Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
MOUNT DESERT HANCOCK 16 1 0.61 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
20 m
(66 ft) 		7 m
(22 ft) 		92 ha
(227 ac) 		6,248,144 m3
(5,065 ac-ft) 		5 km2
(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
1992 8.1 8.4 9.2 2
1993 6.0 6.4 6.8 3 6
2009 12 3.5 67 6.5
2010 12 3.9 56 6.6
2011 12 3.8 62 6.5
2012 9 4.6 64 6.8
2014 7.1
2015 13 4.3 66 6.4
2016 10 4.9 71 6.9
2017 9 4.9 76 6.7

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
11 4.3 66 6.6 6 7.4 9.2 2.5 Inf 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1992-08-25
1993-08-10
1993-08-28
Depth (m) TEMP DO TEMP DO TEMP DO
0 22 8.8 23 8.8 24 8.9
1 22 8.8 23 8.8 24 8.8
2 21 8.8 24 8.8
3 21 8.8 23 8.9 24 8.8
4 21 8.8 23 8.9 24 8.8
5 21 8.8 23 8.9 23 9.1
6 21 8.8 23 9.0 22 9.2
7 21 8.6
8 20 8.6
9 20 8.3
10 18 8.2
11 15 7.8
12 12 6.5
13 11 5.6
14 11 5.4
15
16 11 5.1
17
18 11 4.8
19 11 0.1

Recent temperature and dissolved oxygen profile plots

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