Local Address
27755 Diehl Road
Warrenville, IL 60555

Contact - Tom Kowalski
Phone - (630) 836-1700
Fax - (630) 836-1711
E-Mail Address -tkowalski@ensr.com

Firm Classification - Engineering and Consulting Firm

Total Staff: Local: 73, National: 1,300

Additional Offices
Minneapolis, MN; Pittsburgh, PA; Detroit, MI; Milwaukee, WI; Houston, TX; Dallas, TX; Cincinnati, OH; St. Louis, MO Westford, MA (Corporate Office)

Areas of Expertise
Air quality permitting, testing and design; water quality permitting, planning, testing and design; wastewater testing and design; wetlands delineation & mitigation; EH&S compliance training, auditing, program development; ISO 14000 auditing; RC14001; environmental due diligence assessments, phase I, phase II assessments; RI, FS, risk assessments, remedial design, remedial action & operation/maintenance of remedial systems; EMIS

Special Capabilities
DNAPL remediation design & implementation Oxidative treatment of contaminated water, well development, and odors International capabilities in all service areas EH&S outsourcing

Completed Projects
EMD Chemicals – RC14001; Arch Chemicals – RC14001; Confidential Client – international audits; Citgo – air permitting; Premcor – air permitting and auditing; Barrie Park – construction oversight and air monitoring; Alcoa – remediation; Retail petroleum – UST removal, clean up and risk assessment; United Airlines – environmental management services

Officers, Principals, and Marketing Personnel
Robert Rittmeyer - Regional President
James Barbato - Operations Manager
Bridget Williams – Marketing Coordinator