Data period: through 2017

Town County Delorme Map # True Basin Flushing Rate
LYMAN YORK 2 2 22.55 flushes/yr
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
7 m
(22 ft) 		2 m
(6 ft) 		48 ha
(118 ac) 		602,279 m3
(488 ac-ft) 		5 km2
(2.1 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
1980 1.2 1.5 1.6 6
1981 1.2 1.5 1.8 7
1982 5.5 30 24 90 0.7 1.2 1.5 6 2.9 5.2 11.5
1983 0.8 1.2 1.5 7
1984 0.8 1.3 2.2 7
1985 1.0 1.7 2.1 5
1986 45 1.8 1.8 1.8 1
2002 130 5.0 27 22 17 2.1 2.1 2.2 1 7.2 7.2 7.2

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
130 5.2 28 23 51 0.7 1.5 2.2 5 2.9 6.2 12

Most recent late summer temperature and dissolved oxygen profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
1982-09-22
1986-09-10
2002-08-27
Depth (m) TEMP DO TEMP DO TEMP DO
0 17 6.8 20 7.5 25 7.0
1 17 6.6 19 7.4 24 7.0
2 16 6.7 19 6.3 22 5.8
3 16 6.7 18 5.9 19 0.6
4 15 0.6 17 0.2 14 0.4
5 14 0.2 12 0.4

Recent temperature and dissolved oxygen profile plots

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