Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
CHERRYFIELD WASHINGTON 25 1 0.4 flushes/yr 223 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
11 m
(37 ft) 		3 m
(10 ft) 		357 ha
(882 ac) 		10,183,432 m3
(8,256 ac-ft) 		3 km2
(1.1 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
1977 3.5 4.0 5.7 4
1982 7 27 15 3.5 4.9 6.7 6 1.0 2.1 4.3
1983 4 6 3.7 4.9 6.8 7
1984 4.1 5.0 6.8 5
1985 6 32 12 22 3.8 4.6 6.3 5
1995 6.0 6.0 6.0 1
1999 5 33 11 6.5 6.5 6.5 1 4.5 4.5 4.5
2002 8 8 24 5 16 7.5 7.5 7.5 1 2.1 2.1 2.1
2003 5 8 27 13 26 8.2 8.2 8.2 1 11.0 11.0 11.0
2004 7 6 24 7 12 6.7 6.7 6.7 1 5.4 5.4 5.4
2009 9 9 7.9 8.0 8.0 1 2.1 2.1 2.1

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
6.7 6.7 28 7 10 16 3.5 6 8.2 3 1 4.5 11

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-09-08
1985-08-22
1999-08-19
2002-08-22
2003-08-14
2004-08-23
2009-08-26
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 18 9.3 22 8.7 22 8.3 24 8.5 24 8.4 22 9.5 24 8.5
1 18 9.3 22 8.7 22 8.3 24 8.6 24 8.3 22 9.5 24 8.5
2 18 9.3 22 8.7 22 8.4 24 8.6 24 8.3 22 9.5 24 8.6
3 18 9.2 22 8.7 22 8.4 24 8.6 23 8.3 22 9.5 24 8.6
4 18 9.2 22 8.7 22 8.3 24 8.6 23 8.4 21 9.6 24 8.6
5 18 9.2 22 8.7 22 8.3 24 8.7 22 8.6 21 9.6 24 8.5
6 18 9.2 22 8.7 22 8.3 24 8.7 22 8.7 21 9.5 23 8.3
7 18 9.1 22 8.6 22 8.3 22 9.4 22 8.8 21 9.5 21 6.5
8 18 9.0 22 8.6 22 7.9 20 7.0 19 6.5 21 9.3 19 2.7
9 18 8.8 21 8.3 21 4.0 17 3.0 16 2.8 18 3.2 17 1.1
10 18 8.9 19 2.1 16 0.3 16 0.8 14 0.7 16 0.2 16 0.7
11 18 8.9 17 0.3 16 0.3 13 0.3 15 0.3

Most recent temperature and dissolved oxygen profile plots

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