Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
WALDOBORO LINCOLN 13 1 28.5 flushes/yr 127 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
8 m
(25 ft)
3 m
(10 ft)
92 ha
(227 ac)
2,882,658 m3
(2,337 ac-ft)
123 km2
(48 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
1997 11 50 7.1 21 25 1.7 2.2 2.4 1 9.4 9.4 9.4
2000 16 53 23 43 2.5 2.5 2.5 1 4.7 4.7 4.7
2015 61 15 59 6.9 18 92 2.8 2.8 2.8 1 1.5 1.5 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
61 14 54 7 21 53 1.7 2.5 2.8 1 1.5 5.2 9.4

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1997-08-18
2000-08-21
2015-09-08
Depth (m) TEMP DO TEMP DO TEMP DO
0 23 7.5 21 7.4 25 8.1
1 23 7.4 21 7.4 25 8.0
2 23 7.4 21 7.3 23 6.2
3 22 6.8 21 6.9 22 4.0
4 22 5.7 20 5.9 22 0.4
5 20 0.3 19 0.2 20 0.3
6 17 0.3 17 0.2 17 0.3
7 15 0.3 16 0.2 16 0.3
8 14 0.2

Most recent temperature and dissolved oxygen profile plots

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