Title
143rd Street and LaGrange Road Intersection Improvements - Contaminated Soil - Change Orders
History
At the May Committee and Board meetings, a Change Order item was prepared, presented and approved which allocated $350,000 to Brothers Asphalt Paving, Inc. (Brothers) for the added costs associated with the discovery, excavation, transport and disposal of contaminated soils found as a part of the watermain relocation project at 143rd Street and LaGrange Road.
Subsequently, at the July Committee and Board meetings, a follow-up item related to the original Change Order was presented and approved which provided for a deductive Change Order with Brothers in the amount of $149,463, leaving a not-to-exceed value of $200,537 remaining as payable to Brothers from the May action to fund the added costs associated with the contaminated soils matter.
Also at the July Committee and Board meetings, approval was provided to award a contract to RAMSCO, Inc. to test, load, manifest, transport and dispose of contaminated soils in an amount not to exceed $119,902.32 (removed $149,463 from Brothers authorization). The dollar value presented and awarded was based upon an estimate of the volume of contaminated soils that were expected to be excavated and disposed. At this time, our understanding based upon best information available, is that all contaminated soils have been excavated by Brothers as a part of the watermain relocation project at 143rd Street and LaGrange Road. The actual quantity of excavated special soil related to the watermain relocation portion of the project is now known, as we have completed the watermain installation work.
As the original contract award with RAMSCO was based upon estimated quantities, and the actual excavated quantity of contaminated soils is greater than our estimates due to the discovery of previously unknown contaminated soil, the costs for the work have exceeded Board approved limits requiring that additional funding for t...
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