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A large compost pzle exists on thc west side of the wetland basin. Compost piles can contribuie <br />a significant amount of nutrients to a wetland basin that can affect the wetland's plant <br />communities by promotin� aggressivc species that are not susceptible to nutricnts. A review of <br />this site for water quality treatment should be completed to make sure appropriate treatment is <br />occurring prior to discharge to the wetland. <br />Commttnit Activif T'riari �strzriated CusC ,.: Comments; `` �' " <br />�::; X ' � � ;; ' <br />_ _ _- <br />CP-W 1 Plant native Low $ lOQ0.00 - Enhance vegetative diversity <br />vegctation along $4,b00.00 and aesthetics aiong the <br />boardwalk depcnding on boardwalk <br />area of lanting <br />CP-W 1 Control reed Medium $2,000.00 - Herbicide treatment to set-back <br />canary grass $8,000.00 reed canary grass <br />CP-W 1 Install Medium $aQ0-5,00� This high profile area is a great <br />interpretive depending on place to instail an interpretive <br />si�nage size, qvantity of siLn that explains purple <br />signagc and loosestrife and other invasive <br />matcrial vea. threatening wetlands. <br />CP-W 1 Review water High $1,500.00 Rcview of treatment of runoff <br />quality creatment from compost site <br />of compc�st site <br />Community CP-W2 <br />Shallow Marsh <br />Qualitative Rank: Medinm <br />Area: 2.5 acres <br />This is a narro�v drainage channel that leads from a ditch and cu�vert under Dale Street to an <br />outlet pipe at a;raveI access path. The open water areas near the c�annel exhibits the most <br />diversity in this basin. Cattail, arrowhead, duckweed, lake sedge, wool grass, spike rush, <br />willows, and water plantain are the most noticeable. The m.ajority of the basin is a reed canary <br />grass rnonotype. This is the area that is only temporarily flooded as most normal flows are <br />confined to the channel. <br />The ouElet under the trail on west end of Ehis basin allows water levels in the wetiand to be <br />lowered. Currently the basin contains reed canary �rass and draw down of the water levels in the <br />basin occurs between storm events. In order to control the recd canary grass, the water levels <br />will need to be maintained at 16-inches below top of trail outlet. This could be accornplished <br />Citv of Roserille gb <br />Parks Natiu-ctl Resncarce Ma�aagemertt <br />