Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
JEFFERSON LINCOLN 13 1 1.13 flushes/yr 178 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
11 m
(35 ft)
4 m
(14 ft)
28 ha
(69 ac)
1,238,245 m3
(1,004 ac-ft)
2 km2
(0.8 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
1999 5.0 5.0 5.0 1
2012 44 6.2 4.8 4.8 4.8 1
2015 6.8 6.8 6.8 1
2018 11 6 49 6.6 6.5 22 7.0 7.4 7.7 2 2 2.5 3

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
11 6 47 6.3 6.5 22 4.8 6 7.7 1.2 2 2.5 3

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2012-08-15
2015-08-30
2018-09-13
Depth (m) TEMP DO TEMP DO TEMP DO
0 26.0 7.8 25.2 7.9 21.8 8.1
1 26.0 7.7 25.1 7.9 21.5 8.1
2 25.8 7.6 24.7 7.9 21.4 8.1
3 25.4 7.7 24.4 7.9 21.3 8.0
4 23.0 7.8 23.8 7.4 21.1 7.9
5 16.1 3.5 19.9 7.4 20.6 7.5
6 12.4 0.2 14.7 5.4 14.5 2.5
7 10.9 0.1 11.3 1.0 10.5 1.1
8 9.8 0.1 9.9 0.4 8.3 0.4
9 7.5 0.1
10 7.1 0.1
11 7.0 0.0

Most recent temperature and dissolved oxygen profile plots

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