Processing math: 100%

Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
EASTBROOK HANCOCK 24 1 4.76 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(26 ft) 		3 m
(9 ft) 		368 ha
(909 ac) 		10,255,680 m3
(8,314 ac-ft) 		33 km2
(13 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 (μS/cm), pH: pH (standard units)

TP = Total Phosphorus (μg/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 (μg/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
1979 4 2.7 2.7 2.7 1
2014 3.1 4.6 6.2 3
2015 32 5 27 6.6 13 3.1 4.0 6.3 5 8.4 8.4 8.4
2016 3.3 3.8 4.2 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
32 4.5 27 6.6 13 2.7 3.8 6.3 2.8 8.4 8.4 8.4

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1979-09-06
2015-08-20
2016-09-01
Depth (m) TEMP DO TEMP DO TEMP DO
0 21 8.6 25 7.9 23 8.0
1 21 8.4 25 7.9 23 8.0
2 21 8.4 25 7.5 23 8.0
3 21 8.2 24 7.4 23 7.9
4 20 8.0 23 6.3 23 8.0
5 20 6.8 23 6.0 22 7.7
6 23 5.4 22 7.4
7 22 7.1

Recent temperature and dissolved oxygen profile plots

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