Exercising innovation and quality
with unparalleled integrity, Walden excels
at meeting the demands of protecting the environment while sustaining business progress.

Our Services

Walden provides innovative engineering and environmental consulting and design services in seven primary markets


What makes us different

Walden’s founder and Principal sought to provide superior technical expertise, personalized attention to clients’ needs, and outstanding results in a cost-conscious manner. These guiding principles drive us to continually expand our capabilities
and provide extraordinary service to satisfy our clients.

Innovative Engineering


Exceptional Service


Creative Solutions


Impressive Results


More About Us


Case Studies

Structural Inspection of MOSF Tanks

Posted by J. Heaney

Walden was retained to evaluate existing tanks and provide recommendations for their removal, abandonment, and replacement to suit our client’s needs at a Major Oil Storage Facility (MOSF).

  • Environmental Consulting
  • Environmental Engineering
  • Civil Engineering
More Case Studies


  • As the Town of Hempstead’s primary environmental consultant since 1995, Walden always tries to improve Town operations, manage costs, gain regulatory compliance, foster good working relationship with regulators, and ensure projects’ budgets and schedules are met. Walden’s staff are qualified and committed to providing excellent service.

    John Gibilaro
    Supervisor of Building Operations
    Town of Hempstead, NY
  • Walden has served us for more than a decade on our compliance and tank needs. They always complete their work in a professional manner and in the highest quality. From regulatory agency interaction, to spill response and tank permitting, their engineering staff is always responsive, thoughtful, and confident – I look forward to continue working with them in the future.

    Municipal Water Supplier
    Long Island, NY
  • I have worked with Walden on a number of successful projects. The professionalism of their staff and their attention to detail is exemplary. The end product is always a win-win. I wouldn’t hesitate to use them for future projects.

    Massapequa Park
    Incorporated Village of Massapequa Park, NY

Latest Articles

Environmental Engineers 23 May Andrew Oskowsky Joins the Walden Team!
Posted by Joe Heaney

Walden Environmental Engineering, PLLC is excited to welcome Andrew Oskowsky as our newest Project Engineer!…

Professional Geologist 17 May Walden Spotlight: Jessica Bluth, P.G.
Posted by Joe Heaney

Walden Environmental Engineering is pleased to introduce its first licensed Professional Geologist Jessica Bluth! Jessica…

Laboratory Results 15 May What Do My Lab Results Mean? Interpreting Laboratory Data Reports
Posted by Robert Lopinto

Laboratory Data Should Answer Questions, Not Create Them! In today’s complex world of ever-evolving and…

Pathogen Risk 10 May Proposed SPDES Update: E. coli, Enterococci, and the New York Bay
Posted by Nora Brew

Proposed Rule Change for E. coli, Enterococci, and the Reclassification of New York Bay The…

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