Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
ORLAND HANCOCK 23 1 1.82 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
4 m
(14 ft) 		3 m
(9 ft) 		63 ha
(156 ac) 		1,643,134 m3
(1,332 ac-ft) 		5 km2
(1.8 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
2010 10 4.1 4.1 4.1 1 2.9 2.9 2.9
2016 7 6 26 6.9 9 3.7 3.7 3.7 1 3.1 3.1 3.1

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
7 6 26 6.9 9.5 3.7 3.9 4.1 1 2.9 3 3.1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2010-08-17
2016-08-31
Depth (m) TEMP DO TEMP DO
0 24 8.1 23 8.5
1 24 8.1 23 8.5
2 23 8.1 23 8.5
3 23 8.2 23 8.4
4 23 8.2 23 8.4

Recent temperature and dissolved oxygen profile plots

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