Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LINCOLN PENOBSCOT 44 1 1.77 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
4 m
(12 ft) 		2 m
(7 ft) 		82 ha
(203 ac) 		1,647,818 m3
(1,336 ac-ft) 		5 km2
(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
1973 3.4 3.5 3.7 3 1
1974 3.7 3.7 3.7 4 4
1975 3.7 3.7 3.7 2 2
1976 0.9 3.0 3.7 2
1981 7 40 14 3.0 3.0 3.0 1 2.6 2.6 2.6
1991 14 30 7 14 3.3 3.3 3.3 1 1 2.9 2.9 2.9

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
10 35 7 14 0.9 3.4 3.7 2.2 2.6 2.8 2.9

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L

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Recent temperature and dissolved oxygen profile plots

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