Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
DENMARK OXFORD 4 2 1.04 flushes/yr 418 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
21 m
(70 ft) 		6 m
(19 ft) 		345 ha
(852 ac) 		29,604,470 m3
(24,001 ac-ft) 		18 km2
(6.8 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
1979 4.5 6.8 7.7 4
1980 5.5 6.5 7.2 4
1981 5.2 6.7 7.6 4
1982 5.1 5.5 5.9 5
1993 6.5 6.8 11.1 2.7 5.0 5.9 4 2
1994 12.0 7.3 9 3.2 4.7 5.5 5 3
1995 8.5 6.8 10 18 4.8 5.7 9.5 7 6
1996 12.0 6.8 5.5 5.5 6.8 7.8 5 3 3 3
2018 6.5 7.6 8.6 5

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
9.8 6.9 9.5 18 8.3 2.7 6.1 9.5 4.8 3 3 3

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1993-08-03
1993-08-16
1993-09-02
1994-08-03
1994-08-23
1995-08-02
1995-08-23
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24 8.3 24 8.3 24 7.3 26 7.7 22 8.2 27 7.9 24 7.8
1 24 8.3 24 8.2 24 7.3 26 7.7 22 8.2 27 7.9 24 7.7
2 24 8.2 24 8.3 24 7.1 26 7.7 22 8.2 27 7.7 24 7.8
3 22 8.1 24 8.3 24 6.8 26 7.6 22 8.2 26 7.7 24 7.8
4 21 6.7 22 7.2 24 7.2 22 1.6 22 8.2 24 6.5 24 7.8
5 20 5.0 21 2.8 17 0.1 22 8.2 19 2.3 24 6.9
6 18 0.4

Most recent temperature and dissolved oxygen profile plots

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