What does Act 451, Part 31 of the Water Resources Protection Act prohibit?

Act 451, Part 31 of the Water Resources Protection Act is primarily focused on the protection of Michigan's water resources, specifically addressing the discharge of substances that can be harmful to aquatic environments. The act aims to prevent any contamination of state waters that could pose risks to aquatic life, human health, and overall ecosystem integrity. Therefore, the prohibition on the discharge of harmful substances into state waters is crucial for safeguarding these vital resources from pollution and ensuring a clean and healthy environment for both wildlife and communities relying on these waters.

The other choices, while related to water management and protection, do not align with the primary focus of Act 451, Part 31. The act does not prohibit merely harmless substances, nor does it specifically restrict the use of pesticides in proximity to water bodies or regulate water consumption from treated sources in this context. This highlights the significance of understanding the specific provisions and goals of the legislation in protecting water resources.