Laserfiche WebLink
„ <br /> to remove stagnant water in the wells <br /> During purging, key parameters including temperature, conductivity, and <br /> pH will be measured with a portable electronic meter and recorded The <br /> purging will continue until the monitored parameters stabilize (usually <br /> after 3 to 5 casing volumes of groundwater has been removed) Following <br /> purging, groundwater samples will be collected with pre-cleaned Teflon <br /> bailers and discharged with a non-aerating, bottom-emptying device into <br /> sterilized glass containers, capped with Teflon septa, labeled, and chilled <br /> in an ice chest for transport Attachment 5 describes Groundwater <br /> Monitoring, Sampling, and Sample Management Procedures) <br /> The proposed monitoring well will be surveyed relative to the existing <br /> monitoring wells and a permanent structure, and from a designated point <br /> on the northern side of the top of the well casing, the groundwater level <br /> will be measured in the wells to an accuracy of i-0 01 foot and tied to the <br /> California State Plane Coordinate System Zone 3 for this area as well as <br /> provide latitude and longitude coordinates for the well head Vertical <br /> coordinates will be tied to the nearest vertical datum in use, most likely <br /> NAVD28 datum for this area or other local datum used by the city of Lodi <br /> groundwater investigation effort <br /> Task 8- Laboratory Analysis of Soil and Water Samples <br /> Approximately 5 to 7 soil samples from each soil boring will be submitted <br /> for analysis These samples will be submitted to Kiff Analytical for <br /> analysis by USEPA Test Method 8260B Benzene, toluene, ethylbenzene, <br /> and xylene as well as 7 gasoline oxygenates/additives will be determined <br /> by USEPA Test Method 8260B The selected oxygenates/additives that <br /> will be analyzed for include ethanol (E), tertiary-butanol (TBA), <br /> Di-isopropyl Ether(DIPE), Ethyl tertiary-butyl ether (ETBE), <br /> tertiary-amyl methyl ether(TAME), methyl tertiary butyl ether (MTBE) <br /> Lead scavengers will be analyzed and will include 1,2, Dichloroethane <br /> (1,2-DCA) and 1, 2- Dzbromoethane (1,2-EDB) <br /> At least two samples from the former UST tank area will be analyzed for <br /> CAM-17 metals and soluble lead <br /> The soil and water samples will be analyzed by Kiff Analytical LLC, as <br /> California certified laboratory#2236 <br /> Mani\D\Envvonmental\ParmarTexaco\Workplan\042003 wpd 15 <br />