Hutchens Decentralized Wastewater Treatment and Disposal Facility

Project Photos

Location: Mobile, AL
Client: Mobile Area Water and Sewer System (MAWSS)

In order to provide wastewater treatment to an outlying school and community, the Mobile Area Water and Sewer System (MAWSS) turned to Volkert to develop a decentralized treatment facility to serve users who would otherwise be limited to septic tank service.

Volkert provided the study and design for the Hutchens Decentralized Wastewater Treatment and Disposal Facility.  The system was designed to handle an initial daily flow through the sand filter unit of 60,000 gallons-per-day with expansion up to 240,000 gallons-per-day. The facility utilizes ultraviolet disinfection, a calcium hypochlorite vortex chlorination system, a 240,000-gallon effluent pumping chamber, an effluent lift station, and a 1.56-million-gallon swale pond.

Volkert supervised soil borings and groundwater monitoring and prepared groundwater elevation maps.  The firm also developed and implemented the groundwater quality monitoring plan and provided manuals for the facility. The Hutchens facility was the first utility-managed decentralized wastewater treatment and disposal system designed and constructed in the state of Alabama. It is located in a distinct watershed  from MAWSS, providing better watershed management within Mobile County. Volkert worked closely with the Alabama Department of Environmental Management and the Mobile County Health Department on Development on the regulatory procedure process for these facilities.

The completed project has been recognized with awards for engineering excellence:

  • Mobile Area Council of Engineers 2001 Mobile Area Project of the Year
  • The Alabama Society of Professional Engineers State of Alabama Project of the Year Engineering Excellence Award.

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Scope of Work: Feasibility Study, Soil and Groundwater Analysis, Regulatory Coordination, Facility Design, Environmental Management Plan, Operational Documentation