Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
WATERBORO YORK 4 1 2.45 flushes/yr 290 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(25 ft) 		3 m
(10 ft) 		12 ha
(30 ac) 		363,539 m3
(295 ac-ft) 		1 km2
(0.5 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
1989 2.5 3.1 3.5 7
1990 6.5 18 5.3 12 3.3 3.3 3.3 1 5.3 5.3 5.3
1996 2.0 19 10 9 2.5 2.5 2.5 1 3.7 3.7 3.7
2001 0.5 16 5.9 11 12 3.2 3.3 3.4 1 2.8 2.8 2.8

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
3 18 5.5 11 10 2.5 3 3.5 2.5 2.8 3.9 5.3

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1990-09-12
1996-08-23
2001-08-15
Depth (m) TEMP DO TEMP DO TEMP DO
0 20.4 7.2 24.8 7.8 25 7.1
1 20.2 7.2 24.3 7.8 24 7.6
2 19.5 6.0 19.4 0.2 21 2.0
3 15.8 0.8 13.2 2.7 12 2.2
4 11.3 3.2 9.7 4.4 8 2.7
5 9.0 1.3 7.7 4.2 6 2.2
6 8.0 1.1 6.9 0.3 5 0.3
7 2.3 0.9 6.3 0.2

Most recent temperature and dissolved oxygen profile plots

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