PIPELINE BUDGET: £ 70,000,000

Date: June 2006 to January 2008___________________________________Client: National Grid Gas Transmission___________________________________

AssignmentWardell Armstrong were commissioned to provide environmental and engineering consultancy support during the design and early construction phase of the Asselby to Pannal gas pipeline. This also included the provision of a full time on-site environmental adviser to the project. The 65 km pipeline between East Riding of Yorkshire and North Yorkshire was commissioned to carry supplies of natural gas from new offshore gas fields in the North Sea (approximately 5% of the UK’s gas supply) and reinforce the National Gas Transmission System by providing part of the first east-west link across the Pennines.

ScopeThe works involved:

Reviewing contractor’s EIA & other documentation to ensure all information was correct and related to NG policies, current legislation and best practice

Undertaking route surveys and providing input into the environmental impacts of reroutes, crossing methodologies and layout of site yards etc.

Advising on protected species, environmentally sensitive areas,

pollution prevention, waste management etc. and the proposed mitigation techniques.

Co-ordinating liaison meetings with statutory and non-statutory consultees.

Site and desktop survey to identity all springs & private water supplies within 2km of the pipeline centreline. Detailed Risk Assessment of possible influence construction activities and provision of mitigation measures where required. Design and implementation of questionnaire sent to all households/ landowners within 2km of pipeline to identify previously unrecorded supplies.

Ecological pre-works surveys to inform route selection.

Monitoring on-site archaeological works and production of weekly progress reports.

Mining surveys and detailed report to inform route selection.

Flood

Risk

Assessment of the AGIs and Pipeline. (14km of route in EA defined flood zones). Advising on mitigation such as bunding, working practices and emergency procedures.

Production of Scope of Works for Site Investigation and design of Quality

ASSELBY TO PANNAL 1220mm DIAMETER GAS PIPELINE AND AGI ENHNACEMENT.

Pre-start Ecology SurveysMining SurveysPrivate Water Supply and Hydrology AssessmentEnsure Legislative ComplianceOn Site Environmental ManagementProtected SpeciesRoute PlanningSupervision of production of EIA and Project Documentation

PIPELINE BUDGET: £ 70,000,000

Management Audit, including overwater works in the River Ouse, to ensure works carried out to NG and legal requirements; and BS5930. Auditing of site investigation contractors in both tender and site works stages.