03/18/2026
DNR and Mobile Fiberglass and Gelcoat Repair on Docks.
This post is long but it deals with a very important matter and one that we get calls on frequently.
We often get calls asking if we do mobile work on docks. We understand that it seems a hassle to take the boat out and transport it.
The problem is that it is illegal to perform the work on the dock. To explain why it is illegal, we are including this information.
In most cases,
It is illegal to perform fiberglass and gelcoat repair directly in the water at Lake of the Ozarks due to regulations designed to protect water quality. The practice is generally prohibited because of the risk of toxic materials and microplastics entering the lake.
Federal and state agencies, including the Missouri Department of Natural Resources (DNR) and the Environmental Protection Agency (EPA), mandate that hazardous materials, chemicals, and solid waste be prevented from contaminating waterways. Since fiberglass and gelcoat repair involves sanding, chemical resins, and other materials, the waste produced is considered a pollutant.
Here are the key regulations that prohibit this type of repair in the water:
Missouri Water Quality Standards (10 CSR 20-7.031): This state law prohibits discharging pollutants into Missouri waters. It states that waters must be free of "oil, scum, floating debris... and solid waste".
Missouri Solid Waste Management Law (Section 260.210): This law requires that solid waste, including materials from damaged boats, must be removed from the water and properly recycled or disposed of.
Clean Boating Act (CBA): Federal regulations enforced by the EPA and U.S. Coast Guard require boaters to use environmentally sound management practices to prevent incidental discharges of pollutants into the water.
Ameren Missouri regulations: Ameren manages the shoreline at the Lake of the Ozarks and has specific requirements for work done on docks and adjacent to the water. All work must comply with environmental laws.
Permitted alternatives for repair
Professional marine service: The safest and most compliant option is to have the boat professionally serviced at an authorized boatyard or marina that has the proper equipment to contain and dispose of waste materials.
Dry-docking: A professional can haul your boat out of the water and perform repairs on dry land, where proper containment procedures can be followed.
Minor, superficial repairs: A small, DIY gelcoat repair on a dry-docked boat may be permissible, but you must ensure all sanding dust and chemical waste is captured and disposed of properly. Never let any waste materials enter the water.
Please be careful when someone says they can fix your repair at your dock.
There are several local businesses who have shops to do the work.
If you choose not to use us, please do choose another reputable shop.
