Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
CHESTERVILLE FRANKLIN 20 1 1.19 flushes/yr 346 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft) 		NA m
(NA ft) 		22 ha
(54 ac) 		1,626,000 m3
(1,318 ac-ft) 		2 km2
(0.6 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
1990 7.5 32 7.1 12 3.3 4.0 4.7 6 1 4.5 4.5 4.5
1991 3.8 4.3 4.8 5
1992 3.5 4.7 5.2 5
1993 3.7 4.2 4.8 5
1994 9.0 15 3.8 4.4 4.9 6 3.1 3.1 3.1
1995 3.5 4.2 5.2 5
1996 3.0 3.5 3.9 5
1997 3.2 3.9 4.4 5
1998 3.4 4.2 4.5 5
1999 3.0 3.8 4.5 5
2000 10.0 35 26 3.2 3.5 3.8 7 4.7 4.7 4.7
2001 4.3 4.6 5.1 5
2002 4.1 4.3 4.6 4
2003 3.8 4.6 6.0 5
2004 3.5 4.3 4.8 5
2005 15 8.6 35 7.2 11 4.2 4.5 4.8 5 3
2006 13 4.2 4.4 4.7 5
2007 13 3.2 4.1 4.5 5
2008 12 3.0 3.7 4.7 8
2009 7 2.8 3.9 4.8 10
2010 14 12 3.7 4.4 5.1 10 5 4.9 4.9 4.9
2011 10 4.0 4.3 4.9 9
2012 9 3.4 4.2 5.1 12 6
2013 8 3.3 4.3 4.9 8 2
2014 15 13.0 35 7.3 17 9 2.4 3.3 4.5 8 5.2 5.2 5.2
2015 7 4.3 4.7 5.1 11 20
2016 3.2 4.4 5.0 9 11
2017 14 4.5 4.7 4.9 9 15
2018 13 3.8 4.3 4.8 5 7

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 9.6 34 7.2 17 11 2.4 4.2 6 6.6 3.1 4.5 5.2

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1990-09-10
2000-08-23
2010-08-18
2014-08-11
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 20 8.0 22 8.4 24 7.5 26 8.6
1 20 7.9 22 8.5 24 7.5 25 8.7
2 20 7.9 22 8.4 24 7.4 24 8.9
3 20 7.6 21 8.3 24 7.1 23 8.2
4 20 7.6 21 7.5 23 6.4 23 4.2

Most recent temperature and dissolved oxygen profile plots

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