About Us

staff collaborating

ADH Technical Services, Inc. dba ADH Environmental (ADH) is a California Corporation established in 1999. ADH’s offices are located in Soquel, McKinleyville, and Redding, California, with other field offices located strategically around the state. ADH is a very nimble corporation able to provide our services throughout central and northern California focused on water quality issues ranging from small/routine to large/high profile projects requiring an elevated degree of business and technical sophistication.

Staff Expertise

staff collaborating

As an environmental consulting services corporation, ADH’s staff is comprised of storm water and surface water quality management professionals, professionally certified engineers, professional geologists, engineering geologists, qualified SWPPP developers  and practitioners, hydrogeologists, oceanographers, biologists, and database management personnel.  ADH staff have up to 30 years of experience in serving both public and private sector clients.


working the storm water station

In addition to providing superior professional services, ADH can assist in meeting important diversity supplier contractual requirements.

U.S. Small Business Administration8(a) and a Small Disadvantaged Business (SDB)


California Unified Certification ProgramDisadvantaged Business
Enterprise (DBE)


California Public Utilities CommissionMinority Business Enterprise (MBE)


California Department of
General ServicesMicro Business (MB)


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