Why is the treatment process necessary?

The State Water Resources Control Board’s Division of Drinking Water (DDW) now requires advanced treatment of drinking water for 1,2,3-Trichloropropane (TCP).  TCP is a chemical that was an unnecessary ingredient in agricultural soil fumigants applied to farm fields from the 1950s to the 1980s.  After being applied to the ground over many years, TCP has migrated down into our groundwater and has been detected in some District wells.

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1. What is the Plant 30 Wellhead Treatment Project?
2. Why is the treatment process necessary?
3. How does this process differ from MVWD's other treatment processes?
4. What is the anticipated timeline for construction of the Plant 30 Wellhead Treatment Project?