Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
MOUNT DESERT HANCOCK 16 1 4.6 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
12 m
(40 ft) 		5 m
(15 ft) 		13 ha
(32 ac) 		610,612 m3
(495 ac-ft) 		1 km2
(0.3 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
1992 6.7 7.1 7.4 3
1993 7.1 7.9 9.5 3
1994 39 6.1
1995 3.4 37 6.4 5.0 10 7.7 8.2 8.8 2
1997 6.5 6.5 6.5 1
2004 2.3 65 6.9 8.5 8.5 8.6 1
2007 2.0 54 6.3 4.0 6.0 7.4 8.4 10 0.8 1.1 1.5
2008 52 6.0 3.3 3.4 3.4 1
2009 5.6 6.1 6.3 2
2010 2.4 45 5.9 4.0 5.2 6.9 8.2 7 1.0 1.4 1.9
2012 11 2.8 43 6.5 4.0 11 7.4 7.4 7.4 1 2.4 2.4 2.4
2013 2.5 6.5 4.0 6.1 7.2 8.0 6 1.2 1.3 1.4
2016 2.4 59 5.8 3.5 7.4 8.2 9.2 6 1.2 1.3 1.5

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
11 2.5 49 6.2 4.1 10 3.3 7.1 9.5 3.6 0.8 1.5 2.4

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2010-08-09
2010-08-19
2010-09-20
2012-09-20
2013-08-21
2013-09-16
2016-08-25
2016-09-28
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23.1 8.0 23.7 8.3 18.4 9.1 18.7 8.8 24.6 9.0 18.8 9.0 23.8 8.3 17.8 9.0
1 23.0 8.0 23.4 8.3 18.4 9.1 18.7 8.8 23.6 9.0 18.8 9.0 23.7 8.3 17.8 8.9
2 23.0 8.0 23.4 8.3 18.4 9.1 18.6 8.8 23.0 9.0 18.8 8.8 23.7 8.3 17.8 8.9
3 23.0 8.0 23.3 8.3 18.4 9.1 18.5 8.8 22.2 8.7 18.8 8.9 23.6 8.3 17.8 8.9
4 22.9 8.0 22.9 8.2 18.4 9.1 18.5 8.8 20.1 8.6 18.8 8.9 23.5 8.3 17.8 8.9
5 19.4 10.7 19.3 10.9 18.3 9.1 18.4 8.7 15.6 8.1 17.9 7.8 23.4 8.3 17.8 8.9
6 16.0 9.9 14.0 9.4 18.3 9.1 16.4 7.5 11.3 7.4 13.1 6.5 22.1 9.6 17.8 8.9
7 12.2 7.1 10.9 8.0 14.1 5.6 12.3 5.0 9.4 6.1 10.3 5.0 16.1 9.2 17.7 9.0
8 10.5 6.7 9.1 7.1 10.7 6.3 10.8 4.3 8.5 6.0 8.8 4.5 12.2 8.4 13.8 5.7
9 9.4 5.8 7.9 5.4 9.1 5.6 9.6 3.0 7.3 4.6 7.9 3.8 10.4 6.2 10.6 2.0
10 8.6 3.6 7.1 2.5 7.5 1.6 8.6 0.8 7.1 3.8 7.4 2.7 9.2 1.9 9.3 0.4
11 7.9 2.4 6.8 0.8 7.0 0.3 8.2 0.4 6.8 2.3 7.1 1.6 8.5 0.4 8.7 0.3
12 8.2 0.4 6.8 0.3 6.9 0.2 7.8 0.2 6.8 0.3
13 6.9 0.2

Recent temperature and dissolved oxygen profile plots

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