Lake Issues

Water Quality

Q2  2018 Mascoma Lake Water Quality Report*
By Jim Martel 

Parameter 6/12/2018 6/20/2017 6/21/2016 NH Median Long Term
Trend
Secchi Disk, m 5.0 3.1 2.9 3.2 Slowly
Improving
Chlorophyll-a, µg/L 1.96 0.99 4.56 4.58 Stable
Phosphorus, µg/L
Epilimnion (upper)
Hypolimnion (lower)
9.0
18.0
6.0
8.0
7.0
9.0
12
14
Stable
Turbidity, NTU
Epilimnion (upper)
Hypolimnion (lower)
.79
4.01
0.59
1.05
1.12
.99
N/A No sig.
Change
PH
Epilimnion (upper)
Hypolimnion (lower)
7.24
6.41
7.07
6.42
7.35
6.54
6.6 No sig.
Change
Acid Neutralizing
Capacity, mg/L

Epilimnion (upper)
4.4 10.2 9.7 4.9 No sig.
Change
Conductivity,
µmhos/cm

Epilimnion (upper)
Hypolimnion (lower)
72.1
67.7
67.4
65.0
72.0
76.5
40.0 Slowly
Increasing

* Samples taken from Station 1 Deep Spot.

Some Things You Can Do To Improve Lake Water Quality
•Use cleaning products containing no phosphates.
•Use only zero phosphate fertilizer on your lawn.
•Reduce and/or redirect storm water running off your property. For more info on Stormwater Management click HERE
•Leave the shoreline and nearshore area in its natural state. Conversely, restore altered shorelines to a more natural state.
•Don’t feed the waterfowl.
•Don’t dump sand in the lake.

Mascoma Lake Reports PDF

To get a report on water quality inspections on ML beaches click HERE