Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T06 R15 WELS PISCATAQUIS 49 1 3.04 flushes/yr 1027 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
14 m
(45 ft) 		4 m
(14 ft) 		543 ha
(1,341 ac) 		23,766,688 m3
(19,268 ac-ft) 		24 km2
(9.1 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 18 28 8 4.2 4.2 4.2 1 1.9 1.9 1.9
1996 10 29 7 19 3.2 3.2 3.2
1999 3.3 3.5 3.6 2
2001 9 33 7.2 6 4.6 4.6 4.6 1 2.8 2.8 2.8

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 30 7.2 7 19 3.3 4.1 4.7 1.3 1.9 2.6 3.2

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-17
1996-08-15
2001-08-16
Depth (m) TEMP DO TEMP DO TEMP DO
0 21 8.8 22 8.6 23 8.1
1 21 8.8 21 8.4 23 8.1
2 21 8.8 21 8.2 23 8.1
3 21 8.7 21 8.1 23 8.1
4 21 8.2 21 8.1 22 7.4
5 20 5.8 19 4.9 21 5.7
6 19 4.2 18 4.2 20 2.8
7 18 0.9 18 3.9
8 18 3.1
9 17 2.4
10 17 2.2
11 16 1.8

Most recent temperature and dissolved oxygen profile plots

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