Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
WATERBORO YORK 2 1 2.07 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
9 m
(29 ft)
4 m
(13 ft)
17 ha
(42 ac)
666,213 m3
(540 ac-ft)
3 km2
(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
1990 8.5 35 6.9 6 3.5 4.4 5.0 4 2.7 2.7 2.7
1996 7.0 37 8 17 3.6 3.6 3.6 1 2.3 2.3 2.3
2001 6.5 38 7.1 7 16 4.2 4.2 4.3 1 2.9 2.9 2.9
2016 4.5 4.8 5.0 5
2017 24 7.5 48 7.1 9 3.4 4.1 4.8 4 4.1 4.1 4.1

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
24 7.4 40 7 7.5 16 3.4 4.2 5 3 2.3 3 4.1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1990-09-13
1996-08-23
2001-08-20
2017-09-11
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 21 8.0 25 8.0 29.1 8.3 19.9 8.8
1 21 7.8 25 8.0 24.1 8.0 19.5 8.7
2 20 7.8 24 7.3 23.9 7.5 19.3 8.7
3 20 7.8 21 1.6 21.5 4.2 19.1 8.7
4 19 3.7 16 0.2 15.3 1.2 17.6 5.1
5 14 0.7 13 0.1 11.4 0.9 13.0 0.4
6 12 0.6 11 0.1 9.0 0.8 10.7 0.2
7 10 0.6 11 0.1 8.1 0.7 9.6 0.2

Recent temperature and dissolved oxygen profile plots

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