8/14/2019 Bacterium Buildup in Piped Water Supply

1/9

Fmgxnva~b F~akh"~y % Yvnunlxadl al Yaynh Smxnv"Gjalxml Hmaqm

Emgx Bdvn xjml :9. de `akknv hawnmwnw mvn smxnv fdvln-

De xjn :9. smxnv"fdvln hawnmwnw mw gml fn ldxnh evdb xjn gjmvx mfdun bmodvaxq de xjnwn

mvn gm~wnh fq fmgxnvam, Nkagaxnh fnkds mvn wdbn de xjn bdwx gdbbdl fmgxnvam,

Fmgxnva~b 69.

Uavaa 5.

Ymvmwaxag

Yvdxddm =:.

Gjnbagmk =5.

^lhnxnvbalnh

89.

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Knxw edg~w dl wdbn de xjn smxnv"fdvln fmgxnvam,

Uafvad Gjdknvmn? M ymvx de xjn uafvad embakq U,

Gjdknvmn *mw xjn lmbn abykanw! aw ml mcnlx de

gjdknvm m hnumwxmxalc mlh wdbnxabnw knxjmk hawnmwn

saxj yvde~wn smxnvq hamvvjnm, Ka`n dxjnv uafvad U,

Gjdknvmn bdunw mgxaunkq, Uafvad al Kmxal bnmlw

Xd }~aunv,

Gmbyqkdfmgxnv? M ymvx de xjn gdv`wgvns embakq, M

fmgxnva~b xjmx xqyagmkkq alengxw xjn fdsnkw, Xjn

knmhalc gm~wn de fmgxnvamk eddh ydawdlalc

Gmbyqkdfmgxnv aw bdwx dexnl wyvnmh fq gdlxmgx saxj

vms dv ~lhnvgdd`nh yd~kxvq, M walckn hvdy de o~agnevdb m gdlxmbalmxnh gjag`nl aw nld~cj xd bm`n

wdbndln wag`, Hawnmwn gm~wnh fq Gmbyqkdfmgxnv ono~la

aw xnvbnh Gmbyqkdfmgxnvadwaw,

Kncadlnkkm? Kncadlnkkm yln~bdyjakm aw m cvmb"

lncmxaun mnvdfag fmgxnva~b, Gdlwahnvnh xd fn m

&emg~kxmxaun ymvmwaxn& sjagj al xjn kmwx xsnlxq qnmvw

jmw fnnl ahnlxaeanh mw xjn knmhalc gm~wn de

Kncadllmavn#w Hawnmwn, Xjaw hawnmwn smw eavwx

hawgdunvnh al =135 mbdlc m cvd~y de bnlmxxnlhalc ml Mbnvagml Kncadl Gdlunlxadl al

Yjakmhnkyjam Ynllwqkumlam *jnlgn Kncadllmavn#w

Hawnmwn!, Sjnl xjaw d~xfvnm` eavwx dgg~vvnh ax

wjdg`nh xjn sdvkh ld dln `lns sjq mkk snvn fnalc

hamcldwnh saxj mg~xn vnwyavmxdvq emak~vn,

Wjacnkkm? M cvd~y de fmgxnvam xjmx ldvbmkkq aljmfax xjn

alxnwxalmk xvmgx mlh gm~wn alemlxakn cmwxvdnlxnvaxaw

w~bbnv hamvvjdnm de gjakhjddh mlh umvad~w edvbw de

hqwnlxnvq algk~halc nyahnbag mlh dyydvx~lawxag fmgakkmvqhqwnlxnvq, Lmbnh edv xjn Omymlnwn fmgxnvadkdcawx

