Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
WESTON AROOSTOOK 45 1 0.58 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
39 m
(128 ft) 		10 m
(31 ft) 		6,500 ha
(16,062 ac) 		616,000,000 m3
(499,399 ac-ft) 		355 km2
(137 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
1992 6.5 6.6 7.0 3
1993 6.8 7.4 8.1 4
1994 6.4 6.7 7.0 5
1997 4.3 6.2 7.6 3
2001 6.0 7.2 7.9 4
2005 12 38 7.2 7 7 7.3 8.8 8.9 9.0 1 1.5 1.7 1.9
2007 6.9 7.2 7.8 3
2008 5.7 6.0 6.4 2
2009 6 5.3 5.4 5.5 2

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
12 38 7.2 6.5 7 7.3 4.3 6.9 9 3 1.5 1.7 1.9

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2005-08-03
2005-08-28
Depth (m) TEMP DO TEMP DO
0 22 8.1 22 7.9
1 22 8.1 21 7.9
2 22 8.1 21 7.9
3 22 8.1 21 7.9
4 22 8.0 21 7.9
5 22 8.0 21 7.8
6 21 7.8 21 7.6
7 19 6.8 20 6.5
8 18 5.7 19 5.5
9 17 5.3 19 5.1
10 16 4.1 19 5.0
11 16 4.0 19 4.3
12 16 3.8 18 4.0
13 16 3.8 18 3.9

Recent temperature and dissolved oxygen profile plots

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