ALSO: The state Department of Health plans to end walk-in Covid and flu vaccine clinics by the end of the month; The opening of the adult recreational cannabis market in Vermont in October is prompting proposals of reforming the medical cannabis program; Officials estimate the second phase of an upgrade to Montpelier’s wastewater treatment plant will reduce the plant’s greenhouse gas emissions by around 2,000 metric tons per year by using methane from the solid waste to power the plant’s operations.