@aqdwja Wjacm *=:39"=1>3!,

Wmkbdlnkkm? M

cvd~y de fmgxnvam

xjmx gm~wn xqyjdah

enunv mlh m l~bfnv de dxjnv akklnwwnw algk~halc

eddh ydawdlalc cmwxvdnlxnvaxaw mlh nlxnvag enunv

evdb gdlxmbalmxnh eddh yvdh~gxw, Lmbnh edv xjn

Mbnvagml ymxjdkdcawx Hmlank Wmkbdl *=:>9"=1=8!,

8/14/2019 Bacterium Buildup in Piped Water Supply

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Nwgjnvagjam gdka *N,Gdka!? M fmgxnva~b xjmx

gdbbdlkq kaunw al xjn alxnwxalnw de yndykn mlh

mlabmkw, Xjnvn mvn bmlq wxvmalw de N, gdka, Bdwx de

xjn N, gdka mvn ldvbmk aljmfaxmlxw de xjn wbmkk

alxnwxaln mlh gdkdl mlh mvn ldl"ymxjdcnlag

bnmlalc xjnq hd ldx gm~wn hawnmwn al xjn

alxnwxalnw, Lnunvxjnknww xjnwn ldl"ymxjdcnlag

N,gdka gml gm~wn hawnmwn ae xjnq wyvnmh d~xwahn de

xjn alxnwxalnw edv nzmbykn alxd xjn ~valmvq xvmgx

*sjnvn xjnq gm~wn fkmhhnv dv `ahlnq alengxadlw! dv

alxd xjn fkddh wxvnmb *wnywaw!,

Wd+ jds wmen aw xjn smxnv xjmx sn hval`4

Hdlx jax xjn ymlag f~xxdl qnx+ B~lagaymk

Gdvydvmxadlw $ Gauag Fdhanw mvd~lh xjn sdvkh wynlh

bakkadlw xd yvduahn xjn jmvh"sdv`alc xmz"ymqalc

gaxanlw saxj m gknmv ckmww de vnevnwjalc smxnv,

Al emgx jacj"ykmgnh deeagamkw mx Fjmlh~y Xvnmxbnlx

Gdbyknz sjagj aw xjn xvnmxbnlx ykmlx edv B~bfma

gaxq gkmab xjmx xjn smxnv knmualc xjnav gdbyknz aw

unvq b~gj gdbymvmfkn xd mlq vny~xnh fvmlh de

fdxxknh smxnv,

F~x hdlx o~by xd gdlgk~wadlw qnx mw sn e~vxjnv sn

sakk wnn jds xjnwn kaxxkn bagvdwgdyag uakkmalw bm`n

smq xd xjmx kaxxkn ckmww de smxnv,

Yvdfmfkq xjn faccnwx cvdsxj emgxdv edv fmgxnvam aw Gdlxmbalmxadl,

W~yykq Yaynkalnw edv Wd~xj B~bfma ymwwalc Hjmvmua

Fjmlh~y Xvnmxbnlx Gdbyknz

8/14/2019 Bacterium Buildup in Piped Water Supply

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Smxnv Gdllngxadl fnalc yvduahnh xd m vny~xnh bmkk evdb m smxnv bmal alwahn m C~xxnv

Mldxjnv emgxdv sjagj emgakaxmxnw fmgxnvamk cvdsxj mlh vmhamxadl aw fmg`ekds mlh gvdww"

gdllngxadl

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Fadkdcagmk mgxauaxq al m hawxvaf~xadl wqwxnb aw ldvbmkkq bdwx alxnlwn mx xjn alxnvemgn fnxsnnl

xjn smxnv mlh wxv~gx~vmk bmxnvamkw *al edvbmxadlw cnlnvmkkq hnwgvafnh mw fadeakbw! mlh

saxjal hnydwaxw edvbnh fq ymvxag~kmxn bmxxnv mlh gdvvdwadl,

Xjn cvdsxj de fadeakbw hnynlhw dl xjn lmx~vn de xjn bmxnvamk xjn jqhvm~kag gdlhaxadlw mlh

xjn yjqwagmk mlh gjnbagmk gjmvmgxnvawxagw de xjn smxnv, Gdkdlawmxadl dgg~vw evdb xjn eavwx

gdlxmgx fnxsnnl gnvxmal bagvddvcmlawbw *bmalkq fmgxnvam! mlh m lns bmxnvamk, Ax xjnl

nudkunw xjvd~cj xjn alxncvmxadl de umvad~w knunkw mlh wynganw xjmx gml gdjmfax mlh nzgjmlcn

l~xvanlxw fq vnmgxalc xd nzxnvlmk gdlhaxadlw,

Xnbynvmx~vn Ae l~xvanlxw mvn mumakmfkn xjn bagvdfamk mgxauaxq algvnmwnw waclaeagmlxkq mx

smxnv xnbynvmx~vnw mfdun =>G al xjn mfwnlgn de m hawalengxmlx vnwah~mk,

yJ Bdwx bagvddvcmlawbw w~vuaun mx xjn yJ umk~nw ldvbmkkq ed~lh al hval`alc"smxnv,

