Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T11 R11 WELS AROOSTOOK 62 1 3.92 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
19 m
(62 ft) 		8 m
(27 ft) 		306 ha
(757 ac) 		26,385,749 m3
(21,391 ac-ft) 		72 km2
(28 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
1989 14 29 8 4.3 4.3 4.3 1 5.3 5.3 5.3
1996 11 33 7 12 4.7 4.7 4.7 1 3.6 3.6 3.6

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
12 31 7.5 12 4.3 4.5 4.7 1 3.6 4.5 5.3

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-18
1996-08-26
Depth (m) TEMP DO TEMP DO
0 21.0 8.4 20.3 8.9
1 21.5 8.4 20.3 8.8
2 21.5 8.4 20.0 8.8
3 21.5 8.4 19.8 8.7
4 21.5 8.4 19.8 8.7
5 21.5 6.2 19.7 8.7
6 18.0 5.6 19.2 8.5
7 15.0 4.8 15.9 5.8
8 13.0 4.7 14.1 5.5
9 11.5 4.8 12.2 5.4
10 10.0 4.9 10.9 5.3
11 9.9 5.1
12 9.5 4.8 9.0 4.6
13 8.8 4.2
14 9.0 4.7 8.5 4.0
15 8.5 3.8 8.5 3.9
16 8.4 3.8
17 8.4 3.6

Recent temperature and dissolved oxygen profile plots

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