Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T09 R11 WELS PISCATAQUIS 56 1 0.76 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
18 m
(60 ft) 		8 m
(26 ft) 		366 ha
(904 ac) 		28,543,376 m3
(23,140 ac-ft) 		15 km2
(5.7 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 34 51 6 5.1 5.1 5.1 1 2.2 2.2 2.2
1995
1996 30 68 7 6 6.3 6.3 6.3 1 2.5 2.5 2.5

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
32 60 6.5 6 5.1 5.7 6.3 1 2.2 2.4 2.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-18
1995-08-16
1996-08-27
Depth (m) TEMP DO TEMP DO TEMP DO
0 22.0 8.7 22 8.6 20.2 8.7
1 22.0 8.6 22 8.6 20.2 8.6
2 21.8 8.6 22 8.5 20.2 8.6
3 21.5 8.6 22 8.6 20.1 8.5
4 21.0 8.6 22 8.5 20.1 8.5
5 21.0 8.5 21 8.3 20.1 8.4
6 19.0 7.2 20 6.9 19.0 6.9
7 13.0 6.6 15 5.4 16.0 5.1
8 11.0 5.3 14.5 4.6
9 10.5 5.3 12.5 4.3
10 10.0 5.2 11.0 4.2
11 10.0 5.0 10.4 4.1
12 10.0 4.8 10.0 3.9
13 9.8 4.7 9.9 3.8
14 9.5 4.6 9.8 3.6
15 9.5 4.2 9.3 3.3
16 9.2 1.7

Recent temperature and dissolved oxygen profile plots

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