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Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
BENEDICTA AROOSTOOK 52 1 1.56 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
13 m
(42 ft) 		4 m
(12 ft) 		156 ha
(385 ac) 		5,791,468 m3
(4,695 ac-ft) 		16 km2
(6.3 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 (μS/cm), pH: pH (standard units)

TP = Total Phosphorus (μg/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 (μg/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
1977 17 48 8 19 4.3 4.3 4.3 1 5.4 5.4 5.4
1990 9 3.5 4.3 6.0 6 4.5 4.5 4.5
1991 8 7.6 9 3.8 4.7 5.4 6 4.3 4.3 4.3
1992 4.0 4.9 6.0 5
1996 16 48 9 14 4.4 4.4 4.4 1 12.0 12.0 12.0

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
14 48 7.6 9 8 16 3.5 4.5 6 3.8 4.3 6.5 12

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1977-09-15
1990-08-20
1991-09-09
1996-08-28
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 14 8.8 23 8.3 19 8.7 21 7.1
1 15 8.5 22 8.3 19 8.7 21 7.1
2 15 8.5 22 8.2 21 7.1
3 15 8.4 21 7.9 19 8.7 21 7.0
4 14 8.4 21 7.8 21 6.2
5 14 8.4 21 7.5 19 8.4 20 5.4
6 14 8.3 20 5.6 19 7.7 19 0.8
7 14 8.5 17 0.6 19 7.5 18 0.1
8 14 8.4 13 0.3 19 6.9 16 0.1
9 14 8.5 12 0.3 19 6.6 15 0.1
10 14 8.4 12 0.3 18 6.5 15 0.1
11 14 8.4 11 0.3 18 0.4 14 0.1
12 11 3.0 11 0.3 13 0.2 13 0.1

Recent temperature and dissolved oxygen profile plots

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