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Screening Level Risk Assessment – Fort Langley, BC

Steer Environmental conducted a Screening Level Risk Assessment of VPH in soil, and metals (arsenic, iron, lead, manganese), VHw, LEPH, naphthalene, and VOCs (benzene, toluene, ethylbenzene, xylenes) in groundwater for a property historically occupied by commercial operations in Fort Langley, BC. The primary objective of the assessment was to determine whether chemical contaminants identified in soil and groundwater at the site pose unacceptable risk to human health or the environment and to facilitate redevelopment of the property for mixed commercial-residential use.

The SLRA found contaminant exposure pathways for human and ecological receptors to be inoperable and therefore concluded risks to be negligible with no need for remediation or active risk controls. Ongoing groundwater quality monitoring was recommended to document the natural attenuation of the hydrocarbon plume over time and to confirm that the plume remains relatively immobile.

Ongoing groundwater quality monitoring was recommended to document the natural attenuation of the hydrocarbon plume over time and to confirm that the plume remains relatively immobile.