Dzqcnl Smxnv w~yykanw mvn ldvbmkkq snkk mnvmxnh sjagj vnh~gnw xjn vaw` de bagvdfamkkq"

alh~gnh gdvvdwadl hnlaxvaeagmxadl w~keahn yvdh~gxadl mlh dxjnv gdlwn}~nlgnw de mlmnvdfag

wxmclmxadl, Jdsnunv dzqcnl bmq ldx ynlnxvmxn xd xjn fdxxdb kmqnvw de fadeakbw gdvvdwadl

x~fnvgknw mlh dxjnv yayn hnydwaxw mlh vnwnvudav wnhabnlxw sjnvn mlmnvdfnw w~gj mw

w~kemxnvnh~galc fmgxnvam bmq yvdkaenvmxn,

L~xvanlxw Mkxjd~cj wdbn bagvddvcmlawbw gml w~vuaun dl balnvmk nknbnlxw xjnq mvn de

kaxxkn waclaeagmlgn al hawxvaf~xadl lnxsdv`w, Jdsnunv bmlq

bagvddvcmlawbw gml yvdkaenvmxn ae xjnvn aw w~eeaganlx

hawwdkunh dv ymvxag~kmxn dvcmlag bmxxnv gdlxmalalc gmvfdl

laxvdcnl dv yjdwyjdv~w,

Wd sjmx aw xjn wdk~xadl mumakmfkn xd ~w4

Hval` fdxxknh smxnv4

Ldx vnmkkq knxw wnn sjmx yvnunlxaun bnmw~vnw gml sn xm`n,

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Yvnunlxaun Bnmw~vnw algk~hn f~x mvn ldx kabaxnh xd?

Jqhvm~kagw Nzgnwwaun gmymgaxq Kds"ekds hnmh"nlhw $ kddyw Lncmxaun yvnww~vnw Almyyvdyvamxn yvnww~vnw Alxnvbaxxnlx W~yykq

Wjmyn % Gdleac~vmxadl de wxdvmcn Wjmyn % Habnlwadl Hnyxj de smxnv Alknx $ D~xknx Fmeeknw

Yayalc Bmxnvamk Gdyynv GYUG

Gvdww"Gdllngxadl $ Fmg`ekds Gdlxvdk Mav cmy Fvnm` Xml` Bngjmlagmk Gdlxvdk Umkunw

Y~vaeagmxadl Yvdgnwwnw Gjkdvaln Ddln ^U

Jqhvm~kagw?

Nzgnwwaun Gmymgaxq? Xjn wqwxnb wjd~kh ldx jmun nzgnwwaun gmymgaxq *sjagj sakk vnw~kx al kdlc

xvmlwax xabnw! ~lknww xjaw nzgnww gmymgaxq aw vn}~avnh xd bnnx m `ldsl algvnmwn al e~x~vnhnbmlh,

Kds"ekds+ Hnmh"nlh mlh Kddyw? Ahnmkkq kds"ekds hnmh"nlhw mlh kddyw wjd~kh fn mudahnh

f~x al yvmgxagn xjaw aw ldx mksmqw ydwwafkn, Kds"ekds wngxadlw de hnmh"nlhw wjd~kh fn mw wjdvx

mw ydwwafkn, Fdxj hnmh"nlhw mlh kddyw al xjn wqwxnb bmq gm~wn yvdfknbw fq gvnmxalc kdlc

vnwahnlgn xabnw mlh wngxadlw sjnvn wnhabnlxw gml gdkkngx, Gjmlcnw al ekds havngxadl *xahmk

ekdsw! al kddyw bmq hawx~vf mlq hnydwaxw al xjn yaynw,

Lncmxaun Yvnww~vnw? Wax~mxadlw xjmx bmq caun vawn xd lncmxaun yvnww~vnw wjd~kh mksmqw fn

mudahnh, Emngmk dvcmlawbw mlh g~kx~vmfkn fmgxnva~b bmq fn yvnwnlx al cvd~lhsmxnvmhomgnlx xd m yaynkaln mlh hvmsl alxd m yayn h~valc xvmlwanlx kds dv lncmxaun yvnww~vnw,

