Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T07 R09 WELS PISCATAQUIS 57 1 3.79 flushes/yr 755 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
16 m
(52 ft) 		6 m
(20 ft) 		267 ha
(659 ac) 		10,239,663 m3
(8,301 ac-ft) 		12 km2
(4.7 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 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
1990 20 6.6 18 22 15 17 2.6 3.5 4 5 4 5.6 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
20 6.6 18 22 15 17 2.6 3.5 4 5 4 5.6 8

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1990-08-17
1990-08-27
1990-09-11
Depth (m) TEMP DO TEMP DO TEMP DO
0 22.0 8.2 24.0 8.4 19 8.0
1
2 22.0 8.1 23.0 8.6 19 7.9
3
4 21.3 7.6 21.9 8.0 19 7.8
5
6 20.1 5.4 18.6 3.9 18 4.8
7
8 13.5 2.6 14.0 1.8 12 1.3
9
10 11.9 2.5 10.1 1.2 12 1.2
11
12 10.2 2.0 10.0 1.0 11 0.9
13
14 9.9 1.3 9.9 0.8 11 0.8
15 9.9 1.1 9.9 0.7 11 0.8
16 9.9 1.1 9.9 0.7 11 0.8

Most recent temperature and dissolved oxygen profile plots

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