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- '�„ •.. -� - �� ._ �� -� � .--Qe�Q �„�s�.ar#-.;§yam" n <br /> -_ �"- - _...� - 1-•« _ �+P- ` .c^ __��, _ __ _ k _' 1`'. .,,ms's_�c�..'"�' {L� _ _ <br /> id! <br /> Table 2. Summary of Analytical Results - Water in pg/L (ppb) <br /> ZTHr rN�aE TOTAL XTLF� TPH as <br /> N1HlptE Z.D. a rlrs .amrF GuOLUM (1) <br /> 41091-MWl 3.6 3.7 4.2 5.7 940 <br /> 41091-MW2 21 la 21 39 950 . <br /> 43091-MW3 100 a.6 37 26 1700 <br /> 41091-MV4 xD 3.1 1.4 114 600 <br /> 41093-W5 MO ND RD ND YD <br /> .--- PRIMARY MCL 1.0 40 30 20 Na r <br /> NOTES; <br /> FPA Method 5030/8020/602 <br /> (1) - LPA Ma thod 5030 and Modified FPA Method 6015 <br /> ND - Compounds Not D■tectwd below Method Detection Lia.it■ <br /> n MCL a M"imum Contaminant Levels. Drinking Vater 9tandardti <br /> 5.0 EVALUATION OF REMEDIATION ALTERNATIVES <br /> A no-action alternative has been determined to be unacceptable for <br /> this site based on the LUFT manual guidelines and the RWQCS basin <br /> plan. Therefore, only the pump and treat remediation option has been <br /> considered. <br /> 6.0 PROPOSED GROUNDWATER REMEDIAL ACTION PLAN <br /> 6.1 Design ^riteria <br /> The primary design factor in the pump and treat system is the pumping <br /> rate required to establish hydraulic control of the contaminant <br /> plume. The ability to recover contaminants from the shallow <br /> i ! groundwater zone is largely dependent upon the location and discharge <br /> w rates of the recovery well(s) and the total plume size. Once the <br /> sustainable system flow rate for a recovery well system is <br /> established, it can be considered together with the chemical data to <br /> ,., specify materials, size plumbing and determine treatment system <br /> requirements. <br /> RESNA/WaterWork Corp. conducted a series of constant-rate pumping <br /> tests at the site to evaluate hydrologic and well conditions, and <br /> provide baseline information for the design and operation of the <br /> remedial system. The testing program comprised three separate <br /> L- elements designed to provide different types of information. The <br /> first element consisted of a brief period of static groundwater <br /> monitoring. This data was used to establish initial conditions and <br /> to aid the evaluation of the significance of water level changes <br /> observed during the latex pumping tests, <br /> r Trj second element of the test program consisted of three short term <br /> c&nstant rate tests using well MWS. This series of tests provided <br /> information regarding the well productivity and efficiency. The <br /> ` - Veber Point Propertr - 475 <br /> . H20RAP79I.TLP 5 <br />