Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T07 R12 WELS PISCATAQUIS 56 1 0.44 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
16 m
(52 ft) 		6 m
(19 ft) 		489 ha
(1,208 ac) 		28,114,112 m3
(22,792 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 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
1982 9 21 7 10 6.0 6.0 6.0 1
1989 12 25 6 7.2 7.2 7.2 1 1 1 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
11 23 6.5 10 6 6.6 7.2 1 1 1 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-08-16
1989-08-18
Depth (m) TEMP DO TEMP DO
0 20 9.0 22 8.5
1 20 9.0 22 8.5
2 19 9.0 22 8.5
3 19 8.9 22 8.5
4 19 8.9 22 8.6
5 19 8.9 21 7.9
6 19 8.9 20 7.6
7 18 8.1 20 7.6
8 15 4.8 16 5.5
9 14 4.1 15 5.0
10 12 3.3 14 4.0
11 11 2.8 14 3.2
12 11 2.8 12 2.8
13 11 2.6 12 2.2
14 10 2.4 12 2.1
15 10 2.3 12 2.0
16 10 2.2

Recent temperature and dissolved oxygen profile plots

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