What is gray water? Can I use it?

Gray water includes wastewater from showers, bathtubs, bathroom sinks, laundry tubs and washing machines, but not from toilets, kitchen sinks or dishwashers. The latter sources typically have high bacterial content, making them unsuitable for irrigation. Gray water comprises 50 - 80% of residential wastewater. California regulators have recently loosened the requirements for using gray water for certain irrigation purposes by issuing an emergency decision that allows residents to create simple water-reuse systems without a construction permit. View more information about California's new standards for gray-water systems (PDF).

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1. Where does our water come from?
2. Who is the Metropolitan Water District?
3. How much does our water cost to import?
4. How does SMWD determine its water rates?
5. What are the current water and sewer rates?
6. How does the District's tiered rate structure work?
7. What can I do to lower my bill?
8. Why do I pay a power surcharge?
9. An item on my bill reads "WHOLESALE PASS THRU CHRG." What is it?
10. Does SMWD offer a low income rate?
11. Why does my tax bill show an increase in a SMWD improvement district bond levy?
12. What has SMWD done to reduce its dependency on imported water?
13. What is gray water? Can I use it?
14. What are the official rules and regulations concerning water, recycled water and wastewater service?