Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
KNOX WALDO 14 1 8.11 flushes/yr 291 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
7 m
(22 ft)
4 m
(12 ft)
15 ha
(37 ac)
535,541 m3
(434 ac-ft)
7 km2
(2.8 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 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
1999 4.7 5.4 6.0 5
2000 10.5 39 11 10 5.0 5.3 6.0 6 4.0 4.0 4.0
2001 5.2 5.6 6.1 5
2002 5.0 5.3 5.7 5
2003 4.2 4.9 5.5 6
2004 3.6 4.6 5.2 5
2005 26 7.8 42 7 5 14 4.5 4.7 5.2 2 7.4 7.4 7.4
2006 3.8 4.7 5.5 5
2007 5.0 5.3 6.0 5
2008 4.4 5.2 5.5 5
2009 4.8 5.0 5.2 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
26 9.2 40 7 8 12 3.6 5.1 6.1 4.6 4 5.7 7.4

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2000-08-10
2005-08-29
Depth (m) TEMP DO TEMP DO
0 24 8.3 23.0 8.0
1 24 8.3 22.9 8.0
2 24 8.2 22.9 8.0
3 20 6.7 20.0 8.8
4 17 5.0 14.1 4.4
5 13 0.3 11.0 0.8
6 12 0.1 9.4 0.6

Most recent temperature and dissolved oxygen profile plots

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