Secchi Dip-In

June 23 - July 15, 2007

MA Results: 1998 1999 2000 2001 2002 2003 2004

The Great North American Secchi Dip-In is a demonstration of the potential of volunteer monitors to gather environmentally important information on our lakes, rivers and estuaries. To participate this year, visit http://dipin.kent.edu/

The concept of the Dip-In is simple: individuals in volunteer monitoring programs take a Secchi disk measurement on one day in a period surrounding Canada Day and July Fourth. Individuals may be monitoring lakes, reservoirs, estuaries, rivers, or streams. These Secchi transparency values are used to assess the transparency of volunteer-monitored lakes in the United States and Canada.

In 2002, MassWWP received data for 17 water bodies, see results below. Water transparency varied between 0.8m (Lower Lake in the Connecticut River watershed) and 8m (Jenkins Pond on the Cape).