Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
HIRAM OXFORD 4 1 10.6 flushes/yr 415 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
6 m
(21 ft) 		2 m
(6 ft) 		3 ha
(7 ac) 		53,132 m3
(43 ac-ft) 		1 km2
(0.3 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
1992 1.0 1.9 3.0 4
1993 3.2 3.6 4.0 2
1994 3.1 3.8 4.2 5
1995 3.6 3.7 3.8 2 2
1996 3.6 3.8 3.9 5 2
1997 3.0 3.4 4.0 5 1
1998 7.0 60 9.0 3.8 4.0 4.9 6 9 4.6 4.6 4.6
1999 5.3 68 9.5 10 4.3 4.6 5.0 2 4.8 6.2 7.7
2000 7.0 69 12.0 18 2.9 3.1 3.4 4 8.1 8.1 8.1
2002 2.8 3.2 3.6 5
2003 3.0 3.3 3.8 5 5
2004 3.4 3.6 4.0 5 3
2005 23 4.3 79 6.5 10.0 11 3.4 3.7 4.6 5 3 10.0 10.0 10.0
2006 3.6 3.9 4.2 5
2007 3.4 3.6 3.9 5 3
2008 3.1 3.5 3.8 5 2
2009 17.0 11 3.7 3.7 3.7 1 4.0 4.0 4.0
2010 3.5 3.7 3.8 5 1
2011 3.0 3.6 4.4 5 2
2012 3.2 3.8 4.0 5
2013 3.5 3.9 4.2 5 2
2014 3.2 3.7 4.3 5 4
2015 13 60.0 75 6.4 9.0 12 3.4 3.9 5.2 6 3 5.6 5.6 5.6
2016 3.2 3.6 4.0 5 4
2017 3.5 3.7 4.1 5 2
2018 3.5 3.9 5

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
18 17 70 6.4 11 12 1 3.6 5.2 4.5 4 6.4 10

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1998-08-20
1999-08-25
2000-08-23
2005-08-25
2009-08-13
2015-08-19
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 26 9.5 25 9.0 22 8.8 25 7.7 24.3 6.8 29 8.0
1 24 9.4 23 9.2 22 8.8 23 8.1 23.5 6.8 27 8.1
2 23 9.2 23 9.2 22 8.7 23 7.3 21.9 3.6 26 7.1
3 22 9.6 22 9.2 21 8.4 21 1.2 18.6 1.2 24 3.0
4 16 5.4 22 8.4 18 5.9 15 0.5 15.5 1.1 23 2.2
5 14 3.3 21 1.0 15 0.9 12 0.5 12.0 0.5 18 0.5
6 20 0.2 14 0.2 10 0.5 9.4 0.4 16 0.3

Most recent temperature and dissolved oxygen profile plots

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