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Recycled Water Quality Data

Recycled water produced by Delta Diablo meets all regulatory requirements for unrestricted non-potable reuse. 
The Delta Diablo laboratory tests the parameters listed in the table on a monthly or quarterly basis to ensure recycled water meets the needs of our industrial and landscape irrigation customers.

The image shows recycled water quality data for 2025, including averages and ranges for various constituents like pH, hardness, and nutrients.