Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
CHESTERVILLE FRANKLIN 20 1 17.54 flushes/yr 325 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
3 m
(10 ft) 		2 m
(7 ft) 		81 ha
(200 ac) 		1,650,722 m3
(1,338 ac-ft) 		46 km2
(18 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
1995 1.9 2.1 2.3 4
1996 1.8 2.1 2.4 5
1997 1.8 1.9 2.0 5
1998 17 52 21 2.7 2.8 2.8 1 1 5.6 5.6 5.6
2014 92 10 45 6.7 35 1.9 2.0 2.0 1 31.0 31.0 31.0

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
92 14 48 6.7 28 1.8 2.2 2.8 3.2 5.6 18 31

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1998-08-14
2014-08-21
Depth (m) TEMP DO TEMP DO
0 24 7.3 23 8.5
1 23 7.2 20 8.9
2 23 7.0 19 6.9
3 18 2.3

Most recent temperature and dissolved oxygen profile plots

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