Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
NEW GLOUCESTER CUMBERLAND 5 1 0.88 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
21 m
(68 ft) 		8 m
(28 ft) 		134 ha
(331 ac) 		11,271,150 m3
(9,138 ac-ft) 		14 km2
(5.3 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
1981 6.7 6.8 6.8 1
1982 6.1 6.1 6.1 1
1986 6.0 6.0 6.0 1
1990 7.5 4.7 7.0 8.7 5
1991 4.9 7.0 8.2 4
1992 5.3 6.4 7.8 5
1993 5.6 7.2 8.7 4
1994 7.9 8.2 8.6 2

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
7.5 4.7 6.8 8.7 2.9 Inf 1

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1990-08-15
1990-09-21
1992-08-18
Depth (m) TEMP DO TEMP DO TEMP DO
0 22.8 8.7 18.0 9.1 21.0 8.9
1 22.0 8.7 18.0 9.1 21.0 8.9
2 21.9 8.7 17.8 9.1 21.0 8.9
3 21.7 8.7 17.8 9.1 20.8 8.8
4 21.5 8.7 17.6 9.1 20.8 8.8
5 20.0 9.6 17.5 9.1 20.7 8.8
6 13.3 13.0 17.5 9.1 16.3 12.4
7 9.0 10.0 17.0 9.1 11.8 10.7
8 7.3 8.0 12.0 8.6 9.9 7.3
9 6.9 7.0 10.2 5.3 8.7 5.5
10 6.4 6.4 8.1 3.4 8.1 4.7
11 6.0 5.9 8.7 2.9 8.0 4.4
12 6.0 5.7 8.3 2.6 8.0 4.1
13 6.0 5.3 8.2 2.4 7.9 3.7
14 5.8 5.0 8.0 2.0 7.8 3.3
15 5.5 3.4 7.9 1.1 7.5 1.8
16 5.3 1.8 7.7 0.1 7.2 0.0
17 5.2 0.6 7.4 0.1 7.0 0.0
18 7.0 0.0

Recent temperature and dissolved oxygen profile plots

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