Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
ELLSWORTH HANCOCK 23 1 2.76 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft) 		NA m
(NA ft) 		10 ha
(25 ac) 		750,000 m3
(608 ac-ft) 		3 km2
(1.3 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
1990 5.5 27 6.4 11 16 3 3.5 3.7 5 3.2 4.6 5.5

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
5.5 27 6.4 11 16 3 3.5 3.7 5 3.2 4.6 5.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1990-08-14
1990-09-18
Depth (m) TEMP DO TEMP DO
0 24 8.3 17 8.0
1 24 8.3
2 24 8.3 17 7.9
3 21 5.8 17 7.9
4 15 1.1 17 7.9
5 12 0.5 17 7.9
6 10 0.4 17 7.7

Recent temperature and dissolved oxygen profile plots

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