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Ireb IQ ue 12 QEP1PM DRLiI HML) HWMP 5' 540-36 15 73 P.4 P- 2 <br /> California Department of Toxic Substances Control HML#; 010450 <br /> Hazardous Materials Laboratory to: 010454 <br /> 2151 Berkeley Way, Berkeley,CA 94704 <br /> Phone: (510)5403003 or(ATSS)571-3003 <br /> Collector's Name: Richard Stewart Auth. No., HMR4592 <br /> Site or Location. Helena Chemical Activity: OTHERS <br /> Stockton Date Collected: 10/25/01 <br /> Date Received: 11/5101 <br /> Procedure: Sample are mixed thoroughly and allowed to equilibrate for at least 30 minutes, <br /> pH is determined using pH meter calibrated with known pH buffer. <br /> Reference: EPA Method 90408 <br /> HML Collector's Sample pH <br /> Number: Number: Type <br /> 010450 HELENA01 LIQUID 6.36 <br /> 010451 HELENA02 LIQUID 6.80 <br /> Signatures. <br /> da R.Ilejay , ate 41lad S. Iskander Date <br /> Chemist Supervisor <br />