Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
T02 R09 WELS PISCATAQUIS 51 1 2.32 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
16 m
(53 ft) 		5 m
(16 ft) 		153 ha
(378 ac) 		7,713,029 m3
(6,253 ac-ft) 		24 km2
(9.3 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 6 20 4 6.1 6.1 6.1 1 1.8 1.8 1.8

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
6 20 4 6.1 6.1 6.1 1 1.8 1.8 1.8

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 18.0 9.2
1 18.0 9.3
2 18.0 9.3
3 17.8 9.2
4 16.9 8.7
5 16.8 8.5
6 16.1 8.1
7 13.6 6.0
8 11.0 4.7
9 8.4 4.0
10 7.8 3.4
11 7.1 2.8
12 7.0 2.5
13 7.0 2.2
14 7.0 1.1

Recent temperature and dissolved oxygen profile plots

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