Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
BAR HARBOR HANCOCK 16 1 4.32 flushes/yr 215 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft) 		NA m
(NA ft) 		1 ha
(3 ac) 		96,000 m3
(78 ac-ft) 		1 km2
(0.2 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
1994 38 6.6
1995 5.0 33 6.5
2004 7.5 94 7.0 2.6 2.6 2.7 1 1
2006 48 6.6 11 2.6 2.7 2.8 6 6 2.5 2.8 3.0
2009 10.0 86 6.6 13 12 2.9 3.1 3.2 6 4 1.8 4.1 6.4
2012 9.3 45 6.6 17 9 2.8 3.0 3.2 5 4 2.5 4.2 5.9
2015 8.2 6.9 11 2.9 3.0 3.2 3 5 4.6 4.6 4.6
2018 46 6.6 12 7 2.6 3.4 3.5 3 6 2.5 4.2 6.2

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
8 56 6.6 13 9.8 2.6 3 3.5 4 1.8 4 6.4

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2006-08-09
2009-08-26
2012-08-27
2015-08-20
2018-08-27
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26 8.4 25 7.6 24 7.6 25 8.0 22 7.5
1 23 7.9 23 6.8 24 7.6 25 8.0 22 7.5
2 22 6.2 23 5.6 22 1.6 22 4.0 22 6.4
3 20 1.3 21 0.4 21 1.8

Most recent temperature and dissolved oxygen profile plots

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