Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
BELGRADE KENNEBEC 12 1 0.46 flushes/yr 347 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
12 m
(38 ft) 		4 m
(14 ft) 		13 ha
(32 ac) 		544,317 m3
(441 ac-ft) 		0 km2
(0.2 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 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
1971
1984 3.2 3.8 4.7 6
1985 1 11 21 3.8 5.3 6.8 6
1986 3.0 4.9 6.0 4
1987 5.1 5.7 6.3 2
1988 12 50 4.5 6.0 6.6 5
1989 5.0 5.1 5.2 2

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
1 11 12 36 3 5.1 6.8 4.2 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
1985-08-30
1988-09-15
Depth (m) TEMP DO TEMP DO
0 35 8.3 17.0 9.3
1 35 8.3 17.0 9.3
2 35 8.4 17.0 9.3
3 34 8.4 17.0 9.3
4 34 8.4 17.0 9.3
5 34 8.2 17.0 9.2
6 30 1.6 17.0 9.2
7 23 0.5 17.0 8.9
8 20 0.5 9.5 0.8
9 18 0.4 7.9 0.5
10 17 0.3 6.5 0.4
11 17 0.3

Most recent temperature and dissolved oxygen profile plots

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