Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
MEDDYBEMPS WASHINGTON 36 1 0.6 flushes/yr 170 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
12 m
(38 ft) 		4 m
(14 ft) 		2,717 ha
(6,713 ac) 		117,543,614 m3
(95,294 ac-ft) 		70 km2
(27 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 4 5.0 5.0 5.0 1
1979 7 4.5 4.6 4.8 5
1980 9 4.0 4.4 5.3 5 2.4 3.2 4.4
1981 3.4 4.0 4.4 4
1982 6 32 6 3.6 4.1 5.0 4 3.0 3.0 3.0
1983 3.6 4.2 4.8 4
1986 4.3 4.3 4.4 6
1987 5 36 7 4.3 4.4 5.5 4
1991 8 3.7 3.7 3.7
1994 7 10 5.8 5.8 5.8 1 3.2 3.2 3.2
1996 4.9 4.9 4.9 1
1999 5 35 6 5.1 5.1 5.1 1 6.4 6.4 6.4
2005 8 5 35 6.9 8
2010 6 6.4 6.4 6.4 1 2.1 2.1 2.1
2015 7 4.1 4.2 4.3 1 5.6 5.6 5.6

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
8 5.6 34 6.9 7.1 7 3.4 4.7 6.4 2.9 2.1 3.9 6.4

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1980-09-03
1982-09-08
1987-08-20
1994-08-25
1999-08-19
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22 8.5 18 9.3 22 8.5 21 8.7 22 8.4
1 18 9.3 21 8.7 22 8.4
2 22 8.3 18 9.4 22 8.3 21 8.7 22 9.5
3 18 9.3 21 8.6 22 9.3
4 22 8.3 17 9.3 22 8.2 21 8.5 22 9.3
5 17 9.3 21 8.4 22 9.3
6 22 8.3 17 9.3 21 7.8 21 8.4 22 9.4
7 17 9.3 21 8.3
8 17 9.3 21 7.6 20 8.3
9 17 9.3 20 8.2
10 20 7.2 20 7.8

Most recent temperature and dissolved oxygen profile plots

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