Project Name: RM Clayton WRC Sand Filter Media Change-Out and Refurbishment

The R. M. Clayton Water Reclamation Center (WRC) located in northwest Atlanta along the Chattahoochee River. Constructed in 1935, the facility provides wastewater treatment for a service area that encompasses the City of Atlanta primarily north of I-20, a small portion of north Fulton County adjacent to Sandy Springs, and most of north DeKalb County. The facility is designed to treat an average daily maximum monthly flow of 122 million gallons per day (MGD) of wastewater for discharge to the Chattahoochee River under a National Pollutant Discharge Elimination System (NPDES) Permit. 
 
The R.M. Clayton WRC treatment process removes biological and chemical impurities from the wastewater in three phases: primary treatment, secondary treatment, and tertiary treatment. The primary treatment process involves the removal of floatable and settleable solids. Next, during the secondary treatment phase, biological treatment reduces the concentration of organic and chemical pollutants in the wastewater. Finally, tertiary treatment removes the remaining suspended solids, disinfects the treated water using ultraviolet radiation, and increases dissolved oxygen concentrations before discharging to the Chattahoochee River. Primary sludge and biological solids that are removed during the wastewater treatment process are reduced in the digestion process before being dewatered and incinerated or hauled to a landfill. 
 
The purpose of this project is to restore design operation and reliability of the deep bed filters at the R.M. Clayton WRC.  In addition, the underdrain system in need of comprehensive service and in some portions repair or replacement. 
 
The scope of this project includes: 

•   Changing the media of the deep bed filter  
•   Refurbishing the underdrain system 
•   Repairing equipment associated with the automatic operation of tertiary filtration 
•   Repairing equipment on 22 deep bed filter cells 

 
Justification: 

•   Restores the effectiveness of the filtration process  
•   Reduces filter backwash frequency and duration, reducing maintenance costs  
•   Improves overall plant reliability in meeting permit limits

 
 
Project Type: Water Reclamation Centers and Facilities 
Project Start: 04/2016
Proposed Construction Start:  N/A 
Scheduled Completion: 02/2019 
Project Budget: $6,983,000 
Council District(s): 2, 3, 4, 5, 6, 7, 8, 9 
NPU(s): D 
Project Status: Complete / Construction