Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T07 R08 WELS PENOBSCOT 57 1 0.65 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
21 m
(70 ft) 		6 m
(20 ft) 		326 ha
(805 ac) 		20,239,392 m3
(16,408 ac-ft) 		20 km2
(7.9 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
1985 9
1989 14 22 14 5.6 5.6 5.6 1 3.3 3.3 3.3
2001 16 41 7.4 4 7.8 7.8 7.8 1 2.6 2.6 2.6

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 32 7.4 9 5.6 6.7 7.8 1 2.6 3 3.3

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-12
2001-08-23
Depth (m) TEMP DO TEMP DO
0 20.0 9.4 22.4 8.7
1 20.1 9.4 22.2 8.7
2 20.0 9.3 22.1 8.7
3 22.0 8.7
4 19.9 9.3 22.0 8.7
5 18.0 8.7 22.0 8.7
6 17.1 8.5 22.0 8.6
7 16.9 8.2 15.2 4.6
8 16.0 6.9 12.0 4.7
9 12.0 4.4 10.0 5.1
10 10.0 4.4 8.1 5.4
11 8.4 4.4 7.0 5.6
12 7.6 4.4 6.8 5.4
13 7.2 4.1 6.2 5.2
14 6.2 5.1
15 7.0 3.8 6.0 4.9
16 6.0 4.6
17 6.9 3.4 5.8 4.6
18 6.9 2.6 6.8 4.4
19 6.8 4.4

Recent temperature and dissolved oxygen profile plots

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