Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
OAKFIELD AROOSTOOK 52 1 3.39 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
12 m
(38 ft) 		4 m
(14 ft) 		50 ha
(124 ac) 		2,112,185 m3
(1,712 ac-ft) 		14 km2
(5.2 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
1977 70 158 16 2.0 2.3 2.8 2 7.7 7.7 7.7
1978 3.3 3.5 3.7 3
1979 62 140 10 25 3.5 3.5 3.5 1 3.0 3.0 3.0
1980 2.9 3.7 4.8 5
1981 63 170 13 26 3.7 4.4 5.6 7 3.6 3.6 3.6
1982 3.7 4.3 5.0 6
1983 2.9 4.4 6.0 7
1984 59 127 13 37 2.4 4.3 6.2 7 7.4 7.4 7.4
1985 3.1 4.5 6.2 6
1986 2.0 3.4 6.7 5
1987 64 158 13 55 2.2 4.4 6.5 5
1988 2.0 4.5 7.5 6
1989 2.1 4.2 5.6 6
1990 3.0 4.1 5.5 6
1991 3.5 4.6 5.8 6
2000 69 150 7 24 6.3 6.3 6.3 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
64 150 11 33 16 2 4.2 7.5 4.9 2.7 4.9 7.7

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1977-08-22
1979-09-11
1981-08-19
1984-08-27
1987-08-26
2000-08-29
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 18 10.3 16.0 8.0 20.1 9.4 21.3 9.5 17.8 8.2 21.0 9.7
1 18 10.3 20.1 9.4 21.3 9.5 17.8 8.2 20.7 9.9
2 18 10.3 16.0 8.0 19.9 9.5 21.0 9.4 17.8 8.2 20.3 9.9
3 18 10.3 19.5 9.5 21.0 9.5 17.8 7.5 20.1 9.8
4 18 10.0 16.1 7.9 19.5 9.5 20.3 9.2 17.8 7.5 19.8 9.5
5 18 9.0 16.0 7.8 19.0 9.5 17.9 9.7 17.6 7.4 19.3 8.8
6 14 1.3 14.2 6.4 13.5 0.9 14.1 0.5 17.5 7.3 17.2 4.1
7 12 0.1 12.0 0.4 12.0 0.4 12.0 0.1 16.1 4.6 13.2 0.4
8 10 0.1 9.5 0.3 9.9 3.3 10.1 0.1 11.3 1.0 10.9 0.3
9 9 0.1 9.0 0.2 9.5 0.1 10.0 0.8 9.6 0.3
10 9 0.1 9.0 0.1 9.0 0.2 9.5 0.1 9.8 0.7 9.0 0.3
11 9 0.1
12 9 0.5

Recent temperature and dissolved oxygen profile plots

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