Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T02 R09 WELS PISCATAQUIS 51 1 2.13 flushes/yr 570 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft) 		NA m
(NA ft) 		8 ha
(19 ac) 		570,000 m3
(462 ac-ft) 		1 km2
(0.5 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
1986 1.4 1.4 1.5 2 5 2.5 3.4 5.6
1987 1.0 1.1 1.2 5 8 1.8 3.7 5.5
1988 1.0 1.0 1.2 6 11
1989 1.0 1.1 1.2 5 11
1990 0.9 1.1 1.2 5 11
1991 1.1 1.1 1.1 2 3
1993 1.0 1.4 1.8 5 10
1994 1.1 1.1 1.2 5 10
1995 1.0 1.1 1.2 5 11
1996 2.0 2.2 2.3 4
1997 2.2 2.2 2.3 5 6
1998 1.9 2.1 2.3 5 8
1999 4.5 16 11 1.3 1.3 1.3 1 1 5.6 5.6 5.6

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
4.5 16 11 0.9 1.4 2.3 4.2 1.8 4.2 5.6

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1999-08-12
Depth (m) TEMP DO
0 21 9.2
1 20 9.3

Most recent temperature and dissolved oxygen profile plots

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