Brockton, Massachusetts

Clients

Brockton, Massachusetts

The challenge

At the end of the current contract, the Brockton-Veolia North America partnership will be well into its third decade, making this relationship one of the longest-running programs in the operation/maintenance/management (O&M) industry and one that has enhanced the city's water and wastewater treatment processes.

The project challenges are:

  • In 1988 the City of Brockton faced drinking water odor, taste and color issues and a lack of funds to make critical improvements. 
  • Veolia provided the first year of service at no cost because of its ability to achieve operational savings of more than $500,000 per year. Under an O&M contract, Veolia is responsible for the city's water facilities: 24-MGD surface water treatment plant, 1.3-MGD surface water treatment plant, two raw water pump stations and two ground storage tanks; wastewater facilities: 20.49-MGD tertiary treatment plant and three pump stations; Industrial Pretreatment Program, septage receiving; and sludge incineration with on-site ash disposal.

Veolia’s solution

Innovative solutions:

  • Modify and supplement existing water treatment facilities and resolve taste and odor problems.
  • Implement a detailed audit at water plants to determine what changes were necessary.
  • Initiate corrosion control program to eliminate red water complaints.
  • Develop filter media replacement program at water plants to correct taste and odor problems.
  • Install new filters and effluent turbidometers on water plant pumps to save power; install chlorine booster stations to control summer water quality issues; implement turnover program to prevent freezing and water stagnation in storage tanks.
  • Make major improvements to wastewater plant operations, including switching from lime and ferric chloride to polymer for conditioning, which greatly increases sludge processing capacity while reducing cost of chemicals and energy.
  • ​Provide a process control system for more efficient and cost-effective operation of wastewater treatment facilities; make minor design changes to meet summer discharge limits; implement single-state nitrification to save thousands of dollars in electrical, chemical and manpower costs; and operate odor control system to eliminate odors and complaints year-round.

Benefits to our client

Results:

  • Reduced costs dramatically for cleaning sludge lagoons.
  • Cut cleaning time from two days to four hours by designing and building a filter cloth cleaning system.
  • Reduced odors, saved time, equipment use and costs by implementing chemical precipitation of phosphorous with ferrous sulfate.
  • Won two Group Safety Awards from the Massachusetts Safety Council.
  • Achieved finalist status for EPA's Public Water System Award.
  • Earned second-place finish for Best Large Plant in the State for Water Quality.
  • Garnered excellent ratings from Save the Bay environmental organization.