LEADING US PHOTOCHEMICAL MANUFACTURER

Site appraisal, photochemical manufacturing plant, Runcorn, United Kingdom

An assessment of site conditions at a photochemical manufacturing plant was undertaken.  Historical
site operations and former waste disposal practices were examined through an audit process including
staff anecdotal interviews and walkover surveys.

The hydrogeological setting of the area was assessed to be highly sensitive, with the site overlying thin surficial deposits above the major regional Triassic Sandstone aquifer, with downgradient public water supply bores.

A detailed sampling, analysis and health and safety plan was prepared.  Site investigation
comprised a soil vapour survey, trial pit and soil & groundwater monitoring bores.

Soil and groundwater contaminants were identified associated with the 40-year manufacturing of
photochemicals, and also previous munitions manufacture at the site, including inorganic, metals and
organic contaminants associated with photochemcial production.

The natural attenuation capacity of the surficial deposits was examined, and concluded to be insufficient to prevent the likelihood of contaminant migration.

Recommendations were made for further work to determine potential liabilities associated with the identified site conditions.

Stuart Jeffries
Hydrosolutions Pty Ltd

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