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� <br />I <br />No. 7 — Ener�y Dissipaters <br />Malntenanco �Detect <br />Compononts <br />Condilions When Maintonance Is <br />Neaded <br />Rock Pad Missing or Only one layer of rcek exists ebove <br />Moved Rock nativo sdl in area Gvo squaro feet or <br />larger, or any exposuro of nalive soll. <br />Erosiun Soll erosion in or adacent to ra;k pad <br />Results Expocted Whon <br />Malntenance is PerTormed <br />Rock pad replaced to Aesign <br />stano�r.Js. <br />Rock pad replaced to design <br />standards. <br />Dispersion Trenr.h Pipe Accumulaled sodiment Ihal excaeds Pipe Geaned/flushod so thnt it <br />Plugged with 20°,6 of tha design deplh. malches d�sic�n. <br />Sedirnont <br />Not Visunl ovidenca of waler discharging at Trench redesi�nad or robuifl lo <br />Uischarging concentratod points niong Irench (normal slandards. <br />W�ter condilion is a'shoet Ilow" of water along <br />Properly trencL). Intent is lo prevent erosion <br />damage. <br />Perfnralions Over il2 d periora�ions in pipa are Pedorated pipo cleaned or <br />Pluc�c�ed plupged wilh debris end sediment. replacod. <br />Waler Flows Ataintenance p�rson obsorves or Facility rebuilt or redosigned lo <br />Oul Top of receivos crediblo reporl of wator Ilowinc� slandards. <br />'Dislributor' oul during eny slnrm less Ihan �h� design <br />Catch Dasin. storm or ils causing or eppoars likely to <br />causo damage. <br />Receivin,y Water In receivinp nre� is causing or hes No danger ollandslides. <br />�rea Over- polential of causing landslide problems. <br />, Saluralr,d <br />Alanhole/Chamber V'orn or Structure nissipating Ilow deterioretes to <br />Cnma�ed 1!2 of original sizo or any concenlrated <br />Post, wom spot oxceeding one square foo� <br />Baffles, Side whlch would make strucWro unsound. <br />of Chamber <br />011ier Sae'Catch Dasins" (No. 5). <br />Defr.cls <br />4-3R --- -- <br />Vohime V— Runoll Treafinent BMPs <br />Slructure replaced to design <br />slanCards. <br />Seo'Catch 6asins' �N��. 5�. <br />A�igusf 2001 <br />� <br />