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6.2 Data Anomalies <br /> No data anomalies were found during this quarter's sampling <br /> 6 3 Narrations from Sampling Procedures i <br /> 3. <br /> Field testing for natural attenuation indicators of groundwater samples, including pH, <br /> ' conductivity, and temperature, was not conducted this quarter These measurements, however, <br /> will be included in each subsequent report <br /> 3 <br /> ' 6.4 Well Conditions and Appearance of Purged Water <br /> 6 4 1 MWA <br /> ' Water purged from MW-1 is silty with a slight hydrocarbon odor The seal at grade has been <br /> deteriorating since installation due to the large number of trucks that pass over it daily Also, <br /> the well cap needs replacement <br /> ' 6.4 2 MW-2 <br /> 3 <br /> The water purged from MW-2 has visible floating product but is otherwise clear As with MW- <br /> 1,the seal at grade and the well cap are deteriorating <br /> ' I <br /> 6 4 3 MW-3 <br /> MW-3's purged water is clear and free from any floating product The well cap needs <br /> replacement <br /> lie 6 4 4 MW-4 <br /> Water purged from MW4 is silty with a slight hydrocarbon odor The well is in good <br /> condition <br /> 6 5 Management of Purge Water <br /> ' Water purged from MW-1, MW-3 and MW-4 as well as decontamination water was placed in <br /> an on-site 55-gallon drum and labeled <br /> 1 � 6.6 Recommendations <br /> El recommends <br /> 1 ` Continued removal of floating oil from MW-2 every four weeks until motor oils no <br /> longer appear <br /> 1 ' Continued quarterly monitoring of the four groundwater monitoring wells at CTL to <br /> F accumulate data as a basis for future actions, or to show when contamination levels <br /> ' have dropped to insignificant levels <br /> ■ Replace the seal at the grade of MW-1 <br /> 11 � 5 <br />