Pre Bid Conference: Pre Bid Conference: The complete Invitation for Bids can be found at https://www.grafton-ma.gov/home/news/ifb-polymer-system-modifications. Bulletin Desc: Bid Documents will be available through Projectdog on Wednesday, May 19, 2021. Hard copy bids will not be accepted by Projectdog or the Awarding Authority. Log in and enter the Project Code 843916 in the search bar and select ?Acquire Documents? for a free, downloadable bid set. Purchaser: William Blake Organization: Town of Grafton Ship-to-Address : William Blake 30 Providence Road Grafton, MA 01519 US Email: blakew@grafton-ma.gov Phone: