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Efficient irrigation SIB-12 <br /> _ .. <br /> ~ <br />~ ~ <br /> ~r ~ <br />- <br />- <br /> ~ ~ <br /> ,, <br /> <br /> i' <br />7{ ~ i <br />. <br />- -~ <br /> ~ <br />~. <br />M <br />a <br />~ <br />~ ~ <br />= <br /> <br />k <br />»rs <br />i <br />,s~ , ~,. <br />; <br />~µ <br /> <br /> <br />_.. _ __ . ~ _~ ~:...._~... ~ ._.~_~. M~ <br />..~ ~. <br />. <br />~- <br />E <br />:,..,r.= <br />_ ~ ~ ~ ~~ ~ <br />. <br />..... ~. ~. . <br />Design Ob~ectwes <br />/ F~taximi~e Infiltrateon <br />/ ~f~Vid2 Retenfiidn <br />/~ Sfi7W {~f1~30~ <br />inirnize Impervious Land <br />Coverage <br />Prohibit ~unlping oP Improper <br />ItAatenals <br />Contain Poliotants <br />Collect anct Convey <br />Description ~._~._.~, _~~. ~,.~,,....~.x <br />Irrigation ~vt~ter provided to ialydscapecl areas n7a~- rescllt in excess irrigation tv<rter heiul; <br />crlrlce~~ecl into sfc3rnltv~Itcr drainage st:5tes. <br />Approach <br />Frojc-ct ~l~tn dc~5ihns f~c3r cl~ti-r>.Icl~Ime.nt <~ncl recle ti•t:lo~Snlent shotilcl inc~ludc; ~cpplicaticln Iilethc~c3s clf~ <br />irrigatc~Il Evatc:r #II4It n~illimire runoff of excess irril;a#ic3n Lv~~ter into the Starln~v~€ter convc~.yrrt?ce <br />Sy'SteIII. <br />Suitable Applications <br />.il~prc,~priate al~llliczltians incllydc~ resiclerltial, canltl-lerciai grid incltisri~t areas 1~larlrled t~~a~ <br />clcveloprncnt cjr rcdcvelopnlellt. ~De#aehed re:;idcntial si~Igle-f'a~Ildi~ hanlcts Glrc tlrpicalle= <br />c.kclt;rierl f'rorn this racluire:n~en.) . <br />Design Considerations <br />Designing 11"ew ~nstaYtatic~~ts <br />"F'he folla~ving methods to reiltiee exeYSSive irrig~~taazl rurlr~ff sl~acdd hc: consic:lered; and <br />il~col~parated and implellYtir~ted where detern~inc~d a}~plica Ile and feasihle 13y the' Pc:rlni#fi.ce: <br />^ I?mplati• rain-#rigp;ered shutclff deg-ices to prevent irrigation after l~recipitatiran. <br />^ L~esil;n irrigation s}>sYenls tc3 each landscape aI'C:~I'S specific ~~~at:er rerizirecnents. <br />^ Include design featuring flaw rcadtlcel-s or shutoi`f valve;; triggered 1>~- a pressure drop to <br />corrtrol water lass in the event of broken sprinkler heads or lines. <br />^ Illrplen°~ent landscape plans ct~nsistent ti,~ith Cou~~~ty or ~'itk watex cansc+rr~ition resolutions, <br />sti-hich nla~- incllrclca pI•tlv75ic>n of water sensors, prol;ramrnahle <br />irril;atian tillles (~c~r short: cycles), ete. <br />_~ '~Calitornia <br />Stormwater <br />Quality <br />Assatiatiart <br />Jant,ary 2QL~3 Ca[~forr~ie 5tdrrrt~rt~tter E3MP H~nrSbook I cs` 2 <br />t'Jev. ~ev~Fo~rment artd ~ier~~v~opms.rtC <br />www.cabmpE;arldbo~ks.rvn-s <br />20D-36 <br />