Missouri Revised Statutes Title XL. Additional Executive Departments § 640.648. Right to private water systems and ground source systems retained, exceptions--right to rainwater collection systems retained

1. Notwithstanding any law to the contrary, all Missouri landowners retain the right to have, use, and own private water systems and ground source systems, including systems for potable water, anytime and anywhere including land within city limits, unless prohibited by city ordinance, on their own property so long as all applicable rules and regulations established by the Missouri department of natural resources are satisfied. All Missouri landowners who choose to use their own private water system shall not be forced to purchase water from any other water source system servicing their community.

2. Notwithstanding any law to the contrary, all Missouri landowners retain the right to have, use, and own systems for rainwater collection anytime and anywhere on their own property, including land within city limits.