The Story of Kensico -- Additional Resources
| The Building of Kensico Dam | from the Columbus Avenue School in Valhalla |
| Dept. of Environmental Conservation | New York State Department of Environmental Conservation |
| EPA Region 2 - NYC Watershed | US Environmental Protection Agency |
| Drinking Water Under Attack | Threats to the water supply from land development - Natural Resources Defense Counsel |
| Westchester County Historical Society |