This is technical work in the performance of a variety of standardized tests and laboratory procedures for the Miami-Dade Water and Sewer Department.

Employees in this class are responsible for conducting qualitative and quantitative laboratory examinations of potable water and related pollutants. Duties include preparing various media, solutions and reagents and conducting tests to identify water pathogens and indicator bacteria. Related work includes collecting bacteriological samples, conducting daily routine water and chemical analyses, and preparing solutions and reagents for testing. Routine work is performed independently following established procedures for the examination of water and wastewater. Supervision is received from a professional superior who reviews work for accuracy of results and conformance with established laboratory procedures and techniques.

ILLUSTRATIVE TASKS

Collects bacteriological samples in compliance with regulatory requirements or in response to customer complaints.

Performs bacteriological tests on raw, treated and distribution samples.

Performs daily routine chemical analyses on raw and treated water samples.

Prepares chemical reagents for bacteriological and chemical tests under the supervision of a professional chemist.

Assists in instrumental analyses involving sample preparation and actual running of samples.

Assists in the preparation of State Board of Health report and reports to other governmental agencies; prepares vehicle mileage and condition reports.

Receives and responds to customer complaints, as necessary.

Provides assistance to chemists in the conduct of various research projects.

Cleans glassware and assists in the maintenance of laboratory equipment.

Informs chemists when reagents or equipment require reordering or repairs.

Performs related work as required.

KNOWLEDGES, ABILITIES, AND SKILLS

Considerable knowledge of the basic principles of chemistry and microbiology as related to standardized tests and procedures performed in a water quality laboratory.

Considerable knowledge of laboratory methods and procedures used in determining drinking water quality.

Knowledge of modern equipment and scientific instruments used in a water quality laboratory.

Knowledge of sterile techniques used in the collection of bacteriological samples.

Knowledge of records, forms and reports used in the area of assignment.

Knowledge of quality control tests and checks used in laboratory procedures.

Ability to perform laboratory tests and procedures in accordance with established practices.

Ability to prepare various media, solutions and reagents and conduct tests for water pathogens and indicator bacteria.

Ability to make accurate observations and reports of results.

Ability to provide effective assistance in the conduct of laboratory research projects.

Ability to respond to customer complaints and inquiries.

Skill in laboratory manipulative techniques.

NEW 10-94