Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
MORRILL WALDO 14 1 2.34 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
3 m
(10 ft) 		2 m
(5 ft) 		63 ha
(156 ac) 		1,030,670 m3
(836 ac-ft) 		4 km2
(1.4 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
2006 2.4 3.2 3.6 4
2008 30 8.3 43 7.0 13 2.6 2.6 2.6 1 1 3.9 3.9 3.9
2009 3.1 3.1 3.1 4
2011 3.7 3.7 3.7 4 4
2013 3.6 3.6 3.6 1 2
2014 30 10.0 46 7.2 14 3.7 3.7 3.7 1 4.8 4.8 4.8
2016 19 12.0 50 7.2 15 2.7 2.7 2.7 1 1 4.0 4.0 4.0

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
26 10 46 7.1 14 2.4 3.2 3.7 2.3 3.9 4.2 4.8

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2008-08-13
2014-08-25
2016-08-30
Depth (m) TEMP DO TEMP DO TEMP DO
0 22 8.2 25 8.8 23 8.2
1 22 8.3 24 8.8 23 8.0
2 21 9.4 23 8.6 23 8.0
3 21 8.1 23 8.0
4 22 6.7

Recent temperature and dissolved oxygen profile plots

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