Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T17 R04 WELS AROOSTOOK 68 1 0.29 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
50 m
(163 ft) 		15 m
(49 ft) 		2,715 ha
(6,709 ac) 		406,374,688 m3
(329,453 ac-ft) 		195 km2
(75 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
1972 26 83 6 10 8.8
1981 2.4 2.4 2.4 1
2010 3.3 4.1 4.7 3
2011 3.2 4.5 6.2 5
2012 3.4 4.9 6.4 5
2013 4.0 5.4 7.4 4
2014 4.6 5.4 6.8 5
2015 5.2 5.6 6.8 5
2016 6.9 7.1 7.3 1
2017 4.4 5.5 6.5 4

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
26 83 6 10 8.8 2.4 5 7.4 3.7 Inf 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1972-08-08
1972-09-28
Depth (m) TEMP DO TEMP DO
1 18 7.8 14 9.3
2
3
4
5 18 9.0 14 9.0
6 18 6.0
7
8
9 17 10.8
10
11 14 9.2
12 17 8.2
13
14
15
16
17 13 9.6

Recent temperature and dissolved oxygen profile plots

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