Data period: through 2018

Town County Delorme Map # True Basin Flushing Rate Elevation
HOLLIS YORK 2 1 13.45 flushes/yr 230 ft
Maximum Depth Average Depth Surface Area Lake Volume Drainage Area
NA m
(NA ft) 		NA m
(NA ft) 		1 ha
(2 ac) 		72,600 m3
(59 ac-ft) 		2 km2
(0.6 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
1999 10.0 60 22 2.2 2.2 2.2 1 1 3.1 3.1 3.1
2000 13.8 59 34 1.5 1.6 1.6 2 2 3.8 7.4 11.0
2005 9 12.2 76 6.9 43 2.2 2.2 2.2 1 16.0 16.0 16.0
2006 9 8.8 69 6.8 18 2.1 2.1 2.1 1 1 7.9 7.9 7.9

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
9 11 66 6.9 38 20 1.5 2 2.2 1.2 3.1 8.6 16

Temperature and Dissolved Oxygen Profiles

Late summer only; limited to eight most recent profiles

Units: Temperature (TEMP) = °C; Dissolved Oxygen (DO) = mg/L
2000-08-24
2005-08-25
2006-08-24
Depth (m) TEMP DO TEMP DO TEMP DO
0 14 10.8 16 12.9 14 13.2
1 12 9.7 13 10.7 12 11.1
2 12 8.4 11 5.3 10 7.6

Most recent temperature and dissolved oxygen profile plots

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