2011 Water Quality Report (look at lakes region)http://des.nh.gov/organization/divisions/water/wmb/vlap/annual_reports/2011/documents/lakes-report-final.pdf
Click onto VLAP link for lots of useful information:
http://des.nh.gov/organization/divisions/water/wmb/vlap/index.htm
Clink onto Lees Pond Annual Data Link: (2010)
http://des.nh.gov/organization/divisions/water/wmb/vlap/annual_reports/2010/graphs/documents/lees_moultonborough.pdf