Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
BRIDGTON CUMBERLAND 4 1 46.2 flushes/yr 414 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
3 m
(10 ft) 		2 m
(5 ft) 		12 ha
(30 ac) 		182,108 m3
(148 ac-ft) 		9 km2
(3.3 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
2000 53 9.5 49 6.1 15 2.8 3.0 3.2 2 1 4.3 4.3 4.3
2001 37 12.0 49 6.6 17 2.4 2.4 2.4 1 8.7 8.7 8.7
2002 50 8.0 46 6.5 18 3.0 3.0 3.0 1 3.5 3.5 3.5
2003 55 8.0 40 6.4 11 3.0 3.0 3.0 1 4.1 4.1 4.1
2004 40 8.0 40 6.6 13 2.8 2.8 2.8 1 4.1 4.1 4.1
2005 33 9.0 38 6.4 13 2.9 2.9 2.9 1 4.0 4.0 4.0
2006 55 7.0 31 6.4 10 2.8 2.8 2.8 1 2.8 2.8 2.8
2007 25 7.0 29 6.5 13 3.1 3.1 3.1 1 1 4.8 4.8 4.8
2008 50 8.0 27 11 3.4 3.4 3.4 1 1.3 1.3 1.3
2009 40 9.0 31 6.4 12 3.0 3.0 3.0 1 2.4 2.4 2.4
2010 39 12.0 34 6.5 13 2.9 2.9 2.9 1 4.0 4.0 4.0
2011 19 12.0 41 6.5 14 3.0 3.0 3.0 1 1 4.7 4.7 4.7
2012 54 9.0 40 6.1 17 2.8 2.8 2.8 1 7.0 7.0 7.0
2013 48 7.2 36 6.3 9 3.2 3.2 3.2 1 1 2.1 2.1 2.1
2014 96 8.0 39 6.3 12 2.9 2.9 2.9 1 1.4 1.4 1.4
2015 79 10.0 46 6.5 11 2.9 2.9 2.9 1 1 3.6 3.6 3.6
2016 30 11.0 41 6.6 15 3.0 3.0 3.0 1 1 5.1 5.1 5.1
2017 85 10.0 38 6.6 14 2.6 2.6 2.6 1 3.8 3.8 3.8
2018 50 9.5 52 6.7 12 3.1 3.1 1 5.0 5.0 5.0

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
49 9.2 39 6.4 13 12 2.4 2.9 3.4 1.1 1.3 4 8.7

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2011-08-12
2012-08-08
2013-08-26
2014-08-11
2015-08-11
2016-08-22
2017-08-14
2018-08-17
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24 5.7 26 4.8 22 6.4 25 6.1 23 6.4 25 6.7 24 5.8 25 5.1
1 23 5.6 25 4.2 21 3.9 22 3.7 23 6.4 25 6.7 23 5.5 25 5.4
2 23 5.0 21 0.1 19 1.3 20 0.8 21 0.9 24 3.8 21 0.4 24 4.4
3 20 0.6 17 0.1 16 0.0 22 0.6

Most recent temperature and dissolved oxygen profile plots

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