AGENDA ITEM # 59 KEY FOCUS AREA:
February 26, 2014
Forest E. Turner, 670-3390
SUBJECT Authorize Supplemental Agreement No. 2 to the professional services contract with Westin Engineering, Inc. for additional services required for the completion of the Supervisory Control and Data Acquisition project at Dallas Water Utilitiesâ€™ White Rock Operations Control Center - Not to exceed $218,400, from $1,070,767 to $1,289,167 Financing: Water Utilities Capital Improvement Funds BACKGROUND The White Rock Supervisory Control and Data Acquisition (SCADA) system is used to remotely control and monitor all pumps, reservoir levels, elevated tank levels, rate-of-flow metering facilities, and pressure points in the water distribution system. The original contract with Westin Engineering, Inc. evaluated the existing White Rock SCADA system in order to report and provide recommendations for the replacement of the obsolete system that was installed in the early 1980s. Supplemental Agreement No. 1 included engineering services for replacing the current White Rock Operations Control Center's proprietary and obsolete SCADA system. The additional scope of work consisted of the development of a SCADA system communications network consistent with citywide needs, development of SCADA system performance specifications, procurement phase services, and construction phase services. This item, Supplemental Agreement No. 2, consists of additional engineering services necessary for the completion of the SCADA project. This included review of the Remote Terminal Units instrumentation upgrade and related Electrical Design Submittals, and additional services to facilitate coordination with AT&T and the CIS Department to ensure the SCADA network complies with the Department of Homeland Security's guidelines for critical infrastructure.