Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LEWISTON ANDROSCOGGIN 12 1 NA flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft)
NA m
(NA ft)
NA ha
(NA ac)
NA m3
(NA ac-ft)
NA km2
(NA 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
2002 59.5 7.7 28 1.20 1.20 1.20 2 2 1.5 2.4 3.4
2003 94.2 135 7.6 28 1.05 1.23 1.35 3 3 3.0 4.4 5.5
2004 82.8 7.8 29 1.25 1.35 1.42 3 3 1.2 1.9 2.4
2005 7.6 34 1.25 1.32 1.40 2 2 2.0 5.0 8.0
2006 103.0 8.6 54 0.73 1.18 1.45 3 2 2.1 28.9 98.0
2007 109.0 7.2 104 0.55 1.13 1.40 5 3 3.1 26.2 69.0
2008 67.5 7.2 48 0.75 1.13 1.32 5 2 6.3 36.2 130.0
2009 85.0 7.1 50 0.75 0.91 1.05 3 12.0 22.7 31.0
2010 88 0.65 0.73 0.82 2 31.0 34.0 37.0
2011 102.0 470 83 0.55 0.68 0.82 2 13.0 35.0 57.0
2012 12 92.8 375 7.9 78 0.75 0.81 0.88 2 29.0 30.0 31.0
2013 8.3 65 73 0.75 0.75 0.75 2 21.0 21.0 21.0
2014 89 0.50 0.50 0.50 1 120.0 120.0 120.0

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
12 80 327 7.5 65 60 0.5 1 1.4 2.7 1.2 28 130

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2008-09-11
2009-08-17
2010-08-18
2011-08-09
2012-08-01
2012-09-10
2013-08-19
2014-08-01
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 21 15 26 7.9 25 10.7 26 9.7 25 6.9 22 7.5 26 11 23 13
1 19 14 26 7.0 24 9.6 24 5.6 24 5.6 21 6.5 23 11 22 7
2 22 9

Recent temperature and dissolved oxygen profile plots

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