Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
SEcC ® IR <br /> . Mr. Mike Infurna <br /> November 21, 2005 <br /> Page 3 <br /> monitoring wells will be completed with neat cement from the bentonite seal to the ground <br /> surface. Grout will be tremmied within the annular space and the PVC pipe. The well <br /> casing will be topped with a locking cap. The well head will be contained in a watertight <br /> monument well box. Proposed well construction details are included in Table 1. " <br /> Sample Selection and Analysis. If option one is pursued, no soil samples will be <br /> collected from the new well. With option two, soil samples will be collected at 10 foot <br /> interval from 130 to 180 feet bgs from the new boring. Soil samples will be analyzed for -: <br /> TPHg, BTEX, fuel oxygenates (MtBE, DIPE, TAME, EtBE, TBA, and ethanol), and lead <br /> scavengers (1,2-DCA and EDB) using EPA Method 8260. "�) <br /> °=f <br /> Monitoring Well Development and Sampling. After installation, the well will be z, <br /> developed by rigorously surging the well over the length of the screen interval and by <br /> purging approximately 10 casing volumes of water. After well development, groundwater <br /> samples will be collected from the newly installed well and sent under standard chain-of- <br /> custody procedures to a California State-certified laboratory. The groundwater samples will <br /> be analyzed for TPHg, BTEX, fuel oxygenates (MtBE, DIPE, TAME, EtBE, TBA, and <br /> ethanol), and lead scavengers (1,2-DCA and EDB) using EPA Method 8260. <br /> Report. A report will be prepared after completion of necessary fieldwork. The report will <br /> include soil boring logs, soil and groundwater analytical results, chain-of-custodyg <br /> documentation, and conclusions. a <br /> Field and laboratory procedures are presented as Attachment A. <br /> a <br /> �<f <br /> SCHEDULE <br /> SECOR is prepared to initiate fieldwork following approval of this work plan and issuance of <br /> permits by the San Joaquin County Environmental Health Department. A complete report <br /> will be prepared fully documenting the findings of the additional well installation activities. ' <br /> .'�' <br /> F� 11 <br /> J <br /> ConocoPhillips/4409/work plansNVP For Well Installation 11-05.doc <br />