GROUNDWATER DEVELOPMENT

PROPERTY TRANSFER
REMEDIAL INVESTIGATION & CLEANUP
EXPERT WITNESS
WELLHEAD PROTECTION
SOLID WASTE COMPLIANCE
WATER RIGHTS SUPPORT
DATA MANAGEMENT
• Tacoma Landfill
• Anacortes Refinery
GROUNDWATER MODELING
WATERSHED ASSESSMENT
AQUIFER STORAGE & RECOVERY
WASTEWATER & STORMWATER RECHARGE
 

Client: Shell Oil Company / Current Owner Anacortes Refinery
Project: Environmental & Hydrogeologic Data Management - Anacortes Refinery
Location: Anacortes, Washington

Background
The Anacortes Refinery has collected groundwater, soil, and pore water samples for over 25 years. Much of this sampling and analysis has been required under the refinery’s RCRA Part B Permit; the owners have also implemented long-term quarterly monitoring programs to keep abreast of any changes in soil or water quality. In addition to this chemical data, PGG had developed a vast amount of hydrogeologic information for the facility.

Challenges
The facility’s groundwater, soil, and pore water results needed to be organized into a database that would allow easy retrieval and reporting. Because chemical analyses had been performed by various laboratories, the database needed to be able to accommodate variations in reporting levels and units. In addition, this information would be far more useful if it could be related to spatial features such as hydrogeologic units, utility corridors, springs, and wells.

Approach
We developed Geographic Information Systems (GIS) model for the site. This model not only contains layers that represent aquifer and aquitard units, but it also links to a database containing information about wells, springs, utility corridors and other contaminant transport pathways, along with 25 years of soil and water quality data.

Outcome
Users can query the system and view results in three dimensions via an intuitive interface. This tool was valuable for communicating the refinery’s environmental history to Tesoro Northwest, the company that purchased the facility from Shell.

Related Projects

Property Transfer / Shell Oil Company: Environmental Investigations & Transfer of Anacortes Refinery

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