It has been observed that the de-watering techniques being used by IC at the site of construction of culvert are inadequate to lower the underground water level. The depth of excavation below the water table exceeds the lift capabilities of existing dewatering techniques and the above ground apparatus might interfere with construction. It is IC responsibility to ensure that the recommendations made by the designer, geo-technical consultant and the Aramco CSD are incorporated and best possible means and methods are deployed to meet the site requirements and time schedule. IC is urged to provide calculations to prove that the de-watering systems being used are designed according to the soil conditions and depth of required excavations.

The geo-technical investigation provided to IC during bidding stage clearly mentions that the subject area has loose soil. In case IC prefers to improve the soil instead of adopting the adequate de-watering method, such shall be done at no cost to Saudi Aramco.

IC shall ensure that no scope change or cost/schedule implication arises from this letter.

Should you have any questions, please contact Sohail Moughal, Project Engineer at 012 422-4570.
