Data period: through 2018
Town | County | Delorme Map # | True Basin | Flushing Rate | Elevation |
---|---|---|---|---|---|
ACTON | YORK | 2 | 1 | 0.47 flushes/yr | 522 ft |
Maximum Depth | Average Depth | Surface Area | Lake Volume | Drainage Area |
---|---|---|---|---|
13 m (44 ft) |
6 m (21 ft) |
340 ha (840 ac) |
22,169,177 m3 (17,973 ac-ft) |
15 km2 (5.9 mi2) |
Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.
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 | 9.0 | 47 | 9 | 7.7 | 7.2 | 7.9 | 8.6 | 2 | 3.5 | 3.5 | 3.5 | |||||
1982 | 9.0 | 44 | 9 | 6.5 | 6.6 | 6.8 | 2 | 2.0 | 2.0 | 2.0 | ||||||
1983 | 55 | 14 | 9.0 | 5 | 5.5 | 6.8 | 8.2 | 6 | 1.9 | 3.4 | 7.3 | |||||
1984 | 8.0 | 4.2 | 6.3 | 8.2 | 8 | |||||||||||
1985 | 4.2 | 6.2 | 8.8 | 8 | ||||||||||||
1986 | 8.0 | 25 | 4 | 7 | 5.0 | 6.4 | 9.1 | 9 | ||||||||
1987 | 5.1 | 6.2 | 8.1 | 5 | ||||||||||||
1988 | 18 | 4.0 | 5.3 | 6.7 | 7 | |||||||||||
1989 | 4.2 | 5.1 | 6.5 | 8 | ||||||||||||
1990 | 6.8 | 4.7 | 5.6 | 8.0 | 9 | |||||||||||
1991 | 22.5 | 37 | 7.0 | 8 | 4.5 | 6.0 | 7.5 | 9 | ||||||||
1992 | 12.0 | 40 | 7.2 | 7 | 11 | 5.5 | 6.7 | 7.8 | 6 | 1.0 | 2.2 | 3.3 | ||||
1993 | 5.0 | 6.2 | 7.8 | 6 | ||||||||||||
1994 | 4.1 | 5.1 | 6.5 | 4 | ||||||||||||
1995 | 4.9 | 6.2 | 7.1 | 4 | ||||||||||||
1998 | 9.5 | 41 | 9 | 8 | 5.1 | 5.8 | 6.4 | 1 | 2.7 | 2.7 | 2.7 | |||||
2005 | 6.2 | 7.3 | 7.8 | 5 | ||||||||||||
2006 | 5.4 | 6.1 | 6.9 | 5 | ||||||||||||
2007 | 6.7 | 7.3 | 8.1 | 6 | ||||||||||||
2008 | 10 | 7.0 | 49 | 7.0 | 7.0 | 6.3 | 6.9 | 8.0 | 6 | |||||||
2009 | 5.5 | 6.8 | 9.5 | 6 | ||||||||||||
2010 | 6.6 | 7.1 | 7.8 | 4 | ||||||||||||
2011 | 5.4 | 6.4 | 7.6 | 6 | ||||||||||||
2013 | 8 | 7.9 | 54 | 7.2 | 5 | 7 | 7.2 | 7.2 | 7.2 | 1 | 2.3 | 2.3 | 2.3 | |||
2014 | 6.3 | 7.4 | 8.4 | 5 | ||||||||||||
2015 | 6.6 | 7.9 | 9.1 | 6 | ||||||||||||
2016 | 4.5 | 6.4 | 7.6 | 8.7 | 5 | |||||||||||
2017 | 6 | 9.0 | 83 | 7.1 | 6 | 5.0 | 9 | 7.3 | 7.3 | 7.3 | 1 | 2.6 | 2.6 | 2.6 | ||
2018 | 5.0 | 5.8 | 7.6 | 8.6 | 6 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
8 | 10 | 48 | 7 | 8.8 | 6.1 | 8 | 7.7 | 4 | 6.6 | 9.5 | 5.4 | 1 | 2.7 | 7.3 |
Depth (m) | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO | TEMP | DO |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 23 | 9.4 | 20.2 | 9.1 | 24 | 9.7 | 21 | 11.5 | 26 | 8.1 | 23 | 8.3 | 26 | 7.7 | 21 | 8.7 |
1 | 23 | 9.4 | 20.2 | 9.0 | 24 | 9.7 | 21 | 11.5 | 25 | 8.1 | 23 | 8.2 | 26 | 7.8 | 21 | 8.7 |
2 | 22 | 9.6 | 20.2 | 9.0 | 24 | 9.5 | 21 | 11.3 | 25 | 8.2 | 23 | 8.2 | 26 | 7.7 | 20 | 8.8 |
3 | 22 | 9.7 | 20.2 | 9.0 | 24 | 9.6 | 20 | 11.5 | 24 | 8.1 | 23 | 8.3 | 25 | 7.7 | 20 | 8.8 |
4 | 22 | 9.6 | 20.1 | 9.0 | 22 | 9.6 | 20 | 11.4 | 24 | 8.1 | 23 | 8.4 | 25 | 7.7 | 20 | 8.8 |
5 | 22 | 9.4 | 20.1 | 9.0 | 22 | 9.6 | 20 | 10.6 | 24 | 7.9 | 23 | 8.3 | 25 | 7.7 | 20 | 8.9 |
6 | 21 | 9.1 | 20.1 | 9.0 | 21 | 9.4 | 20 | 10.7 | 22 | 6.7 | 22 | 8.3 | 25 | 7.7 | 20 | 8.8 |
7 | 20 | 8.9 | 20.1 | 9.0 | 21 | 9.1 | 20 | 10.6 | 18 | 4.0 | 21 | 7.1 | 23 | 7.9 | 20 | 8.7 |
8 | 20 | 6.6 | 20.0 | 9.0 | 19 | 6.8 | 19 | 8.5 | 16 | 2.6 | 17 | 4.9 | 20 | 8.4 | 19 | 8.4 |
9 | 14 | 3.7 | 12.0 | 5.6 | 16 | 3.4 | 17 | 3.4 | 15 | 1.6 | 15 | 2.3 | 16 | 7.2 | 17 | 4.1 |
10 | 14 | 0.7 | 11.0 | 3.4 | 15 | 0.5 | 16 | 0.5 | 14 | 0.1 | 13 | 0.2 | 14 | 3.7 | 13 | 2.8 |
11 | 10.1 | 1.0 | 12 | 0.9 | 12 | 1.9 | ||||||||||
12 | 9.6 | 0.4 | 11 | 0.3 | 11 | 0.4 |