Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
MOUNT DESERT HANCOCK 16 1 4.04 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
7 m
(22 ft) 		3 m
(10 ft) 		17 ha
(42 ac) 		525,508 m3
(426 ac-ft) 		3 km2
(1.2 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
1983 5.0 6 4.2 5.3 7.1 3 7.9 7.9 7.9
1984 3.5 4.3 6.5 6
1989 3.0 3.6 4.3 5
1992 4.4 4.7 5.0 2
1993 4.3 5.0 5.8 3 1
1995 5.0 39 6.3
1996 3.5 45 6.4 8 9 2.6 3.1 4.2 3
2007 2.4 42 6.3 7 3.8 4.9 5.3 6 1.9 2.2 2.5
2010 3.1 46 6.0 9 10 3.3 4.2 4.7 7 3.0 3.7 4.4
2012 48 3.6 42 6.2 8 4.2 4.2 4.2 1 2.0 2.0 2.0
2013 3.5 6.4 8 3.4 3.8 4.1 6 2.2 4.6 7.1
2016 3.6 54 6.0 6 4.0 5.6 6.3 6 2 2.4 3.5 4.7

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
48 3.7 45 6.2 7.4 9.5 2.6 4.4 7.1 4.4 1.9 4 7.9

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2010-08-23
2010-09-08
2010-09-27
2012-09-17
2013-08-26
2013-09-19
2016-08-24
2016-09-21
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22 7.6 22 7.3 17 8.3 20 8.4 22 8.2 19 8.2 24 7.8 21 8.4
1 22 7.6 22 7.4 17 8.2 20 7.8 22 8.2 18 8.1 24 7.9 21 8.4
2 22 7.4 22 7.2 17 8.2 19 8.2 22 8.2 17 8.0 23 7.9 21 8.3
3 22 7.4 22 7.1 17 8.2 19 8.2 22 8.0 17 7.8 23 7.7 20 8.3
4 21 4.2 21 5.5 17 8.2 19 8.2 18 0.8 17 7.7 23 7.2 20 7.8
5 18 0.4 20 0.8 17 8.0 19 8.1 15 0.4 17 6.0 22 5.2 20 7.6
6 17 0.1 19 0.2 17 0.9 19 7.7 14 0.4 16 0.6 18 0.4 20 6.4

Recent temperature and dissolved oxygen profile plots

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