Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
NEWFIELD YORK 2 1 2.72 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
5 m
(17 ft) 		3 m
(9 ft) 		60 ha
(148 ac) 		1,625,266 m3
(1,318 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
1978 7.0 30 9 4.1 4.1 4.1 1 2.2 2.2 2.2
1979 4.5 4.5 4.5 1 1
1997 7.0 42 6.9 10 3.9 4.2 4.4 1 1 2.5 2.5 2.5
2000 9.0 42 10 4.3 4.3 4.3 1 1 4.1 4.1 4.1
2007 4.2 4.5 4.6 6 10
2008 17 5.6 42 7.0 6 4.3 4.6 4.8 5 7
2009 4.5 4.7 4.8 8 10
2010 4.5 4.6 4.9 7 10
2011 4.5 4.6 4.7 7 12
2012 4.6 4.7 4.8 2 4
2013 4.5 4.6 4.7 6 12
2014 10 6.0 50 6.9 11 4.3 4.6 4.8 8 15 4.0 4.0 4.0
2015 3.8 4.1 4.3 7 12
2016 4.1 4.5 4.6 6 6
2017 9 11.0 68 7.1 7 4.5 4.5 4.5 1 3.2 3.2 3.2

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 7.6 46 7 9.4 6 3.8 4.5 4.9 4.5 2.2 3.2 4.1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1997-08-21
2000-08-25
2014-08-21
2017-09-11
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 23 8.1 22 9.0 23 8.1 21 9.0
1 23 8.0 21 9.0 23 8.1 20 9.0
2 23 7.9 21 9.0 23 8.0 20 9.0
3 23 7.9 21 8.9 23 7.9 20 9.0
4 23 7.9 21 8.9 22 7.5 19 9.1

Recent temperature and dissolved oxygen profile plots

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