Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
EAGLE LAKE AROOSTOOK 67 1 3.2 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
43 m
(140 ft) 		14 m
(45 ft) 		2,258 ha
(5,580 ac) 		308,000,000 m3
(249,700 ac-ft) 		233 km2
(90 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
1975 19 40 11 5.0 5.0 5.0 1
1977 21 71 4.4 4.4 4.4 1

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
20 56 11 4.4 4.7 5 1 Inf 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1975-09-09
Depth (m) TEMP DO
0 16.8 10.2
1 16.8 10.2
2 16.8 10.2
3 16.8 10.2
4 16.8 10.1
5 16.8 10.1
6 16.8 10.1
7 16.8 10.1
8 19.8 10.0
9 16.8 10.0
10 16.8 9.9
11 16.4 9.7
12 16.4 9.7
13 15.8 9.0
14 12.5 8.5
15 11.8 8.3
16 11.1 7.9
17 10.6 7.7
18 9.9 7.7
19 9.4 7.7
20 8.2 8.1
21 7.8 8.1
22 7.2 8.1
23 6.8 7.9
24 6.5 7.5
25 6.5 7.3
26 6.2 7.1
27 6.2 6.8

Recent temperature and dissolved oxygen profile plots

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