Impacts of Residual MGP Waste on Existing and Proposed Natural Gas Utility Distribution Infrastructure: A holistic approach to successful development on former MGPs

0

Poster:

Impacts of Residual MGP Waste on Existing and Proposed Natural Gas Utility Distribution Infrastructure: A holistic approach to successful development on former MGPs

Presenter:  Jamey  Stynchula, P.G. (GEI Consultants, Inc.)
Authors:  Jamey Stynchula, P.G. and Jeena Sheppard (GEI Consultants, Inc.), Chris Langman (UGI Utilities, Inc.)

Abstract:

Properties that historically have had Former MGPs operations are often serve as active service centers for natural gas storage and distribution.  As the energy services and natural gas market continues to expand, these properties become vital to the industry’s growth.  Residual MGP materials from former operations including purifier box waste, coal tar, liquids in subsurface vessels and piping, as well as historic fill, often remain in place by not being remediated or being managed in place with the use of engineering and institutional controls.  Former materials and structures can have adverse impacts on existing infrastructure and complicate design and planning for infrastructure growth.  The demand for natural gas grows and additional storage and distribution capacity are required, or aging infrastructure requires replacement, significant costs can be incurred due to unanticipated subsurface conditions.  Deleterious effects can include corrosion of below grade foundation elements and piping due to low pH purifier material, structural settlement due to poorly compacted Historic Fill, worker health and safety, air quality issues, and soil spoils and groundwater management.  The Steelton for MGP is used as a case study to exam these problems.  Based on lessons learned during recent infrastructure improvements, a holistic approach to investigation, design, construction, and operations and maintenance is examined as a method to reduce short term and long term costs for maintaining and upgrading infrastructure.  The use of multiple disciplines (environmental, geotechnical, civil and mechanical engineering, and construction management) during initial investigation and planning of infrastructure can proactively address issues during critical aspects of a project. The understanding of Former MGP facilities operations and wastes, use of a Soil and Materials Management Plan, proper pre-characterization of soils for disposal, and deep foundation design are discussed holistic approach to handling former MGP facilities challenges as they pertain to present and future energy services infrastructure growth.

To view the full Poster Presentation List for MGP 2017 view this link:

http://mgpsymposium.com/poster-presentations/

Developed by Autograph Media Group