Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T03 R11 WELS PISCATAQUIS 50 1 1.22 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
41 m
(134 ft) 		9 m
(31 ft) 		492 ha
(1,215 ac) 		46,046,144 m3
(37,330 ac-ft) 		84 km2
(32 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 11 31 6 5.8 5.8 5.8 1 1.9 1.9 1.9
2001 9 32 7.2 6 5.0 5.0 5.0 1 2.9 2.9 2.9

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
10 32 7.2 6 5 5.4 5.8 1 1.9 2.4 2.9

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-13
2001-08-22
Depth (m) TEMP DO TEMP DO
0 20.1 9.8 22.0 8.5
1 19.9 9.6 21.7 8.5
2 21.4 8.5
3 18.6 9.6 21.3 8.4
4 21.2 8.3
5 17.4 9.6 21.2 8.2
6 21.2 8.2
7 16.6 9.0 21.0 8.2
8 19.9 7.2
9 16.0 8.8 17.5 6.1
10 15.8 6.0
11 15.8 8.7 14.0 6.1
12 12.2 6.4
13 15.0 8.1 11.3 6.7
14 10.7 6.8
15 12.0 7.7 10.2 6.9
16
17 9.8 7.0
18
19 9.2 7.2
20 10.0 6.3
21 9.0 7.1
22
23 8.6 7.1
24
25 9.2 6.2 8.2 7.2
26
27
28
29
30 9.0 6.2 8.1 7.1
31
32
33
34
35 9.0 6.2 8.0 7.0

Recent temperature and dissolved oxygen profile plots

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