Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T03 R10 WELS PISCATAQUIS 50 1 2.01 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
10 m
(33 ft) 		2 m
(8 ft) 		37 ha
(91 ac) 		921,720 m3
(747 ac-ft) 		1 km2
(0.6 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
1981 9.0 26 8 12 4.9 5.2 5.8 2 2.7 2.7 2.7
1982 4.9 5.2 5.3 3
1983 5.0 5.5 5.9 3
1984 6.5 9 41 3.5 5.4 7.3 4 2.6 2.6 2.6
1992 4.6 4.6 4.6 1
1994 4.5 4.5 4.5 1
1995 5.5 5.5 5.5 1
1996 6.0 25 7 16 4.1 4.3 4.5 1 2.8 2.8 2.8
1998 4.5 4.5 4.5 1
2000 5.5 5.5 5.5 1
2001 4.0 4.0 4.0 1
2003 4.5 4.5 4.5 1
2008 3.1 3.1 3.1 1
2009 4.0 4.0 4.0 1
2011 3.0 3.0 3.0 1
2012 3.6 3.6 3.6 1
2013 4.5 4.5 4.5 1
2017 22 8.0 27 6.9 7 12 5.6 5.6 5.6 1 2.7 2.7 2.7

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
22 7.4 26 6.9 7.8 20 3 4.6 7.3 1.4 2.6 2.7 2.8

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1981-09-01
1984-08-27
1996-08-21
2017-09-20
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 19 8.7 22.0 9.5 21.2 8.2 20.8 8.7
1 20 8.5 22.0 9.8 21.2 8.3 20.0 8.8
2 20 8.5 20.5 9.7 20.4 8.2 19.7 8.8
3 19 8.3 20.0 9.5 19.7 7.4 17.8 8.9
4 18 7.4 18.8 8.0 17.1 1.8 16.5 9.0
5 18 3.5 15.5 1.9 14.1 0.2 15.9 8.0
6 15 0.5 13.0 0.1 11.0 0.1 14.6 5.6
7 12 0.5 10.9 0.1 9.9 0.1 11.1 2.4
8 10 0.5 9.9 0.1 9.0 0.1 9.2 1.2
9 10 0.5 9.8 0.1 8.8 0.1 9.3 0.5
10 9 0.4 9.8 0.1 8.8 0.1
11 9 0.3
12 9 0.3

Recent temperature and dissolved oxygen profile plots

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