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DRAFT <br /> assumed that the sites will have reached a stable and acceptable proportion of weeds, but at the <br /> same time, it is anticipated that weeds will continue to be introduced to the sites and that they <br /> will remain an ongoing problem. Each of the three sites analyzed have been allocated <br /> approximately two weeks of a 5 person crew to hand pull weeds in the wetland areas, remove <br /> woody species, and paint stems. This is equivalent to one to two acres of coverage although <br /> most weeds will be concentrated in several spot locations. Mowing will also be used in the <br /> wetland when possible. In addition, control mechanisms for invasive exotics in the upland will <br /> generally occur through mowing. An area of one to two acres is budgeted to be reseeded with <br /> native species each year. <br /> Hand weeding is very expensive and would be used less if spot spraying were available as a <br /> control mechanism. At this juncture, BLM restrictions forbid any use of herbicides. <br /> Certain sites also require removal of woody species to prevent their converting the wetland. It is <br /> expected that most of this will be successfully accomplished through mowing and/or hand <br /> removal once the current sites are stabilized. <br /> Long -Term General Maintenance Assumptions <br /> All capital improvements on the sites will be maintained as is. This includes trails, signs, <br /> boardwalks, culverts, and bridges. A modest amount of educational materials will be provided <br /> for the public. Interaction between managing entities (CRMP) will be supported. Office, <br /> administrative and equipment costs will be included. <br /> Site Specific Activities- DANEBO COMPLEX <br /> Background <br /> The three units of the Danebo complex, Oxbow East, Balboa and Beaver Run are generally <br /> located at the northwest corner of Highway 26 and Danebo Avenue. Several industrial <br /> complexes front the property. With the adjacent Highway 26 and the bike trail, portions of these <br /> sites are very exposed to the public. There are trails, an overlook and signage to maintain. About <br /> 70 percent of Balboa is wetland or upland prairie and 30 percent is forested scrub or emergent <br /> wetland which is representative of other sites at Danebo. Water control structures in Balboa and <br /> Beaver Run must be maintained. A number of invasive- exotic species are to be controlled. <br /> Approximately 200 feet of fence is assumed on the west of the site to protect from an- adjacent <br /> parking lot. <br /> Biotic Survey <br /> Long term monitoring will focus on determining changes in the: <br /> • Size and depth of wetlands using aerials, water gauge monitoring and annual hydrologist <br /> review. <br /> • Area and percent cover of rare plants species using five year monitoring schedule <br /> • Area and percent cover of invasive exotic plant species using four qualitative reviews a year <br /> plus quantitative review using five year monitoring schedule. <br /> 05/08/01 <br /> 4 <br />