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. __ OAKLEY S�DIMENT STORAGE S1TE CORRECTIVE ACTION PLAN <br /> PUI3I.,1C CONCERN 13ACKGROUND iNFORMATION ESTIMA'I'CD ESTIMATED <br /> � AND CORRECTIVE ACTION TO BE TAKEN FUTURE TIME <br /> C1TY COST FRAME <br /> A. I�looding has occurred al 13ACKGROUND INI�OIZMA7'ION: The sub-� <br /> surface drain ptpe installed As part of Ihe <br /> tl�e east end of the storage original storage site did not fi�nction properly and resulted in the flooding of the <br /> site along Angle Crossing roadways.The layout of the original facility also resulted in a change in the storn� <br /> Road, Prairie View Road, water drainage pattern which increased the amount of surface water flowing to the area <br /> and Kitchen Road at a lar�er where flooding occuned. The City has completely replaced the drain pipe. <br /> ma�nitude than prior to <br /> construction of tl�e storage CORRECTNE ACTION TO BE TAKEN:The storm water surface draina e s stem <br /> � y $0 to 2001-2010 <br /> site. will be revised to restore the original surface drainage patterns.The area will Ue $100,000 I <br /> monitored, and if future flooding occurs,the City will perform t�e necessary design ' <br /> and construction work to provide a drainage system that will not cause more floodinb � <br /> than that would have occurred prior to the construction of the original storage site. <br /> B. Some of tl�e under��round BACKGROLIND INrORMATION: The original storage site records identify � <br /> field tile lines that were approximately twenty(20) locations where underground field tiles were intercepted. <br /> intercepted during <br /> construction of the original CORRECTN�ACTION TO II�TAKEN: At each of the locations identified from the No additional 2001.-2UO2 <br /> storage site may not be ori�inal records,the field tiles will be uncovered and checked to see if they are cost—included <br /> functioning properly. functioning properly. If they are not, investigations will be conducted to determine in site reuse <br /> ' why they are not functioning. In locations where it is determined tltat the constniction construction <br /> activity of the original storage site caused the tile system to cease fimctionins, ti�e tile costs <br /> system will be repaired. At all locations, the immediate upstream landowner will be <br /> advised of the findings of the investibations and any repairs made. At locations wl�ere <br /> the tiles flow into open ditches,ti(e outlet structures and slope protection will be <br /> installed as needed. <br /> i� During the construction activities for the reuse of the stora�e site, adjacent landowners <br /> ywill be contacted to obtain data on the location of any underground field tile systems <br /> � not previously located. �xploration trenches will be used to locate field tile in areas <br /> where tile systems are suspected to exist. Inspection wells will be installed on all <br /> � known field tile lines to aid in the future monitoring of the field tile systems. <br /> M�i�r <br /> � <br /> � . <br /> � . � <br /> N � , <br /> O <br /> U1 � ' �.. <br />