Engineering Services
How to Use ENVIROFACTS: The US EPA One-Stop Source for Environmental Information

How to Use ENVIROFACTS: The US EPA One-Stop Source for Environmental Information

The US Environmental Protection Agency (EPA) maintains multiple databases that contain information regarding the compliance of facilities to environmental regulations.  Even though anyone with a computer can search these databases to identify the compliance status of...

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Innovative Closure of Residual Waste Lagoon Restores Site and Establishes Natural Habitat

Innovative Closure of Residual Waste Lagoon Restores Site and Establishes Natural Habitat

Walden has prepared a Final Certification Report to document the lagoon closure activities performed at a mid-Atlantic paper mill. From 1937 to 1992, the paper mill discharged wastewater with a high total dissolved solids content into an unlined surface impoundment...

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Regulatory Update: DSNY will now Regulate Recycling Processing Facilities in NYC

Regulatory Update: DSNY will now Regulate Recycling Processing Facilities in NYC

On September 23, 2016, the New York City Department of Sanitation (DSNY) adopted rules governing new registration requirements for recycling processing facilities in NYC.  As a result, the DSNY will now regulate recycling processing facilities located in New York...

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New Underground Storage Tank Operator Training Required by the State and Federal Regulations.

New Underground Storage Tank Operator Training Required by the State and Federal Regulations.

Recent New York State Department of Environmental Conservation (DEC) revisions to the PBS and CBS regulations have resulted in the DEC issuing DER-40, Operator Training.  This program policy summarizes the requirements for training Underground Storage Tank (UST)...

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