11.4 0.5 12.2 0.3
10 10.0 0.7 12 0.4 12 2.0 11.5 0.8 11 1.5 12.2 1.8 9.9 0.9 10.9 0.5
11 9.1 0.9 11 0.5 10.0 0.8 11 1.3 10.5 1.3 9.0 0.9 9.7 0.7
12 8.5 0.8 10 0.3 11 1.7 9.2 0.6 10 1.0 9.9 1.1 8.2 0.7 9.1 0.7
13 8.0 0.8 8.5 0.3 9.5 0.8 7.8 0.4 8.9 0.4
14 8.0 0.2 10 0.1 8.2 0.2 9.4 0.7 7.7 0.3 8.7 0.3
15 8.1 0.2 9.1 0.4 7.5 0.2 8.7 0.3
16 9.0 0.2

Recent temperature and dissolved oxygen profile plots

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