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:

• Style 489 Stainless Steel Type 316 Rigid Coupling
• Style 307 AWWA Transition Coupling
• Series 465 Stainless Steel Plug Valve
• Series 416 Stainless Steel Check Valve

Publications

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