Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T01 R08 WELS PENOBSCOT 51 1 0.74 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
26 m
(86 ft) 		7 m
(23 ft) 		3,194 ha
(7,892 ac) 		222,002,922 m3
(179,981 ac-ft) 		180 km2
(70 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
1989 7.2 21 4 6.7 6.7 6.7 1 2.0 2.0 2.0
2011 5 6.0 6.0 6.0 1 1.8 1.8 1.8

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
7.2 21 4.5 6 6.3 6.7 1 1.8 1.9 2

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-19
2011-08-15
Depth (m) TEMP DO TEMP DO
0 18 9.2 23 8.1
1 18 9.2 23 8.2
2 18 9.2 23 8.1
3 18 9.2 22 7.9
4 17 9.1 22 7.9
5 17 9.0 22 7.8
6 17 9.0 22 7.7
7 17 8.9 21 7.5
8 17 9.0 21 7.3
9 17 8.9 20 6.5
10 17 8.7 19 5.2
11 17 8.6 17 4.8
12 16 8.0 15 5.2
13 16 7.8 14 5.3
14 16 7.4 14 5.4
15 15 7.0 13 5.5
16 13 5.7
17 14 4.4 12 5.6
18 12 5.5
19 12 4.1 12 5.4
20 12 5.3
21 12 3.3 11 5.1
22 11 5.1
23 11 5.1
24 11 5.0
25 11 0.6

Recent temperature and dissolved oxygen profile plots

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