From the early days of tone telemetry to today’s latest technologies, we have worked with leading government agencies and utilities to design and build some of the largest and most sophisticated SCADA systems in the world. Agencies like New York City’s Department of Environmental Protection (NY DEP) use systems built by Transdyn to safely and effectively manage their stormwater pumping and vital watershed areas.
We have expertise with all types of SCADA communication technologies from leased line to the latest Ethernet based wireless wide area networks. We combine this experience with the latest cyber security practices to build high-performance, highly secure systems.
Please browse through our featured environmental projects to learn more about our experience building SCADA systems.
Owner: City of San Diego
Location: San Diego, CA
PDF Version
System Description: San Diego’s water infrastructure is one of the most complex in the
United States. Today, the City of San Diego Water Department serves
more than 1.2 million people populating more than two hundred
square miles of developed land. In addition to three water treatment
plants, San Diego maintains and operates more than 2,890 miles of
water lines, forty-five water pump plants, ninety-plus pressure
zones, and more than two hundred million gallons of potable water
storage capacity in thirty-two standpipes, elevated tanks, and
concrete and steel reservoirs.
The system provides remote access along with a paging system
which automatically pages maintenance personnel via the City’s
paging service with alarm information. In response to a page, on duty
maintenance personnel access the system remotely with laptop
computers via dial-up modems.
Owner: City & County of San Francisco
Location: San Francisco, CA
PDF Version
System Description: The San Francisco Water Transmission and Distribution System
supplies water to approximately 2.5 million people in the San
Francisco Bay Area including wholesale supply of water to thirty three
cities located in Alameda, San Mateo, and Santa Clara
Counties. The SCADA system enables the City & County of San
Francisco to improve the operation and management of its water
supply, transmission, and distribution services. Water quality is
continuously monitored throughout the system, with complete
service area coverage to ensure safe and reliable delivery of high
quality water to all customers.
Three Master Computer Station/Operational Control Centers (MCS/
OCCs) at Tracy WTP, Lake Merced and Sunol WTP have fully
redundant SCADA servers with multiple workstations and
connections to seventy-eight RTU field sites.
Two additional Operational Control Centers (OCCs) at Millbrae and
Newcomb Avenue provide remote control of the system over the
frame relay WAN and VSAT satellite backup system.
A sophisticated security access system is provided with both
hardware (ID cards) and software to prevent unauthorized access
and manage various areas of responsibility.
Owner: City of San Antonio Water System
Location: San Antonio, TX
System Description: The San Antonio Water System serves approximately one million people in the urbanized part of Bexar County. This population includes approximately 300,000 separate customers. SAWS’ population is projected to increase to 2.2 million by 2050, and its water demand will roughly double over that period.
An important component of SAWS’ planning role is the responsibility to protect the purity of the city’s water supply from the Edwards Aquifer, including enforcing certain city ordinances related to subdivision development.
Under a prime contract, Transdyn was selected to provide a DYNAC® system comprised of redundant alpha servers, SQL historian servers, nine operator workstations, seven remote access laptop workstations, twenty-one upgraded RTU sites and a new spread spectrum radio system. The new system provides faster system performance and new development tools for reports, graphics and database maintenance.