HB 609 addresses wastewater management in cultivated oyster mariculture operations. It requires that general aquaculture permits issued by the Texas Commission on Environmental Quality (TCEQ) allow for discharges of waste related to cleaning oyster-growing structures. The cleaning must occur at authorized locations using unaltered water from those locations, ensuring environmentally safe practices. Permit holders must adhere to conditions established through consultation between TCEQ and the Parks and Wildlife Department, safeguarding aquatic ecosystems while supporting the oyster mariculture industry.