Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
ROCKWOOD STRIP-WEST SOMERSET 40 1 2.5 flushes/yr 1073 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
20 m
(65 ft) 		9 m
(29 ft) 		3,838 ha
(9,485 ac) 		339,409,689 m3
(275,164 ac-ft) 		320 km2
(124 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
1984 7 8 36 2.8 3.1 3.5 2 3.7 3.7 3.7
1996 27 27 15 20 4.4 4.4 4.4 1 1.8 1.8 1.8

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
17 27 12 28 2.8 3.8 4.4 1.5 1.8 2.8 3.7

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1984-09-05
1996-08-14
Depth (m) TEMP DO TEMP DO
0 18 7.8 21 8.2
1 19 7.7 21 8.2
2 19 7.6 21 8.2
3 19 7.5 21 8.1
4 19 7.5 21 8.1
5 19 7.5 21 8.1
6 19 7.4 21 8.0
7 19 7.4 20 8.0
8 19 7.4 20 7.9
9 19 7.3 20 7.0
10 19 7.3 19 7.0
11 18 7.2 18 6.8
12 18 6.8 18 6.6
13 18 6.2 18 6.1
14 16 1.0 17 5.7
15 15 0.3 17 5.1
16 15 0.2 16 4.6
17 14 0.1 16 3.9
18 14 2.3

Most recent temperature and dissolved oxygen profile plots

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