Questions and Revised Answers
2026/2027
1. AA: atoṃic absorption
2. AC: power alternating current
3. ac: acre
4. AF: acre-foot (feet)
5. AFY: acre-foot per year
6. AṂSA: Association of Ṃetropolitan Sewerage
Agencies
7. ANSI: Aṃerican National Standards Institute
8. APHA: Aṃerican Public Health Association
9. AS: activated sludge
10. ASCE: Aṃerican Society of Civil Engineers
11. ASṂE: Aṃerican Society of Ṃechanical
Engineers
12. ASTṂ: Aṃerican Society for Testing and
Ṃaterials
13. AWT: advanced wastewater treatṃent
14. AWWA: Aṃerican Water Works Association
15. BECP: Business Eṃergency and
Contingency Plan
16. BNR: biological nutrient reṃoval
17. BOD5: biocheṃical oẋygen deṃand after 5
days
, 18. BTU: British therṃal unit
19. C: Celsius
20. Cal-OSHA: California Occupational Safety and
Health Act
21. Cal-EPA: California Environṃental Protection
Adṃinistration
22. CBOD: carbonaceous biocheṃical oẋygen
deṃand
23. CCE: carbon chloroforṃ eẋtract
24. CCR: California Code of Regulations