Williams has recently successfully constructed a pipeline in the Chester Valley karst region which is underlain by some of the same carbonate formations that the Atlantic Sunrise pipeline will cross. To address risks associated with karst features identified prior to or during construction, Williams will develop and implement measures to avoid, minimize, or mitigate impacts on karst features and groundwater as a result of project construction and operation.
Land disturbed during the construction period will be returned as closely as possible to the original condition. Agricultural lands will be properly restored using approved, modern mitigation techniques. Land Representatives will meet with all directly affected landowners to assess any particular issues or concerns that the landowner may have, such as impact to landscaping or structures such as fences, sheds or playground equipment. Landowners will be compensated for physical damages to property not restored by our contractor following construction.
To avoid such an accident, you should be sure to point out the location of any underground utilities or structures to your land agent prior to construction to minimize the potential for disruption. However, you will be provided with the names and numbers of Williams personnel you can contact in the event of a mishap. To ensure all issues and problems are properly and promptly addressed, we would prefer that you deal directly with a Williams employee and not the contractor performing the construction.
On improved lands, topsoil will be excavated and segregated into separate stockpiles to allow for the re-establishment of the original soil profile. In agricultural fields, hayfields and other fields used for crops, the top 12 inches of topsoil will be segregated into a separate stockpile. In places that have less than 12 inches, all of the topsoil will be removed and stored separately. Once construction is complete, the subsoil will be placed into the trench first, followed by the topsoil.
The right of way will be graded after construction to allow normal water drainage. All drainages will be returned to their original patterns. The right of way may be terraced, seeded, mulched or otherwise stabilized to prevent erosion.
All construction activities will be restricted to the right of way and temporary workspace areas granted during the negotiations. Only those private roads agreed to in advance will be used by the construction crews.
The total width of the construction work space will vary depending on such factors as slope, soil conditions and regulatory requirements. Generally, approximately 80 to 125 feet of workspace will be required to construct the pipeline. All temporary work space will revert to the landowner upon completion of construction, with no restrictions.
In any one area, the bulk of the work is normally done in six to eight weeks.