Upon receipt of a positive controlled substance or alcohol test result, an employee's refusal to provide a sample, an employee's tampering with a sample, or an employee's producing a cold or diluted sample, the City may, in its discretion:
A. Refuse to hire a prospective employee;
B. Subject the person to disciplinary action, which may include termination of employment;
C. Take other nondisciplinary measures in conformance with the City's policies and procedures. (2019 Compilation)