Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T09 R10 WELS PISCATAQUIS 56 1 9.43 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
9 m
(31 ft) 		4 m
(14 ft) 		169 ha
(417 ac) 		7,471,588 m3
(6,057 ac-ft) 		85 km2
(33 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 26 38 12 4.5 4.5 4.5 1 1.9 1.9 1.9
2001 22 58 6 8 6.0 6.0 6.0 1 1.6 1.8 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
24 48 9 8 4.5 5.3 6 1 1.6 1.9 2.1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-18
2001-08-23
Depth (m) TEMP DO TEMP DO
0 22 8.5 22 8.4
1 22 8.5 22 8.3
2 22 8.5 22 8.2
3 22 8.4 22 8.2
4 21 7.8 22 8.1
5 20 6.7 21 6.9
6 18 3.4 19 2.6
7 16 1.5 18 1.0
8 15 0.7 15 0.2

Recent temperature and dissolved oxygen profile plots

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