I wrote to the state about this, and they actually replied -- full response below, but the updated link to the page is:
https://www.des.nh.gov/sites/g/files...-graph2020.jpg
FULL EMAIL REPLY FROM NH:
Hello,
Thank you for completing the website satisfaction survey. I wanted to reach out to let you know that the information you were looking for is available in our new publication library. There are two ways to navigate to this information: it is available using an image link near the bottom of the
Dam Safety, Maintenance and Management page; or you can use the site-wide search and use the keywords “lake levels.” The historical Winni data is listed first by year.
Here is the direct link that you can find on the Dams webpage:
https://www.des.nh.gov/resource-cent...bcategory=Dams. As the data is listed alphabetically by year, the older historical data shows up first but the current data is on the third sub-page.
Please let me know if you have any other questions or concerns!
Cheers,
Kathryn Michener
Assistant Public Information Officer
New Hampshire Department of Environmental Services
29 Hazen Drive
Concord, NH 03301