201 N. Civic Drive, Walnut Creek, Calif. 94596
FOR IMMEDIATE RELEASE
Brown and Caldwell engineers an Oscar
$114 million Littleton-Englewood WWTP upgrade wins one of eight ‘Academy Awards of Engineering’
April 29, 2010, WALNUT CREEK, Calif. — And the 2010 ACEC Engineering Grand Award goes to …
environmental engineering firm Brown and Caldwell, for its $114 million expansion and upgrade of the Littleton-
Englewood Wastewater Treatment Plant in Englewood, Colo., considered a model for the future.
The “Oscar” was presented April 27 during the American Council of Engineering Companies (ACEC) annual gala,
dubbed the “Academy Awards of the engineering industry.” Each year, the ACEC reviews the top projects from
each state and selects a few for the national Grand Awards. This year, with nearly 170 projects in the competition,
ACEC selected the Littleton-Englewood project as one of the top eight Grand Awards.
“It’s an honor to receive one of these prestigious awards,” says Brown and Caldwell’s Kirk Petrik, who managed the
Littleton-Englewood project. “It was truly a team effort from Brown and Caldwell and the staff at the plant that
resulted in a highly successful project that benefits the environment and the ratepayer.”
In December 2008, the company and plant staff wrapped up its eight-year effort to reduce nitrate levels and expand
the facility’s capacity to address growth needs for the next two decades. Petrik led a Brown and Caldwell team that
designed and then managed four years of construction with Western Summit Constructors as the general contractor.
The expansion featured a new patented process that reduces nitrate levels, cost-saving waste-flow recycling and an
advanced control system that analyzes plant performance and diagnoses operational problems.
Throughout the project, Brown and Caldwell assisted in negotiating government regulations to protect the public
and the environment, as well as reduce costs to ratepayers.
“This project positioned the Littleton-Englewood Wastewater Treatment Plant for all future regulatory requirements,”
says Stewart Fonda, Englewood’s Utilities Director. “It is one of the most advanced facilities in the state and nation. It
does a great job in preserving our water quality.”
Design improvements embody environmental stewardship principles while optimizing plant performance and ensuring
affordable sewage treatment. The patented denitrification process simultaneously removes nitrates and performs tertiary
water filtration within the process train; the first of its kind individual methanol feeds reduce chemical use. Combined
with effluent recycling, the process produces a higher quality effluent and will save up to $50,000 in monthly
A new Supervisory Control and Data Acquisition (SCADA) system automates all processes, provides real-time
alerts and enables operators to monitor the facility from remote locations, which increases safety. The system
accesses more than two million pieces of data compared to about 2,500 in the old system.
“We created a superb human-machine interface that could set a new standard for the industry,” says Gary Wyse, the
plant’s SCADA administrator. “The depth of information we can get is unbelievable … Operators can access any
piece of data or diagnostic immediately.”
The Littleton-Englewood plant processes wastewater from 22 sanitation districts and serves more than 300,000
residents covering a 100-square-mile area.
When construction began in 2004, the project was the largest of its kind in Colorado. Improvements were made to all 11
treatment processes on the 40-acre site, while the facility remained fully operational. Repairs to the facility’s aging
infrastructure took place in conjunction with system upgrades, minimizing future capital improvement costs.
The project came in $3 million under budget and ahead of the state’s compliance schedule. In addition the highly
complex project, which required 26 total plant shutdowns, 1100 disruptions to the existing process, and 2678
contractor notifications to construct, was completed without compromising existing treatment (no permit violations),
and minimal impact to the community along with an exceptional safety record.
Photos and video of the Littleton-Englewood Wastewater Treatment Plant Upgrade are available.
About Brown and Caldwell
Since 1947, Brown and Caldwell has delivered innovative, enduring environmental solutions for municipalities, private industry and
government agencies throughout the United States. An employee-owned company, Brown and Caldwell is relentlessly focused on
client needs, and brings decades of engineering and scientific experience to every project. For more information visit