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<br />Efficient Water Use in
<br />
<br />Commerce and Industry
<br />Ahhuu~h \\.llef dchwn.'", w bU~InI''''''~,
<br />mtlw.tnc", JllJ mslltul\OllS l,lp ks~ Ih.m
<br />2 pt'll.t'm ()f (.~ll\lrJdos ,luibhk w,ller
<br />fe"OUT\X,- tt1t'~ dallll J sUIN;lnUal [)oXll\'11 1,1
<br />mUnicipal sllpphcs lfl'TI'X.1Il1plc. 1S-}c't p"T.
<br />n'l\I \)f mumupal \uta ddl\'i:nc" In I\:'l1\l'T,
<br />&'uldcr, ,mJ C"!,'T;ld,' ....rnn_~s\ Thadllll.'
<br />u...mg w.lta ml'[t' 111_,"e!\' In ,'.'mown'", ,md
<br />mdu~ry <';,\n .:,'ntnhu(l' 51~mllLmlh' W
<br />~Il\'lchmg mUnl,.tpJl W31\'r supp\k<,
<br />[)enH~r \\'.ltn h;\" ctlmplkd st,\lls\lC,
<br />1m how bu~illt'S~". bel\HI"''', and InstltU-
<br />tlons In Lbo scrVKC ,UCJ ll<.t:' water \hgurc
<br />3) In lhl' lkn\'t'T ml'tro .He;\. f"ughly h.11f
<br />I,l commaL'l,l] ,lmll1ldustn;11 WJler ddl\'-
<br />l'n,'S .ue tl~'J tl.r n'I'[1I1~ .md hl',11m,.; .lnd
<br />1l1d()()T plumhm~ Lmd"",ip,: Im~,Ill(\n.
<br />rro,:cs",m~ \.m,mul.ldllnn~), ;.mJ mis...d-
<br />l.meoll~ us...'~ nl.lkt' up ilh' olha hJlI
<br />
<br />Heating and Cooling
<br />COl)lin..:and he.llin!: S~Sll'llb.ll"e lht'l.1r~-
<br />eSI w,uer U~~ In Iyplc;ll clmmwr..'lal. IIlJlb-
<br />mal. and lIhtllUlIl'llal f.1..'lllt""~ c......,II1l~ t<.l\\.
<br />t'T~ U'>l' lar~,' \'"lume5 ,-,I W;lIt'f ht'GIt1:'>l' Ihl'~
<br />rel1Kl\T h....lll:oy ..'\.I(X'f;lli,m SlIlrJc-p<bS, ,'r
<br />on(t"-throu~h, ((,,-,1m,!.?, ,;,\....I..'m.. ;m" the ml1St
<br />w;\ter-mleIbIW lIt ,111 Cl,,-,hn.~ meth,x1.. In
<br />tht'5C S\'SIl'lTb. \\'.lll'[ IS dm'Cl('d lhwugh a
<br />piece of cqUlrmt'11! I~nce ,md then Jrallleci
<br />1ll1<..thcwJ....tl'w.ltCr..ystcm
<br />\\';ltcr em ht. l,lst fwm l,-,..,!ill,!!. h'\\,'~
<br />in three ways e\'a(X'r:ull'J1. hln.J-d!. ,md
<br />drlfL The largest \'olume 1,1" \\',ua bIos!
<br />through c\",I]X'ra[)OI1 Bkcd-l,ff tn\"l,I\"e'" dls,
<br />l'hargln~ a ]X>nllln l,l" thl' Clrculatmg W;.l!cr
<br />to rt:ml'\T :5USpcnJl'J .lnJ dl".;"k"J <;.l,hJs
<br />Dnrt reters III W,ltn Jr,'p1cts ,llld mlsl ,';Ir.
<br />ned tlm "f the (('IJlm!', !<'wcr hy.url1,>\\'';
<br />fk(.ll.bt' e\"apt'T.I(t\'I1 [,llt'S .If,' pn.
<br />manly umtrl,llt'J by h,lW mu,-h "'I!..lhn,l.?
<br />b ncecleJ. ..'\",lp<:lr,l\l\\' 10s.....s "ffef lim.
<br />Ited l'p!X,rtUI1l1h.:" I'lf c,lnSCrnJ1g W.1I..'T
<br />In:<-tcad, LKIlttl"S th.lI want t,l Impfll\i.: lh,'
<br />dIlL'lt'n..::) llj 1.::\'\llmg t"\,,.cr~ ,-;H\ u<.c ';'l1llW
<br />l,j the fl'l1nwm~ Slr:lIegle.;
<br />
<br />\tm\lm:'T blced,,'ff, r,,~tp<ln.. In"
<br />frt'quell":\" "f blc"J-l,fj by Impr,)nn~
<br />tht" quality "~f ((lohng l<lWeT W.HCf-
<br />cllhef thn'u!.?,h l:hellll....ll ,ldlustm"nb
<br />Ilr f1llr3!wn
<br />R"l"yLlc .lOd reuse Rl'l:yde blco:d-I.JI
<br />w.ller f,'r 1.11lJ~dP<-' Impll,'n, f,'r
<br />
<br />Efficient Water Use III Commerce and Industry
<br />
<br />t.'_\..l1nplc llf fet\"(' ,I c,'ruln qUJntlly
<br />"f \\'.Hl'r JI;;..h.lf~i.:d In.>m th,' '~,;t,'m
<br />In;,t,,ll ..:ll1;,,:J-I\,,-'p ,.,l(l!mg ,~.;.(('m.;.
