Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
OTISFIELD OXFORD 11 1 1.94 flushes/yr 522 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
5 m
(16 ft) 		2 m
(7 ft) 		62 ha
(153 ac) 		1,386,768 m3
(1,124 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.

## [1] "No 2018 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
2000 3.5 6.1 10 3.7 3.7 3.7 1 4.8 4.8 4.8
2001 20.0 6.9 12 4.2 4.2 4.2 1 1 2.9 2.9 2.9
2002 2.6 2.7 2.8 2
2003 2.6 2.6 2.7 2
2005 3.5 14 11 3.1 3.1 3.1 1 5.5 5.5 5.5
2010 2.0 10 3.6 3.6 3.6 1 4.3 4.3 4.3

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
7.2 14 6.3 11 2.6 3.3 4.2 1.3 2.9 4.4 5.5

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2000-08-29
2001-08-29
2005-08-15
Depth (m) TEMP DO TEMP DO TEMP DO
0 22 8.5 23 8.8 25 8.0
1 22 8.5 23 8.8 25 8.0
2 22 8.4 23 8.8 25 8.4
3 20 6.3 23 8.8 24 3.9
4 20 4.1 23 8.7 18 0.8

Most recent temperature and dissolved oxygen profile plots

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