HYDROLOGIC TECHNICIAN

For GS-03:

Applicants must meet one of the following to qualify for the GS-3 level:

Six months of general experience of any kind that demonstrates the applicant's ability to perform the work of the position or that has provided the applicant with a general knowledge of hydrologic practices and procedures;

**OR one full year of successfully completed education above the high school level that included at least one course in subjects such as engineering, industrial technology, construction drafting, surveying, physical science, biology, or mathematics.

**OR a combination of post-high school education and general experience that together equates to 100% of the qualification requirement.

For GS-04:

Applicants must meet one of the following to qualify for the GS-4 level:

Six months of general experience and 6 months of specialized experience equivalent to at least the GS-3 level in the Federal service that is in or related to the duties of this position. NOTE: Excess specialized experience beyond the required 6 months may be substituted for general experience; i.e., one year of creditable specialized experience will meet the requirements for 6 months of general experience and 6 months of specialized experience. General experience is any type of work that demonstrates the applicant's ability to perform the work of the position to be filled, OR experience that provided a familiarity with the subject matter or processes of the broad subject area of the occupation for which the applicant is applying.

Specialized experience may include work as a technician or aid in engineering, earth, physical, or natural science, forestry, soil conservation, or surveying; trades or crafts work in maintenance or construction of facilities or equipment related to hydrology; drafting; or construction estimating if it equipped the applicant with the knowledge, skills and abilities to perform successfully the duties of this position.

Examples of GS-3 level work assignments include: 1) Performing minor repairs at gaging stations, to water level recorders and other equipment used in hydrologic investigations; 2) Assisting in making measurements of stream flow or making simple current meter measurements on small streams; 3) Recording routine measurements of water levels at specified observations wells; 4) Collecting water quality samples and assisting in making laboratory determinations of water quality parameters by predetermined methods; 5) Maintaining and assisting in readying current meters and sampling equipment for field work. For examples 1-5, a designated authority made assignments by giving complete, explicit oral and/or written instructions at the beginning of each assignment, covering work methods, available equipment, procedures, reference guidelines, etc. Recurring assignments were carried out within well-established procedures, with minimal instruction and were only infrequently spot checked or observed by a designated authority. Less routine assignments were occasionally checked in progress or upon completion.

**OR applicants may substitute successful completion of two full years of study that included at least 12 semester hours, or the equivalent, in any combination of courses such as engineering, industrial technology, construction drafting, surveying, physical science, biology, or mathematics.

**OR a combination of successfully completed post-high school education and specialized and/or general experience may be used to meet the qualification requirements for the GS-04 level. NOTE: When crediting education to meet any part of the experience requirement, such education must include the appropriate number of directly related credit hours required in any combination of courses such as engineering, industrial technology, construction drafting, surveying, physical science, biology, or mathematics. When crediting this education, you must prorate the number of hours of directly related courses required as a proportion of the total education to be used.

For GS-05:

Applicants must meet one of the following to qualify for the GS-5 level:

One year of specialized experience equivalent to at least the GS-04 level in the Federal service that is in or related to the duties of this position. Specialized experience may include work as a technician or aid in engineering, earth, physical, or natural science, forestry, soil conservation, or surveying; trades or crafts work in maintenance or construction of facilities or equipment related to hydrology; drafting; or construction estimating if it equipped the applicant with the knowledge, skills and abilities to perform successfully the duties of this position.

Examples of GS-4 level work assignments include: 1) Making adjustments and minor repairs to water level recorders, or other equipment used in water investigations; 2) Following well-defined methods and designated formulas; computing, extracting, compiling, and presenting geological or hydrologic data in prescribed tabular or graphic form; 3) Computing mean daily gage heights from water stage record charts, editing record tapes, and making corrections based on field notes. For examples 1-3, the work assignments involved familiar conditions, concepts, and methods that were made in terms of the objectives to be achieved without explicit instruction as to work methods. Assignments involving new, more difficult, or unfamiliar areas of work were given with more specific guidance. Explicit instructions were provided for solving technical problems involving unfamiliar conditions, methods, or concepts.

**OR Applicants may substitute successful completion of a full four year course of study leading to a bachelor's degree (a) with major study in an appropriate field of science (i.e., geology, chemistry, physics, geophysics, biology, ecology, mathematics, soils, forestry, meteorology, hydrology, oceanography, physical science, atmospheric science) engineering, construction, or industrial technology, or (b) that included at least 24 semester hours, or the equivalent, in any combination of courses such as engineering, industrial technology, construction drafting, surveying, physical science, biology, or mathematics.

**OR A combination of successfully completed post-high school education and specialized experience may be used to meet the qualification requirements for GS-5. Only progressive education in excess of the first 60 semester hours or 90 quarter hours (i.e., beyond the first two years) of a course of study leading to a bachelor's degree is creditable toward meeting the specialized experience requirement, assuming the education includes the appropriate number of directly related semester hours, or the equivalent, in any combination of courses such as engineering, industrial technology, construction drafting, surveying, physical science, biology, or mathematics.