CONCORD, N.H. (AP) - Volunteers are gathering water data from New Hampshire lakes in what's being called an annual "Dip-In."

Starting Saturday, volunteers are using special disks, called Secchi disks, to gather water transparency data. The gathering ends July 20.

The first Dip-In began in 1994 in six Midwest states. It has since expanded to include more than 41,000 records on more than 7,000 separate waterbodies across the country and in Canada.

Dip-In volunteers routinely monitor all types of waterbodies, including lakes and streams as a part of their normal monitoring program. New Hampshire has over 900 lakes.

Volunteers provide the information to the Department of Environmental Services.

Previous Dip-Ins have provided valuable information on the nation's water quality.


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