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CITY OF EVERETT STORMYNA7 ER MANAGEMENT MANUAL <br /> Bioretentlon(Swales and Planters) <br /> DY�i ; , _ <br /> ' :a �'J �� ,. , � <br /> : ...��.�.�� � . . , '. � � . .� � � <br /> �m : M'�ni.A.nc.�enaa.r.naconawom <br /> 'F+Nw�mY . FNNn :• � � 1`, ♦ : , ��BM�m .`'. ., CoridMlantoClrekFor `.Th�tlhdWdEidif.; <br /> B Pond�ng Cracks or Failure in Cracks widar than'/:ir�ch or Vaull repatred or replaced so that vaults <br /> Aree concrete planter maintenanoe/inspection personnel determine meets design specifications and is <br /> reservoir tl�at the vautt is nat st�vdurally sound strudurally sound. <br /> B Ponding Failu2 in earthen Eronion(gullieslrilis)g�eater than 2 inches Eliminate source of erosion and stabilize <br /> Area reservair arou�d inlels.outlet,and along side slopes. damaged area(regrade, rock,vegelation, <br /> (embankments, erosion co�itrol blankel) <br /> dikes,6arms,and <br /> side slopes) <br /> g Panding Failure i�earthen Settlement g2eter then 4 inches(relative to Restore lo design height <br /> Area reservoir undisturbed sections of bertn) <br /> embenkments, <br /> dikes,berms,and <br /> side slopes) <br /> q Ponding Failure in earthen Downstreem tace ot bertn or embankment v✓et, Plug holes. Contad geotechnical engineer <br /> Area reservoir seeps or leaks evidenl ASAP. <br /> (embankments, <br /> dikes,bertns, and <br /> side slopes) <br /> A Ponding Failure in earthen Any evidence of rodent holes or water piping Eradicale rodenlslrepair holes(fll and <br /> Area reservoir around holes if faci!�ty acts as dam or bertn compacl) <br /> (embankments, <br /> dikes,bertns,and <br /> side slopes) � <br /> O Ponding Sediment or debris Accumuletion of sediment or debns Remove excess seQiment or debns. <br /> Area accumulation Identify and control Gie sediment source,if <br /> feasible. Faciliy should be free o(malenel. <br /> Mav contain standing water. <br /> A Ponding Rockery reservoir or Rock walls ere insecure. S�abilize wallt <br /> qrea walls <br /> Appendices <br /> F-54 <br />