10-03-1988 Planning Packet - Laserfiche WebLink

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i&:m 'll;4S^ inlstrator ta Boulevard - use permit required for 100 cubic yards. The liase will involve the e purpose of treating ,ed within tc the trench »rs that will r-ventually : over 100 cubic yards of addition to the structure :rench construction. The an to place 1 inch width tvaporate waste substance Letter to Department of L Action Plan" L-’ V nma K." i| ^ j Sv- m nil 'Vff % ■S'■V'.Vi-' -•*V>‘y ■ “Ibj ’ 111^1I ; Zoning File #1340 September 21, 1988 Page 2 of 5 Beview of J^plication - As with all industrial type operations within this State, WSI is und^^r a continual monitoring program of operations under the P.C.A. guidelineri. In May of 1987, Pace Laboratories was asked to sample soil borin<(t conducted on the WSI site for construction of a new parking lot for tHe facility. In the process of analysing those soil borings, the findin*rs indicated the potential for contamination of soil and perhaps ground wat^r with volatile organic compounds. In the summer of 1987, WSI contractsd with Delta Environmental to conduct a full scale program of sampling, analysis and investigation for the purpose of correcting the problem 2nd with a recommendation for remedial action. Review Exhibit L, Delta's Remedial Action Plan, to the rear you will find several site plans. In those site plans, note the location of various monitoring wells that hi;ve been installed on the site in addition to locating the contaminateu3 area to the south of the parking lot and on another, the proposed location of the filtering trench. The contaminate has been classified as organic solv*;nt. In discussions»with Mr. Pallansch, it would appear that the hazardous substance was found in possibly the chemicals used by the company yfjars ago, and twenty to thirty years ago, it was the misguided practice to t.irow these out into the adjacent field. There is no other explanation for it as the substances do not exist naturally in soils. WSI has worked closely under the direction of the M.P.C.A. Please review the coorespondence enclosed in your pacl’.ets (Exhibits E through K). They briefly define the many interactions between the agencies that Save taken place since 1987. The M.P.C.A. has approved Delta Environment.-.I's recommendations which involve the installation of monitoring well:; to determine the extent of the contamination on the site and through the groundwater. Note monitoring wells hav-: been placed on St. Geore<e's cemetary property to the east of the subject property. The City of Oroio's formal responsibilities entered thj* soene as a result of the 1 ind alterations involved. The trench construction will allow a slow filtering process of the groundwaters and a flushing system that will be closaly monitored by the M.WX.C. and a both letter from Mr. Cook and M.W.C.C. (Exhibits D & K) suggest, it must also be monitored by the City of Oreno before it enters the sewer system. In that same packet prepared by Delta Environmental, you will find engineering diagrams of that trench, pumping chambers, filtering systems, etc. r