The City of Worcester Department of Sustainability and Resilience (DSR) seeks a qualified Contractor to manage invasive aquatic vegetation in Salisbury Pond in Institute Park in Worcester, Massachusetts. The Contractor will remove moderate to dense growth of water chestnut (Trapa natans) with mechanical harvesting or hydrorakin. Any plants in areas not accessible by mechanical harvester or hydrorake may be spot-treated with herbicide. DSR will be responsible for obtaining approvals from the Worcester Conservation Commission under the Massachusetts Wetlands Protection Act. The Contractor will be responsible for complying with the Order of Conditions, and for maintaining certified applicators licenses and the waterbody License to Apply as required. The Contractor will perform the following tasks on a directed basis: (1) Trapa natans management: Eight (8) days of effort to remove water chestnut plants from Salisbury Pond through mechanical harvesting or hydro-raking. Treat plants inaccessible by mechanical harvester with herbicide as necessary. For bidding purposes, respondents should submit pricing assuming eight (8) days of management of water chestnut with mechanical harvesting methods, and two (2) acres of treatment with herbicide (imazamox).
