Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
VANCEBORO WASHINGTON 46 1 NA flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
16 m
(54 ft) 		6 m
(18 ft) 		6,968 ha
(17,219 ac) 		NA m3
(NA ac-ft) 		NA km2
(NA 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
1978 4.4 4.4 4.4 1
1981 9.0 40 7 5.6 5.6 5.6 1 4.4 4.4 4.4
1987 8
1990 13 0.8 1.3 2.2
1991 13.0 7.1 11 4.5 4.5 4.5 1 3.7 3.7 3.7
1992 4.0 4.2 5.0 3
1994 4.5 4.5 4.5 1
2002 25 12.0 36 6 7 4.7 4.7 4.7 1 6.2 6.2 6.2
2004 3.8 4.6 5.5 3 1
2005 9.7 33 6.9 9 8.7 4.6 6.3 7.2 4 1.7 2.6 3.3
2006 4.4 4.8 5.9 5
2007 4.3 5.4 5.8 3
2009 8 21 5.3 5.4 5.4 1 3.4 3.4 3.4
2011 6 14 6.2 6.2 6.2 1 4.4 4.4 4.4

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
25 11 36 7 8.4 13 8.7 3.8 5.1 7.2 2.1 0.8 3.7 6.2

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1981-08-20
1991-09-09
2002-08-22
2005-08-22
2009-08-26
2011-08-24
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 21 9.0 19 8.6 24 8.1 22 7.4 24 8.3 22 8.6
1 21 8.7 19 8.4 24 8.4 22 7.4 24 8.2 22 8.6
2 20 7.6 24 8.4 22 7.4 24 8.1 22 8.6
3 20 7.3 24 8.6 22 7.3 24 7.9 22 8.6
4 20 4.6 24 8.5 22 7.3 24 7.8 22 8.6
5 20 4.5 19 8.3 22 5.9 21 7.1 24 7.7 22 8.6
6 20 4.1 22 5.5 21 7.1 23 5.9 22 8.6
7 20 4.0 19 8.2 21 5.2 21 7.1 22 5.3 22 8.6
8 20 3.8 19 8.1 21 4.9 21 7.1 21 4.8 22 8.5
9 20 3.6 19 6.7 21 4.1 21 4.6 20 3.9 22 8.5
10 20 3.5 19 6.5 20 2.6 17 1.5 19 3.1 21 7.4
11 19 6.4 19 1.6 14 0.7 17 1.5 17 1.1
12 18 0.6 13 0.7 15 0.1 16 0.4
13 19 5.8 17 0.4 12 0.6 14 0.6 15 0.3
14 16 0.4 12 0.4 14 0.5 14 0.2
15 16 0.4 11 0.2 13 0.5
16 11 0.0

Recent temperature and dissolved oxygen profile plots

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