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ii <br /> Page I of 2 <br /> Mike Infurna [EH] <br /> From : Mike Infurna [EH] <br /> Sent: Wednesday, February 03 , 2010 4 :02 PM <br /> To: 'jneely@craworld .com' <br /> Cc: 'denis . 1 . brown@shell .com' <br /> Subject: former Shell 2575 Country Club <br /> Gentlemen , <br /> I was onsite today for the limited groundwater sampling event at the above noted <br /> subject site . All went fine with Blaine Tech and the procedures . <br /> I noticed a problem with three of the wellheads . . . only dirt inside each of them . NO <br /> seal . no barrier to vertical migration of liquids from the leaking boxes . <br /> I like you to add a little grout inside each of the well boxes so that there is no dirt <br /> visible inside the large boxes for MW-5R , MW-8 , & MW- 18 and any liquid that <br /> entered the box would just puddle and NOT migrate downward . These boxes have <br /> a large yellow plastic inserts that incorporate the many hoses , lines , etc , needed for <br /> the former remediation system . All of the lines are INSIDE the yellow sleeves , but <br /> the area around the outside of the plastic to the inside of the traffic box is just dirt , <br /> unsealed , and providing a preferential pathway to the shallow gw at the site from <br /> any liquid that seeps into the box . <br /> Please pour at least a thin layer ( NLT 1 -inch thick ) neat grout seal inside of these <br /> boxes to inhibit the migration of any surface fluids that appear to be getting inside <br /> each of these boxes . From what I saw in each , this should not be a big job and <br /> something that your contractor could handle with a bag or two of cement , water, and <br /> a five gallon bucket. I saw no need for digging or jack hammering . MW- 18 dirt is <br /> chunky and looks like a cultivated field . Smoothing this out may be the most effort <br /> needed before adding the grout to any of the wells . <br /> If you need more than an email to get this handled , let me know . I ' ll generate an <br /> official letter and upload it to Geotracker after I mail it off. . <br /> let me know if this email is adequate and when the work is planned . I 'll be onsite <br /> to sign off the inspection . <br /> thank you . <br /> 2/3/2010 <br />