Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
HEBRON OXFORD 11 1 5.35 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
12 m
(41 ft)
4 m
(12 ft)
57 ha
(141 ac)
2,144,759 m3
(1,739 ac-ft)
20 km2
(7.9 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 2017 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
1980 18 80 10 26 2.7 4.2 5.0 6 2.3 4.0 5.5
1981 21 62 13 36 3.7 3.9 4.1 4 1.9 3.2 4.8
1982 16 60 12 22 2.7 3.3 4.0 7 4.6 4.6 4.6
1983 3.4 3.7 4.2 5
1984 19 10 17 4.5 4.5 4.5 1
1985 4.0 5.5 6.0 4
1986 3.4 4.0 4.5 7
1987 15 59 15 13 4.2 4.2 4.2 1
1989 13 15 5.0 5.0 5.0

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
18 65 12 22 2.7 4.1 6 4.4 1.9 4.2 5.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1980-09-03
1981-09-21
1982-09-02
1984-08-28
1987-09-04
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24 7.8 18 8.0 20.9 9.5 24.2 7.7 20 9.0
1 24 8.0 18 8.0 19.0 9.5 23.0 7.7 20 9.0
2 24 8.0 18 8.0 18.2 9.4 22.8 7.7 20 9.0
3 24 8.0 18 8.0 18.0 9.2 22.0 7.7 20 9.0
4 24 8.1 18 8.0 17.5 8.1 20.2 4.1 20 9.0
5 20 2.2 18 8.0 15.0 2.4 14.8 1.0 18 7.3
6 17 0.3 17 5.0 10.0 0.4 12.0 0.3 16 0.5
7 14 0.2 14 0.5 8.5 0.4 10.0 0.2 11 0.2
8 12 0.1 11 0.3 8.5 0.4 9.0 0.2 10 0.2
9 10 0.1 10 0.2 7.0 0.4 8.0 0.2 9 0.1
10 9 0.1 10 0.2 7.0 0.4 8.0 0.2 8 0.1
11 9 0.1 10 0.2 7.0 0.4 7.5 0.1
12 10 0.2 7.0 0.4

Recent temperature and dissolved oxygen profile plots

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