Many states have regulations on weed control products. However, they are frequently unable to enforce them. We have customers in every state.
You will not need a permit if you are doing a small-scale home project.
Per The Washington Department of Fish and Wildlife, here are their requirements:
Taken from Pamphlet WAC 220-660-290 Aquatic plant removal and control found here: https://app.leg.wa.gov/WAC/default.aspx?cite=220-660-290
(5) Bottom barriers and screens:
(a) A copy of the current Aquatic Plants and Fish pamphlet available from the department serves as an HPA (permit), unless otherwise indicated, and must be on the job site at all times. This can be found here: https://wdfw.wa.gov/publications/01728
(b) Bottom barriers or screens can help eradicate an early infestation of aquatic noxious weeds and are best used in small, confined areas where control of all plants is needed.
(c) Bottom barrier or screen projects to control or remove either aquatic noxious weeds or aquatic beneficial plants must comply with the following technical provisions except where otherwise indicated:
(i) Because of potential impacts to sockeye spawning areas, the department requires advance authorization for activities in Baker Lake and lakes Osoyoos, Ozette, Pleasant, Cle Elum, Sammamish, and Washington. If authorization is given, the department may require mitigation through a written agreement between the applicant and the department for impacts of the activity to the spawning area.
(ii) For removing and controlling aquatic noxious weeds, the bottom barrier or screen material can cover no more than fifty percent of the length of the applicant’s shoreline. The department requires advance authorization for bottom barrier or screen projects covering a larger area. Bottom barrier or screen and anchor material consisting of biodegradable material may be left in place. Within two years of placement, unless otherwise approved by the department, completely remove bottom barrier or screen and anchor material that is not biodegradable to encourage recolonization of aquatic beneficial plants.
(iii) To remove or control aquatic beneficial plants to maintain an area for boating or swimming, a bottom barrier or screen and anchor material may be installed along no more than ten linear feet of the applicant’s shoreline. The department requires advance authorization for bottom barrier or screen projects for boating and swimming access projects covering a larger area.
(iv) Securely anchor a bottom barrier or screen material with pea gravel-filled bags, rock, or similar material to prevent billowing and movement off site.
(v) Regularly maintain a bottom barrier or screen and anchors to ensure the barrier or screen and anchors are functioning properly. Barriers or screens that have moved or are billowing must immediately be securely reinstalled or removed from waters of the state.
(vi) Existing fish habitat components such as logs, stumps, and large boulders may be relocated within the water body if needed to properly install the bottom barrier or screen. Do not remove these habitat components from the water body.
(vii) If at any time, as a result of project activities, a person observes a fish kill or fish life in distress, a person must immediately cease operations and notify the department and the Washington military department emergency management division of the problem. A person may not resume work until the department gives approval. The department will require additional measures to mitigate the prospecting impacts.
(viii) Do not use contaminated equipment, which can spread plant parts. Thoroughly remove and properly dispose of all viable plants and plant parts from the equipment before using the equipment in waters of the state.
If you find out that you have other permit issues and solutions, please do us a favor and let us know at info@lakebottomblanket.com