FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
title
UNINTERRUPTIBLE POWER SUPPLY IMPROVEMENTS AT PLANT NO. 1, PROJECT NO. P1-132
end
GENERAL MANAGER'S RECOMMENDATION
recommendation
RECOMMENDATION:
A. Approve a Professional Design Services Agreement with Tetra Tech, Inc. to provide engineering services for Uninterruptible Power Supply Improvements at Plant No. 1, Project No. P1-132, for an amount not to exceed $784,680; and
B. Approve a contingency of $78,468 (10%).
body
BACKGROUND
The Orange County Sanitation District (Sanitation District) has numerous smaller uninterruptible power supply (UPS) units throughout the northwest area of Plant No. 1. These units maintain power to process control systems in the event of power failure.
RELEVANT STANDARDS
* 24/7/365 treatment plant reliability
* Comply with Government Code Section 4526: Select the "best qualified firm" and "negotiate fair and equitable fees"
PROBLEM
Small, individual UPS units are less reliable and more prone to loss of functionality than a regional UPS unit, which could leave critical pieces of equipment unprotected in case of a power failure. Additionally, electrical equipment in some non-process areas has exceeded its useful life and needs replacement.
PROPOSED SOLUTION
Implement Uninterruptible Power Supply Improvements at Plant No. 1, Project No. P1-132. This project will replace the individual UPS units with a single industrial-grade regional UPS that can be cost-effectively maintained and monitored for a more reliable power supply. The project will also replace old electrical cables, step-down transformers, and distribution and branch circuit panelboards at Buildings A, B, 5, 6, Warehouse, and Fleet Services. This equipment has exceeded its useful life and needs replacement
In order to accomplish this, the professional engineering services of a consulting firm are required.
TIMING CONCERNS
The ...
Click here for full text