House Bill 4095 establishes the Headwaters Water Control District as an independent water control district and public corporation in St. Lucie County, Florida. The bill outlines the district's geographical boundaries, which cover approximately 19,691 acres, and specifies the methods for determining these boundaries through directional and distance measurements. It sets minimum charter requirements, including the composition and election process for a governing board made up of five members elected by landowners on a one-acre, one-vote basis, with provisions for additional votes based on total acreage. The bill also addresses board member compensation, administrative duties, financial disclosure, and procedures for issuing bonds, ensuring compliance with existing Florida statutes.

Additionally, the bill assigns maintenance responsibilities for specific canals, including the Lateral "U" Canal, Main Canal, and Park Lateral Canal, to both the Headwaters Water Control District and the Fellsmere Water Control District. It includes provisions for indemnification between the districts regarding any obstructions affecting water flow and drainage, and allows for corrective actions if one district fails to maintain the canals. The bill mandates notification to the City of Fellsmere before seeking future legislative amendments to the charter and includes a severability clause to maintain the enforceability of remaining provisions if any part of the act is deemed invalid.