Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
GREENVILLE PISCATAQUIS 41 1 0.32 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
73 m
(240 ft)
17 m
(55 ft)
30,863 ha
(76,264 ac)
5,193,000,000 m3
(4,210,034 ac-ft)
1,032 km2
(398 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
2003 12 7.8 30 4.5 4.2 8.2 8.3 8.4 2 1.4 1.4 1.5

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
12 7.8 30 4.5 4.2 8.2 8.3 8.4 2 1.4 1.4 1.5

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2003-08-26
Depth (m) TEMP DO
0 19.1 9.1
1 19.0 9.2
2 18.9 9.0
3 18.6 9.1
4 18.4 9.2
5 18.4 9.1
6 18.3 9.1
7 18.3 9.1
8 16.2 9.4
9 15.9 9.5
10 15.7 9.4
11 15.1 9.5
12 13.7 9.8
13 12.8 10.0
14 11.7 10.2
15 11.1 10.3
16 10.6 10.5
17 9.9 10.6
18 9.6 10.7
19 9.4 10.8
20 9.0 10.9
21
22
23
24
25 7.8 11.4
26
27
28
29
30 7.3 11.6
31
32
33
34
35 7.0 11.8
36
37
38
39
40 6.8 11.8
41
42
43
44
45 6.7 11.8

Recent temperature and dissolved oxygen profile plots

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