Yes, legislation regarding wastewater is necessary to protect public health, safeguard the environment, and promote sustainable water management practices. Wastewater can contain harmful pollutants and pathogens that can pose a risk to human health and the environment if not properly treated and managed. Legislation can help ensure that wastewater is treated and discharged in a safe and responsible manner, and can also promote the adoption of water conservation and reuse practices, which can help mitigate the impacts of water scarcity and climate change.