Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
ALEXANDER WASHINGTON 36 1 0.78 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
11 m
(36 ft) 		5 m
(17 ft) 		140 ha
(346 ac) 		7,353,291 m3
(5,961 ac-ft) 		8 km2
(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
1977 9 4.6 6.4 8.4 6
1978 38 8 6.2 7.7 8.5 3
1979 8.0 28 8 6.4 6.4 6.4 1 2.2 2.2 2.2
1984 6.0 6.3 6.5 3 3
2002 6.5 6.9 7.7 5 8
2003 5 7.5 48 4 8.3 8.3 8.3 1 1.3 1.3 1.3

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
5 7.8 38 7 8 4.6 7 8.5 3.2 1.3 1.8 2.2

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1979-09-18
2003-08-20
Depth (m) TEMP DO TEMP DO
0 18 9.1 24 8.2
1 24 8.2
2 18 9.1 23 8.3
3 23 8.2
4 18 9.0 23 8.2
5 23 8.2
6 18 9.0 21 8.2
7 18 7.8
8 18 8.9 15 4.3
9 13 2.8
10 18 8.8
11 14 0.8
12 12 0.5

Recent temperature and dissolved oxygen profile plots

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