Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LINCOLN PLT OXFORD 28 1 2.06 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
19 m
(63 ft) 		8 m
(26 ft) 		2,505 ha
(6,190 ac) 		194,820,752 m3
(157,944 ac-ft) 		244 km2
(94 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
1981 4.3 4.8 5.3 2
1986 9.0 30 8 10 5.0 5.0 5.0 1
1990 13.0 25 6.6 4.5 4.5 4.5 1
2001 3.4 3.4 3.4 1
2005 20 7.6 26 7.0 6 5.1 5.1 5.1 1 3.7 3.7 3.7

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
20 9.9 27 6.8 7 10 3.5 4.6 5.3 1.2 3.7 3.7 3.7

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1986-08-15
1990-09-04
2005-08-25
Depth (m) TEMP DO TEMP DO TEMP DO
0 21 8.4 20 9.8 20 7.6
1 20 9.0 20 7.6
2 21 8.4 20 9.0 20 7.6
3 20 9.0 20 7.6
4 21 8.4 20 8.9 20 7.5
5 19 8.8 20 7.5
6 20 8.1 19 8.7 20 7.0
7 19 6.4 18 5.5 18 3.4
8 17 4.8 17 3.0 16 1.3
9 16 1.7
10 16 4.0 15 1.5
11
12 15 3.5

Recent temperature and dissolved oxygen profile plots

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