Item 48

Authorize to enter into a retroactive sole source contract amendment with GZA Geo Environmental, Inc , Norwood, MA (originally approved by G&C on 5/1/24, item #121, archived document ), by extending the completion date from April 1, 2026 to October 1, 2026 to complete an assessment of south-central New Hampshire community water supplies to evaluate the potential cost to meet the lowered PFAS MCLs. Effective retroactively to April 2, 2026 upon G&C approval through October 1, 2026. This is a no cost time extension. 100% Federal Funds