Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
PALERMO WALDO 13 1 1 flushes/yr 284 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
46 m
(150 ft) 		14 m
(44 ft) 		487 ha
(1,203 ac) 		65,640,463 m3
(53,216 ac-ft) 		85 km2
(33 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
1977 6 8.0 3.5 4.5 5.3 6
1978 4.5 5.0 6.3 7
1979 6 45 5 7.5 4.4 4.4 4.4 1 4.6 4.6 4.6
1980 3.7 5.1 6.2 7
1981 8 30 10 14.0 3.6 4.8 5.5 8 1.4 2.4 4.4
1982 4.0 4.7 5.5 5
1983 2.8 4.5 5.7 7
1984 7 7 7.0 3.3 4.1 5.0 6 2.6 2.6 2.6
1985 2.5 4.4 6.0 6
1986 2.8 4.0 4.5 6
1987 9 35 9 8.0 2.5 4.3 6.0 7
1988 3.5 4.2 4.9 3
1989 2.5 3.5 4.5 4
1991 10 32 6.9 5 5.2 5.2 5.2 1 1.2 1.2 1.2
1994 4.2 5.4 6.3 7
1995 4.6 5.6 6.5 6
1996 4.5 5.3 6.4 4
1997 10 38 7.2 6 3.6 5.0 5.7 7 2.7 2.7 2.7
1998 4.2 5.0 5.8 6
1999 4.4 5.3 6.4 5
2000 4.8 5.3 5.8 6
2001 4.2 5.5 6.3 6
2002 36 10 45 5 4.1 5.5 6.2 7 1.9 1.9 1.9
2003 4.0 5.3 6.1 6
2004 4.3 4.9 5.8 6
2009 10 4.1 4.1 4.1 1 3.4 3.4 3.4
2010 6 6.5 6.5 6.5 1 2.0 2.0 2.0
2011 4.4 4.6 4.8 5
2013 6.5 4.1 4.7 5.2 7
2014 6.0 3.6 4.3 4.6 5
2015 21 10 38 7.0 6 7.0 4.8 5.9 7.2 7 2.8 2.8 2.8
2016 8.0 4.3 5.4 6.6 7
2017 5.5 4.1 5.2 6.0 6
2018 5.3 4.8 5.6 6.4 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
28 8.8 38 7 6.8 6.4 8.9 2.5 4.9 7.2 5.4 1.2 2.6 4.6

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2015-08-18
2016-08-07
2016-08-21
2016-09-04
2017-08-10
2017-08-23
2018-08-16
2018-09-07
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26.2 7.8 25.2 7.7 24.0 7.8 22.9 7.9 23.4 7.8 23.6 8.1 25.8 7.6 23.7 7.4
1 26.0 7.8 25.3 7.7 24.1 7.7 22.7 7.9 23.1 7.7 23.6 8.3 25.9 7.6 23.7 7.3
2 25.8 7.8 25.2 7.7 24.0 7.7 22.5 7.9 23.1 7.7 23.5 8.3 25.5 7.6 23.7 7.3
3 24.6 7.9 25.1 7.7 24.0 7.7 22.5 7.9 23.1 7.7 23.3 8.2 25.4 7.5 23.7 7.4
4 24.0 7.8 25.0 7.7 24.0 7.8 22.4 7.8 23.0 7.7 22.6 7.9 25.3 7.4 23.7 7.4
5 22.6 7.2 24.1 7.1 23.9 7.7 22.5 7.8 22.9 7.6 22.2 7.5 23.7 5.8 23.7 7.4
6 19.4 5.2 19.1 5.8 23.1 7.3 22.4 7.8 19.7 4.7 21.1 6.2 20.0 4.9 21.1 5.5
7 17.3 5.2 16.3 6.0 17.0 6.5 18.2 5.5 14.4 5.6 15.4 4.9 15.9 5.2 18.7 4.1
8 13.2 6.4 13.1 7.2 14.3 6.5 17.5 4.4 12.5 6.5 13.8 6.2 12.7 6.2 13.4 4.8
9 11.8 6.7 11.3 7.8 12.0 7.4 10.3 7.5 10.7 7.4 11.2 7.1 10.5 6.8 10.8 5.6
10 10.2 7.5 10.3 8.5 10.7 8.4 10.3 7.5 9.8 7.8 10.2 7.5 8.9 7.5 9.1 6.4
11 9.3 8.0 9.6 9.0 9.8 9.0 9.5 8.0 9.3 7.9 9.5 7.9 8.0 7.9 7.6 7.0
12 8.0 8.6 9.3 9.2 9.3 9.0 9.1 8.0 8.8 8.0 8.7 8.0 7.8 8.0 6.9 6.8
13 7.1 8.5 8.6 9.2 8.8 9.2 8.6 8.1 7.9 8.3 7.7 8.6 6.3 8.2 6.2 7.3
14 6.5 8.9 8.2 9.3 8.5 9.5 8.0 8.6 7.2 8.5 7.4 8.7 5.9 8.3 5.9 7.4
15 6.2 9.1 8.2 9.3 7.9 9.0 7.7 8.7 6.9 8.6 7.0 8.9 5.7 8.4 5.7 7.5
16 6.6 8.9
17 6.4 8.9
18
19
20 5.7 9.2 7.0 9.6 7.0 9.6 7.0 8.9 6.0 9.0 6.3 8.9 5.2 8.3 5.3 7.5
21
22
23
24
25 5.5 9.3 6.7 9.5 6.7 9.5 6.8 8.6 5.7 8.7 5.8 8.8 5.0 8.4 5.0 7.4
26
27
28
29
30 5.4 9.0 6.6 9.4 6.6 9.5 6.5 8.3 5.5 8.4 5.6 8.5 4.9 8.0 4.9 7.2
31
32
33
34
35 5.3 8.4 6.3 9.0 6.4 7.7 5.5 8.2 4.8 7.6 4.9 6.6
36
37
38
39
40 5.3 8.2 6.3 7.7 5.4 7.5 4.8 5.9

Most recent temperature and dissolved oxygen profile plots

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