correspondence re pool/wetland buffer

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October29, 2007 Procedures and materials needed to establish native grasses and wildflowers and manage invasive species in the upland buffer for the Olsen Residence in Orono, MN A. Project overview: 1. The portion of the buffer that is currently turf grass will be treated with herbicide, seeded with native grasses and forbs, and protected with erosion control blanket. In this plan, this area will be referred to as the Herbaceous Buffer, and it is approximately 1500 square feet in size. 2. The portion of the existing wetland adjacent to the Herbaceous Buffer is vegetated with reed canary grass and will be treated with herbicide, seeded, and blanketed in sequence with the Herbaceous Buffer. In this plan, this area will be referred to as the Wetland Edge, and it is approximately 500 square feet in size. 3. The remainder of the wetland buffer is wooded, and much of it contains European Buckthorn. This area will be referred to as the Wooded Buffer in this plan. European Buckthorn will be removed from the existing wetland and the Wooded Buffer. 4. Two growing seasons of maintenance is included in this proposal, which includes various techniques for invasive species management in the Herbaceous Buffer, and fall oversprays in the Wooded Buffer and wetland to control buckthorn seedlings. B. Site Preparation (Herbaceous Buffer and Wetland Edge): 1. Apply RodeoO and Garlon 3A0 herbicide as per manufacturer's directions to actively growing non native vegetation. Allow a minimum of 20 days before disturbing the vegetation with other procedures. 2. If necessary, conduct a controlled burn to remove dead vegetation in the buffer area. If this is not possible, mow the dead vegetation. 3. Respray vegetation with RodeoOO herbicide when regrowth of vegetation reaches approximately 6" to 10" in height. Allow a minimum of 10 days before disturbing the vegetation with other procedures. 4. Lightly till the soil to create an open seedbed using a minitiller/ dethatcher. 5. Hand rake to create a smooth and firm seedbed.