Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
BELGRADE KENNEBEC 12 1 1.59 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
34 m
(113 ft) 		10 m
(31 ft) 		1,418 ha
(3,505 ac) 		136,209,103 m3
(110,427 ac-ft) 		119 km2
(46 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
1991 8 4.2 4.2 4.2 1
1996 3.8 4.4 5.0 4
1997 5.8 5.8 5.8 1
1998 4.2 4.2 4.2 1
1999 4.9 4.9 4.9 1
2000 6.2 6.4 6.5 2
2001 4.6 5.5 6.6 5
2002 5.0 5.6 6.1 4
2005 4.1 4.1 4.2 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
8 3.8 5 6.6 2.2 Inf 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1991-08-28
1999-09-09
2000-09-20
Depth (m) TEMP DO TEMP DO TEMP DO
0 22 8.6 24 8.1 20 8.7
1 22 8.6 24 8.1 20 8.7
2 22 8.6 24 8.1 19 8.7
3 21 8.4 24 8.1 19 8.7
4 21 8.3 24 8.0 19 8.4
5 21 8.3 24 8.0 19 8.3
6 21 8.3 24 7.9 19 8.2
7 21 8.2 24 7.9 19 8.2
8 21 8.1 24 7.8 19 8.0
9 21 7.9 24 7.7 19 8.0
10 21 7.6 23 5.4 18 7.9
11 20 7.2 18 7.7
12 20 4.0
13 18 0.2

Recent temperature and dissolved oxygen profile plots

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