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Monitoring gas systems with integrated asset management

On a daily basis, over 350 South Jersey Gas and contractor field utility workers use Mott MacDonald's FieldbookTM for leak management, locating underground infrastructure and entering field generated as-built documents.


South Jersey Gas is a 350,000-plus customer gas distribution utility located in New Jersey. The company required a hosted asset management solution for its engineering and operations departments.


Mott MacDonald's software solution combines GIS, hydraulic modeling, document management, and work order management.

The engagement started with the conversion of the company's facility mapping into a GIS database. This database uses rectified orthographic photography provided by the State of New Jersey as a land base. Parcel boundaries were gathered from the counties in the South Jersey Gas service area and used to locate customer meters to the parcel level.

Consumption data is analyzed annually and a consumption profile is generated for each meter based on heating degree days. Each year a calibration day is chosen. System pressure and flows on this day are used to calibrate the hydraulic model of the system.

The GIS and document system is updated from as-built records entered by South Jersey Gas using FieldbookTM remote scanning technology. Mott MacDonald updates the GIS and indexes the as-built records using the as-built documentation in an automated work flow process. Only selected South Jersey Gas personnel have the authorization to edit document records using Fieldbook.TM

Mott MacDonald is the prime consultant on this project and provides data center services, data conversion, software coding, GIS updates and data entry services. We provide project management, gas engineering, software architecture, software hosting management, engineering software design, web software, ESRI application software and quality assurance and control.


All of the company’s five divisions in southern New Jersey use the solution for day-to-day activities concerning the maintenance and expansion of the South Jersey Gas underground infrastructure.

On a daily basis, over 350 South Jersey Gas and contractor field utility workers use FieldbookTM for leak management, locating underground infrastructure and entering field generated as-built documents.

Mott MacDonald operates a data center that is used by South Jersey Gas and other Mott MacDonald clients. The data center provides a Citrix server farm, Oracle and SQL servers, application servers, file servers and ESRI ArcGIS and SDE servers in a secure environment. The data center is connected to the Internet backbone through a managed firewall. Security measures include the separation of data and application servers from Internet-facing servers, offsite tape backup and role based security.

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