Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
BROOKS WALDO 14 1 2.1 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
20 m
(66 ft)
9 m
(28 ft)
40 ha
(98 ac)
2,389,316 m3
(1,937 ac-ft)
2 km2
(0.6 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
1999 5.8 6.7 7.7 5
2000 7.0 34 8 18 5.0 6.3 8.4 5 3.2 3.2 3.2
2001 5 22 6.6 6.9 7.3 6 3.5 3.5 3.5
2002 14 7.0 53 5 7 5.5 6.6 7.4 5 2.4 4.0 5.6
2003 15 7.0 52 8 14 6.0 7.2 8.6 7 1.6 1.6 1.6
2004 5.2 6.0 6.7 5
2005 5.5 5.9 6.1 5
2006 4.8 5.3 6.0 5
2007 9 4.4 39 6.9 5 18 6.6 7.5 8.0 6 3.7 3.7 3.7
2008 6.0 7.0 8.0 5
2009 6.2 7.2 7.9 2
2011 4 5.1 5.9 6.6 2 2.2 2.2 2.2
2016 10 6.0 53 7.1 5 18 7.5 7.5 7.5 1 1.5 1.5 1.5

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 6.3 46 7 5.7 16 4.8 6.6 8.6 4.5 1.5 2.8 5.6

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2000-08-10
2002-08-21
2007-08-15
2011-08-04
2016-08-25
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24.1 8.6 26.6 8.1 22.7 8.4 24.4 8.2 24.2 8.5
1 23.9 8.7 26.5 8.1 22.7 8.3 24.4 8.1 24.2 8.5
2 23.8 8.8 25.7 8.1 22.7 8.3 24.3 8.1 23.9 8.5
3 23.2 8.7 25.4 8.1 22.7 8.3 24.3 8.1 23.7 8.4
4 21.0 9.2 21.6 9.9 22.3 8.3 18.8 10.3 23.5 8.4
5 14.9 10.1 16.1 11.1 15.0 12.4 12.3 11.7 19.8 12.5
6 11.9 9.1 12.0 9.5 11.2 10.7 8.8 9.1 15.5 12.5
7 8.9 7.8 9.5 7.6 8.4 9.3 7.3 7.2 11.8 10.8
8 8.1 7.2 7.8 6.5 6.8 7.4 6.4 6.5 8.7 7.0
9 7.6 6.7 6.9 6.1 5.8 6.1 5.6 6.0 7.7 5.3
10 6.9 5.6 6.4 5.7 5.3 5.7 5.3 5.6 7.0 4.7
11 6.6 5.4 6.0 5.3 5.0 5.3 5.1 5.2 6.7 3.8
12 6.5 5.1 5.7 4.8 4.8 4.6 5.0 4.9 6.5 3.1
13 6.3 4.6 5.5 4.7 4.6 4.0 4.8 4.5 6.4 2.6
14 6.2 4.0 5.3 4.4 4.5 3.6 4.8 4.3 6.4 2.0
15 6.2 3.3 5.2 4.0 4.4 2.8 4.7 3.9 6.3 1.2
16 6.1 2.4 5.1 3.3 4.4 1.9 4.7 3.7
17 6.1 2.2 5.1 2.4 4.4 1.2 4.7 3.2 6.3 0.4
18 6.0 1.4 5.0 2.3 4.4 0.4 4.7 1.5
19 6.0 0.8 5.0 2.0 6.2 0.1
20 5.0 1.7

Recent temperature and dissolved oxygen profile plots

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