Processing math: 100%

Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
T04 ND HANCOCK 35 1 1.62 flushes/yr 344 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
6 m
(20 ft) 		5 m
(15 ft) 		290 ha
(717 ac) 		8,700,000 m3
(7,053 ac-ft) 		24 km2
(9.3 mi2)

Secchi Disk Transparency Graphs

Graph Legend: Secchi symbols = average Secchi Disk Transparency Values; tick marks = maximum and minimum values for each year.

Water Chemistry and Trophic State Parameters

Table Legend:

Color: Color (SPU), Alk: Alkalinity (mg/l CaCO3), SpCon: Specific Conductivity (μS/cm), pH: pH (standard units)

TP = Total Phosphorus (μg/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 (μg/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
2004 3.0 3.2 3.6 3
2009 4.6 18 5.5 10.8 3.1 3.4 4.3 4 1.8 2.8 3.5
2010 64 4.6 20 5.1 11.4 3.0 3.8 4.4 5 2.2 3.3 4.8
2011 73 4.0 18 6.4 10.8 2.9 3.6 4.2 7 2.2 3.0 4.9
2012 75 4.2 14 6.5 10.4 3.5 3.8 4.1 6 2.2 2.9 3.5
2013 76 4.5 22 6.6 12.1 3.4 3.9 4.2 5 2.0 3.1 4.1
2014 65 4.5 18 6.3 8.5 3.3 4.0 4.5 5 1.8 3.8 6.8
2015 60 4.8 18 6.6 8.7 3.1 4.2 4.8 6 2.7 4.5 7.5
2016 55 5.0 20 6.5 9.6 4.1 4.5 5.0 6 1.6 3.4 5.7
2017 61 4.8 19 6.7 8.2 3.9 4.3 4.7 5 2.3 3.6 4.8
2018 61 5.0 20 6.5 7.4 3.8 4.4 5.0 6 2.0 3.0 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
66 4.6 19 5.9 9.8 2.9 3.9 5 5.3 1.6 3.3 7.5

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2015-09-08
2016-08-11
2016-09-07
2017-08-07
2017-08-22
2017-09-12
2018-08-07
2018-09-05
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 24 8.0 24 8.0 23 8.5 23 7.8 23 8.4 19 8.8
1 24 8.0 24 8.0 23 8.5 23 7.8 22 8.4 19 8.8 28 7.9 24 8.1
2 24 8.0 24 7.8 22 8.3 23 7.8 22 8.3 19 8.8 27 7.8 23 8.0
3 24 8.0 24 7.7 22 8.0 23 7.7 22 8.2 19 8.7 26 7.6 23 7.8
4 23 7.4 23 7.5 22 7.8 23 7.7 22 8.2 19 8.7 25 6.3 23 7.7
5 23 7.1 23 7.0 22 7.3 23 7.6 22 8.0 19 8.7 22 3.4 23 7.4
6 22 5.7 22 5.2 21 7.2 23 7.4 21 7.7 19 8.6 21 1.6 22 5.5
7 21 3.6 21 2.6 21 6.9 20 1.3 21 7.6 19 8.5 20 0.8 21 3.5
8 20 0.7 20 0.8 21 6.4 19 0.4 21 7.3 19 8.4 19 0.5 21 1.5
9 20 0.4 19 0.2 21 5.8 19 0.4 20 6.2 19 8.2 18 0.2 20 0.9

Most recent temperature and dissolved oxygen profile plots

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