Puerto Rico Aqueduct and Sewer Authority (PRASA)

Clean Metals Analysis component of environmental testing for EPA 301(h) compliance. Quarterly testing of receiving waters, influent, and effluent samples and annual testing of tissues and sediments for a wide array of elements including Ag, Al, As, B, Ba, Be, Cd, Cr, Cu, Hg, Mn, Ni, Pb, Sb, Se, Tl, and Zn. High Quality Assurance (similar to EPA level IV) project.

Tetra Tech

Extensive analyses for mercury and arsenic in hundreds of sediment, water, invertebrate, and fish samples collected near deep-sea platforms to characterize the impact of drilling on the surrounding environment. Performed additional speciation analysis including selective sequential extractions on sediments and inorganic arsenic analysis in tissue samples.

Louisiana Department of Environmental Quality

Monthly sampling of both brackish and fresh water bodies for analysis of As, Cd, Cr, Cu, Hg, Pb, and Zn. Facilitate the rapid turn around of information on hundreds of samples a month, thereby allowing rapid respond when water quality becomes an critical issue during hurricane season.

URS

Extensive Se speciation analysis for samples collected from an agricultural region to determine the effectiveness of a bioremediation project.

South Florida Water Management District

Mercury and methyl mercury analyses on thousands of samples in a variety of matrices (water, soil, sediment, plant and animal tissue) for several overarching monitoring and research projects. Client-specific reporting and electronic data deliverable requirements.

Conoco Phillips

Mercury speciation analyses to assist understanding of the various processes in operations and long-term trends.

Alcoa

Quarterly analysis of Bauxite, Liquor, Oxalate, and Alumina samples for mercury.

Minnesota Pollution Control Agency

Mercury and trace metals analyses for monitoring projects throughout the state. Provide large volume of pre-cleaned tubing and in-line filters for low reporting limits.

Larry Walker Associates

Mercury and trace metals analysis for various projects, including metal translator studies and storm water events; providing pre-cleaned inline filters and tubing for sample collection.

Sacramento Regional Wastewater Treatment Plant

Monthly and quarterly analysis of wastewater samples for low-level metals, mercury, and methylmercury.

East Bay Municipal Utility District

Determine the most accurate means of assessing heavy metals content in a complex aqueous matrix produced during reverse osmosis processing. A variety of preparation methods was employed during pilot study to produce comparative data and select the most appropriate for each analyte.

City of Spokane

Bi-monthly analyses of wastewater for mercury and trace metals in support of the City’s Clean Metals monitoring project.

University of Alaska

Analysis of hair and bone samples from caribou, seal, sea otter, reindeer and other animals for mercury and methylmercury in support of published research.