Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T06 R10 WELS PISCATAQUIS 50 1 2.18 flushes/yr 891 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
13 m
(44 ft) 		6 m
(21 ft) 		200 ha
(494 ac) 		12,915,162 m3
(10,470 ac-ft) 		47 km2
(18 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 9.1 20 6 4.1 4.1 4.1 1 3.9 3.9 3.9
1996 9.0 32 7 12 5.0 5.0 5.0 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
9.1 26 6.5 12 4.1 4.5 5 1 2.1 3 3.9

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-12
1996-08-15
Depth (m) TEMP DO TEMP DO
0 19.2 9.1 22.0 8.7
1 19.1 9.1 22.0 8.5
2 19.0 9.1 22.0 8.5
3 19.0 9.0 22.0 8.5
4 19.0 9.0 21.6 8.4
5 18.9 8.9 20.0 7.7
6 18.8 8.8 17.9 6.4
7 18.0 8.7 17.2 6.1
8 17.0 8.1 14.2 5.5
9 14.6 2.8 11.0 4.6
10 13.8 2.1 9.0 3.6
11 9.8 0.5 8.2 3.3
12 7.0 1.3

Most recent temperature and dissolved oxygen profile plots

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