Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
AUGUSTA KENNEBEC 13 1 3.24 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
10 m
(33 ft) 		3 m
(10 ft) 		72 ha
(178 ac) 		2,336,188 m3
(1,894 ac-ft) 		13 km2
(5.1 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
1976 28 2.3 3.2 4.0 6 3.5 9.0 16.7
1977 6.0 6.0 6.0
1978 10
1979 12 70 12 20 2.2 3.0 4.3 9 2.4 5.5 16.5
1980 11 65 1.6 3.0 4.5 10 2.5 9.7 23.5
1981 62 3.8 3.8 3.8 1
1984 2.4 2.4 2.4 1
1985 11 15 110 1.8 2.1 2.4 2
1986 22 37 2.6 3.4 4.7 7 3.2 5.3 9.1
1987 20 70 18 17 120 2.7 3.3 4.0 5 3.5 5.6 9.7
1988 31 81 1.1 1.3 1.5 2 22.5 23.7 24.9
1989 51 30 23 2.2 3.3 4.1 5 0.7 6.7 19.7
1990 41 1.2 2.9 4.4 4 6.3 14.3 28.7
1991 15 53 6.9 20 23 2.2 3.3 4.7 6 3.5 9.5 23.1
1992 20 2.9 3.7 4.4 5 5.2 8.9 13.7
1994 8 30 3.5 3.5 3.5 1 9.0 9.0 9.0
1998 14 48 15 109 3.1 3.2 3.2 1 11.0 11.0 11.0
2000 14 54 18 32 3.1 3.1 3.2 2 6.3 6.6 7.0
2001 14 62 7.3 15 122 21 3.2 3.8 4.6 4 6.7 8.9 11.7
2002 22 31 2.7 3.2 3.9 5 12.5 20.0 32.3
2003 26 15 67 12 35 2.0 3.0 4.0 5 12.0 12.0 12.0
2004 19 24 2.5 3.1 3.8 4 3.3 4.8 6.3
2005 28 14 64 7.3 18 46 3.3 3.4 3.4 2 15.4 15.7 16.0
2006 49 14 60 7.2 16 52 3.5 3.5 3.5 1 5.1 5.1 5.1
2007 3.2 3.6 3.9 3
2008 10
2009 2.7 2.8 3.0 1
2011 2.8 2.9 3.0 1
2014 38 24 66 7.6 13 96 4.5 4.5 4.5 1 8.3 8.3 8.3
2015 4.4 4.4 4.4 1

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
35 15 61 7.2 19 12 70 33 1.1 3.2 4.7 3.5 0.7 9.8 32

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2002-08-27
2002-09-13
2002-09-26
2003-08-14
2005-08-10
2006-08-10
2011-09-30
2014-08-26
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 23.8 7.5 20.0 7.7 20.0 8.3 26.0 9.1 28 8.4 25 7.1 19 8.6 25.8 8.6
1 23.8 7.5 20.0 7.7 19.9 8.1 26.0 9.1 28 8.3 25 7.1 19 8.6 25.6 8.7
2 23.5 7.1 20.0 7.6 19.8 8.2 26.0 9.1 26 8.4 24 6.7 19 8.5 23.5 9.3
3 23.1 6.8 19.9 7.7 19.7 8.0 24.8 9.2 24 6.3 23 5.1 19 8.4 21.6 6.0
4 20.3 2.4 19.9 7.7 19.2 6.2 20.5 1.3 17 0.7 19 0.8 18 6.3 19.4 1.5
5 15.8 0.2 17.8 0.4 18.3 2.8 16.6 1.0 13 0.4 15 0.2 18 4.2 16.0 0.6
6 12.9 0.1 13.3 0.2 14.4 0.2 12.5 0.2 12 0.4 13 0.2 17 2.2 12.4 0.5
7 11.6 0.1 11.4 0.2 11.8 0.2 10.0 0.1 11 0.4 12 0.1 10.2 0.5
8 10.6 0.1 10.5 0.2 10.5 0.2 9.5 0.1 11 0.4 11 0.1 9.1 0.5
9 10.2 0.1 10.1 0.2 10.0 0.2 10 0.4 8.7 0.5
10 9.7 0.1 9.7 0.1 9.6 0.1 10 0.2 8.5 0.4

Recent temperature and dissolved oxygen profile plots

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