Processing math: 100%

Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
DEXTER PENOBSCOT 32 1 6.21 flushes/yr 292 ft
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.

Water Chemistry and Trophic State Parameters

Table Legend:

Color: Color (SPU), Alk: Alkalinity (mg/l CaCO3), SpCon: Specific Conductivity (μS/cm), pH: pH (standard units)

TP = Total Phosphorus (μg/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 (μg/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
2018 11 64 153 7.8 20 112 4.1 4.3 4.4 2 4.0 5.5 7.0

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
11 53 151 7.8 25 80 0.4 2.5 4.4 3 4 11 18

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-09-08
2001-08-15
2018-08-23
Depth (m) TEMP DO TEMP DO TEMP DO
0 18.1 10.2 26.3 8.0 24.3 8.3
1 17.9 10.1 24.7 8.1 24.2 8.5
2 17.7 9.7 24.2 8.0 23.7 8.3
3 17.2 8.9 20.7 11.7 23.4 8.2
4 14.4 0.6 13.4 5.8 19.6 6.5
5 9.7 0.5 8.7 1.7 13.5 1.5
6 7.3 0.3 6.8 1.1 9.3 0.3
7 6.7 0.3 6.0 0.9 8.0 0.3

Most recent temperature and dissolved oxygen profile plots

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