Specifications include, but are not limited to: The targeted management areas in Luther Reservoir are anticipated to be approximately 13 acres based on prior mapping. Water chestnut beds are widely distributed in the reservoir and have likely expanded since the last mapping effort. Therefore, bidders shall anticipate the potential need to complete harvesting work anywhere in the reservoir, including both shallow (i.e., less than two feet) and deeper water, with a potential need for more than 13 acres of management. The City currently expects to collect updated mapping of water chestnut beds in June 2023 under separate contract. This information will be provided to the successful bidder prior to initiation of the harvesting work. Target areas will be managed by mechanical harvesting and hand harvesting methods. Bidders may propose their preferred mix of these two approaches to achieve the desired management outcome. However, all harvesting must be completed no later than August 15, 2024. It is anticipated that access will be provided through an existing ramp located adjacent to the Luther Reservoir Dam at 1 Todd Drive in Attleboro. Bidders should assume that the aquatic harvester vessels and any other support vessels or equipment will need to be mobilized from this location. Deliverables to be provided by the successful bidder will include the following: 1. Health and Safety Plan (HASP) to be provided to the City prior to initiating work. 2. Daily progress reports to the City. Progress reports shall include an estimate of the water chestnut harvested that day, a summary of any problems encountered and proposed solutions, and any updates to the project schedule or staffing plan. 3. Final management report for review and comment by the City once the harvesting program has been completed. The successful bidder shall subsequently issue a revised report, reflecting the City’s comments and edits, if any. The report shall include the following, at a minimum: a. Description of the methodologies used to complete the work. b. Identification of the management program duration. c. Maps showing the areas harvested by method (mechanical vs. hand). d. Tally of the daily and total wet volumes of water chestnut removed, in cubic yards. e. Photographs of the management process and results. These should include representative images of the harvesting methods and documentation of pre- and post-harvesting conditions in the reservoir and at the access ramp. f. Description of any challenges encountered and lessons learned. g. Copies of daily management logs and/or progress reports. h. The use of a hydro-rake to remove water chestnut in shallow areas is acceptable. i. The Water Department will provide loader support and dewaters the water chestnut biomass onsite before transferring to a final compost area.