Environmental Aspects ofNatural Gas Mid-stream

Operations

(an overview)

June 2004

Presentation by

Bruce Kosugi

OGC SCEK Fund Workshop

June 10, 2004

For Discussion

• What are Mid-stream Operations?

• How do they interact with the environment (Aspects)?

• Discussion

Mid-Stream Operations

• Gathering

• Processing

• Transmission

Gathering

Processing N

Transmission

The System

Aspects

Environmental Aspects are related to:

–Water

–Soil

–Air

–Habitat

Water

• Effluent Quality and Quantity

• Thermal Conditions

• Water Use

Soil

• Maintaining Soil Structure and Quality

• Avoiding Contamination

• Reclamation

Air

• Acid Rain• Ground Level Ozone/Smog• Stratospheric Ozone

Depletion• Toxics• Particulates• Noise• Greenhouse Gases

Habitat

• Planning and development of projects (pipelines, facilities)

• Protecting sensitive habitat, avoiding sensitive time periods

Discussion