Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
LEBANON YORK 2 1 32.81 flushes/yr 415 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
17 m
(55 ft) 		5 m
(16 ft) 		90 ha
(222 ac) 		4,476,256 m3
(3,629 ac-ft) 		8 km2
(3 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 2018 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
1983 3.5 3.8 4.5 3
1985 7 54 5 9 7.7 7.7 7.7 1

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
7 54 5 9 3.5 5.8 7.7 2 Inf 1

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1985-09-13
Depth (m) TEMP DO
0 18.2 9.0
1 18.2 9.1
2 18.2 9.0
3 18.0 9.0
4 18.0 9.0
5 17.8 9.0
6 17.8 9.0
7 17.3 8.1
8 14.5 2.8
9 11.5 2.3
10 10.2 2.1
11 8.7 2.0
12 8.0 1.0
13 7.8 0.4
14 7.2 0.3
15 7.0 0.2

Most recent temperature and dissolved oxygen profile plots

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