CWEA Collections System Maintenance, Grade 4, Exam Questions and Answers (2025 / 2026) (Verified Answers)

CWEA COLLECTIONS SYSTEM MAINTENANCE GRADE 4
QUESTIONS AND VERIFIED ANSWERS
A+ GRADE




1. AA: atomic absorption

2. AC: power alternating current

3. ac: acre

4. AF: acre-foot (feet)

5. AFY: acre-foot per year

6. AMSA: Association of Metropolitan Sewerage

Agencies

7. ANSI: American National Standards Institute

8. APHA: American Public Health Association

9. AS: activated sludge

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,10. ASCE: American Society of Civil Engineers

11. ASME: American Society of Mechanical

Engineers

12. ASTM: American Society for Testing and

Materials

13. AWT: advanced wastewater treatment

14. AWWA: American Water Works Association

15. BECP: Business Emergency and

Contingency Plan

16. BNR: biological nutrient removal

17. BOD5: biochemical oxygen demand after 5

days

18. BTU: British thermal unit

19. C: Celsius

20. Cal-OSHA: California Occupational Safety and

Health Act

21. Cal-EPA: California Environmental Protection
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, Administration

22. CBOD: carbonaceous biochemical oxygen

demand

23. CCE: carbon chloroform extract

24. CCR: California Code of Regulations

25. cf: cubic feet (foot)

26. CFR: Code of Federal Regulations

27. cfs: cubic feet per second

28. CH4: Methane

29. CIU

Categorical Industrial User CIU:

Categorical Industrial User




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