Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T08 R10 WELS PISCATAQUIS 56 1 1.37 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
38 m
(123 ft)
13 m
(43 ft)
655 ha
(1,618 ac)
85,216,992 m3
(69,087 ac-ft)
71 km2
(27 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 18 40 6 5.0 5.0 5.0 1 1.9 1.9 1.9
1996 17 48 14 13 6.2 6.2 6.2 1 1.3 1.3 1.3
2001 18 58 7.5 4 6.5 6.5 6.5 1 2.1 2.1 2.1

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
18 49 7.5 8 13 5 5.9 6.5 1 1.3 1.8 2.1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-18
1996-08-15
2001-08-23
Depth (m) TEMP DO TEMP DO TEMP DO
0 21.8 8.7 23.5 8.9 22.0 8.7
1 21.8 8.7 23.1 9.0 22.0 8.7
2 21.0 9.1 22.0 8.6
3 21.5 8.7 20.9 9.0 21.0 8.6
4 20.8 9.1 21.0 8.6
5 21.0 8.6 20.3 8.9 21.0 8.5
6 18.8 8.4 21.0 8.5
7 16.5 7.6 15.8 8.2 20.0 7.9
8 14.2 8.1 15.5 7.1
9 11.5 7.7 12.8 8.3 12.0 7.4
10 10.2 8.4 10.0 7.8
11 10.0 7.9 9.3 8.6 9.0 7.9
12 8.9 8.6 8.7 8.0
13 9.0 8.0 8.4 8.7 8.3 8.1
14 8.3 8.6 8.1 8.2
15 9.0 8.1 8.0 8.6 8.0 8.1
16 7.9 8.1
17 7.8 8.3
18 7.5 8.2
19 7.5 8.1
20 8.5 8.2 7.8 8.9 7.3 8.2
21 7.1 8.2
22 7.0 8.1
23 7.0 8.1
24 7.0 8.1
25 8.0 7.9 7.1 8.7 7.0 8.1
26 6.9 8.0
27 6.9 8.0
28 6.8 8.0
29 6.8 8.0
30 8.0 7.5 6.9 8.5 6.8 5.6
31
32
33
34
35 8.0 0.7 7.0 8.1

Recent temperature and dissolved oxygen profile plots

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