The following LSPA practice tip was introduced at the June 2023 Membership Meeting, which was held in-person at the Westborough Doubletree hotel on June 20, 2023.  

Per 310 CMR 40.0006, Historic Fill cannot contain contaminants that are present as a result of on-site activities. If contaminants at a disposal site could potentially have originated from known historical operations or activities at the site, an LSP needs to first determine that contaminants are not from on-site activities before the contaminants can be attributed to Historic Fill.

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