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HomeMy WebLinkAbout2011-05-18 PACKET 04.J.REQUEST OF CITY COUNCIL ACTION COUNCIL AGENDA MEETING ITEM # DATE 5/18/11 e PREPARED BY Community Development Jennifer Levitt ORIGINATING DEPARTMENT STAFF AUTHOR COUNCIL ACTION REQUEST Receive results on the Cottage Grove Ambient Air Monitoring from the location near the 3M Cottage Grove facility. • u u gIs7Gr[ol�A Receive results on the Cottage Grove Ambient Air Monitoring. BUDGET IMPLICATION $N /A $N /A N/A BUDGETED AMOUNT ACTUAL AMOUNT FUNDING SOURCE ADVISORY COMMISSION ACTION DATE REVIEWED APPROVED DENIED ❑ PLANNING ❑ ❑ ❑ ❑ PUBLIC SAFETY ❑ ❑ ❑ ❑ PUBLIC WORKS ❑ ❑ ❑ ❑ PARKS AND RECREATION ❑ ❑ ❑ ❑ HUMAN SERVICES /RIGHTS ❑ ❑ ❑ ❑ ECONOMIC DEV. AUTHORITY ❑ ❑ ❑ ❑ ENVIRONMENTAL 5/11/11 ❑ ❑ ❑ SUPPORTING DOCUMENTS ® MEMO /LETTER: Memo from Thomas Henning, SEH, dated 5/6/11 ❑ RESOLUTION: ❑ ORDINANCE: ❑ ENGINEERING RECOMMENDATION: ❑ LEGAL RECOMMENDATION: ❑ OTHER: ADMINISTRATORS COMMENTS City Administrator Date COUNCIL ACTION TAKEN: ❑ APPROVED ❑ DENIED ❑ OTHER -A SEH TECHNICAL MEMORANDUM TO: Jennifer Levitt, PE, City of Cottage Grove FROM: Thomas A. Henning, PE, CHMM DATE: May 6, 2011 RE: Cottage Grove Ambient Air Monitoring Results SEH No. 113702 30.0 The City of Cottage Grove retained Short Elliott Hendrickson, Inc. (SEH) to conduct ambient air monitoring at a location near the 3M Cottage Grove ( "3M ") facility. The purpose of the monitoring is to measure annual concentrations of select metals and volatile organic compounds (VOC) near the incinerator operated at the 3M facility. 3M has proposed to process non -3M generated wastes in the incinerator. The monitoring is being conducted prior to this change to determine current conditions. The monitoring is proposed to continue for at least two years to also measure ambient concentrations after this change. The City will determine if monitoring is necessary beyond this two year period. Results of sampling conducted between October 11, 2010 and March 22, 2011 are provided on Table 1. Also shown on the table are the minimum and maximum ambient concentrations from the MPCA monitoring program during 2009 and health benchmarks for specific compounds. The 2009 MPCA data are provided to compare the 3M site monitoring data with the range of concentrations measured by MPCA at other locations in Minnesota. The health benchmarks are shown to compare the measured results with concentrations that could impact health. For the first six months of sampling, the results are generally comparable with background ambient air concentrations measured throughout the Twin Cities. Many of the compounds have not been detected in the Cottage Grove ambient samples. We will continue to evaluate the measured concentrations and compare them with both MPCA monitored concentrations and health benchmarks. Attachments: Table 1. 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