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Our Clients

QES has earned the privilege to serve clients in both the public and private sector, and their counsel, in a vast array of land contamination matters.

Clients rely on QES to be responsive to ever-changing project demands and to provide thoughtful, thorough analyses, defensible findings and a well-communicated work product. We pay careful attention to detail while keeping the big picture in view.

We value our clients, and we are proud of the amount of repeat business we receive each year.

From client letters of recommendation

“In addition to preparing a technically sound work product, Catherine has proven to be an effective negotiator. I have come to rely upon Catherine for technical excellence, a defensible work product, effective communications, and responsiveness. I’ve enjoyed working with her.”
Gene LuceroPartner, Latham & Watkins, LLP
“Catherine is very easy to work with, always prompt and thorough in her communications with my office, and is quite well respected amongst her peers and other counsel in the case. I can wholeheartedly recommend her as an environmental expert for even the most complex and challenging cases.”
Eric FrancisconiPartner, Barnes, Crosby, FitzGerald & Zeman, LLP
“I have come to rely on Catherine’s instincts, talent, hard work, and professionalism. I intend to retain Catherine on many more projects as they come in.”
Steve O’NeilPartner, Sheppard Mullin Richter & Hampton, LLP

Sectors we serve

Counsel

  • Environmental and litigation counsel
  • Transaction and real estate counsel
  • City and county attorneys

Private sector

  • Industrial and manufacturing facilities
  • Petroleum pipelines, terminals and stations
  • Developers, investors and financiers

Public sector

  • Ports, including Los Angeles, Long Beach and Stockton
  • Municipalities and water districts
  • Government bases and federal agencies

Tell us about the site and the deadline

Call or write and you will speak with the people who will do the work. We will tell you plainly what a defensible path forward looks like.