Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
WILTON FRANKLIN 19 1 0.4 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
23 m
(75 ft)
11 m
(37 ft)
127 ha
(314 ac)
14,237,806 m3
(11,543 ac-ft)
9 km2
(3.6 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
1974 7.6 7.6 7.6 1
1975 32 5.6 6.8 7.6 4
1976 5.5 7.3 10.1 6
1978 21 44 7.3 8.0 8.5 5
2011 8.0 9.1 10.4 3
2012 5 18 47 7.3 5 25 9.4 9.4 9.4 1 3.2 3.2 3.2

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
5 19 46 7.3 5 28 5.5 8 10 3.3 3.2 3.2 3.2

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1978-08-14
2012-09-13
Depth (m) TEMP DO TEMP DO
0 23.4 8.6 20.3 8.4
1 20.2 8.3
2 23.0 8.6 20.1 8.3
3 20.1 8.3
4 22.8 8.7 20.0 8.3
5 20.0 8.3
6 22.1 8.7 19.8 8.3
7 17.0 11.4 19.3 8.4
8 12.2 11.6 16.3 11.2
9 10.0 11.6 12.8 10.7
10 8.7 11.4 11.2 9.4
11 7.9 11.0 10.0 8.0
12 7.0 10.8 9.3 8.1
13 8.7 6.8
14 6.1 8.6 8.3 5.6
15 8.1 5.3
16 5.6 6.5
17 5.2 5.3 7.7 4.0
18
19 7.4 1.6
20
21 7.1 0.2

Recent temperature and dissolved oxygen profile plots

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