Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T01 R11 WELS PISCATAQUIS 42 1 7.61 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
27 m
(90 ft) 		9 m
(31 ft) 		94 ha
(232 ac) 		8,790,434 m3
(7,127 ac-ft) 		10 km2
(3.8 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
1973 2.7 2.7 2.7 1
1989 8.3 23 4 5.8 5.8 5.8 1 1.6 1.6 1.6
2000 5.0 5.0 5.0 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
8.3 23 4 2.7 4.5 5.8 1 1.6 1.6 1.6

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-19
Depth (m) TEMP DO
0 16.4 9.2
1 16.8 9.2
2 16.6 9.1
3 16.4 9.1
4 16.2 9.1
5 16.2 9.1
6 16.0 7.8
7 14.2 7.3
8 13.2 6.9
9 9.2 6.5
10 7.2 6.6
11 6.4 6.7
12 6.0 6.7
13 5.8 6.7
14 5.6 6.6
15 5.2 6.5
16
17 5.1 6.1
18
19 5.0 5.4
20
21 5.0 3.1
22
23 5.0 2.0

Recent temperature and dissolved oxygen profile plots

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