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Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancasterlabs.com <br /> Page 2 of 3 <br /> Sample Description: SB-42-W-091116 Grab Water LLI Sample # WW 5839241 <br /> Mountain House #6 SAIC LLI Group # 1171329 <br /> Mountain House #6-Tracy,CA NA SB-42 CA <br /> Project Name: Mountain House Development <br /> Collected: 11/16/2009 12:55 by LH Account Number: 11413 <br /> Submitted: 11/17/2009 09:10 Chevron Environmental Mgmt Cc <br /> Reported: 12/03/2009 at 11:06 6111 Bollinger Canyon Road <br /> Discard: 01/03/2010 BR1Y/3484 <br /> San Ramon CA 94583 <br /> MOU42 SDG#: OVW66-03* <br /> As Received <br /> CAT As ReceivedDilution <br /> Analysis Name CAS Number Program <br /> No. Result RL Factor <br /> Metals Dissolved SW-846 6010B ug/l ug/l <br /> 01750 Calcium 7440-70-2 127,000 70.2 1 <br /> 01754 Iron 7439-89-6 N.D. 52.2 1 <br /> 01757 Magnesium 7439-95-4 68,200 17.2 1 <br /> 07058 Manganese 7439-96-5 1,040 0.84 1 <br /> 01762 Potassium 7440-09-7 1,150 239 1 <br /> 01767 Sodium 7440-23-5 557,000 4,330 10 <br /> Wet Chemistry EPA 300.0 ug/1 ug/1 <br /> 00224 Chloride 16887-00-6 580,000 40,000 200 <br /> 00368 Nitrate Nitrogen 14797-55-8 2,700 250 5 <br /> 01506 Nitrite Nitrogen 14797-65-0 N.D. 400 5 <br /> 00228 Sulfate 14808-79-8 491,000 15,000 50 <br /> EPA 351.2 ug/1 ug/1 <br /> 00217 Kjeldahl Nitrogen n.a. N.D. 500 1 <br /> EPA 365.1 ug/1 ug/1 <br /> 00345 Total Phosphorus as PO4 water 14265-44-2 980 250 1 <br /> SM20 2320 B ug/1 as CaCO3 ug/l as CaCO3 <br /> 00202 Alkalinity to pH 4.5 n.a. 414,000 460 1 <br /> 00201 Alkalinity to pH 8.3 n.a. N.D. 460 1 <br /> 01454 Bicarbonate Alkalinity n.a. 414,000 460 1 <br /> 01455 Carbonate Alkalinity n.a. N.D. 460 1 <br /> SM20 2510 B umbos/cm umbos/cm <br /> 00280 Specific Conductance n.a. 3,290 1.7 1 <br /> SM20 2540 C ug/1 ug/l <br /> 00212 Total Dissolved Solids n.a. 2,190,000 77,600 1 <br /> SM20 4500NH3 B/C ug/1 ug/l <br /> modified <br /> 00221 Ammonia Nitrogen 7664-41-7 N.D. 200 1 <br /> General Sample Comments <br /> State of California Lab Certification No. 2501 <br /> This sample was field filtered for dissolved metals and hardness. <br /> All QC is compliant unless otherwise noted. Please refer to the Quality <br /> Control Summary for overall QC performance data and associated samples. <br /> #=Laboratory MethodDetection Limit exceeded target detection limit <br /> N.D.=Not detected at or above the Reporting Limit <br />