| Across | Down | ||
| 2. | Causes clumping | 1. | Tertiary treatment filter |
| 6. | Put grease in the____, not down the drain | 3. | Home sewer pipe |
| 8. | Cooking oils, salad dressings, soups | 4. | digester gas |
| 9. | City sewer pipe | 5. | Undigested solids |
| 13. | Laterals, mains, trunk sewers (2 words) | 6. | Leading cause of sewer spills (2 words) |
| 16. | Fats, Oils, and Grease | 7. | Reuse |
| 17. | Point Loma's Treatment Process (2 words) | 10. | Disinfectant |
| 18. | Toilet contents | 11. | Processed waste |
| 12. | Sewage | ||
| 14. | Cleaned wastewater | ||
| 15. | clean | ||