Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
SEBAGO CUMBERLAND 4 1 0.15 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
96 m
(316 ft)
33 m
(109 ft)
11,944 ha
(29,514 ac)
3,977,000,000 m3
(3,224,206 ac-ft)
458 km2
(177 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
1977 4.1 7.4 9.6 10.5 3
1983 4 33 8.5 8.5 8.5 1
1990 8.7 8.7 8.7 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
4 33 4.1 7.4 8.9 10 1.7 Inf 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1983-09-09
Depth (m) TEMP DO
2 22.0 8.4
3
4
5
6 20.5 8.4
7
8
9 19.8 8.4
10 15.4 9.1
11 13.6 9.3
12
13
14 11.0 9.8
15 10.0 9.7
16
17
18 9.2 10.0
19
20
21 8.2 10.3
22
23
24
25
26
27 7.3 10.4
28
29
30 7.0 10.5
31
32
33
34
35 6.7 10.6
36
37
38
39
40
41
42
43
44
45 6.2 10.8
46
47
48
49
50 6.0 10.8
51
52
53
54
55 6.0 10.8
56
57
58
59
60 6.0 10.8
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75 6.0 10.8
76
77
78
79
80 5.8 10.8
81
82
83
84
85 5.8 10.8
86
87
88
89
90 5.5 10.4

Recent temperature and dissolved oxygen profile plots

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