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Islander · 06-12-2007, 09:46 AM

There are several people that have been on the island more than 80 years. They tell a different story about the history of the lake and if it is better or worse now. But their observations, like yours, are anecdotal. The real evidence comes from scientific studies done repeatedly over many years at the same locations. The data does not go back as far as we would wish, but the State and UNH both have monitoring programs for the lake.

There is lots of data available. This link is to an easy to read summary.

http://pubpages.unh.edu/~jjencks/Fin...t%20Jencks.htm

The water quality is good, the trend in the bays is bad.

"Concluding from this data, the overall lake water quality over the years is pristine, but there are local regions that do show signs of impairment. The worst region would be Center Harbor. There is an obvious high to low trend in that area and the region with the most upsets to the pristine criteria. Most of the regions have at least ten years of data. It is important to continue to monitor the lakes water quality, so short and long term effects are noticed and can be addressed. To draw a better conclusion on the impairments, all parameter data should be analyzed and compared as some parameters are affected by others. "

06-12-2007, 09:46 AM	#173
Islander Senior Member Join Date: Jan 2005 Posts: 321 Thanks: 0 Thanked 9 Times in 3 Posts	There are several people that have been on the island more than 80 years. They tell a different story about the history of the lake and if it is better or worse now. But their observations, like yours, are anecdotal. The real evidence comes from scientific studies done repeatedly over many years at the same locations. The data does not go back as far as we would wish, but the State and UNH both have monitoring programs for the lake. There is lots of data available. This link is to an easy to read summary. http://pubpages.unh.edu/~jjencks/Fin...t%20Jencks.htm The water quality is good, the trend in the bays is bad. "Concluding from this data, the overall lake water quality over the years is pristine, but there are local regions that do show signs of impairment. The worst region would be Center Harbor. There is an obvious high to low trend in that area and the region with the most upsets to the pristine criteria. Most of the regions have at least ten years of data. It is important to continue to monitor the lakes water quality, so short and long term effects are noticed and can be addressed. To draw a better conclusion on the impairments, all parameter data should be analyzed and compared as some parameters are affected by others. " Last edited by Islander; 06-12-2007 at 10:34 AM.