Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
DEXTER PENOBSCOT 32 1 6.21 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(27 ft) 		3 m
(9 ft) 		3 ha
(7 ac) 		85,158 m3
(69 ac-ft) 		1 km2
(0.4 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
1981 2.7 2.7 2.7 1
1982 46 131 31 20 1.2 1.5 1.9 5 17.7 17.9 18.2
1983 0.4 1.4 2.9 6
1984 0.8 1.2 3.0 3
2001 50 170 7.8 24 110 3.8 3.8 3.8 1 8.6 8.6 8.6

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
48 150 7.8 28 65 0.4 2.1 3.8 3.2 8.6 13 18

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-09-08
2001-08-15
Depth (m) TEMP DO TEMP DO
0 18.1 10.2 26.3 8.0
1 17.9 10.1 24.7 8.1
2 17.7 9.7 24.2 8.0
3 17.2 8.9 20.7 11.7
4 14.4 0.6 13.4 5.8
5 9.7 0.5 8.7 1.7
6 7.3 0.3 6.8 1.1
7 6.7 0.3 6.0 0.9

Recent temperature and dissolved oxygen profile plots

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