. . . Is about preserving the balance of ecosystems
Rick Webb, projects coordinator at the Shenandoah Watershed Study, looks at the impact of acid deposition-or acid rain-on Shenandoah National Park, the mountains of West Virginia, and Central Appalachia. Because of the park's proximity to relatively polluted areas, it receives a high level of sulfate deposition-the highest of all national parks. The project monitors the conditions of 65 streams, sampling some of them weekly and others four times a year. Based on the data collected, Webb's group looks at trends, interprets them, and tries to make projections about the impact of acid rain. "One of the questions our work raises is whether the Clean Air Act Amendments are sufficient to protect some of the country's wild regions."

. . . Mediates between science and government policy
Asking questions is up to Webb; answering questions is part of Ivan DeLoatch's job. As an environmental scientist for the U.S. Environmental Protection Agency (EPA), DeLoatch reviews and evaluates data gathered by EPA and other sources and makes recommendations for regulations and government policy. His focus is primarily on the development of water regulations mandated by the Safe Drinking Water Act.

DeLoatch spent eight years as a bench chemist. He has also worked as a data review chemist for a private environmental management company. "These work experiences gave me the ability to incorporate technical expertise into the environmental policy arena," he says. He recommends that students interested in this area take as many courses as possible in environmental policy because having knowledge of policy issues as well as technical expertise is the key to success in this field.

. . . Has important practical applications
Isabelle Cozzarelli, a research hydrologist with the Water Resources Division at the U.S. Geological Survey, primarily studies groundwater that has been contaminated by crude oil that leaks from a pipeline when it bursts, or by gasoline when it escapes from an underground tank. Other water issues studied in her division include acid rain, radioactive elements in groundwater, and the flow of water in aquifers. "Much of the fundamental research we do has important practical applications," Cozzarelli says.

Don Johnson is a research associate at Nalco, a company that develops chemicals used in industrial water treatment. One of his projects involved developing a technology to prevent calcium phosphate from forming on the inside of industrial cooling towers. In many cases, calcium phosphate precipitates out of the water and deposits on equipment, clogging pipes and making an industrial process less efficient. "As part of my research, I looked at some published accounts of how organisms regulate the generation of mineral deposits-how a clam forms its shell, for example. Application of this knowledge helped our team at Nalco develop a class of calcium inhibitor chemistries that would be cost-effective when applied to a real industrial problem," he says.

. . . Is about a variety of jobs
Water chemists undertake a variety of responsibilities. Their titles vary as well-some of which are hydrologist, hydrogeologist, hydrobiogeochemist, water purification chemist, wastewater treatment plant chemist, surface water chemist and groundwater chemist. The range in titles reflects the interdisciplinary nature of the field, and represents the wide range of applications of the work and as well as the importance of these roles in our daily lives. Water chemists are both specialists and generalists-they use their specific knowledge about water for applications that affect whole ecosytems.
Copyright 1997 American Chemical Society

WORK DESCRIPTION
Water chemists generally work on interdisciplinary teams that may include scientists with expertise in soil culture, geology, aquatic biology, statistics, forestry, hydrogeology, chemistry, mathematical modeling, and data base management. The teams study and monitor a given ecosystem or industrial process; they discover the impact of water on other elements of the system, and, conversely, how these other elements affect the quality of the water.

WORKING CONDITIONS
Most positions include fieldwork, though industrial water chemists spend the majority of their time in the lab. Work hours may be nine to five, but can also extend in to the night and to weekends if a project calls for it. The flexibility to travel overseas is important in industry where chemists also interact with business managers, directing technical resources to meet the needs of customers.

PLACE OF EMPLOYMENT
A substantial water treatment industry exists because most manufacturing companies use water as part of their production or cooling processes. Both employ water chemists. An increasing number of jobs in industry are opening up overseas, particularly in Southeast Asia. Government positions for water chemists include those at the U. S. Environmental Protection Agency and the U.S. Geological Survey. In academia, water chemists hold teaching positions and jobs in research centers. Environmental management firms also employ water chemists for consulting and remediation projects.

PERSONAL CHARACTERISTICS
Water chemists often express a personal interest in and a commitment to the environment that goes beyond their scientific work. Chemists in industry say they enjoy doing work that safeguards water quality and that solves complex problems. Water chemists often describe themselves as very practical people with good analytical skills. They underscore the importance of being objective scientists.

EDUCATION AND TRAINING
Because this field is highly interdisciplinary, it is important to be conversant in a range of disciplines including microbiology, geology, aqueous geochemistry, geochemical kinetics, hydrogeology, and microbial ecology, among many others. Lab experience is vital and computer skills are necessary for any position. Courses in environmental chemistry will be helpful, particularly those that bring you up to speed on current policy issues.

JOB OUTLOOK
Despite strong environmental consciousness and concerns about water purity in the U.S., staff reductions in industry have resulted in a very competitive job market. Environmental consulting firms may have more openings than other areas. For those willing to live overseas, opportunities exists in developing industrial countries that need to build water treatment facilities. In academia, jobs are equally competitive and scientists caution that much of their time is spent seeking funding to finance their work.

SALARY RANGE
Federal government salaries are covered by the General Schedule (GS), a nationwide pay structure. Starting salaries for BS chemists in the federal government about $24,400. Starting salaries for inexperienced BS chemists in state and local governments are about the same. In industry, an inexperienced chemist with a bachelor's degree starts at a somewhat lower salary-about $23,000. Inexperienced doctorate chemists in government start around the $36,000-per-year range, while industry pays slightly more in the mid $40,000-per-year range.

FOR MORE INFORMATION
American Water Works Association
6666 W. Quincy Avenue
Denver, Colorado 80235
(303) 794-7711

Water Environment Federation (formerly Water Pollution Control Federation)
601 Wythe Street
Alexandria, Va. 22314
(703) 684-2400

WHAT YOU CAN DO NOW
Water chemists say the best preparation for this field is to build a broad base of knowledge that includes a solid foundation in one of the chemical disciplines. Lab courses are equally important because actual hands-on chemistry is one of the best ways to prepare for work in this field. Environmental science courses that build an understanding of government policy issues are the key to success when combined with technical expertise.

American Chemical Society, Education Division, 1155 Sixteenth Street, NW, Washington, DC 20036; (202) 452-2113. Production of career material was funded by the Alfred P. Sloan Foundation.