Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
TA R10 WELS PISCATAQUIS 42 1 0.55 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
22 m
(72 ft)
10 m
(31 ft)
760 ha
(1,877 ac)
72,152,944 m3
(58,495 ac-ft)
52 km2
(20 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
1989 4.6 14 4 9.1 9.1 9.1 1 2.6 2.6 2.6
2011 4 6.6 6.6 6.7 1 1.9 2.0 2.2
2016 12 6.5 20 7.2 7 10.5 10.5 10.5 1 1.7 1.8 1.9

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
12 5.5 17 7.2 5 6.7 8.8 10 1 1.7 2.1 2.6

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-21
2011-09-01
2016-09-07
Depth (m) TEMP DO TEMP DO TEMP DO
0 19 9.5 22 8.2 22 8.9
1 18 9.1 21 8.2 22 8.9
2 18 9.2 21 8.2 22 8.9
3 18 9.2 20 8.2 22 8.9
4 18 9.2 20 8.2 21 8.8
5 18 9.1 20 8.1 21 8.8
6 18 9.1 20 8.1 21 8.8
7 18 9.1 20 8.1 21 8.7
8 17 9.1 20 8.1 21 8.5
9 17 8.7 19 7.3 21 8.3
10 17 8.5 16 5.6 21 8.2
11 17 8.1 14 5.2 20 7.8
12 15 7.1 13 5.1 18 5.5
13 14 6.0 12 5.0 16 4.0
14 13 5.5 12 5.0 14 4.1
15 12 4.7 11 4.8 14 4.0
16 11 4.5
17 11 4.3 11 4.7 13 3.5
18 11 4.2
19 11 3.9 11 4.6 13 3.2
20 11 4.5 13 2.9

Recent temperature and dissolved oxygen profile plots

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