Hydrologist

BASIC EDUCATION REQUIREMENT: Applicants must meet A or B below to satisfy the basic education requirement for Hydrologist, all grade levels.

A. Successful completion of a full 4-year course of study in an accredited college or university leading to a bachelor's or higher degree in physical or natural science, or engineering that included at least 30 semester hours or the equivalent in any combination of courses in hydrology, the physical sciences, geophysics, chemistry, engineering science, soils, mathematics, aquatic biology, atmospheric science, meteorology, geology, oceanography, or the management or conservation of water resources. The course work must have included at least 6 semester hours or the equivalent in calculus (including both differential and integral calculus), and at least 6 semester hours or the equivalent in physics. **OR

B. A combination of education and experience-course work as shown in "A" above (30 semester hours or the equivalent in any combination of courses as specified in "A" above which must include at least 6 semester hours or the equivalent in calculus (including both differential and integral calculus), and at least 6 semester hours or the equivalent in physics), plus appropriate experience and/or additional education for a total of 4 years. The education or combined education and experience must be comparable in type, scope and thoroughness to that acquired through successful completion of a 4-year course of study as described in "A" above.

For GS-09:

In addition to the basic education requirement as stated above, applicants must meet one of the following to qualify for the GS-09 level:

2 years of progressively higher-level graduate education (36 semester hours, 54 quarter hours or the equivalent) leading to a master's degree in hydrology or other directly related field of study or master's or equivalent graduate degree in hydrology or other directly related field of study if it provided the knowledge, skills and abilities necessary to do the work of this position.

**OR one year of appropriate professional experience in hydrology that is equivalent to at least the GS-07 level in the Federal service.

Examples of such experience include performing a variety of observations, computations, compilations and analyses in assisting higher level Hydrologists in carrying out hydrologic assignments. This work experience would have involved following established methods and procedures, or detailed instructions; using some judgment in applying basic principles and procedures, and would have required a good general working knowledge of the principles and the theories of hydrology.

**OR a combination of successfully completed progressive graduate level education, as described above, that is beyond the first year of graduate study and professional experience, as described above.

For GS-11:

In addition to the basic education requirement as stated above, applicants must meet one of the following to qualify for the GS-11 level: 3 years of progressively higher level graduate education (54 semester hours, 81 quarter hours or the equivalent) leading to a Ph.D. degree in hydrology or other directly related field of study or Ph.D. or equivalent doctoral degree in hydrology or other directly related field of study if it provided the knowledge, skills and abilities necessary to do the work of this position.

**OR one year of appropriate professional experience in hydrology that is equivalent to at least the GS-09 level in the Federal service.

Examples of such experience include independent responsibility for a well-defined study or for a phase of a larger study that required the planning and carrying out of routine hydrologic work. This work would have required the individual to select and make minor adaptations to procedures and accepted practices and handle unexpected conditions arising in the normal course of the work. At this level, Hydrologists have a sound working knowledge of the principles of hydrology and the ability to independently perform moderately difficult and responsible scientific work.

**OR a combination of successfully completed graduate level education, as described, above that is beyond the second year of progressive graduate study and professional experience, as described above.

For GS-12:

In addition to the basic education requirement as stated above, applicants must have one year of appropriate professional experience in hydrology that is equivalent to at least the GS-11 level in the Federal service.

Examples of such experience include planning and executing complex hydrologic studies, which usually involved intensive investigations into recognized phenomena. This work typically involved conventional methods & techniques though it required going beyond clear precedents, and required adapting methods to the problems at hand and interpreting findings in terms of their scientific significance. At this level, Hydrologists have a very good knowledge of the principles of hydrology and their application, and the ability to independently perform scientific work of considerable difficulty.