Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
SANFORD YORK 2 1 1.02 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft) 		NA m
(NA ft) 		5 ha
(12 ac) 		360,000 m3
(292 ac-ft) 		0 km2
(0.1 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
1984 8 4.6 4.6 4.6 1 1 4.1 4.1 4.1
1994 3.5 4.0 4.4 4 3
1995 7.0 7 3.1 3.7 4.3 4 5
1996 5.5 32 6 3.5 3.7 4.3 5 6 6.0 6.0 6.0
1997 5.5 31 8 3.4 3.8 4.2 5 3 5.7 5.7 5.7
1998 5.0 29 7 3.4 4.2 4.7 7 17 3.6 3.6 3.6
1999 2.8 3.9 4.5 4 9
2000 4.2 4.5 4.6 5 7
2001 4.4 4.5 4.6 4 11
2002 4.4 5.4 6.0 3 6
2003 9.5 6.0 29 8 3.7 4.3 4.6 2 5 4.3 4.3 4.3
2004 4.5 4.5 4.5 1 1
2005 3.5 4.2 4.5 4 5
2006 3.4 4.1 4.5 3 5
2007 15.0 4.2 38 6.7 10 4.3 4.4 4.6 3 7 4.2 4.2 4.2
2008 4.0 4.3 4.5 3 2
2009 4.0 4.1 4.6 4 2
2010 4.5 4.6 4.7 5 6
2011 4.5 4.6 4.6 4 5
2012 14.0 4.5 36 6.9 5 4.4 4.4 4.6 4 6
2013 4.2 4.2 4.2 3 4
2014 4.0 4.1 4.2 3 4
2015 4.0 4.1 4.2 4 4
2016 3.8 4.1 4.3 5 5
2017 3.9 4.1 4.4 4 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
13 5.4 32 6.8 7.7 5 2.8 4.3 6 3.8 3.6 4.7 6

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1984-09-12
1995-08-10
1996-08-29
1997-08-22
1998-08-24
2003-08-21
2007-08-22
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 20 8.6 27 7.8 25 8.2 22 7.8 25 8.4 28 8.3 22 8.3
1 20 8.6 27 7.9 24 8.3 22 7.8 25 8.6 27 8.5 22 8.3
2 20 8.6 26 7.8 24 8.3 22 7.8 24 8.6 26 8.6 22 8.4
3 20 8.6 26 7.7 24 8.3 22 7.7 23 8.5 26 8.4 22 8.3
4 20 8.5 26 7.5 24 8.3 22 7.7 22 6.2 26 7.8 22 8.4

Recent temperature and dissolved oxygen profile plots

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