Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
SOUTH BRISTOL LINCOLN 7 1 NA flushes/yr 10 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
3 m
(11 ft) 		1 m
(4 ft) 		13 ha
(31 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.

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
1988 1.60 1.8 2.1 6 3.3 3.3 3.3
1991 8.0 310 6.3 22 1.70 1.7 1.7 1 3.0 3.0 3.0
1995 1.90 1.9 2.1 3
1998 1.10 1.8 2.3 7
1999 11.5 197 49 1.25 1.7 2.5 6 13.0 13.0 13.0
2000 1.63 2.0 2.4 6
2001 6.0 76 7.0 1.13 1.5 1.8 6
2002 0.47 1.3 1.8 5
2003 75 13.0 246 35 88 1.28 1.5 2.0 5 6.1 6.1 6.1
2004 1.13 1.5 1.9 6
2005 0.83 1.8 2.2 6
2006 1.20 1.7 2.1 6
2007 75 9.0 100 7.0 25 1.85 2.1 2.4 5
2008 1.32 2.1 2.6 6
2009 1.80 2.0 2.1 2
2010 1.34 1.9 2.2 3
2011 1.95 2.0 2.2 3
2012 96 8.2 74 7.0 29 1.64 1.9 2.4 3
2013 1.20 1.7 2.1 5
2014 1.30 1.7 2.2 4
2015 0.90 1.5 2.0 5
2016 2.23 2.6 2.9 5 1
2017 1.37 1.9 2.5 5
2018 33 12.0 668 6.8 19 1.23 2.2 2.9 7 3.0 3.0 3.0

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
70 9.7 239 6.7 49 26 88 0.5 1.8 2.9 4.8 3 5.7 13

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1988-08-22
1991-08-27
1999-08-12
2001-08-23
2003-08-18
2018-09-13
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 16 6.7 21 7.1 25 8.1 24 6.0 27 6.5 22 8.5
1 16 7.0 20 7.0 22 7.0 22 5.8 25 6.4 20 8.2
2 14 0.4 21 0.2 21 3.8 20 0.2 20 0.1 20 6.1
3 12 0.2 15 0.9 13 0.2 14 0.1 20 0.4

Most recent temperature and dissolved oxygen profile plots

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