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molecules MTBE "ill be found in the water sti eam between the first a n d
<br /> second canister Each carbon cani,,tei has been fitted with a ,ample poi t
<br /> which allows a Sample to be collected and analyzed at prescribed intervals
<br /> to deteimrne at what point MTBE has broken through the first cani,tei
<br /> ASE will replace the canisters when they no longer are effective at
<br /> removing the MTBE fiom the water The ,N,,tein has been designed to
<br /> always have an adequate supply of activated carbon in one vessel to tt eat
<br /> a normal volume of water while the other canister i, spent and in the
<br /> process of being replaced Cuilently the schedule for sample collection
<br /> and analy,,i,, is quarterly (every 3 n-ionth�,)
<br /> _YYti1ER SAMPLE. COLLECTION �\D ANALYSIS
<br /> On October 30 2001 , a water sample labeled 17899 Atipoit Way wa,
<br /> collected fiom the well duiing routine quaiteily ,ample collection
<br /> activitie,, The sample was placed within an ice c.he,t containing wet ice
<br /> while ti an,poi ted to Kiff Analytical of Davi, Califoi nia (ELAP# 2 2 3 6)
<br /> under chain of custody procedures The Sample wa,, analyzed for total
<br /> petroleum h%diocaibon, a, ga,oline (TPH-G) benzene toluene,
<br /> ethylbeniene and xylene, (collecuvel} known a, BTEX) the five fuel
<br /> oxygenate,, and lead ,cavengeis by EPA Method 8260B The Sample
<br /> contained 1 9 parts per billion (ppb ) MTBE
<br /> After the sy,tem was in,talled ,taited and operating in 1111d-January
<br /> 2002, ASE collected a water sample atter treatment by the fir,,t GAC
<br /> canister This ,ample was labeled 17899-GAC l - 1 -21 -02 The sample was
<br /> placed within an ice chest containing wet ice while ti an,,poi ted to Kilt
<br /> under chain of custody procedures The ,ample wa, analyzed lot TPH-G,
<br /> BTEX five fuel oxygenate,, and lead scavengei , by EPA Method 8260B
<br /> The sample contained no detectable concentrations of any o f
<br /> the compounds analyzed A copy of the cert€lied analytical i epos t,
<br /> die attached in Appendix B
<br /> WATERSAAIPLE .ANA> Y-'rLCALAtE SJL�TS
<br /> The only compound identified in ,ample 17899 Aii poi t Way (the p i e-
<br /> ticated watei sample) wa, MTBE at 1 9 ppb
<br /> • No compounds were identilied in sample 17899-GAC1 - 1 -21 -02 which
<br /> wa, collected atter GAC cavi,,ter number I This prove, that the
<br /> ti eatment ,y,tenl i, woi kin4T a, deigned and that no MTBE of a n y
<br /> other compound, analyzed ate enteirn4 the howc', plumbing ,y,,tem
<br /> - 2 -
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