Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
SANDY RIVER PLT FRANKLIN 19 1 3.89 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
18 m
(58 ft) 		5 m
(16 ft) 		28 ha
(69 ac) 		1,346,367 m3
(1,092 ac-ft) 		4 km2
(1.4 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
2005 20 4.0 40 6.7 7 8 4.5 4.6 4.7 1 5.0 5.0 5.0
2006 24 4.3 38 6.7 12 16 3.9 3.9 3.9 1 8.3 8.3 8.3
2012 7.5 4.0 4.0 4.0 1

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
22 4.2 39 6.7 9.5 7.5 12 3.9 4.2 4.7 1 5 6.7 8.3

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2005-08-11
2006-08-16
2012-08-08
2012-08-23
Depth (m) TEMP DO TEMP DO TEMP DO TEMP DO
0 25.1 8.1 19.4 9.2 23.9 7.2 22 8.3
1 25.0 8.1 19.3 9.2 23.6 7.4 22 8.2
2 25.0 8.0 19.2 9.1 23.4 7.2
3 22.1 8.5 19.0 9.1 23.2 7.1
4 19.0 9.2 18.4 9.0 17.6 6.9
5 11.8 6.1 12.5 5.0 13.0 3.5
6 9.7 5.0 9.5 4.1 9.8 2.7
7 8.8 4.3 8.8 3.7 9.3 2.2
8 8.2 4.0 8.4 3.6 9.1 2.1
9 7.9 3.7 8.1 3.8 8.9 2.0
10 7.5 3.5 7.8 3.6 8.8 2.0
11 7.3 3.5 7.6 3.4 8.5 1.9
12 6.8 3.1 7.5 3.3 8.3 1.7
13 6.6 2.4 7.3 2.9 8.3 1.6
14 6.5 2.2 7.1 2.4 8.2 1.5
15 6.4 1.8 7.0 1.8 8.1 0.7
16 6.3 1.7 7.0 1.3
17 6.2 1.4 6.9 1.0

Recent temperature and dissolved oxygen profile plots

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