The Citizens Statewide Lake Assessment Program (CSLAP) is a volunteer lake monitoring
program conducted by the NYS Department of Environmental Conservation (NYSDEC) and the NYS
Federation of Lake Associations (FOLA). Founded in 1986 with 25 pilot lakes, the program has
involved more than 200 lakes, ponds, and reservoirs and 1000 volunteers from eastern Long Island to
the northern Adirondacks to the western-most lake in New York, and from 10-acre ponds to several
Finger Lakes, Lake Ontario, Lake George, and lakes within state parks. In this program, la y volunteers
trained by the NYSDEC and FOLA collect water samples, observations, and perception data every other
week in a 15 week interval between May and October. Water samples are analyzed by certified
laboratories. Analytical results are interpreted by the NYSDEC and FOLA and utilized for a variety of
purposes by the State of New York, local governments, researchers, and, most importantly, participating
lake associations. This report summarizes the 2006 sampling results for Lake Truesdale.
Lake Truesdale is an 83 acre, class B lake found in the Town of Lewisboro in Westchester
County, in the Lower Hudson River basin of New York State. Lake Truesdale was first sampled as part
of CSLAP in 1999. The following volunteers have participated in CSLAP, and deserve most of the
credit for the success of this program at Lake Truesdale : Debbie Fink, Ray Morse, David Robinov,
Tricie Singer, and Gary Struve.
In addition, the authors wish to acknowledge the following individuals, without whom this
project and report would never have been completed:
From the Department of Environmental Conservation, N.G. Kaul, Sal Pagano, Dan Barolo, Italo
Carcich, Phil DeGaetano, Dick Draper, and Jeff Myers for supporting CSLAP for the past 20 years; Jay
Bloomfield and James Sutherland, for their work in developing and implementing the program, and the
technical staff from the Lake Services Section, for continued technical review of program design.
From the Federation of Lake Associations, Anne Saltman, Dr. John Colgan, Don Keppel, Bob
Rosati, Don Cook, Nancy Mueller and the Board of Directors, for their continued strong support of
CSLAP.
The New York State Department of Health (prior to 2002), particularly Jean White and Upstate
Freshwater Institute (since 2002), particularly Steve Effler and Jennifer Aicher, provided laboratory
materials and all analytical services, reviewed the raw data, and implemented the quality
assurance/quality control program.
Finally, but most importantly, the authors would like to thank the more than 1,000 volunteers
who have made CSLAP a model for lay monitoring programs throughout the country and the recipient
of a national environmental achievement award. Their time and effort have served to greatly expand the
efforts of the state and the public to protect and enhance the magnificent water resources of New York
State.