H+A has provided hydrogeological and engineering services to assist mining clients since our founding in1979. Excelling in this service area means staying abreast of the modern day mining needs to address not only technical and regulatory challenges, but also the issues posed by public affairs concerns. H+A works collaboratively with its mining clients to plan and navigate their projects through strategic exploration, permitting, operations, and reclamation lifecycles. Our services for mining clients include:


  • Environmental investigations for baseline studies
  • Hydrogeologic analyses, waste characterization, and mine water management
  • Aquifer protection permitting, compliance, and regulatory negotiations
  • Water supply backflow prevention plans and sanitary surveys
  • Engineering designs and construction services for mining waste stream recycling and minimization
  • Mine operations and reclamation planning and closure support


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