Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
NAPLES CUMBERLAND 4 1 0.14 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
17 m
(57 ft) 		10 m
(33 ft) 		122 ha
(301 ac) 		12,468,135 m3
(10,108 ac-ft) 		2 km2
(0.8 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 2017 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
1976 7 8.8 9.6 10.4 2 1.1 1.1 1.1
1977 11 8.2 8.2 8.2 1
1979 6 14 10.0 10.0 10.0 1 1.2 1.2 1.2
1980 3.0 34 4 13 12.4 12.4 12.4 1 1.5 1.5 1.5
1983 3.5 9 2 12.0 12.0 12.0 1 0.9 0.9 0.9
1986 5.0 23 10.2 10.2 10.2 1 1.3 1.3 1.3

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
3.8 28 6.5 10 8.2 10 12 1.2 0.9 1.2 1.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1979-09-25
1980-09-24
1983-08-25
1986-08-22
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 17 10.1 18 9.5 23.0 8.6 23.0 8.6
1 23.2 8.7 23.0 8.8
2 18 10.0 19 9.2 23.2 8.7 23.0 8.6
3 22.7 8.7 23.0 8.6
4 18 9.7 18 9.2 22.8 8.6 23.0 8.7
5 23.0 8.7 23.0 8.8
6 18 9.7 18 9.2 23.0 8.7 22.8 8.8
7 22.5 8.7 22.8 8.8
8 18 9.6 18 9.2 23.0 8.7 22.0 8.8
9 20.5 11.3 19.5 9.7
10 17 9.6 18 9.2 16.0 12.2 16.5 10.4
11 18 8.9 13.5 12.7 13.5 10.8
12 15 10.4 18 9.2 11.5 11.6 11.8 10.4
13 13 9.6 18 9.2 10.8 9.5 11.0 9.5
14 12 7.0 15 11.4 10.0 6.5 10.0 8.8
15 15 8.5 9.6 4.5 9.5 7.0
16 10 2.5 12 5.6 9.5 2.6 9.0 4.5
17 11 4.2
18 11 1.0

Recent temperature and dissolved oxygen profile plots

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