Coldwater-Aerial|

Paul B. Krebs Water Treatment Plant Improvements

Anniston, AL

Owner: Water Works & Sewer Board of the City of Anniston

Size: 22 MGD

Project Stage: Complete

Award Winner: American Consulting Engineers Council, National Engineering Excellence Award Finalist; American Consulting Engineering Companies of Alabama, Engineering Excellence Grand Award; Alabama Branch of the Association of General Contractors, Build Alabama Award; Associated Builders & Contractors, Inc., Excellence in Construction

Project Services: Civil Engineering, Architecture, Mechanical Engineering, Treatment System Process Design, Structural Engineering, Electrical Engineering, Landscape Architecture, Permitting, Construction Administration

Description: Project included a 7,100 square foot addition to an existing 6,500 square foot treatment plant, plus additional treatment units. Improvements include  a pump room, raw water micro-screens, chlorine storage and feed system, 3MMG disinfection contact basin and clearwell, major improvements to yard piping,  new locker rooms, new administrative space, a new break room, laboratory, maintenance building, new electrical controls, new instrumentation, and security system.   The design of the improvements reflects the historical character of the plant at the end of the 19th century.  The plant is located at Coldwater Spring which is the raw water source for the treatment process.  Coldwater Spring is a natural spring with pristine water quality and is the only known habitat for the Pygmy Sculpin, an endangered fish species. The design required provisions for protection of this fragile ecosystem and allowances for continuing operation of the plant during construction. The facility provides potable water to more than 65,000 people. The facility also serves as an environmental teaching lab with a display area focused on water resources, geology, and ecology.  Krebs obtained a surface water filtration variance from EPA resulting in the saving of approximately $25 million in construction cost.