South Pasco Water Treatment Plant Caustic Feed System - Tampa Bay Water

South Pasco Water Treatment Plant Caustic Feed System

The South Pasco Water Treatment Plant has been in operation since 2003 and supplies up to 30 million gallons of water per day to Hillsborough County and the City of St. Petersburg. The plant treats water from the South Pasco Wellfield and blends it with regional system water to help meet demand at downstream points of connection. The facility uses chlorine and ammonia to purify water.


This project includes design and installation of a pH adjustment chemical feed system in the existing water treatment plant chemical building. Caustic soda (sodium hydroxide) will help stabilize the disinfectant residual, which will improve the water quality downstream. The caustic soda addition will also allow for more consistent and higher volume use of the wellfield. These improvements were recommended in a 2019 Water Quality Study.

Additionally, this project will address safety and stormwater maintenance at the project site.


The South Pasco Water Treatment Plant Water Improvements Project will improve the overall quality of the water coming from the plant to the regional system by raising the pH of the final treated water to a level similar to the pH level of the regional system.


Total cost for design and construction is $1,118,050.

Time Frame

This project is scheduled to be completed by September 2022.

Public Impacts

This project has no public impact as all work is contained within Tampa Bay Water property.