Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
EAGLE LAKE AROOSTOOK 67 1 3.2 flushes/yr 574 ft
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 2018 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 20 44 12 4.5 4.5 4.5 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 44 12 4.5 4.5 4.5 1 Inf 1

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1975-09-08
Depth (m) TEMP DO
0 17.0 9.9
1 16.9 9.7
2 16.9 9.7
3 16.9 9.7
4 16.9 9.7
5 16.9 9.7
6 16.9 9.7
7 16.9 9.6
8 16.6 9.5
9 16.1 8.3
10 14.4 6.9
11 12.5 6.8
12 11.6 6.8
13 11.5 6.8
14 9.8 6.3
15 9.0 6.3
16 9.0 6.3
17 8.5 6.1
18 8.5 5.7
19 8.3 5.6
20 8.2 5.3
21 8.2 5.2
22 8.2 4.8
23 8.2 4.7

Most recent temperature and dissolved oxygen profile plots

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