Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
EMBDEN SOMERSET 30 1 0.89 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
32 m
(106 ft) 		6 m
(18 ft) 		128 ha
(316 ac) 		7,149,906 m3
(5,797 ac-ft) 		11 km2
(4.3 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 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
1986 6.8 6.8 6.8 1
2011 4.7 5.8 6.5 3
2012 11 6.5 22 7 5 19 4.6 6.0 7.2 4 3.6 3.6 3.6
2013 5.3 6.7 8.2 7
2014 6.7 7.2 7.8 4

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
11 6.5 22 7 5 19 4.6 6.5 8.2 3.8 3.6 3.6 3.6

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2012-09-17
Depth (m) TEMP DO
0 19.3 7.6
1 19.4 7.5
2 19.3 7.5
3 19.3 7.5
4 19.3 7.4
5 19.3 7.5
6 19.2 7.4
7 18.6 6.6
8 14.1 2.6
9 12.2 2.8
10 10.7 2.8
11 9.7 3.7
12 9.2 3.5
13 8.9 3.4
14 8.6 4.0
15 8.4 4.0
16
17 8.0 4.5
18
19 7.5 4.5
20
21 7.0 4.4
22
23 6.6 4.0
24
25 6.4 3.6
26
27
28
29
30 6.0 1.9

Recent temperature and dissolved oxygen profile plots

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