Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
VIENNA KENNEBEC 20 1 1.43 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
7 m
(22 ft) 		3 m
(9 ft) 		14 ha
(35 ac) 		396,364 m3
(321 ac-ft) 		1 km2
(0.4 mi2)

Secchi Disk Transparency Graphs

Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.

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
2008 12 7.0 10 4.2 4.2 4.3 1 6.5 6.5 6.5
2012 8 4.2 4.8 5.6 6
2013 3.2 4.3 5.0 6
2014 30 14 34 7.2 7 4.5 5.3 6.1 8 3.0 3.0 3.0
2015 4.1 4.8 5.6 3
2016 3.8 4.8 5.6 8
2017 3.7 5.0 6.1 9

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
30 13 34 7.1 8.5 8 3.2 4.7 6.1 5.9 3 4.8 6.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2008-08-24
2014-09-03
2016-08-11
2017-08-30
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 24 8.1 24 8.2 25 7.7 21 8.5
1 24 8.1 24 8.2 25 7.7 22 8.4
2 23 8.5 24 8.1 25 7.7 22 8.4
3 22 8.2 23 8.0 25 7.6 22 8.3
4 20 5.8 20 9.0 24 7.4 21 8.2
5 16 4.4 15 2.5 18 3.4 15 3.5
6 12 0.1 12 0.7 18 3.1 11 0.2

Recent temperature and dissolved oxygen profile plots

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