Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
CORINNA PENOBSCOT 32 1 11.11 flushes/yr 271 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
7 m
(23 ft)
3 m
(9 ft)
17 ha
(42 ac)
436,286 m3
(354 ac-ft)
2 km2
(0.9 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 2018 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
1980 38 2.1 3.3 4.2 6
1981 38 12 16 2.8 4.0 4.6 6 1.9 6.1 17.7
1983 43 84 2.3 2.3 2.3 1
1991 44 103 7.4 17 4.8 4.8 4.8 2 3.1 3.8 4.5
2001 43 113 7.6 11 30 5.0 5.0 5.0 1 8.7 8.7 8.7

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
42 78 7.5 20 30 2.1 3.9 5 3.2 1.9 6.2 18

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1991-08-27
2001-08-12
Depth (m) TEMP DO TEMP DO
0 21 8.2 27 7.7
1 21 8.2 26 7.9
2 21 7.8 25 7.6
3 20 7.5 25 7.4
4 20 6.2 21 6.0
5 20 2.8 17 7.4
6 18 1.0 13 1.1

Most recent temperature and dissolved oxygen profile plots

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