Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T07 R11 WELS PISCATAQUIS 56 1 0.32 flushes/yr 965 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
19 m
(61 ft)
8 m
(28 ft)
370 ha
(914 ac)
31,698,832 m3
(25,699 ac-ft)
16 km2
(6 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 38 5 8.5 8.5 8.5 1 1.1 1.1 1.1
1990 6.5 6.5 6.5 1 2.2 2.2 2.2
1996 18 48 9 13 9.0 9.0 9.0 1 1.2 1.2 1.2

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
18 43 7 13 6.5 8 9 1 1.1 1.5 2.2

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-08-18
1990-08-22
1996-08-15
Depth (m) TEMP DO TEMP DO TEMP DO
0 22 8.9 22.8 8.9
1 22 8.9 24 7.4 22.8 8.9
2 22 8.9 23 7.9 22.1 9.0
3 22 8.9 22 8.5 22.0 9.0
4 22 8.9 22 9.0 21.8 9.0
5 22 8.9 21 8.7 21.5 9.0
6 22 8.9 21 8.9 19.5 9.4
7 21 8.5 21 8.9 18.5 8.6
8 20 8.2 20 8.9 17.7 7.6
9 15 6.3 20 8.9 16.2 6.0
10 14 5.2 14.8 4.6
11 12 4.0 13.0 3.5
12 10 3.4 12.1 3.5
13 11 2.6 10.9 3.4
14 11 2.1 10.1 3.0
15 11 2.0 9.9 2.9
16 11 1.8 9.8 2.8

Most recent temperature and dissolved oxygen profile plots

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