Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T10 R11 WELS PISCATAQUIS 56 1 0.22 flushes/yr 1196 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
26 m
(86 ft)
8 m
(27 ft)
252 ha
(623 ac)
19,988,784 m3
(16,205 ac-ft)
5 km2
(1.8 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
1989 17 29 4 9.0 9.0 9.0 1 0.3 0.3 0.3
1996 14 35 4 10 10.0 10.0 10.0 1 1.7 1.7 1.7
1999 13 35 4 11 8.7 8.7 8.7 1 1.9 1.9 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
15 33 4 10 8.7 9.2 10 1 0.3 1.3 1.9

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-18
1996-08-26
1999-08-13
Depth (m) TEMP DO TEMP DO TEMP DO
0 21.0 8.7 20.5 9.1 20.9 9.3
1 21.0 8.7 20.5 9.1 20.9 9.3
2 21.0 8.7 20.3 9.1 20.1 9.3
3 21.0 8.7 20.2 9.1 19.8 9.3
4 21.0 8.7 20.2 9.1 19.7 9.3
5 21.0 8.7 20.1 9.1 19.6 9.4
6 21.0 8.7 20.1 9.1 19.6 9.3
7 21.0 8.7 20.1 9.1 19.4 9.3
8 19.5 9.7 20.0 9.1 19.3 9.3
9 14.0 11.8 16.0 10.4 18.3 9.8
10 12.0 11.9 12.2 11.5 15.0 11.4
11 10.5 11.9 10.7 10.7 11.6 10.5
12 9.0 9.4 9.5 8.7 9.9 10.7
13 8.5 7.3 8.9 6.3 9.0 9.4
14 8.0 6.4 8.5 5.4 8.3 6.9
15 7.8 5.0 8.2 4.7 7.8 5.0
16 8.0 2.9 7.6 3.8
17 7.5 3.0 7.8 1.4 7.3 1.8
18 7.5 0.5 7.2 0.9
19 7.0 1.0 7.5 0.3 7.1 0.6
20 7.5 0.3 7.4 0.2 7.1 0.3

Most recent temperature and dissolved oxygen profile plots

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