1:
INITIAL OPERATIONS CHALLENGES

2: PROJECT
BACKGROUND

3: ALLIANCE
ACHIEVEMENTS

1: Initial Operations Challenges

• 
  Dispose of an excess inventory of waste
  biosolids which had been stored in one of the system’s aeration
  basins.
• Bring deteriorated mechanical equipment
  back up to serviceable condition.
• Effective operation of a biological
  wastewater treatment plant which serves one of the state’s
  most popular resort areas and receives seasonal flow variations
  greater than 100%.

2: Project Background

Alliance was selected to provide contract
operation and maintenance of the Lake Ozark/Osage Beach
Joint
Wastewater Treatment Plant in a competitive procurement process
in early 1999. The treatment facility is a 2.4 mgd regional
treatment plant that serves the resort cities of Lake Ozark
and Osage Beach, as well as nearby unincorporated areas.
The
facility is owned and administered by a joint utility board
of directors consisting of four municipal representatives
from each of the two cities.

The treatment plant is the primary public
wastewater treatment facility serving the entire Lake of the
Ozarks area. While it primarily serves partner cities, much
consideration is being given to the expansion of service to
other communities in the area, and to additional unincorporated
areas in order to protect water quality in the large Lake
of the Ozarks.

3: Alliance
Achievements

• Alliance recruited and trained a highly
  qualified operations and maintenance staff to replace the
  personnel of its predecessor contract firm.
• Alliance has initiated an aggressive asset
  maintenance and management program to restore failing mechanical
  equipment, and at no additional cost provided all the labor
  and technical expertise necessary to rehabilitate return
  activated sludge pumps and automatic bar screens.
• Alliance has furnished a variety of ancillary
  support services to the joint board, such as a comprehensive
  Y2K program and grant procurement services, all at no additional
  charge.
• Alliance consistently accommodates the system’s
  unusual seasonal flow variations and produces exceptional
  effluent water quality with BODs and TSS concentrations
  which are typically under 5 mg/l.
• An aeration basin had been adopted for excess sludge overflow storage. In 2004, Alliance addressed the sludge surplus issue then reclaimed the aeration basin for its original use. Mixed liquors in each of the facilityÕs aeration basins have remained below 5000 mg/L.
• Ongoing maintenance is now managed by a computerized maintenance work order program.
• Waste biosolids management was a major concern for the joint board. Alliance implemented an aggressive land application program, productively recycling over 1.5 million gallons per year on area farm fields. In 2004 and 2005, 1336 tanker loads (4,943,200 gallons) of biosolids have been applied to local farm fields. Hiring a separate contract hauler to perform this service would cost in excess of $100 per hour.
• The grit chamber system had been malfunctioning for some time before the Alliance contract. Because uncontrolled grit could cause costly maintenance issues throughout the rest of the wastewater equipment, Alliance made it a priority to put the grit system back into service. We were able to troubleshoot and make modifications in-house, saving the joint board in excess of $100,000 in replacement parts and installation costs.