W~gj wax~mxadl bmq dgg~v sjnvn xjnvn mvn?

yvdynvxanw dl jacj cvd~lh0

vnbdxn yvdynvxanw mx xjn nlh de kdlc knlcxjw de yayn0

hnbmlhw xjmx mvn cvnmxnv xjml xjn hnwacl hnbmlh0

yaynw de almhn}~mxn gmymgaxq *xdd wbmkk hambnxnv!0

vd~cj yaynw *n,c, gdvvdhalc avdl yaynw dv yaynw saxj m f~akh"~y de wnhabnlx!0

n}~aybnlx emak~vnw *n,c, y~byw mlh umkunw!

Almyyvdyvamxn Yvnww~vnw? Yvnww~vn mx mlq ydalx al xjn wqwxnb wjd~kh fn bmalxmalnh saxjal mvmlcn sjnvnfq xjn bmzab~b yvnww~vn mudahw yayn f~vwxw mlh xjn balab~b nlw~vnw xjmx

smxnv aw w~yykanh mx mhn}~mxn ekds vmxnw edv mkk nzyngxnh hnbmlhw, Xjaw bmq vn}~avn

yvnww~vn fddwxalc mx wxvmxncag kdgmxadlw al xjn lnxsdv`,

Alxnvbaxxnlx W~yykq? Al wdbn wax~mxadlw smxnv w~yykanw mvn dlkq mumakmfkn edv m vnwxvagxnh

l~bfnv de jd~vw ynv hmq dv hmqw ynv snn`, Mkxjd~cj w~gj wqwxnbw mvn ldx hnwavmfkn xjnq

mvn xjn vnmkaxq edv m kmvcn yvdydvxadl de xjn sdvkh#w ydy~kmxadl, Xjn gdlxvdk de smxnv }~mkaxq

al alxnvbaxxnlx w~yykanw vnyvnwnlxw m waclaeagmlx gjmkknlcn xd smxnv w~yykanvw fngm~wn xjn

vaw` de fmg`ekds algvnmwnw waclaeagmlxkq h~n xd vnh~gnh yvnww~vn, Xjn vaw` bmq fn nknumxnh al

wnmwdlw saxj cvnmxnv vmalemkk sjnvn wdak bdawx~vn gdlhaxadlw sakk algvnmwn xjn ka`nkajddh de myvnww~vn cvmhanlx hnunkdyalc evdb xjn wdak xd xjn yayn, Saxjal xjn w~yykq xjn bdwx

waclaeagmlx ydalxw de vaw` sakk fn mvnmw sjnvn yaynw ymww xjvd~cj hvmalw dv dxjnv ykmgnw sjnvn

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wxmclmlx smxnv yddkw bmq edvb, Smxnv }~mkaxq bmq mkwd hnxnvadvmxn dl vngjmvcalc sjnvn

w~vcnw bmq hawkdhcn fadeakb knmhalc xd mnwxjnxag yvdfknbw,

Wjmyn mlh Gdleac~vmxadl de Wxdvmcn?

Wjmyn % Habnlwadl? Mw xjn vmxad de knlcxj xd fvnmhxj de m vnwnvudav aw algvnmwnh ax fngdbnw

bdvn haeeag~kx xd mgjanun xjn *hnwavmfkn! e~kkq baznh gdlhaxadl, Al xjn nzxvnbn gmwn de m kdlc

lmvvds vnwnvudav ax sd~kh fn lngnwwmvq xd ykmgn xjn alknx mlh d~xknx mx dyydwaxn nlhw0 xjn

ekds sd~kh xjnl myyvdzabmxn xd yk~c ekds, Xjnvnedvn xjn vnwnvudav wjd~kh fn gavg~kmv dv

vngxmlc~kmv saxj m kds vmxad de knlcxj xd fvnmhxj, Edv lns vnwnvudavw saxjd~x fmeeknw m

knlcxj xd fvnmhxj vmxad de knww xjml 6?= aw gdlwahnvnh dyxabmk edv smxnv }~mkaxq,

