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Weston & Sampson <br /> .....�t�rr� _ .��. •'- .,.err.. ��� .. <br /> Mr , George Custap Chaitinan <br /> September 27, 1989 <br /> Page Three <br /> ♦ <br /> period of water <br /> against a joint o ixtilre ;onLa�rti lead, the <br /> icontamination. 1"h exL ren ely high <br /> enc: trat ons of lead o s Iry c f, S ipte <br /> ofte t of chl-orin added Possibly �.�e to d to the sy tein fur <br /> di'Lsinfection ochlorine The would tend Lo attack . <br /> he <br /> new fixtures and use trot to r. lae 1 It �s ��ni� .� � <br /> that these Il gh orI en at ions will �e observed <br /> i_st ric� <br /> w !lave. shown that s the syr twin les the <br /> al]y, stud <br /> amount of lead released into the water is reduced . <br /> Y <br /> time►e t lir r omm n at�ions are h the Town 1 . <br /> At this <br /> Pursue '.program o reduce tilPottlrltial fur corrosion in e <br /> sy c . implement an intetim flushing <br /> and continue <br /> use Of ottled water until concentrations Of <br /> lead are below 50 ppb. <br /> gedUr. f •.J .. gjlt . www .. ..r.� • T. 7 <br /> I <br /> . ,)lis llo ( rl l reduce the e tle lit,:r a t n o I. act iii the <br /> ].+ ' r t: future l-'a bi rig <br /> wat r`� it i1j, also rots.' tile. s terns against. <br /> r. _ This corrosive nv' ro��r�e11t ]. .l 1 .: t <br /> lrik)d 0Y <br /> f a n ' or botb of the folow i n c . <br /> 1 . The grounding- of electrica equ1 pmen t t'o the water <br /> The <br /> f e o& rinki �g Water has sLatc'- , <br /> lig . h <br /> electrical equipment c.l as tele.phones , <br /> in water pi es a aground, the 01e t"ic <br /> installed s .i ; wipe i11 <br /> current traeli.r� trouc��� t our�c� <br /> accelerate t:tie cur <br /> containing lead . 'nis piact-icehQurl be. fi r . " <br /> 2 . ,ri a rc ert� o the at;_ r being sli t ieLl to <br /> The <br /> the School woes Water. } , o� l � indi. a t)" (Llf. <br /> , a <br /> corrosive water, would be love p , 10w a l i lrk <br /> low carbonate or at al l rjit. , 1)(1 li it ca rbon (I J.oxi <br /> de <br /> nLent . <br /> Our office has cont acted tliv. '1,,)w Is e1e.ci.ricaI i nspec:tt)r <br /> regard * rg the grourid) nf.4 Of e.l e t rico l equitmicilt. to the waLci <br /> • d find pis tilat e, iziLe s to fe i thin; <br /> 1 I <br /> r1 . e has inn � .. <br /> potential on-site a wit!., til .car r c and correct it if <br /> and necessary . <br /> l ie <br /> H wot d watch. ' rap ny t;Jj � id alio- be. int, Ct~-c!fl t. <br /> Obtaina c:l': r l ;i ]. -Ian l ys �s of th Water P.111)1).I. <br /> Index) . 1.f <br /> to determine in he water` ' s c Ol'A t-..ii i.tl (1, n la �. <br /> c i tl i a a i ,11.)a]y i c 1-�' 11 w c, a t, r <br /> necessary , act � <br />