Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
POLAND ANDROSCOGGIN 5 1 1.9 flushes/yr 308 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
14 m
(46 ft) 		5 m
(17 ft) 		20 ha
(49 ac) 		1,026,690 m3
(832 ac-ft) 		4 km2
(1.5 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
2007 6.8 8 5.2 5.2 5.2 1 3.5 3.5 3.5
2008 31 21 161 7.3 10 88 6.6 6.6 6.6 1 2.8 2.8 2.8

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
31 21 161 7 9 88 5.2 5.9 6.6 1 2.8 3.1 3.5

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2008-08-27
Depth (m) TEMP DO
0 21.7 7.8
1 21.6 7.7
2 21.3 7.7
3 19.2 8.3
4 14.2 16.5
5 9.8 15.3
6 7.4 2.4
7 6.4 0.7
8 5.7 0.4
9 5.5 0.3
10 5.4 0.3
11 5.3 0.3
12 5.3 0.2
13 5.3 0.2
14 5.3 0.2

Most recent temperature and dissolved oxygen profile plots

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