Current Lift Stations

Terre Haute currently has 85 lift stations (82 sanitary, 3 storm). The Terre Haute Waste Water Treatment Plant has a 12 mgd average daily flow with wet weather peaks of over 50 mgd. 

Daily checks and maintenance are carried out on all WWTU owned lift stations.

Completed Improvements

All of the following projects have been completed in the last two years:

  • Rehabilitated Lift Stations - The valves, check valves, pumps, piping, and control panels were all replaced.
    • Youngstown
    • Country Walk
    • Park Avenue
    • Seelyville
    • Glen North
    • Prison Lift
    • Hulman Dam

  • Installation of New Pumps and Controls
    • Glen Maple
    • Morris and 4th Street
    • Florida

Click here to view a description of Terre Haute's
Wastewater Treatment Plant

  • Installation of back-up Power Generators - This will allow continuous service in a power outage.
    • South Side
    • Oak Grove
    • Seelyville

  • Float Switches - Float switches are used by sewage plants to monitor the level of liquid at a certain point. Due to the toxic nature of Mercury, ALL Mercury floats have been changed out to mechanical floats.

The main lift station has had all new drives installed and each of the four 18 mgd pumps has been overhauled.  In the near future they are planning a major cleaning of the wet well and gravity interceptor.  This will require a massive bypass effort and heavy sewer cleaning along the Wabash River.

Large Diameter Sewer Rehabilitation

Approximately 21,000 linear feet of existing sewer was rehabilitated using wire mesh and Shotcrete on Hulman Street, Walnut Street, and Spruce/Chestnut Streets.

 

Sewer before rehabilitation

 

Sewer after wire mesh and Shotcrete

 

Scheduled Improvements

The following are scheduled to be rebuilt this year, they will have new forced mains, wet wells, pumps, valves and piping:

  • 27th Street and Maple Avenue
  • Maplewood and 10½ Streets
  • Voorhees Street

Studies of Possible Improvements

At the storm station at 26th and Maple, a study is being conducted to determine the possibility of a bar rack system to remove trash and debris from this separate storm lift station.

Two sump pump/I and I studies have been completed.  Wyndham and Water Tree subdivisions have experienced years of high wet weather flows which have led to illegal overflows.  The studies were conducted in these sanitary sewer systems in an effort to offset the costs of building new oversized pump stations and forced mains.  Many groundwater/rainwater connections were found and deleted.  This has led to fewer overflows and no need for new construction.  Testing will continue on high flow separate sanitary sewer areas to offset wet weather costs and lower our overall flow for the LTCP and Wastewater Treatment plant.

New Purchase

Two new sewer cleaning trucks were purchased in 2006-2007 and are tasked with cleaning the entire system.  The WWTU maintain all publicly owned sanitary/combined sewers and also maintain storm sewers within City limits.

Plant Improvements

Much of 2007 was spent upgrading the Sludge Digesters at the WWTP.  In Phase 1, a new Aqua Aerobics aerating system was installed to help reduce the odor associated with sludge digestion.  That Project is about 97% complete and is weeks away from coming online.  The project was installed in-house with an overall savings of an estimated $1 million!  After Phase 1 is online, Phase 2 will commence.  All of the equipment and piping for Phase 2 has been purchased and is ready to install.  Once completed the project could reduce the volume of sludge produced at the WWTP by as much as 80%.  This will greatly reduce final disposal costs for years to come.

A septic receiving station was installed at the WWTP in 2007.  This station helps reduce the amount of trash processed at the plant.  The trash and floatable material is taken directly out of the septic haulers flow and placed into a dumpster.  This will help long term O&M costs and minimize septic hauler’s grease and trash at the plant.

Many smaller projects and daily maintenance are ongoing.  The plant infrastructure is aging water, sewer, storm and electric lines have been repaired, replaced or reworked.  Also pumps, valves and piping have been updated or replaced.

Photos

Click here to view photos of Terre Haute's WWTP.