Hnyxj de Smxnv? Cnlnvmkkq al vnwnvudavw saxjd~x fmeeknw smxnv }~mkaxq aw fnxxnv sjnvn xjn

munvmcn hnyxj aw cvnmxnv xjml 7 b fngm~wn xjaw emgakaxmxnw bazalc, Jdsnunv al wax~mxadlw

sjnvn m hnny vnwnvudav gvnmxnw kdlc vnwahnlgn xabnw m hnyxj de knww xjml 7b bmq fn m

gdbyvdbawn hnwacl, M vnwnvudav saxj ml nzgnyxadlmkkq kmvcn dv wbmkk udk~bn sd~kh jmun m

haeenvnlx gvaxagmk knunk sjagj sd~kh lnnh xd fn hnxnvbalnh edv nmgj gmwn ~walc m xngjla}~n

w~gj mw gdby~xmxadlmk ek~ah hqlmbagw,

Alknx $ D~xknx? Alknxw mlh d~xknxw saxj yvdynv unkdgaxq mlh hawgjmvcn mvn vn}~avnh xd nlw~vn

yvdynv bazalc de smxnv mlh mudahalc wxmclmxadl, D~xknx ydalxw ka`n dunvekdsw lnnh xd fn

yvdxngxnh evdb nzxnvlmk wd~vgnw ka`n vdhnlxw mlh alwngxw,

Fmeeknw $ Gdbymvxbnlxw? Ax aw ahnmk xd algk~hn fmeekn smkkw dv bm`n gdbymvxbnlxw al

vnwnvudavw de kmvcnv gmymgaxanw xd mudah wxmclmxadl de smxnv,

Yayalc Bmxnvamk?

Gdyynv? M lns wx~hq ~lhnvxm`nl fq @ASM xjn H~xgj smxnv }~mkaxq vnwnmvgj Alwxax~xn jmw

wjdsl xjmx ~walc gdyynv yaynw vnh~gnw xjn cvdsxj mlh yvdkaenvmxadl de xjn fmgxnvam

vnwydlwafkn edv Kncadllmavn#w hawnmwn, Fq wab~kmxalc hdbnwxag ~wmcn de haeenvnlx jdx smxnv

hawxvaf~xadl wqwxnbw edv o~wx ~lhnv dln qnmv xjn wx~hq mlmkqwnh xjn yvdkaenvmxadl de xjn

fmgxnvam Kncadlnkkm yln~bdyjakm, Xjn nzynvabnlxw wjdsnh xjmx xjn Kncadlnkkm

gdlgnlxvmxadl al xjn smxnv gdlunqnh

fq gdyynv yaynw smw =9 xabnw knww

xjml al zzzzzzz *xqyn saxjjnkh! yaynw,

Gdyynv#w fmgxnvadwxmxag mlh

bngjmlagmk yvdynvxanw nzykmal sjq axaw ~wnh al bmlq g~vvnlx myykagmxadlw

evdb yayalc gdalw hddv jmlhknw ldx

xd bnlxadl gdd`alc ~xnlwakw mlh

bnhagmk n}~aybnlx, Dxjnv vngnlx

wx~hanw gmvvanh d~x fq haeenvnlx

bagvdfadkdcq vnwnmvgj gnlxvnw jmun

mkwd wjnh kacjx dl gdyynv#w ydwaxaun

vdkn al gdbfmxalc Kawxnvam N,gdka 9=>=

mlh wxmyjqkdgdgga xjvnn dxjnv jacjkq

ymxjdcnlag fmgxnvam,Xjn vnw~kxw de xjn @ASM wx~hq snvn y~fkawjnh al xjn Lnxjnvkmlhw al xjn Bmq mlh O~ln 6997

aww~nw de xjn od~vlmk klxngj mlh Al xjn 79 Bmq aww~n de xjn od~vlmk J69,

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GYUG? Wdbn wx~hanw gdlh~gxnh dl GYUG yaynw jmun

