Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
UPTON OXFORD 18 1 0.31 flushes/yr 1396 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
34 m
(11 ft) 		1 m
(3 ft) 		149 ha
(368 ac) 		12,350,178 m3
(10,012 ac-ft) 		5 km2
(1.8 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 (\(\mu\)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
2000 8.2 28 6 6.1 6.7 7.2 2 3.5 3.8 4.1
2001 7.7 6.2 6.2 6.2 1
2015 6.5 6.5 6.5 1
2016 9 9.0 28 7.2 3 9.9 9.9 9.9 1 2.8 2.8 2.8
2018 14 9.0 7.2 33 7.4 7.4 7.4 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
12 8.8 28 7.3 14 6.1 7.4 9.9 1.2 2.8 3.5 4.1

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2000-08-18
2016-09-13
2018-08-20
Depth (m) TEMP DO TEMP DO TEMP DO
0 24.5 8.4 21.0 8.6 24.4 8.4
1 23.8 8.4 21.0 8.6 24.1 8.4
2 23.0 8.4 21.0 8.6 23.7 8.4
3 22.9 8.4 21.0 8.6 23.4 8.4
4 22.9 8.5 21.0 8.6 23.2 8.3
5 22.9 8.6 20.7 8.5 23.1 8.2
6 21.9 6.7 20.6 8.5 18.2 9.9
7 16.8 4.8 19.9 7.7 13.9 8.4
8 13.8 4.3 15.7 5.5 10.3 7.4
9 12.0 4.6 13.1 4.7 8.8 6.7
10 10.8 5.2 10.9 4.0 7.6 6.4
11 10.0 5.5 9.8 3.9 7.1 6.4
12 9.5 5.7 9.4 3.9 6.7 6.4
13 9.5 5.8 9.1 4.1 6.5 6.0
14 9.1 5.9 8.9 4.1 6.4 6.1
15 9.0 6.1 8.7 4.3 6.3 6.2
16 9.0 6.2
17 8.9 6.2 8.1 4.3 6.1 6.3
18 8.9 6.2
19 8.8 6.2 7.8 4.2 5.9 6.3
20 8.8 6.2
21 7.5 4.1 5.8 6.3
22
23 7.3 4.1 5.8 6.0
24
25 8.8 6.1 7.2 4.1 5.8 6.0
26
27
28
29 8.8 5.9
30 7.0 2.8 5.7 5.2
31
32
33
34
35 5.7 3.8

Most recent temperature and dissolved oxygen profile plots

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