<br />Clll-....J-I,I('p ~\.stl'm~ r,'i.:1T...uLIU th..'
<br />"..,1111~ W,lt<'f 1n;.1t'.ld "f dbp'JSm~ llt
<br />rt :\ftl'f r,'llf~uL.ltl,'". the \\Jkr may
<br />be .Ippfl'pn;tt,. fl'r 1Tn,~,ltl,'" ,1T ,'tl,ll.
<br />m~ t\lwn rn.lk('-up w,ltl'r, or \,'hlck
<br />wa~hll1g
<br />R"'pb,.' wJll'r-,','okd with J1T....(.olcd
<br />eqUlpnwnt
<br />
<br />Ht'lkr~ .lfld ...(t'Jm g,'nl'r.u,lt":' ,IT,' l,!ten
<br />ll",-,d t,1 h..',ll bl):l' hUlldlllc,,, ,l[ wmrIcXl'<'
<br />Old..-r h'llkr system:, "';lll L;lllS,: \\ ,Ilt'[
<br />1(>~"l'~ fl'~Ultlll~ fr"lll (\lrn>Jed ..1,',1111
<br />tT,IP" and ..tho J,'lenllf,lll'J L,'nl!'lllni.:nl;,
<br />Tt'(hl1l11'>C,1l'~ th,Jt (,Ul irnl1r\'\"C W,lll'f USt.
<br />dhi.:wll( Y Hl lW"(1ll.~ Sbl"Ill';' II1duJe ;,ream
<br />tr,lr Tcpb.('IllCnl kas (wlm:h pre\"l~m-w;acr
<br />1(",,,,<,.;. from ,,".:apmg slc,lm\ i.:llJ1ckns.\l('
<br />Teturn .;.y~lcm" (whH.:h ft'JlI"''' lh(' ,Im,'um
<br />"I make-up w.ltn nceJcci by rt.lumm,e.
<br />sleam i.:lmdl'ns.lll' [,1 lhe n"llcr 5ptl'm I,'f
<br />
<br />Teu.....). .mJ ,IUt\'n1.ltlL bll,\\'d,'\~n c,mtwl.;.
<br />lwhll"h 11m,' bk,.J....,lf JL'..:h.lr~e<, 1<' rdc;lSo.'
<br />only lhl' .mlllllnt "f ""',11,'r neCt'""ITY \<l
<br />m.llntatn dC,;Ul:J \\"<itcr 411.1Iay1.
<br />
<br />r1"M I
<br />
<br />
<br />Closed-Loop Cooling System
<br />
<br />Saves Water at Historic Office Building
<br />
<br />The nine.stoTY ColoraJo Business Bank
<br />Building III do\\ntovm Den\"eT was bUill in
<br />190R The first multisloT)' reinforced cnncrett"
<br />,buildmg cons.!ructed west of the ~hssisSlppi
<br />Ri\'er, 11 \5 listed in tht" Register of National
<br />Historic Places Today, \l5 office space accom-
<br />modates some 300 workers, and its tenants
<br />include a bank. adwnising and law firms, and
<br />a restaurant.
<br />\vhen a new owner look posSt'S-....ion of
<br />the building in 1997. its water Q'i,{' was R
<br />millton gallons a year, despite the fact that It
<br />",,-as on])' 40 percent occupled_ Between 1999
<br />and 2002, the ne..... o\\.ncr remowd two aging
<br />cooling towers. connected a line of (hilled
<br />city water 10 the bUlldmg's coohng system,
<br />and installed a closed-loop cooltng system
<br />ror the refri~cr.l\ion cqUlpment in the re5-
<br />tauranl_ These projects redm.:ed the- buildings
<br />water use bY' 4 milhon gallons. or 50 pt'rcent.
<br />lowering ooth \\-,lIeT and energy costs for
<br />tenants_ Now the building':;, office space is
<br />fully occupied_ With total annual 5a\'mg> of
<br />577,000 and toul project COSts or 5246.0l)(),
<br />payback for the projects wa!) achIeved 10 just
<br />o\'er three years.
<br />
<br />
<br />Recen[ II'lStGilauon orO WOI'er wise cool-
<br />II'Jg sysrem 11'1 the rostOfl(: Cdorodo Bonk
<br />&vIdng CU{ the WIlting's water use If! naif
<br />bwenng both 'M1ter and er>ef8Y costs.
<br />
<br />CITIZEN'S GUIDE TO COLO.."OO W,.TE<> CONSE"V"TION 13
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