yvdunl axw ~levanlhkalnww xd bagvdfamk cvdsxj,

Fadeakb Edvbmxadl Ydxnlxamk de Yayn Bmxnvamkw al

Alxnvlmk Alwxmkkmxadlw+ O~ln =111+ @ASM

Smxnv Hnxnvadvmxadl evdb nzxnlhnh wxmclmxadl

gdlhaxadlw al wxnnk+ gdyynv mlh GYUG yaynw+

Enfv~mvq =115 Yvde, E,K,Jmvx edv xjn ^W Eavn

Mhbalawxvmxadl,

Fmgxnvamk Cvdsxj al hval`alc smxnv wqwxnbw+

Dgxdfnv =1:1 ^launvwaxq de Fdll Cnvbmlq,

Gvdww"Gdllngxadl $ Fmg`ekds Gdlxvdk?

Xqyagmk hncvnnw de gvdww"gdllngxadl vmxalcw mvn mw edkkdsw?

Jacj jmzmvh Mlq gdlhaxadl hnuagn dv yvmgxagn xjmx al gdllngxadl saxj xjn ydxmfkn

smxnv w~yykq wqwxnb jmw xjn ydxnlxamk xd gm~wn hnmxj,

Bnha~b jmzmvhMlq gdlhaxadl hnuagn dv yvmgxagn xjmx al gdllngxadl saxj xjn ydxmfknsmxnv w~yykq wqwxnb gd~kh nlhmlcnv jnmkxj,

Kds jmzmvhMlq gdlhaxadl hnuagn dv yvmgxagn xjmx al gdllngxadl saxj xjn ydxmfkn smxnv

w~yykq wqwxnb sd~kh gdlwxax~xn m l~awmlgn f~x sd~kh ldx

nlhmlcnv jnmkxj dv gm~wn alo~vq,

Mav Cmy? Ml mav cmy aw xjn bdwx fmwag yvdxngxadl bnmw~vn sjnvn

ydxmfkn smxnv gml ekds saxjd~x mlq ydwwafakaxq de m fmg`ekds

wayjdl dv yvnww~vanh vnx~vl de ~wnh smxnv dv gdlxmbalmxnh

w~fwxmlgn, Ml mav cmy aw w~axmfkn edv ~wn al jacj bnha~b dv kds"

jmmvh gdlhaxadlw, M wabykn nzmbykn aw xjn wal` alknx umkun dv xmysaxj axw hawgjmvcn ydalx snkk mfdun xjn dunvekds knunk de smxnv al

xjn wal`,

Fvnm` Xml`? Xjn mav cmy yvalgaykn aw nzxnlhnh xd gvnmxn m lns w~yykq jnmh *yvnww~vn! mlh ae

xjn xml` aw mkkdsnh xd dunvekds ml mav cmy aw bmalxmalnh xd xjn smxnv alknx, Xjn fvnm` xml`

yvduahnw m wnymvmxnh w~yykq wqwxnb xjmx neengxaunkq

awdkmxnw xjn ydxmfkn smxnv w~yykq wqwxnb evdb m lns

cvmuaxq jnmh dv m wd~vgn edv m y~bynh w~yykq, M fvnm`

xml` aw w~axmfkn edv ~wn al jacj bnha~b dv kds"jmmvh

gdlhaxadlw, M wabykn nzmbykn aw xjn ekdmx"umkungdlxvdkknh xdaknx ek~wjalc gawxnvl,

Bngjmlagmk Gdlxvdk Umkunw? Xjn edkkdsalc mvn xqynw de

bngjmlagmk fmg`ekds yvnunlxadl hnuagnw xjmx mvn

xqyagmkkq alwxmkknh hdslwxvnmb de xjn bnxnv dv

wxdy umkun mx xjn yvdynvxq fd~lhmvq, *Xjnvn mvn

dxjnv xqynw hnwaclnh edv wyngamk dynvmxadlmk

gdlhaxadlw,!

H~mk Gjng` Umkun

Hd~fkn Gjng` Umkun Hd~fkn Gjng` Hnxngxdv Mwwnbfkq Vnh~gnh Yvnww~vn _dln Mwwnbfkq

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