Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T17 R04 WELS AROOSTOOK 68 1 0.29 flushes/yr 581 ft
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.

## [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
1972 26 84 18 4 9
1981 5.5 5.5 5.5 1
1984 3.5 4.1 5.5 2
1987 3.5 5.7 6.5 4
1988 5.0 5.2 5.5 3
1989 3.5 4.3 4.9 3
1994 5.7 6.1 6.5 1
1995 2.8 4.3 5.6 4
1996 2.3 3.4 5.4 5
1997 3.2 3.8 4.0 3
1998 4.0 4.2 4.4 3
1999 4.2 4.9 5.6 4
2000 2.4 3.8 5.1 3
2001 30 86 7.9 12 2.3 3.0 4.2 5 8.5 8.5 8.5
2002 2.4 4.0 5.4 5
2005 2.4 3.9 5.4 4
2006 10 36 89 7.8 14 2.4 3.4 4.8 7 8.3 8.3 8.3
2007 1.8 2.4 3.1 3
2010 4.2 4.4 4.6 1
2011 3.2 4.3 5.7 3 1
2013 4.4 5.0 5.7 2 2
2014 4.6 5.2 5.8 2 2
2016 5.3 5.3 5.3 1
2017 4.5 5.0 5.6 2 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
10 30 86 7.9 13 18 4 9 1.8 4.4 6.5 3.1 8.3 8.4 8.5

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2001-08-29
2006-08-14
Depth (m) TEMP DO TEMP DO
0 20 8.9 19 8.7
1 20 8.9 19 8.8
2 20 8.9 19 8.8
3 19 8.8 19 8.8
4 19 8.8 19 8.8
5 19 8.6 19 8.8
6 19 8.4 19 8.1
7 19 8.5 16 2.0
8 19 8.5
9 19 8.6

Most recent temperature and dissolved oxygen profile plots

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