Award-Winning Water Supply System Lowers Usage and Costs


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To reduce water usage and high costs, the GBI collaborated with McKenney’s to implement a more feasible, affordable and sustainable solution.

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Award-Winning Water Supply System Lowers Usage and Costs

  1. 1. PROJECT HIGHLIGHTS Award-Winning Water Supply System Lowers Usage and Costs T he Georgia Bureau of Investigation (GBI) headquarters in Decatur had been coping with high nonpotable water usage and costs to support systems fed by the county water supply. In fact, the GBI consumed 1,000,000 gallons month—costing $34,400 annually. From this information, they also developed a b ­ aseline meter reading for the winter months of just over 140,000 gallons per month. The source of the additional 230,000 gallons per month on average was then pinpointed —the cooling tower make-up water and ­rrigation systems. i To lessen county water usage, the GBI staff developed an inno­ vative alternative water capture s ­ ystem and enlisted McKenney’s engineering expertise and capa­ bilities to implement the system. It consisted of two cisterns with 10,000-gallon total storage capacity and an on-site well that pumps water to the cisterns. In “ cKenney’s also installed a pump, control addition, the system also tapped M into condensate water from air valves and piping to the cisterns …” ­ handlers in the GBI’s Annex during a typical hot August. Hoping to building and diverted rainwater from the reduce its water usage and its high costs, b ­ uilding’s roof to the cisterns. ­ cKenney’s M the GBI collaborated with McKenney’s to also installed a pump, control valves and implement a more feasible, affordable and p ­ iping to the cisterns to distribute the stored sustainable solution. water to the cooling tower make-up and ­irrigation systems. After several years of monitoring water usage and carefully analyzing the data, the With its new non-potable water supply GBI staff determined that they consumed s ­ ystem operating successfully, the GBI an average of 370,000 gallons of water a expects to achieve $20,000 in cost savings The content of this document is not intended as an endorsement. For more information contact McKenney’s at 404-622-5000.   McKenney’s, Inc.    1056 Moreland Industrial Boulevard, Atlanta, Georgia 30316 Project Team žž Owner: Georgia Bureau of I ­nvestigation and CBRE, Inc. žž Engineer: McKenney’s, Inc. The Challenge žž Calculate water usage and costs history žž Pinpoint source of excesses žž Devise supplemental water supply solution The Solution žž Dig an on-site well and install storage cisterns žž Capture condensate and r ­ ainwater for cisterns žž Pipe water from cisterns to cooling tower and irrigation systems The Results žž Cost savings of $20,000 annually žž Project earned 2013 GASFA ­Innovation Award žž System payback of four years annually, which allows the system to pay for itself in just four years. With such significant results—not only in cost savings but also reduced environmental impact—the project earned a 2013 Innovation Award from the Georgia Association of State Facilities Administrators (GASFA). It also paves the way for other state agencies with a high demand for non-­ otable water to enlist a p similar solution to lower water use and costs, provided it has the infrastructure to support an on-site well and water storage system. Copyright © 2013 McKenney’s, Inc., Atlanta, Georgia. All rights reserved. Printed in the U.S.A. McKenney’s, Inc. and the McKenney’s, Inc. logo are registered trademarks of McKenney’s, Inc. All other trademarks are the property of their respective owners.