Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
GREENE ANDROSCOGGIN 12 1 1.52 flushes/yr 243 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
6 m
(19 ft) 		3 m
(11 ft) 		796 ha
(1,966 ac) 		27,061,084 m3
(21,939 ac-ft) 		66 km2
(25 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
1979 15 74 0.6 1.0 1.9 3 7.6 63 239
1998 67 1.2 1.2 1.2 1
2002 45 50 1.8 2.1 2.4 2 14.1 14 14

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
15 70 45 50 0.6 1.5 2.4 2 7.6 38 239

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1979-08-02
1979-08-08
1979-08-15
1979-08-23
1979-08-30
2002-08-23
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 25 9.0 25 6.5 19 10.8 21 14 21 8.8
1 25 8.8 24 6.3 19 10.8 20 14 21 8.2 24 8.1
2 25 8.6 24 5.5 19 9.9 20 13 20 7.9 24 7.9
3 25 7.9 24 5.1 19 9.2 20 13 20 7.8 24 7.6
4 24 1.5 24 4.8 19 8.8 20 12 20 7.6 24 7.2
5 23 0.2 24 4.3 19 8.5 24 7.1

Most recent temperature and dissolved oxygen profile plots

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