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<br />CORE LABORATORIES
<br />L A B O R A T O R Y T E S 7 R E S U L T S
<br />Job Number: 983261 Date: 12/29/98
<br />CUSTOMER: Greystone PROJECT: CASTILLO CO 484 ATTN: Nick Mathis
<br />Customer Sample ID: MNS Laboratory Sample ID: 983261-1
<br />Date Sampled......: 12/10/1998 Date Received.......: 12/10/1998
<br />Time Sampled......: 06:00 Time Received.......: 09:15
<br />Sample Ma [rix.....: tla ter
<br />TEST METHOD PARAMETER/TEST DESCRIPTION SAMPLE RESULT REPORTING LIMIT UNITS DATE TECH
<br />EPA 150.1 pH, Filt. 7.05 0.01 pH Units 12/10/98 mjf
<br />EPA 160.1 Solids, Total Dissolved (TDS ), Filt. 200 10 mg/L 12/11/98 tlp
<br />EPA 325.2 Chloride, Fi lt. 2.7 0.5 mg/L 12/14/98 tlp
<br />EPA 340.2 Fluoride (F ), Filt. 0.1 0.1 mg/L 12/20/98 tlp
<br />EPA 353.2 Nitrate + Nitrite as N, Filt. 0.57 0.05 mg/L 12/11/98 tlp
<br />600/8-78-017 M Coliform, Total, Unfilt. <1 1 #/100mL 12/10/98 sjv
<br />EPA 200.7 Arsenic (As ), Diss. <0.01 0.01 mg/L 12/16/98 lmt
<br />EPA 200.7 Barium (Ba), Diss. 0.074 0.001 mg/L 12/16/98 Lmt
<br />EPA 200.7 Beryllium (Be), Diss. <0.001 0.001 mg/L 12/16/98 lm[
<br />EPA 200.7 Cadmium (Cd ), Diss. <0.0005 0.0005 mg/L 12/16/98 lmt
<br />EPA 200.7 Chromium (Cr), Diss. <0.005 0.005 mg/L 12/16/98 lmt
<br />EPA 200.7 Iron (Fe), Diss. c0.03 0.03 mg/L 12/16/98 lmt
<br />EPA 200.7 Manganese (Mn), Diss. <0.001 0.001 mg/L 12/16/98 lmt
<br />EPA 200.7 Nickel (Ni ), Diss. c0.005 0.005 mg/L 12/16/98 lmt
<br />EPA 200.7 Silver (Ag), Diss. c0.005 0.005 mg/L 12/16/98 lmt
<br />EPA 200.7 Zinc (2n ), Diss. 0.008 0.005 mg/L 12/16/98 lmt
<br />EPA 204.2 Antimony (Sb), Diss. <0.005 0.005 mg/L 12/14/98 lmt
<br />EPA 239.2 Lead (Pb), Diss. <0.002 0.002 mg/L 12/16/98 lmt
<br />EPA 245.1 Mercury (Hg), Diss. <0.0002 0.0002 mg/L 12/16/98 veb
<br />EPA 270.2 Selenium (Se), Diss. <0.005 0.005 mg/L 12/14/98 lmt
<br />EPA 279.2 Thallium (Tl ), Diss. <0.002 0.002 mg/L 12/21/98 lmt
<br />EPA 602 Volatile Organics (Aromatics)
<br /> Benzene ND 0.5 ug/L 12/11/98 dmj
<br /> Ethyl benzene ND 0.5 ug/L 12/11/98 dmj
<br /> Toluene ND 0.5 ug/L 12/11/98 dmj
<br /> %ylenes (total) ND 0.5 u9/L 12/11/98 dmj
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