Lake Sunapee Protective Association

 

Water Quality

LSPA has been concerned with water quality since its founding in 1898, when the issues were sawdust and trash in the lake and the level of the lake water. In the 1950’s LSPA collected water samples and tested for E.coli in order to have Lake Sunapee meet the standards to be named a class A (drinking water quality) lake in New Hampshire.

Starting in the 1980’s, LSPA volunteer water quality monitors have been regularly sampling Lake Sunapee’s water in cove and deep sites in Lake Sunapee, and more recently in its tributary streams. The samples are analyzed in LSPA’s Water Quality Laboratory at Colby-Sawyer College; NH Department of Environmental Services provides an annual water quality report based on its analysis of the data as part of the VLAP (Volunteer Lake Assessment) Program.

The LSPA lab at Colby-Sawyer College, run by Bonnie Lewis under strict quality standards as a sister lab to the state lab at NH Department of Environmental Services, also processes water samples for about twenty five area lakes.

"Deep Siting" in lake measurements are also taken in Lake Sunapee, along with water samples from many Water Quality Monitors around the lake and its tributaries.

 

Current Topics

2010 Weed Watchers Report
05-11-2010
Download this excel spreadsheet to record your weed reporting.

Springtime Signals Key Lake Cycle
03-29-2010
Springtime Signals Key Lake Cycle
Much goes on underneath the surface of lakes as the ice melts!


Weed watch area map: Area 1A
03-05-2010
Download this map for weed surveying in area 1A.

Winter Use of De-Icers
12-07-2009
A Reminder About Winter Use of De-Icers

Dominant Phytoplankton (Algae) in Lake Sunapee
11-18-2009
dominant algae present

Cyanobacterial Blooms
06-23-2009
There has been recent local media attention to cyanobacterial (blue green algae) blooms in New Hampshire lakes.

Carey’s Graduate Work
06-23-2009
Cayelan Carey will be continuing
the data collection work she began last
summer for her dissertation at Cornell.


2009 Weed Watch Teams 4,5,6a
06-02-2009
2009 Weed Watch Teams 4,5,6a

2009 Weed Wtach Teams 6b, 7, 8
06-02-2009
2009 Weed Wtach Teams 6b, 7, 8

2009 Weed Watch Teams 9, 10, 11
06-02-2009
2009 Weed Watch Teams 9, 10, 11

2009 Weed Watch Teams 12, 13, 14
06-02-2009
2009 Weed Watch Teams 12, 13, 14

2009 Weed Watch Teams 15, 16, 17
06-02-2009
2009 Weed Watch Teams 15, 16, 17

2009 Weed Watch Teams 18, 19, 20
06-02-2009
2009 Weed Watch Teams 18, 19, 20

2009 Weed Watch Teams 21, 22, 23
06-02-2009
2009 Weed Watch Teams 21, 22, 23

2009 Weed Watch Teams 24, 25, 26
06-02-2009
2009 Weed Watch Teams 24, 25, 26

2009 Weed Watch Team 27
06-02-2009
2009 Weed Watch Team 27

Lake Sunapee Bathymetry
01-08-2009
Some Surprises from Lake Sunapee Bathymetry

All About Winter Lake De-Icers
11-07-2008
All About Winter Lake De-Icers

John Downing - lake scientist visits Sunapee
07-28-2008
During the week of July 21st, Prof. John Downing studied Lake Sunapee, defining the lake bottom contour.

How Lakes Freeze
01-28-2008
Recently, I have had several people ask about how lakes freeze. I knew some answers, but as I researched deeper, the freezing of lakes can be complicated!

Variable milfoil
09-06-2007
Myriophyllum heterophyllum (Michx)
Environmental Factsheet Courtesy of NH DES


Didymo: The New Invasive
09-06-2007
The invasive species Didymosphenia geminata, or didymo was discovered in Vermont June 25th, 2007

Eurasian Milfoil
09-01-2007
Species Description for Eurasian Milfoil

Milfoil prevention efforts at LSPA
09-01-2007
Milfoil prevention efforts at LSPA began in 1998 when we established two aggressive programs (Weed Watch and Boat Launch Monitor) to provide early detection of invasive aquatic plants.

Gloeotrichia echinulata
09-01-2007
Gloeotrichia echinulata, a blue-green alga, has recently been blooming in Lake Sunapee.

Water Quality Parameters and Definitions
08-01-2007
Water quality parameters which are regularly tested by LSPA include the following:

Invasive Aquatic Plants
08-01-2007
LSPA’s volunteer weed watch program discovered invasive milfoil in Georges Mills in the summer of 2001.

Invasive Animals
08-01-2007
There are other aquatic invasive species in New England that LSPA is concerned with.

Algae Update
08-01-2007
There are five general types of algae in Lake Sunapee and surrounding ponds.

Water Quality Monitors
08-01-2007
LSPA has a long history of setting and maintaining standards of excellence in our water quality testing program

Milfoil "Save"
06-16-2007
On June 16th, LSPA Lake Host made another milfoil “Save” this summer.

State of the Lake, April 2006
04-01-2006
Aquatic Macrophytes (Plants) and Invasive Species

LSPA Lab Manager, Bonnie Lewis, testing samples.

LSPA Lab Intern measures clarity with a secchi disk.

Lab interns busy processing water samples.

LSPA's Water Quality Lab at Colby Sawyer College