Lower Meramec Wastewater Treatment Plant

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Project Type: Treatment Plant
Owner: Metropolitan St. Louis Sewer District
Engineer: Crawford Murphy and Tilly-Raed Armouti
Contractor: Haberberger Mechanical Contractors
Pipe Material:
  • Stainless Steel
Pipe Size: 4-8"/ DN100-200
Location: St. Louis, MO, USA

The Lower Meramec Wastewater Treatment Plant, operated by the Metropolitan St. Louis Sewer District (MSD), treats an average of 15 million gallons of wastewater each day. In 2012, investors decided to provide billions of dollars over a span of a generation to improve water quality, build community rain scaping, and carry out far-reaching system improvements, including upgrades to aging pipe and facilities.

The influent pump station was an essential upgrade of the Lower Meramec facility. The original ductile iron (DI) pipe installed at the plant had experienced corrosion, and the MSD made the decision to replace the DI piping – much of which was 200 ft underground – with stainless steel (SS) for greater corrosion resistance and longevity.

On the pump station, Victaulic provided solutions for stainless steel pipe. This included 4-, 6-, and 8-inch grooved couplings, valves, and fittings that were utilized on the subsurface drain lines. The Victaulic solutions utilized the following grooved products:



Metropolitan St. Louis Lower Meramec River Wastewater Treatment Plant Completed, 2010 ENRMidwest

Wet Conditions, Complications Challenge Wastewater Treatment Plant Upgrade, Opflow

Lower Meramec Wastewater Treatment Plant Upgrade, Water & Wastes Digest

Virtual Tour

Lower Meramec Wastewater Treatment Plant, St. Louis, Missouri