1. Build on Your Experience: Leverage your hands-on experience by taking advanced courses in water and wastewater technology. Courses in biology, chemistry and environmental science can deepen your expertise.
2. Seek Specialized Training: Participate in specialized training programs or workshops to stay updated with the latest industry practices and technologies. Look for opportunities through professional associations or local colleges.
3. Advance Your Certification: Consider pursuing higher-level certifications or licenses. These often require passing advanced exams and demonstrating a higher level of expertise, which can open doors to supervisory or management positions.

For experienced treatment plant operators, continuous education and advanced certifications are key to career advancement and staying at the forefront of the industry.