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Minnesota Pollution Control Agency �� <br /> 520 Lafayette Road, Saint Paui, Minnesota 55155-3898 �D� <br /> Telephone (612) 296-6300 �� <br /> �t I N N ESOTA 1990 <br /> January 2, 1991 <br /> Mr. Jeffery Leech �AN 3 1991 <br /> 720 North Arm Drive <br /> Orono, Minnesota 55364 <br /> near Mr. Lee�h: <br /> RE: Petroleum Tank Release Site Closure <br /> Site: Leech Residence, Orono <br /> Site ID#: LEAK00001854 <br /> Thank you for your actions to protect Minnesota's environment. The Minnesota <br /> Pollution Control Agency (MPCA) staff has reviewed the Excavation Report dated <br /> September 5, 1990, and has determined that the cleanup performed in response to <br /> the petroleum tank release at the site referenced above has adequately <br /> addressed the petroleum contamination, and therefore, the file regarding this <br /> release will be closed. <br /> On October 17, 1990, a petroleum tank release was reported to the MPCA. <br /> Mr. Leech has taken the following corrective action in response to the release: <br /> l. Mr. Leech retained Maloney Construction, Inc. to remove a 1000 gallon fuel <br /> oil underground storage tank. <br /> 2. Ground water was not encountered during the excavation. <br /> 3. Dtiring tank excavation, soils were scanned for the presence of organic <br /> vapors. Eleven cubic yards of soils showing elevated levels of organic <br /> vapors were excavated and stockpiled on site. <br /> 4. A chemical analysis done on a soil sample of the excavated soils found 21 <br /> parts per million total hydocarbons. The 11 cubic yards of soil was <br /> , incorporated into cement and used on a driveway in Wright County after <br /> receiving approval from the MPCA on November 16, 1990. <br /> 5. No organic vapors or staining were detected on the sidewalls or base of the <br /> excavation after the soil was removed. Two soil samples were collected <br /> from the tank basin for applicable chemical analyses. No contaminants were <br /> detected. <br /> Regional Offices: Duluth • Brainerd • Detroit Lakes • Marshall • Rochester <br /> Equal Opportunity Employer • Printed on Recycled Paper <br />