Providing premier environmental and geotechnical solutions since 1988.

City & County of San Francisco, Department of Public Works As-Needed Contracts

San Francisco County

Treadwell & Rollo provided environmental risk assessment and management consulting services for the City and County of San Francisco.  Our as-needed contracts for the Department of Public Works included Phase ...

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Schlage Lock

San Francisco County

Treadwell & Rollo was retained to remediate contamination at Schlage’s historic San Francisco manufacturing plant, under the review and authority of the California Department of Toxic Substances Control and the ...

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