H+A has 40 years of experience supporting clients in the legal arena. Our environmental and engineering staff experts routinely help lawyers develop a working knowledge of complex, scientific and technical issues that supports their case-winning legal strategies.

At H+A we zero in on technical clarity. We grasp clients’ most challenging problems quickly because, in addition to our comprehensive qualifications and capabilities, H+A knows the key issues and can flesh-out the nuances that signal red flags. Along with expert legal support for attorneys, H+A offers a range of environmental risk management services including:


  • Expert reports and testimony for deposition and trial; mediation and settlement negotiations
  • Contaminant source, timing, and fate & transport evaluations
  • Identification of responsible parties
  • Cost allocation and technical consultation for insurance recovery
  • Real estate environmental site assessments and investigations


9171 Towne Center Dr., Suite 375

San Diego, CA 92122

(858) 455-6500


80 Blue Ravine Rd., Suite 106

Folsom, CA 95630

(916) 827-0114



1640 S. Stapley Dr., Suite 209

Mesa, AZ 85204

(480) 345-0888



7400 N. Oracle Rd., Suite 202

Tucson, AZ 85704

(520) 881-7300