Remediation Engineering

H+A engineers provide remediation expertise that spans a range of engineering services and disciplines. We work to develop site-specific goals, including the lifecycle implications of proposed remedial alternatives, to reach a successful project conclusion for our clients. Our engineering proficiency includes mechanical, civil, chemical, and environmental disciplines and our engineers have the ability to carefully evaluate our clients’ problems and provide long-term solutions. H+A routinely prepares engineering plans and specifications, obtains necessary permits, provides construction management services, and treatment system operation and maintenance.


Range of Services

  • System Design & Construction Designing and implementing soil and groundwater remediation systems ranging in size from small pilot tests to large full-scale treatment systems

  • Treatment Technologies Evaluating treatment technologies, ranging from simple filtration, liquid/vapor carbon absorption, and ion exchange resin systems to highly complex chemical oxidation, thermal oxidation, bioremediation, engineered wetlands, refrigeration/ condensation, fluidized bed reactors, and acid-gas dry scrubbing treatment technologies

  • Contaminant Experience Treating various types of contaminants including metals, PCBs, VOCs, SVOCs, nitrate, sulfide, 1,4-dioxane, perchlorate and petroleum compounds, and evaluation of treatment alternatives for emerging contaminants including PFAS

  • Operations & Maintenance Operating and maintaining remediation systems; including trouble-shooting, management and evaluation of data, preparation of regulatory documents, tracking of system operational metrics, tracking permit compliance, verification of health and safety practices, and making recommendations for system optimization


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