Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
HOBBSTOWN TWP SOMERSET 39 1 0.99 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
41 m
(135 ft) 		9 m
(31 ft) 		693 ha
(1,712 ac) 		64,824,752 m3
(52,554 ac-ft) 		44 km2
(17 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
1986 8.4 8.4 8.4 1
1989 12 31 7.7 7.7 7.7 1 2.9 2.9 2.9

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 31 7.7 8.1 8.4 1 2.9 2.9 2.9

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1989-09-13
Depth (m) TEMP DO
0 19.0 9.8
1 18.9 9.8
2
3 18.6 9.8
4
5 17.0 9.5
6
7 16.2 9.1
8
9 13.0 7.6
10
11 9.8 7.4
12
13 8.2 7.3
14
15 7.8 7.3
16
17 7.4 7.2
18
19
20 7.2 7.3
21
22
23
24
25 7.0 7.1
26
27
28
29
30 7.0 2.6

Recent temperature and dissolved oxygen profile plots

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