Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
CALAIS WASHINGTON 37 1 0.76 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
17 m
(56 ft) 		6 m
(19 ft) 		355 ha
(877 ac) 		20,546,778 m3
(16,658 ac-ft) 		18 km2
(6.8 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
1990 5.5 5.5 5.5 1
1991 9.0 29 6.8 5 6.0 6.0 6.0 1 2.4 2.4 2.4
1992 6.1 7.2 8.7 6
1993 5.2 6.8 8.3 6
1994 5.8 6.8 7.9 6
1995 6.8 8.1 9.5 6
1996 6.0 29 10 19 4.7 6.8 8.2 6 2.5 2.5 2.5
1997 5.7 7.0 8.2 6
1998 5.6 7.6 8.8 7
1999 6.0 7.8 8.9 6
2000 6.9 8.2 10.0 6
2001 8.0 8.6 9.9 6
2002 6.6 8.2 9.9 6
2003 7 9.0 28 3 18 6.8 7.8 8.9 8 1.2 1.2 1.2
2004 5.3 28 7.1 5.4 7.0 8.0 6 1.9 2.0 2.1
2005 6.0 7.4 8.2 7
2006 4 5.8 6.9 7.6 8
2007 10.0 6.7 3 5.9 7.7 9.0 7
2008 8 5.2 25 6.8 5 5.5 7.4 9.2 9
2009 5.1 6.6 7.5 7
2010 3 6.2 7.4 8.5 7
2011 2 4.4 6.8 8.0 6
2012 6.2 7.3 8.5 6
2013 21 5.4 22 6.9 4 4 5.3 6.0 6.6 5 2.5 2.5 2.5
2014 6.4 6.9 7.5 5
2015 6.3 7.0 8.2 4

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
12 7.1 27 6.8 5.5 3.5 18 4.4 7.2 10 5.9 1.2 2.1 2.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2003-08-20
2004-08-15
2004-09-13
2006-09-01
2007-08-01
2007-09-06
2008-08-18
2013-08-27
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23.8 8.3 22.1 8.0 18.5 8.1 21.0 8.7 26.3 7.7 22.2 8.7 22.4 8.6 25.1 8.1
1 23.7 8.3 22.1 8.0 18.5 8.1 21.0 8.7 21.5 8.7 22.4 8.3 22.5 8.4
2 23.7 8.3 22.0 7.9 18.5 8.1 20.0 8.7 25.9 7.4 20.9 8.7 22.4 8.2 22.3 8.3
3 23.7 8.3 22.0 7.9 18.4 8.1 19.7 8.7 25.8 7.1 20.2 8.7 22.2 8.0 22.2 8.3
4 23.3 8.4 22.0 7.8 18.4 8.0 19.6 8.6 20.0 8.7 22.0 8.1 22.1 8.2
5 22.8 8.3 21.5 7.6 18.4 8.0 19.5 8.6 22.2 7.8 19.9 8.7 22.0 8.1 21.1 7.6
6 20.5 8.4 20.1 7.6 18.4 8.0 19.5 8.5 19.1 6.7 19.8 8.6 21.9 8.2 17.3 5.5
7 15.7 8.0 18.6 6.6 14.5 2.2 19.5 8.5 19.7 8.6 20.5 7.5 14.2 4.7
8 12.9 8.0 15.0 6.5 11.7 0.5 15.8 2.7 14.9 6.3 19.0 7.9 16.8 5.1 12.3 4.3
9 11.4 5.5 13.4 3.3 11.2 0.5 13.0 2.5 11.7 5.8 13.3 3.8 14.8 4.4 11.1 4.6
10 10.6 4.7 12.2 2.7 11.0 0.2 11.9 1.7 11.8 2.6 13.3 2.7 10.5 4.7
11 10.2 4.0 11.6 2.3 9.8 0.2 11.4 1.5 10.8 5.4 11.0 2.6 12.6 2.3 10.1 4.3
12 10.0 3.8 11.2 2.2 9.8 0.8 11.3 1.5 10.1 4.9 10.6 2.5 11.7 2.3 9.9 3.9
13 9.7 3.6 11.0 1.8 9.5 0.4 10.8 1.4 10.0 2.0 11.1 1.7 9.5 4.0
14 9.0 1.3 10.0 0.8 9.5 0.0 10.0 0.1 8.9 2.8 9.3 0.1 10.1 0.1 8.9 2.5
15 8.6 0.6 9.4 0.6 9.0 0.0 9.6 0.1 8.4 1.4 9.1 0.1 9.7 0.1 8.6 1.7
16 8.5 0.4 9.2 0.6 9.6 0.0 9.6 0.1 8.9 0.1 9.5 0.1
17 8.3 0.3 9.0 0.4 9.0 0.0 9.4 0.1 8.2 0.2 8.8 0.1 9.3 0.1
18 8.8 0.0 9.3 0.1
19 9.3 0.0

Recent temperature and dissolved oxygen profile plots

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