SCH Number 2014012012

Project Info

Title

Rinconada Water Treatment Plant Reliability Improvement Project

Description

The District proposes to improve the existing water treatment train at the aging Rinconada Water Treatment Plant (RWTP) to improve drinking water quality and reliability of operations. The Project proposes demolition/removal of many of the existing treatment facilities and processes and reconstruction of a new state-of-the-art water treatment facility within the existing water treatment plant property, while keeping the plant running at all times. The four principal modifications to the RWTP are as follows: 1) Addition of raw water ozonation facilities and processes; 2) Replacement of the existing water clarification process/facilities with conventional flocculation and sedimentation processes with plate settlers; 3) Removal and replacement of the water process filters; and 4) Increase in plant capacity from 80 million gallons per day (mgd) to a maximum of 100 mgd to provide an increase in peaking capacity for plant reliability. In plain terms, the project is the systematic tear down of much of the existing steel and concrete structures (old water treatment facilities and processes) to reconstruct a new state-of-the-art water treatment facility on the existing water treatment plant property, while keeping the plant running at all times. The project includes the onsite temporary conversion of the lower sludge drying bed to a construction staging area and the offsite-temporary add 30-50 construction worker parking spaces during construction. The project includes green development features such as solar panels, a truck tire-wash (to keep trucks from tracking soil into the streets during construction), and recycling of construction/demolition debris (minimum 50%). Construction duration is expected to last five to seven years due to phasing and requirements to keep the plant running during construction. Construction is slated to start in 2015.

3 documents in project