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No.4—Control StructurelFlow ResVictor <br /> Malntenance Defect Condition When Maintenanceis Needed Results Ezpected <br /> Component When Maintenance <br /> is Performed <br /> Generel Tresh and Debris Material ezceeds 25%of sump depih or 1 Conlrol sirudure <br /> (Indudes Sediment) foot beiow on6ce p�ate. onfice is not blocked. <br /> All trash and debris <br /> removed. <br /> Slruclurel Damage Strudure is not securely atlached to Struclure securely <br /> manho�e wall. attached to wail and <br /> oullet pipe. <br /> Strudure is not in uprighl position(allow up Slrudure in corred <br /> l0 10%from plumb). position. <br /> Connections to outlet pipe are not watertight Conneclions M outlel <br /> and show signs of r�sl. pipe are water tight; <br /> sWcture repaired or <br /> replaced and works <br /> as desiqned. <br /> Any holes--other lhan designed holes—in lhe Slructure has no <br /> sW cture. holes other than <br /> designed holes. <br /> Cleanuut Gate Damaged or Missing Cleanout gale is not watertighl or is missing. Gate is watertight <br /> and works as <br /> designed. <br /> Gale cannnt be moved up and down by one Gate moves up and <br /> maintenance person. down easily and is <br /> watertighl. <br /> Chain/rod leading lo gate is missing or Chain is in place and <br /> damaged. works as designed. <br /> Gate is rusted over 50%of its surtace area. Gate is repaired or <br /> replaced�o meet <br /> dEsign standards. <br /> Onfice Plate Damaged or Missing Conirol device is not woricing propedy due ta Pla�e is in place and <br /> missing,out of place, or bent orifice plate. works as designed. <br /> Obslruclions Any trash,debns,sediment,or vegetation Plate is free of ali <br /> blocking ihe plate. obstrudions and <br /> wo�ks as designed. <br /> Overflow Pipe Obstructions Any trash or debris blocking(or havin;the Pipe is free of all <br /> potential of blocking)the oveAlow pipe. obstrudions and <br /> works as designed. <br /> Manhole See'Closed See'Closed Detention Systems'(No.3). See'Closed <br /> Detention Systems' Delention Systems <br /> (No.3). (No.3). <br /> Calch Basin See'Catch Basins' See'Catch Basins"(No.5). See'Catch Basins <br /> (No. 5). (No.5). <br /> Febn�ary 2005 Volume V—Runoff Treatment BMPs 4-35 <br />