Visit Us Online: http://www.maddoxandassociates.us

Maddox & Associates, Inc. is a California-based, hydrogeology firm offering services nationwide. We have over 20 years of experience servicing clients throughout the US, including private and public entities, insurance companies and acting as expert witnesses and consultants to all parties. We take pride in offering each of our clients the knowledge and expertise to understand their individual challenges. From the beginning to the end of every project we ensure we give the best at what we do by always understanding the needs and budgets of our clients.

As hydrogeologists, our services include delineation of the source(s) and extent of contamination in subsurface soils and groundwater, interpretation of subsurface conditions controlling flow and transport, analysis of groundwater flow and contaminant transport.

During the initial stage of a site evaluation, also known as a Phase I investigation, we will identify potential or existing environmental contamination liabilities. The analysis will address both underlying land as well as physical improvements to the property. The Phase II environmental investigation, is conducted when a "recognized environmental condition" (REC) is found during the Phase I ESA. If there is evidence that soil and/or groundwater contamination is present at a site, a Phase II investigation and action plan is undertaken. In Phase III, site remediation services, are performed when previous ESA's positively identified the presence of contaminated material on the subject property. Once it has been confirmed that the site has been impacted by contaminants, Maddox & Associates will design appropriate remedial systems for specific site conditions.

Our site closure program design consists of a strong knowledge base alongside a good closure strategy, as well as a closure management and decommissioning plan. Where applicable, we perform Natural Attenuation studies-specifically investigations to determine whether Natural Attenuation is occurring in the site subsurface. Natural Attenuation is just one of the alternative cleanup technologies used by Maddox & Associates to bring about site closure.

All of our Enviornmental Projects involve the use of environmental sound science to support litigation. Typical tasks for hydrogeologists include delineation of the source(s) and extent of contamination. At Maddox & Associates, Inc. we also provide landfill engineering services. We have extensive sanitary landfill experience involving the installation of methane gas collection/migration wells and groundwater monitoring wells in the United States and Canada. These services include the evaluation of methane gas production/migration and groundwater leachate contamination.

Steve Maddox - Chief Geologist