Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T07 R08 WELS PENOBSCOT 57 1 0.72 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
19 m
(62 ft) 		7 m
(24 ft) 		569 ha
(1,405 ac) 		40,720,112 m3
(33,012 ac-ft) 		28 km2
(11 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 14 25 12 5.3 5.3 5.3 1 4.2 4.2 4.2
1996 15 42 9 10 5.6 5.6 5.6 1 3.1 3.1 3.1

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
15 34 10 10 5.3 5.4 5.6 1 3.1 3.7 4.2

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-12
1996-08-27
Depth (m) TEMP DO TEMP DO
0 20 9.2 21.5 8.7
1 20 9.2 21.5 8.5
2 20 9.4 21.0 8.5
3 20 9.3 21.0 8.4
4 20 9.2 20.9 8.2
5 17 8.4 20.5 7.5
6 17 8.1 19.9 6.8
7 16 7.7 18.0 5.3
8 16 7.0 16.3 4.6
9 15 4.6 14.0 4.3
10 13 2.7 12.8 4.2
11 12 2.3 11.8 4.2
12 11 2.2 11.0 4.6
13 11 2.2 10.8 4.7
14 11 2.1 10.1 4.2
15 9.9 4.0
16 10 1.9 9.7 3.9
17 9.3 3.4
18 9.2 3.0

Recent temperature and dissolved oxygen profile plots

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