Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
CLIFTON PENOBSCOT 24 1 1.94 flushes/yr 255 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(28 ft) 		5 m
(16 ft) 		61 ha
(151 ac) 		2,995,621 m3
(2,429 ac-ft) 		4 km2
(1.5 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
1980 3.5 4.5 5.8 6
1981 5 30 11 3.7 4.5 5.8 6 2.5 2.5 2.5
1982 3.7 4.5 5.2 6
1983 3.4 4.2 5.2 7
1984 4.0 4.7 5.5 6
1985 6 35 8 6 4.4 5.2 6.3 7
1986 4.3 5.0 6.1 7
1987 4.6 4.9 5.8 7
1988 6 28 7 6.2 6.2 6.2 1
1999 5 33 7 8 5.1 5.9 6.4 1 4.2 4.2 4.2
2000 12 31 9 12 6.6 6.6 6.6 1 2.5 2.5 2.5
2011 5 10 6.0 6.0 6.0 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 31 7.8 9 3.4 5.2 6.6 4.7 2.1 2.8 4.2

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1981-08-26
1985-08-22
1988-08-31
1999-08-17
2000-08-22
2011-08-08
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO TEMP DO
0 22 8.8 22 8.5 22 9.2 23 8.8 22 8.5 24 8.2
1 22 8.7 22 8.4 23 8.8 21 8.5 23 8.3
2 22 8.7 22 8.4 22 9.1 22 8.8 21 8.4 23 8.3
3 21 8.6 22 8.4 22 8.9 20 8.4 23 8.3
4 21 8.6 22 8.3 21 9.0 22 8.7 20 8.4 23 8.1
5 20 7.4 22 8.3 21 8.3 20 8.2 18 5.7
6 19 3.7 18 3.0 20 7.8 19 5.1 18 1.0 14 2.0
7 16 0.5 17 0.7 15 0.2 12 0.7
8 14 0.2 12 0.3

Most recent temperature and dissolved oxygen profile plots

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