Specifications include, but are not limited to: Task 1: Aquatic Vegetation Surveys 1.1 Pre-Treatment Survey Conduct one (1) pre-treatment aquatic vegetation survey in both Lake Erie and Lake Campbell in early June 2024 to identify invasive aquatic plants and map the density and distribution of submersed aquatic vegetation throughout the lakes. Surveys should include surface observation, as well as the rake-toss technique along transects, GPS coordinates, and sonar BioBase or equivalent mapping technology to accurately map plant densities. The Contractor shall notify Skagit County staff in writing no less than three (3) workdays in advance of the survey date. The Contractor shall be prepared to accommodate county staff and/or at least one (1) Lake Management District Advisory Committee member during all survey operations. Conduct an inspection of the four (4) private ponds on two (2) residential properties along the shorelines of Lake Campbell to look for Milfoil with permission of the property owners. Share the survey results with county staff, including recommended actions and estimated costs that may serve as the basis for developing a task assignment for additional work under this contract. 1.2 Post-Treatment Survey Notify Skagit County staff in writing no less than three (3) workdays in advance of the survey date. The Contractor shall be prepared to accommodate county staff and/or at least one (1) Lake Management District Advisory Committee member during all survey operations. If budget allows, and if approved by county staff, conduct a brief mid-summer observational survey at Lake Erie and Lake Campbell to determine the degree of a secondary treatment (if necessary) in late July. Conduct at least one (1) post-treatment aquatic vegetation survey in Lake Erie and Lake Campbell in mid-September to evaluate the efficacy of the aquatic herbicide treatments and to look for any new invasive aquatic plant growth and determine if follow-up treatments will be necessary. Communicate the survey results to county staff (email preferred), including recommended actions and estimated costs that may serve as the basis for developing priority tasks to stay within budget and additional work as the budget allows under this contract.