Permiting is nessesary

 DASH utilizes a similar suction device as suction harvesting, but with the sole purpose of transferring hand-picked target species by a diver to the surface, eliminating the need for the diver to resurface with the harvested species. 

The suction device acts as a conveyor, transporting the target species to a boat or shore station where they are isolated and disposed of. 

 
In order to employ this technology, obtaining a mechanical aquatic plant management permit is essential to minimize potential adverse effects on the native aquatic plant community. 

Obtaining such permits typically requires about two weeks for approval in advance. Additionally, the Department of Natural Resources (DNR) may request a supervised pre-site inspection within the permitted area.

While most dredging and D.A.S.H projects will require a permit, there are some instances where you may not be required.

Agriculture Dredging Exemptions

 An agricultural drainage exemption applies to artificial channels specifically designed for draining water from agricultural lands. These channels, commonly known as ditches, are exempt from dredging permits if they were not historically navigable streams before excavation. 

Artificial Waterway Dredging

Dredging permits are unnecessary for water bodies lacking a historical identity as lakes or streams, or any connection to such water systems.

De Minimis Exemption

  Individuals are exempt from acquiring a dredging permit if the total material removal does not exceed 2 cubic yards within a single year, roughly equivalent to the capacity of a small dump truck. 

Great Lakes Shoreline Maintenance

  Dredging permits are not mandatory for activities involving grooming, leveling, or vegetation management along the Great Lakes shorelines. 

Manual Dredging

  Owners of riparian properties can conduct manual dredging, involving the annual removal of up to 100 square feet by 1 foot deep using hand tools or handheld devices. Compliance with all other exemption checklist requirements is necessary. 

 Dredging projects aim to remove material from lakebeds or streambeds that may pose a variety of risks to water quality and the aquatic environment. 

Implementing dredging projects can pose logistical challenges and come with significant expenses. Initiating a dredging endeavor may entail tasks such as sampling contaminated sediment, employing in-water sediment control measures, and determining appropriate dredge spoil disposal methods. 

At Riese Aquatics, we manage all aspects of the process, including sampling, sediment control, disposal, and erosion control, ensuring comprehensive and efficient project execution. Dredging permits can take roughly six months in order to get approval from the DNR. 

In the event you need dredging services, reach out ASAP so we can get started on your application. Once you have received the permit, it's typically valid for another five years.

  The dredging pre-application information form serves as a valuable initial step in project planning. 

The Department of Natural Resources (DNR) advises engaging with private consultants or contractors experienced in dredging projects to obtain cost estimates and insights. 

It is recommended by the DNR that project planning should be thorough enough to ascertain estimated costs, material volume, chosen methods, and potential disposal locations, if necessary, before scheduling a pre-application meeting.

Before submitting a general or individual permit application for dredging projects, a pre-application meeting may be required.

Depending on the nature of the project, you may need to provide additional documentation such as maps, environmental impact assessments, and engineering plans. 

 The DNR will evaluate your application to ensure that the proposed dredging project complies with environmental regulations and will not harm sensitive habitats or species. 

 In some cases, the DNR may require public notice of the proposed dredging project to allow for input from local stakeholders.  

  If your permit is approved, you will need to comply with any conditions or restrictions imposed by the DNR. 

The DNR may also require monitoring or reporting to ensure that the dredging activities are conducted in accordance with the permit.  

 It's essential to consult with the Wisconsin DNR early in the planning process to ensure that you understand all requirements and can provide the necessary information for your dredging permit application.