Contegra Construction Co. is targeting a fall 2015 completion for the renovation and expansion of the water treatment plant that serves Roxana, Ill. The $7,961,000 project will boost the facility’s water storage capacity from 1.15 million gal to 1.65 million gal and bring it up to U.S. Environmental Protection Agency regulatory compliance standards.
Built in 1977, the plant has not been comprehensively upgraded in more than 20 years. It will remain fully operational in the southwest Illinois community during construction.
In step with strategic, sequential demolition, Contegra is installing a new forced draft aerator, a hydrated lime line-feed system, water filters and modifying the flow path of process water to existing clarifiers. The Edwardsville, Ill.-based contractor is also erecting a new chemical feed building and a 9,600-sq-ft addition to the existing filter building. Meanwhile, a structure that hosts clarifiers, a 750,000-gal ground storage tank and an elevated 300,000-gal storage tank are being repainted.
“The new equipment and buildings require extensive SCADA (supervisory control and data acquisition) communication system, electrical and above- and below-ground piping upgrades,” said Joe Koenig, Contegra project manager. “We’re working with pipe ranging in diameter from one-half inch to 24 inches.”
Curry and Associates Engineers, Inc., based in Nashville, Ill., is project designer.
Source: Contegra Construction Co.
